Generally include servo motors, blowers, compressor electromagnetic clutches and so on.
1. Intake servo motor. Control the air intake mode.
2. Air mixing servo motor. When the driver performs temperature control, the air conditioning control unit first calculates the required air outlet temperature according to the set temperature and the signals sent by the sensors, and controls the air mixing servo motor connecting rod to rotate clockwise or counterclockwise to change the air mixing The opening angle of the air door changes the mixing ratio of cold and warm air and adjusts the air temperature to match the calculated value.
3. Servo motor in air outlet mode. Also known as air flow servo motor. When the driver manipulates a certain air outlet mode key on the panel, the corresponding terminal on the motor of the air conditioning control unit is grounded, and the drive circuit in the motor rotates the motor connecting rod accordingly to turn the air supply control damper to the corresponding position. Open an air supply channel.
4. The coldest control servo motor. The air door of the coldest control servo motor has three positions: fully open, center open, and fully closed. When the air conditioning control unit grounds the terminal at a certain position, the motor drive circuit rotates the motor, driving the coldest control damper to the corresponding position.
Basic working mode: sensor (detection signal) → air conditioning amplifier (air conditioning control unit) → control actuator.
The automobile automatic air-conditioning system detects some information in the car's work through various sensors, and transmits this information to the air-conditioning generator with corresponding physical quantities (resistance, current, voltage, etc.). After analysis, comparison, and calculation, it is processed, Then the actuator completes its corresponding work.
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