Page 9 of 42
1-3 Warning and Indicator Lamp Information
1. READY Indicator (Green) 2. HV System Overheat Warning (Dot Matrix Liquid
Crystal Display)
3. Master Warning Lamp (Orange or Red) 4. Hybrid System Warning Lamp (Orange)Lamp Name
Icon Description
READ
Y Indicator
(Green) This lamp is on when the high voltage system is powered up
and
the vehicle is ready to drive.
Master Warning Lamp
(Orange or Red) This lamp is on when another warning lamp or message is
displayed
in the instrument cluster.
Hybrid System
Warning Lamp
(Orange) This lamp is on or blinking when:
•
Malfunction has occurred in the hybrid control system
and/or
• High voltage leak to vehicle chassis and/or
• Emergency shut-off system has been activated. The shut- off system activates in the following conditions:
– Front and side collisions in which the air bags are deployed.
– Certain rear collisions.
– Certain high voltage system malfunctions. AAYIA0010GB
FRG–9
Page 10 of 42
2. Basic High Voltage System and 12-Volt System Information
2-1
Battery Information
The Q70 HYBRID utilizes two batteries in order to supply both high and low voltage.
2-1.1 12-volt Battery • The Q70 HYBRID contains a conventional lead-acid12-volt battery.
• The 12-volt battery is located in the trunk, left of high voltage battery, concealed by trim cover.
• The 12-volt battery is charged by the high voltage battery through the DC/DC converter.
2-1.2 High Voltage Battery • The Q70 HYBRID contains a high voltage battery.
• The high voltage battery is mounted in the trunk areabehind the rear seat, enclosed in a metal case and
concealed by trim cover.
• The high voltage battery stores approximately 346 volts DC (400V max.) .
• A vent hose is provided to exhaust gasses outside the vehicle if necessary.
• An air vent is located on the rear parcel shelf for battery cooling.
The high voltage battery supplies power to the following: • High voltage harnesses
• DC/DC converter
• Traction motor inverter
• Traction motor
• Electric air conditioner compressor AAYIA0064ZZ
AAYIA0065ZZ
AAYIA0066ZZ
FRG–10
Page 11 of 42
2-2 High Voltage-Related and 12-Volt-Related Component Locations and
Descriptions
NO
TE:
Components with white number in black background are high voltage components. No. Component
Location Description
High
Voltage
Battery Trunk area (behind
rear seat back) The high voltage battery stores and outputs DC
power (Maximum voltage 400V) needed to pro-
pel the vehicle.
DC/DC Converter Trunk area
(mounted to top of
high voltage bat-
tery) The DC/DC converter reduces the voltage of
the high voltage battery to provide power to the
12-volt battery in order to operate the vehicle’s
electric components (headlights, audio system,
etc.) . AAYIA0338ZZ
FRG–11
Page 12 of 42
No. Component
Location Description
Service
Plug Trunk area (belowparcel shelf;
behind access
door in trim panel) This is used to disable the high voltage system.
12-volt Battery Trunk area (below
parcel shelf;
behind trim panel
left of high voltage
battery) A lead-acid battery that supplies power to the
low voltage devices.
High Voltage
Harnesses Trunk area (on high
voltage battery) ,
under floor pan,
engine compart-
ment Orange-colored power cables carry high DC
voltage between each of the high voltage
components.
Electric Air Condi-
tioner Compressor Engine compart-
ment (front driver
side) Air conditioner compressor
Traction Motor
Inverter Engine compart-
ment (right rear
side) Converts the DC power stored in the high volt-
age battery to three-phase AC power and con-
trols motor torque (revolution) by regulating the
motor current. The inverter has a built in high
voltage capacitor.
Traction Motor Built-into the
transmission Converts three-phase alternating current (AC)
power to drive power (torque) which propels the
vehicle.
2-3 High Voltage Battery Pack Specifications High Voltage Battery Specifications
High
voltage battery voltage 346V (400V max.)
Number of high voltage battery modules in the pack 12
High voltage battery module voltage 28.8V each
High voltage battery dimensions 33.35 x 17.83 x 15.43 in. (847 x 453 x 392 mm)
High voltage battery weight 121.28 lbs (55 kg)
FRG–12
Page 13 of 42
2-4 High Voltage Safety Measures
Circuit insulation
The high voltage positive (+) and negative (-) circuits are insulated
from the metal chassis.
Reducing the risk of electrocution The high voltage components and harnesses have insulated cases or orange-colored coverings which provide insulation and easy
identification.
The high voltage battery case is electrically connected to the vehicle
ground. This connection helps protect the vehicle occupants and
emergency responders from high voltage electrical shock.
Identification The high voltage components are labeled “WARNING” similar to the
label shown below. All high voltage harnesses are coated in orange.
2-4.1 Warning Labels To avoid serious injury, keep clear of engine parts at all times. Engine\
may start at any time if
t
he start switch and the READY lamps on the instrument panel are "ON". Make sure both
lamps are "OFF" before working in the engine compartment. See Owners Man\
ual. ¾¯¸æ/WARNING/AVERTISSEMENT ÖØ ´ó
ÏûµÆ
Pour éviter des blessures graves, assurez-vous que les témoins STA\
RT SWITCH et READY
d
ans le tableau de bord sont éteints (OFF) avant d' entreprendre tout travail a l' intérieur du
compartiment moteur. Le moteur peut démarrer a tout moment si le contacteur d' allumage
est a la position ON et que les témoins READY du tableau de bord sont allumés. Assurez-vous
que les deux témonins sont éteints avant de travailler dans le com\
partiment moteur.
Reportez-vous au manuel du conducteur. ÉË º¦
¶¯³ö
Ïê ÀÀ
¸º
×÷ Òµ ʱ
È· ÈÏ ×Ô ¶¯ µÄʼ ¶¯ READY
A
AAYIA0410ZZ AAYIA0010ZZ
FRG–13
Page 14 of 42
2-5 High Voltage Safety System
The
high voltage safety system is intended to help keep vehicle occupants and emergency responders safe
from high voltage electricity. • A high voltage fuse provides short circuit protection inside the high voltage battery.
• The high voltage safety system is insulated from the metal chassis.
• Positive and negative high voltage power cables are connected to the high voltage battery and arecontrolled by normally open system main relays (SMR1 and SMR2) . When the vehicle is shut off,
the relays stop electrical flow from leaving the high voltage battery. However, it can take
approximately ten (10) minutes for the high voltage capacitor to fully discharge. • The high voltage system and high voltage capacitor may remain powered for up to
approximately
10 minutes after the vehicle is shut off. Personal Protective Equipment
(PPE) must always be worn when touching or working on high voltage components
to avoid risk of electrical shock and severe personal injury or death.
• The high voltage battery retains high voltage at all times. PPE must always be worn when touching or working on high voltage components to avoid risk of electrical shock and
severe personal injury or death.
• 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 HPCM (hybrid powertrain control module) will
illuminate the hybrid system warning lamp in the instrument cluster.
•
The high voltage battery relays (SMR1 and SMR2) will automatically open to stop the electrical flow
in a front, side or certain rear collisions that are sufficient enough to activate the supplemental
restraint system (SRS) . Trunk
J
unction Box High Voltage Battery
System main relay 1
Service Plug (With Fuse)
System main relay 2
Transmission
Traction Motor Traction Motor
Inverter
(With built in high
voltage capacitor) Electric
Compressor DC/DC
Converter
Engine Compartment
HPCM
(Hybrid Powertrain Control Module)
AAYIA0124GB
FRG–14
Page 15 of 42
2-6 High Voltage Circuit Shut-Off System
This
vehicle is equipped with a system to shut off the current from the high voltage battery by the following
methods: Service plug
Positioned in the center area of the high voltage battery, this plug shuts off
the
output of high voltage when manually removed.
System main relays
(located in the high
voltage battery) Controlled by the ignition switch, these relays are powered by the 12-volt
system and shut off high voltage from the high voltage battery.
Emergency shut-off
system In the case of a collision (air bag deployment, etc.) or certain system malfunc-
tions this system is designed to shut off the high voltage from the high volt-
age battery.
2-7 Preventing Electrical Shock 1. If it is necessary to touch any of the high voltage harnesses or components, always wearappropriate Personal Protective Equipment (PPE) [refer to 3-1 Preparation Items (FRG–17)].
Shut
off the high voltage system by referring to 3-3.1 High Voltage System Shut-Down
Procedure
(FRG–20) .
2.
To avoid the risk of electrocution, NEVER touch the inside of the high voltage battery with bare
hands after shutting off the high voltage system. The high voltage battery maintains charge even
though the high voltage system is shut down. PPE must always be worn when touching or
working on high voltage components.
3. Cover damaged high voltage components with insulated tape.
2-8 Emergency Medical Equipment
The high voltage system should not interfere with emergency medical equipment which must be used in or
near the vehicle at an accident scene.
FRG–15
Page 16 of 42
3. Emergency Response Steps
DANGER
• Failure to properly shut down the high voltage electrical system before the Emergency
Response Procedures are performed will result in serious injury or death from
electrical shock. To prevent serious injury or death, NEVER touch high voltage
harnesses or components with out always wearing appropriate Personal Protective
Equipment (PPE) . PPE must always be worn when touching or working on high
voltage components
• If it is necessary to touch any of the high voltage harnesses or components you must always wear appropriate PPE to avoid electrical shock. PPE must always be worn
when touching or working on high voltage components. Shut down the high voltage
system by following the steps outlined in 3-3.1 High Voltage System Shut-Down
Procedure
(FRG–20) Wait approximately ten (10) minutes for complete discharge of
the
high voltage capacitor after the high voltage system has been shut down. • NEVER assume the Q70 HYBRID is shut OFF simply because it is quiet.
• If the READY indicator is ON the high voltage system is active.
• If possible, be sure to check the READY indicator on the instrument cluster and
verify
that the READY indicator is OFF and the high voltage system is stopped.
FRG–16
