According to the different ways of booster, the steering wheel is divided into which three kinds?

According to the different ways of booster, the steering wheel is divided into mechanical steering gear, mechanical hydraulic power steering, electro-hydraulic power steering in three forms.

Mechanical steering is more widely used, and according to their different structural characteristics, it can be divided into rack and pinion steering, recirculating ball steering, worm-roller steering and worm finger-pin steering and so on. Mechanical hydraulic power steering system consists of hydraulic pumps and pipelines and cylinders, in order to maintain the pressure, regardless of whether the need for steering assistance, the system must always be in working condition, high energy consumption.

Expanded Information:

Electro-hydraulic power steering principle:

Electro-hydraulic power steering system overcomes the shortcomings of the traditional hydraulic power steering system. It uses a hydraulic pump is no longer directly driven by the engine belt, but an electric pump, all of its work is calculated by the electronic control unit according to the vehicle's driving speed, steering angle and other signals the most ideal state.

Simply put, in the low-speed steering, the electronic control unit drives the electronic hydraulic pump to run at high speed to output greater power, so that the driver to hit the direction to save energy; car at high speeds, the hydraulic control unit drives the electronic hydraulic pump to run at lower speeds, without affecting the need for high-speed steering at the same time, to save part of the engine power.

Baidu Encyclopedia - Steering Wheel