Air-conditioning temperature control system and method

Abstract

The invention discloses an air-conditioning temperature control system and an air-conditioning temperature control method, which relate to the technical field of electric automobiles. The system comprises a temperature controller, an evaporator outlet temperature detector, a potentiometer and an air conditioner compressor motor, wherein the temperature controller is used for comparing a temperature voltage signal detected through the evaporator outlet temperature detector with a sampling voltage signal output by the potentiometer, and controlling the air conditioner compressor motor according to a comparison result; the evaporator outlet temperature detector is connected with the temperature controller, and is used for detecting the temperature at the outlet of an air conditioner evaporator and transmitting a detected temperature signal to the temperature controller; the potentiometer is connected with the temperature controller, and is used for outputting a sampling voltage signal which corresponds to a target temperature to the temperature controller; and the air conditioner compressor motor is connected with the temperature controller, and is used for driving the air conditioner compressor under the control of the temperature controller. The system and the method have high temperature control accuracies, and are used for adjusting the compressor output power in real time.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to an electric vehicle air conditioner temperature control system and method. Background technique [0002] With the development of society and the increasingly prominent issues of energy and environmental protection, pure electric vehicles have attracted more and more attention from countries all over the world due to their advantages of zero emission and low noise, and are called green vehicles. [0003] There is a mechanical mechanism behind the temperature switch of the traditional automotive air conditioner controller. The user rotates the temperature switch at a certain angle, and the mechanical mechanism drives the damper of the air conditioning box to move. Only by adjusting the ratio of cold and warm air flowing through the damper to adjust the temperature inside the car, the temperature control accuracy is low. ; In addition, the air conditioner controller can on...

AI Technical Summary

Problems solved by technology

[0003] There is a mechanical mechanism behind the temperature switch of the traditional automotive air conditioner controller. The user rotates the temperature switch at a certain angle, and the mechanical mechanism drives the damper of the air conditioning box to move. Only by adjusting the ratio of cold and warm air flowing through the damper to adjust the temperature inside the car, the temperature control accuracy is low. ; In addition, the air conditioner controller can only start and stop the electric compressor, and cannot adjust the output power of the compressor in real time according to actual needs, which will cause energy waste

Images