A/C System Introduction
Automatic air conditioning system is that controller in HVAC control module (1) automatically controls in-car temperature, fan speed, airflow outlet and so forth. Once users set up desired in-car temperature by temperature selector of HVAC control module, the controller in HVAC control module detects in-car temperature, outside air temperature, amount of sunlight, and engine coolant temperature by inside air temperature sensor (2), outside air temperature sensor (3), sunload sensor (4), and ECT sensor (5). Then, controller of HVAC control module keeps desired in-car temperature at any time.