AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System) SYSTEM DESCRIPTION


  1. GENERAL

    The air conditioning system has the following controls:

    Control Outline
    Neural Network Control This control is capable of effecting complex control by artificially simulating the information processing method of the nervous system of living organisms in order to establish a complex input or output relationship that is similar to a human brain.
    Outlet Air Temperature Control In compliance with the temperature set at the temperature control switch, the neural network control calculates the outlet temperature based on the input signals from various sensors. In addition, corrections in accordance with the signals from the evaporative temperature sensor and water temperature sensor are added to control the outlet air temperature.
    Blower Control Controls the blower motor in accordance with the airflow volume that has been calculated by the neural network control based on the input signals from various sensors.
    Air Outlet Control Automatically switches the outlets in accordance with the outlet mode ratio that has been calculated by the neural network control based on the input signals from various sensors.
    Air Inlet Control Automatically controls the air inlet control damper in accordance with the airflow volume that has been calculated by the neural network control.
    Variable Capacity Compressor Control Through the calculation of the target evaporator temperature based on various sensor signals, the air conditioning amplifier optimally controls the discharge capacity by regulating the opening extent of the cooler compressor solenoid control valve.
    PTC Heater Control*

    When the ignition switch is turned ON, and the blower motor is turned on, the air conditioning amplifier turns on the PTC heater assembly if the conditions listed below are met.


    • Engine coolant temperature is below specified temperature.

    • Ambient temperature is below specified temperature.

    • Tentative air mix damper opening angle is above the specified value (MAX HOT).

    *: w/ PTC heater

  2. MODE POSITION AND DAMPER OPERATION

    A0117MJE02
    Control Damper Operation Position Damper Position Operation
    Air Inlet Control Damper FRESH A Brings in fresh air.
    RECIRC B Recirculates internal air.
    Air Mix Control Damper MAX COLD - MAX HOT C, D Varies the mixture ratio of the fresh air and the recirculation air in order to regulate the temperature continuously from HOT to COLD.
    Mode Control Damper

    DEF

    A0118Z8     		G, I Defrosts the windshield through the center defroster, side defroster, and side register.

    FOOT / DEF

    A0118ZZ     		F, I Defrosts the windshield through the front defroster, side defroster and side register, while air is also blown out from the footwell register duct and rear footwell register duct*.

    FOOT

    A011BNW     		E, I Air blows out of the footwell register duct, rear footwell register duct*, and side register. In addition, air blows out slightly from the front defroster and side defroster.

    BI-LEVEL

    A0118D1     		F, H Air blows out of the center register, side register, footwell register and rear footwell register duct*.

    FACE

    A0119QP     		G, H Air blows out of the center register and side register.

    *: for Cold area specification vehicles

  3. AIR OUTLETS AND AIRFLOW VOLUME

    A0117LSE01
    Operation Position FACE FOOT DEFROSTER
    Center Side Front Rear*
    A B C D E
    A0119QP

    FACE

    		 A011BXS A011BXS A011AOX A011AOX A011AOX
    A0118D1

    BI-LEVEL

    		 A0119TN A0119TN A0118F8 A0118F8 A011AOX
    A011BNW

    FOOT

    		 A011AOX A0119NI A0118F8 A0118F8 A0119NI
    A0118ZZ

    FOOT/DEF

    		 A011AOX A0119NI A0119TN A0119TN A0119NI
    A0118Z8

    DEF

    		 A011AOX A0119TN A011AOX A011AOX A011BXS

    The size of the circle ○ indicates the proportion of airflow volume.

    *: for Cold area specification vehicles