Method of operation of an air conditioning installation of a motor vehicle, and air conditioning installation equiped of a circuit of a refrigerant

摘要

Air conditioning installation equipped with a circuit for cooling agent (22) comprising an evaporator (26), a compressor (30) to variable capacitance, which is controlled by the engine (30) of the vehicle, a condenser (25) and a pressure-reducing valve (27), as well as fans (28, 29) associated with the evaporator and the condenser. An electronic control circuit (34) generates, as a function of the input signals of the output signals of attack of members the regulating of components of the installation.au least two variables of state of the circuit (22) are detected and the speed of adjustment of the compressor (31) is determined by comparing the instantaneous volume, which is determined with the aid of these variables, and the maximum volume prescribed delivery compresseur.application to the reduction of the energy consumption.