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Hill hold for an electric vehicle

  • US 7,926,889 B2
  • Filed: 10/29/2007
  • Issued: 04/19/2011
  • Est. Priority Date: 10/29/2007
  • Status: Active Grant
First Claim
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1. A system for controlling dynamic braking of an electric utility vehicle, comprising:

  • a brake pedal position sensor that generates a brake position signal corresponding to a position of a brake pedal;

    an accelerator position sensor that generates an accelerator signal corresponding to a position of an accelerator pedal; and

    a controller that receives the brake position signal and the accelerator signal and transmits a motor control signal to a motor based on the brake position signal and the accelerator pedal signal, and the controller stores a value indicative of an amount of at least one of current, voltage, and power to maintain electric utility vehicle in a stopped state on the hill after the park brake function is disabled or disengaged when the electric utility vehicle achieves a first predetermined speed, and the controller generates the motor control signal in accordance with the stored value when the accelerator signal indicates a command to increase the speed of the electric utility vehicle above a second predetermined speed.

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