Tire windup compensation
First Claim
1. A system for compensating for tire windup, comprising:
- a motor producing a motor current when providing power steering;
a sensor capable of providing data relative to a steering component movement; and
a controller programmed to modify an output of the motor after a parking event based onthe steering component movement data, anda difference between the motor current during the parking event and a predetermined current magnitude, indicating tire windup from the parking event.
1 Assignment
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Accused Products
Abstract
A system for measuring and compensating for tire windup occurring in road wheels during parking events. A controller receives data comprising a steering motor current and steering system component movement, from that data determines the amount of tire windup is present, and controls the motor to turn a road wheel to an initial position that allows the tire windup to turn the road wheel to a final position. The final desired position of the road wheel may be one for the desired location of the road wheel itself, for the steering wheel, or for a combination of the two. Final desired angular positions of the steering wheel may be one such that an ignition may have greater visibility or one such that the steering wheel is not locked under load.
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Citations
20 Claims
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1. A system for compensating for tire windup, comprising:
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a motor producing a motor current when providing power steering; a sensor capable of providing data relative to a steering component movement; and a controller programmed to modify an output of the motor after a parking event based on the steering component movement data, and a difference between the motor current during the parking event and a predetermined current magnitude, indicating tire windup from the parking event. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 20)
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12. A system for compensating tire windup resulting comprising:
a controller programmed to receive a steering wheel angle position, and control a power steering motor to position a steering wheel at an overshoot/undershoot angular position based on a comparison between a power steering motor current during a parking event and a preset value to allow the steering wheel to rotate to a desired end-of-parking angular position. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
Specification