Toyota Highlander 2006 User Manual

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High Voltage Safety
The HV battery pack powers the high voltage electrical system with
DC electricity. Positive and negative high voltage power cables are
routed from the battery pack, under the vehicle floor pan, to the
inverter/converter. The inverter/converter contains a circuit that boosts
the HV battery voltage from 288 to 650-Volts DC. The inverter creates
3-phase AC to power the motors. A set of 3 power cables is routed
from the inverter to each high voltage motor (electric motor, electric
generator, A/C compressor, and optional 4WD-i rear motor).
Occupants in the vehicle and emergency responders are separated from
high voltage electricity by the following system:
High Voltage Safety System
• A high voltage fuse  provides short circuit protection in the HV battery
pack.
• Positive and negative high voltage power cables  connected to the HV
battery pack are controlled by 12-Volt normally open relays . When the
vehicle is shut off, the relays stop electricity flow from the HV battery
pack.
WARNING:
High voltage electricity can cause death or serious injury from
severe burns or electric shock. To avoid death or serious injury
wait 5 minutes after disabling the vehicle to discharge high voltage
electricity, and do not touch, cut, or open any orange high voltage
power cable or high voltage component.
• Both positive and negative power cables  are isolated from the metal
chassis, so there is no possibility of shock by touching the metal chassis.
• A ground fault monitor  continuously monitors for high voltage leakage
to the metal chassis while the vehicle is running. If a malfunction is
detected, the vehicle computer  will illuminate the master warning light
in the instrument cluster and indicate “CHECK HYBRID SYSTEM”
on the Multi-information Display.
• The HV battery pack relays will automatically open to stop electricity
flow in a collision sufficient to activate the SRS.
High Voltage Safety System – Vehicle Shut Off (READY-off)
High Voltage Safety System – Vehicle On and Operational (READY-on)



 
12-Volt
Battery
Electric
Motor
Inverter
Boost
Converter
Hybrid
ECU
Electric
Motor
(
Rear
)
0.0
Volt
HV Battery Pack
HV Battery Module
HV Battery Pack
HV Battery Module
Electric
Motor
12-Volt
Battery
Inverter
650
Volt
288
Volt
Boost
Converter
288
Volt
Hybrid
ECU
Electric
Motor
(Rear)

Toyota Highlander 2006 Specifications

General

Brand	Toyota
Model	Highlander 2006
Category	Automobile
Language	English