A low power consumption control system and method for a vehicle-mounted air conditioner electric compressor

Abstract

The invention discloses a low-power-consumption control system and a low-power-consumption control method for an electric compressor of a vehicle-mounted air conditioner, and relates to the technical field of permanent magnet motor control. The low-power-consumption control system comprises a singlechip microcomputer, and a driving unit, a detection unit and a low-power-consumption circuit which are respectively connected with the singlechip microcomputer, wherein the driving unit and the detection unit are respectively connected with an electric compressor; the detection unit is used for detecting the working state of the electric compressor in real time; the singlechip microcomputer is used for receiving an external starting instruction and state information fed back by the detection unit and controlling the driving unit and the low-power-consumption circuit; the low-power-consumption circuit further comprises a switching circuit and an awakening circuit; the switching circuit is connected with an input power supply and is used for switching a normal mode and a low-power-consumption mode; the awakening circuit is used for receiving an external awakening instruction and performing processing before the low-power-consumption mode is converted into the normal mode. By adoption of a low-power-consumption form, power can be saved, the battery continuation time is delayed, and an effective refrigeration effect is guaranteed.

Description

technical field [0001] The invention relates to the technical field of permanent magnet motor control, in particular to a low power consumption control system and method for an electric compressor of a vehicle-mounted air conditioner. Background technique [0002] In recent years, the environment and development have been the focus of attention of all countries in the world. Finding a more energy-saving and environment-friendly development mode in the current automobile economy is a common concern of the world. And with the increase in the number of cars, the lag of road construction has caused more and more serious "traffic jams". When fuel-powered vehicles are running and parking at low speeds, the exhaust emissions are 2.5-5 times that of normal high-speed driving. 70% of the emissions come from idling emissions, so the air pollution control in large and medium-sized cities, automobile exhaust bears the brunt. [0003] In the current traditional fuel vehicles, when the o...

AI Technical Summary

Problems solved by technology

[0006] For new energy vehicles such as pure electric vehicles and fuel cell vehicles, the on-board air-conditioning system uses electric compressors, which can play a greater role in low energy consumption and environmental protection. However, due to the limited energy stored in batteries, ordinary air-conditioning systems consume electricity For example, the electric air conditioner of a bus has a power of about 2kw. If energy-saving control is not carried out, the power consumption of the battery will be very fast, and the effective cooling effect cannot be maintained all the time, and it is not conducive to saving energy.

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