Thursday, October 13, 2011

Direct connection

And it sounds convincing. Especially if Direktshaltgetribe, ie the new DSG gearbox with shift without breaking the flow of power, installed a 250-hp four-wheel drive Audi TT 3.2 quattro - the best of all mass-produced Audi TT.Avtomobili how people live their lives differently. Someone comes into the world without the noise, and a gray mouse lives just quietly goes away. Someone first loudly declares itself, but then quickly deflates. Someone will immediately become a classic ... The Audi TT interesting fate. Designed as a low-cost youth sports car based on the Golf platform, the fourth generation of this car eventually becomes better and better. He grows up and, like good wine, gaining vkus.Pomnite our first tests of the Audi TT? Like all great - great design, the interior is incomparable, turbo 1.8T are quite powerful and economical ... But the gloss in the settings of the chassis was not. But the mistakes were - and in suspension, and aerodynamics. Because of the lack of a spoiler on a beautiful sloping "tail" rear-wheel drive TT acted too high a lift, which, coupled with a tendency to drift led to accidents on expressways avtobanah.Spoyler added, reconfigured suspension. But still every time we sit behind the wheel of the TT, it seemed - and how little horsepower, a little more clarity reactions ... The six-cylinder Audi TT 3.2 quattro - man of integrity. Finally, all at the highest level-even in six-cylinder version of the aerodynamics of different - the front apron with a spectacular "gills" in the wheel arches and a rear spoiler developed reduced the drag coefficient Cx of 0.34 to 0.32 and, on the assertions of Ingolstadt, reduced lift force. Cool rod with a bright pickup after 4000 r / min, the magnificent "thoroughbred" sound of the engine. The chassis is ideal for almost 250 horsepower. Tougher stabilizers, shock absorbers and springs, larger front brake discs, cool-minded system ESP, which quickly corrects drift outward turn without losing speed ... Steering wheel tight parking, but the effort is growing is absolutely adequate rotation of steering wheel - at least, for all the maneuvers at speeds of up to two hundred. At the same time feel on the steering wheel all the details - covering the wheels, the level of lateral acceleration, the profile of the asphalt. The last component, "comes" to the leather rim only in the form of filtered and softened small vibrations - only as information, not more. And the sound of the engine even at m Maximum speed is not quite razdrazhaet.Plyus wheel drive. Watch out, Porsche Boxster! But in Audi TT 3.2 quattro is yet another trump card company. No, not design, but with this, the TT is all right. Direktshaltgetribe! This word - metallic clank of gears, flipping armature control hydraulic valves and gates. Direktshaltgetribe - a magical spell that gives the DSG transmission properties of the best "machine", while retaining all the benefits of the "mechanics". Or, at least, almost vse.V first approximation DSG - is a fashionable nowadays automated manual: squeeze the clutch and servo transfer switch for the driver. These boxes are well known - it's BMW SMG, Alfa Romeo Selespeed, Mercedes-Benz Sequentronic, Opel Easytronic ... But the DSG transmission is fundamentally different from all those "tronics". It seemed united two such boxes, each - with his clutch. One "box" is responsible for the inclusion of the odd gears (first, third and fifth), the other - even: the second, fourth and sixth. What gives? Very simply - an opportunity to include two programs at once! This box - preselektivnaya. While there is acceleration in first gear, second gear already engaged, but rotate idly. When the computer determines the switching time (this time the developers refer to kiss point, «point of the kiss"), two hydraulic clutch at the same time let go first and close the second, passing the time by the engine "by hand" from first gear to second. Now is the second active transmission - and a box of pre-pinion gearing introduces the next, third gear. As soon come next kiss point, the necessary electronics give the team - and the box, simultaneously manipulating two clutch smoothly "pass" the torque from the second to the third. And so on - until the sixth. And while the sixth box, and immediately turn on fifth gear - just in case, if the engine speed will drop and will need more power. Clicking on the gas - and 0.2 seconds for two simultaneous dance clutch toggles to pull back from sixth to pyatuyu.Pravda, 0.2 - does not record time. An experienced driver spends on fast switching roughly the same as a regular automatic gearbox SMG II in the BMW M3 can "distort" the transfer of all for 0.08! But the "extreme" transmission BMW SMG II - that being said, a special case. But all the other "tronics" unconditionally concede box DSG - and speed, and usability. A recent example - Citroen C3 with a box SensoDrive, on which you can read in this issue of the Auto Review. The main complaint - in automatic mode, the clutch opens at unpredictable moments for the driver, causing unpleasant and unexpected klevki. Since DSG is impossible in principle - for dual-clutch shift occur without breaking the flow of power from the engine to the wheels, as in "automatic": If the selector box stylish DSG on Audi TT 3.2 quattro is in position D (Drive), then the box is indeed like a good "machine". Switching soft, almost imperceptible, without jerks and jerks. Except sometimes from the bottom of the crack distributed actuator boxes - exactly the same sounds are emitted and alfovsky Selespeed. But it is necessary to transfer lever in Sport mode S, as the TT is changing. Only that the car in "Drive" rolled in sixth gear with a nice rumbling bass - and suddenly the box goes directly to the second! Switching getting shorter, each program "rests" almost to a maximum of 7000 rev / min. Simultaneously with the inhibition of active pereschelkivaetsya box "down", accompanying all this impressive short peregazovkami.I the faster you go, the more adequate working Direktshaltgetribe! The box begins to constantly "click" send up and down while holding the arrow next to the tachometer 5000-6000 rev / min. Riding in a sporty style - one of the easiest tasks for computer DSG: Know yourself to shift gears, one after another, sequentially. But guess which of the programs you want to include in advance when moving in a ragged pace, much harder. What's ahead - turn in front of which a fourth must be changed to the third? Pass, which will need second gear? Or straight, where you can safely go to the fifth, and followed on the sixth? Forecasts preselection gear DSG computer help adaptive algorithms using the principles of the so-called fuzzy logic. Good for programmers - a box of "slow" is very rare. In the worst case (it's one clutch gear change - even with the even or an odd to odd) switching is 0.9. But even then the situation saves a continuous flow - change occurs through "intermediate" odd gears, and a sudden loss of traction or braking torque from the engine does not arise! Mode S, by the way, so good for active driving, that I almost did not use the manual shift - no lever or the keys for steering rim, as on Audi RS6. Do DSG gearbox really deserves the title best automated "mechanics"? Alas, there is a misfortune - a hitch at the start. Suppose, Audi TT is a traffic light. Green. The driver presses the gas - and ... And while the clutch will not work until the engine to spin from the "bottom", a powerful acceleration will not follow. The whole second home lethargy! However, there is one way - you can activate the quick start, which, similar to Formula 1, is called launch control. This requires three things: move the selector to the mode S, by pressing a large button on the toolbar to disable ESP and sink into the floor while the two pedals - the gas and brake. Tachometer needle jumps up, but then "hangs" at around 3200 rev / min - at the speed of maximum torque. Now we need to let go of the brake - and the TT will jerk away. In spite of all the 320 Nm of torque - with virtually no slippage. All wheel drive! But in this version of launch control is good except for those who like to splurge a sharp start with a traffic light. Or for haters Bernie Ecclestone. After all, Audi TT 3.2 quattro with launch control function will begin selling in Europe in the middle of summer - exactly at the time of the decision to Ecclestone's Formula 1 ban "launch aid" ... electronics prices in Europe for the most powerful Audi TT 3.2 quattro is known - 41 200 EUR 44 000 for the coupe and roadster for. It is interesting that no other boxes, except for DSG, for six-cylinder Audi TT is not provided. Well, right. Normal "machine" will only get worse - and in terms of efficiency, and accelerating the dynamics. Normal "engineer"? Most likely, the acceleration with the manual six-speed would be half a second more intense - at least by the fact that you can start with any speed, but not with those sets launch control. By the way, the latest "hot hatchback» Volkswagen Golf R32 with the exact same engine with DSG transmission accelerates from "zero to hundred" in 6.4 s, and with the usual box (available and such) - for 6.0 sec. But those 0.4 seconds - quite a reasonable price to pay for a unique combination of comfort and sportiness, which gives the DSG! A fuel with a new box may be even lower than with the "mechanics". Because electronics are much more used sixth gear than the driver. Pay attention to the economy of the six-cylinder TT: only 13.6 l/100 km in the urban cycle! And best of all, that the benefits of DSG box will soon be able to enjoy not only the owners of the Audi TT or the most expensive Golf. But those who buy a new Audi A3 or even kompaktven VW Touran: transmission with two clutches are going out. On folksvagenovskom factory in Kassel is already running the new assembly line capacity of up to thousands of boxes a day. So the word "direktshaltgetribe" pronounced in Germany, will soon be repeated all over the world.

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