Communication between the injection computer and the air conditioning computer
Variable air conditioning compressor.
The injection computer and the air conditioning computer are connected via a multiplex network. Function selection «Air conditioner» does not affect idle speed.
A/C Compressor Activation Strategy
In some engine operating modes, the injection computer inhibits the operation of the air conditioning compressor.
Engine start strategy
The operation of the air conditioning compressor is prohibited when the engine is started for 5 seconds.
Performance recovery
With a significant change in the position of the fuel supply control pedal, if the engine speed is below 3000 min ', the operation of the air conditioning compressor is prohibited for 5 seconds.
Restoring power when the vehicle starts moving
If the throttle pedal is depressed more than 50%, the crankshaft speed is less than 2250 rpm-1, and the vehicle speed is below 20 km/h. the compressor is switched off for 5 s.
Motor stall protection
If the position corresponding to the released throttle pedal is not recognized and the engine speed is below 675 rpm-1, the compressor is switched off and on again after 5 seconds if the engine speed is increased.
Thermal protection strategy
The air conditioning compressor does not turn on if the coolant temperature is above 112°C.