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Control Device for an Electric Actuator

  • US 20130073111A1
  • Filed: 05/11/2011
  • Published: 03/21/2013
  • Est. Priority Date: 05/20/2010
  • Status: Active Grant
First Claim
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1. A control device of an electric actuator that is adapted to perform a forward-reverse movement, the control device comprising:

  • a control unit that is adapted to be operated in a forward direction or a reverse direction in accordance with the forward-reverse movement of the electric actuator;

    a pilot circuit that is connected with the control unit, the pilot circuit generating a forward pilot pressure or a reverse pilot pressure in accordance with the forward operation or the reverse operation of the control unit;

    a differential pressure acquiring unit that acquires a differential pressure between a pilot pressure corresponding to a operation direction of the control unit and a pilot pressure in a direction opposite to the operation direction;

    a control command generator that generates a control command to the electric actuator based on the differential pressure acquired by the differential pressure acquiring unit; and

    a drive controller that controls a drive of the electric actuator based on the control command generated by the control command generator.

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