Mazda 2009 RX-8, Особенности сервиса

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CONTROL SYSTEM [FULL-AUTO AIR CONDITIONER]
07-40–10
Correction
Air mix actuator stop position correction
x
The A/C amplifier maintains the actuator at the stop position calculated based on the position signal from the
potentiometer inside the air mix actuator.
MAX HOT and MAX COLD correction
x
When the set temperature is at 32.0 , the air mix actuator becomes MAX HOT, when it is at 18.0 , it becomes
MAX COLD.
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NG: AIRFLOW VOLUME CONTROL
AIRFLOW VOLUME CONTROL OUTLINE [FULL-AUTO AIR CONDITIONER]
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Features
x
The airflow volume control includes the airflow volume automatic and manual controls, and the A/C amplifier
controls the power transistor to adjust the blower air volume.
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AIRFLOW VOLUME CONTROL SYSTEM DIAGRAM [FULL-AUTO AIR CONDITIONER]
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AIRFLOW VOLUME CONTROL OPERATION [FULL-AUTO AIR CONDITIONER]
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Order of Priority for Controls
1. Blower motor correction at start
2. Airflow volume manual control
3. MAX HOT and MAX COLD correction
4. Airflow volume automatic control
-3 3 -4 4
/
(%)
A/C AMPLIFIER
POSITION
SIGNAL
AIR MIX ACTUATOR
AIR MIX A
CTU
AT
OR
OPERATING
STOPPED
TARGET OPENING ANGLE — ACTUAL OPENING ANGLE
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FAN SWITCH
SET
TEMPERATURE
EVAPORATOR
TEMPERATURE
AIRFLOW
MODE
AMBIENT
TEMPERATURE
CABIN
TEMPERATURE
SOLAR RADIATION
AMOUNT
ENGINE
COOLANT
TEMPERATURE
ECT
SENSOR
SIGNAL
A/C
AMPLIFIER
OUTPUT
FEEDBACK
POWER
TRANSISTOR
BLOWER
MOTOR
OPERATION
AIRFLOW
VOLUME
CHANGE
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