INTEGRATED COMPLIANCE SERVOVALVE  Inventor: Stephen J. Tranovich, Valencia, Calif.  Assignee: HR Textron Inc., Valencia, Calif.
 Appl. No.: 543,567
 Filed: Oct. 16, 1995
Related U.S. Application Data
 Division of Ser. No. 308,713, Sep. 19, 1994, Pat. No. 5,500,580.
 Int. CI.6 F15B 9/09
 U.S. CI 318/566; 318/645; 251/129.11;
 Field of Search 318/560, 561,
318/566, 568.11, 568.16, 568.17, 611, 621, 622, 623, 645, 652; 251/129.01, 129.11, 129.12; 446/268, 330
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Primary Examiner—Bentsu Ro
Attorney, Agent, or Firm—Robbins, Berliner & Carson, LLP
An integrated compliance electrohydraulic servovalve system connected to a load such as a simulated living being to provide more realistic movement thereto. The system includes a pressure transducer for sensing the pressure appearing at the output of the electrohydraulic servovalve and which is applied to an actuator connected to the load. The pressure as sensed is developed into a corresponding electrical signal which is used as a feed back signal to the drive motor of the electrohydraulic servovalve. The actuator position signal is also provided and is summed with the position command input signal to provide the command signal which is also summed with the pressure signal prior to application to the drive motor. The utilization of the pressure feed back signal provides compliance to the over all system resulting in a realistic movement of the simulated living being.
8 Claims, 5 Drawing Sheets