- Why the new super gears are so important
- Why this Bentley is so atypical
- Extremely large translation crawler
- The aesthetic appeal of the AMG GT
- Performance is diverted
- Lots of horsepower for very tough terrain
Why the new super gears are so important
Finely tuned: The nine-speed automatic transmission from Mercedes, which is offered, for example, in the GLE
Cars with automatic transmissions used to be considered limp and thirsty. Modern circuits with double clutches are now proving the opposite. They have up to ten courses – and actually even more.
HSwitching on is still very important for many people for sporty driving, even if sports cars like the Porsche 911 have long been offered with dual-clutch transmissions as standard. For cars with a transverse engine and front-wheel drive, and this applies to 75 percent of all new cars, the designers are now going one step further. Transmissions with eight, nine and ten stages should help to reduce fuel consumption – and still not leave a sloppy impression.
Next year, VW wants to lure its mid-range models with a new automatic transmission with double clutch and ten gears, which offers a high level of comfort and great fuel-saving potential. Experts generally estimate the consumption reduction through improvements in the drive train to be up to 20 percent. Peter Gutzmer, Head of Development and Vice President of the automotive supplier Schaeffler, says: "The gear ratio will be more important than before."
Why this Bentley is so atypical
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Expensive speed: the Bentley GT3-R starts at 282,625 euros. This makes it 100,000 euros more expensive than the Continental GT V8S, which costs at least 184,450 euros. That’s what the V8-B is for…iturbo in a special model …
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… 52 HP and 20 Newton meters more powerful. Above all, because of the shorter gearbox and the tighter setup, you get a racing driver feeling much faster. And theno…ch …
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… Bentley relies on noblesse in the Continental GT3-R. Anyone who expected narrow carbon shells and bare sheet metal in the interior will find finely quilted leather seats and carbon trim… surprised. In order to then reduce the weight of the British coupe, which is limited to 300 units …
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… the manufacturer left out the back seat. The outside of the GT3-R also looks …
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… but not after giving up. The rear spoiler is made of carbon, the bonnet has two brisk air ducts, these are all rather atypical features of the British…a noble brand.
For the Wolfsburg-based company, so-called downspeeding is a way of further reducing consumption. With the new ten-speed dual clutch transmission, the designers guarantee driving at low speeds in the range of the most economical engine operation – just above the idling speed of the engine. VW intends to introduce the new engines with a maximum torque of 550 Nm in an all-wheel-drive SUV in 2016 at the earliest, says Wolfgang Voege, Team Leader Concept Development at Volkswagen.
The manufacturers have to act. Because billing is done in fleet mode, which can result in a drastic penalty payment. The CO2 limit of 130 g / km will apply in the EU until 2021 – corresponding to around 5.0 liters of diesel or 5.6 liters of petrol per 100 kilometers. This will be followed by a reduction in the CO2 limit value to 95 g / km by the end of 2024 – this corresponds to 3.6 liters of diesel or 4.1 liters of petrol.
Extremely large translation crawler
Multi-stage automatic transmissions are therefore important in order to achieve the fuel-saving goals. "Just seven forward gears can be enough to achieve the optimum in terms of fuel consumption," says Stefan Pischinger from the Chair of Internal Combustion Engines at RWTH Aachen University. “It also increases driving comfort.” Gears with extremely high gear ratios, so-called crawlers, guarantee a very high level of traction and are suitable for off-road vehicles when they are driving very slowly.
The aesthetic appeal of the AMG GT
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It’s all a question of profile: the 4.55-meter-long Mercedes-AMG GT is a classic beauty with its extremely long bonnet. The pleasant ones …
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… Proportions stem from the basic technical concept: the V8 biturbo engine sits at the front, but as far behind the front axle as possible, and the transmission moved towards the rear axle.
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In the interior, the very wide center console testifies to the engine that is set far back and which simply needs a bit of space – and the center console is noticeable when driving …warms up.
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The most interesting rotary switch is located on the front left of the center console. You can use it to select the driving modes: Comfort, Sport, Sport Plus and Race are available, and if you can …
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… If you choose “Individual” from the menu, you can then choose how you want the steering, throttle response, shift times or damper settings to behave.
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The various functions are then also displayed on the central monitor above the four ventilation nozzles. It’s all well thought out and nicely done, but the …
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… actual music is playing up front, under the hood. The four-liter V8 develops 462 hp in the AMG GT and 510 hp in the GT S tested, with maximum torque being 600 and respectively …650 Newton meters, and the sound is simply unbelievable. Above all …
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… In the GT S with its switchable performance exhaust system, a first-class V8 rumble is generated. In the sportier speed levels it is also almost obtrusively loud, and …when switching gears it pops and scoffs from the exhaust pipes that there is some sort of thing.
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The hatchback is unusual for a sports car with a star, but refers to the historic SL models, especially the legendary Uhlenhaut Coupe, of which only two are… were built. Under the …
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… large tailgate there is 350 liters of storage space. The loading sill is high, but otherwise everything is easily accessible. In return, the AMG GT saved the two emergency seats for …Co-drivers number two and three (which are still there on the Porsche 911), yes …
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… We just want to forgive this wonderful driving machine for that. The car will be available from March 2015, with the more powerful GT S initially coming on the market for 134,351 euros, later…ter the GT for 115,430 euros.
The engineers are looking for the most efficient transmission for the transversely installed front-wheel drive. The independent transmission manufacturer ZF Friedrichshafen with its nine-speed automatic converter 9HP is considered a pioneer. It has been used in all-wheel drive vehicles since the start of production in 2013. The Range Rover Evoque started, followed by the Jeep Cherokee and Jeep Renegade and now the Mini SUV Fiat 500X and most recently the Honda CR-V 1.6 i-DTEC.
The ZF transmission fits in well with the “front-transverse” drive formation that dominates the world. And, according to the manufacturer, it also uses 16 percent less fuel at 120 km / h than today’s six-speed automatic machines.
Performance is diverted
The circuit from VW should be even better. The ten-speed DSG actually has twelve gear steps. Ten of these gears are shifted automatically without any interruption of tractive power. There are, however, two additional gears, “a crawler gear with an extremely short gear ratio and a super overdrive, which is supposed to lower the engine speed at high speeds,” says VW man Voege.
Lots of horsepower for very tough terrain
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Ford is showing the top model of its successful F-150 pick-ups at the Detroit Auto Show.
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The Ford F-150 has been the best-selling car in the US for years and is now in its thirteenth generation.
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Ford man Joe Hinrich presented the colossus to 500 journalists.
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Instead of the previous 6.2-liter eight-cylinder, the Ford F-150 Raptor is now powered by a 3.5-liter six-cylinder.
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For better adaptation, the high-performance version of the pick-up has different driving modes. Including the programs normal, road, all weather and also mud and… Sand mode. LED headlights, a camera system for better all-round visibility and a high-quality interior provide comfort.
The engineering skill lies in the newly developed VW transmission with the internal designation DQ511. The power flow within the transmission is diverted by electronic control as well as two new shift elements and a so-called return. At around 95 kilograms, it is only five kilograms heavier than its predecessor, the seven-speed DSG, but has exactly the same dimensions. "Perfect downspeeding" is possible with the DQ511, says Voege.
The nine-speed transmission from ZF should also soon be offered in front-wheel drive cars.
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