Description of the car steering (Chevrolet Aveo T250)

The vehicle uses a rack and pinion steering system equipped with a hydraulic booster.

The steering system consists of the following elements: a steering mechanism with steering rods, a steering column with a steering wheel, and an intermediate shaft that transmits torque from the steering column to the steering mechanism. A hydraulic booster is used to reduce the effort applied by the driver to the steering wheel.

The power steering system consists of the following components: the power steering pump, the hydraulic fluid reservoir and the hydraulic cylinder, which is part of the steering gear.

The power steering pump is a vane pump that provides pressure in the hydraulic system, which, acting on the piston of the hydraulic cylinder, creates additional force applied to the steering rack combined with the hydraulic cylinder. The pump is driven by a poly V-belt.

The power steering is controlled by a control valve, which, with a very small turn of the steering shaft relative to the drive pinion of the rack mechanism, directs the flow of working fluid into the required cavity of the hydraulic cylinder until the driver stops the movement of the steering wheel and the rack takes the specified position. This will eliminate the misalignment in the position of the steering shaft and the drive pinion, and the valve will direct the fluid into the bypass channel.

This feature of the hydraulic system determines the need for the driver to ensure that the mechanism does not reach the stops in extreme positions, which will lead to peak loads on the steering rods and in the hydraulic system of the steering drive.

[The article was borrowed from the website: CHEVYMAN.ru]