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30 May 2012, 03:50 (Ref:3081593) | #3426 | ||
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The discription of the front and rear suspension originally was posted at Joest Racing's site, and since then has probably proliferated onto other Audi websites, though I can't find much on the new R18s at Audi of America's site or Audi's main worldwide site.
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30 May 2012, 17:40 (Ref:3081996) | #3427 | |
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http://www.lemans.org/en/races/24h/u...uit-_7185.html
News for the e-tron, ACO posted the braking zones for Le Mans. 7 zones in total |
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30 May 2012, 17:44 (Ref:3082001) | #3428 | ||||
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Earlier in this thread, we tried to determine the number of KERS activation points at Le Mans and we counted 8 heavy braking zones.
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The braking for the Porsche curves (zone #6) is probably insufficient to fully charge the hybrid system. |
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30 May 2012, 17:59 (Ref:3082011) | #3429 | ||
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FstrthnU beat me with his post.
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This figure can be used as an indication to determine how heavy the braking is and whether Audi can activate the hybrid directly inside the corner.
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30 May 2012, 18:14 (Ref:3082017) | #3430 | ||
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Braking Point #6 is quite ridiculous.
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30 May 2012, 19:02 (Ref:3082044) | #3431 | |
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30 May 2012, 19:44 (Ref:3082078) | #3432 | |
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30 May 2012, 19:56 (Ref:3082085) | #3433 | |
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So if you have to stomp on the brakes outside those zones (say, on a straight) because someone crashes in front of you, can you charge and use the system or not?
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30 May 2012, 21:40 (Ref:3082144) | #3434 | |
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Perhaps if they save some 'juice' from Indianapolis they can combine it with the slightl recharge before the Porsche curves.
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30 May 2012, 22:01 (Ref:3082158) | #3435 | ||
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We already saw at Spa that the difference between the ultra and the e-tron quattro is very small. A bigger flywheel of the e-tron quattro could swing the balance in the direction of the ultra. |
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31 May 2012, 06:22 (Ref:3082246) | #3436 | ||
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Paul Truswell has some interesting statistics about the crew of the #2 Audi: http://trussers.blogspot.com/2012/05/tempting-fate.html
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31 May 2012, 06:32 (Ref:3082250) | #3437 | |||
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31 May 2012, 07:10 (Ref:3082265) | #3438 | ||
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Hvil i Fred Allan. (Rest in Peace Allan) |
31 May 2012, 09:41 (Ref:3082353) | #3439 | ||
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31 May 2012, 11:56 (Ref:3082517) | #3440 | |
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The hybrid systems are not designed to have "leftover energy". They recover and store 500 kJ during braking and release it all immediately during acceleration.
After zone #5 the car will accelerate from 75 km/h (Arnage) to 300 km/h. During that acceleration the 500 kJ will be released fully. In order to have leftover energy, the energy storage device (flywheel accumulator, battery, supercapacitors) would have to have a bigger capacity. And this would make the hybrid system heavier, which is bad for handling, etc. My point was that it is not worth the effort to design a hybrid system with leftover energy. The car could be carrying the additional, badly positioned, weight of bigger energy storage device just for 1 out of 7 braking zones. At Spa the difference in performance between the e-tron quattro and the ultra was already very small. Audi's simulations suggest that the hybrid car will have a clear advantage at Le Mans. A heavier hybrid system with overdimensioned flywheel accumulator could even swing the advantage back in the direction of the ultra. |
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31 May 2012, 13:28 (Ref:3082593) | #3441 | |
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A nice PR article describing the technological innovation (e.g., the VTG turbo) in the Audi V6 TDI engine: https://www.audi-mediaservices.com/p...tlichkeit.html
Two cool pictures from the engine: On the first picture (on the test bench) the gearbox casing is from aluminium, so that might be a picture from last year. Last edited by gwyllion; 31 May 2012 at 13:47. |
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31 May 2012, 17:46 (Ref:3082751) | #3442 | |||
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Also pretty interesting to see the 120 degree V angle on that v6. It's not something new but it's also not something you see very often... |
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31 May 2012, 21:49 (Ref:3082921) | #3443 | ||
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Audi's racing turbochargers have been always developed by Garrett/Honeywell for their Le Mans cars and Garrett is a leading supplier and developer of VTG turbos for diesel engines.
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31 May 2012, 22:20 (Ref:3082931) | #3444 | |
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BTW a year ago I already noticed that the turbo has two entries: http://tentenths.com/forum/showthrea...99#post2900299
This is a picture of the compressor side of the R18 turbocharger. Also note the box on top which control the turning of the VTG vanes. For the fans, higher resolution versions of the first two pictures: Last edited by gwyllion; 31 May 2012 at 22:28. |
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1 Jun 2012, 07:53 (Ref:3083071) | #3445 | ||
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Isn't Audi afraid somebody could learn from these pictures?
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1 Jun 2012, 08:02 (Ref:3083073) | #3446 | ||
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No. Audi is the only diesel manufacture.
So by the time someone uses these images to create their own diesel engine, the techs in this engine is almost obsolete. Besides what can be gained from this type of image is limited, compared to what we already know. |
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Hvil i Fred Allan. (Rest in Peace Allan) |
1 Jun 2012, 08:04 (Ref:3083078) | #3447 | ||
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Ah ok. Thanks for information
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1 Jun 2012, 09:44 (Ref:3083132) | #3448 | ||
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1 Jun 2012, 11:01 (Ref:3083167) | #3449 | ||
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Bad luck for poor Timo, but at least Audi gets a replacement with Le Mans-winning history in the person of Gené. It's a very strong line-up across the four cars.
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Interviewer: "Will the McLaren F1 be your answer to the Ferrari F40?" Gordon Murray: "Hmm... I don't think we have anyone at McLaren who can weld that badly..." |
1 Jun 2012, 13:47 (Ref:3083264) | #3450 | |||
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