March 2013 Fire Training What is the difference between a hybrid vehicle and an electric vehicle What are some potential risks associated with hybrid and electric vehicles involved in emergency incidents ID: 310372
Download Presentation The PPT/PDF document "Hybrid and Electric Vehicles" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
Hybrid and Electric Vehicles
March 2013 Fire TrainingSlide2
What is the difference between a hybrid vehicle and an electric vehicle?Slide3
What are some potential risks associated with hybrid and electric vehicles involved in emergency incidents?
Vehicle Accident/ExtricationFireSubmersionSlide4
Hybrid Vehicles
Internal combustion engine and electric motor< 30 mph – Battery power> 30 mph – Gasoline engine Batteries charge as you driveSlide5
Electric Vehicles
Require an external source to recharge
Regenerative BrakingSlide6
HV Battery Slide7
Volts, Amps, and CurrentSlide8
Volts
Electrical potential in a circuitElectromotive forceExample - PSI in hose streamSlide9
Amps
Current – Number of electrons moving past a fixed point in one secondCurrent is measured in ampsSlide10
Current
Low current can be harmful if backed by a significant amount of voltageSlide11
Direct Current (DC)
Electrons move in one direction
Mostly found in things that are powered by batteries
12-volt batterySlide12
Alternating Current (AC)
Travels in multiple directionsPower used to supply homes and businessesAC has the ability to readily change voltagesSlide13
Circuits
For current to flow there most be a completed pathSlide14
Hybrid/Electric vehicles can operate in excess of 100 amps or 10,000 milliamps
6 milliamps – Unable to let go of conductor
70 milliamps – Burns105 milliamps – Heart stopsSlide15
Types of Hybrids
FullMildStart-StopPlug-inSlide16
Full Hybrid
Most hybrids on the roadElectric motor either assists engine or propels the vehicle at low speedsToyota Prius, Ford EscapeSlide17
Mild Hybrid
Electric motor is only designed to assist the gasoline engine
Does not propel the vehicle
Honda Civic, Honda InsightSlide18
Start-Stop HybridIntermediate voltage system
Allows the engine to shut down instead of idlingElectric engine does not propel the vehicleChevy Malibu Slide19
Pure Electric
Nissan Leaf (weighs 660 lbs.)Average 73 miles on full chargeZero Gas – 100% electricSlide20
Extended Range Electric Vehicle (EREV)
Can travel 40 miles on battery power aloneOnboard gasoline engine turns the electric generator and recharges the batteryChevy VoltSlide21
High Voltage Batteries
Nickel Metal Hydride (Hybrid)100-400 voltsLithium Ion (Electric)Location in Hybrids is almost always located in the truck or under second row seatsLocated under the floor in electric vehicles Slide22
What should high voltage mean to you?
Orange Cables > 60 voltsYellow or Blue cablesIntermediate voltage systemSlide23
DC
12 volt batteryFor current to flow, there must be a completed pathDC-DC ConverterTakes high voltage battery to 12-volts to power things like the radio, headlights, airbags, etc.Slide24
Operating Procedure
IdentifyImmobilizeDisableAdditional HazardsHigh voltage electrical systemUnanticipated vehicle movementSlide25
Establish commandPrimary Size-up360 Size-up (Identify)Deploy Hose Line
ImmobilizeDisablePatient careHazard controlTerminate CommandSlide26
Immobilize
CribbingApproach from the sidePlace the vehicle in parkEngage the emergency brakeSlide27
Disable
Shut off the ignition
Disconnect the 12-volt batteryShuts down both the 12-volt battery and DC-DC ConverterSlide28
Proximity Key
If the key can be located, remove it at least 16 feet from the vehicleSlide29
Can’t shut off the ignition?
Locate the fuse that runs the high voltage systemJust shutting down the 12-volt battery is not enough, the ignition must be disabled as wellSlide30
Vehicle Fire
Can I use water?Slide31
DC electricity follows from the battery, along the electrical circuit and back to the batteryAC electricity Ground Fault Circuit Interrupter (GFCI)Immediately shuts down power if there is a short
Batteries will burn for a long timeSlide32
Submerged Vehicles Manufactures recommend removing the vehicle from the water just like any other vehicle
You will not be shocked by an electric or hybrid vehicle that is submerged Slide33
Helpful ResourcesSlide34
AC Hotstick
One for each engineOne on each squadStructure firesVehicle accidentsLines down