The air conditioning control system collects external signals through the input module to monitor the internal/external environmental conditions of the vehicle. The main conditions are detected as follows.

1. Environmental status parameter monitoring: the external temperature sensor is installed at the air inlet of the evaporator to provide ambient temperature parameters to the air conditioner. Usually, multiple measured values are taken as the input parameter to take the arithmetic mean value as the input parameter, which can improve the accuracy of ambient temperature measurement. Accuracy and reliability. The temperature sensor in the car is installed in the front reading light of the ceiling to provide the temperature parameters in the car to the control system; the sunshine intensity sensor is installed on the instrument panel to provide the sunlight intensity parameters to the control system.

2. Vehicle driving status monitoring: The water temperature sensor directly borrows the water temperature sensor of the engine to provide the engine water temperature parameters to the control system. When heating in winter, if the engine water temperature is too low, the control system will not let the blower work to avoid the external temperature is very low The air in the car enters the car before it is fully heated, but reduces the temperature inside the car.

3. Keyboard setting parameter input: In AUTO mode, you only need to input the set temperature from the control panel of the control system, and you can also input the air outlet mode if necessary.