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Braking force controller for electric vehicle

  • US 5,654,887 A
  • Filed: 10/07/1994
  • Issued: 08/05/1997
  • Est. Priority Date: 10/08/1993
  • Status: Expired due to Term
First Claim
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1. A braking force controller for an electric vehicle having a motor for driving wheels and a motor controller for controlling power to be supplied to the motor as well as a regenerative braking force generated by the motor, comprising:

  • first detection means for detecting a sudden braking operation;

    second detection means for detecting a regenerative energy produced by the motor; and

    central control means for providing the motor controller with a signal based on said detected regenerative energy to control the regenerative braking force generated by the motor so that a near maximum road surface frictional coefficient is achieved only by maintaining the detected regenerative energy at around a maximum value during the sudden braking operation detected by the first detection means.

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