36 Studenten basteln vier Tage lang in der Audi R8-Manufaktur in an innovativen Lösungen, um den Materialfluss in der Logistik zu verbessern.
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Der neue Audi Q5 hält mit seiner optionalen Luftfederung adaptive air suspension für jede Fahrsituation die ideale Bodenfreiheit bereit. So hat der Fahrer stets die Wahl zwischen Komfort und dynamischem Fahrverhalten.
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Verbrauchsangaben Audi Q5:
Kraftstoffverbrauch kombiniert in l/100 km: 5,2 – 4,9; CO2-Emission kombiniert in g/km: 136 – 129
Angaben zu Kraftstoffverbrauch und CO2-Emissionen bei Spannbreiten in Abhängigkeit vom verwendeten Reifen-/Rädersatz.
Weitere Informationen zum offiziellen Kraftstoffverbrauch und den offiziellen spezifischen CO2-Emissionen neuer Personenkraftwagen können dem "Leitfaden über den Kraftstoffverbrauch, die CO2-Emissionen und den Stromverbrauch neuer Personenkraftwagen" entnommen werden, der an allen Verkaufsstellen und bei der DAT Deutsche Automobil Treuhand GmbH, Hellmuth-Hirth-Straße 1, D-73760 Ostfildern oder unter www.dat.de unentgeltlich erhältlich ist.
Audi stellt sich der Digitalisierung – im Fahrzeug und in der Produktion. In der sogenannten Smart Factory ist der Mitarbeiter nach wie vor der entscheidende Erfolgsfaktor, denn er treibt die intelligente und vernetzte Fabrik Stück für Stück voran.
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Verbrauchsangaben Audi A3: Verbrauchsangaben Audi A3: Kraftstoffverbrauch kombiniert in l/100 km: 7,1 - 3,7; CO2-Emission kombiniert in g/km: 163 - 98; Audi RS Q3: Kraftstoffverbrauch kombiniert in l/100 km: 8,6 - 8,4; CO2-Emission kombiniert in g/km: 203 - 198
Further information on official fuel consumption figures and the official specific CO2 emissions of new passenger cars can be found in the EU guide "Information on the fuel consumption, CO2 emissions and energy consumption of new cars", which is available free of charge at all sales dealerships, from DAT Deutsche Automobil Treuhand GmbH, Hellmuth-Hirth-Straße 1, D-73760 Ostfildern, Germany and at www.dat.de.
There is an attractive new member of the engine lineup for the TT family – the 2.0 TFSI with 155 kW (211 hp). The four-cylinder engine, in which the Audi valvelift system varies the lift of the exhaust valve, delivers 350 Nm (258.15 lb-ft) of torque to the crankshaft. Paired with a manual transmission and front-wheel drive, its engine accelerates the TT Coupé from zero to 100 km/h (62.14 mph) in 6.1 seconds on its way to a top speed of 245 km/h (152.24 mph). The two-liter consumes only 6.6 liters of fuel per 100 km (35.64 US mpg) in the EU cycle and emits 154 grams of CO2/km (247.84 g/mile). This represents an improvement of 1.1 liters per 100 km, or 14 percent, over the previous model engine.
The 2.0 TFSI trumps its predecessor in the TT, which an international panel of journalists had honored as “Engine of the Year” multiple times in a row since 2005, in every criterion. It is part of the 888 model line, which Audi introduced in 2007. Known as the “Global Engine,” the versatile new engine family is suitable for use worldwide in all of the Group’s brands. The engines are being produced in large numbers at factories in Györ, Hungary, Shanghai and Dalian, China, and at a number of additional locations.
The 888 engines embody Audi’s downsizing philosophy: substituting engine displacement with forced induction. All of the engines in the family are compact and lightweight. They achieve power and torque figures that were reserved for six-cylinder engines just a few years ago. They combine a high level of cultivation with low fuel consumption and meet the most stringent emissions standards.
With all of these strengths, the new four-cylinder engines cover the complete spectrum from the compact to the luxury class. The same 2.0 TFSI with 155 kW (211 hp) now used in the TT model series is also used in conjunction with an electric motor in the Audi A8 hybrid technology study, which provides a look ahead to the future Q5 hybrid.
The crankcase of the undersquare engine, which displaces 1,984 cc (bore x stroke 82.5 x 92.8 millimeters) (3.25 x 3.65 in), essentially has only the cylinder spacing of 88 millimeters (3.46 in) in common with the previous engine. It is made of cast iron, which offers good acoustic damping, but weighs only 33 kilograms (72.75 lb). Its rigid basic structure helps to eliminate drumming and vibrations. Two balance shafts counter-rotate in order to eliminate the second-order free mass forces.
The chain for the balance shafts has also been designed for quiet running. A second chain drives the oil pump, which uses volumetric flow control and two-stage pressure to save roughly 0.2 liters of fuel per 100 km. A third chain drives the two camshafts.
All chains have been designed to be maintenance-free over the life of the vehicle.
The intake camshaft can be steplessly rotated 60 degrees relative to the crankshaft; its actuator responds particularly spontaneously due to the compact design with integrated control valves.
The entire engine is characterized in particular by a high degree of integration of the individual components. The engine ancillary bracket, for example, consolidates the oil cooler, the oil filter and the two oil pressure switches. This reduces the overall dimensions of the engine and facilitates its use in multiple models. The upright filter is easily accessible during servicing, saving time and money. The water pump, the thermostat and the temperature sensors are located in a single housing.
As with people, however, the true intelligence of an engine can be found in the head – in this case the cylinder head. The 2.0 TFSI combines Audi’s gasoline direct injection (FSI), turbocharging and Audi valvelift system technologies. The FSI technology harmonizes perfectly with the forced induction, because the evaporation of the directly injected, intensively swirled fuel cools the combustion chambers. This solves a traditional problem with turbocharging – the large amount of heat produced and the tendency to knock, which forced designers to reduce the compression.
The 2.0 TFSI features 9.6:1 compression – a ratio that provides for high efficiency. Injection pressure in the fuel rail is 150 bar. The fuel is precisely distributed in the combustion chamber by the six-port injectors.
A water-cooled turbocharger is responsible for filling the cylinders. Its turbine housing is integrated into a module that also includes the manifold. An optimized turbine wheel improves initial response at low engine speeds. The intercooler is characterized by its high efficiency, low weight and small size. In the aspiration system, the charge motion flap generates a targeted flow of air into the cylinders to ensure that a high-quality, homogenous mixture is produced.
The Audi valvelift system AVS further increases power, torque and efficiency by adjusting the lift of the exhaust valves in two stages as a function of load and engine speed. This enables a “flushing gas flow,” i.e., optimal filling with the smallest possible residual gas fraction. For the driver, this means the optimal dynamic initial response with the very early availability of a high amount of torque. The design with the so-called cam elements, which are electromagnetically actuated and positioned mechanically on the camshaft, is compact, lightweight and thus can cope with the entire range of engine speeds.
High efficiency with maximum driving enjoyment will guarantee that this engine-vehicle combination will continue the success enjoyed by Audi TFSI engines.
Further information about the official fuel consumption figures and official, specific CO2 emissions of new passenger cars can be found in the “Guide to fuel consumption, CO2 emissions and electricity consumption of new cars,” which is available free of charge from all sales outlets and from DAT (Deutsche Automobil Treuhand GmbH), Hellmuth-Hirth-Strasse 1, 73760 Ostfildern-Scharnhausen, Germany (http://www.dat.de).