Концепция шасси TDI и FSI

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Концепция шасси Touareg TDI и FSI

Оригинальный пресс-релиз на английском

Powertrain Concept II

Touareg V6 FSI, V6 TDI, V8 TDI:
Petrol and diesel engines with significantly improved fuel consumption

Current V6 FSI as entry engine consumes 2.5 l/100 km less than before
V6 TDI with 7.4 l/100 km fuel consumption; new V8 TDI with 800 Nm torque

Wolfsburg/ Florence, March 2010. The new Touareg will be offered with two petrol and two diesel engines at its European market launch. All engines were optimised or are entirely new to the programme and fulfil the Euro-5 emissions standard. Their fuel economy values are on average about 20 percent better than those of the previous model. Among the petrol engines, Volkswagen is introducing the V6 FSI with 206 kW/ 280 PS as the entry-level engine. The most power¬ful petrol engine is the turbocharged V6 TSI of the Touareg Hybrid (245 kW/ 333 PS). Two turbodiesels top off the engine range: The V6
TDI outputs 176 kW/240 PS, and the completely new V8 TDI features
250 kW/ 340 PS. All engines are paired with a newly developed 8-speed automatic.
The V6 engines have a Stop-Start system as standard equipment; the powertrains also utilise regenerative braking to recover kinetic energy. In addition, all engines have an optimised thermal management system; deactivating the water pump in the cold-start phase heats the engines to their operating temperatures much more quickly, resulting in a fuel savings of 0.3 l/100 km. Superfluous on all Touareg engines now is the classic oil dipstick. In the new generation of the SUV, an electronic dip¬stick based on ultrasonic technology is used instead. The engine sump had to be modified accordingly. The driver can now comfortably read the oil level from the instrument panel.

V6 FSI with 280 PS
The entry-level engine in the petrol area, the optimised V6 FSI, con¬tinues to output 206 kW/280 PS. At 9.9 l/100 km it consumes an in¬credible 2.5 litres less than the previous version. This combined fuel consumption is equivalent to CO2 emissions of 236 g/km - 60 g/km less than before.
The smooth six-cylinder unit develops a maximum torque of 360 Newton-metres, which is constantly available between 3,000 and 4,000 rpm and guarantees superior high-torque performance. The power of the 24-valve engine peaks at 6,200 rpm.
Compared to the V6 FSI of the previous model, the updated engine is equipped with a new engine controller (MED 17.1.6), which among other things integrates the new thermal management system, Stop-Start w and regenerative braking. Other modifications: The conversion to a new, more precise machining process for the cylinder crankcase, modified piston rings and weight-optimised forged pistons produce lower friction values with immediate fuel consumption reduction.
Changes were also made in the air intake system to modify the charge changing process.
Another innovation in the area of emissions control: Here two ceramic main catalytic converters near the engine are used instead of the previous pre-converter and main catalytic converter system to assure conformance to the Euro-5 emissions standard. In addition, a newly positioned lambda probe makes a contribution toward impressively fulfilling the ULEV-2 emissions standard in the USA. The Touareg V6 FSI is 228 km/h fast and accelerates to 100 km/h in just 7.8 seconds.

V6 TDI BlueMotion Technology with 240 PS
Based on engine power level, entry into the world of the Touareg among the diesels begins with an advanced offshoot of the successful V6 TDI that still outputs 176 kW/240 PS (at 4,000); it will be available right at market launch. Like all Touareg versions, it also satisfies the Euro-5 emissions standard. In North America, a version tailored for the USA market will be launched.
The European version of the common rail turbodiesel (injection pressure: 1,800 bar) with 2,967 cm3 displacement develops a strong 550 Newton-metres torque from 2,000 rpm and consumes a pionee¬ring low 7.4 l/100 km (equivalent to 195 g/km CO2); this is 1.9 litres less than on the previous 240-PS version. CO2 emissions were also re-duced: by 49 g/km compared to the previous Touareg V6 TDI and a respectable 24 g/km compared to the already very good predecessor with BlueMotion Technology and 168 kW/225 PS. The new generation of the Touareg V6 TDI BlueMotion Technology reaches a top speed of 218 km/h and accelerates to 100 km/h in a sporty 7.8 seconds.



New V8 TDI with 340 PS
Entirely new to the Touareg programme is the V8 TDI with 4,134 cm3 displacement and 250 kW/340 PS (at 4,000 rpm). The new V8 TDI, like the V6 TDI, has common rail direct injection. In this case, the injection pressure reaches 2,000 bar. At 9.1 l/100 km (equivalent to 239 g/km CO2), its combined fuel consumption is extremely good considering its enor¬mous power and incredible maximum torque of 800 Newton-metres (between 1,750 and 2,750 rpm). By comparison: The retired previous
version, a V10 TDI with 230 kW / 313 PS, had a combined fuel con¬sumption of 11.9 litres - 2.8 litres more. In parallel, CO2 emissions are reduced by about 25 percent. This engine also has a specific thermal management system with switched water pump to shorten the warm-up phase.
The Touareg V8 TDI reaches a top speed of 242 km/h and accelerates to 100 km/h in only 5.8 seconds - like a sports car.

Stop-Start system in detail
A look at the functionality of the intuitively operated Stop-Start sys¬tem for the V6 models is interesting: The driver approaches a red light with the Touareg and brakes it to a stop. At this moment the engine is automatically stopped. The text "Stop Start" now appears in the multi¬function display. As soon as the light turns green, the driver releases the brake, the engine starts, the "Stop Start" indicator disappears, and the driver resumes driving.
Regenerative braking in detail
Regenerative braking helps to utilise the energy used in driving as ideally as possible. During coasting and braking phases - i.e. when¬ever the driver simply releases the accelerator pedal or decides to brake - the system elevates the voltage of the alternator (generator), and it is used to intensively charge the vehicle's battery.
Thanks to this alternator control as a function of engine load, and the optimally charged battery that results, the voltage of the alterna¬tor can be reduced when this is desirable - e.g. when accelerating or constantly maintaining a desired speed. The alternator may even be shut off entirely. This relieves the engine, which in turn reduces fuel consumption. Regenerative braking requires a special software for energy management and modified engine controller software.