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Thread: Smart EV (or ED)

  1. #1
    Senior Member malcolm's Avatar
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    Smart EV (or ED)

    The link dates back to the summer.

    http://www.autoindustry.co.uk/news/18-07-06_9

    The brushless DC motor is calibrated to produce 120Nm (88.5 ft lbs) peak torque and 30kW (40bhp) peak power in a package that weighs 70kg including the motor, gearbox, inverter and control electronics.

    Power is provided by a Zebra liquid sodium nickel chloride battery, mounted under the floor near the centre of the vehicle. Running at 180-310V it has a specific power density of 194W/kg, giving a range of up to 72 miles in a standard EUDC test.

    Zebras have similar energy densities to Li-ion, but lack the power density (and suffer badly from self-discharge according to Tesla's Martin Eberhard).* Battery pack must be fairly small given the mounting location and the range quoted.

    Would be fun to get hold of one of these and upgrade the drive systems while we're all waiting for Tesla to export to the UK.


  2. #2
    Senior Member malcolm's Avatar
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    Top Gear on the Smart ED

    Smart ForTwo ED Car Review - March 26, 2008 - Car Reviews - Top Gear

    Why ED? What was wrong with EV? Or just E, as in Smart-e?

    Anyway, the gist is there's insufficient energy density in the given volume available for the batteries. But then, Mercedes are using Zebras
    Last edited by malcolm; 2008-04-04 at 05:24 AM.

  3. #3
    Quote Originally Posted by malcolm View Post
    Smart ForTwo ED Car Review - March 26, 2008 - Car Reviews - Top Gear

    Why ED? What was wrong with EV? Or just E, as in Smart-e?

    Anyway, the gist is there's insufficient energy density in the given volume available for the batteries. But then, Mercedes are using Zebras
    At the risk of sounding like a conspiracy theorist, I doubt Smart is willing to jump too quickly into the EV market, especially in the US because the gassers are selling so well. Why create a viable EV using li-ions if the thing may actually sell to the detriment of the gassers? I would NEVER consider the smart-for-two, but may consider the EV version.
    Dave

    '05 Passat powered by Biodiesel
    '54 Corvette

  4. #4
    Head Moderator / Administrator doug's Avatar
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    Quote Originally Posted by malcolm View Post
    Why ED? What was wrong with EV? Or just E, as in Smart-e?
    ED

    __________

  5. #5
    Senior Member malcolm's Avatar
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    ROFL!

    Thanks doug. Brings a whole new meaning to the phrase "limping home".

  6. #6
    Senior Member malcolm's Avatar
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    Smart on Li-ion?

    The Smart's ED vs ICE performance isn't good. I believe that much of the blame for this can be laid at the door of the Zebra batteries currently being used in the ED:

    http://www.teslamotorsclub.com/video...smart-ice.html

    Didn't connect the dots until now...

    Smart could start testing lithium ion ForTwo in 2009, possibly in LA - AutoblogGreen

  7. #7
    Senior Member malcolm's Avatar
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    Li-ion Smart in Guernsey


  8. #8
    Senior Member malcolm's Avatar
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    Update on Smart EV

    Real world testing of the smart fortwo ‘ed’ in London|BenzInsider.com - The Official Mercedes-Benz Fan Blog

    Well I suppose it makes a change from the usual groundbreaking-EV-due-out-in-2011 press release, but I'm not clear on what they are hoping to learn from all this. Especially as they may be about to shift the battery systems to a certain West Coast supplier

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    Berlin Hearts Electric Smarts

    Berlin Hearts Electric Smarts


    ---quote---
    By Justin Berkowitz
    September 9, 2008 - 0 views
    Londoners know (because a fleet of almost 100 is already running): the electric Smart fortwo is an big improvement on the original. It’s economical and smooth, without the wheezy engine and the miserable, jerky transmission of the gas-powered (or God forbid, Diesel) version. Greeny Berliners think: electric cars would be the zero-emission way to go, if you could just charge them somewhere (who has a garage in the city?) Bringing both factors together and hoping that they gel, the German government has started a project with the generic-sounding name “e-mobility Berlin”. It will be the world’s biggest e-car pilot project, involving Daimler and RWE, a utility, which will install 500 public charging stations. The charging stations will have token solar cells, but are basically about coal-derived electricity (take that, global-warming activists!) Daimler’s main motivation is to field-test its e-Smarts, scheduled for massive roll-out in the magic year (guess!) On TV, I saw Angela Merkel, Germany’s often dour, physicist-by-training head of government talk about the project with bright eyes: “It only takes two hours to re-charge the batteries? Just the time you need to go shopping!” As they say, some ways of thinking die hard.

    ---unquote---

    Brabus Smart ForTwo Defeats 39 Supercars, Wins Cannonball Europe
    Last edited by Finkenbusch; 2008-09-09 at 04:13 PM.

  10. #10

    Update on Smart EV

    It's coming, late 2009 or 2010. I'm thrilled. One more choice of EVs.



    Paris 2008: smart shows off its second-gen ED - AutoblogGreen
    Dave

    '05 Passat powered by Biodiesel
    '54 Corvette

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