Automobile steering system is a series of devices used to change or maintain the direction of the car traveling or backward, its main function is to control the direction of the car according to the driver's wishes.
System Classification
Automobile steering system according to the different steering energy, mainly divided into two categories:
1, Mechanical steering system:
Mainly by the steering manipulation mechanism, steering gear and steering transmission mechanism composed of three major parts. The main parts include the steering wheel, steering shaft, steering column, steering gear and so on. Mechanical hydraulic power is characterized by the whole system are mechanical structure, mature and stable technology, high reliability.
2, Power steering system:
Mechanical hydraulic power steering system: generally consists of hydraulic pumps, tubing, pressure and flow control valve body, V-type drive belt, oil tank and other components. Electro-hydraulic power steering system: the main components include oil storage tank, power steering control unit, electric pump, steering, power steering sensors and so on. Electric power steering system (EPS): the use of electric motor power to assist the motorist to power steering, generally by the torque (steering) sensor, electronic control unit, electric motor, reducer, mechanical steering, and battery power supply is composed of. A steering system that utilizes both the driver's physical strength and engine power as steering energy. According to the different forms of assistance, power steering system can be subdivided into the following categories:
Working Principle
The working principle of automobile steering system is that when the driver turns the steering wheel, the torque sensor will sense the torque of the steering wheel and the direction of rotation, and these signals will be transmitted to the electronic control unit (ECU) through the data bus. according to the transmission torque, the direction of the proposed direction of rotation and other data signals, the ECU sends out the action instruction to the motor controller, and the motor outputs the corresponding size of the rotating moment according to the specific needs, and then drives the steering gear to work, making the steering wheel work, so that the power steering system can work. The motor outputs the corresponding rotating torque according to the specific needs, and then drives the steering gear to work, so that the vehicle changes the driving direction according to the driver's wishes.
System Importance
Automobile steering system is a crucial part of vehicle control, and its performance directly affects the maneuverability, safety and driving comfort of the vehicle. Especially the power steering system, through the use of engine power to assist the driver to steer, not only improves the steering of the lightness, but also in the vehicle at high speeds, but also can provide enough steering resistance to ensure the stability of the vehicle. In addition, with the continuous development of electronic technology, the steering system of modern automobiles is becoming more and more intelligent, which can better adapt to a variety of driving conditions and improve the convenience and safety of driving.
