1. The power steering pump is the power source of the hydraulic power steering system, which converts the mechanical energy into hydraulic energy through the engine as the transmission medium, and the steering gear converts the hydraulic energy into mechanical energy through the hydraulic oil output of the oil pump, so as to reduce the driver's operating intensity and improve the maneuverability of the vehicle.
2. Control the internal pressure of the power steering pipeline through the pressure safety valve to ensure the safety of the steering system.
3. The flow of the steering system is controlled through the flow control valve to ensure the driver's steering feel when the vehicle is driving at high speed.