METHOD FOR DETECTING THE DIRECTION OF TRAVEL OF A MOTOR VEHICLE
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Abstract
The invention concerns a method for determining the direction of longitudinal travel of a vehicle comprising a step (a) of collecting a first signal (Signal1), representative of a first driving parameter, such as the steering-wheel torque, and of which the sign of the value and/or the sign of the variations is not dependent on the direction of longitudinal travel of the vehicle, a step (b) of collecting a second signal (Signal2), representative of a second driving parameter separate from the first driving parameter, such as the yaw rate, and of which the sign of the value and/or the sign of the variations changes on the basis of the direction of longitudinal travel of the vehicle, then a step (c) of comparing signs during which the sign of the value, or of the variation, of the first signal (Signal1) is compared with the sign of the value, or of the variation, of the second signal (Signal2) in order to deduce therefrom the direction of longitudinal travel of the vehicle, depending on whether said signs are identical or, on the contrary, different.
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20 Claims
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1-10. -10. (canceled)
- 11. A method for determining the longitudinal direction of travel of a vehicle, said method comprising a step (a) of collecting a first signal (Signal1), representing a first driving parameter, wherein the sign of the value of said first signal and/or the sign of the variations of said first signal does not depend on the longitudinal direction of travel of the vehicle, a step (b) of collecting a second signal (Signal2), representing a second driving parameter distinct from the first driving parameter, and wherein the sign of the value of said second signal, and/or the sign of the variations of said second signal changes depending on the longitudinal direction of travel of the vehicle, then a signs comparison step (c) during which the sign of the value, respectively the sign of the variation, of the first signal (Signal1) is compared with the sign of the value, respectively the sign of the variation, of the second signal (Signal2) in order to deduce therefrom the longitudinal direction of travel of the vehicle, depending on whether said signs are identical or on the contrary different, said method being wherein the first considered driving parameter is the wheel torque, representing the torque exerted by the driver on the steering wheel.
Specification