Abstract: A speed control method for a work vehicle includes controlling a first hydraulic pump to supply hydraulic fluid to a first hydraulic motor to drive a first traveling device provided on a vehicle body of the work vehicle and detecting a first differential pressure of the first hydraulic motor. The method includes regulating at least one of a first pump pilot pressure applied to a first pump pilot port of the first hydraulic pump and a rotational speed of an engine to drive the first hydraulic pump such that a vehicle speed is controlled to maintain a predetermined target speed in response to an absolute value of the first differential pressure.

Abstract: An electric work vehicle, which is configured to be driven with use of motive power of an electric motor configured to be supplied with electric power from a rechargeable battery, comprises: a drive controller configured to control driving of the electric work vehicle and including a start determination module configured to determine whether or not to permit the electric motor to be started; a display unit configured to display vehicle state information regarding the electric work vehicle and including a start permission indicator configured to indicate that the electric motor is permitted to be started; and a notification controller configured to control display in the display unit.

Abstract: Some embodiments may include a working machine to perform one or more work tasks in a work area, the working machine comprising: a machine localization system to localize the working machine based on perception sensor observations indicative of data embedded on one or more markers placed in the work area or proximate to the work area, wherein the working machine obtains localization data responsive to reading one or more machine-readable optical images on the one or more markers, respectively, wherein the working machine determines, using the obtained localization data, an absolute position of the working machine or one or more absolute positons of the one or more markers, respectively; and wherein the working machine performs the one or more work tasks based on the determined absolution position(s). Other embodiments may be disclosed and/or claimed.

Abstract: A speed control method for a work vehicle, includes driving an engine to rotate a first hydraulic pump provided in the work vehicle. Hydraulic fluid from the first hydraulic pump is supplied to a first hydraulic motor to rotate the first hydraulic motor to drive a first traveling device provided in a vehicle body of the work vehicle. A rotational speed of the first hydraulic motor is detected. Feedback control with respect to the engine and a control valve configured to control a pilot pressure of the first hydraulic pump is performed. The feedback control being performed to reduce a speed difference between the rotational speed detected and a target rotational speed of the first hydraulic motor corresponding to a target vehicle speed. A feedback gain of the feedback control is set based on a first coefficient which becomes larger as the target rotational speed becomes lower.

Abstract: Some embodiments may include a touchscreen or other user input interface to select part of a displayed map and one or more processors coupled to the touchscreen or other user input interface. The one or more processors may be configured to setup an autonomous operating zone for a working machine based on a user selection from a displayed map. The working machine may monitor its current location with respect to the autonomous operation zone, and may de-actuate at least one of its actuator(s) or send a new actuation signal to its actuator(s) to change an operation of at least one motorized device of the working machine. Other embodiments may be disclosed and/or claimed.

Abstract: A working machine includes a prime mover, a traveling pump to be driven by the prime mover to output operation fluid, a traveling motor to be driven by the operation fluid outputted from the traveling pump and to change a motor speed between a first speed and a second speed higher than the first speed, a machine body on which the prime mover, the traveling pump, and the traveling motor are arranged, a traveling switching valve to be switched between a first state allowing the traveling motor to rotate at the first speed and a second state allowing the traveling motor to rotate at the second speed, and a controller to reduce a revolving speed of the prime mover based on a traveling condition of the machine body in switching the traveling switching valve between an accelerating state to switch the traveling switching valve from the first state to the second state and a decelerating state to switch the traveling switching valve from the second state to the first state.

Abstract: A hydraulic system for a working machine includes: a first hydraulic pump; a first hydraulic device; a hydraulic fluid tank; a first discharge fluid passage to allow hydraulic fluid discharged from the first hydraulic device to flow into the tank; a second hydraulic pump to suck fluid from the tank through a suction fluid passage; a second hydraulic device in which difference between flow rate of fluid from the second hydraulic pump device and that of discharged fluid changes according to actuation; a second discharge fluid passage connected to a suction port of the first hydraulic pump and allowing fluid discharged from the second hydraulic device to flow into the first hydraulic pump; a connecting fluid passage branching from the second discharge fluid passage and connected to the suction fluid passage between the tank and the second hydraulic pump; a supplier to supply fluid to the second discharge fluid passage.

Abstract: A working machine includes a prime mover, a rotation-speed operation actuator, a rotation detector, a hydraulic pump, a hydraulic unit, an operation valve capable of changing a pilot pressure of a pilot fluid supplied from the hydraulic pump to the hydraulic unit in accordance with an operation of an operation member, an actuation valve operating in accordance with a control signal and capable of changing a primary pressure as the pilot pressure of the pilot fluid supplied from the hydraulic pump to the operation valve, and a controller that outputs the control signal based on a difference between target and actual rotation speeds to the actuation valve to control an opening thereof. The controller has a mode including calculating the control signal based on the difference, correcting the calculated control signal, and increasing or decreasing a target primary pressure value set in accordance with the control signal.

Abstract: The present invention is provided to more reliably keep a work vehicle from coming into contact with an obstacle during automated driving. The work vehicle includes an electronic control system for automated driving that automatically drives the vehicle body. The electronic control system includes an obstacle detection module configured to detect presence or absence of an obstacle, and a contact avoidance control unit configured to perform, upon the obstacle detection module detecting an obstacle, contact avoidance control to keep the vehicle body from coming into contact with the obstacle. The obstacle detection module includes a plurality of obstacle searchers that are distributed on the front end portion and the right and left end portions of the vehicle body such that the front side and the right and left lateral sides of the vehicle body are search-target areas.

Abstract: A work vehicle includes a primary pressure control valve configured to control a pilot primary pressure of pilot oil. A secondary pressure control valve is configured to control a pilot secondary pressure of the pilot oil. Control circuitry is configured to control a rotation speed of an engine according to a target rotation speed. The control circuitry is configured to control the primary pressure control valve and the secondary pressure control valve based on a first target value of the pilot primary pressure and a second target value of the pilot secondary pressure. The control circuitry is configured to reduce the first target value and the second target value such that the second target value is higher than the first target value when the rotation speed of the engine detected by a rotation speed sensor becomes lower than the target rotation speed by a predetermined speed difference or more.

Abstract: Some embodiments may include at least one sensor to collect at least a portion of data driving a perception system of a working machine or driving autonomously or semi-autonomously control of actuators of the working machine; a housing defining an environmentally isolated cavity containing the at least one sensor, the housing comprising: a signal-permeable material having an interior surface and an exterior surface, the interior surface defining part of the environmentally isolated cavity; and a body to passively divert water and/or debris away from the exterior surface of the signal-permeable material, at least part the exterior surface of the signal-permeable material inset with respect to a part of the body; and one or more devices to actively generate a barrier over part of the exterior surface of the signal-permeable material, wherein the actively generated barrier repeals particulate from at least part of the exterior surface of the signal-permeable material.

Abstract: Some embodiments may include a multi-product management system including a modular container for re-supplying partially or fully automated agricultural operations. The modular container may include a liquid-holding portion, a granular solid-holding portion, and, optionally, an add-on portion. In some embodiments, the liquid-holding portion may be formed of a plurality of liquid-holding portions. Other embodiments may be disclosed and/or claimed.

Abstract: A charging system comprises: a first battery mountable in an electric work vehicle; a second battery mountable in an electric automobile; and a converter capable of conductively connecting to the first battery and the second battery, and also capable of converting first electric power from the second battery to second electric power receivable by the first battery and transmitting the second electric power to the first battery.

Abstract: A monitoring system for a working machine includes: a position detector to determine a position of a working machine based on radio waves from positioning satellite(s); an area setter to set work area information indicating whether work area(s) is/are in a shielded environment or an unshielded environment, the work area(s) being area(s) where work is to be done by the working machine, the shielded environment being an environment in which the radio waves are likely to be blocked, the unshielded environment being an environment in which the radio waves are unlikely to be blocked; and a monitor to evaluate a state of position determination by the position detector based on a result of the position determination by the position detector, and provide a notification if there is a predetermined change in the state of the position determination compared to a state of position determination corresponding to the work area information.

Abstract: A working machine rental system includes: a rental setter to make one or more settings for use in renting out a working machine configured to perform a special action, the one or more settings including a selection to use or not use the special action; and a fee calculator to: calculate a rental fee for the working machine based on the one or more settings made by the rental setter; and change the rental fee for the working machine if the special action is actually used or actually not used differently from the selection to use or not use the special action included in the one or more settings made by the rental setter.

Abstract: A working vehicle includes a vehicle body, an obstacle detector to detect an obstacle in a vicinity of the vehicle body, at least one lamp to be lighted on a peripheral portion of the vehicle body, and an attachment bracket attached to the vehicle body. The attachment bracket includes an attachment body including a detector-attaching portion to which the obstacle detector is attached, and at least one lamp-attaching portion to which the at least one lamp is attached.

Abstract: A slip determination system is provided that is capable of providing appropriate control information to a traveling vehicle when the traveling vehicle has proceeded to an area where a slip is likely to occur during automatic travel.

Abstract: A control system to control a work machine and a traveling vehicle traveling with the work machine, includes a first communication device and a second communication device each of which controls operation of the traveling vehicle and at least one of which includes an authenticator to authenticate the work machine by communicating with a third communication device to control operation of the work machine, and a notifier to notify the other one of the first communication device and the second communication device that the authenticator succeeded in authentication, the first communication device and the second communication device each being prohibited, unless the authenticator succeeds in authentication, from at least controlling operation of the traveling vehicle in accordance with information sent from the third communication device.

Abstract: A hydraulic system for a working machine includes a hydraulic pump to output a hydraulic fluid, an operation device operable to supply a pilot fluid in accordance with an amount by which the operation device is operated, a hydraulic actuator to be operated by the hydraulic fluid, a pilot fluid passage connected to the operation device, a first control valve connected to the pilot fluid passage and to be operated by the pilot fluid to control a flow of the hydraulic fluid, a second control valve to be operated by the pilot fluid to control a flow of the hydraulic fluid, a proportional valve to change a pressure of the pilot fluid to operate the second control valve, a pressure detector provided in the pilot fluid passage to detect a pressure in the pilot fluid passage, and a controller to control the proportional valve based on the pressure.