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Roll over stability control for an automotive vehicle

  • US 6,338,012 B2
  • Filed: 01/16/2001
  • Issued: 01/08/2002
  • Est. Priority Date: 12/21/1999
  • Status: Expired due to Term
First Claim
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1. A stability control system for an automotive vehicle comprising:

  • a speed sensor generating a first signal corresponding to wheel speed of the vehicle;

    a lateral acceleration sensor generating a second signal corresponding to lateral acceleration of the vehicle;

    a roll rate sensor generating a third signal corresponding to a roll rate of the vehicle;

    a yaw rate sensor generating a fourth corresponding to a yaw rate of the vehicle;

    a longitudinal acceleration sensor generating a fifth signal corresponding to longitudinal acceleration of the vehicle; and

    a controller coupled to said speed sensor, said lateral acceleration sensor, said roll rate sensor, said yaw rate sensor and said longitudinal acceleration sensor, said controller determining a roll angle estimate as a function of lateral acceleration, roll rate, vehicle speed, and yaw rate and longitudinal acceleration, and changing a tire force vector in response to the relative roll angle estimate.

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