The present invention relates to an electric steering apparatus including: a steering wheel controlled to steer a vehicle; a sensor module sensing vehicle velocity, steering torque, and a steering angle; a steering shaft combined with the steering wheel, and including a driven gear installed on a predetermined position in a shaft line direction; an MDPS motor including a driving gear geared to the driven gear; a main control part calculating assisting torque by receiving the vehicle velocity, the steering angle, and the steering torque from the sensor module, and operating the MDPS motor while performing CAN communication with the MDPS motor; an assistive driving part installed in a partial area in the shaft line direction of the steering shaft at a distance from the driven gear; and an assistive control part driving the assistive driving part by intervening in case of the malfunction of the MDPS motor or main control part and disconnection between the MDPS motor and the main control part. Therefore, the present invention is capable of preventing accidents by providing an assistive steering force to a driver.
본 발명은 전동식 조향장치에 관한 것으로, 차량을 조향하기 위해 조작하는 조향휠과, 차속, 조향토크 및, 조향각을 감지하는 센서모듈과, 조향휠에 결합되고, 축선방향 소정 위치에 설치된 종동기어를 갖는 조향축과, 종동기어와 치합되는 구동기어를 가지는 MDPS 모터와, 센서모듈로부터 조향토크, 조향각 및, 차속을 입력받아 보조토크를 산출하고, MDPS 모터와 캔(CAN) 통신하면서 MDPS 모터를 구동시키는 메인제어부와, 조향축의 축선방향 일부영역에 종동기어로부터 이격되게 설치된 보조구동부 및, MDPS 모터 또는 메인제어부의 고장 및 MDPS 모터와 메인제어부의 통신이 단절되었을 때 개입하여 보조구동부를 구동시키는 보조제어부를 포함한다.
Electronic Power Steering Apparatus
전동식 조향장치
2019-05-31
Patent
Electronic Resource
Korean