HYBRID ELECTRIC VEHICLE

SUBMITTED BY:-SANJAY KUMAR YADAVEE 3rd YEAR(1204231059)

1:- HYBRID VEHICLES

2:- WHY HEV ?

3 :- HEV MODEL

4 :- HOW HEVs WORK.

5 :-CLASSIFICATIONS OF HEV

6 :- ADVANTAGES & DISADVANTAGE

7 :- CONCLUSION

HYBRID VEHICLES

Any vehicle which combines two or more sources of

power.

Examples: Diesel – electric

Petrol – electric

Gasoline - electric

About HEVsHEVs offer the efficiency of electric-powered vehicles

without having to recharge by using conventional engines

and fuels.

Efficiencies are gained from motor down-sizing and

regenerative braking.

Inherent flexibility allows use for numerous applications

WHY HEV ? Regenerative braking actually makes city driving more

economical than on the highway.

Fuel efficiency is greatly increased (twice).

Emissions are greatly decreased.

Dependency on fossils fuels can be decreased.

Can be run on alternative fuels as well.

HEV MODEL

How HEVs WorkHEV’s prolong charge on batteries capturing KE via

Regenerative Braking.

HEV’s use ICE to generate Electricity by spinning Electric Generator either to Recharge or to feed power

HOW HYBRIDS ELECTRICAL VEHICLE

(HEV) WORK?

BATTERY CONNECTED

CAR STARTS

BATTERY SUPPLY

Regenerative Braking

CLASSIFICATIONS Parallel Hybrids

Series Hybrids

Power-split Hybrids

PARALLEL HYBRIDS

SERIES HYBRIDS

POWER SPLIT HYBRIDS It combines both Series and Parallel Hybrids

Series hybrids tend to be more efficient at lower speeds and parallel tend to be more efficient at high speeds

Hence It is more efficient

HEV EFFIENCYThree key factors:

Regenerative braking

Engine size

Vehicle weight & aerodynamic design

Engine size may be smaller than in a conventional vehicle

Vehicle weight/aerodynamic design:

Built using special lightweight materials

Uses advanced aerodynamics to reduce drag

Advanced Technologies Regenerative Braking

Electric Motor Drive/Assist

Automatic Start/ Shut Off

HEVs in Transportation

Increasing gasoline prices are making HEVs very attractive to consumers.

HEVs are already available today and their use will become more widespread as production picks up.

ADVANTAGES

Reduced fuel consumption

Excellent mileage

HEV is able to operate nearly twice as efficiently as traditional internal combustion vehicles

Lighter batteries than electric vehicles

Regenerative braking system stores electrical energy in Batteries

Uses less fuel to recharge batteries

DISADVANTAGES

Low Power Engine

High Initial Cost

Difficult Maintenance

Global-Warming: Still An Issue. Hybrids are not zero-emission vehicles.

Will cut down emissions of global-warming pollutants by a third to a half.

Later models may cut these emissions down by even more.

CONCLUSIONSo, the HEVs have more efficiency, Low Fuel Economy,

High Reliability and Less Air Pollution.

Optimum Utilization of these Vehicles will yield in good Results, especially Reduction of pollution.

THANKYOU