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Vehicle steering-based speed control system and method

  • US 9,150,104 B2
  • Filed: 10/30/2012
  • Issued: 10/06/2015
  • Est. Priority Date: 10/30/2012
  • Status: Active Grant
First Claim
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1. A control system for a vehicle having a propulsion system supplying torque to driven wheels, and an electronic control unit (ECU), the control system comprising:

  • a speed sensor generating a vehicle speed signal;

    a wheel angle sensor generating a wheel angle signal which represents an angle of the steered wheels; and

    a vehicle position sensor generating a vehicle position signal, the ECU determining an expected yaw-rate as a function of the wheel angle signal and the vehicle speed signal, the ECU determining a yaw-rate error as a function of a difference between the vehicle position signal and the expected yaw-rate, determining a speed limit as a function of the yaw-rate error, and in response to the speed limit, and controlling the propulsion system so that the vehicle speed is not greater than the speed limit.

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