Power Steering System Diagram

All air must be removed or fluid in pump may foam during operation and be discharged from pump reservoir.

Power steering system diagram. Electronic power steering system it is the latest type of power steering system in which the hydraulic system from the hydraulic power steering is completely replaced with electric motors and electric sensors instead of using hydraulic force the motor driven by the vehicle s battery is used to apply force on the steering gear and torque provided by the motor is controlled by the sensors. The rim of a 15 in. The steering torque sensor measures the steering force applied by the driver and enables sensitive control of the electric steering support. It serves the same function as a spool valve in a hydraulic power steering system.

A power steering system should assist the driver only when he is exerting force on the steering wheel such as when starting a turn. Although electric steering systems have become common in most vehicles today initially the basic system for power steering was hydraulic which worked thanks to the precise functioning of a number of small and large mechanical parts. The term power steering is derived from power assisted steering system. The electric power steering system is typically part of the hi speed can bus on the vehicle.

The system allows a driver to use only light forces to steer a heavy car. Below is a diagram showing a typical hose layout. Power steering system must be filled exactly as explained in the following to ensure that all air is bled from the system. When the driver is not exerting force such as when driving in a straight line the system shouldn t provide any assist.

380 mm diameter steering wheel moving four turns from full left lock to full right lock. Bmw power steering system rack hoses and lines aside from a few exceptions bmw uses power assisted rack and pinion steering on every model. The device that senses the force on the steering wheel is called the rotary valve.