Composition of Electric Power Steering System

The Electric Power Steering System (EPS) is mainly composed of the following parts:
Torque sensor: used to detect the driver's steering torque, which is one of the core components of the EPS system.
Vehicle speed sensor: used to measure the speed of the vehicle so as to adjust the power torque according to the vehicle speed and provide more appropriate steering assistance.
Motor: provides auxiliary torque to help reduce the driver's steering burden.
Deceleration mechanism: transmits the driving force of the motor to the steering mechanism to achieve steering operation.
Electronic Control Unit (ECU): calculates the power torque according to the torque signal and controls the drive of the motor, which is the core control component of the EPS system.
Working principle of the Electric Power Steering System: When the driver turns the steering wheel, the torque sensor detects the steering torque and transmits the signal to the ECU. The ECU calculates the required power torque based on the vehicle speed information provided by the vehicle speed sensor and controls the motor to provide the corresponding auxiliary torque. The motor transmits power to the steering mechanism through the deceleration mechanism, thereby reducing the driver's steering burden.