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Motor controller for a hydraulic pump with electrical regeneration

  • US 6,652,239 B2
  • Filed: 08/29/2002
  • Issued: 11/25/2003
  • Est. Priority Date: 03/29/2001
  • Status: Expired due to Fees
First Claim
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1. A pump system comprising:

  • a pump for pumping a fluid;

    a drive motor directly coupled to said pump; and

    a motor control coupled to said pump for controlling said drive motor;

    said motor control employing a motion control algorithm to control a hydraulic output at an input shaft of the pump, wherein the algorithm includes a subroutine for calculating a magnitude of a pump shaft torque output and translating the torque output into a pressure delivered signal.

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