AIR CONDITIONING SYSTEM


  1. CONSTRUCTION


    1. Individual servo motors are used for the fresh/recirculation damper, the mode switching damper, the driver side and front passenger side air mix control dampers and rear mode switching damper.

    2. A pulse pattern type servo motor that controls by communicating over the bus wire with the air conditioning amplifier assembly is used for each servo motor. Along with using pulse pattern type servo motors, smart connectors contain ICs that have such functions as communicating with the air conditioning amplifier assembly.

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      *1 No. 1 Blower Damper Servo Sub-assembly (Fresh/Recirculation Damper) *2 No. 1 Air Conditioning Radiator Damper Servo Sub-assembly (for Mode Switching)
      *3 No. 3 Air Conditioning Radiator Damper Servo Sub-assembly (for Passenger Side Air Mix) *4 No. 2 Air Conditioning Radiator Damper Servo Sub-assembly (for Driver Side Air Mix)

    3. Pulse Pattern Type Servo Motor


      1. In contrast to the previous type that detects the position by way of a potentiometer voltage, the pulse pattern type servo motor detects the relative position by way of the 2-bit on/off signals

      2. The forward and reverse revolutions of this motor are detected by way of 2 phases, A and B, which output 4 types of patterns. The air conditioning amplifier assembly counts the number of pulse patterns in order to determine the stopped position.

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