| 摘要 |
PURPOSE:To set various input/output characteristics only with the resistance value changed by providing a resistance application means giving a required quantity of resistance to the relative displacement of an input shaft or an output shaft and a valve body between them. CONSTITUTION:A solenoid 24 is provided between a valve body 3 and an input shaft 11 as a resistance application means giving a required quantity of resistance to the relative displacement of the input shaft 11 and valve body 3. The energizing current of the solenoid 24 is controlled by a control unit 25, and the said resistance is changed by this energizing current. That is, the control unit calculates its output via the pressure detection signal of a variable pressure chamber 6 from a pressure detector 29. At the same time, the control unit 25 calculates its output in response to the input based on the input quantity from a load detector 28 and the predetermined input/output characteristics, and it controls the energizing current of the solenoid 24 so that the calculated output coincides with the calculated output from the said detector 29. |
