Motor vehicle air-conditioning system regulating method, involves performing regulation of power of compressor depending on measured or determined parameter of air-conditioning system or motor vehicle or from environment of motor vehicle

摘要

The method involves determining a reference evaporator temperature and an actual evaporator temperature, where a refrigerant circuit (1) of a motor vehicle air-conditioning system includes an evaporator (2), a compressor (3) with variable power, a condenser (4) and an expansion device (5). A difference of the reference evaporator temperature and the actual evaporator temperature is determined. Regulation of power of the compressor is performed depending on a measured or determined parameter e.g. humidity, of the system or the motor vehicle or from an environment of the motor vehicle. An independent claim is also included for a motor vehicle air-conditioning system comprising a differential pressure regulating valve.