Toyota AVALON HYBRID 2013 - Hybrid Synergy Drive Component Locations & Descriptions

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Hybrid Synergy Drive Component Locations &
Descriptions
Component Location Description
12 Volt
Auxiliary
Battery n
Passenger 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
244.8 Volt Nickel Metal Hydride (NiMH)
battery pack consisting of 34 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.
DC-DC
Converter
for 12 Volt
Auxiliary
Battery r
Inverter/
Converter
Converts 244.8 Volts from the HV battery
pack to 12 Volts for low voltage vehicle
power.
Gasoline
Engine s
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 t
Engine
Compartment
3-phase high voltage AC motor contained
in the transaxle. It is used to power the front
wheels.
Hybrid Synergy Drive Components
Components (Top View) and High Voltage Power Cables
n
o
p
u
q
v
s
t
r
n
o
p
q
r
s
t
u
v