Trailer backup assist system with hitch angle offset estimation
First Claim
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1. A system for estimating hitch angle offset comprising:
- a sensor system configured to measure hitch angles between a vehicle and a trailer attached thereto; and
a controller configured to;
calculate hitch angle offsets for a plurality of measured hitch angles;
extrapolate additional hitch angle offsets based on the calculated hitch angle offsets; and
assist with guiding the vehicle to reverse the trailer on a backing path based on the extrapolated additional hitch angle offsets.
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Abstract
A system for estimating hitch angle offset is provided herein. A sensor system is configured to measure hitch angles between a vehicle and a trailer attached thereto. A controller is configured to calculate hitch angle offsets for a plurality of measured hitch angles, and extrapolate additional hitch angle offsets based on the calculated hitch angle offsets.
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Citations
20 Claims
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1. A system for estimating hitch angle offset comprising:
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a sensor system configured to measure hitch angles between a vehicle and a trailer attached thereto; and a controller configured to; calculate hitch angle offsets for a plurality of measured hitch angles; extrapolate additional hitch angle offsets based on the calculated hitch angle offsets; and assist with guiding the vehicle to reverse the trailer on a backing path based on the extrapolated additional hitch angle offsets. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for estimating hitch angle offset comprising:
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a sensor system configured to measure hitch angles between a vehicle and a trailer attached thereto; and a controller configured to; calculate hitch angle offsets for a plurality of measured hitch angles when a yaw rate of the vehicle and the trailer are substantially equal and constant; extrapolate additional hitch angle offsets based on the calculated hitch angle offsets; and assist with guiding the vehicle to reverse the trailer on a backing path based on the extrapolated additional hitch angle offsets. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method for estimating hitch angle offset comprising the steps of:
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measuring hitch angles between a vehicle and a trailer attached thereto; calculating hitch angle offsets for the measured hitch angles; extrapolating additional hitch angle offsets based on the calculated hitch angle offsets; and assisting with guiding the vehicle to reverse the trailer on a backing path based on the extrapolated additional hitch angle offsets. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification