Basic Principle

EPS system judges the driving intention of the dri ver by steering wheel angle signal and obtains the current motion status of the vehicle through four wheel speed sensors and horizontal acceleration sensor and lateral acceleration sensor and yaw rate sensor inside the ESP.Then compare the two status,and if the actual motion status doesn’t comply with the driving intention of the driver,ESP will brake the certain wheel by requesting the engine management system to reduce the torque and pressure to make the vehicle move in accordance with the driving intention of the driver so as to ensure the driving stability and steering stability of the vehicle.CX70 EPS circuit diagram is shown in Fig.5.8 and fuse position is shown in Fig.5.9.

Fig.5.8 CX70 ESP System Circuit Diagram(https://www.daowen.com)

Fig.5.9 Fuse Position of ESP System