Compressor frequency calculation method and device of automobile air conditioning system

Abstract

The invention relates to a compressor frequency calculation method and device of an automobile air conditioning system. The method comprises the steps: at least collecting influence factors includingan out-vehicle environment temperature, an in-vehicle environment temperature inside the automobile and a required temperature; and calculating a temperature difference value between the in-vehicle environment temperature and the required temperature, and controlling the compressor frequency at least according to the temperature difference value and the out-vehicle environment temperature to enable the compressor frequency to be in positive correlation with the temperature difference value and the out-vehicle environment temperature. The frequency of the compressor is adjusted according to theenvironment temperature outside the vehicle; when the out-vehicle environment temperature is high, the frequency of the compressor is correspondingly increased, so that the requirement for temperature adjustment is met; when the temperature of the out-vehicle environment is low, the frequency of the compressor is correspondingly reduced, so that the energy saving performance and adaptability of the air conditioning system are both considered while the refrigerating effect is guaranteed.

Description

technical field [0001] The invention relates to the field of automobile air-conditioning control, in particular to a compressor frequency calculation method and device for an automobile air-conditioning system. Background technique [0002] As a device for adjusting temperature, the air conditioning system is widely used. The traditional air conditioning single cycle system is mainly designed for a single space, such as a room, a car, etc., such as figure 1 Shown is the structural schematic diagram of the existing air conditioning system, figure 1 The air conditioning system in China includes a compressor. The outlet of the compressor is connected to the inlet of the condenser through a high-pressure pressure sensor or a switch. The outlet of the condenser is connected to the evaporator through a regulating valve. The sensor or switch is connected to the inlet of the compressor, thereby forming a complete air-conditioning single-cycle system. [0003] The operating frequen...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a compressor frequency calculation method and device for an automobile air-conditioning system, which is used to solve the problems of energy-saving and poor adaptability caused by the control of the compressor frequency in the existing air-conditioning system

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