Lexus KMA10 Series, Dismantling Manual

Page: 10 / 35

6
Electric Vehicle Component Locations & Descriptions
Component* Location Description
12 Volt Auxiliary
Battery

Driver Side of
Motor
Compartment A lead-acid battery that supplies power to the low voltage
devices.
Traction Battery
Assembly

Undercarriage Supplies electrical power to inverter with converter
assembly in accordance with the driving conditions of the
vehicle.
Recharged by electric motor in accordance with the SOC
and the driving conditions of the vehicle.
Accumulates power from the external power source
supplied by plug-in charging.
Power Cables

Undercarriage and
Motor
Compartment
The power cables (HV floor under wire, HV air
conditioning wire, HV battery charger wire, AC charger
inlet cable, DC charger inlet cable, motor cable) are set
of high-voltage, high-amperage cables that connect the
traction battery assembly with the inverter with converter
assembly, the inverter with converter assembly with the
electric motor, and the inverter with converter assembly
with the compressor with motor assembly.
Inverter with
Converter
Assembly

Motor
Compartment Converts the direct current from the traction battery
assembly into alternating current for electric motor, and
vice versa (from AC to DC).
DC/DC
Converter for
12 Volt
Auxiliary
Battery

Inverter with
Converter
Assembly Steps down the traction battery nominal voltage of DC
355.2 V to approximately DC 14 V in order to supply
electricity to the electrical components, as well as to
recharge the auxiliary battery.
Electric Motor

Motor
Compartment Drives by electrical power from the traction battery
assembly, generates motive force for the drive wheels.
Generates high-voltage electricity to recharge the traction
battery, during braking, or when the accelerator pedal is
released.
Compressor with
Motor Assembly

Motor
Compartment Transmits and receives data between the switches and
sensors.
*Numbers in the component column apply to the illustrations on the following page.