Sunday, December 21, 2008
Four Audi Models Earn Top Safety Marks in 2009 Awards from IIHS
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HERNDON, Va., Nov 26, 2008 - Audi's reputation as a leader in automotive safety gained added validation with four of its best-selling models claiming Insurance Institute for Highway Safety Top Safety Pick awards for 2009. |
Lightweight Design - It’s an Art: The Audi ASF Design Principle
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Most manufacturers' cars have grown heavier as the years have gone by. This isn't true of Audi. Quite the opposite: more than ten years ago the Audi A8 and the Audi A2, with their aluminum bodies, put a stop to this never-ending spiral of increased weight. Since then, Audi has developed this pioneering weight-saving technology more and more. Today ASF (Audi Space Frame), as it is now known, is used for four Audi models: the TT, TT Roadster, R8 and A8. ASF: the three letters stand for Audi Space Frame – the technology with which Audi has completely reinvented car body construction. ASF is a breakaway from the problem of spiraling weight that has its origins in the growing demands that a modern car must satisfy. The new principle makes a major contribution to the dynamic performance and high efficiency of these Audi models. The TT 2.0 TDI quattro, for example, with its 125 kW (170 hp) diesel engine, sprints up to 100 km/h from a standstill in 7.5 seconds, and has a top speed of 226 km/h. Yet its average consumption is only 5.3 liters of diesel fuel per 100 kilometers, a sensationally low figure. ASF technology The framework of an ASF body consists of extruded aluminum sections and pressure castings. This frame carries the sheet aluminum elements, for example the roof panel, which are rigidly connected to it and help to withstand loads on the body. The elements of the Audi Space Frame are very varied in shape and cross-section, depending on the tasks they have to perform. Like the bones of a human skeleton, they combine optimal function with low weight. The big advantage of extruded sections is their design flexibility. The side sills of the Coupe and Roadster bodies, for instance, look identical, and the same tools and machines can be used to produce them. Inside, however, they are topology-optimized using bionic principles, and the ribs that govern their rigidity therefore have different patterns – the Roadster needs greater rigidity in this area than the Coupe. In all cases, the extruded sections used for the TT's body are made from advanced aluminum alloys, to increase their strength still more and lower their weight at the same time. The castings, which withstand extremely severe loads, are primarily deployed where high forces are introduced locally and where intelligent multifunctionality is required. A good example is the A-post node, a hi-tech multifunctional component that links the side member, sill, A-post and wind-shield cross-member together. Like all these aluminum castings, it is notable for precision geometry and maximum use of the available space. The TT Coupe and Roadster The TT 2.0 TFSI weighs only 1,260 kilograms unloaded – a splendid figure for a sports car. Its body weighs a mere 206 kg; this figure is made up of 140 kg of aluminum (68 percent) and 66 kg of steel. An equivalent body built in steel by conventional methods would be almost 100 kg heavier. The aluminum used in the body consists of 63 kg of sheet, 45 kg of castings and 32 kg of extruded sections. The Roadster tips the scales at 251 kilograms. Audi's wealth of experience is invaluable when aluminum and steel components have to be joined. Various methods are employed: punch riveting, clinching and adhesive bonding. The problem of contact corrosion between these two metals has been solved by choosing adhesives that form an isolating layer. Camera systems monitor their correct application. A fourth joining technique is new: self-tapping screws inserted by robots generate friction that melts the surface of the component, so that they can penetrate completely into the material and form a rigid connection. Another innovative concept used on the TT is the aluminum zero-gap joint between the roof and the side section, which is produced by laser welding. The Audi TT with its hybrid ASF, Low weight is one of the keys to captivating road dynamics and high efficiency. To reduce a car's weight by 100 kilograms is to improve its fuel consumption by about 0.3 l/100 km, and also to emit between 7.5 and 12.5 grams less of CO2 per kilometer. Customers and trade experts alike have praised this tendency: at the end of 2006, Audi's new hybrid body design principle received the Euro Car Body Award, the most important European trophy for innovation in body construction. Audi has already gained this award in 2003, for the ASF used for the Audi A8. Audi Technology ABC • Aluminum is an element • Audi is continuing to shape the future, |
Audi Q7 : Review
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Wednesday, December 17, 2008
2011 Audi A5 Sportback - Car News
| Audi brings back the five-door sedan-hatch. And we like the idea. In the 1970s, many European carmakers offered four-door cars with a sloped roofline and a large hatch for accessing the cargo hold. Beyond the simple 'hatchback' descriptor, designations such as fastback or aeroback were used in cases where the trunk opening remained small. The style even became fashionable in the U.S.—think Buick Century, Oldsmobile Cutlass, or Chevrolet Citation—but the fad was over by the mid-'80s. Only niche vehicles, such as the Saab 9000 or the Mazda 6 hatchback, carried on, as the typical sedan reclaimed its territory. Today, though, we're seeing a resurgence of four-doors with wide hatchbacks, led by the German premium brands. The movement is being spearheaded by the styling leaders at Audi, as well as by the somewhat less elegant Porsche Panamera. The shape brings more practicality than a notchback sedan, and it makes for a beautiful, sleek roofline. Plus, they're kind of '70s retro. What's not to like? Audi is so confident that customers will go for this style that two models are in the wings: the A5 Sportback, based on the A5 coupe, and the A7—see our spy shots here—which will be positioned between the A6 and A8 sedans. Both vehicles will rely on the same modular architecture, but the A7 is large enough to be positioned comfortably above the A5 Sportback. |
Four Audi Models Earn 2009 Consumer Guide® Automotive Praise
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Sunday, December 14, 2008
Audi S5 to get new LED tail lamps
| The Audi A5/S5, one of the best looking cars ever and one of our favorite cars, keeps getting better. After some time ago the Ingolstadt company announced that the S5 will get a new 3.0 liter supercharged engine that will deliver 333 hp (half evil?), a couple of days ago they said that all S5 models that will be built starting with December will get a new displacement for the tail lights, including LED lights (somehow similar to the ones on the A6 facelift), plus an optional third generation MMI system. The MMI III infotainment system features faster graphics, a large hard disk drive for storage of music files etc, and a topographical or 3D representation of images. The new MMI III will also be available for the A8, Q5 and facelifted A6. The 'regular' A5 will also have the system as an option, but the new LED lights are only available for the S5. Source: Qarsi.de (Via World Car Fans) |



