GF09.50-P-3001AM Supercharger Control Function

GF09.50-P-3001AM Supercharger Control Function
ENGINE 113.990 in MODEL 211, 219
ENGINE 113.991 in MODEL 215, 220
ENGINE 113.992 in MODEL 230 up to Model Year 2008
ENGINE 113.993 in MODEL 463 up to 31.5.12
ENGINE 113.995 in MODEL 230 up to Model Year 2008





50 Compressor

B17/8 Charge air temperature sensor
B28 Pressure sensor (charge air)
B37 Accelerator pedal sensor
L5 Crankshaft position sensor
M16/6 Throttle valve actuator
M16/7 Air recirculation flap actuator (for model 230 at first from 07/2002)
N3/10 ME control unit
Y2/1 Supercharger magnetic clutch

The compressor is switched on and off by means of actuation of the supercharger magnetic clutch by the ME control unit.

Actuation of the magnetic clutch is undertaken by the ME-SFI [ME] control unit in accordance with the performance map according to the engine speed and engine load.

Here the Magnetic clutch is actuated by the ME-SFI [ME] control unit by means of a ground signal.
The voltage supply to the magnetic clutch is via "terminal 15 secured".

The compressor is actuated between idling speed and an engine speed of about 3500 rpm when a high demand for torque (high engine loading) is present.

The compressor is always actuated for technical reasons from an engine speed of about 3500 rpm.

The compressor remains switched on during the thrust phase of the engine. This avoids any delay in actuation during the changeover from the thrust phase to the pulling phase.

The compressor is not actuated on a stationary vehicle, no matter what the engine speed is, to protect it.

The compressor is also not actuated when the battery voltage falls below 9 V or when an error is recognized in the charge air cooling system due to an implausible value from the temperature sensor.

The compressor is switched on shortly when starting at external temperatures below 0°C in order to free up the compressor from any icing which may have occurred (through the presence of condensate in the compressor).

Diagnosis of the magnetic clutch on the mechanical supercharger is possible using the menu "Actuations" for the ME 2.8.1 control unit in the STAR DIAGNOSIS equipment.