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Hybrid and Electric Vehicles

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Presentation on theme: "Hybrid and Electric Vehicles"— Presentation transcript:

1 Hybrid and Electric Vehicles
March 2013 Fire Training

2 What is the difference between a hybrid vehicle and an electric vehicle?

3 What are some potential risks associated with hybrid and electric vehicles involved in emergency incidents? Vehicle Accident/Extrication Fire Submersion

4 Hybrid Vehicles Internal combustion engine and electric motor
< 30 mph – Battery power > 30 mph – Gasoline engine Batteries charge as you drive

5 Electric Vehicles Require an external source to recharge
Regenerative Braking

6 HV Battery

7 Volts, Amps, and Current

8 Volts Electrical potential in a circuit Electromotive force
Example - PSI in hose stream

9 Amps Current – Number of electrons moving past a fixed point in one second Current is measured in amps

10 Current Low current can be harmful if backed by a significant amount of voltage

11 Direct Current (DC) Electrons move in one direction
Mostly found in things that are powered by batteries 12-volt battery

12 Alternating Current (AC)
Travels in multiple directions Power used to supply homes and businesses AC has the ability to readily change voltages

13 Circuits For current to flow there most be a completed path

14 Hybrid/Electric vehicles can operate in excess of 100 amps or 10,000 milliamps
6 milliamps – Unable to let go of conductor 70 milliamps – Burns 105 milliamps – Heart stops

15 Types of Hybrids Full Mild Start-Stop Plug-in

16 Full Hybrid Most hybrids on the road
Electric motor either assists engine or propels the vehicle at low speeds Toyota Prius, Ford Escape

17 Mild Hybrid Electric motor is only designed to assist the gasoline engine Does not propel the vehicle Honda Civic, Honda Insight

18 Start-Stop Hybrid Intermediate voltage system
Allows the engine to shut down instead of idling Electric engine does not propel the vehicle Chevy Malibu

19 Pure Electric Nissan Leaf (weighs 660 lbs.)
Average 73 miles on full charge Zero Gas – 100% electric 48 lithium ion battery modules Designed to last 10 years in normal driving conditions

20 Extended Range Electric Vehicle (EREV)
Can travel 40 miles on battery power alone Onboard gasoline engine turns the electric generator and recharges the battery Chevy Volt DC to AC power inverter

21 High Voltage Batteries
Nickel Metal Hydride (Hybrid) volts Lithium Ion (Electric) Location in Hybrids is almost always located in the truck or under second row seats Located under the floor in electric vehicles

22 What should high voltage mean to you?
Orange Cables > 60 volts Yellow or Blue cables Intermediate voltage system

23 DC 12 volt battery For current to flow, there must be a completed path
DC-DC Converter Takes high voltage battery to 12-volts to power things like the radio, headlights, airbags, etc.

24 Identify Immobilize Disable Operating Procedure Additional Hazards
High voltage electrical system Unanticipated vehicle movement Hybrids do not look futuristic Within 10 years, labels will go away

25 Establish command Primary Size-up 360 Size-up (Identify)
Deploy Hose Line Immobilize Disable Patient care Hazard control Terminate Command Approach vehicles from the side, could have potential to move

26 Immobilize Cribbing Approach from the side Place the vehicle in park
Engage the emergency brake

27 Disable Shut off the ignition Disconnect the 12-volt battery
Shuts down both the 12-volt battery and DC-DC Converter

28 Proximity Key If the key can be located, remove it at least 16 feet from the vehicle

29 Can’t shut off the ignition?
Locate the fuse that runs the high voltage system Just shutting down the 12-volt battery is not enough, the ignition must be disabled as well

30 Vehicle Fire Can I use water?

31 Batteries will burn for a long time
DC electricity follows from the battery, along the electrical circuit and back to the battery AC electricity Ground Fault Circuit Interrupter (GFCI) Immediately shuts down power if there is a short Batteries will burn for a long time

32 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

33 Helpful Resources

34 AC Hotstick One for each engine One on each squad Structure fires
Vehicle accidents Lines down

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