latest automobile technologies ppt.pptx

8/14/2019 latest automobile technologies ppt.pptx

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LATEST TECHNOLOGY IN BIKES &CARS

PRESENTED BY:

AAKAR GANGRADE


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CONTENT

TECHNOLOGY IN BIKES TECHNOLOGY IN CARS

DTS-iATFT

HET

CVT-i

i-VTEC TDI

CRDI


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INTRODUCTIONTechnology is advancing day by day, leadingto a bright & better future. It has enhanced

the capacity of performance of humans aswell as machines.

This presentation provides brief description

of some latest automobile technologies andhow these technologies are made available tous .


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(DIGITAL TWIN SPARK IGNITION)

This technology was introduced by Bajaj Auto Pvt.ltd.

Digital twin spark ignition has two spark plug to ignite the

charge in the combustion chamber.

Two spark plug at either ends of the combustion chamberhelp in faster and better combustion.

It is used in petrol engine.

DTS-i


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WORKING OF DTS-I

When the rich mixture of air and fuel enter inthe combustion chamber , the 2- spark plugsfixed at opposite end of engine cylindergenerates spark and this spark burns the mixture

and thus give power to 4-stroke engine. Herespark is generated by the microchip.


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MERITS OF DTS-I SYSTEMIt increases the efficiency.It increases the power output of engine .Less vibration and noise.

No over heating& less emission

DEMERITSOF DTS-I SYSTEMComplexityThere is high NOx emissionIf one spark plug get damaged then we have to replaceboth.

The cost is relatively more


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ATFT (ADVANCE TUMBLE FLOWINDUCTION

TECHNOLOGY)ATFT tech was introduced by one of the auto legend Hero Honda.

Advance Tumble Flow Induction Technology is the process byvirtue of which fuel air mixture can be burnt completely inside thecombustion chamber.


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Low engine rpm makes the combustion process incompleteand thereby increasing the pollution from the engine. At lowspeed, induction process becomes very slow so fuel does notget enough air to burn the fuel completely. This drawbackraises the need of development of this technology.Tumble flow means; an air flow circulating in the direction ofthe cylinder axis.The tumble flow is effective to improve the combustion at thelight loading of an engine by the strong turbulence effectwhich is caused when the tumble flow is broken near the endof the compression stroke

IMPORTANCE & WORKING


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MERITS OF ATFTIgnition Time Decreases.Rich mixture(air+fuel)burns completely incombustion chamber..

Low Nox emission.

DEMERITS OF ATFT

High vibration problem.High specific fuel consumption,Less mileage.


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HET(HONDA ECO TECHNOLOGY)HET primarily aims at reducing the friction in the engineand features lightweight components, which enables an 11

% increase in fuel efficiency over the older variants.


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BUILDING BLOCKS FOR HET

INTRODUCTION TO OFFSET CRANKUSAGE OF LIGHTER COMPONENTSCHANGES IN COMBUSTION PROCESSOPTIMISTION OF TRANSMISSION SYSTEM

IMPROVEMENT IN ENGINE COOLING SYS.MERITSLOW POWER LOSSLIGHT WEIGHT

LESSER WASTAGE OF UNBLURNT FUEL SO ECO-FRIENDLYINCREASED EFFICIENCY WITHOUT SACRIFICING POWER

DEMERITSCOMPLEX LAYOUT

LARGE SPACE REQUIRMENT


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CVT-i(Charge motion variable timing

intelligent engine)This technology was introduced by TVS MOTORS.

The CVTI technology is based on the principle of "Swirl andTumble Induction".

DESCRIPTIONThe CVT-i Engine combines swirl and tumble motion to achieve

very high in cylinder charge motion.In very simple words, when the air-fuel mixture enters the

combustion chamber, the combustion will be more complete if thereis turbulence.Turbulence is created in the engine of the Bike by making the air-fuel mixture Swirl horizontally like a merry go round.

The overall charge motion is three times more than conventionalport designs.


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This apart, TVS has appliedVT-i technology consistingof deceleration fuel cut off andsignificantly reduced friction.CVT-i engine is thecombination of charge

motion portandVT-itechnology givingit best in class fuel efficiency.

BENEFITSThis helps in uniformmixing of fuel and air toensure efficient combustionfor superior fuel economy

and reduced emission.

CONTD.


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TECHNOLOGY IN CARS

WORKING

i-VTEC

The i-VTEC engine works by controlling the timing andlifting of the camshafts depending on engine speeds.The valves open smaller during low engine speeds toachieve maximum fuel efficiency. The valves will openbigger at higher engine speeds to achieve higher

performance.

(INTELLIGENTVALVE TIMING &

LIFT ELECTRONICCONTROL)


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PROSHIGH POWERREDUCED WEIGHTLOW FUEL CONSUMPTION

CONSEXTRA VALVE TRAIN MASS

COMPLEXITY & BREAKDOWNPROBLEMS WHILE WORKING

AT LOW RPMS.


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TDI (TURBOCHARGED DIRECT

INJECTION ENGINE)

Turbocharged Direct Injection or TDI is a design of

turbodiesel engines, which feature turbocharging and

cylinder-direct fuel injection, developed and produced by the

Volkswagen Group.


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WORKINGThe TDI engine uses direct injection ,where a fuel injectorsprays atomised fuel directly into the main combustionchamber of each cylinder , rather than the pre-combustionchamber. The engine also uses forced induction by way of a

turbocharger to increase the amount of air which is able toenter the engine cylinders, and most TDI engines also featurean intercooler to lower the temperature of the 'charged', orcompressed air from the turbo, thereby increasing the

amount of fuel that can be injected and combusted . These, incombination, allow for greater engine efficiency, andtherefore greater power outputs, while also decreasingemissions and providing more torque.


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PROSPRECISE INJECTORS ARE USEDLOW HEAT LOSSFAST STARTUPHIGH POWER DEVELOPMENTHIGH EFFICIENCY

CONSINCREASED COMBUSTION NOISE

PRODUCES POLLUTANTS LIKE NOxCOSTLY


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CRD-i

CRD-i stands for Common Rail Direct Injection meaning, direct injectionof the fuel into the cylinders of a diesel engine via a single, common line,called the common rail which is connected to all the fuel injectors.The new common rail (line) engines maintain constant pressure regardlessof the injection sequence. This pressure then remains permanently available

throughout the fuel lineThe engine's electronic timing regulates injection pressure according toengine speed and load.


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CRDI system uses common rail which is like one single rail or fuel

channel which contains diesel compresses at high pressure. This is acalled a common rail because there is one single pump which compressesthe diesel and one single rail which contains that compressed fuel.

The fuel is injected into each engine cylinder at a particular timeinterval based on the position of moving piston inside the cylinder

WORKING


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There is an microprocessor encrpyted ;which can calculate the

precise amount of the diesel and the timing when the diesel shouldbe injected inside the cylinder.The microprocessor works with input from multiple sensors suchas Accelerator Pedal Position (APP) sensor, crank position sensor,pressure sensor, lambda sensor etc.

PROSMore power is developed.Precise injection timing is obtained.

Pollutants are reduced.The powerful microcomputermakes the whole system moreperfect.More stability

CONSCostly with highmaintenance

Increased weight of thassembly

CONTD.


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latest automobile technologies ppt.pptx