The automobile air conditioner controller belongs to a control device for an automobile air conditioner.
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Automotive air conditioning controller introduction:
The automotive air conditioner controller is conventionally equipped with an LCD display, which requires a fan PWM control and has a fault display function. In the conventional design, the electronic switch is used to replace the traditional relay, which can improve the reliability of the circuit. The serial shift technology is used to solve the keyboard scanning problem, which simplifies the circuit. Combined with the intelligent control and other circuits of the MCU, the control signals are subtly converted into mechanical actions to ensure the temperature regulation inside the vehicle and the operation of the instant defrosting terminal actuator.
Block diagram:
There are many ways to design the car air conditioner controller. Next, we will introduce you to the design scheme of the car air conditioner controller based on single chip microcomputer.
This design is based on the software and hardware design of the PIC16F917 automotive air conditioning controller. The controller has the characteristics of simple operation, good display interface and strong anti-interference.
The system circuit mainly has buttons, interior and exterior, evaporator temperature acquisition, blower drive, compressor and electrical control, LCD display, fresh air damper drive, temperature mixing damper drive, mode damper drive, temperature hybrid damper drive, etc. And the microcontroller. The system frame diagram of the automotive air conditioning controller is as follows:
The system can work in either automatic or manual control mode. In order to facilitate everyone to read better, we provide a download of the design of the vehicle controller based on single-chip microcomputer.
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