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System and method for determining a steering angle for a vehicle and system and method for controlling a vehicle based on same

  • US 8,825,295 B2
  • Filed: 08/16/2010
  • Issued: 09/02/2014
  • Est. Priority Date: 08/16/2010
  • Status: Active Grant
First Claim
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1. A system for determining an angular position of a pair of steerable wheels of a vehicle having a plurality of wheels comprising:

  • a steering angle sensor configured to output sensor angle data representative of a toe angle of the steerable pair of wheels, the steering angle sensor being a relative position sensor;

    a yaw rate sensor configured to output data representative of an angular velocity of the vehicle about a vertical axis of the vehicle;

    a pair of wheel speed sensors, wherein each wheel speed sensor is configured to output data representative of a rotational velocity of a respective one of the plurality of wheels; and

    a controller in electrical communication with each of the pair of wheel speed sensors and the yaw rate sensor, one of the relative position sensor and the controller being configured to determine a neutral position of the relative position sensor such that the neutral position corresponds to a position of the relative position sensor when the vehicle travels along a substantially straight path, and the controller being configured to;

    determine a first steering angle based on data received from the plurality of wheel speed sensors;

    determine a second steering angle based on data received from the yaw rate sensor; and

    determine the angular position of the pair of steerable wheels to be one of the first steering angle and the second steering angle until one of the relative position sensor and the controller determines the neutral position.

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