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Transportation Power Hardware

Tesla Model S: 0-60 In 4.5 Seconds 426

Posted by timothy
from the mind-the-headwinds dept.
thecarchik writes "We already know a lot about the all-electric 2012 Tesla Model S sedan — but at a press event ahead of tonight's exclusive VIP event at the former Toyota NUMMI facility in Fremont, California, Tesla CEO Elon Musk announced Tesla was making a faster Model S for those with a sporty side. Cutting the brisk 0-60 time of the standard Model S from 5.6 second to under 4.5 seconds, the sportier version features the same 85 kilowatt-hour, 300 miles-per-charge battery pack found in the 2012 Model S Signature series. 'That's quicker than a [Porsche] 911 [Carrera],' joked Musk. 'Not bad for an electric luxury sedan.' But if you thought 300 miles was the maximum range a Tesla Model S could do, you'd be wrong."
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Tesla Model S: 0-60 In 4.5 Seconds

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  • How about a Model T? (Score:5, Interesting)

    by tp1024 (2409684) on Sunday October 02, 2011 @05:49PM (#37585436)
    The Ford T cost $240 in 1925. That's $3000 in today's money. If you want a revolution, what you want is low prices.
  • by Bobakitoo (1814374) on Sunday October 02, 2011 @06:08PM (#37585568)
    The Ford T has no air conditioner, seat belt, airbags, computer assisted direction and engine or sophisticated electronic gadget. The Ford T was essentially a golf cart, and 3000$ is about right for a modern electric gold cart. If you want a revolution, peoples will have to change what they are expecting from a automobile. We can't no longer afford a 'living room' on wheel. The automobile need to return to its minimalist roots and focus on getting us from point A to point B with the less power possible.
  • by Osgeld (1900440) on Sunday October 02, 2011 @06:34PM (#37585716)

    I was looking at a 10,000$ Kia, sure that didnt have AC, power anything or even an AM radio, that car had the highest safety rating of that year, 40MPG. I ended up getting a 15 grand model and that even had a MP3 player.

    Meanwhile at the GM dealership I could get a lower quality car, with less features, less gas mileage, less power and a much lower safety rating for damn near 10 grand more than the IMPORT. So its not impossible to make a low cost car, sure not 3 grand like the OP suggests but the American companies are not even trying.

    Its been over a decade since I bought a domestic car, and now that almost all the imports are being made in the USA, I get to have a quality product for a reasonable price without hearing the "dey took our jobs" horse shit.

  • Re:320 miles (Score:5, Interesting)

    by Rei (128717) on Sunday October 02, 2011 @06:43PM (#37585782) Homepage

    Actually, in 32 MPH stop-and-go traffic, you'd probably get more like 400+ miles range. Li-ion EVs excel in those conditions. The optimum steady-state speed for the Tesla Roadster is 15-20 mph. Stop and start causes loss of efficiency, but not nearly as much as highway-speed travel. The Roadster's nominal range would be met at approximately a steady-state of 55mph, if I remember the numbers correctly. Since most people drive faster than that on the highway, most people reported lower achievable ranges.

    Good to see they're offering an aero wheel mod. Go Tesla! :)

  • by Rei (128717) on Sunday October 02, 2011 @07:15PM (#37585958) Homepage

    Well, the Volt's pack is going to be *warrantied* for ten years, soo.... Plus, A) EV battery packs can often have parts of them replaced individually, and B) evne a reduced-capacity pack still has value (say, on grid load balancing)

    Battery life is always going to be limited by *design*. You can have any sort of lifespan you want out of a battery, from nanoseconds to tens of thousands of years. It's all about tradeoffs. The better the chemistry, the better the temperature regulation. the gentler the charge/discharge curve, the better the charge management, and the lower the depth of discharge range, the longer the lifespan, by orders of magnitude. As for Tesla's design approach:

      * Chemistry: nothing special -- same as in laptops
      * Temperature regulation: top notch -- a far cry from an unregulated battery pack sitting right next to your CPU.
      * Charge management: very good -- detailed computer monitoring and balancing of hundreds of individual subcomponents.
      * Charge curve: The most common case (~3.5 hours per full charge) is a little gentler than an average laptop charge. The mild case (a 120V socket) is exceedingly gentle. The rare case (fast charging on a long trip, ~1 hour) is worse than for most laptops.
      * Discharge curve: Unless the vehicle is being put through track duty, gentler than a laptop.
      * Depth of discharge: It's hard to generalize between laptops. Telsa does not charge to 100%, nor allow down to 0%, and the most common discharge case usually only uses a few tens of percents charge before recharging. So in general, well gentler than for a laptop.

    Different vehicles vary. The Leaf uses a better chemistry, but poorer temperature regulation. The Volt uses both a better chemistry and good temperature regulation.

  • Automation (Score:5, Interesting)

    by oberhaus (1004585) on Sunday October 02, 2011 @08:21PM (#37586274) Homepage
    Another big part of the Tesla story is automation. Check out today's post by Robert Scoble [google.com]:

    This is the future of American manufacturing. They can make anything. It's almost 100% vertically integrated, which means everything from plastics and metals to batteries, electronics, motors and component assembly is done here, with flexible multi-purpose robots. Every car can be different, with no retooling, because the robots can do anything. It's just software.

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