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Vehicle drive control apparatus and method

  • US 20060276289A1
  • Filed: 06/02/2006
  • Published: 12/07/2006
  • Est. Priority Date: 06/03/2005
  • Status: Active Grant
First Claim
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1. A vehicle drive control apparatus for a wheeled vehicle including a first motor generator, and a second motor generator, the vehicle drive control apparatus comprising:

  • a planetary gear set including a first rotating element adapted to be drivingly connected to the first motor generator, a second rotating element adapted to be drivingly connected to the second motor generator, and a third rotating element adapted to be drivingly connected to a drive wheel of the vehicle;

    a rotation control mechanism adapted selectively to restrict rotation of one of the first and second rotating elements of the planetary gear set to establish a fixed speed ratio mode, and to release the one of the first and second rotating elements to establish a variable speed ratio mode;

    a wheel slip detector configured to detect a slip state of the drive wheel with respect to a road surface; and

    a control unit configured to control each operating state of the rotation control mechanism, the first motor generator, and the second motor generator, the control unit being configured to establish the variable speed ratio mode when the slip state of the drive wheel is detected in the fixed speed ratio mode.

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