Power Steering System

In motor vehicles a power steering system helps drivers steer the vehicle by augmenting steering effort needed to turn the steering wheel making it easier for the vehicle to turn or maneuver.

Power steering system.

The engine drives a pump that supplies oil under high pressure to the rack or the steering box. And the power steering system is the advanced steering system in which the effort required to steer the front wheels of the vehicle side to side is reduced by using intermediate electric or hydraulic devices that multiplies the force applied by the driver through steering wheel in order to achieve smooth and quick directional change of the vehicle. When the driver is not exerting force such as when driving in a straight line the system shouldn t provide any assist. The oil works a piston that helps to push the steering in the appropriate direction.

The device that senses the force on the steering wheel is called the rotary valve. Hydraulic or electric actuators add controlled energy to the steering mechanism so the driver can provide less effort to turn the steered wheels when driving at typical speeds and reduce considerably the physical effort necessary to turn the wheels when a vehicle is stopped or moving slowly. Valves in the steering rack or box open whenever the driver turns the wheel allowing oil into the cylinder. The electric power steering system is typically part of the hi speed can bus on the vehicle.

On this network is the ecm for the engine and abs stability control system.