Does the use of sophisticated active traction control at each of 4 wheels and two independent motors improve the ability to accellerate?
It isn't really traction control with the Tesla S85D, as with typical ICE using momentary braking, or differntiating/clutching, it is more like active, independent torque application - each wheel applies as much torque as needed to reach a uniform rotation at each wheel. As soon as one wheel starts to speed up beyond the others, it is dialed back a bit. Might that not do better than normal "street" methods? I though I heard of sub 3 second time reported, not theorized. I have never gotten an explanation I could understand of how C_friction can exceed 1 as I have heard regarding dragsters. Mike On Wed, Feb 10, 2016 at 11:57 AM, Bill Dube via EV <ev@lists.evdl.org> wrote: > The reason that Tesla is limited to a 0 to 60 mph of 3.2 seconds is that > you can only get about 1 g of acceleration on the street. The coefficient > of friction (on regular pavement) is a little less than one. I'm guessing > that the 2 second 0 to 60 mph time is calculated using a simplistic formula > based on 3000 HP and 8000 lbs, and not actually measured. > > Zero to 60 mph in 2 seconds would be 1.36 g's, which would mean that > the coefficient of friction (traction) would have to be 1.36 or greater. > You only get that much traction on the drag strip or on specially prepped > pavement. > > Bill D. > > > On 2/10/2016 1:12 AM, brucedp5 via EV wrote: > >> >> >> http://www.dailymail.co.uk/sciencetech/article-3434446/Forget-Tesla-s-insane-mode-electric-bullet-car-set-reach-370mph.html >> Forget Tesla's insane mode: Electric 'bullet car' set to reach 370mph in >> latest record-breaking attempt >> 5 February 2016 CHEYENNE MACDONALD >> >> [image >> >> http://i.dailymail.co.uk/i/pix/2016/02/06/00/30EC496E00000578-0-image-a-65_1454718638153.jpg >> This vehicle is the most powerful electric car in the world, and can hit >> speeds as high as 372 miles-per-hour. The team is hoping to take it for a >> record-breaking run this summer >> >> >> http://i.dailymail.co.uk/i/pix/2016/02/06/00/30EC497A00000578-0-image-a-64_1454718638009.jpg >> Student engineers at the Ohio State University's Center for Automotive >> Research (CAR) have examined every part of the 12-meter electric car, >> including an expanse of cables that totals nearly 3.5 miles. It is 12 >> meters >> long, and contains 2,000 cells within eight battery packs >> ] >> >> At Utah's Bonneville Salt Flats, a new arrival is gearing up to break >> records on the legendary speedway >> >> VBB-3 is latest model by Venturi Automobiles and Ohio State engineers, who >> set 307mph land record in 2010 >> >> Electric vehicle has 3,000 horsepower, and will try to become world's >> fastest car by hitting speeds of 372 mph >> >> Inside, the 12-meter car has cables that total 3.5 miles, and contains >> 2,000 >> cells inside of eight battery packs >> >> The VBB-3 is the collaborative project of Venturi Automobiles and student >> engineers at Ohio State University, and it boasts nearly 3,000 horsepower. >> >> This vehicle is the most powerful electric car in the world, and can hit >> speeds as high as 372 miles-per-hour. The team is hoping to take it for a >> record-breaking run this summer. >> >> It can go from 0 to 60 in just two seconds. This compares to Tesla's >> 'Insane >> Mode' on its Model S electric cars that goes from 0 to 60 in 3.2 seconds. >> >> At Utah's Bonneville Salt Flats, a new arrival is gearing up to break >> records on the legendary speedway. The VBB-3 is the collaborative project >> of >> Venturi Automobiles and student engineers at Ohio State University, and it >> boasts nearly 3,000 horsepower ... >> >> In 2010, the Venturi team set a world landspeed record with an earlier >> model, the [VBB-2.5], reaching 307 mph. >> [© dailymail.co.uk] >> >> >> >> [dated] >> >> http://electric-vehicle-discussion-list.413529.n4.nabble.com/EVLN-Venturi-Antarctica-5seat-EV-for-clean-samples-r-20km-20kph-tp4675020.html >> EVLN: Venturi Antarctica 5seat EV for clean samples r:20km@20kph >> Apr 20, 2015 >> ... >> >> http://electric-vehicle-discussion-list.413529.n4.nabble.com/EVLN-Venturi-VBB-3-is-world-s-most-powerful-EV-with-3000hp-motor-tp4665585.html >> EVLN: Venturi VBB-3 is world's most powerful EV with 3000hp motor >> Oct 05, 2013 >> >> >> >> >> For EVLN EV-newswire posts use: >> http://evdl.org/evln/ >> >> >> {brucedp.150m.com} >> >> -- >> View this message in context: >> http://electric-vehicle-discussion-list.413529.n4.nabble.com/EVLN-Venturi-OSU-VBB-3-Electric-Racer-targets-372mph-record-0-60mph-2s-tp4680395.html >> Sent from the Electric Vehicle Discussion List mailing list archive at >> Nabble.com. >> _______________________________________________ >> UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub >> http://lists.evdl.org/listinfo.cgi/ev-evdl.org >> Read EVAngel's EV News at http://evdl.org/evln/ >> Please discuss EV drag racing at NEDRA ( >> http://groups.yahoo.com/group/NEDRA) >> >> > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > Read EVAngel's EV News at http://evdl.org/evln/ > Please discuss EV drag racing at NEDRA ( > http://groups.yahoo.com/group/NEDRA) > > -- To invent, you need a good imagination and a pile of junk. Thomas A. Edison <http://www.brainyquote.com/quotes/quotes/t/thomasaed125362.html> A public-opinion poll is no substitute for thought. *Warren Buffet* Michael E. Ross (919) 585-6737 Land (919) 576-0824 <https://www.google.com/voice/b/0?pli=1#phones> Google Phone (919) 600-2892 Cell michael.e.r...@gmail.com <michael.e.r...@gmail.com> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20160210/632bae94/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
