Steering pull compensation
First Claim
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1. A method for compensating for steering pull during straight line driving, conditions using a controller in a motor vehicle, the method comprising the steps of:
- verifying a straight line driving condition of the motor vehicle; and
adjusting drive torque output by the controller to maintain steering load below a predetermined threshold value only during the verified straight line driving condition.
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Abstract
A method for steering pull compensation to maintain a steering load below a predetermined threshold value. A straight line driving condition is verified through vehicle sensors and/or GPS, drive torque control is performed such that the steering load is kept below the predetermined threshold value. The steering pull compensation method may be disabled by a vehicle operator and is disabled in the absence of a verified straight line driving condition.
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Citations
18 Claims
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1. A method for compensating for steering pull during straight line driving, conditions using a controller in a motor vehicle, the method comprising the steps of:
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verifying a straight line driving condition of the motor vehicle; and adjusting drive torque output by the controller to maintain steering load below a predetermined threshold value only during the verified straight line driving condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for compensating for steering pull during straight line driving conditions, the method comprising the steps of:
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verifying a straight line driving condition of a motor vehicle; sensing steering load, steering wheel rate, vehicle body yaw rate, and lateral acceleration; estimating road crown angle from the relationship between a sensed vehicle side fierce, a sensed applied moment, a known vehicle weight, a known vehicle center of gravity position, and a tire pneumatic trail estimate for low-level tire lateral slip; and adjusting drive torque output by a controller based on sensed values and the estimated road crown angle to maintain steering load below a predetermined threshold value only during a straight line driving condition. - View Dependent Claims (15, 16, 17, 18)
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Specification