A work vehicle includes a hydraulic actuator, a hydraulic pump, an operation member, a control valve, an angular velocity corresponding value sensing unit, a notification component, and a controller. The actuator changes a steering angle based on a supplied fluid. The pump supplies fluid to the actuator. The operation member is operated by an operator when the steering angle is changed. The valve controls flow of fluid supplied from the pump to the actuator based on an amount the operation member is operated. The sensing unit senses a corresponding value corresponding to a steering angular velocity changed based on the flow of fluid. The notification component notifies that the corresponding value has reached a threshold value preset based on an upper limit of the steering angular velocity. The controller causes the notification component to perform a notification when it is detected that the corresponding value has reached the threshold value.

A work vehicle includes a hydraulic actuator, a hydraulic pump, an operation member, a control valve, an angular velocity corresponding value sensing unit, a notification component, and a controller. The actuator changes a steering angle based on a supplied fluid. The pump supplies fluid to the actuator. The operation member is operated by an operator when the steering angle is changed. The valve controls flow of fluid supplied from the pump to the actuator based on an amount the operation member is operated. The sensing unit senses a corresponding value corresponding to a steering angular velocity changed based on the flow of fluid. The notification component notifies that the corresponding value has reached a threshold value preset based on an upper limit of the steering angular velocity. The controller causes the notification component to perform a notification when it is detected that the corresponding value has reached the threshold value.

In one embodiment, a steering system for an agricultural implement system includes a first actuating cylinder configured to rotate a first track relative to an implement frame where the first actuating cylinder is connected to a first frame of the first track, and a second actuating cylinder configured to rotate a second track relative to the implement frame where the second actuating cylinder is connected to a second frame of the second track. The steering system also includes a first fluid control conduit extending to a cap end of the first actuating cylinder, a second fluid control conduit extending between a rod end of the first actuating cylinder and a rod end of the second actuating cylinder, a third fluid control conduit extending to a cap end of the second actuating cylinder, and a steering control valve in fluid communication with the first and third fluid control conduits.

In one embodiment, a steering system for an agricultural implement system includes a first actuating cylinder configured to rotate a first track relative to an implement frame where the first actuating cylinder is connected to a first frame of the first track, and a second actuating cylinder configured to rotate a second track relative to the implement frame where the second actuating cylinder is connected to a second frame of the second track. The steering system also includes a first fluid control conduit extending to a cap end of the first actuating cylinder, a second fluid control conduit extending between a rod end of the first actuating cylinder and a rod end of the second actuating cylinder, a third fluid control conduit extending to a cap end of the second actuating cylinder, and a steering control valve in fluid communication with the first and third fluid control conduits.

A work vehicle includes a hydraulic actuator that changes an actual steering angle, an actual steering angle detecting part, an operating unit that performs a steering operation, a position adjusting control part that controls the position adjusting part based on the actual steering angle, and a steering control part that controls the hydraulic actuator. The operating unit includes a support part, a rotating part supported rotatably by the support part, an operating part supported rotatably by the support part or the rotating part, a biasing part that biases the operating part to a predetermined position with respect to the rotating part, and a position adjusting part that adjusts a rotation angle of the rotating part with respect to the support part. The biasing par may produce various counterforces and may increase or reduce an increasing rate of a counterforce with respect to the relative angle.

A work vehicle includes a hydraulic actuator that changes an actual steering angle, an actual steering angle detecting part, an operating unit that performs a steering operation, a position adjusting control part that controls the position adjusting part based on the actual steering angle, and a steering control part that controls the hydraulic actuator. The operating unit includes a support part, a rotating part supported rotatably by the support part, an operating part supported rotatably by the support part or the rotating part, a biasing part that biases the operating part to a predetermined position with respect to the rotating part, and a position adjusting part that adjusts a rotation angle of the rotating part with respect to the support part. The biasing par may produce various counterforces and may increase or reduce an increasing rate of a counterforce with respect to the relative angle.

A work vehicle includes a hydraulic actuator, a control valve, a pressure sensing unit, a force imparting component, and a controller. The hydraulic actuator varies a steering angle. The control valve controls flow of fluid supplied to the hydraulic actuator. The operation member is configured to be operated by an operator and to control the control valve when varying the steering angle. The pressure sensing unit senses a pressure produced by the hydraulic actuator. The force imparting component imparts an assisting force or a counterforce to operation of the operation member. The controller controls the force imparting component so as to generate resistance to operation of the operation member based on a pressure value sensed by the pressure sensing unit.

A work vehicle includes a hydraulic actuator, a control valve, a pressure sensing unit, a force imparting component, and a controller. The hydraulic actuator varies a steering angle. The control valve controls flow of fluid supplied to the hydraulic actuator. The operation member is configured to be operated by an operator and to control the control valve when varying the steering angle. The pressure sensing unit senses a pressure produced by the hydraulic actuator. The force imparting component imparts an assisting force or a counterforce to operation of the operation member. The controller controls the force imparting component so as to generate resistance to operation of the operation member based on a pressure value sensed by the pressure sensing unit.

A work vehicle includes a hydraulic actuator that changes an actual steering angle, an actual steering angle detecting part, an operating unit that performs a steering operation, a position adjusting control part that controls the position adjusting part based on the actual steering angle, and a steering control part that controls the hydraulic actuator. The operating unit includes a support part, a rotating part supported rotatably by the support part, an operating part supported rotatably by the support part or the rotating part, a biasing part that biases the operating part to a predetermined position with respect to the rotating part, and a position adjusting part that adjusts a rotation angle of the rotating part with respect to the support part. The biasing part may produce various counterforces and may increase or reduce an increasing rate of a counterforce with respect to the relative angle.

A work vehicle includes a hydraulic actuator that changes an actual steering angle, an actual steering angle detecting part, an operating unit that performs a steering operation, a position adjusting control part that controls the position adjusting part based on the actual steering angle, and a steering control part that controls the hydraulic actuator. The operating unit includes a support part, a rotating part supported rotatably by the support part, an operating part supported rotatably by the support part or the rotating part, a biasing part that biases the operating part to a predetermined position with respect to the rotating part, and a position adjusting part that adjusts a rotation angle of the rotating part with respect to the support part. The biasing part may produce various counterforces and may increase or reduce an increasing rate of a counterforce with respect to the relative angle.