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Zhaowei Machinery & Electronics Co., Ltd.

Electric Power Steering (EPS) Gearbox

Electric power steering (EPS), uses power generated by an electric motor to assist the driver in steering. Electric power steering has more advantages when compared traditional hydraulic power steering systems and has recently been gaining rapid popularity.

The electric power steering system generally consists of torque sensors, electronic control units (ECU), motors, and mechanical steering gears. The power generated by EPS depends on the size of the motor, the current, and the gear ratio of the gearbox. The ZHAOWEI gear motor for the EPS systems provides higher stability and reliability and is suitable for the automobile industry. The steering assistance provided by the EPS system is directly generated from the motor, without a need to mount power steering oil pumps, hoses, hydraulic oil, conveyor belts, or pulleys on the engine. It saves energy and protects the environment. In addition, it allows for simple adjustment, flexible assembly, and high adaptability in all kinds of situations. The EPS system for automobiles can greatly reduce difficulty in adjusting the steering wheel. It can improve the stability of operation and save on a lot of space.

Electric Power Steering Gear Motor

Electric Power Steering Gear Motor

When the driver performs steers the steering wheel, the torque sensor detects the steering motion of the steering wheel and the magnitude of the torque. It then transmits the voltage signal to the electronic control unit. The electronic control unit issues instructions to the motor control according to the voltage signal, direction of rotation, and speed signal detected by the torque sensor, making the electric motor output steering assist the torque of the corresponding magnitude and direction, thereby generating auxiliary power. With the electric power steering system’s gear motor, this process can be executed intelligently and efficiently.

Electric Power Steering Gear Motor

EPS Gearbox

ZHAOWEI Gear Motor for Electric Power Steering

Based on a mathematical model and auxiliary characteristics, ZHAOWEI has created an automobile gear motor for EPS, also called EPS gearbox. ZHAOWEI has used a DC servo motor for the EPS system. Equipped with a gearbox, it features a wide speed adjustment range, high torque, large overload capacity, high reliability, small energy loss, and low noise levels. It allows for smooth adjustment and flexible control as well. The gear ratio of the gear motor influences the assist force of the EPS system. For higher quality and better performance, ZHAOWEI has analyzed the characteristics of the EPS auxiliary functions.

* The electric power steering gear motor mentioned above has been developed for specific customers. It can also be customized according to customer requirements.

Electric Power Steering (EPS) Gearbox

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