A method based on dual-channel pm2.5 sensor to improve the air purification efficiency in the car

Abstract

The invention provides a method for improving the in-vehicle air purification efficiency based on a double-channel PM2.5 sensor. The method comprises the following steps that the PM2.5 concentration inside and outside the vehicle is detected in real time by the double-channel PM2.5 sensor, and a signal is sent to an air-condition controller; the air quality grade inside and outside the vehicle iscalculated by the air-condition controller according to the air quality grade calculation model; the internal and external circulation switching unit is automatically controlled to switch between theinternal and external circulation modes of the vehicle air conditioner, so that high-concentration PM2.5 dust outside the vehicle is prevented from entering the vehicle, or it is ensured that clean air outside the vehicle can enter the vehicle for fresh air ventilation; meanwhile, the air flow gear adjusting unit is automatically controlled to adjust the gear of the vehicle air-condition blower bythe air-condition controller according to the air flow grade in the vehicle so as to effectively reduce the PM2.5 dust concentration in the vehicle. The air purification air flow and the switch between the internal and external circulation are automatically controlled according to the air quality inside and outside the vehicle, so that the air purification efficiency is guaranteed to be the highest and respiratory health of users is ensured in different air pollution degrees.

Description

technical field [0001] The invention relates to the technical field of automobile air conditioners, in particular to the air purification control technology. Background technique [0002] With the changes in social living, working methods and family visits and leisure needs, people stay in cars for longer and longer, and cars have almost become people's "mobile homes". In recent years, the air quality in some areas of my country has declined significantly, and smoggy weather has frequently appeared. PM2.5 particulate matter in the ambient gas outside the car enters the car through the open windows and the air-conditioning system, resulting in a decline in the air quality inside the car. The quality of the air quality in the car will directly affect the health of passengers and the fatigue of the driver, thus causing people to pay attention to the air quality inside and outside the car. How to create a truly clean, safe and comfortable air environment in the car has become an...

AI Technical Summary

Problems solved by technology

[0004] At present, more and more vehicles are equipped with air purifiers aimed at eliminating PM2.5, which can realize the functions of PM2.5 concentration monitoring and purification, but there are generally disadvantages such as single purification function, unintuitive display of purification indicators, and poor purification efficiency.

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