Vehicle air conditioner automatic control system

The utility model discloses a vehicle air conditioner automatic control system, including ECU, evaporimeter temperature sensor, car amount of wind knob and air-blower, evaporimeter temperature sensor is used for the temperature of real-time detection evaporimeter, and its signal output part connects ECU's input, and the signal output part of car amount of wind knob connects ECU's input, and ECU's output is connected and is controlled air-blower work, still be equipped with voltage sensor, voltage sensor detects the voltage of air-blower to input ECU with the magnitude of voltage, the relay of ECU's output connection control air-blower detects air-blower voltage signal as voltage sensor and be at 0 o'clock, and the relay breaks off, the control system stop work. The utility model discloses whether simple structure, increase feedback circuit, real-time supervision air-blower exist fuse disconnection phenomenon, in time stop system's work phenomenon of acquiescence, avoid appearing the phenomenon of frosting.