System Description

SYSTEM

System Description

- Front automatic air conditioning system is controlled by each function of A/C auto amp., ECM, IPDM E/R
and BCM.
-"Air Flow Control" Air Flow Control
-"Air Inlet Control" Air Inlet Control
-"Air Outlet Control" Air Outlet Control
-"Compressor Control" Compressor Control
-"Door Control" Door Control
-"Temperature Control" Temperature Control
- Correction for input value of each sensor
- A/C auto amp. controls passenger room temperature so that the optimum level always matches the temperature level that the passenger may feel. Correction is applied to the target temperature that is set using temperature control dial, according to ambient temperature detected by ambient sensor.
- Passenger room temperature detected by in-vehicle sensor is corrected for each front air conditioning control (driver side and passenger side).
- A/C auto amp. performs correction to change recognition intake temperature of A/C auto amp. quickly when difference is large between recognition intake temperature and intake temperature detected by intake temperature sensor. The correction is performed to change recognition intake temperature slowly when difference is small.
- Sunload amount detected by sunload sensor is corrected for each air conditioning control.
- A/C auto amp. performs correction to change recognition sunload amount of A/C auto amp. slowly when sunload amount changes quickly, for example when entering or exiting a tunnel.
- Cooling fan control
Refer to "COOLING FAN CONTROL : System Description (with automatic air conditioner)" System Description (With Automatic Air Conditioner)
(QR25DE) or "COOLING FAN CONTROL : System Description" (VQ35DE).
- Air conditioning cut control
Refer to "COOLING FAN CONTROL : System Description (with automatic air conditioner)" System Description (With Automatic Air Conditioner)
(QR25DE) or "AIR CONDITIONING CUT CONTROL : System Description" (VQ35DE).
- Relay control
Refer to "RELAY CONTROL SYSTEM : System Description" System Description.
- Cooling fan control
Refer to "COOLING FAN CONTROL : System Description (with automatic air conditioner)" System Description (With Automatic Air Conditioner)
(QR25DE) or "COOLING FAN CONTROL : System Description" (VQ35DE).
- Relay control
Refer to "BODY CONTROL SYSTEM : System Description" Body Control System.