Audi R10 wins little Le Mans

Despite regulations allowing its competitors to race with 143 lbs. less weight, Audi managed to claim the win this weekend at the Petit Le Mans endurance race at Road Atlanta. Other LM P1 cars from Zytek, Creation and Porsche were actually faster than the Audis thanks to the rules that lightened their load, but the R10's bulletproof durability and lower fuel consumption, combined with error-free driving from Alan McNish and Dindo Capello, carried one of the two Audi cars across the finish line first. The second R10, driven by the Le Mans winning team of Frank Biela, Emanuele Pirro and Marco Werner, was poised to finish alongside or ahead of its counterpart, but contact with a slower GT car pushed the team back to seventh overall and fourth in LM P1.

With the win, Audi clinches the Manufacturers' Championship in LM P1, having already won both the Drivers' and Teams' Championship. It's also the seventh straight Petit Le Mans victory for Audi and the tenth straight win at Road Atlanta. That is what they call merciless domination, folks. Watching the diesel-powered R10 mow down its gas-powered competitors all season makes us a little more than excited for the start of the next 24 Hours of Le Mans where Peugeot is preparing to fight fire with fire by fielding its own diesel-powered Le Mans racer, the 908.

[Source: Audi]

najboljšii ?

Autoblog je napisal/-a:Audi V12 TDI is "Race Engine of the Year 2006"

Posted Nov 16th 2006 3:25PM by Frank Filipponio
After completing a remarkable rookie season with tons of new hardware for the trophy case back in Ingolstadt, the Audi Sport team better make room for at least two more items. British specialist magazine Race Engine Technology just awarded the Audi R10's 650-hp V12 TDI engine its "Race Engine of the Year 2006" and "Alternative Race Engine of the Year" awards.

Hard to argue with that choice as the TDI simply dominated the competition from the drop of the flag at the 12 Hours of Sebring back in March. And they didn't let up, finishing unbeaten (though not perfect) for the season. 8 for 8 is pretty impressive for a revolutionary diesel racing powerplant.

Kudos to Audi and to Ulrich Baretzky, Audi Sport's Head of Engine Technology who accepted the "Race Engine of the Year" trophies for Audi and who picked up one of his own for the "Design Engineer of the Year 2006" at the awards ceremony during the recent Professional MotorSport World Expo in Cologne.

[Source: Audi]

Audi bo naslednje leto dirkal na biodizel
Ne sicer na olje od pomfrija, ampak na sintetični derivat olja iz rastlin, ki ga razvijajo skupaj s Shellom.

Autoblog je napisal/-a:Audi to run on bio-diesel at Le Mans


Posted Dec 17th 2006 3:32PM by Noah Joseph
Automotive enthusiasts (racing fans in particular) and environmental lobbyists don't always see eye-to-eye. Make that seldom, if ever. But greener motorsports is something over which we can definitely sit down with our compatriots at sister site AutoblogGreen. In fact, we'd go as far to say that it's the one thing that could stand to keep automobile racing relevant in the modern era, and we'll applaud any series, team or supplier that moves the cause forward.

Audi, then, is a particular favorite, for their milestone achievement of fielding the diesel-powered R10 in endurance racing series and events – and winning, sweeping the field, in fact, despite the self-imposed oil-burning handicap. But the boys at Ingolstadt aren't about the rest on their proverbial laurels, they're pushing forward, together with their sponsors over at Shell. They've announced that at next year's 24 Hours of Le Mans, they'll not only be racing on diesel, they'll be racing on biodiesel! Don't expect to see Audi engineers rummaging through the trash bins behind the local greasy-spoon, though. Audi will be using a synthetic derivative of plant-based oil (though we have no idea how something synthetic can be derived from something natural) produced by a subsidiary of team sponsor Shell.

Now that the announcement has been made, it seems such an obvious move, but then, all great developments seem so simple once they're done. Our hats go off to Audi and Shell for this, and we'll be looking forward to Le Mans next year.

German Car Blog je napisal/-a:Audi's motorsports techies, titans of the oil-burning racecar scene, say they want to run the R10 racer on biofuel at next year's 24 Hours of Le Mans. It's part of a companywide move, says Audi Sport's head of engine technology Ulrich "Torquenstein" Baretzky, to develop biofuel combustion technology for VW/Audi. But they won't be using leftover horse lard from the local bistros; they're planning to use Biomass to Liquid (BTL) fuel, or a synthetic derivative of plant-based oil, the producers of which are owned by team sponsor Shell.

esem je napisal/-a:

Autoblog je napisal/-a:Audi to run on bio-diesel at Le Mans


Posted Dec 17th 2006 3:32PM by Noah Joseph
...Audi, then, is a particular favorite, for their milestone achievement of fielding the diesel-powered R10 in endurance racing series and events – and winning, sweeping the field, in fact, despite the self-imposed oil-burning handicap...

Globoko spoštujem letošnje uspehe Audija R-10 (tako v prvenstvu ALMS kot tudi na 24 ur Le Mansa, kjer je resnično pometel s konkurenco ) ter sam pogum Audija, da je sploh sprejel izziv razvoja in dirkanja z dizelskim motorjem!

Vendar pa je obenem potrebno tudi povedati, da so pravila ACO [Automobile Club de l’Ouest - organizacije, ki organizira 24-urno dirko v Le Mansu] letos zelo favorizirala uporabo dizelskega motorja (navkljub večji kalorični vrednosti dizelskega goriva ter s tem povezani manjši porabi je bila za dirkalnike z dizelskim motorjem dovoljena 9-litrov večja posoda za gorivo, dirkalniki z dizelskim motorjem so lahko imeli tudi širše zadnje pnevmatike, večje restriktorje vstopnega zraka,...). In vse to je na koncu v Le Mansu prineslo kar za 3,2 sekunde / krog prednosti napram najboljšim bencinsko gnanim dirkalnikom!

In kot kaže si lahko tudi prihodnje leto obetamo zmago dizelsko gnanega dirkalnika v Le Mansu (na kar je z javnim pismom opozoril tudi Henri Pescarolo ), saj ACO navkljub letošnji dominaciji Audija ni za dosti izenačila različnih vrst motorjev (dizelski / bencinski / hibridni). Vse kar so spremenili za leto 2007 je, da so posodo za gorivo dizelskim dirkalnikom zmanjšali z 90-litrov na 81-litrov (ter tako kalorično izenačili obe vrsti goriva).

Je pa dobro tudi opozoriti, da je bilo že letošnje 'običajno' dizelsko gorivo, ki ga je uporabljal Audi, dizelskemu gorivu, ki ga normalni uporabnik lahko dobi na bencinski črpalki podobno samo po imenu! Pa Bio-dizel gor ali dol...

Ker si dobro informiran, prosim povej še, kako je bilo z močjo in s težo (+ dodatno težo) Audija in ostalih.
Je pa jasno, da ta "bio" pomeni samo promocijo, nafta za dirkalnike je pa daleč od tega in kvečjemu dražja/boljša/bolj škodljiva(?) od navadne. Sama promocija biodizla kot taka pa za navadnega prebivalca niti ni tako napak, kljub "dvoličnosti".
lp

Sicer z nekaj zamude, a prej zaradi pomankanja časa enostavno ni šlo...

Audi je vsekakor pokazal obilo poguma ter vizionarstva, ko se je odločil razviti dirkalnik z dizelskim motorjem. In sedaj, ko je Audi nakazal pot, je dizelski motor kar naenkrat postal Holy Grail vzdržljivostnega dirkanja...vendar pa je razvoj takega dirkalnika obenem tudi izjemen tehnični zalogaj (samo za razvoj ter testiranje motorja so pri Audiju porabili kar 3500 ur! )!

Če primerjamo dizelski R-10 napram (prav tako izjemno uspešnemu) Audijevemu bencinskemu predhodniku R-8 se lepo vidijo razlike:

R-10 [5,5-literski 90° V12 bi-turbo motor]
Moč: ~ 700 KM
Navor: 1100 Nm (bojda so zaradi trpežnosti menjalnika morali navor celo nekoliko omejiti )
Teža: ~ 935 kg
Dolžina dirkalnika: 4650 mm [ocenjena]
Medosna razdalja: 2980 mm [ocenjena]

R-8 [3,6-literski 90° V8 bi-turbo motor]
Moč: ~ 550 - 600 KM
Navor: 700 Nm
Teža: ~ 900 kg
Dolžina dirkalnika: 4640 mm
Medosna razdalja: 2740 mm

Dizelski motor ima ob prednostih (velika moč ter ogromen navor ob hkrati manjši porabi goriva) seveda tudi svoje slabosti...največji problem dirkalnika z dizelskim motorjem je sigurno velika koncentracija mase v zadnjem delu dirkalnika (V12 TDI motor iz R-10 naj bi tehtal nekaj čez 200 kg ), ter tudi sama dolžine dizelskega V12, zaradi česar so morali pri Audiju tudi občutno povečati medosno razdaljo napram bencinskemu predhodniku R-8! Velik problem dizelskega motorja je tudi večja termična obremenitev ter v povezavi stem do 25 % večji hladilniki (kar spet negativno vpliva na aerodinamiko...). Prav tako so problematične tudi zadnje pnevmatike, ki zaradi ogromnega navora optimalno delujejo v ožjem območju ter se hitreje obrabljajo...

Veliko tehničnih problemov, ki pa so jih pri Audiju očitno uspešno rešili! Sam se že zelo veselim prihodnjega leta ter Boja Titanov za dizelski primat v Le Mansu med Peugeotom (obljubljajo motor z kar 1200+ Nm navora ) ter Audijem!

In še zanimiva primerjava časov / krog v Le Mansu med dizelskim R-10 ter ostalimi bencinskimi dirkalniki:

The first split – pit straight – is the most significant data because while the Audi is 0.544 quicker on the whole sector, when considering the 398 meters of pure acceleration it is 0.1395 quicker on the 130 to 250 kph acceleration than the quickest gasoline. Applied to the 9 600 meters of straight line acceleration the track counts, that would mean 3.36 quicker on a lap. This figure is rather close to reality. A theoretical calculation enables to evaluate that with the same tires this variation in acceleration is generated by a difference in power of roughly 57 hp. This is close again to the claimed figures.

Let us see the second split - Hunaudières straight. The Audi is 1.19 quicker. As the maximum speeds are similar - 325 to 326 kph, the time difference comes from the straight line acceleration until maximum speed is stabilized. Note the cars are roughly equally quick in the two chicanes.

The Audi is 1.34 quicker in the third sector which confirms the two previous analyses. But in the Virages Porsche, it is rather the torque than the power that brings an advantage. On the other hand the difference between the best race lap times of the Audi and the best petrol-engined car is really significant: a huge 4.4 gap (3:31.211 against 3:35.656), and yet this is just the beginning of the diesel engine development!

esem je napisal/-a:Je pa jasno, da ta "bio" pomeni samo promocijo, nafta za dirkalnike je pa daleč od tega in kvečjemu dražja/boljša/bolj škodljiva(?) od navadne. Sama promocija biodizla kot taka pa za navadnega prebivalca niti ni tako napak, kljub "dvoličnosti".
lp

Jup, se popolnoma strinjam!

Tudi drugi bi lahko razvili dizelski motor in bi imeli enake pogoje za dirkanje,je pač znano Audijevo geslo: Prednost je v tehniki