Operating air conditioning system, especially for motor vehicle, involves deriving torque demand for air conditioning compressor from ratio of air conditioning system high and low pressures

摘要

The method involves deriving the torque demand for the air conditioning compressor (14) from the ratio of a high system pressure and a low system pressure of the air conditioning system. The high system pressure is an air conditioning compressor output pressure and the low system pressure is a suction pressure of the air conditioning compressor. The pressures are measured using at least one sensor (22,24). AN Independent claim is also included for the following: (a) an air conditioning system, especially for a motor vehicle.