System and method for initial synchronization of steering wheel and road wheels in a steer-by-wire system

   
   

The present invention involves a method for initial synchronization of steering wheel and a road wheels in a steer-by-wire system of a vehicle when the system is first powered. The method includes providing a steering wheel control system and a road wheel control system. The method further includes sensing relative angles and the absolute angles of the steering wheel, road wheel, and right road wheel. The method further includes generating an augmented steering wheel angle, an augmented left road wheel angle, and an augmented right road wheel angle based on the relative angle and initial value of the absolute angles of the steering wheel and road wheels. The method further includes using the augmented steering wheel angle as a feedback signal to the steering wheel control system and the augmented left and right road wheel angles feedback signals to the road wheels control system. The method further includes controlling the steering wheel and the road wheels to perform initial synchronization of the steering wheel and the road wheels, thereby allowing the vehicle to be operable during the initial synchronization.

 
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