Facebook Badge

RSS
Post Icon

history of automobile

The automobile as we know, it was not invented in a single day by a single inventor. The history of the automobile reflects an evolution that took place worldwide. It is estimated that over 100,000 patents created the modern automobile. However, we can point to the many firsts that occurred along the way.
Several Italians recorded designs for wind driven vehicles. The first was Guido da Vigevano in 1335. Vaturio designed a similar vehicle, which was also never built. Later Leonardo da Vinci designed clockwork driven tricycle with tiller steering and a differential mechanism between the rear wheels.
A Catholic priest named Father Ferdinand Verbiest has been said to have built a steam powered vehicle for the Chinese Emporer Chien Lung in about 1678. Since James Watt didn't invent the steam engine until 1705 it is guessed that this was possibly a model vehicle powered by a mechanism like Hero's steam engine, a spinning wheel with jets on the periphery.
The firstvehicle to move under its own power for which there is a record was designed by Nicholas Joseph Cugnot and constructed by M. Brezin in 1769. A second unit was built in 1770, which weighed 8000 pounds and had a top speed on 2 miles per hour
and on the cobble stone streets of Paris this was probably as fast as anyone wanted to go it.
The early steam powered vehicles were so heavy that they were only practical on a perfectly flat surface as strong as iron. A road thus made out of iron rails became the norm for the next hundred and twenty-five years. The vehicles got bigger and heavier and more powerful and as such they were eventually capable of pulling a train of many cars filled with freight and passengers.
Many attempts were being made in England by the 1830's to develop a practical vehicle that didn't need rails. A series of accidents and propaganda from the established railroads caused a flurry of restrictive legislation to be passed and the development of the automobile bypassed England. Several commercial vehicleswere built but they were more like trains without tracks.
The development of the internal combustion engine had to wait until a fuel was available to combust internally. Gunpowder was tried but didn't work out. Gunpowder carburetors are still hard to find. The first gas really did use gas. They used coal gas generated by heating coal in a pressure vessel or boiler. A Frenchman named Etienne Lenoir patented the first practical gas engine in Paris in 1860 and drove a car based on the design from Paris to Joinville in 1862. His one-half horsepower engine had a bore of 5 inches and a 24-inch stroke. It was big and heavy and turned 100 rpm.

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS
Post Icon

automobile and other technologies

Compared to other technologies we use every day, it seems like car engines haven't really changed much. The engine in an old Ford Model T has plenty in common with the engine in a 2011 Ford Fusion, but it's doubtful Alexander Graham Bell would know what to do with an iPhone. While communications technology has changed drastically, car engines use the same basic principle: The combustion of air and fuel to create rotational force and move a car.
But while the same basic principles that drove the first car engines are still used today, modern car engines have evolved to meet the power and efficiency needs of today's drivers. Think of older car engines as wolves and modern car engines as dogs. They're share the same heritage and have similar characteristics, but one does just fine in everyday modern situations, while the other just couldn't adapt to living in a city or suburb.
Before we talk about how modern car engines are different from older ones, you need to understand the basics of how a car engine works. Basically, gasoline and air are ignited in a chamber called a cylinder. In the cylinder is a piston that gets moved up and down by the gasoline/air explosion. The piston is attached to the crankshaft. As the piston moves up and down, it makes the crankshaft rotate. The crankshaft goes out to the transmission, which transmits that power to the car's wheels. Sounds simple, right? With modern engines the basics still apply, but there's a lot more to think about.Your basic gasoline car engine isn't all that efficient. Of all the chemical energy in gasoline, only about 15 percent gets converted into the mechanical energy that actually moves the car. The EPA says over 17 percent of the energy is lost as the engine idles, and a whopping 62 percent is lost in the engine due to heat and friction.
Modern engines have a number of technologies in place to make them more efficient. For example, direct injection technology, which mixes the fuel and the air before they're put into the cylinder, can improve engine efficiency by 12 percent because the fuel burns more efficiently [source: U.S. Department of Energy]. Turbochargers, which use compressed air from the car's exhaust system, compress the air that's used in the combustion cycle. The compressed air leads to more efficient combustion. Variable-valve timing and cylinder deactivation are technologies that allow the engine to use only the fuel it needs, increasing efficiency.

There's a common misconception that efficient engines are underpowered engines. Keep reading to learn how modern engines out-muscle their older counterparts

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS
Post Icon

volkswagen 1.5 litre TDI diesel engine to be assembled in india

English: Volkswagen logo.
English: Volkswagen logo. (Photo credit: Wikipedia)



The engine of the new volkswagen polo facelift i.e the new 1.5 litre TDI engine will be soon assembled in india 
company is planing to assemble the engine at chakan plant near pune
volkswagen group has already invested  30 million euros for this
it will be ready till the end of this year
 Commenting on this development, Mahesh Kodumudi, group chief representative of the Volkswagen Group India and president and managing director of Volkswagen India said that this move "is the next important step in strengthening our commitment towards India. With this, we take a significant leap towards enhancing our localisation in India.”
The new assembly line will cover floor space of 3,450 square metres and can assemble over 98,000 engines in a three shift system at full capacity. Over and about the new Polo facelift, this engine will also power the new Polo GT TDI

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS
Post Icon

2014 Volkswagen Polo 1.5 diesel review

Volkswagen has substantially updated and reconfigured its Polo hatchback for India. Whereas the earlier car promised a lot but was hobbled by a weak and noisy 1.2-litre three-cylinder diesel engine and little equipment, this new car gets an all-new 1.5 diesel unit and more kit.
What’s new?
Volkswagen has made only small changes to the exterior of the Polo, which are so subtle that it's easy to miss them. Yet, these small tweaks are a step in the right direction. The bars of chrome in the chin and in the grille are well executed, the detailing in the headlights is quite classy and there are some new alloys too. Walk around to the back of the car and the details are even more difficult to spot. The tail-lights are new and the bumper has been re-designed to look a bit fuller. However, these changes are only visible when you take a closer look.
The biggest change VW has made is under the hood. It has downsized its 1600cc TDI or diesel engine to under 1498cc to help this version of the Polo get an excise cut, and the resulting reduction in price should prove to be really popular.
Indian customers never really took to the earlier non-linear, three-cylinder diesel, but this one is a very different kettle of fish. It’s really smooth when you start it up, the gravelly note of the earlier engine gone, the engine pulls cleanly from 1200rpm and torque flows smoothly all the way up to 4000rpm. You can spin the engine faster, to 5000rpm, too, but power begins to tail off. The motor takes its time to respond, but what’s nice is that there is no steep step up in power anywhere in the powerband, just a strong surge. The clutch isn’t the lightest around either, but VW’s slick gearbox makes changing gears a treat too; so, in traffic, the new VW Polo does quite well.   
This new 89bhp engine, however, does its best work once the roads open up. Acceleration is strong and the Polo gathers pace rapidly when the engine is kept spinning in its midrange. The 0-100kph sprint takes 13.08 seconds, although admittedly tested in slightly wet conditions, and this means overtaking slower cars is effortless.
The new VW Polo also gets an altered suspension. There’s a bit more weight in the steering wheel and the suspension now is much better at tackling poor roads. There’s more than enough compliance at low speeds and the suspension doesn’t crash through potholes like the earlier one did. The set-up, in fact, is very similar to the earlier Polo 1.6 TDI, but that also means it feels a bit ‘loose’ at higher speeds in a straight line and a bit skittish when cornered hard as well. VW has also improved the brakes. You now need to exert less effort when you want to stop quickly, which does give you a bit more confidence.
First verdict
More attractive, nicer to drive and better looking on the inside too, VW has upped the new Polo’s game substantially. With prices for the 1.2 petrol ranging from Rs 4.99 - 6.07 lakh and the new 1.5 diesel available for Rs 6.27 - 7.37 lakh, the new VW Polo is well and truly back in the game (all prices, ex-showroom, Delhi).

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS
Post Icon

AUDI A3 REVIEW ...

Price: 22.95 -32.66 lakhs


 maintaining the  prestige of Audi ,company is launching its Audi A3 in different versions with 2 fuel and 2 engine options and 1 transmission Audi A3 comes in following versions with 2 engine and 1 transmission and 2 fuel options.
here are the verions of Audi A3 which is to be launched in india 
VersionEx-Showroom Price (New Delhi)
Audi A3 35TDI Attraction
1968cc Diesel, Automatic, 20.38 kpl
 22.95 lakhs
Audi A3 35TDI Premium
1968cc Diesel, Automatic, 20.38 kpl
 25.95 lakhs


Audi A3 40TFSI Premium Plus
1798cc Petrol, Automatic, 16.6 kpl
 28.95 lakhs


Audi A3 35TDI Premium Plus
1968cc Diesel, Automatic, 20.38 kpl
 29.95 lakhs


Audi A3 35TDI Technology
1968cc Diesel, Automatic, 20.38 kpl
 32.66 lakhs

Audi A3 Review


The A3 sedan  was first shown to public  in the  Geneva Motor Show 2013 .And in india the Audi A3 was shown in Auto Expo 2014 Ithe company claimed that it will be slotted below the A4the two engine model in this car is  1.8-litre TFSI petrol and 2.0-litre TDI diesel variants.
Audi A3 Sedan
Exterior
 the exteriors are designed keeping the standards of Audi in mind the lenght is 4.46 which is obviously smaller than A4 by 0.3 meters  MQB underpinning  which is now a days very common in new models aof VW  umbrella are also there .
Audi A3 Sedan Left Side
Interior
Few options are introduced like the shape of ac vent ,pop up display and the trim option except them the sedan is similar to A4 .the  
Audi A3 Sedan Interior
The front seat space won’t be much of an issue, however, the rear is likely to be on the smaller end of the segment standard. The boot space, at 425 litres, will be sufficient for most occasions and is comparable to most of its rivals. The features list is expected to include Audi MMI and all the safety bits including ABS-EBS, ESP and airbags.
Engine and gearbox
The A3 sedan will be available in both petrol and diesel guise in India – the petrol version will be the 1.8-litre TFSI unit developing 177bhp and 250Nm, the oil burner is the 2.0-litre TDI mill with an output of 141bhp and 320Nm. Both the engines will power the front wheels via a seven-speed DSG gearbox.
Audi A3 Sedan Rear view


  • specifications Summary

Engines

1798 cc, Petrol, 178 bhp @ 5100 RPM power
1968 cc, Diesel, 143 bhp @ 3500 RPM power

Gearboxes

6-speed, Automatic
7-speed, Automatic

Seating Capacity

5 seater

Steering

Power steering 

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS
Post Icon

Hyundai new Elite i20 review

Hyundai i20
Hyundai i20 (Photo credit: Wikipedia)
Hyundai i20 1.2 Comfort
Hyundai i20 1.2 Comfort (Photo credit: Wikipedia)
Hyundai  Elite i20 comes up with two engine variants one is petrol and another one is diesel  The 89bhp 1.4-litre U2 CRDi diesel and the 81bhp 1.2-litre Kappa2 petrol engines mated to a five-speed manual transmission have been retained from the i20. Both petrol and diesel engines are available in four trims – Era, Magna, Sportz and Asta. Wearing the new curves and Fluidic  design, the Hyundai i20 looks very sporty and outgoing. This premium hatchback offers the best in class interiors with tons of features. Available in 1.2-litre Kappa2 petrol and 1.4-litre CRDi diesel mills, all the variants of i20 offer an outstanding fuel efficiency and impressive power. All the trims of the Hyundai i20 come in a five-speed manual transmission gearbox option except the petrol Sportz AT.
Price: 4.88 Lakhs - 7.95 Lakhs (Ex showroom price)

VARIANT

VARIANTSEX-SHOWROOM
PRICE

Hyundai i20 Asta (O) 1.2 Kappa Dual VTVT
Petrol, Manual
6.92 Lakhs - 7.24 Lakhs
Hyundai i20 Asta 1.2 Kappa Dual VTVT
Petrol, Manual
6.10 Lakhs - 6.77 Lakhs
Hyundai i20 Asta 1.4 U2 CRDi
Diesel, Manual
7.65 Lakhs - 8.09 Lakhs
Hyundai i20 Era 1.2 Kappa Dual VTVT
Petrol, Manual
4.88 Lakhs - 5.14 Lakhs
Hyundai i20 Era 1.4 U2 CRDi
Diesel, Manual
6.07 Lakhs - 6.45 Lakhs
Hyundai i20 Magna (O) 1.2 Kappa Dual VTVT
Petrol, Manual
5.43 Lakhs - 5.71 Lakhs
Hyundai i20 Magna (O) 1.4 U2 CRDi
Diesel, Manual
6.61 Lakhs - 7.02 Lakhs
Hyundai i20 Magna 1.2 Kappa Dual VTVT
Petrol, Manual
5.13 Lakhs - 5.39 Lakhs
Hyundai i20 Magna 1.4 U2 CRDi
Diesel, Manual
6.31 Lakhs - 6.70 Lakhs
Hyundai i20 Sportz 1.2 Kappa Dual VTVT
Petrol, Manual
6.00 Lakhs - 6.29 Lakhs
Hyundai i20 sportz 1.4 gamma VTVT (AT) 
Petrol, Automatic
7.95 Lakhs - 8.32 Lakhs
Hyundai i20 1.4 U2 CRDi
Diesel, Manual 
7.18 Lakhs - 7.61 Lakhs

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS
Post Icon

bmw FACELIFTED X3 REVIEW

BMW X3
BMW X3 (Photo credit: Wikipedia)
AUGUST 28  will be the date when bmw will open the curtains of bmw facelifted x3  
.  BMW X3 comes up certain changes  but very few mechanical changes. the x3 in india from 2013 so people are still wondering whats new in this model .






THE NEW X3  gets BMW’s new design language
  • The headlamp assembly is larger and
  •  the kidney-grille is more prominent, on the lines of the larger X5. 
  • The new facelift also gets restyled bumpers, new tail-lamps and new alloys.
  • Refreshed front and rear bumpers
  • New front grille
  • Larger headlamps
  • Cup holders
  • Redesigned center console
  • New leather wrapped steering
  • Sat Nav with integrated touchpad for the iDrive interface
  • Heads up display
  • Park assist
  • Electric opening bootlid
  • New alloy wheel design
Equipment on the 2015 BMW X3 includes 
  • Leatherette upholster
  • Dual-zone automatic climate control
  • 12-speaker AM/FM/CD audio system with HD radio along with AUX and USB inp


    uts
  • Bluetooth connectivity
  • A power liftgate
  • Automatic windshield wipers
  • Auto on/off headlights
  • 18-inch alloy wheels
  • Interior ambiance lighting
  • Auto dimming exterior and interior mirrors
  • A universal garage door opener
  • 40/20/40 split-folding rear seats
On the inside, the centre console gets glossy treatment and new upholstery. The bootlid of the new X3 gets electric-opening function.
 Overall silhouette and stance of the car remain unchanged.
The new X3 retains the engines from the current car. It is powered by 2.0-litre and 3.0-litre diesel motors.
 The 2.0-litre unit currently makes 184bhp, but is expected to be tweaked to deliver slightly more power in the new car. The bigger engine remains unchanged.

The new X3 will continue to be assembled at BMW’s Chennai plant.

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS