OT- Horsepower Guage ??, Bugatti Veyron Article |
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OT- Horsepower Guage ??, Bugatti Veyron Article |
BGman |
Dec 11 2005, 02:10 PM
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#1
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Greg Group: Members Posts: 87 Joined: 18-January 04 From: Owensboro, KY Member No.: 1,575 Region Association: None |
Reading the latest issue of Motor Trend - they write about Bugatti's Veyron (hell, I don't even know how to pronounce it much less will ever see one)...1001 horsepower ultra-exotic.
It has a HP guage. SO here is my question, how does a guage like this work? I thought HP could only be measured using an external (calibrated) load applied to the engine (AKA dynomometer) as a function of rpm corrected for temp, humidity, etc... So explain how this is probably working? Or is it just a gimmick...a guage pre-programmed to read "HP" based on gear and rpms...so that they can put "1001" on it somewhere? I guess for $1.25 mil - it better be the real deal. |
i love porsche |
Dec 11 2005, 03:29 PM
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#2
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Senior Member Group: Members Posts: 1,547 Joined: 6-May 04 From: Nutley, NJ Member No.: 2,030 Region Association: North East States |
well...if you think about it, they can probably just measure torque and have the computer instantaneously turn it into HP, and then send it to the electronically controlled analogue gauge
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Jacco |
Dec 11 2005, 03:30 PM
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#3
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Designated Dutchman Group: Members Posts: 194 Joined: 23-February 04 From: the Netherlands Member No.: 1,703 Region Association: Europe |
I dunno how they do it, but I just saw Top Gear where Jeremy drove the Veyron from somewhere in Italy back to London in one of their "the car is always faster" races.
And boy is this car a beast! there are just no words to describe this car. I really dig it big time. They also told it costs VW some 6 million euros to build one car, they're taking a huge loss on every single one of them. Oh and what about this, driving at full throttle your 100 liter tank will be empty in 12 minutes... auch Would be interesting to know how they measure BHP output though (IMG:http://www.914world.com/bbs2/html/emoticons/blink.gif) Doesn't that new Rolls also have a gauge similar to this, but then it gives you a "power reserve" reading, pretty much the same thing I guess. good fun that's for sure greets Jacco |
bd1308 |
Dec 11 2005, 03:33 PM
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#4
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
howdy...good to see you again. do you like basketball as much as football...? b |
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Brett W |
Dec 11 2005, 04:23 PM
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#5
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Advanced Member Group: Members Posts: 2,856 Joined: 17-September 03 From: huntsville, al Member No.: 1,169 Region Association: None |
torque can be calculated using mass air flow and VE. Many bosch engine management systems use a similar calculation to help powerful front drive cars keep traction under accelration.
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olav |
Dec 11 2005, 04:28 PM
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#6
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Senior Member Group: Retired Members Posts: 1,107 Joined: 28-December 02 From: Los Gatos, CA. USA Member No.: 34 Region Association: None |
The Veyron is a really nice car in person. I saw one at the 2003 Concorso Italiano. I have some pics of it too. It's beautiful and the interior is stunning. I'd rather have a Gallardo though... (IMG:http://www.914world.com/bbs2/html/emoticons/wub.gif) |
Cap'n Krusty |
Dec 11 2005, 06:07 PM
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#7
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
See Dan Neil's article in today's LA Times. The Cap'n
http://www.latimes.com/news/printedition/l...mostemailedlink |
jasons |
Dec 11 2005, 07:02 PM
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#8
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Jackstand Extraordinaire Group: Members Posts: 2,002 Joined: 19-August 04 From: Scottsdale, AZ Member No.: 2,573 Region Association: None |
C'mon a Gallardo over a Veyron? |
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McMark |
Dec 11 2005, 07:12 PM
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#9
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
Kind of reminds me of the computer industry. I've got a 2.5 Ghz web browser...zoooom. (IMG:http://www.914world.com/bbs2/html/emoticons/rolleyes.gif)
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BGman |
Dec 12 2005, 06:16 PM
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#10
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Greg Group: Members Posts: 87 Joined: 18-January 04 From: Owensboro, KY Member No.: 1,575 Region Association: None |
Interesting- did not know it was that easy. Kinda makes you wonder why they don't have it in the gt, corvette, or other 500 hp cars. It would be a good gee-whiz guage.
Hey Britt- yeah I come to a few games. When is the semester over? |
bryanc |
Dec 12 2005, 06:31 PM
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#11
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Member Group: Members Posts: 321 Joined: 9-August 04 From: San Antonio, Tx Member No.: 2,495 Region Association: Southwest Region |
Actually, real-time HP is easy to do. If you know the weight of the car and the accelleration, you can calculate it. The V-Tech pro does this using an precision accelerometer(sp?). I've even seen rough estimators based on your car's weight and 1/4 mile time.
I'd guess the Bugatti could use the vehicle speed sensor and an approximate passenger weight to calculate the instanteneous HP output. |
bd1308 |
Dec 12 2005, 06:41 PM
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#12
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
this week, lol. I go back to louisville on friday. I need a break from finals real bad....so if you're bored, give me a call. b |
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lapuwali |
Dec 12 2005, 06:54 PM
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#13
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Not another one! Group: Benefactors Posts: 4,526 Joined: 1-March 04 From: San Mateo, CA Member No.: 1,743 |
You can get an excellent approximation by just using fuel flow and mixture, both of which are known by the car's ECU already, since AFR is measured in any closed loop fuel control system, and fuel flow is simply injector ON time multiplied by the known injector flow rate. A bit of extra math, and real time HP actually being expended is readily available. This would be "wheel" HP, and would also automatically account for aerodynamic losses.
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fiid |
Dec 12 2005, 07:05 PM
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#14
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Turbo Megasquirted Subaru Member Group: Members Posts: 2,827 Joined: 7-April 03 From: San Francisco, CA Member No.: 530 Region Association: Northern California |
You could couple this with the drag coefficient, weather and acceleration to give a readout as to the mass of the passengers on board.
(IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif) |
bernbomb914 |
Dec 12 2005, 09:09 PM
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#15
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one of the oldest Farts on this board Group: Benefactors Posts: 1,873 Joined: 29-December 02 From: Temecula, CA Member No.: 36 |
There is a add in autoweek that sell a guage that measures hp, tq, acell,times corning Gs. the ultimate christmas gift . look under gtechpro.com/aw only $199.00
Bernie |
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