SYSTEM AND METHOD FOR DETERMINING A HITCH ANGLE OFFSET
First Claim
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1. A method of estimating an actual hitch angle between a vehicle and a trailer, comprising:
- sensing a measured hitch angle with a hitch sensor on the vehicle;
sensing a steering angle of steered wheels of the vehicle;
reversing the vehicle; and
determining an offset between the measured hitch angle and the actual hitch angle when the measured hitch angle and the steering angle are substantially constant while the vehicle is reversing.
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Abstract
A system and a method are provided for estimating an actual hitch angle between a vehicle and a trailer. A hitch sensor on the vehicle continuously senses a measured hitch angle and a steering sensor continuously senses a steering angle of steered wheels of the vehicle. A controller determines an offset between the measured hitch angle and the actual hitch angle when the measured hitch angle and the steering angle are substantially constant while the vehicle and trailer are reversing.
137 Citations
20 Claims
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1. A method of estimating an actual hitch angle between a vehicle and a trailer, comprising:
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sensing a measured hitch angle with a hitch sensor on the vehicle; sensing a steering angle of steered wheels of the vehicle; reversing the vehicle; and determining an offset between the measured hitch angle and the actual hitch angle when the measured hitch angle and the steering angle are substantially constant while the vehicle is reversing. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of estimating an actual hitch angle between a vehicle and a trailer, comprising:
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sensing a measured hitch angle continuously; sensing a steering angle of the vehicle continuously; determining an offset between the measured hitch angle and the actual hitch angle when the measured hitch angle and the steering angle are substantially constant while the vehicle and the trailer are reversing over a threshold distance. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. A system for estimating an actual hitch angle between a vehicle and a trailer, comprising:
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a hitch sensor on the vehicle continuously sensing a measured hitch angle; a steering sensor continuously sensing a steering angle of the vehicle; and a controller determining an offset between the measured hitch angle and the actual hitch angle when the measured hitch angle and the steering angle are substantially constant while the vehicle and the trailer are reversing. - View Dependent Claims (18, 19, 20)
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Specification