digital twin spark ignition(dtsi)

8/12/2019 Digital Twin Spark Ignition(Dtsi)

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PRESENTED BY

JYOTEN PANDITPAUTRA(1225016)

SUVARNA GHULE(1225017)

YOGI BHIMANI (1225020)

DHEER DEDHIA (1225024)


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WHAT IS DTSI ? WHY IS IT USED ?

OPERATING PRINCIPLE

COMPONENTS WORKING

ADVANTAGES

DISADVANTAGES

FUTURE SCOPE

REFERENCES


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DTSI means Digital Twin Spark Ignitionsystem.

It has Two Spark Plugs that are use to ignitethe charge in the combustion chamber.

The Twin Spark Plugs ensure faster and bettercombustion.

In this system the spark timing is controlled

by a computer that continuously adjustignition timing to obtain Optimumcombustion.


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In conventional enginesthe air-fuel mixture doesnot get combustedcompletely. So We use

DTSI technology.

To reduce dependence onmechanical system for

controls. For more accurate and

precise ignition timing.


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In the DTSI system a timer is employed in thedistributor instead of contact breaker.

This timer may be a pulse generator whichtriggers the ignition module, also called

electronic control unit. (E.C.U.) . This control unit primarily contains transistor

circuit whose base current is triggered off & onby timer which result in starting & stopping ofprimary current.

Other than this, the electronic ignition systemwork similar to the conventional electrical point-type system


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MICROPROCESSORS/CPU : It has taken overmany of the tasks in cars that were formerlyperformed by vacuum, mechanical orelectromechanically devices. When properlyprogrammed, they can carry out explicitoperations with blinding speeds and almostflawless consistent.

POSITION SENSORS: The CPU receives feedbackfrom the sensors and checks along the

programmed value. Depending on the input,the computer will control the actuators until theprogrammed results are obtained.


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A/D CONVERTER: Output of some positionsensor is in the analog form while computercan only read in digital form. To overcomethis communication problem all analog

voltage are converted in digital format by adevice known as an analog to digitalconverter. This produces a digital wavesignal that can directly go to the CPU.


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The ignition system on the Twin spark is a digitalsystem with static spark advance and no movingparts subject to wear. It is mapped by theintegrated digital electronic control box whichalso handles fuel injection and valve timing. It

features two plugs per cylinder. This innovative solution, also entailing a special

configuration of the hemispherical combustionchambers and piston heads, ensures a fast, wideflame front when the air-fuel mixture is ignited,

and therefore less ignition advance, enabling,moreover, relatively lean mixtures to be used. Asa result, the adoption of twin spark ignitionyields:


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Digital Twin Spark ignition engine has two Sparkplugs located at opposite ends of the combustionchamber and hence fast and efficient combustion isobtained.

The benefits of this efficient combustion process can

be felt in terms of better fuel efficiency and loweremissions. The ignition system on the Twin spark is a digital

system with static spark advance and no movingparts subject to wear.

It is mapped by the integrated digital electronic

control box which also handles fuel injection andvalve timing. It features two plugs per cylinder.


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This innovative solution, also entailing aspecial configuration of the hemisphericalcombustion chambers and piston heads,ensures a fast, wide flame front when the air-

fuel mixture is ignited, and therefore lessignition advance, enabling, moreover,relatively lean mixtures to be used.

This technology provides a combination of

the light weight and twice the power offeredby two-stroke engines with a significantpower boost, i.e. a considerable "power-to-weight ratio" compared to quite a few four-stroke engines.


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Less vibrations and noise. Long life of the engine parts such as piston rings and

valve stem. Decrease in the specific fuel consumption. No over heating.

Increase the Thermal Efficiency of the Engine & even bearhigh loads on it. Better starting of engine even in winter season & cold

climatic conditions or at very low temperatures because ofincreased Compression ratio.

Because of twin Sparks the diameter of the flame increases

rapidly that would result in instantaneous burning of fuels.Thus force exerted on the piston would increase leading tobetter work output.


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There is high NOx emission. If one spark plug get damaged then we have

to replace both.

The cost is relatively more


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This technology is presently being used byone of the largest two wheeler manufacturersof India Bajaj Ltd.

They have a Patent of this technology whichgives them an edge over the competitors.

They have implemented this in most of theirproduct line up.

PULSAR SERIES, DISCOVER RANGE


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The case study can be explained by the video.


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digital twin spark ignition(dtsi)

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