The document discusses idle start/stop (I3S) technology, which automatically shuts off an engine when the vehicle is idling and restarts it when needed. This saves fuel and reduces emissions. I3S was first developed in the 1960s and is now used widely in vehicles around the world. It can reduce fuel consumption and carbon dioxide emissions by 5-10% in city driving. While it helps reduce greenhouse gases, some vehicle functions may not work when the engine is off and it requires a special battery. The conclusion is that I3S will be standard in over 50% of new vehicles after 2013 as it is a key technology for meeting stricter emissions regulations.

1. I3S(S/S) TECHNOLOGY

2. WASTING FUEL
• Delhi wastes 40kL of fuel per day in traffic jams
• 6 billions gallons of gasoline wasting in USA per year
• 11 million tons of CO2 & 0.2 million tons of NOx and
5k tons of particulate matter into air

3. IDLE START/STOP SYSTEM
• I3S technology is one of the best technologies
available in automobile industry.
• I3S is a green technology that automatically shuts the
engine when idling and turns it on when needed
• It can assure you to save fuel and reduce green house
gas (GHS)

4. HISTORY
• Devices of this type have been
developed by Toyota in 1964 tested
since mid 1970s.
• Fiat Regata “ES”, Volkswagen Lupo
“3L” and Audi A2 “3L” etc.
• Recently, Hero Motor Corp has
introduced I3S tech for two wheels in
India Hero Motors Logo

5. ENGINE START/STOP
• I3S is a battery operated sensor circuit that detects the
idleness of the engine.
• When it detects the idleness of the engine, it turns off
the engine and when clutch/accelerator is pressed it
turns on again.
• You can switch on or off the I3S circuit with a switch
but optimum battery level is needed to operate this
function.

6. IN 2- WHEELER
WHEN STOPPING START-UP

7. IN 4- WHEELER

8. MODEL OF
ELECTRONIC
CONTROL
SYSTEM FOR S/S
SYSTEM

9. PRO’S & CON’S
• Fuel consumption is
reduced by up to 5% –
10% in city driving
• CO2 emissions are
reduced by up to 5% –
10%
• The engine restarts with
in 350 ms and in
complete silence.
• Fuel saving is not as
good as Hybrid
• Some vehicle functions
may not run when engine
is off (Ex: AC)
• This technology require
special type of battery &
stator

10. APPLICATIONS
• Used in Hero Splendor i -Smart bike
• BMW uses S/S Tech. across many of its cars & MINI line for
2008
• Bentley Bentayaga (2016) model
• General Motors used this Tech. as eAssist Technology
• Volkswagen began using S/S system with polo, Golf & Passat
(2007)
• M&M has introduced the S/S system based on Micro Hybrid
system to India

11. CONCLUSION
• More than 50% of the newly registered vehicles will
have Start/Stop as standard technology after 2013
• Even though this technology is widely used in
small/mid segment cars, but it also has high potential
for compact and luxury car segments
• It is key technology to be used with other fuel saving
technologies to attain the stringent carbon norms of
2020

12. THANK YOU