Lexus Hybrid Drive Component Locations & Descriptions - Lexus GS450h Manual

Lexus Hybrid Drive Component Locations & Descriptions
Component Location
12 Volt Driver Side of A lead-acid battery that supplies power to
Auxiliary Trunk the low voltage devices.
Battery
Hybrid Trunk Area, 288 Volt Nickel Metal Hydride (NiMH)
Vehicle (HV) Mounted behind battery pack consisting of 40 low voltage
Battery Pack Rear Seat (7.2 Volt) modules connected in series.
Power Undercarriage Orange colored power cables carry high
Cables and Engine
voltage Direct Current (DC) between
Compartment
the HV battery pack, inverter/converter,
and A/C compressor. These cables also
carry 3-phase Alternating Current (AC)
between the inverter/converter, electric
motor, and generator.
Inverter/ Engine Boosts and inverts the high voltage
Converter Compartment 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 electric motor (regenerative braking) to
DC that recharges the HV battery pack.
Gasoline Engine Provides two functions:
Engine Compartment 1) Powers vehicle.
2) Powers generator to recharge the HV
battery pack.
The engine is started and stopped under
control of the vehicle computer.
Electric Transmission 3-phase high voltage AC permanent
Motor
magnet electric motor contained in the
transmission and drives the rear wheels
through the propeller shaft.
Electric Transmission
3-phase high voltage AC generator that
Generator
is contained in the transmission and
recharges the HV battery pack.
Description
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Lexus Hybrid Drive Components
Components (Top View) and High Voltage Power Cables