In embodiments, a work vehicle magnetorheological fluid (MRF) joystick system includes a joystick device. The joystick device includes, in turn, a base housing and a joystick, which is rotatable relative to the base housing and which is biased toward a joystick return position. An MRF joystick resistance mechanism is controllable to vary an MRF resistance force impeding movement of the joystick relative to the base housing, while a controller architecture is coupled to the MRF joystick resistance mechanism. The controller configured to: (i) selectively enable an operator adjustment of the joystick return position by a work vehicle operator; and (ii) when enabling the operator adjustment of the joystick return position, command the MRF joystick resistance mechanism to maintain the MRF resistance force at a predetermined level until the operator adjustment of the joystick return position is terminated.

In embodiments, a work vehicle magnetorheological fluid (MRF) joystick system includes a joystick device, an MRF joystick resistance mechanism, a controller architecture, and an implement tracking data source configured to track movement of the implement during operation of the work vehicle. The joystick device includes, in turn, a base housing, a joystick, and a joystick position sensor. The MRF joystick resistance mechanism is controllable to vary an MRF resistance force impeding joystick movement relative to the base housing. The controller architecture is configured to: (i) track movement of the implement relative to a virtual boundary utilizing data provided by the implement tracking data source; and (ii) command the MRF joystick resistance mechanism to vary the MRF resistance force based, at least in part, on implement movement relative to the virtual boundary.

A vehicle display device according to an embodiment of the disclosure includes a display that displays, as an image, functions for various pieces of vehicle operation information, a knob that is electrically interlocked with the display and selectively operates a corresponding function of the display according to left-right movement thereof, a guide rail that provides a movement path of the knob and divides a plurality of functional areas interlocked with the functions displayed on the display, and a guide part in which magnets having different polarities are alternately arranged in a lengthwise direction of the guide rail to automatically guide a location of the knob.

A control apparatus for actuating hydraulic valve systems includes an actuation section including an oscillating control element and a plurality of control rods provided with a pusher capable of interacting with the control element so as to translate the control rods in a longitudinal direction, a sensor section including a plurality of sensor elements for detecting a movement in a longitudinal direction of said control rods, and an auxiliary section capable of generating a force opposing the motion of the control rods.

Embodiments of a work vehicle magnetorheological fluid (MRF) joystick system include a joystick device, an MRF joystick resistance mechanism, a controller architecture, and a work vehicle sensor configured to provide sensor data indicative of an operational parameter pertaining to work vehicle. The MRF joystick resistance mechanism is controllable to vary an MRF resistance force resisting movement of a joystick included in the joystick device relative to a base housing thereof. The controller architecture is configured to: (i) monitor for variations in the operational parameter utilizing the sensor data; and (ii) provide tactile feedback through the joystick device indicative of the operational parameter by selectively commanding the MRF joystick resistance mechanism to adjust the MRF resistance force impeding joystick movement based, at least in part, on variations in the operational parameter.

In embodiments, a work vehicle magnetorheological fluid (MRF) joystick system includes a joystick device, an MRF joystick resistance mechanism, a controller architecture, and an implement tracking data source configured to track movement of the implement during operation of the work vehicle. The joystick device includes, in turn, a base housing, a joystick, and a joystick position sensor. The MRF joystick resistance mechanism is controllable to vary an MRF resistance force impeding joystick movement relative to the base housing. The controller architecture is configured to: (i) track movement of the implement relative to a virtual boundary utilizing data provided by the implement tracking data source; and (ii) command the MRF joystick resistance mechanism to vary the MRF resistance force based, at least in part, on implement movement relative to the virtual boundary.

In embodiments, a work vehicle magnetorheological fluid (MRF) joystick system includes a joystick device. The joystick device includes, in turn, a base housing and a joystick, which is rotatable relative to the base housing and which is biased toward a joystick return position. An MRF joystick resistance mechanism is controllable to vary an MRF resistance force impeding movement of the joystick relative to the base housing, while a controller architecture is coupled to the MRF joystick resistance mechanism. The controller configured to: (i) selectively enable an operator adjustment of the joystick return position by a work vehicle operator; and (ii) when enabling the operator adjustment of the joystick return position, command the MRF joystick resistance mechanism to maintain the MRF resistance force at a predetermined level until the operator adjustment of the joystick return position is terminated.

Embodiments of a work vehicle magnetorheological fluid (MRF) joystick system include a joystick device having a base housing, a joystick movably mounted to the base housing, and a joystick position sensor configured to monitor joystick movement. An MRF joystick resistance mechanism is controllable to vary a joystick stiffness resisting movement of the joystick relative to the base housing, while a controller architecture is coupled to the joystick position sensor and to the MRF joystick resistance mechanism. The controller architecture is configured to: (i) selectively place the work vehicle MRF joystick system in a modified joystick stiffness mode during operation of the work vehicle; and (ii) when the work vehicle MRF joystick system is placed in the modified joystick stiffness mode, command the MRF joystick resistance mechanism to vary the joystick stiffness based, at least in part, on the movement of the joystick relative to the base housing.

A switch operation mechanism includes: a knob configured to be rotatable about a first rotation axis; a rotor configured to be rotatable about a second rotation axis; a first transmission mechanism configured to transmit rotation of the knob to the rotor and including a slide mechanism configured to allow displacement of the knob in a first direction intersecting with the second rotation axis; and a second transmission mechanism configured to convert the displacement of the knob in the first direction into an operation of a switch.

A rotary operating device includes an operation part that is rotatable according to an operation by an operator, a rotation angle sensor that detects a rotation angle of the operation part, a torque applier that applies application torque to the operation part along a rotation direction of the operation part, a frictional force applier that applies a frictional force to the operation part, and a processor programmed to change the application torque and the frictional force according to the rotation angle.