Vehicle power steering systems control direction and flow of pressure oil with servo valves, then transfer angular inputs from steering wheels to corner angular outputs of road wheels.

The PLC is used in automatic pressure surge control, oil temperature control, product test control, and automatic measurement of pressure, flow, temperature, speed, torque, etc.

Liquid system is the need for oil pressure, flow, direction control and regulation to meet the needs of working parts in the power, speed and direction requirements.