System Description

INTAKE DOOR CONTROL SYSTEM

WITH ACCS : System Description

The intake door is automatically controlled by the ambient atmospheric CO, NO-2 and unpleasant odor, temperature setting, ambient temperature, in-vehicle temperature, intake temperature, amount of sunload and
ON/OFF operation of the compressor.

SYSTEM OPERATION

The intake door control judges intake door position based on the ambient atmospheric CO, NO-2 and unpleasant odor, ambient temperature, the intake air temperature and the in-vehicle temperature. When DEF or OFF
switch is pressed, the unified meter and A/C amp. sets the intake door at the FRE position.
Door Motor Circuit





Intake Door Control Specification





- Intake door position is basically fixed at FRE when FRE indicator of intake switch is OFF or DEF switch is ON.
- Intake door position is basically fixed at REC when REC indicator of intake switch is ON.
- Intake door automatic control selects FRE, 20 - 80%FRE, or REC
depending on a target air mix door opening angle, based on in-vehicle temperature, ambient temperature, and sunload.
Automatic intake control (exhaust gas/outside odor detecting mechanism)
- In addition to air inlet automatic control of automatic air conditioning system, unified meter and A/C amp.
controls automatically air inlet according to signal from exhaust gas/outside odor detecting sensor, so that unpleasant outside odor does not enter in passenger room.
- When AUTO switch is pressed, AUTO intake indicator and REC indicator turn ON. Air inlet is fixed to recirculation for approximately 5 minutes, and then is switched to automatic intake control (exhaust gas/outside odor detecting mechanism).
- Air inlet switches to recirculation when exhaust gas or outside odor is detected while automatic intake control (exhaust gas/outside odor detecting mechanism) is operated. After that, air inlet switches to fresh air intake when exhaust gas or outside odor becomes not detectable.
NOTE:
- Sensitivity of exhaust gas/outside odor detecting sensor can be changed. Refer to {LINK_TO_MANY:0000000007514045}{LINK_TO_MANY:0000000007514046}, "WITH ACCS :
Exhaust exhaust gas/outside odor detecting/Outside Odor Detecting Sensor Sensitivity Adjustment Function".
- Automatic intake control (exhaust gas/outside odor detecting mechanism) does not operate when ambient temperature is 2�
C (28�F) or less. In this case, control is only for control of automatic air inlet of automatic air conditioning system.