Friday 6 July 2012

ABS TECHNOLOGY







An anti-lock breaking system (ABS) is an automobile safety system that allows the wheels on a motor vehicle to continue interact with driver steering inputs while braking. Thus, preventing the wheels from locking up and therefore avoid skidding. It is an automated system that uses the principles of threshold braking and cadence braking.

Initially the use of anti-lock breaking system has evolved considerably in cars, but now even bikes with this technology are available in the market(tvs apache).recent versions not only prevent wheel lock while braking, but also electronically control the front to rear break bias.


Cadence Breaking
Cadence braking is an advanced driving technique used to allow a car to both steer and brake on a slippery surface. Cadence braking involves pumping the brake pedal fairly rapidly, to make the wheels lock and unlock. It can be approximated by the following steps:

·         Press the brake pedal until wheels lock up( On dry, hard pavement you will start to hear a squealing sound).

·          Reduce brake pedal pressure so that wheels start rotating again. Note that on slippery pavement you will have to lift your foot almost entirely to regain wheel rotation.

·          Lower your foot again to increase brake pressure until the wheels lock up the second time, then lift it again to release pressure and unlock.

·          Lower your foot again to lock up the wheels the third time, then release to unlock once more.

·          Continue pumping the brakes in this fashion until the vehicle stops or the danger is over.

Anti-lock braking system performs these operations automatically many times per second in rapid succession. A human driver can perform one lock-release cycle per second with practice. This is done primarily to maintain steering control.

BENEFITS:

·         Improved vehicle control

·         Decreases stopping distance on dry and slippery surfaces


Thursday 5 July 2012

ENGINES AT A GLANCE

ENGINES AT A GLANCE
Machine engineering has a vast scope to be opted as a career. Let it be any industry, hospital or a small scale factory every major function is controlled by a machine of some sort or the other. When we talk of machines in our daily life the first thing that come across our mind is engines and automobiles. To talk of engines over a decade or so a great advancement have been reached namely DTSi, CVTi, ASFS, APDV, ATFT are few of the most commonly known innovations that have come in an engine .
DTSi
Namely the digital twin spark ignition system offers phenomenal performance.

The major problem suffered in fuel combustion is that detonation occurs when flame travels from centre to the side walls. This often takes some time so this is overcomed by DTSi engine by providing two spark plugs at the opp. Sides. This reduces the flame travel time.
Twin spark plugs provide faster and better combustion of fuel. Conventionally a single spark plug is used. Two spark plugs on the either side of combustion chamber help in faster and better combustion. Pulsar is the most common example of DTSI engine vehicle.



                     Benefits:
                              .better fuel emission
                              .low emissions
                              .lesser vibrations/noise
                              .power is evenly distributed

 APDV



APDV stands for advanced pro series digital variable ignition system. This means that the ignition of the spark plug is controlled digitally which offers better and efficient combustion of fuels.


Benefits:
           .better millage
           .improved acceleration

This technology is found in SPLENDER PRO, PASSION