CONTROL OF ACCESS TO POWER MACHINE FUNCTIONALITY

Abstract

A control system of a power machine can be configured to allow certain power machine functionality based on a wireless connection with a mobile device. For example, a power machine can operate in a startup mode providing limited functionality to an operator (e.g., engine power, but no workgroup actuators). Access to additional power machine functionality (e.g., full functionality) can then be permitted based on establishing a wireless connection to a mobile device that corresponds to an operator profile for the power machine.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to U.S. provisional application No. 63/230,195, filed Aug. 6, 2021, the entirety of which is incorporated herein by reference.

BACKGROUND

This disclosure is directed toward power machines. More particularly, this disclosure is directed toward enabling or disabling power machine functionality during startup procedures for power machines. Power machines, for the purposes of this disclosure, include any type of machine that generates power to accomplish a particular task or a variety of tasks. One type of power machine is a work vehicle. Work vehicles are generally self-propelled vehicles that have a work device, such as a lift arm (although some work vehicles can have other work devices) that can be manipulated to perform a work function. Work vehicles include loaders, excavators, utility vehicles, tractors including compact tractors, and trenchers, to name a few examples. Other types of power machines can include mini-loaders (e.g., mini track loaders), and mowers.

The discussion above is merely provided for general background information and is not intended to be used as an aid in determining the scope of the claimed subject matter.

SUMMARY

Examples of the disclosed subject matter can use a wireless connection between a mobile device and a power machine to provide access to certain power machine functionality. In some examples, this can allow operators to execute certain operations under a limited functionality mode until a connection is established between a power machine and an approved operator's mobile device. The mobile device can sometimes be associated with a corresponding operation profile, and the power machine can execute operations based on that operation profile (e.g., switch to a full functionality mode, to allow for full operation of all power machine functions).

According to some aspects of the present disclosure, a control system for a power machine is provided. The control system can include an input device operatively connected to a power source of the power machine and a control device. The control device can be configured to enable operation of the power source of the power machine based upon receiving a signal of the input device (e.g., due to a manual actuation thereof). After receiving the signal of the input device, the control device can restrict operation of one or more power machine functions for the power machine until a wireless connection is established between the controller and a mobile device, the mobile device corresponding to an operation profile for the power machine.

In some examples, one or more power machine functions for which operation is restricted can include one or more of: operation of tractive elements or operation of work elements (e.g., workgroup elements).

According to some aspects of the present disclosure, a method of operating a power machine with a user input interface is provided. According to the method, upon receiving an initial user input to activate a power source for the power machine, the power machine can be placed in a startup mode. Based on placing the power machine in the startup mode, limited access can be provided to power machine functionality according to permissions of the startup mode. The method further includes searching, via a controller in communication with the user input interface, for one or more mobile devices, establishing a wireless connection between a mobile device and the power machine to identify an association between the mobile device and an operation profile for the power machine, and based on identifying the association between the mobile device and the operation profile, allowing access to additional power machine functionality that corresponds to the operation profile.

In some examples, permissions of a startup mode can include operation of a power source of a power machine, but not operation of one or more work elements of the power machine (e.g., tractive or workgroup elements). In some examples, additional power machine functionality for which access is allowed can be distinct from operation of a power source of a power machine and can include one of more of: operation of tractive elements or operation of work elements (e.g., workgroup elements). In some examples, additional power machine functionality can include full power machine functionality. In some examples, a mobile device can include one of a mobile phone, a tablet, a laptop, or a personal digital assistant.

According to some aspects of the present disclosure, a power machine is provided. The power machine can include a power source, an operator station, and a user input interface within the operator station, including an input device configured to receive input for activation of the power source by an operator in the operator station. The power machine can further include one or more tractive elements configured to move the power machine, one or more work elements configured to be operated for work operations using power from the power source, and a control system. The control system can be configured to activate the power source based upon a signal from the input device. After activating the power source, the control system can be further configured to: initially provide limited access to power machine functionality; establish a wireless connection with a mobile device that corresponds to an operation profile; and based upon establishing the wireless connection and after initially providing the limited access to power machine functionality, provide access to one or more additional power machine functions based on the operation profile.

In some examples, a control system can be configured to: before establishing a wireless connection with a mobile device, identify potential wireless connections with a plurality of mobile devices, including the mobile device; and prioritize establishing the wireless connection with the mobile device based on one or more of proximity, signal strength, or a predetermined priority list. In some examples, a user input interface can include a display configured to receive an activation code. A control system can be configured to bypass receipt of the activation code via the display, based on establishing a wireless connection with a mobile device.

This Summary and the Abstract are provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the claimed subject matter, nor are they intended to be used as an aid in determining the scope of the claimed subject matter.

DRAWINGS

FIG. 1 is a block diagram illustrating functional systems of a representative power machine on which examples of the present disclosure can be advantageously practiced.

FIGS. 2-3 illustrate perspective views of a representative power machine in the form of a skid-steer loader of the type on which the disclosed examples can be practiced.

FIG. 4 is a block diagram illustrating components of a power system of a loader such as the loader illustrated in FIGS. 2-3.

FIG. 5 is a block diagram illustrating aspects of an operating system for use with power machines, of a type on which the disclosed examples can be practiced.

FIG. 6 illustrates a process of locking and unlocking power machine functionality based on a connection with a mobile device.

FIGS. 7-10 illustrate example graphical user interfaces generated on a user input interface for controlling connections between the power machine and one or more mobile devices associated with one or more operation profiles.

DETAILED DESCRIPTION

The concepts disclosed in this discussion are described and illustrated by referring to certain examples. These concepts, however, are not limited in their application to the details of construction and the arrangement of components in the illustrative examples and are capable of being practiced or being carried out in various other ways. The terminology in this document is used for the purpose of description and should not be regarded as limiting. Words such as “including,” “comprising,” and “having” and variations thereof as used herein are meant to encompass the items listed thereafter, equivalents thereof, as well as additional items.

As used herein, the phrases “initialization process” or “computer initialization process” refer to operations executed by a computerized device when it is powered on, to prepare the device for normal operation (e.g., running BIOS or other startup procedures, activating touchscreen or other input devices, etc.). Similarly, “startup processes” refer to operations of a power machine, starting from an unpowered state, to prepare the power machine from powered operation (e.g., tractive and work operations).

Also as used herein, “power machine functionality” refers generally to movement- and power-based operations of a power machine, such as operation of a power source (e.g., engine or battery), a power conversion system that converts output from a power source into a form usable by work elements, and operation of work elements such as tractive elements and other actuators that can move work elements (e.g., lift arms or other devices), and so on. “Power machine functionality” can be distinguished from “operating system functionality,” which refers specifically to operation of display screens or other input/output devices for a control system, operation of computer-based security systems (e.g., lock-out systems), and general operation of other electronic control devices (e.g., hub controllers, etc.). Of note, however, certain power machine functionality may necessarily include or rely on operating system functionality, including during electronic control of hydraulic equipment, user input interfaces (e.g., displays), sensors, switches, actuators, and signaling devices.

Also as used herein, operation of a power machine with “limited” power machine functionality indicates operation of the power machine with access to only a subset of possible power machine functionality. In contrast, operation of a power machine with “full” power machine functionality indicates operation of the power machine with power being available for all power machine functions without restriction, (i.e., normal power machine operation). Generally, operation with limited power machine functionality can include fully restricted operation (i.e., no functionality of the power machine is permitted) or partially restricted operation (i.e., some functionality is permitted, as in the non-limiting examples below).

In some cases, limited power machine functionality can include operation of systems for non-work functions only, including operation of input devices (e.g., joystick, push-buttons, or touchscreen displays), radios, climate control systems, etc. In some cases, limited power machine functionality can be provided for a power machine even though a power source (e.g., an engine of the power machine) may be running. For example, a power source may be activated, but a user that has been permitted to access limited power machine functionality may not be able cause power to be delivered by the power source for operation of work elements or tractive elements.

Also as used herein, the phrase “mobile device” refers to a mobile phone (e.g., a feature phone or a smart phone), a tablet, a laptop, a personal digital assistant, or other mobile device that is configured for wireless communication (e.g., for communication over Wi-Fi (e.g., 2.4 GHz, 4G, 5G, etc.) and Bluetooth protocols) and can be individually electronically identified via wireless communication. (Bluetooth is a registered trademark of Bluetooth SIG, Inc. in the United States or other jurisdictions).

Also as used herein, the phrase “physical key” refers to a traditional key or key fob, typically made of metal, plastic, or combinations thereof, that can be used to access an operator compartment of a power machine and/or start the machine. In this regard, a “mechanical” physical key can be configured to mechanically engage a lock on a power machine door or other component such as a key switch on a user input panel.

Also as used herein, an “operation profile” refers to a stored record that indicates one or more permissions, preferences, or other properties related to the operation features. For example, some operation profiles may include settings that indicate a variety of different power functionality (e.g., functionality relating to traction systems, specific workgroup actuators, geographical boundaries, etc.), settings that define operational preferences of a particular operator (e.g., relating to cab/comfort settings, response characteristics of particular actuators, etc.), or settings that otherwise characterize response or permissions for power machine operations.

Under conventional designs, power machines may be equipped to provide a range of controlled power machine functionality, including via access to and control of: power from a power source (e.g., the ability to start or engage an engine), actuators for tractive operations (i.e., operations for travel over terrain), workgroup actuators for work operations (e.g., operation of hydraulic actuators for non-travel activities), comfort and other operation settings (e.g., climate control), and so on. Correspondingly, power machines generally include various control devices that control various functions, including one or more operator interfaces configured to receive operator inputs.

Some examples of the disclosed technology can provide improved startup procedures for power machines, improved management of access to particular power machine functionality, or improved (e.g., automated) configuration of power machine systems according to operator preferences or other operation profile information (e.g., functional permissions). For example, in some implementations, a control device can be configured to establish a wireless connection with a mobile device to determine appropriate permissions to correspondingly enable (i.e., permit access to and control of) select relevant power machine functionality. Thus, for example, a power machine can be configured to automatically permit certain (e.g., all) power machine operations for authorized users, and to execute those operations according to appropriate operation preferences (e.g., with customized response to control inputs), without necessarily requiring operators to use a mechanical key or otherwise manually engage with a control system to identify themselves and demonstrate appropriate authorization. Thus, some examples can help to prevent unauthorized access to power machine functionality, while streamlining access—and startup procedures generally—for authorized users.

In some examples, limited power machine functionality may be provided during a startup process before a mobile device is used to authorize particular power machine operations. For example, an operator may initiate an initialization process for a control system of a power machine (e.g., may turn on a touchscreen), or initiate a startup process for a power source of the power machine (e.g., may press an “Engine On” button) or for the power machine generally. In some cases, certain initialization (or startup) operations can then be executed accordingly, but full functionality and operation of the power machine may not be initially permitted. In other words, an operator may be permitted access to only limited power machine functionality during a startup mode of a power machine.

As part of startup operations, or at other times, the control system can then search for and establish a wireless connection with one or more mobile devices and can permit access to additional power machine functionality based on the established connection(s). For example, after an operator initiates startup for an engine or an input interface (e.g., a touchscreen), communication can be established via a wireless connection between a control system and a mobile device of the operator that has been previously associated with the control system of the power machine (e.g., it has been paired with the control system previously using a Bluetooth protocol). When the mobile device is paired with the control system, the operator who pairs the mobile device can establish a list of operation profiles that can be used by the power machine when it is connected to that particular mobile device in the future by, for example, excluding some of the available operation profiles. The available operation profiles for that mobile device will then be kept track of in the control system of the power machine. In some examples, the previously associated mobile device will detect and establish communication with the control system. In some examples, the control system will detect and establish communication with the previously associated mobile device. Once this communication is established, the control system will allow the power machine to operate according to one of the previously defined operation profiles that is selected in the control system. For example, once the association between the mobile device and the operation profile has been established, the control system can then permit additional power machine functionality for the user (e.g., full power machine functionality) based on the operation profile. The operation profile may be a default operation profile, or the operator may be able to choose from a plurality of operation profiles available to the operator once the communication has been established by selecting one from a list provided to the operator. However, during the startup operations, and before an association between the mobile device and the operation profile has been established, the control system may permit limited power machine functionality for the user (e.g., no functionality whatsoever; functionality that includes only operation of an engine; functionality that includes operation of an engine and HVAC equipment; etc.). Similarly, if the connected mobile device is not associated with an operation profile with approved access (or is not associated with an operation profile at all), the control system may continue to provide access only to limited power machine functionality, at least until appropriate authorization for the operator can be otherwise verified. In some examples, an operator may enable full functionality of a control system on the power machine even if a wireless connection is not made between the control system and a mobile device, provided the operator takes additional steps like entering a passcode manually into a display or using a physical key.

In some cases (as mentioned above), computerized devices on the power machine can automatically begin searching for, and establishing, wireless connections with mobile devices during a startup mode (e.g., during startup processes that precede verification of authorization). For example, an initialization input from an operator (e.g., an “engine on” input) can cause a control system to automatically search for nearby mobile devices and attempt to establish wireless connections accordingly. Thus, for example, startup operations may proceed relatively seamlessly in some cases, with minimal manual input from operators. Further, as generally noted above, certain power machine functionality can sometimes be available to an operator even before wireless authorization has been completed. In some other cases, as is mentioned above, computerized devices on the power machine can be found by mobile devices once the power machine is energized in a startup mode.

In different examples, different ranges of power machine functionality can be provided during startup, depending on permissions specified by a control system of the power machine for a startup mode. For example, some startup modes may allow the engine of a power machine to be started but may not allow an operator to command operations of a power conversion system for tractive or work operations. As another example, some startup modes may allow access to some operations but not to others (e.g., may permit commanded movement of only a subset of available actuators).

These concepts can be practiced on various power machines, as will be described below. A representative power machine on which the disclosed technology can be practiced is illustrated in diagram form in FIG. 1 and one example of such a power machine is illustrated in FIGS. 2-3 and described below before any examples are disclosed. For the sake of brevity, only one power machine is illustrated and discussed as being a representative power machine. However, as mentioned above, the examples below can be practiced on any of a number of power machines, including power machines of different types from the representative power machine shown in FIGS. 2-3. Power machines, for the purposes of this discussion, include a frame, at least one work element, and a power source that can provide power to the work element to accomplish a work task. One type of power machine is a self-propelled work vehicle. Self-propelled work vehicles are a class of power machines that include a frame, work element, and a power source that can provide power to the work element. At least one of the work elements is a motive system for moving the power machine under power.

FIG. 1 is a block diagram that illustrates the basic systems of a power machine 100, which can be any of a number of different types of power machines, upon which the examples discussed below can be advantageously incorporated. The block diagram of FIG. 1 identifies various systems on power machine 100 and the relationship between various components and systems. As mentioned above, at the most basic level, power machines for the purposes of this discussion include a frame, a power source, and a work element. The power machine 100 has a frame 110, a power source 120, and a work element 130. Because power machine 100 shown in FIG. 1 is a self-propelled work vehicle, it also has tractive elements 140, which are themselves work elements provided to move the power machine over a support surface and an operator station 150 that provides an operating position for controlling the work elements of the power machine. A control system 160 is provided to interact with the other systems to perform various work tasks at least in part in response to control signals provided by an operator.

Certain work vehicles have work elements that can perform a dedicated task. For example, some work vehicles have a lift arm to which an implement such as a bucket is attached such as by a pinning arrangement. The work element, i.e., the lift arm can be manipulated to position the implement to perform the task. The implement, in some instances can be positioned relative to the work element, such as by rotating a bucket relative to a lift arm, to further position the implement. Under normal operation of such a work vehicle, the bucket is intended to be attached and under use. Such work vehicles may be able to accept other implements by disassembling the implement/work element combination and reassembling another implement in place of the original bucket. Other work vehicles, however, are intended to be used with a wide variety of implements and have an implement interface such as implement interface 170 shown in FIG. 1. At its most basic, implement interface 170 is a connection mechanism between the frame 110 or a work element 130 and an implement, which can be as simple as a connection point for attaching an implement directly to the frame 110 or a work element 130 or more complex, as discussed below.

On some power machines, implement interface 170 can include an implement carrier, which is a physical structure movably attached to a work element. The implement carrier has engagement features and locking features to accept and secure any of a number of different implements to the work element. One characteristic of such an implement carrier is that once an implement is attached to it, it is fixed to the implement (i.e. not movable with respect to the implement) and when the implement carrier is moved with respect to the work element, the implement moves with the implement carrier. The term implement carrier as used herein is not merely a pivotal connection point, but rather a dedicated device specifically intended to accept and be secured to various different implements. The implement carrier itself is mountable to a work element 130 such as a lift arm or the frame 110. Implement interface 170 can also include one or more power sources for providing power to one or more work elements on an implement. Some power machines can have a plurality of work element with implement interfaces, each of which may, but need not, have an implement carrier for receiving implements. Some other power machines can have a work element with a plurality of implement interfaces so that a single work element can accept a plurality of implements simultaneously. Each of these implement interfaces can, but need not, have an implement carrier.

Frame 110 includes a physical structure that can support various other components that are attached thereto or positioned thereon. The frame 110 can include any number of individual components. Some power machines have frames that are rigid. That is, no part of the frame is movable with respect to another part of the frame. Other power machines have at least one portion that can move with respect to another portion of the frame. For example, excavators can have an upper frame portion that rotates with respect to a lower frame portion. Other work vehicles have articulated frames such that one portion of the frame pivots with respect to another portion for accomplishing steering functions.

Frame 110 supports the power source 120, which is configured to provide power to one or more work elements 130 including the one or more tractive elements 140, as well as, in some instances, providing power for use by an attached implement via implement interface 170. Power from the power source 120 can be provided directly to any of the work elements 130, tractive elements 140, and implement interfaces 170. Alternatively, power from the power source 120 can be provided to a control system 160, which in turn selectively provides power to the elements that capable of using it to perform a work function. Power sources for power machines typically include an engine such as an internal combustion engine and a power conversion system such as a mechanical transmission or a hydraulic system that is configured to convert the output from an engine into a form of power that is usable by a work element. Other types of power sources can be incorporated into power machines, including electrical sources or a combination of power sources, known generally as hybrid power sources.

FIG. 1 shows a single work element designated as work element 130, but various power machines can have any number of work elements. Work elements are typically attached to the frame of the power machine and movable with respect to the frame when performing a work task. In addition, tractive elements 140 are a special case of work element in that their work function is generally to move the power machine 100 over a support surface. Tractive elements 140 are shown separate from the work element 130 because many power machines have additional work elements besides tractive elements, although that is not always the case. Power machines can have any number of tractive elements, some or all of which can receive power from the power source 120 to propel the power machine 100. Tractive elements can be, for example, track assemblies, wheels attached to an axle, and the like. Tractive elements can be mounted to the frame such that movement of the tractive element is limited to rotation about an axle (so that steering is accomplished by a skidding action) or, alternatively, pivotally mounted to the frame to accomplish steering by pivoting the tractive element with respect to the frame.

Power machine 100 includes an operator station 150 that includes an operating position from which an operator can control operation of the power machine. In some power machines, the operator station 150 is defined by an enclosed or partially enclosed cab. Some power machines on which the disclosed technology may be practiced may not have a cab or an operator compartment of the type described above. For example, a walk behind loader may not have a cab or an operator compartment, but rather an operating position that serves as an operator station from which the power machine is properly operated. More broadly, power machines other than work vehicles may have operator stations that are not necessarily similar to the operating positions and operator compartments referenced above. Further, some power machines such as power machine 100 and others, whether or not they have operator compartments or operator positions, may be capable of being operated remotely (i.e. from a remotely located operator station) instead of or in addition to an operator station adjacent or on the power machine. This can include applications where at least some of the operator-controlled functions of the power machine can be operated from an operating position associated with an implement that is coupled to the power machine. Alternatively, with some power machines, a remote-control device can be provided (i.e. remote from both of the power machine and any implement to which is it coupled) that is capable of controlling at least some of the operator-controlled functions on the power machine.

FIGS. 2-3 illustrate a loader 200, which is one particular example of a power machine of the type illustrated in FIG. 1 where the examples discussed below can be advantageously employed. Loader 200 is a skid-steer loader, which is a loader that has tractive elements (in this case, four wheels) that are mounted to the frame of the loader via rigid axles. Here the phrase “rigid axles” refers to the fact that the skid-steer loader 200 does not have any tractive elements that can be rotated or steered to help the loader accomplish a turn. Instead, a skid-steer loader has a drive system that independently powers one or more tractive elements on each side of the loader so that by providing differing tractive signals to each side, the machine will tend to skid over a support surface. These varying signals can even include powering tractive element(s) on one side of the loader to move the loader in a forward direction and powering tractive element(s) on another side of the loader to mode the loader in a reverse direction so that the loader will turn about a radius centered within the footprint of the loader itself. The term “skid-steer” has traditionally referred to loaders that have skid steering as described above with wheels as tractive elements. However, it should be noted that many track loaders also accomplish turns via skidding and are technically skid-steer loaders, even though they do not have wheels. For the purposes of this discussion, unless noted otherwise, the term skid-steer should not be seen as limiting the scope of the discussion to those loaders with wheels as tractive elements. Correspondingly, although some example power machines discussed herein are presented as skid-steer power machines, some examples disclosed herein can be implemented on a variety of other power machines. For example, some examples can be implemented on compact loaders or compact excavators that do not accomplish turns via skidding.

Loader 200 is one particular example of the power machine 100 illustrated broadly in FIG. 1 and discussed above. To that end, features of loader 200 described below include reference numbers that are generally similar to those used in FIG. 1. For example, loader 200 is described as having a frame 210, just as power machine 100 has a frame 110. Skid-steer loader 200 is described herein to provide a reference for understanding one environment on which the examples described below related to track assemblies and mounting elements for mounting the track assemblies to a power machine may be practiced. The loader 200 should not be considered limiting especially as to the description of features that loader 200 may have described herein that are not essential to the disclosed examples and thus may or may not be included in power machines other than loader 200 upon which the examples disclosed below may be advantageously practiced. Unless specifically noted otherwise, examples disclosed below can be practiced on a variety of power machines, with the loader 200 being only one of those power machines. For example, some or all of the concepts discussed below can be practiced on many other types of work vehicles such as various other loaders, excavators, trenchers, and dozers, to name but a few examples.

Loader 200 includes frame 210 that supports a power system 220, the power system being capable of generating or otherwise providing power for operating various functions on the power machine. Power system 220 is shown in block diagram form, but is located within the frame 210. Frame 210 also supports a work element in the form of a lift arm assembly 230 that is powered by the power system 220 and that can perform various work tasks. As loader 200 is a work vehicle, frame 210 also supports a traction system 240, which is also powered by power system 220 and can propel the power machine over a support surface. The lift arm assembly 230 in turn supports an implement interface 270, which includes an implement carrier 272 that can receive and secure various implements to the loader 200 for performing various work tasks and power couplers 274, to which an implement can be coupled for selectively providing power to an implement that might be connected to the loader. Power couplers 274 can provide sources of hydraulic or electric power or both. The loader 200 includes a cab 250 that defines an operator station 255 from which an operator can manipulate various control devices 260 to cause the power machine to perform various work functions. Cab 250 can be pivoted back about an axis that extends through mounts 254 to provide access to power system components as needed for maintenance and repair.

The operator station 255 includes an operator seat 258 and a plurality of operation input devices, including control levers 260 that an operator can manipulate to control various machine functions. Operator input devices can include buttons, switches, levers, sliders, pedals and the like that can be stand-alone devices such as hand operated levers or foot pedals or incorporated into hand grips or display panels, including programmable input devices. Actuation of operator input devices can generate signals in the form of electrical signals, hydraulic signals, and/or mechanical signals. Signals generated in response to operator input devices are provided to various components on the power machine for controlling various functions on the power machine. Among the functions that are controlled via operator input devices on power machine 100 include control of the tractive elements 219, the lift arm assembly 230, the implement carrier 272, and providing signals to any implement that may be operably coupled to the implement.

Loaders can include human-machine interfaces including display devices that are provided in the cab 250 to give indications of information relatable to the operation of the power machines in a form that can be sensed by an operator, such as, for example audible and/or visual indications. Audible indications can be made in the form of buzzers, bells, and the like or via verbal communication. Visual indications can be made in the form of graphs, lights, icons, gauges, alphanumeric characters, and the like. Displays can provide dedicated indications, such as warning lights or gauges, or dynamic to provide programmable information, including programmable display devices such as monitors of various sizes and capabilities. Display devices can provide diagnostic information, troubleshooting information, instructional information, and various other types of information that assists an operator with operation of the power machine or an implement coupled to the power machine. Other information that may be useful for an operator can also be provided. Other power machines, such walk behind loaders may not have a cab nor an operator compartment, nor a seat. The operator position on such loaders is generally defined relative to a position where an operator is best suited to manipulate operator input devices.

Various power machines that can include and/or interacting with the examples discussed below can have various different frame components that support various work elements. The elements of frame 210 discussed herein are provided for illustrative purposes and frame 210 is not the only type of frame that a power machine on which the technology can be practiced can employ. Frame 210 of loader 200 includes an undercarriage or lower portion 211 of the frame and a mainframe or upper portion 212 of the frame that is supported by the undercarriage. The mainframe 212 of loader 200, in some examples is attached to the undercarriage 211 such as with fasteners or by welding the undercarriage to the mainframe. Alternatively, the mainframe and undercarriage can be integrally formed. Mainframe 212 includes a pair of upright portions 214A and 214B located on either side and toward the rear of the mainframe that support lift arm assembly 230 and to which the lift arm assembly 230 is pivotally attached. The lift arm assembly 230 is illustratively pinned to each of the upright portions 214A and 214B. The combination of mounting features on the upright portions 214A and 214B and the lift arm assembly 230 and mounting hardware (including pins used to pin the lift arm assembly to the mainframe 212) are collectively referred to as joints 216A and 216B (one is located on each of the upright portions 214) for the purposes of this discussion. Joints 216A and 216B are aligned along an axis 218 so that the lift arm assembly is capable of pivoting, as discussed below, with respect to the frame 210 about axis 218. Other power machines may not include upright portions on either side of the frame or may not have a lift arm assembly that is mountable to upright portions on either side and toward the rear of the frame. For example, some power machines may have a single arm, mounted to a single side of the power machine or to a front or rear end of the power machine. Other machines can have a plurality of work elements, including a plurality of lift arms, each of which is mounted to the machine in its own configuration. Frame 210 also supports a pair of tractive elements in the form of wheels 219A-D on either side of the loader 200.

The lift arm assembly 230 shown in FIGS. 2-3 is one example of many different types of lift arm assemblies that can be attached to a power machine such as loader 200 or other power machines on which examples of the present discussion can be practiced. The lift arm assembly 230 is what is known as a vertical lift arm, meaning that the lift arm assembly 230 is moveable (i.e. the lift arm assembly can be raised and lowered) under control of the loader 200 with respect to the frame 210 along a lift path 237 that forms a generally vertical path. Other lift arm assemblies can have different geometries and can be coupled to the frame of a loader in various ways to provide lift paths that differ from the radial path of lift arm assembly 230. For example, some lift paths on other loaders provide a radial lift path. Other lift arm assemblies can have an extendable or telescoping portion. Other power machines can have a plurality of lift arm assemblies attached to their frames, with each lift arm assembly being independent of the other(s). Unless specifically stated otherwise, none of the inventive concepts set forth in this discussion are limited by the type or number of lift arm assemblies that are coupled to a particular power machine.

The lift arm assembly 230 has a pair of lift arms 234 that are disposed on opposing sides of the frame 210. A first end of each of the lift arms 234 is pivotally coupled to the power machine at joints 216 and a second end 232B of each of the lift arms is positioned forward of the frame 210 when in a lowered position as shown in FIG. 2. Joints 216 are located toward a rear of the loader 200 so that the lift arms extend along the sides of the frame 210. The lift path 237 is defined by the path of travel of the second end 232B of the lift arms 234 as the lift arm assembly 230 is moved between a minimum and maximum height.

Each of the lift arms 234 has a first portion 234A of each lift arm 234 is pivotally coupled to the frame 210 at one of the joints 216 and the second portion 234B extends from its connection to the first portion 234A to the second end 232B of the lift arm assembly 230. The lift arms 234 are each coupled to a cross member 236 that is attached to the first portions 234A. Cross member 236 provides increased structural stability to the lift arm assembly 230. A pair of actuators 238, which on loader 200 are hydraulic cylinders configured to receive pressurized fluid from power system 220, are pivotally coupled to both the frame 210 and the lift arms 234 at pivotable joints 238A and 238B, respectively, on either side of the loader 200. The actuators 238 are sometimes referred to individually and collectively as lift cylinders. Actuation (i.e., extension and retraction) of the actuators 238 cause the lift arm assembly 230 to pivot about joints 216 and thereby be raised and lowered along a fixed path illustrated by arrow 237. Each of a pair of control links 217 are pivotally mounted to the frame 210 and one of the lift arms 232 on either side of the frame 210. The control links 217 help to define the fixed lift path of the lift arm assembly 230.

Some lift arms, most notably lift arms on excavators but also possible on loaders, may have portions that are controllable to pivot with respect to another segment instead of moving in concert (i.e. along a pre-determined path) as is the case in the lift arm assembly 230 shown in FIG. 2. Some power machines have lift arm assemblies with a single lift arm, such as is known in excavators or even some loaders and other power machines. Other power machines can have a plurality of lift arm assemblies, each being independent of the other(s).

An implement interface 270 is provided proximal to a second end 232B of the lift arm assembly 234. The implement interface 270 includes an implement carrier 272 that is capable of accepting and securing a variety of different implements to the lift arm 230. Such implements have a complementary machine interface that is configured to be engaged with the implement carrier 272. The implement carrier 272 is pivotally mounted at the second end 232B of the arm 234. Implement carrier actuators 235 are operably coupled the lift arm assembly 230 and the implement carrier 272 and are operable to rotate the implement carrier with respect to the lift arm assembly. Implement carrier actuators 235 are illustratively hydraulic cylinders and often known as tilt cylinders.

By having an implement carrier capable of being attached to a plurality of different implements, changing from one implement to another can be accomplished with relative ease. For example, machines with implement carriers can provide an actuator between the implement carrier and the lift arm assembly, so that removing or attaching an implement does not involve removing or attaching an actuator from the implement or removing or attaching the implement from the lift arm assembly. The implement carrier 272 provides a mounting structure for easily attaching an implement to the lift arm (or other portion of a power machine) that a lift arm assembly without an implement carrier does not have.

Some power machines can have implements or implement like devices attached to it such as by being pinned to a lift arm with a tilt actuator also coupled directly to the implement or implement type structure. A common example of such an implement that is rotatably pinned to a lift arm is a bucket, with one or more tilt cylinders being attached to a bracket that is fixed directly onto the bucket such as by welding or with fasteners. Such a power machine does not have an implement carrier, but rather has a direct connection between a lift arm and an implement.

The implement interface 270 also includes an implement power source 274 available for connection to an implement on the lift arm assembly 230. The implement power source 274 includes pressurized hydraulic fluid port to which an implement can be removably coupled. The pressurized hydraulic fluid port selectively provides pressurized hydraulic fluid for powering one or more functions or actuators on an implement. The implement power source can also include an electrical power source for powering electrical actuators and/or an electronic controller on an implement. The implement power source 274 also exemplarily includes electrical conduits that are in communication with a data bus on the excavator 200 to allow communication between a controller on an implement and electronic devices on the loader 200.

Frame 210 supports and generally encloses the power system 220 so that the various components of the power system 220 are not visible in FIGS. 2-3. FIG. 4 includes, among other things, a diagram of various components of the power system 220. Power system 220 includes one or more power sources 222 that are capable of generating and/or storing power for use on various machine functions. On power machine 200, the power system 220 includes an internal combustion engine. Other power machines can include electric generators, rechargeable batteries, various other power sources or any combination of power sources that can provide power for given power machine components. The power system 220 also includes a power conversion system 224, which is operably coupled to the power source 222. Power conversion system 224 is, in turn, coupled to one or more actuators 226, which can perform a function on the power machine. Power conversion systems in various power machines can include various components, including mechanical transmissions, hydraulic systems, and the like. The power conversion system 224 of power machine 200 includes a pair of hydrostatic drive pumps 224A and 224B, which are selectively controllable to provide a power signal to drive motors 226A and 226B. The drive motors 226A and 226B in turn are each operably coupled to axles, with drive motor 226A being coupled to axles 228A and 228B and drive motor 226B being coupled to axles 228C and 228D. The axles 228A-D are in turn coupled to tractive elements 219A-D, respectively. The drive pumps 224A and 224B can be mechanically, hydraulic, and/or electrically coupled to operator input devices to receive actuation signals for controlling the drive pumps.

The arrangement of drive pumps, motors, and axles in power machine 200 is but one example of an arrangement of these components. As discussed above, power machine 200 is a skid-steer loader and thus tractive elements on each side of the power machine are controlled together via the output of a single hydraulic pump, either through a single drive motor as in power machine 200 or with individual drive motors. Various other configurations and combinations of hydraulic drive pumps and motors can be employed as may be advantageous.

The power conversion system 224 of power machine 200 also includes a hydraulic implement pump 224C, which is also operably coupled to the power source 222. The hydraulic implement pump 224C is operably coupled to work actuator circuit 238C. Work actuator circuit 238C includes lift cylinders 238 and tilt cylinders 235 as well as control logic to control actuation thereof. The control logic selectively allows, in response to operator inputs, for actuation of the lift cylinders and/or tilt cylinders. In some machines, the work actuator circuit 238C also includes control logic to selectively provide a pressurized hydraulic fluid to an attached implement. The control logic of power machine 200 includes an open center, 3 spool valve in a series arrangement. The spools are arranged to give priority to the lift cylinders, then the tilt cylinders, and then pressurized fluid to an attached implement.

The description of power machine 100 and loader 200 above is provided for illustrative purposes, to provide illustrative environments on which the examples discussed below can be practiced. While the technology discussed can be practiced on a power machine such as is generally described by the power machine 100 shown in the block diagram of FIG. 1 and more particularly on a loader such as track loader 200, unless otherwise noted or recited, the concepts discussed below are not intended to be limited in their application to the environments specifically described above.

FIG. 5 illustrates aspects of a control system 280 that can be used to control certain functionalities of a power machine, including the power machine 200 of FIGS. 2 and 3. The control system 280 includes a controller 282, which can, for example, be configured as a general or special purpose electronic processing device in communication with a memory 284. In some examples, the control system 280 can include one or more controllers. For example, some power machines may include dedicated controllers for engine control, drive control, operator input, display, radio/entertainment, and hub operations, with appropriate communication channels (e.g., buses, which can be physical or wireless) extending among the controllers and between the controllers and other components (e.g., sensors, wireless communication modules, etc.). In some examples, multiple controllers may be combined as modules within a common control device (e.g., as different software or hardware modules for a single controller). In this regard, the one or more controllers can be considered to be configured as dedicated controllers or as being integrated into a larger control device.

To allow delivery of operator input commands, one or more input devices, represented generally by input device(s) 286, are in communication with the controller 282. Operators can generally manipulate the input device(s) 286 to provide user input signals to the controller 282, including according to well-known input and data transmission protocols. In some examples, one or more of the input devices 286 can be configured as a combination input/output device, according to a variety of known configurations.

In some examples, the input device(s) 286 can include a user input interface 287. For example, the user input interface 287 can be configured as a display device, that can receive input from a user via the display itself (e.g., a touchscreen display device) or via one or more input devices such as buttons, switches, and/or a keypad or other suitable devices associated with the display and can provide information to the user based on signals received from the controller 282 or other sources. The use input interface 287 can also be a series of input devices such as described above that can be manipulated by the operator without a corresponding display.

In some examples, multiple input devices can be configured to provide commands, receive signals, or otherwise control operations of the power machine. In the illustrated example, the controller 282 is in also communication with an input device configured as a start mechanism 288, as well as with the power conversion system 224 (see also FIG. 4), the actuators 226 (see also FIG. 4), and the work actuator circuit 238C (see also FIG. 4). Thus arranged, the controller 282 can receive an input from the start mechanism 288 to prompt a commanded startup of the power source 222 (e.g., an internal combustion engine), as well as other inputs to selectively operate devices of the power conversion system 224, the actuators 226, auxiliary systems 289 (e.g., HVAC systems, radios, etc.), or the work actuator circuit 238C, and thereby control a variety of power machine functionality.

According to one example, the start mechanism 288 can be configured as an ignition switch (or power switch), including a switch operated with a physical key, a button, a toggle, etc. In some cases, a start mechanism 288 can be integrated with another one of the input device(s) 286, including the user input interface 287. In some cases, activation of a start mechanism 288 can trigger startup operations generally, as well as startup of a power source (e.g., can also trigger initialization operations for the user input interface 287, or for other subsystems of the control system 280).

Generally, a variety of other configurations are also possible, including configurations in which a control system is in communication with additional or different functional sub-systems of a power machine. Correspondingly, the principles of access and operational control discussed herein can be readily applied with regard to a variety of different power machine functionality or power machine sub-systems. Further, although the controller 282 is illustrated schematically as a single component, other configurations can include multiple controllers, as noted above, that can be distributed about a power machine or elsewhere.

Through appropriate configuration of the control system 280 or other similar control systems, a power machine can be configured so that particular power machine functionality (e.g. full, partial, or zero functionality) may be available during startup processes. Further, as appropriate, additional power machine functionality can be made available once authorization for an operator has been appropriately verified, including via a wireless connection between a mobile device and the power machine to identify the presence of an authorized user and any associated preferences or limitations.

For example, the controller 282 can be configured to implement a temporary startup mode during a startup process for the power machine, under which limited power machine functionality is selectively enabled at one or more of the power source 222 (e.g., via control of the start mechanism 288), hydraulic workgroup systems (e.g., via work actuator circuit 238C of FIG. 4), the power conversion system 224, the actuators 226, the auxiliary systems 289, or other relevant power machine systems. Correspondingly, certain other power machine functionality may not be enabled by the controller 282 (e.g., may be locked out) while the power machine 200 is in the startup mode.

While still operating within a startup mode, the control system 280 can also employ known wireless communication protocols to identify potential wireless connections with one or more mobile devices and to establish wireless connections with the device(s), as appropriate. For example, the availability of certain mobile devices can be identified using Bluetooth or other short-range communication protocols and then a connection can be established accordingly to permit wireless exchange of information (e.g., IMEI or other identifiers for a mobile device). Alternatively, a mobile device can employ known wireless communication protocols to identify the control system 280 and establish wireless connection with the control system. However, only those mobile devices that have been previously associated with the control system 280 (such as by a pairing operation via a Bluetooth protocol) can establish such a wireless connection with the control system.

Once a mobile device has been thus identified, the control system 280 can determine, based on the identification of the mobile device, whether and how power machine functionality should be made available. For example, if a wireless connection indicates that a mobile device is associated with an operation profile that includes particular permissions and operational preferences, the control system 280 can allow operation of the power machine according to those permissions and preferences. In contrast, if a wireless connection is not established with a mobile device, or is established with a mobile device that is not associated with an operation profile, the control system 280 can accordingly continue to permit limited (e.g., no) power machine functionality (e.g., according to predetermined permissions of a startup mode).

In this regard, referring now to FIG. 6 as well as FIG. 5, an example startup process method 300 for accessing functionality of the power machine 200 is presented, as may be generally executable by the controller 282 and the control system 280 (FIG. 5). Although reference is made to the power machine 200 in particular, the methods disclosed herein, including as illustrated in FIG. 6, can generally be implemented with any variety of other power machines.

According to the illustrated example, the method 300 can begin at block 302 by placing the power machine 200 in a startup mode. For example, the control system 280 can initialize the user input interface 287 (see FIG. 5) or provide input to other devices that are operatively connected to a power source (e.g., battery) of the power machine 200. In some examples, an operator can trigger execution of the method 300 by manually actuating the start mechanism 288 (e.g., to a run position) to activate a power source (e.g., start an engine). Correspondingly, upon actuation of the start mechanism 288, power can be applied to one or more computing devices on the power machine 200, including the user input interface 287, in order to allow access to limited power machine functionality at block 304 according to permissions of the startup mode.

As generally noted above, during a startup mode that defines limited power machine functionality, an operator of the power machine 200 may be permitted to have an engine or other main power source activated, or may be permitted operations only as powered by an ancillary power source (e.g., small battery), but also may not be able to command operation of certain actuators (e.g., workgroup actuators) or execute certain operations (e.g., move a lift arm, increase engine speed beyond idle, or travel at faster than a threshold ground speed). According to other examples, however, limited power machine functionality can include zero access to power machine functions. In this regard, for example, certain computerized systems may be initialized, but may not be available for actual control of operation of the power machine, even if a main power source (e.g., engine) has been started. Note that in some cases, the power machine may not have an engine but an electric power source such as a battery pack. On such machines, a battery power management system may prohibit the transmission of electric power to actuators until communication with the mobile device has been established.

In some cases, the user input interface 287 can be powered on during a startup mode such that the operator can manipulate the user input interface 287 in order to control certain functions of the power machine 200, such as one or more devices of the auxiliary systems 289. According to some examples, the limited functionality of the power machine 200 during a startup mode can correspond to limited access for operation of one or more work elements, such as the work actuator circuit 238C, the auxiliary hydraulic system 291, the power conversion system 224, various tractive elements, and so on.

Generally, operation of a power machine in startup mode may correspond to initiated operation of a power machine from an unpowered state (e.g., with the engine not running). In some cases, however, a power machine can be otherwise placed (at block 302) in startup mode. For example, a power machine can sometimes operate in startup mode (e.g., with limited power machine functionality) after an engine has already been started, due to an intervening operator action or other event (e.g., a locking of a touchscreen or other input device).

Continuing, the controller 282 can also be configured to establish a wireless connection to a mobile device 290 (e.g., over Bluetooth or Wi-Fi communication) at block 306. According to some examples, the controller 282 can automatically begin searching for a wireless connection to a mobile device 290 upon receiving power (e.g., after a power machine is placed in the startup mode at block 302), although other sequences are possible, including sequences in which one or more wireless connections can be made before a startup mode begins. According to other examples, a mobile device can sense the presence of the controller 282 and establish (at block 306) a connection to the controller.

Using the established wireless connection with the mobile device 290 from block 306, the controller 282 can then identify what operational profile(s) have been associated with the mobile device 290. In some cases, once a connection is established at block 306, the controller 282 can identify if the mobile device 290 is associated 310 with one or more operation profiles for the power machine 200. For example, the power machine 200 can store (e.g., in the memory 284) one or more operation profiles that correspond to one or more operating modes of the power machine 200 that can correspond to one or more operation environments. Thus, based on an association between a mobile device and one or more operation profiles and an established connection with the mobile device (e.g., from operations at block 306), the controller 282 can provide an operator an opportunity to select from at least two operation profiles to relevantly determine what power machine functionality is authorized for a particular operation environment. If only one operation profile is available, an operator will not need to select an operation profile, it will be selected automatically.

Thus, for example, for a power machine that is currently operating with limited power machine functionality, if the controller 282 establishes a connection with the connected mobile device 290 at block 306 and a corresponding operation profile for the power machine 200 is selected, the controller 282 can sometimes allow, at block 308, access to additional power machine functionality that corresponds to the permissions or settings of the selected operation profile. According to some examples, the allowed additional power machine functionality from operations at block 308 can include operation of tractive elements of the power machine 200 or can include operation of work elements. For example, a user may not be permitted to drive the power machine 200 or to operate a lift arm or implement of a power machine during startup mode, but may be permitted to execute that functionality once a connection with an associated mobile device has been established at block 306, based on permissions with an associated operator profile. According to some examples, for particular operators, the allowed additional power machine functionality of block 308 can include full power machine functionality, with no restrictions to access.

As discussed above, the power machine 200 can store a plurality of operation profiles, and each operator profile can include one or more operational preferences, one or more operating permissions (e.g., lists or qualifications for permitted or blocked functionality), or one or more other settings, any of which may (or may not) be unique to a particular operator. In this regard, for example, an operator profile can include settings for preferences for auxiliary system 289 functions, for operation of the power conversion system 224, auxiliary hydraulic system 291, or work actuator circuit 238C, and so on. In some cases, operational limits for these systems can be set within an operator profile, including limits for vehicle speed, limits for work element operation speeds, geographic limits, and so on. Thus, according to one example, and operator profile for an operator with a particular level of experience can include permissions appropriate for that level of experience, which may include partial or full limits on operating particular work elements.

In some cases, an operation profile can be established by an operator via interaction with the user input interface 287 (see FIG. 5). According to other examples, an operation profile can be established when the power machine is manufactured by loading the pre-defined operation profiles into the controller 282 either before or during the power machine manufacturing process.

Referring now to FIGS. 7-10 as well as FIG. 5, various example user interfaces for the user input interface device 287 are illustrated. FIG. 7 illustrates a user interface 400 for displaying a current mobile device status 402, based on an established connection with a first mobile phone 290 that is associated with a corresponding operator profile. In addition, the user interface 400 also displays potential connections 404 with mobile devices 290, 290′ within detection range of the controller 282. Thus, for example, an operator can be presented with choices to connect with (or disconnect from) a desired mobile device 290, 290′ among the list of potential connections 404. Alternatively (or additionally), as previously described, the controller 282 can sometimes determine a sequence for connections based on proximity, signal strength, or a predetermined priority list.

FIG. 8 illustrates an example user interface 400′ for creating an association 406 between a mobile device 290 that is within detection range of the controller 282, and an operator profile 410 of the power machine 200. Although a variety of approaches are possible, the user interface 400′ can provide a relatively simple process to associate a mobile device with the operator profile 410. For example, after an operator has indicated appropriate authorization to use the power machine 200 (e.g., via a different mobile device, a manual input, etc.) and has identified the operator profile 410 as relevant to the operator (e.g., via an earlier log-in by the operator), the user interface 400′ can automatically (or upon request) provide an option to associate the operator profile 410 with a connected (or available) mobile device. Thus, for example, where the mobile device 290 is already connected to a power machine, an operator may be able to associate the mobile device 290 with the operator profile 410 with relative ease, including by simply selecting a “Create Key” (or similar) icon or button.

According to some examples, to create the association with the mobile device 290, it may be required that the relevant operator profile is not already associated with a mobile device. According to some examples, to create the association with the mobile device 290, it may be required that the mobile device 290 is not previously associated with another operator profile. According to some examples, only select operators (e.g., administrators) may be permitted to associate a particular mobile device with a particular operator profile.

In some cases, removing an association between a mobile device and an operator profile can proceed similarly, but with reverse effect. For example, FIG. 9 illustrates an example user interface 400″ for deleting an association 408 between the mobile device 290 and the operator profile 410 of the power machine 200. Thus, for example, an operator may also be able to remove an association of the mobile device 290 with the operator's profile with relative ease, including by simply selecting a “Delete Key” (or similar) icon or button. According to some examples, the association between the mobile device 290 and the operator profile 410 can be removed regardless of whether the mobile device 290 is currently wirelessly connected to the power machine 200. According to some examples, only select operators (e.g., administrators) may be permitted to remove an association of a particular mobile device with a particular operator profile.

In some cases, an association with a particular operator profile can be easily switched between different mobile devices. For example, FIG. 10 illustrates an example user interface 400′″ for switching an association 412 between the mobile device 290 and an operator profile 410 of the power machine 200 to an association between another mobile device 290′ and the operator profile 410. Thus, for example, an operator may also be able to switch associations between mobile devices and the operator's profile with relative ease, including by simply selecting a “Replace Key” (or similar) icon or button. This can be beneficial, for example, should an operator wish to change mobile devices, or to associate a different one of multiple mobile devices with an operator profile.

In some implementations, devices or systems disclosed herein can be utilized, manufactured, or configured using methods embodying aspects of the disclosed technology. Correspondingly, any description herein of particular features, capabilities, or intended purposes of a device or system is generally intended to include disclosure of a method of using such devices for the intended purposes, of a method of otherwise implementing such capabilities, of a method of manufacturing relevant components of such a device or system (or the device or system as a whole), and of a method of installing or utilizing disclosed (or otherwise known) components to support such purposes or capabilities. Similarly, unless otherwise indicated or limited, discussion herein of any method of manufacturing or using of a particular device or system, including installing the device or system, is intended to inherently include as examples of the disclosure, components or systems with the utilized features and the implemented capabilities of such device or system.

In some implementations, aspects of this disclosure, including computerized implementations of methods according to this disclosure, can be implemented as a system, method, apparatus, or article of manufacture using standard programming or engineering techniques to produce software, firmware, hardware, or any combination thereof to control a processor device or a computer (e.g., a processor device operatively coupled to a memory) to implement aspects detailed herein. Accordingly, some examples can be implemented as a set of instructions, tangibly embodied on a non-transitory computer-readable media, such that a processor device can implement the instructions based upon reading the instructions from the computer-readable media. Some examples can include (or utilize) a device such as an automation device, a special purpose or general purpose computer including various computer hardware, software, firmware, and so on, consistent with the discussion below.

The term “article of manufacture” as used herein is intended to encompass a computer program accessible from any computer-readable device, carrier (e.g., non-transitory signals), or media (e.g., non-transitory media). For example, computer-readable media can include but are not limited to magnetic storage devices (e.g., hard disk, floppy disk, magnetic strips, and so on), optical disks (e.g., compact disk (CD), digital versatile disk (DVD), and so on), smart cards, and flash memory devices (e.g., card, stick, and so on). Additionally, a carrier wave can be employed to carry computer-readable electronic data such as those used in transmitting and receiving electronic mail or in accessing a network such as the Internet or a local area network (LAN). Those skilled in the art will recognize many modifications may be made to these configurations without departing from the scope or spirit of the claimed subject matter.

Certain operations of methods according to some examples, or of systems executing those methods, may be represented schematically in the FIGS. or otherwise discussed herein. Unless otherwise specified or limited, representation in the FIGS. of particular operations in particular spatial order may not necessarily require those operations to be executed in a particular sequence corresponding to the particular spatial order. Correspondingly, certain operations represented in the FIGS., or otherwise disclosed herein, can be executed in different orders than are expressly illustrated or described, as appropriate for particular implementations. Further, in some examples, certain operations can be executed in parallel, including by dedicated parallel processing devices, or separate computing devices configured to interoperate as part of a large system.

As used herein in the context of computer implementation, unless otherwise specified or limited, the terms “component,” “system,” “module,” and the like are intended to encompass part or all of computer-related systems that include hardware, software, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being, a processor device, a process being executed (or executable) by a processor device, an object, an executable, a thread of execution, a computer program, or a computer. By way of illustration, both an application running on a computer and the computer can be a component. One or more components (or system, module, and so on) may reside within a process or thread of execution, may be localized on one computer, may be distributed between two or more computers or other processor devices, or may be included within another component (or system, module, and so on).

Although the present discussion refers to preferred examples, workers skilled in the art will recognize that changes may be made in form and detail without departing from the scope of the discussion.

Claims

1. A control system for a power machine, the control system comprising:

an input device operatively connected to a power source of the power machine;

a control device that is configured to: enable operation of the power source of the power machine based upon receiving a signal from the input device; and after receiving the signal of the input device, restrict operation of one or more power machine functions for the power machine until a wireless connection is established between the control device and a mobile device, the mobile device corresponding to an operator profile for the power machine.

2. The control system of claim 1, wherein the one or more power machine functions for which operation is restricted includes one or more of: operation of tractive elements or operation of work elements.

3. A method of operating a power machine with a user input interface, the method comprising:

upon receiving an initial user input to activate a power source for the power machine, placing the power machine in a startup mode;

based on placing the power machine in the startup mode, providing limited access to power machine functionality according to permissions of the startup mode;

via a controller in communication with the user input interface, searching for one or more mobile devices;

establishing a wireless connection between a mobile device and the power machine to identify an association between the mobile device and an operator profile for the power machine; and

based on identifying the association between the mobile device and the operator profile, allowing access to additional power machine functionality that corresponds to the operator profile.

4. The method of claim 3, wherein the permissions of the startup mode include operation of a power source of the power machine, but not operation of one or more work elements.

5. The method of claim 3, wherein the additional power machine functionality is distinct from operation of the power source and includes one of more of: operation of tractive elements or operation of work elements.

6. The method of claim 5, wherein the additional power machine functionality includes full power machine functionality.

7. The method of claim 3, wherein the mobile device includes one of a mobile phone, a tablet, a laptop, or a personal digital assistant.

8. A power machine comprising:

a power source;

an operator station;

a user input interface within the operator station, including an input device configured to receive input for activation of the power source by an operator in the operator station;

one or more tractive elements configured to move the power machine;

one or more work elements configured to be operated for work operations using power from the power source; and

a control system configured to: activate the power source based upon a signal from the input device responsive to an operator input; and after activating the power source: initially provide limited access to power machine functionality; establish a wireless connection with a mobile device that corresponds to an operator profile; and based upon establishing the wireless connection and after initially providing the limited access to power machine functionality, provide access to one or more additional power machine functions based on one or more settings associated with the operator profile.

9. The power machine of claim 8, wherein the control system is further configured to:

before establishing the wireless connection with the mobile device, identify potential wireless connections with a plurality of mobile devices, including the mobile device; and

prioritize establishing the wireless connection with the mobile device based on one or more of proximity, signal strength, or a predetermined priority list.

10. The power machine of claim 8, wherein the user input interface further includes a display configured to receive an activation code; and

wherein the control system is configured to bypass receipt of the activation code via the display, based on establishing the wireless connection.