Control of active vehicle devices during cornering
AssigneeJaguar Land Rover Limited
InventorPaul Bunker
Life of this patent
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Abstract
A method of triggering an active device of a vehicle at a pre-determined threshold comprises generating a steering wheel signal from steering angle rate of change of steering angle of the vehicle, the signal representing an advance in time in comparison to the steering wheel position and/or speed, and determining a conditioned vehicle lateral acceleration in dependence on the steering wheel signal and a measured vehicle lateral acceleration, the conditioned vehicle lateral acceleration being advanced in time in comparison with the measured vehicle lateral acceleration. An active device of the vehicle is triggered if the conditioned vehicle lateral acceleration exceeds a threshold lateral acceleration.
Claims13
A method of triggering an active device of a vehicle comprising:
- generating a steering signal from a steering angle and a rate of change of steering angle of the vehicle, said signal representing an advance in time in comparison to said steering angle;
- determining a conditioned vehicle lateral acceleration in dependence on said steering signal and a measured vehicle lateral acceleration, said conditioned vehicle lateral acceleration being advanced in time in comparison with said measured vehicle lateral acceleration;
- and
- triggering an active device of the vehicle if said conditioned vehicle lateral acceleration exceeds a threshold lateral acceleration.
A system for a vehicle comprising an electronic control unit (ECU) and one or more sensors in communication with the ECU, wherein the ECU and the one or more sensors generate a steering signal from a steering angle and a rate change of steering angle of the vehicle, said signal representing an advance in time in comparison to said steering angle;
- determine a conditioned vehicle lateral acceleration in dependence on said steering signal and a measured vehicle lateral acceleration, said conditioned vehicle lateral acceleration being advanced in time in comparison with said measured vehicle lateral acceleration ;and trigger an active device of the vehicle if said conditiond vehicle lateral acceleration exceeds a threshold lateral acceleration.
Dependencies are inferred from the claim text.