METHOD AND APPARATUS FOR PROVIDING PASSIVE FLUID FORCE FEEDBACK

摘要

A method and apparatus for interfacing the motion of an object (18) with a digital processing system (250) includes a sensor (14, 110) for detecting movement of the object (18) along a degree of freedom. A passive pneumatic or hydraulic damper (12, 108) is coupled to the object (18) to provide a damping resistance to the object (18) along the degree of freedom and resist a movement of the object (18). The damping resistance is provided by regulating the control of a fluid with a digital computing apparatus (52), thus providing a low-cost, low-power force-feedback interface that is safe for the user. The damper (12, 108) and sensor (14, 110) provide an electromechanical interface (10) between the object (18) and the electrical system. A gimbal or other interface mechanism can be coupled between the damper (12, 108) and the object (18). The interface is well suited for simulations or video games in which an object such as a joystick is moved and manipulated by the user.