2. 1:-HYBRID VEHICLES
2:- WHY HEV ?
3 :- HEV MODEL
4 :- HOW HEVs WORK.
5 :-CLASSIFICATIONS OF HEV
6 :- ADVANTAGES & DISADVANTAGE
7 :- CONCLUSION
3. HYBRID VEHICLES
Any vehicle which combines two or more sources of
power.
Examples:
Diesel – electric
Petrol – electric
Gasoline - electric
4. About HEVs
HEVs 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
5. 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.
7. How HEVs Work
HEV’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
17. 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
18. HEV EFFIENCY
Three key factors:
Regenerative braking
Engine size
Vehicle weight & aerodynamic design
19. 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
21. 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.
22. 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
24. 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.
25. CONCLUSION
So, 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.
