| 摘要 |
The present invention involves a system and method of controlling a steer-by-wire system to produce adjustable steering feel for A vehicle driver by providing control of reaction torque on a steering wheel of a vehicle. The method includes a quantitative description for the steering feel which is obtained by establishing a relationship of steering wheel reaction torque and steering wheel angle, road wheel torque, and vehicle speed. The system and method include steer-by wire system closed-loop feedback controls with inner torque loop, steering wheel rate feedback loop, and steering wheel angular position feedback loop to implement providing the steering feel, active steering wheel return with the different rotation rate, steering wheel stop according to the road wheel angular position in a parking state, and directional angle reference generation to road wheels.
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