AIR CONDITIONING SYSTEM


  1. CONSTRUCTION


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

    2. A pulse pattern type servo motor that performs control by communicating with the air conditioning amplifier assembly over the bus lines 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.

    3. The installation positions for the servo motors are on the side of the blower assembly for the fresh/recirculation damper servo motor, and on the side of the air conditioning unit assembly for the air conditioning radiator damper servo sub-assembly.

      A004DE5C01
      *1

      No. 3 Air Conditioning Radiator Damper Servo Sub-assembly


      • Damper Servo (for FACE Door)

      • Damper Servo (for FOOT Door)

      		 *2

      No. 1 Air Conditioning Radiator Damper Servo Sub-assembly


      • Damper Servo (for Driver Side Upper Layer Air Mix Door)

      • Damper Servo (for Driver Side Lower Layer Air Mix Door)
      *3

      No. 2 Air Conditioning Radiator Damper Servo Sub-assembly


      • Damper Servo (for Passenger Side Upper Layer Air Mix Door)

      • Damper Servo (for Passenger Side Lower Layer Air Mix Door)

      		 *4 No. 1 Blower Damper Servo sub-assembly (for Fresh/Recirculation Damper)
      *5 No. 4 Air Conditioning Radiator Damper Servo Sub-assembly (for DEF Door) - -

    4. 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.

        A004DWGE01