From the end of this year, the Audi A3 Sportback e-tron is ordered. On the "Future Lab tron experience", Audi also on other tron models. (Photo: Audi)
"Anyone who has visions should go to the doctor," said former Chancellor Helmut Schmidt as Chancellor. Audi engineers agree with the statement not when it comes to environmentally friendly, ie sustainable mobility with cars, fueling the "E-Gas" and current .
Audi development chief Wolfgang Dürheimer has spoken on the "Future Lab tron experience" in Berlin of the great experiences that Audi for five years with the electric cars A1 e-tron to the Le Mans-winning R18 e-tron Quattro and the Hybrid cars won in the series Q5, A6 and A8.
CO2-free in the city and rural
For Heinz Hollerweger, chief of the total vehicle development from Audi, there is no future, "CO2-free driving in the city and country," he said. The know-how is now in plug-in hybrid Audi A3 e-tron concept is used, which may be purchased from the end of the year. Dürheimer says nothing about the price, but when presented to the assumption of 38 000 euro was no vehement opposition. But first Audi starts in about six months the delivery of the A3 Sportback g-tron, which goes with "e-gas" CO2 neutral when his driver this "green gas" fueling. It is methane, which is obtained from the conversion of wind power. The plant in Emsland fed from the fourth quarter of e-gas into the public grid for natural gas (CNG: CH4). Produced there using electricity from water (H2O) in the electrolytic process, hydrogen (H2) and oxygen (O2).
Emergence of e-gas
The E-gas is produced, in which all the carbon dioxide (CO2) from a biogas production and the hydrogen from the electrolysis over a catalyst to form methane (CH4) is converted and fed into CNG network. The plant is expected to produce in the Emsland region of Audi e-gas 1,000 tons, which is sufficient for 1,500 A3 Sportback g-tron when they drive 15,000 km a year. Is controlled fueling the "green gas" on a Audi-tron g card at all biogas stations and two thirds of the existing CNG taps. The CO2 emissions are 95 grams per kilometer in the EU driving cycle NEDC, representing a consumption of less than 3.5 kg E-Gas/CNG or less than 3.6 liters of diesel per 100 km. The A3 Sportback g-tron will cost 25,900 euros.
Fast traveling with gas drive
The 1.4 TSFI engine of the A3 Sportback g-tron shows in the first driving tests, that the e-gas is not "soporific" acts. The 81 kW/110 hp power and 200 Nm of torque make the "gas man" in less than eleven seconds legs - from zero to 100 km / h Who wants to gas is about 190 km / h The bivalent drive brings with it the volume of 27 kilograms (200 bar) E-Gas on board over 400 km in the EU cycle and with the additional fuel tank to a total of over 1,300 km. "CO2-free over land and zero emissions in town is not a vision," says lead developer Hollweger, "the show A3 Sportback and g-tron e-tron".
Designed as a plug-in hybrid A3 Sportback e-tron combines the best features of the combustion engine and the electric drive. Unlike a hybrid, where the electric motor is supportive, the driving of the plug-in is designed so that the gasoline engine has to make the "Support". This leads to outstanding ride comfort and high values, as the first show rides on the former airfield of Tempelhof Airport.
50 km all-electric
The A3 Sportback e-tron all-electric drive 50 km and accelerates in 4.9 seconds from standstill to 60 km / h - 7.6 seconds from 0 to 100 km / h The driver chooses whether he wants to be on the move in the electric operating efficiently or sporty - sporty waiver is here, but only in the range as it looks on the screen. In parallel drive train of the A3 Sportback e-tron cooperate a 1.4 TFSI gasoline engine with 110 kW/150 hp and 250 Nm of torque with a 75 kW/102 hp payable electric motor - the latter comes as the hybrid module and the new dual clutch transmission (DCT ) from the VW plant in Kassel.
In the system of front-wheel drive carries the "double heart" a total of 150 kW/204 hp and 350 Nm of torque - up to 100 kph it is already electrically But the boot volume you really have to practice renunciation It is because of the additional components in order 100 liters to 280th. shrunk liters - 1,120 liters are there but when the rear seats folded.
Anticipatory shop
The 8.8-kWh lithium-ion battery (Panasonic / Sanyo) sits under the back seat in the rear seat forward of the rear axle. For their cooling there are two low-and high-temperature cooling circuits, which also hold the power electronics (Bosch) at the optimal temperature, stores 8.8 kWh of energy, enough for 50 kilometers purely electric and therefore emission-free range. The driver of the A3 plug-in can during highway driving, for example, select the operating mode of a total of ten, in which the battery is charged to purely electrically "streamers" in the destination. The shop in the garage on the 230-volt connection with ten amps takes 3.45 hours to more than one and a half hours faster with the 380-volt power outlet (16 amps).
Sporty in both modes
The Audi A3 Sportback e-tron is sporty to drive in pure electric hybrid operation as in spite of the hybrid Specks of around 300 kg 1850 kg curb weight. Its maximum speed is the manufacturer at 222 km / hr at - of course only with petrol engine operation. Its total range is 940 km, because of the distance of 50 km to 40 liters of premium electric driving are on board. According to the ECE standard of consumption per 100 km is on average 1.5 liters of fuel (CO2 emissions: 35 grams per kilometer), bearing in mind that this test is started with full battery.
"Hype about all-electric driving
The A3 Sportback e-tron interpreted the principle of sustainable mobility to a new, pioneering Art Audi development chief Wolfgang Dürheimer is certain. "There is a hype in the market trigger all-electric driving" The demand for subsidies for electric he answered with a clear "No". Dürheimer, "It's the wrong way to build up his business on subsidies."
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