Chevrolet | 2013 Spark | Chevrolet Spark Electric Vehicle

Chevrolet Spark Electric Vehicle
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April 2013
© 2012 General Motors Company, All Rights Reserved
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Guide Purpose
The intent of this guide is to provide information to help you respond to emergency situations involving Chevrolet
Spark Electric Vehicle (EV) in the safest manner possible. This guide contains a general description of how the
Chevrolet Spark EV systems operate, identifies the location of the unique badging, and includes illustrations of the
unique components. The guide also describes methods of disabling the high voltage system and identifies cut zone
information.
The Chevrolet Spark EV is a fully electric, front-wheel drive, four-passenger vehicle. The Spark EV uses electrical
energy that is stored in a high voltage battery to drive a single electric motor. Once the battery capacity is reduced,
the vehicle must be recharged by an external energy source.
April 2013
© 2012 General Motors Company, All Rights Reserved
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Vehicle Identification
The Spark EV badging is one method
of identifying the vehicle. The
badging will include the acronym “EV”
which denotes Electric Vehicle. The
vehicle's logo is located on the right
side of the deck lid as well as low on
the rear bumper. You may also
identify the vehicle by the charge port
on the left fender.
April 2013
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Vehicle Identification (continued)
A unique Liquid Crystal Display (LCD) instrument panel cluster assists in identifying the Chevrolet Spark EV.
April 2013
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System Components
The Spark EV propulsion system is composed of the following
components and systems:
•
High voltage battery
•
Absorbent Glass Mat (AGM) low voltage battery (12V)
•
Power inverter module
•
Accessory power module
•
High voltage battery charger
•
High voltage battery DC charger
•
1ET35 Transmission
April 2013
© 2012 General Motors Company, All Rights Reserved
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High and Low Voltage Batteries
Drive Motor Battery
The high voltage battery, also known as the
drive motor battery, is a system of many
components that operate together to provide
the energy required for vehicle propulsion. The
energy storage cells are comprised of a lithiumphosphate compound and has a nominal
voltage level of 360 volts. High voltage
contactors, internal to the battery pack, turn on
and off to control the output of stored electrical
energy.
High Voltage Battery
Low Voltage Battery (12 Volt)
The Chevrolet Spark EV’s low voltage system (12V)
utilizes an Absorbent Glass Mat (AGM) lead acid
battery. The battery is located under the hood towards
the left side. The low voltage energy is utilized by
vehicle modules to control the high voltage battery
contactors. Severing the low voltage cables should
cause the high voltage contactors to open. The low
voltage (12V) cable cut location is found in the engine
compartment rearward of the right strut tower.
April 2013
© 2012 General Motors Company, All Rights Reserved
Low Voltage AGM Battery
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Power Electronics
Drive Motor / Generator Power Inverter Module
The power inverter module is located under the hood on
the right side and is mounted on top of the transmission.
The module changes the high voltage Direct Current
(DC) into 3 phase alternating current. This 3-phase
electrical energy provides vehicle propulsion to the motor
within the transmission.
Power Inverter Module
Accessory DC Power Control Module
The accessory DC power module is mounted
underneath the power inverter module. The module
replaces the typical generator common to
conventional vehicles. Its function is to convert high
voltage DC electrical energy into low voltage DC
electrical energy to provide the energy needed for the
vehicle systems.
Accessory DC Power Control Module
April 2013
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High Voltage Charger
High Voltage DC Charger
The Chevrolet Spark EV features an onboard high voltage charger that
recharges the high voltage battery. The charger is located under the hood on
the left side above the transmission. The charger converts household
Alternating Current (AC) into Direct Current (DC) voltage to charge the
onboard battery. A unique cord connects the vehicle to an electrical
receptacle. The vehicle charge port provides the interface between the cord,
plug, and the charger.
In the event that a Spark EV is involved in an incident while the battery is
charging, remove the charge cord from the car using the charger cord handle
at the charge port in the left front fender. If that cannot be accomplished,
terminate the electrical power at the source.
High Voltage DC Charger
April 2013
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High Voltage DC Fast Charger
High Voltage DC Charger
The Chevrolet Spark EV features an optional DC fast charge capability.
Utilizing a commercial off board charger, the Spark EV can achieve an 80%
charge in less than 30 minutes. The drive motor battery DC charger is
located under the hood on the right side above the drive motor / generator
power inverter module. The DC charger utilizes a set of contactors to
connect the off-board fast charge station directly to the drive motor battery .
A unique cord connects the vehicle to a DC fast charge station through the
charge port.
In the event that a Spark EV is involved in an incident while the battery is
charging in this manner, terminate the electrical power to the charge station.
High Voltage DC Charger
April 2013
Vehicles that are not equipped with this option will
still feature the DC charger assembly as it is a
electrical junction for high voltage components.
© 2012 General Motors Company, All Rights Reserved
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1ET35 Transmission
Front
The variable-speed, electronically controlled,
front wheel drive transmission is fully
automatic. It consists primarily of 2 axles, 85
Kilowatt (kw) drive motor / generator,
1 planetary gear set, 1 differential gear set,
and a high voltage auxiliary fluid pump.
The transmission’s electric motor / generator:
• propels the vehicle
• generates / recaptures energy
April 2013
© 2012 General Motors Company, All Rights Reserved
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System Operation
The Spark EV is an all Electric Vehicle (EV). Stored electrical energy is used to power a single 85Kw motor. The
vehicle operates until the battery has reached a low state of charge. Once the stored electrical energy is depleted,
the vehicle must be charged using an external power source.
April 2013
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System Operation (continued)
There are two separate electrical
systems in the vehicle: low voltage
and high voltage. The low voltage
system is similar to a conventional
systems. The high voltage electrical
system distributes 360 volts DC
between the high voltage
components and 3-phase AC to the
transmission.
High Voltage
Battery
Low Voltage
Battery
The high voltage cables are orange
in color to easily identify the potential
existence of high voltage. High
voltage cables that are routed
through non-orange conduit are
identified with high voltage warning
labels.
High Voltage DC
Cables
April 2013
© 2012 General Motors Company, All Rights Reserved
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Voltage Classifications
The two voltage levels in the Spark EV are:
•
•
Low voltage – from 0 to 30 volts DC
or 0 to 15 volts AC
High voltage – any voltage
greater than 60 volts DC or 30 volts AC
Classification
Low Voltage
High Voltage
DC ≤ 30v
DC > 60v
AC ≤ 15v
AC > 30v RMS
Voltage Ranges
Color coding identifies the different levels. Orange identifies high voltage cables.
April 2013
© 2012 General Motors Company, All Rights Reserved
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DC Voltage Classifications
Chevrolet Spark EV’s use high voltage,
specifically 360 volts DC. Therefore, one
MUST approach an emergency situation with
caution. Keep in mind that the vehicle should
isolate and contain the high voltage within the
drive motor battery. However, a disable
procedure must be performed before
proceeding with any repair facility service work.
April 2013
© 2012 General Motors Company, All Rights Reserved
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High Voltage Labels
A series of high voltage labels enable quick
identification of potential electrical hazards.
The labels are attached onto each high
voltage component.
The labels are color coded to indicate the
potential high voltage state.
There is also a pictorial label that illustrates
the removal of the high voltage Manual
Service Disconnect (MSD).
April 2013
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High Voltage Labels
The emergency / service personnel warning
label is affixed to the right side of the power
inverter module and provides specific disable
procedures for emergency personnel.
The high voltage danger labels are red
and indicate that high voltage is present at
all times. These labels are located only on
the high voltage battery.
The high voltage warning labels are orange and
indicate a potential shock hazard if high voltage
is not properly disabled. The labels are located
on all high voltage components with the
exception of the high voltage battery which
utilizes the danger label.
April 2013
© 2012 General Motors Company, All Rights Reserved
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First Responder Label & Tag
The First Responder cable cut tag is
wrapped around the low voltage power wires
for the air bag module and the EV control
module. It is located in the front right wheel
house behind the right strut tower. Always
cut the low voltage cables to ensure the high
voltage contactors are open before
performing any extrication work.
April 2013
© 2012 General Motors Company, All Rights Reserved
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First Responder Cut Tag
First responder cut tags help First Responders safely disable the vehicle in an emergency situation. The cable cut
tag is yellow and wraps around the low voltage positive cable to indicate where emergency personnel must cut the
cable.
Important: Cut through the cables on each side of the tag to remove
a section of the cable to ensure they cannot reconnect inadvertently.
April 2013
© 2012 General Motors Company, All Rights Reserved
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Disabling The Vehicle
To disable the vehicle:
1.
Turn OFF the ignition switch by pressing the button on
the center console controls.
2.
Cut the wire harness cable located in the front right
wheel house, behind the strut tower at the yellow tape.
Note: After disabling 12 volt power, wait 1 minute to allow
any un-deployed air bag reserve energy to dissipate.
Important: Cut through the harness on each side
of the tag to remove a section of the cable. This
ensures that they cannot reconnect inadvertently.
April 2013
© 2012 General Motors Company, All Rights Reserved
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Disabling the High Voltage Battery
The Manual Service Disconnect (MSD) may
also be removed to further ensure the high
voltage system is disabled within the battery.
The MSD physically interrupts the high voltage
cables internal to the battery. A label illustrating
the removal of the MSD is located underneath
the rear seat cushion.
Note: There is high voltage in the battery even
after the MSD is removed.
April 2013
© 2012 General Motors Company, All Rights Reserved
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Cable - DO NOT CUT ZONES
The high voltage cables in the Chevrolet Spark
EV are highly protected and should not
interfere with any extraction procedures.
However, always perform the disabling
procedure prior to work to eliminate electrical
current flow through the 12 volt system and
disables the high voltage electrical system,
external to the 360V battery. No further action
is required.
DANGER: Do NOT cut the
orange high voltage 360V cables.
Cutting these cables can result
in serious injury or death. No
matter which disable method
you perform, always assume the
high voltage cables and
components contain high
voltage.
April 2013
© 2012 General Motors Company, All Rights Reserved
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Vehicle - DO NOT CUT ZONES
Do NOT cut the:
•
Center tunnel area or the area under the
rear seats - the 360V battery is installed
in this area.
•
Roof rails near the lift gate hinge - side
curtain air bag inflators and lift gate hold
open struts are located in this area.
•
Front and rear seat backs on the
outboard side - contains side air bags.
•
The B pillar near the rocker - contains the
seat belt pretensioner and the side
impact sensor.
•
The front door area near the upper hinge
- additional side impact sensors are
located there.
WARNING: Do NOT cut into the vehicle
until the 12V electrical system has been
disabled. Cutting into the vehicle prior to
disconnecting and isolating the 12V
electrical energy sources may cause air bag
deployment resulting in serious injury.
April 2013
© 2012 General Motors Company, All Rights Reserved
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Vehicle Design
The vehicle has been designed to protect the
occupant(s) during a collision. The vehicle
design begins with a strong, body-frame-integral
structure. High-strength steel makes up more
than 62 percent of the Spark EV’s underbody
and 42 percent of its upper body. Adequate
cutting tools will be required to penetrate the
structure.
The Spark EV is equipped with 10 standard air
bags, including both driver and passenger front
knee air bags to reduce the risk of injuries to
lower extremities in frontal crashes. Dual-stage
frontal air bags, seat-mounted side air bags, and
side curtain air bags that extend over the front
and rear seating rows are also standard.
Additionally, crumple zones protect the occupant
with front, side, and rear rails that are designed
to crush in the event of a collision.
April 2013
© 2012 General Motors Company, All Rights Reserved
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Air Bag Deployment
Whenever the air bags deploy, the contactors within
the high voltage battery are commanded open. This
interrupts the 360 volt electrical system and
discontinues current flow through the high voltage
cables.
Because the vehicle is equipped with dual-stage
front air bags, the appearance of deployed air bags
does not ensure that all stages of air bag
deployment has occurred.
Therefore, disabling 12 volt power is essential for
personal safety even if the air bags in the vehicle
appear to have been deployed. After disabling 12
volt power, wait 1 minute to allow any
un-deployed air bag reserve energy to dissipate.
April 2013
© 2012 General Motors Company, All Rights Reserved
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First Responder Considerations
Approaching a vehicle that is charging
To stop charging a vehicle, first attempt to unplug the charge cord at the vehicle. If access is unavailable, turn
off the power to the charge station or cord set.
Fire
A battery on fire will not explode. If battery cells reach high enough temperature, they vent and release
electrolyte. Battery electrolyte is flammable. Use copious amounts of water to cool the battery and extinguish
the fire. Do not use an ABC dry chemical extinguisher because it will not extinguish a battery fire.
Water
The high voltage battery is sealed and isolated from the vehicle chassis. If the vehicle is immersed in water, you
will not be electrocuted by touching the vehicle.
Locate and review the Lithium-Ion Battery Chemistry Material Safety Data Sheet for more information.
April 2013
© 2012 General Motors Company, All Rights Reserved
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Conclusion
General Motors is committed to making your job as safe as possible.
We are confident the information contained in this guide will prove useful as you prepare to assist those
involved in an emergency event.
For information regarding modification of GM’s First Responder Information for other uses, contact GM’s Licensing Manager at:
GM Licensing Program Headquarters, 5775 Enterprise Ct. Warren, MI 48092, Attn: Licensing Coordinator
April 2013
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