MAGNETORHEOLOGICAL FLUID JOYSTICS SYSTEMS FOR WORKING VEHICLES REDUCTING UNSUCCESSFUL JOYSTICS

摘要

In Ausführungsformen beinhaltet ein magnetorheologisches Fluid- (MRF) Joysticksystem für ein Arbeitsfahrzeug eine Joystickvorrichtung, einen MRF-Joystick-Widerstandsmechanismus und eine Steuerungsarchitektur. The joystick device, in turn, includes a base housing, a joystick that is mounted movably on the base housing, and a joystick position sensor that is configured to monitor the movement of the joystick relative to the base housing.The MRF joystick resistance mechanism is controllable,to vary a first joystick stiffness resistance movement relative to the base building in at least one degree of freedom.The control architecture is configured to: (i) identify when unintended joystick movement conditions occur during the operation of the working vehicle;and (ii) if unintentional joystick movement conditions are detected, indicate the MRF Joystick resistance mechanism, increase the first joystick stiffness in a way that reduces the susceptibility of the joystick device to unintentional joystick movements.