Rear wheel steering control system and control method of using the same

A rear wheel steering control method for a rear wheel steering (RWS) system of a vehicle, the rear wheel steering control method comprising:

• detecting a magnitude of a battery voltage of a battery of the vehicle;
• comparing the magnitude of the battery voltage with a magnitude of a required voltage required for normally operating a rear wheel steering actuator of the RWS system;
• calculating a magnitude of a supplemental voltage that supplements the battery voltage based on the comparing of the magnitude of the battery voltage with the magnitude of the required voltage;
• and
• controlling a supplemental voltage circuit unit so as to generate the supplemental voltage according to the calculated magnitude.

A non-transitory computer readable medium containing program instructions for controlling a rear wheel steering (RWS) system of a vehicle, the program instructions when executed by a processor causing the processor to:

• compare a magnitude of the battery voltage detected by voltage detecting unit with a magnitude of a required voltage required for normally operating a rear wheel steering actuator of the RWS system;
• calculate a magnitude of a supplemental voltage that supplements the battery voltage based on the comparing of the magnitude of the battery voltage with the magnitude of the required voltage;
• and
• control a supplemental voltage circuit unit so as to generate the supplemental voltage according to the calculated magnitude.