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Hydraulic control apparatus for vehicle and method thereof

  • US 20040063539A1
  • Filed: 09/03/2003
  • Published: 04/01/2004
  • Est. Priority Date: 09/10/2002
  • Status: Active Grant
First Claim
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1. A hydraulic control apparatus for a vehicle, comprising:

  • an electric oil pump;

    a pump control portion which controls the electric oil pump;

    a hydraulic circuit portion which supplies a hydraulic pressure from the electric oil pump to an actuator of a transaxle of the vehicle;

    a hydraulic circuit control portion which outputs a control signal to the hydraulic circuit portion; and

    an oil pump rotation control portion which is provided in the pump control portion and which controls a rotational state of the electric oil pump according to a change in a control status of the hydraulic circuit control portion.

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