Wheel alignment system and method for vehicles having steer-by-wire steering system
AssigneeDelco Electronics Corporation
InventorsRobert Allan Perisho, Jr., Kevin Michael Deasy
Life of this patent
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Abstract
The present invention provides for a wheel alignment procedure for a vehicle having a steer-by-wire steering system. The wheel alignment procedure includes determining an offset alignment value for a road wheel of a vehicle. The offset alignment value may be determined as the difference between the sensed wheel angle and a measured true angular position of the road wheel. The method further includes the step of adjusting the road wheel position as a function of the offset alignment value. Accordingly, the vehicle road wheel can be aligned by adjusting a calibration value in a controller without requiring physical adjustment of a mechanical linkage.
Claims13
A wheel alignment method for aligning one or more road wheels of the vehicle, said method comprising the steps of:
- measuring a true angular position of a road wheel of a vehicle;
- sensing a wheel angle position of the road wheel;
- determining an offset alignment value as a function of said measured true angular position and said sensed wheel angle position;
- and
- adjusting angular position of the road wheel as a function of said offset alignment value.
A wheel alignment method for aligning one or more road wheels of a vehicle equipped with a steer-by-wire steering system, said method comprising the steps of:
- measuring a true angular position of a road wheel of a vehicle;
- sensing a wheel angle position of the wheel of the vehicle with an angular position sensor;
- comparing the sensed wheel angle position to the measured true angular position;
- determining an offset alignment value as a function of said comparison;
- and
- adjusting position of the road wheel as a function of said offset alignment value.
A steer-by-wire steering and alignment system for a vehicle equipped with one or more road wheels, said system comprising:
- an actuator for actuating a road wheel of said vehicle;
- an actuator position sensor for sensing angular position of said road wheel;
- a controller for controlling said actuator;
- a steering wheel for controlling directivity of said road wheel;
- a steering wheel sensor for sensing position of said steering wheel, said steering wheel sensor providing a signal to control actuation of said road wheel;
- an alignment measuring device for measuring true angular position of the wheel;
- and
- a controller for comparing the sensed angular position and the measured true angular position and determining an offset adjustment value as a function of said comparison, and further adjusting position of the wheel as a function of the offset alignment value.
Dependencies are inferred from the claim text.