GF07.61-P-4018V ME Power Steering Pump Pressure Regulator Valve Actuation Function

GF07.61-P-4018V ME Power Steering Pump Pressure Regulator Valve Actuation Function

Component Identification:

Via the map-dependent actuation of the quantity control valve at the power steering pump, engine load is reduced to optimize fuel consumption.

The quantity control valve is located in a bypass to the working chamber of the power steering pump.
Actuation takes place via a PWM signal (duty cycle from 10 to 90 %). Current consumption is from 0 to 900 mA.

Via the valve opening, the volume flow to the power steering pump is matched to the requirement. It is dependent on the following input signals:
^ Engine speed
^ Vehicle speed (via CAN)
^ Steering angle (via CAN)
^ Steering angle speed (via CAN).

The quantity control valve is connected fast to the power steering pump. The coil resistance at room temperature is around 5.5 ohms and the max. current uptake around 0.9 A.

With ignition ON, during engine start and in the event of a fault, the pressure control valve is fully opened (actuation interrupted). Maximum support via the power steering pump is thus available.