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TRANSCRIPT
FIRST RESPONDER TRAINING
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Chevrolet VOLT First Responder Training
• 2 hr Training Session – Vehicle Introduction – Battery and Electrical Technology – Emergency Operations – Response to the Incident
Compiled by:Captain Frank DoyleLt. Paul GrossFF. Gregory Myers
CHEVROLET VOLTFACTS, FEATURES & SAFETY
2001 2002 2003 2004 2005 2007 2008 20092006 2010 2011
GM Electric and Hybrid Programs Continue…
GM-Allison Hybrid Bus
Chevrolet Tahoe & GMC Yukon
Cadillac Escalade
Silverado & Sierra
FWD Hybrid
Plug-inHEV
Saturn AURAHybrid
Saturn VUEHybrid
Chevrolet MalibuHybrid
Volt
Shanghai-GMBuick Hybrid
Lithium Ion for new programs launching in this timeframe
RWD2-ModeHybrid
Plug-In Hybrid
Voltec EREV
GMHybrid
GM-AllisonHybrid
More than 10 years of hybrid-electric technology
Key Electrical Technology of the Volt
Safety Overview• Structure and • Safety Integration
DaytimeRunningLights
Electronic Stability Control System
Anti-LockBrakingSystem
Systems to Help Absorb Energy from Impact
AutomaticCrashResponse
Post-Crash Occupant Protection
Automatic Door Unlock
Automatic Flashers
AutomaticHigh VoltageShutoff
Fuel Sender Shutoff
BEFORE AFTERDURING
Chevrolet Volt Continuous SafetyProtection Before, During, and After Vehicle Collisions
Comprehensive Safety
CHEVROLET VOLT BATTERY & ELECTRICAL TECHNOLOGY
100% Electrical Propulsion
• Volt Battery w/Cover
Volt Battery w/o Cover
Manual ServiceDisconnect
ElectricalInterface to Vehicle (Battery Disconnect Unit)
Sealed Battery Pack, Electrically Isolated System
First Responder Field Scenarios• Standard Operating Procedures :
Size-Up, Approach, Immobilize, Extinguish
Vehicle on FireNO increased risk to first responders
Vehicle in WaterNO increased risk
of shock hazard
Vehicle Labeling Strategy
– Danger & Warning– Color Coding– High Voltage Disconnect
Emergency Operations Involving Advanced Electric Vehicles
How will HEVs and EVs affect my response?
Perceived Issues
Concern:High voltage batteries will leak dangerous amounts of fluid if damaged.
Reality:•Batteries are not lead acid.•NiMH and Li-Ion are dry cell batteries.•Electrolyte is absorbed in a medium.•A few drops may be produced if cell is crushed.
Perceived IssuesConcern:I risk electrocution by touching an HEV/EV involved in a crash or is submerged.
Reality:•High voltage system is completely isolated from chassis.
•Integrated safety systems and basic electrical theory protect occupants and responders.
Perceived IssuesConcern:It will be difficult to disable the HV electrical system.
Reality:•Integrated shutdowns in the event of a crash.
•Shutting off the vehicle’s ignition will shut down High voltage.
•Backed up by 12v battery disconnection.
Perceived Issues
Perceived IssuesReality:• Fires in HEVs and Evs are
extinguished with standard firefighting procedures.
Concern:• Special Equipment is
needed for vehicle fires.
Actual Issues
• Solution:Always ensure vehicle is shut down and
secured from moving.
Issue:Unexpected movement is a serious concern for responders.
Actual Issues
Solution:• Automatic safety shutdowns.• Simple additional shutdown
procedures.• HV isolation from chassis.• System fuses.• Break in outer mesh of wire initiates
shutdown.
Issue:High voltage systems ranges from 100v to 360v DC and up to 650v AC.
RESPONDING TO THE INCIDENT
Safety ProceduresIdentify
Immobilize
Disable
Safety Procedures –Identification
•There are many types of labeling systems!
Safety Procedures -Identification
• Identification is not always easy due to damage.
Safety Procedures - Immobilize
• Chock the Wheels
• Engage Emergency Brake
• Place Vehicle in Park
Safety Procedures HV Disconnect
1Turn Vehicle OFF(push Start/Stop button- gauges turn off)
High Voltage Disconnect Procedure
2Access 12V Cut Locations(left side of trunk)
Making the Volt safe for patient extrication:
• Cut the 12 volt cable in the trunk where it is labeled. – You will need to cut the cable in two spots.– Both cut marks are labeled on the cable
High Voltage Disconnect Procedure
3Cut and Remove Section of 12V Cable
High Voltage Cables
• The high voltage cables are not in the typical cut areas. – Always peel interior paneling before you cut.
• The high voltage cables are orange but they may have black plastic around them for protection.
Other information
• The high volt battery has sensors that should disconnect the batteries power during impact.
• If concerned that the high volt battery was not disconnected during impact.– Pull the high voltage manual service disconnect– Simply pulling the high voltage manual service disconnect
will not disconnect the 12 volt power.– Still cut the 12 volt cable in the trunk
12 Volt Disconnect
• If you can not access the 12 volt cable in the trunk.– Pull all fuses in the fuse box – This will disable the airbags– Fuse box is on the dash by the drivers door
• Also there is access to the 12 volt cable in between the B and C post in the rocker panel on the drivers side.– The cable is RED
Standard Responses
Making the Volt safe for patient extrication
• Approach the vehicle from the side• Chock the wheels• Make sure the vehicle is turned off.– If the LCD screens are illuminated the Volt is running– You can not hear the Volt when running on battery power– As a safety if you open the hood while the Volt is running
on battery power the generator will start.– The generator sounds like an engine.
Crashes/Extrications
• Follow Recommend Shut Down Procedures.
• No Special Extrication Techniques.
• Be Aware of HV Components and Wiring.
Fire attack on the high voltage battery
• DC Power does not seek a path to ground.• ABC extinguishers will not work• Copious amounts of water will work• The batteries are not lead acid so they will not
leak dangerous amounts of fluid. • Once the battery is involved, consider
defensive attack if there are no exposures.
Submersion
• No additional hazards for hybrid vehicles.• Some bubbling at battery terminals if water is
contaminated.
CONCLUSION
• HV vehicles will continue to evolve.
• Education is key to safety!!