Toyota Camry Hybrid AHV40 Manual page 32

TH-32
HV Battery and DC/DC Converter Cooling System
1) HV Battery Cooling System
D A dedicated cooling system is used to ensure that the HV battery performs properly, despite it
generating significant heat during the repetitive charge and discharge cycles.
This cooling system employs an air-cooling method, which uses the dedicated cooling fan to cool the
HV battery with air from inside the cabin.
D The air from inside the cabin, which is introduced through the intake duct located on the rear package
tray trim, flows downwards through the battery module, reducing the temperature of the battery
module, and is emitted from the vehicle through the exhaust duct.
D The THS ECU controls the operation of the cooling fan for the HV battery. The THS ECU receives
the signals from the battery temperature sensor, which is built into the HV battery, via the battery smart
unit. Then, it controls the cooling fan in order to control the battery module temperature appropriately.
For details, refer to THS ECU Control on page TH-40.
Cooling Fan
Exhaust Duct
Cooling Fan
"
HV Battery Cooling Fan Specifications
Fan Type
Motor Type
THS II (TOYOTA HYBRID SYSTEM II)
Intake Duct
HV Battery
Module
Rear View Cross Section
A
Sirocco Fan
DC Motor (without Brush)
The Flow of Air
The Flow of Air
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