Abstract: The present invention is intended to provide a technology that can utilize the advantages of both a load sensing control and a regeneration circuit without causing any problem. A regeneration circuit is added to a hydraulic circuit provided with a hydraulic pressure signal line for detecting a hydraulic pressure value of a circuit and controlling a volume of hydraulic fluid to a cylinder 1 with reference to the detected value. A pressure reducing valve 6 that outputs a reduced pressure as an operating signal to a pump 2, and subsequently the controlling means 5 causes the pressure reducing valve 6 to output a pressure reduction command to a pump 2 and thus to reduce a discharge rate from the pump 2, when the regeneration circuit is in a regeneration state.

Abstract: A material handling system includes a composite beam including an upper rail and a lower track connected through a plurality of spaced apart transverse members. A trolley includes an upper set of wheels and a lower set of wheels. The lower set of wheels is received within two parallel channels defined by the lower track. A drive tube is positioned between the upper rail and the lower track such that the upper set of wheels are in frictional engagement with the drive tube. A drive system is configured to rotate the drive tube.

Abstract: An exhaust system is disclosed. The exhaust system may have an emissions control system including a mount and at least one exhaust treatment device secured to the mount. The exhaust system may also have a mounting assembly including a platform and a base frame. The emissions control system may be secured to the platform. The mounting assembly may be configured to position the emissions control system substantially adjacent to a power source. The platform may be movable relative to the base frame between a first position and a second position.

Abstract: A method for manufacturing an engine block, such as for an internal combustion engine, includes a step of removing material from a top deck of the engine block surrounding a cylinder bore to create a first removal area. Material is also removed from the top deck of the engine block surrounding at least one fluid passage to create a second removal area. An insert is positioned within a recessed area defined by the first removal area and the second removal area.

Abstract: A data collection and distribution system associated with a machine comprises an electronic control module located on a machine. The electronic control module is configured to collect operation data associated with the machine. The system also comprises a personal area network (PAN) control module communicatively coupled to the electronic control module. The PAN control module is configured to detect a PAN-compatible cellular communication device proximate the PAN control module. The PAN control module is also configured to transmit the operation data to the PAN-compatible cellular communication device using a PAN connection between the PAN control module and the PAN-compatible cellular device, wherein the PAN-compatible cellular communication device is configured to transmit the operation data to a condition monitoring system via a cellular network.

Abstract: According to one exemplary aspect there is provided a work tool for attachment to a machine, comprising a supporting tool portion. The actuatable tool portion is pivotally connected to the supporting tool portion via a hinge construction. The hinge construction includes a hinge drive having an outgoing, rotatable shaft. The rotatable shaft has a single outgoing end that is configured to carry the actuatable tool portion. By providing the work tool with a hinge construction that includes a hinge drive with an rotatable shaft that carries the actuatable tool portion on a single outgoing end a directly driven hinge construction is obtained that is both compact and reliable. A hinge drive and method of operating a work tool for a machine are also disclosed.

Abstract: A machine includes a frame having a payload portion, an operator cab, and a crane disposed on a base connected to the frame between the payload portion and the operator cab. The machine further includes a headboard assembly connected to the frame and disposed between the base and the payload portion. A stabilizing pin arrangement includes a floating connection arrangement connecting the headboard assembly to the frame. The floating connection arrangement includes at least two resilient elements, each of the two resilient elements being disposed on either side of a member connected to the headboard assembly.

Abstract: The present disclosure provides a method and apparatus for removing debris from an air cleaner of an internal combustion engine. The method includes receiving a flow of air from a source of air flow associated with an internal combustion engine at a first end portion of a conduit and passing the flow of air towards a second end portion of the conduit. The method also includes passing the flow of air into a scavenging conduit of the air cleaner towards an exhaust end of the scavenging conduit and creating a suction pressure at an end of the scavenging conduit connected to the air cleaner. The suction pressure results in a drawing in of the debris from the air cleaner.

Abstract: A method of derating a retarding grid assembly of a machine is provided. The method may determine the temperatures of resistive elements and insulators associated with the retarding grid assembly, generate a trigger if any one of the temperatures of the resistive elements and insulators exceeds a respective temperature threshold, and determine a magnitude of deration to be applied to a drivetrain associated with the machine in response to the trigger. The magnitude of deration may be based at least partially on feedback and feedforward analyses of the temperatures of the resistive elements and insulators. The magnitude of deration may correspond to a reduction in retarding capacity of the drivetrain.

Abstract: An electric drive machine includes an electric drive system including an internal combustion engine and an electrical power generator coupled to the internal combustion engine. An electronic controller is in control communication with the electric drive system and is configured to determine an estimated temperature of a rotor of the electrical power generator at least in part by determining a rotor temperature rise estimation, compare the estimated rotor temperature to a rotor temperature threshold, and initiate an excessive temperature action if the estimated rotor temperature is greater than or equal to the rotor temperature threshold.

Abstract: In a work machine including a hydraulic pump (1), a swing motor (2), and swing relief valves (3a and 3b), the amount of the swing operation (P1) related to the swing motion of the swing motor (2) is detected, and the hydraulic pressure (P2) supplied from the hydraulic pump (1) to the swing motor is also detected. Additionally, the required flow rate (FR) of hydraulic oil required for the swing motor (1) is set based on the amount of the swing operation (P1). In addition, the volume of relief (FE) is estimated from the hydraulic pressure (P2) based on the override characteristics of the swing relief valves (3a and 3b). The discharge flow rate of the hydraulic pump (1) is controlled based on the value obtained by subtracting the volume of relief (FE) from the required flow rate (FR).

Abstract: A method is provided for operating a machine. The method includes receiving data relating to a current state of multiple parameters. The method also includes determining a parameter signature for each parameter of the multiple parameters based on the received data. In addition, the method includes comparing each parameter signature to reference data to determine which operating modes of the machine are indicated by each parameter signature. The method further includes adjusting one or more components of an implement control system according to the operating mode indicated by a threshold number of parameter signatures.

Abstract: A suspension system for a seat assembly of a machine includes an upper support member and a lower support member. A plurality of vertically aligned guide pins interconnect the upper and lower support members, and are telescopically movable to adjust a distance between the upper and lower support members. A plurality of suspension devices are operatively connected to the upper and lower support members for biasing the upper support member away from the lower support member.

Abstract: An after-treatment component detection system may include an exhaust system configured to include an after-treatment component configured to remove one or more constituents of the exhaust gases. The detection system may include an upstream temperature sensor configured to measure temperature upstream from the after-treatment component, a downstream temperature sensor configured to measure temperature downstream from the after-treatment component, and a controller. The controller may be configured to receive signals indicative of upstream temperature measurements from the upstream sensor and signals indicative of downstream temperature measurements from the downstream sensor and determine an upstream rate of temperature change and a downstream rate of temperature change.

Abstract: A performance management system for use a plurality of machines operating at a common worksite is disclosed. The performance management system may have at least one data acquisition module configured to monitor performance of the plurality of machines, and a controller in communication with the at least one data acquisition module. The controller may be configured to collect machine performance data from the at least one data acquisition module, and detect a performance irregularity based on the collected machine performance data. The controller may be further configured to analyze the collected machine performance data, and determine which of a machine condition, an operator condition, and a site condition is the predominant cause of the performance irregularity based on the comparison.

Abstract: A hydraulic circuit is provided having a hydraulic actuator and a flow control valve. The flow control valve has a pressure adjusting element fluidly coupled to the hydraulic actuator and situated to affect a pressure of fluid being directed to the hydraulic actuator. The flow control valve also has an energy directing element operatively coupled to the pressure adjusting element and situated to be driven by the pressure adjusting element when the pressure adjusting element is selectively throttling fluid being directed to the hydraulic actuator.

Abstract: A fluid level gauge for use with an engine is provided. The fluid level gauge may have a blade, a handle having a protrusion, and a swivel rigidly connected to the blade and having a recess to receive the protrusion. The fluid level gauge may also have a retention member configured to inhibit the protrusion from exiting the recess. The swivel can rotate independent of the handle when the fluid level gauge is fully assembled.

Abstract: The present invention provides a door panel that comprises an outer panel and an inner panel joined together at adhering portions and, regardless of whether rib portions are formed on the adhering portions in order to prevent deformation of the adhering portions or for other purpose, can be modified to withstand severe heat by means of formation of large ventilation openings in the adhering portions without significantly impairing the shape or the strength of the door panel.

Abstract: A control system and method operate to store target signals indicative of end of travel positions of components of a machine. The positions and velocities of the components of a machine are determined at least in part based upon signals received from sensors and command signals are generated to control movement of the components based upon input from an operator, proximate to the end of travel positions and the velocities of the components. Command signals are transmitted to control movement of the components. Multiple end of travel positions may also be defined.

Abstract: A system for detecting pitch of a machine caused by operation of a machine implement is provided. The system may include an inclination sensor for sensing inclination of the machine and producing inclination data representing inclination of the machine over time. An acceleration sensor for sensing acceleration of the machine and producing acceleration data representing acceleration of the machine over time can be provided. A controller in communication with the inclination and acceleration sensors respectively receives the inclination and acceleration data. The controller can be configured to process the inclination data so as to detect a sudden inclination change and to process the acceleration data so as to detect a sudden acceleration change. The controller can be further configured to determine a machine pitch condition upon concurrently detecting a sudden inclination change and a sudden acceleration change.