Method and apparatus of triggering an active device of a vehicle
First Claim
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1. A method of triggering an active device of a vehicle, the method comprising:
- providing a first input of lateral acceleration of the vehicle;
providing a second input of steering angle;
providing a third input of rate of change of steering angle;
determining an estimated vehicle roll rate from only said first, second and third inputs; and
triggering an active device of the vehicle if the estimated vehicle roll rate exceeds a threshold roll rate.
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Abstract
An active device of a vehicle, for example a seat belt tensioner, is triggered by reference to an estimated vehicle roll rate exceeding a threshold roll rate. The estimated vehicle roll rate may be conditioned according to vehicle speed, and is determined from inputs of vehicle lateral acceleration, steering wheel angle, and steering wheel speed.
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Citations
10 Claims
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1. A method of triggering an active device of a vehicle, the method comprising:
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providing a first input of lateral acceleration of the vehicle; providing a second input of steering angle; providing a third input of rate of change of steering angle; determining an estimated vehicle roll rate from only said first, second and third inputs; and triggering an active device of the vehicle if the estimated vehicle roll rate exceeds a threshold roll rate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification