Oil-pressure control: Notes

The oil pump must ensure a reliable oil supply under all operating conditions. The new engines have characteristic-map-regulated activation of the oil pump (not volume-flow-regulated). This pump only supplies the amount of oil required by each operating range of the engine. The following advantages result:

• Lower pump output necessary
• Lower fuel consumption of the engine

The oil-pressure control is electrically activated by the DME via an electrohydraulic oil pressure regulating valve (solenoid valve). The oil pressure sensor handles the monitoring.

The electrical activation enables further optimization of the power dissipation of the oil pump.