Trade.Information

Audi will be(From mid 2008) putting the cleanest diesel technology in the world into series production,TDI Engines

The new TDI engines with their ultra-low emission system combine the performance and pulling power of today’s TDI power units with outstanding fuel consumption figures and incomparably low emissions.
For more........... www.audi.com/


Audi is kicking off its TDI strategy for 2008 with the three-litre V6 units in the Audi A4 and Audi Q7. Developing 176 kW (240 bhp) and a supreme peak torque of 500 Nm in the Audi A4 and 550 Nm in the Audi Q7. Additional models will follow in rapid succession, with Audi seeking to extend the new technology to other vehicle classes and power categories by 2010.

This new technology from Audi takes the TDI principle of diesel direct injection with turbocharging that has been proven a million times over and launches it into a whole new dimension. To do this, the diesel-engine development engineers at Audi have incorporated a whole raft of innovative measures into the latest TDI generation: the new piezoelectric common-rail system with an injection pressure of 2,000 bar, the extremely efficient exhaust gas recirculation and optimised turbocharging bring about a dramatic cut in untreated engine emissions. One of the highlights are the combustion chamber sensors that enable even more precise regulation of the combustion processes in the engine – this is the first time that such sensors have been fitted on any engine in the world, marking yet another Audi innovation.

The ultra-low emission system runs on a biodegradable additive in the form of a solution called AdBlue. Tiny doses of this solution are injected upstream from the DeNOx catalytic converter. The system as a whole comprises the catalytic converter, the metering module, the AdBlue tank and heated lines, as well as an extensive system of sensors. The comprehensive emission control system is rounded off by the separate two-way catalytic converter and the highly efficient, electronically controlled diesel particulate filter.

Many Audi TDI and TFSI models will in the future deploy an innovative power management system which capitalises on coasting and braking phases by recuperating and storing electrical power. While, a next-generation start-stop system is currently being developed which lives up to Audi’s standards of comfort.

Audi is developing hybrid systems for a number of model series and will put them into series production wherever it sees this as producing significant benefits for customers. Audi unveiled the Audi Q7 hybrid study with an electric motor integrated into the driveline between engine and gearbox back in 2005. Designed as a “full” hybrid, as it is known, the Audi Q7 can run on either the petrol engine or the electric motor alone or be powered by both in unison. During phases when the vehicle is coasting or braking, kinetic energy is converted into electrical energy, fed to the battery and then transformed into propulsive power as and when required.

Apart from ethanol or natural gas, the primary energy sources in question here are the next-generation fuels extracted synthetically from biomass or natural gas. These customised fuels improve the combustion processes inside the engine, resulting in a far healthier emissions balance sheet.

Of particular interest in this respect is SunFuel which is made from biomass. When this fuel combusts, it releases no more carbon dioxide than the plants which went into making it would have extracted from the atmosphere beforehand. The first facilities for industrial-scale production of these fuels are currently being built. Audi is giving its full backing to this integrated approach for better fuels under the umbrella of the Volkswagen Group.

Alternative fuel types are gaining in importance around the world. Natural gas, for example, is being used increasingly in a number of countries as a more cost-effective energy source with a lower CO2 content. Here, Audi has devised a concept for using CNG (Compressed Natural Gas). It is based on the TFSI engine and retains such strengths as its mighty pulling power even when running in natural-gas mode. The reduction in CO2 emissions of up to 20 percent in CNG mode can therefore be enjoyed without having to compromise on driving pleasure in any way. Moreover, the ingenious packaging still allows full use to be made of the luggage compartment and the vehicle's versatility despite the addition of the natural gas tank.

The same applies to the ethanol drive system from Audi. It is designed to run on fuel consisting of up to 85 percent ethanol – again without any loss of dynamism or sportiness. And yet, the CO2 output of such a drive system is around 75 percent lower when running on second-generation bioethanol than when it is burning conventional petroleum-based fuel.
The driver’s crucial influence

Audi will continue to demonstrate its “Vorsprung durch Technik” to the customer with all manner of technical solutions. It goes without saying, however, that it is the drivers themselves who bear a large part of the responsibility for driving in a manner that burns less fuel. The individual driving style can influence fuel consumption and, as a result, emissions by as much as 30 percent – without any great difference in speed or dynamism. Driver awareness and attentiveness are the decisive factors here. Audi will additionally provide support systems that help drivers modify their driving style for optimum fuel consumption

News Inside News

The modern era of Audi
The new merged company was known as "Audi NSU Auto Union AG", and saw the emergence of Audi as a separate brand for the first time since the pre-war era. Volkswagen introduced the Audi brand to the United States for the 1970 model year.

The first new car of this regime was the Audi 100 of 1968. This was soon joined by the Audi 80/Fox (which formed the basis for the 1973 Volkswagen Passat) in 1972 and the Audi 50 (later, rebadged as the Volkswagen Polo) in 1974.


Audi Quattro
Audi TTThe Audi image at this time was a conservative one, and so, a proposal from chassis engineer Jörg Bensinger[2] was accepted to develop the four-wheel drive technology in Volkswagen's Iltis military vehicle for an Audi performance car and rally racing car. The performance car, introduced in 1980, was named the "quattro," a turbocharged coupé which was also the first German large-scale production vehicle to feature permanent all-wheel drive through a center differential (not counting the earlier British Jensen FF, produced in small numbers). Commonly referred to as the "Ur-Quattro" (the "Ur-" prefix is a German augmentative used, in this case, to mean "original" and is also applied to the first generation of Audi's S4 and S6 sport sedans, as in "UrS4" and "UrS6"), few of these vehicles were produced (all hand-built by a single team) but the model was a great success in rallying. Prominent wins proved the viability of all-wheel drive racecars, and the Audi name became associated with advances in automotive technology.

In 1985, with the Auto Union and NSU brands effectively dead, the company's official name was now shortened to simply "Audi AG".

In 1986, as the Passat-based Audi 80 was beginning to develop a kind of "grandfather's car" image, the type 89 was introduced. This completely new development sold extremely well. However, its modern and dynamic exterior belied the low performance of its base engine, and its base package was quite spartan (even the passenger-side mirror was an option.) In 1987, Audi put forward a new and very elegant Audi 90, which had a much superior set of standard features. In the early nineties, sales began to slump for the Audi 80 series, and some basic construction problems started to surface.

This decline in sales was not helped in the USA by a 60 Minutes report which purported to show that Audi automobiles suffered from "unintended acceleration". The 60 Minutes report was based on customer reports of acceleration when the brake pedal was pushed. Independent investigators concluded that this was most likely due to a close placement of the accelerator and brake pedals (unlike American cars), and the inability, when not paying attention, to distinguish between the two. (In race cars, when manually downshifting under heavy braking, the accelerator has to be used in order to match revs properly, so both pedals have to be close to each other to be operated by the right foot at once, toes on the brake, heel on the accelerator.). This did not become an issue in Europe, possibly due to more widespread experience among European drivers with manual transmissions.

60 Minutes ignored this fact and rigged a car to perform in an uncontrolled manner. The report immediately crushed Audi sales, and Audi renamed the affected model (The 5000 became the 100/200 in 1989, as it was elsewhere). Audi had contemplated withdrawing from the American market until sales began to recover in the mid-1990s. The turning point for Audi was the sale of the new A4 in 1996, and with the release of the A4/6/8 series, which was developed together with VW and other sister brands (so called "platforms").

Currently, Audi's sales are growing strongly in Europe. 2004 marked the 11th straight increase in sales, selling 779,441 vehicles worldwide. Record figures were recorded from 21 out of about 50 major sales markets. The largest sales increases came from Eastern Europe (+19.3%), Africa (+17.2%) and the Middle East (+58.5%)[citation needed]. In March of 2005, Audi is building its first two dealerships in India following its high increase in sales in the region.

Audi has recently started offering a computerised control system for its cars called Multi Media Interface (MMI). This comes amid criticism of BMW's iDrive control, essentially a rotating control knob designed to control radio, satellite navigation, TV, heating and car controls with a screen. MMI has been widely reported to be an improvement on BMW's iDrive. (BMW has since made their iDrive more user friendly.)

MMI has been generally well-received, as it requires less menu-surfing with its mass of buttons around a central knob, with shortcuts to the radio or phone functions. The screen, either colour or monochrome, is mounted on the upright dashboard, and on the A6 and A8, the controls are mounted horizontally. However, an "MMI Like" system is also available on the Audi A3 and A4 models when equipped with the optional Navigation System.