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Abhinav Kumar SantoshiIIT(BHU),Varanasi
HYBRID ELECTRIC VEHICLES
A hybrid is a combination of two or more things.
In this case we mean a vehicle powered by two different power Sources
Electric motor/generatorInternal combustion engine
Hybrid Definition
Hybrid, which we are talking about …
Motor/Generator
Battery Fuel
Transmission
Engine
Fuel
Transmission
Engine
Battery
Transmission
Motor/Generator
Battery Electric
HybridConventional
NO!!!!!Hybrids existed in the late 1800’s
Cars could be fuelled by either electricity or ethanol
No regenerative energy
Is a Hybrid Vehicle a New Idea?
The answer is :Technology
&Cost
But The invention of the IGBT and other power
electronic advancements 1970 onwards has made way for the modern hybrid electric vehicles.
Who Killed this Idea ?????
HEV MODEL
An electric propulsion system is comprised of three main elements: power electronic
converter, batteries , motor, and its controller
DC Commutator MotorPermanent Magnet (PM) Brushless DC
(BLDC) MotorSwitched Reluctance Motor ( SRM)Induction Motor
Electrical Components
HOW HYBRIDS WORK ?????
Fig : HEV by Tesla Motors
EVs 101
Energy Loss : City Driving
Engine Loss76%
Engine
Standby8%
DrivelineLosses
3%
Driveline
Aero3%
Rolling4%
Braking6%
Fuel Tank100%
16% 13%
POWERTRAIN VEHICLE-Related
EVs 101
• Can eliminate engine entirely
• Engine downsizing• Decoupling of engine and wheel
Energy Saving : Hybrid Systems
Engine Loss76%
Engine
Standby8%
DrivelineLosses
3%
Driveline
Aero3%
Rolling4%
Braking6%
Fuel Tank:100%
16% 13%
Micro Hybrid
Eliminates
Mild Hybrid ReducesPlug-in
Full Hybrid Reduces
Regenerative braking actually makes city driving more economical.
Fuel efficiency is greatly increased (twice).
Emissions are greatly decreased.Dependency on fossils fuels can be
decreased.Hybrids can be run on alternative fuels as
well.
Few reasons to have hybrids
Currently more expensive than conventionalHeavier than conventional, due to battery pack
and electric motors weightLimited battery life and expensive battery pack if
you want to replace itMore complex computer controlled systemsMay have drivability issuesExpensive to repair
Hybrid cars issues
More efficient diesel hybridsPlug in hybrids Fuel cell and plug in vehicles Powering your house/business with your fuel cell/hybrid cars
And more
The Future of HEV and Opportunities
•Chevrolet Tahoe Hybrid•Honda Accord Hybrid•Honda Civic Hybrid•Ford Escape Hybrid•GMC Silverado Hybrid•GMC Sierra Hybrid•Toyota Prius•Toyota Highlander Hybrid•Lexus 400h
Current Models of HEVs
According to the Business News on 12thApril, 2012, M&M is planning to Launch a full Hybrid Electric Vehicles in India in a couple of Years. http://www.livemint.com/Companies/z400EtgvamnPJZSzDrl5lO/Mahindra-developing-hybrid-vehicle-launch-in-three-years.html
Soon can be seen on Indian Roads.
In India
“Sometimes being different is good enough, you need not be new all the time”
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.
It can prove to be vehicle of future.If designed well, these hybrids can equal or better
the utility, comfort, performance and safety we’ve come to expect, while saving us thousands of dollars at the gas pump.
Conclusion
Husain, Electric and Hybrid Vehicles: Design Fundamentals, 1st ed.,
New York: CRC Press, 2003, p.150. J. Larminie and J. Lowry, “Electric vehicle technology
explained,” John Wiley & Sons, Ltd., England, 2003 Kulkarni, A; Kapoor, A; Mahalinga, I and Kosse, V.
“Innovative automotive design.” International Journal of Vehicle Design, Vol.6, No.1 (2012), pp9-27.
S. Matsumoto, “Advancement of hybrid vehicle technology,” in Proc.
EPE, Dresden, Germany, Sep. 11–14, 2005, pp. 1–7. James Larminie, and John Lowry, Electric Vehicle
Technology Explained, John Wiley, England, 2003. http://en.wikipedia.org/wiki/Hybrid_electric_vehicle http://www.fueleconomy.gov/feg/hybridAnimation/swfs/hybr
idframe.html
References
Queries ?????
