Automobile air conditioner heating method

Abstract

The invention discloses an automobile air conditioner heating method which comprises the steps that on the premise that the power-on state of an automobile is ON, the air conditioner required strengthis calculated by collecting air conditioner settings of a user, and meanwhile whether heating is conducted or not is judged in combination with the collected engine water temperature and evaporator air outlet temperature; signals of in-vehicle temperature, in-vehicle humidity, out-vehicle temperature and sunlight intensity are collected, a front bumper dew point temperature and a front bumper inner wall surface temperature are calculated for judging a fogging risk; in addition, VCU power information is collected to judge whether PTC is allowed to be started or not; meanwhile, the vehicle speed serves as input of a calculation model, and the compensation effect of the vehicle speed on external circulation air intake is considered. And the information is integrated to obtain the temperatureair door opening degree, the air outlet mode, the air blower gear, the internal circulation proportion, the PTC power, the water pump duty ratio and other outputs in the state. On the premise of ensuring that the front gear is not fogged, the internal circulation proportion is increased as much as possible, so that the power consumption of electric appliances such as a PTC, an air blower and a water pump is reduced, and the purpose of saving energy is achieved.

Description

technical field [0001] The invention belongs to the technical field of automobile air conditioners, in particular to a heating method for automobile air conditioners, and is especially suitable for electric vehicles. Background technique [0002] Due to the promotion of national strategies, new energy vehicles, especially pure electric vehicles, have developed rapidly in recent years, and major traditional car companies and new car companies have joined the competition. In most cold regions in the north in winter, there is a strong demand for heating of automotive air conditioners. In order to meet the heating performance of air conditioners, traditional methods often use auxiliary heating equipment to improve the heating effect, such as PTC heaters, fuel auxiliary heaters, etc., although they can significantly improve heating. effect, but the process of using the car will also generate additional energy consumption, resulting in a large drop in mileage when the vehicle is h...

AI Technical Summary

Problems solved by technology

In most cold regions in the north in winter, there is a strong demand for heating of automotive air conditioners. In order to meet the heating performance of air conditioners, traditional methods often use auxiliary heating equipment to improve the heating effect, such as PTC heaters, fuel auxiliary heaters, etc., although they can significantly improve heating. effect, but the process of using the car will also generate additional energy consumption, resulting in a large drop in driving mileage when the vehicle is heated in winter, causing complaints from many users

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