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Hybrid Synergy Drive Component Locations & Descriptions
Component Location Description
12-Volt
Auxiliary
Battery
Engine
Compartment
Lead-acid battery powers all low voltage
electrical equipment.
Hybrid
Vehicle
(HV) Battery
Pack
Cabin Area,
Mounted to Cross
Member located
Under Second
Row Seat
288-Volt Nickel Metal Hydride (NiMH)
battery pack consisting of 30 low voltage (9.6-
volt) modules connected in series.
Power
Cables
Under Carriage
and Engine
Compartment
Orange colored power cables carry high
voltage Direct Current (DC) between the HV
battery pack, inverter/converter, and A/C
compressor. Also carries 3-phase Alternating
Current (AC) between inverter/converter,
motor, and generator.
Inverter/
Converter
Engine
Compartment
Boosts and inverts the high voltage electricity
from the HV battery pack to 3-phase AC
electricity that drives the electric motor. The
inverter/converter also converts AC electricity
from the electric generator and motor
(regenerative braking) to DC that recharges the
HV battery pack.
Gasoline
Engine
Engine
Compartment
Provides two functions: 1) powers vehicle; 2)
powers generator to recharge the HV battery
pack. The engine is started and stopped under
control of the vehicle computer.
Front
Electric
Motor
Engine
Compartment
3-phase high voltage AC permanent magnet
electric motor contained in the front transaxle.
Used to power the front wheels.
Electric
Generator
Engine
Compartment
3-phase high voltage AC generator contained
in the front transaxle. Used to recharge the HV
battery pack.
A/C
Compressor
Engine
Compartment
3-phase high voltage AC electrically driven
motor compressor.
Hybrid Synergy Drive Components
*4WD-i models only
Components (Top View) and High Voltage Power Cables
11
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