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Lexus Hybrid Drive Component Locations & Descriptions
Component
Location
Description
12 Volt
Auxiliary
Battery
n
Driver Side of
Trunk
A lead-acid battery that supplies power to
the low voltage devices.
Hybrid
Vehicle (HV)
Battery Pack
o
Trunk Area,
Mounted behind
Rear Seat
288 Volt Nickel Metal Hydride (NiMH)
battery pack consisting of 40 low voltage
(7.2 Volt) modules connected in series.
Power
Cables
p
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
motor, and generator.
Inverter/
Converter
q
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 electric motor (regenerative braking) to
DC that recharges the HV battery pack.
Gasoline
Engine
r
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.
Electric
Motor
s
Transmission
3-phase high voltage AC permanent
magnet electric motor contained in the
transmission and drives the rear wheels
through the propeller shaft.
Electric
Generator
t
Transmission
3-phase high voltage AC generator that
is contained in the transmission and
recharges the HV battery pack.
Lexus Hybrid Drive Components
Components (Top View) and High Voltage Power Cables
