How Does Steering System Works?

The power steering system configured on the car can be roughly divided into three categories: mechanical hydraulic power steering system, electrohydraulic power steering system and electric power steering system. The working principle of power steering is to assist the driver to adjust the direction of the car and reduce the strength of the steering wheel for the driver.

power steering system

A mechanical hydraulic power steering system is generally composed of a hydraulic pump, oil pipe, pressure and flow control valve body, V-shaped transmission belt, oil storage tank and other components. The mechanical hydraulic power steering system consists of hydraulic pump, pipelines, and cylinders. In order to maintain the pressure, the system needs to be in a working state all the time, and the energy consumption is high, which is also one of the reasons for resource consumption. There are many mechanical hydraulic power assist systems used in general economical cars.

Electro-hydraulic power steering system.

Because mechanical hydraulic power consumes a lot of engine power, people have improved on the basis of mechanical hydraulic power and developed a more energy-saving electro-hydraulic power steering system. The steering oil pump of this system is no longer directly driven by the engine but is driven by the motor, and an electronic control system is installed on the basis of the previous one so that the power steering is not only related to the steering angle but also related to the vehicle speed. Mechanically, a hydraulic reaction force device and a liquid flow distribution valve are added, and the newly added electronic control system includes a vehicle speed sensor, a solenoid valve, and a steering ECU. 3. Electronic power steering system (EPS), which uses the power generated by the motor to assist the driver in power steering. The composition of EPS, although the structural components of different vehicles are different, is generally the same. It generally consists of a torque (steering) sensor, an electronic control unit, a motor, a reducer, a mechanical steering gear, and a battery power supply.

Manual transmission

The working principle of a manual transmission is that there are several sets of gear pairs with different transmission ratios in the gearbox. When the car is running, the shifting behavior is to make different gear pairs in the gearbox work through the operating mechanism. For example, a gear pair with a large transmission ratio works at a low speed, and a gear pair with a small transmission ratio works at a high speed.

What is a tractor steering knob？

Before the advent of power steering, steering wheel knobs were common. This knob can be rotated independently of the steering wheel, allowing the user to place his or her palm on the knob and turn the wheel quickly. Using the tractor steering knob can allow the driver to turn quickly, especially in narrow places, which has great advantages. They are usually used in large construction vehicles such as trucks and tractors because the steering wheels of these vehicles are heavy and easy to operate, and the steering wheel knob can help the vehicle turn quickly. For example, a forklift operator may need to make several sharp turns in a row, making the steering wheel knob especially important. Tractor-trailer drivers may also use the knobs on the wheels when trying to make quick turns.