Method for controlling outlet air temperature of automobile air conditioner

Abstract

A method for controlling the outlet air temperature of an automobile air conditioner includes the steps of determining a target outlet air temperature at least according to a user setting and temperatures inside and outside an automobile; calculating a first temperature air door position according to the target outlet air temperature, an evaporator temperature and a coolant temperature; calculating a second temperature air door position according to the target outlet air temperature and an actual outlet air temperature; determining a temperature air door position according to the first temperature air door position and the second temperature air door position; and controlling a temperature air door of the automobile air conditioner by using the temperature air door position. According to the method, the first air door position and the second air door position are calculated according to conditions inside and outside the automobile, the user setting, the evaporator temperature and the coolant temperature and integrated as position output of the temperature air door, therefore the outlet air temperature changes along with the target rapidly in a dynamic process, the temperature is accurate and stable in a steady state, the comfortable temperature in the automobile is guaranteed, and user operations are reduced.

Description

technical field [0001] The invention relates to the control of an automobile air conditioner, in particular to a method for controlling the outlet air temperature of the automobile air conditioner. Background technique [0002] Car manual air conditioners have no control logic. In order to ensure a comfortable temperature inside the car, as the environment outside the car changes during driving, the operating status of the air conditioning system changes, and the user feels lag, the user needs to operate the air conditioner by himself and change the settings frequently, resulting in air conditioner failure. The temperature of the air outlet fluctuates from hot to cold, resulting in fluctuations in the temperature inside the car, which affects the comfort of the users in the car. [0003] At present, with the continuous development of the automobile industry and the continuous improvement of the comfort requirements in the car, more and more automatic air-conditioning systems...

AI Technical Summary

Problems solved by technology

[0002] Car manual air conditioners have no control logic. In order to ensure a comfortable temperature inside the car, as the environment outside the car changes during driving, the operating status of the air conditioning system changes, and the user feels lagging behind, the user needs to operate the air conditioner by himself and change the settings frequently, resulting in air conditioner failure. The temperature of the air outlet changes from hot to cold, resulting in fluctuations in the temperature inside the car, which affects the comfort of the users in the car

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