An articulated work vehicle with linked front and rear frames includes a joystick lever, a hydraulic actuator, a control valve, a force imparting component, a joystick displacement sensor, a steering angle sensor, and a controller. The joystick lever is operated to allow a target steering angle to be set. The hydraulic actuator is driven hydraulically to change an actual steering angle. The control valve controls flow of fluid supplied to the hydraulic actuator to eliminate deviation between the target and actual steering angles. The force imparting component imparts an assist force or a counterforce to the operation of the joystick lever. The controller controls the force imparting component so that a counterforce is imparted to the operation of the joystick lever when the joystick lever has been operated in an opposite direction from a rotation direction of the front frame based on detections of the sensors.
Work vehicle and method for controlling work vehicle
2019-12-31
Patent
Electronic Resource
English