ppt over micro-hybrid technology which is useful to improve fuel efficiency

1. e-HDI MICRO HYBRID TECHNOLOGY
SHATABDI INSTITUTE OF ENGINEERING
AND RESEARCH,AGASKHIND.
GUIDED BY- MR.GALANDE SIR
PRESENTED BY- MR.MANOJ KHANDU DALVI

2. ABSTRACT
• The national mandate set forth by the Environmental
Protection Agency (EPA) to increase fuel efficiency and
reduce greenhouse gas (GHG) emissions by 5% each year
for all new model mid-size cars, medium-duty cars, and
light-duty trucks is pushing automobile makers to convert
their fleets to hybrid-electric and micro-hybrid vehicles.
Implementing automated start/stop (SS) technology in a
passenger vehicle is a cost effective way to improve fuel
economy (FE) and reduce emissions without affecting
consume acceptance. In urban areas, where much of the
vehicle driving time is spent idling at stop lights or in traffic,
the engine can be shut down when the vehicle is stopped
to save fuel. The engine is quickly and quietly restarted as

3. LITERATURE REVIEW
• In response to President Obama’s May 2010 directive to
reduce greenhouse gas (GHG) emissions and fuel
consumption (FC), the National Highway Traffic Safety
Administration (NHTSA) and the Environmental Protection
Agency (EPA) are mandating an increase in fuel economy
(FE) and reduction of GHG emissions by 5% each year for all
new model mid-size cars, medium-duty cars, and light-duty
trucks [9]. National mandates like this, along with rising
fuel prices, continue to push the automotive industry to
improve its corporate average fuel economy (CAFE).

4. INTRODUCTION
• In now days ‘’Global warming ‘’ is rapidly
increasing problem which is caused due to
‘pollution’’.
• CO2 emission is mainly responsible for pollution.
• Hence to reducing co2 emission the ‘’micro hybrid
technology’’ is used.
• THE ‘’micro hybrid technology’’ also known as a
‘’start -stop system’’.

5. WHAT IS MEAN BY MICRO HYBRID
TECHNOLOGY ?
• a micro-hybrid is the simplest kind of ICE-electrical
technology . The main and important feature of a
micro-hybrid is ‘start-stop’ function.
• start-stop system could help to reduce exhaust pipe
emissions, make city quiter and boosts fuel
efficiency.
• A start stop system operates by cutting the engine
when vehicle comes to complete standstill.
• In this technology the vehicles can stop and start
engine automatically without producing noise and
vibrations.

6. NEED OF A MICRO HYBRID
TECHNOLOGY
• IN comparison to different hybrid concepts i.e. fully hybrid pure
electric vehicle which carry significant costs for returns of
improvements in fuel economy, start stop technology costs relatively
much less.
• It is estimated that start stop vehicles costs some money additional to
conventional vehicles yielding significant improvements in fuel
economy.
• Start stop technology is not only promising but also costs a fraction
of what its competitor technologies do
• To sum up ,with ever increasing customer demand for eco-friendly
cars,depleating oil reserves ,stringent emission regulation ,no doubt
that ss technology will be a standard or even mandatory technologies
for vehicles in future.

7. TYPE OF START-STOP
SYSTEM
• 1 - Clutch operated
• 2 - Accelerator
operated

8. CLUTCH OPERATED

9. MAIN COMPONENTS OF
MICRO HYBRID TECHNOLOGY
1. ENGINE
2. STARTER ALTERNATOR SYSTEM
3. BATTERY
4. E-BOOSTER

10. BASIC COMPONENTS OF SS SYSTEM

11. • Alternators are used in modern
automobiles to charge the battery
and to power the electrical system
when its engine is running.
• Until the 1960s, automobiles used
DC dynamo generators with
commentators. With the
availability of affordable silicon
diode rectifiers, alternators were
used instead. This was encouraged
by the increasing electrical power
required for cars in this period,
with increasing loads from larger
headlamps, electric wipers,
heated rear windows and other
accessories
STARTER ALTERNATOR SYSTEM

12. E-BOOSTER
• Engine downsizing has become one of the main strategies to
reduce C02 emission. Turbochargers are well-adapted to this
purpose but one of their biggest drawbacks is the turbo-lag
which reduces the driving comfort especially during
acceleration. Electrically driven compressors also known as E-
compressor or E-booster could be a well-adapted solution to
boost the engine intake pressure in order to reduce the turbo-
lag. Since centrifugal compressors operate at high rotational
speeds, high speed electric machines are therefore required. To
achieve a significant reduction of the turbo-lag, a very fast
response time is needed leading to the development of electric
machines able to typically spin from idle to 75kRPM in less
than 300ms.

13. WORKING
It consisting main 4 components these are
Engine ECU starter alternator battery E-
booster
when brake is applied then extra energy occurs
due to friction is stored in e-booster, and e-booster
releases energy when it is needed.
it working on the principle of ‘’REGENERATIVE
BREAKING’’

15. CONDITION FOR START
STOP SYSTEM
• Engine speed in idling range.
• Accelerator Pedal Not Pressed.
• Clutch pedal Not Pressed.
• Vehicle speed is zero.
• Battery condition is healthy.
• Gear box in neutral.
• Bonnet remains closed

16. ADVANTAGES OF MICRO
HYBRID TECHNOLOGY
1. Fuel consumption is reduced by up to 5% to
10% in city driving.
2. Co2 emission is reduced up to 5% to 10% in
city .
3. The engine restarts in 350 millisecond.
4. Noise and vibrations eliminated by this
technology.
5. Implementation cost is not very high.

17. DISADVANTAGS OF MICRO
HYBRID TECHNOLOGY
1. Fuel saving is not good as fully hybrid.
2. Some vehicles functions may not run when engine
is off EX . Air conditioner .
3. Maintenance cost is high .

18. APPLICATIONS OF MICRO
HYBRID TECHNOOGY
• 1 MAHINDRA and MAHINDRA first introduced
micro hybrid technology in India in their suv like
scorpio,bolero,XUV 500 etc
• 2 TATA motors introduced this technique in their lcv
TATA ACE in 2009
• 3 BMW uses start stop technology in their many
cars.
• 4 Fiat,Honda ,volkswagon and many other
automobile companies use this technology.

19. DIFFRENCE BETWEEN CONVENTIONAL
IC ENGINE AND START STOP SYSTEM
Conventional IC
engine
START STOP SYSTEM
FUEL CONSUMPTION Fuel consumption is
more.
Fuel consumption is
less.
EMISSION Emission of co2 is
more.
Emission of co2 is less.
COST COST is less Implementation cost is
less but maintenance
cost is more.
BATTERY ONLY use for engine
starting
Battery is used to start
engine and provide
energy for device
support while in
‘’stop’’ mode.

20. CONCLUSION
• More than 50% newly registered vehicles will
have start stop as standard technology after
2013.even though the technology is wildly
utilized for small/mid segment cars in Europe
.it also have high potential for compact and
luxury car segment .it can be expected ,that
especially micro-hybrid technology will gain
increasing relevance in coming year as
technological challenge are solved .

21. REFERANCES
1. Peugeot_stop_start_technology_media_kit/2010
2. Tech_Tuesdays_india_wordpress_automotive_technology_blog/2010
3. TSB_2008_100_NMF_00504_Scorpio_M2DI_with_Stop_St art_Mechanism.
4. TSB_2010_100_NMF_00748_Bolero_PU_Micro_Hybrid_Start_Stop_mechanis
5. FEV LDV EU Technology Cost Analysis Start/Stop Over view December 2011.
6.http://www.hybridcars.com/types-systems/where-are-microhybrid
26042.html
7. S. Schaeck et al J. Power Sources (2008), doi:10.1016 j.jpowsour. 2008.10.06
8. “Ford Concentrates on Control Strategies for Low-Cost Start- Stop System for
Fusion.” Green Car Congress. 19 July 2012. Web.
9. Schaeck, S., A. O. Stoermer, and E. Hockgeiger. “Micro- Hybrid Electric Vehicle
Application of Valve-Regulated Lead-Acid Batteries in Absorbent Glass Mat
Technology: Testing a Partial-State-of-Charge Operation Strategy.” Journal of
Power Resources (2008). Print.
10. http://www.eurecar.org/EureTEchNews_Dec_2012_GB

22. PRESENTED BY- MR.MANOJ KHANDU DALVI
THANK YOU