Hybrid Component Locations & Descriptions - Lexus RX 400h MHU33 Series Manual

Hybrid Component Locations & Descriptions
Component Location
12-Volt Engine Compartment
Auxiliary
Battery n
Hybrid Cabin Area, Mounted to
Vehicle (HV) Cross
Battery Pack Under Rear Seat
o
Power Cables Under
p
Engine Compartment
Inverter/ Engine Compartment
Converter q
Gasoline Engine Compartment
Engine r
Front Electric Engine Compartment
Motor s
Electric Engine Compartment
Generator t
A/C Engine Compartment
Compressoru
EPS DC-DC Underneath the cargo
Converter v
area by the spare tire
Fuel Tank and Undercarriage,
Fuel Lines w
Side
Rear Electric Rear Sub-Frame
Motor
(4WD Model
♦
Only)
Lead-acid battery powers all low voltage electrical equipment except
electric motor, generator, inverter/converter, A/C compressor, and electric
power steering.
288-Volt Nickel Metal Hydride (NiMH) battery pack consisting of 30 low
Member and voltage (9.6-volt) modules connected in series.
Carriage and Orange and yellow colored power cables carry high voltage Direct
Current (DC) between the HV battery pack and inverter/converter. Also
carries 3-phase Alternating Current (AC) between inverter/converter,
motor, generator, and A/C compressor.
Boosts and inverts the high voltage electricity from the HV battery pack
to 3-phase AC electricity that drives the electric motor.
inverter/converter also converts AC electricity from the electric generator
and motor (regenerative braking) to DC that recharges the HV battery
pack.
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.
3-phase high voltage AC permanent magnet electric motor contained in
the front transaxle. Used to power the front wheels.
3-phase high voltage AC generator contained in the front transaxle. Used
to recharge the HV battery pack.
3-phase high voltage AC electrically driven motor compressor.
Converts 288Volts from the HV battery pack to 42Volts. Yellow-colored
wires conduct the 42-Volt power underneath the vehicle floor pan to the
power steering rack via the EPS ECU, located in the engine compartment.
Driver Fuel tank provides gasoline via a single fuel line to the engine. The fuel
line is routed along driver side under the floor pan.
3-phase high voltage AC permanent magnet electric motor contained in
the rear transaxle used to power the rear wheels.
Description
6
The