B - Operations – Transporting – 62 – D
Patent
B - Operations, Transporting
62
D
B62D 6/00 (2006.01) G05D 3/12 (2006.01)
Patent
CA 2565278
A direction determination system particularly useful with a retrofit automatic steering system compares the rate of change of vehicle yaw rate and the rate of change of the steering wheel position. A determination of the direction is made by comparing the sign of the steering wheel angle change and the sign of the yaw rate change. The GPS course can be monitored after the direction has been determined to provide a more rapid response to changing direction. A change in direction is indicated when the vehicle speed transitions to zero and the GPS course generally reverses. Even when the direction is known, the steering wheel angle and yaw rate changes can be monitored to verify that the direction indication is correct.
Borden Ladner Gervais Llp
Deere & Company
LandOfFree
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