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Lexus Hybrid Drive Component Locations & Descriptions
Component
Location
Description
12 Volt
Auxiliary
Battery
Cargo Area
A lead-acid battery that supplies power to
the low voltage devices.
Hybrid
Vehicle (HV)
Battery Pack
Cabin Area,
Mounted to Cross
Member under
Rear Seat
288 Volt Nickel Metal Hydride (NiMH)
battery pack consisting of 30 low voltage
(9.6 Volt) modules connected in series.
Power
Cables
Undercarriage
and Engine
Compartment
Orange colored power cables carry high
voltage Direct Current (DC) between the
HV battery pack, inverter/converter, and
A/C compressor. These cables also carry 3-
phase Alternating Current (AC) between the
inverter/converter, electric motors, 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
motors. The inverter/converter also
converts AC electricity from the electric
generator and electric motors (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. It is used to power the front
wheels.
Electric
Generator
Engine
Compartment
3-phase high voltage AC generator that is
contained in the transaxle and recharges the
HV battery pack.
Lexus Hybrid Drive Components
Components (Top View) and High Voltage Power Cables
