hybrid vehicles
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om sai
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#1
12-02-2010, 03:45 PM


please send a copy related to the above topic(seminar and presentation)
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project report tiger
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04-03-2010, 11:09 AM

please read topicideashow-to-HYBRID-ELECTRIC-VEHICLES for hybrid cars/hybrid vehicles more information
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15-05-2013, 04:09 PM

HYBRID VEHICLES



.ppt   HYBRID VEHICLES.ppt (Size: 551.5 KB / Downloads: 47)

HYBRID STRUCTURE

The two power sources found in hybrid
vehicles may be combined in different
ways, either in parallel or series
Either one will allow the gasoline engine to shut down when it is not needed.

PARALLEL HYBRID

Gasoline motor
Batteries which powers an electric motor
Both can power the transmission at the same time
Electric motor supplements the gasoline engine

SERIES HYBRID

Gasoline motor turns a generator
Generator may either charge the batteries or power an electric motor that drives the transmission
At low speeds is powered only by the electric motor

HIGH VOLTAGE ELECTRICAL SYSTEMS

Power for the electric motor is supplied by high-voltage nickel-metal hydride battery
Batteries for all hybrids are produced by Panasonic EV Energy in Japan
Voltage ranges from 144 volts to 650 volts of DC current

BATTERIES

Individual cells originally contained liquid potassium hydroxide
The liquid is almost totally absorbed by the paper membranes inside each cell of the battery
Because the liquid is absorbed these batteries are considered “dry cell” batteries

HIGH VOLTAGE ELECTRICAL SYSTEMS

Batteries are usually located in the rear of the vehicle under the floor of the trunk or under the rear seat.
The wiring harness from the batteries usually runs below the floorpan of the vehicle about one foot in from the driver’s side of the vehicle.

BATTERY RECHARGING

The Ni-MH batteries are recharged through a process call regenerative braking
Regenerative braking takes energy from the forward momentum of the vehicle and captures it while coasting or braking.
Occasionally batteries are recharged by the electric motor

EMERGENCY PROCEDURES FIRES

Vehicle fires can be handled following normal vehicle firefighting procedures
Crews should not be shocked, even if flames are impinging on the battery pack itself
Virtually all fires involving Ni-MH batteries can be controlled with water

KEYLESS IGNITION SYSTEMS

Convenience of push button start
Systems are designed to deter theft and break-ins
Utilize key fobs which contain a chip with an ID code that the vehicle must recognize
The key fob must be in the vehicle in order for the car to start

SUMMARY

Due to the proliferation of hybrid vehicles on the road today, responders must be familiar with how these vehicles operate, and how to handle an emergency which involves one of these vehicles.
Additionally, responders must stay up-to-date with current vehicle technology, as it is continuously changing.
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