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High Voltage Safety (2012 Model)
The HV battery assembly powers the high voltage electrical system with DC electricity. Positive and
negative orange colored high voltage power cables are routed from the HV battery assembly, under the
vehicle floor pan, to the inverter/converter. The inverter/converter contains a circuit that boosts the HV
battery voltage from 207.2 to 650 Volts DC. The inverter/converter creates 3-phase AC to power the
motor. Power cables are routed from the inverter/converter to each high voltage motor (electric motor,
electric generator, and A/C compressor). The following systems are intended to help keep occupants in
the vehicle and emergency responders safe from high voltage electricity:
High Voltage Safety System
•
A high voltage fuse
•
Positive and negative high voltage power cables
by 12 Volt normally open relays
from leaving the HV battery pack.
WARNING:
The high voltage system may remain powered for up to 10
minutes after the vehicle is shut off or disabled. To prevent
serious injury or death from severe burns or electric shock,
avoid touching, cutting, or opening any orange high voltage
power cable or high voltage component.
•
Both positive and negative power cables
possibility of electric shock when 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 hybrid vehicle computer
master warning light
the multi-information display.
•
The HV battery pack relays will automatically open to stop electricity flow in a collision sufficient to
activate the SRS.
*Numbers apply to the illustration on the following page.
* provides short circuit protection in the HV battery pack.
*. When the vehicle is shut off, the relays stop electricity flow
* are insulated from the metal chassis, so there is no
in the instrument cluster and indicate "CHECK HYBRID SYSTEM" on
* connected to the HV battery pack are controlled
46
* will illuminate the
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