SAE approves new fast-charging standard for EVs, plug-ins

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Thread: SAE approves new fast-charging standard for EVs, plug-ins

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    SAE approves new fast-charging standard for EVs, plug-ins

    SAE approves new fast-charging standard for EVs, plug-ins
    Automotive News
    October 15, 2012


    SAE International said it has approved a new technical standard that will dramatically reduce charging times for plug-in hybrid electric vehicles and electric vehicles.

    After several years of study, the global engineering group said the new charging standard, developed with the cooperation of more than 190 automakers, utilities and equipment builders, will allow charging times to be reduced from as long as eight hours to as short as 20 minutes.

    "This new standard reflects the many hours that top industry experts from around the world worked to achieve the best charging solution -- a solution that helps vehicle electrification technology move forward," said Gery Kissel, an engineering specialist with General Motors' Global Battery Systems unit and head of SAE's charging task force. "We now can offer users of this technology various charging options in one combined design."

    The original charging standard defined AC Level 1 and AC Level 2 charge levels and specified a conductive charge coupler and electrical interfaces for AC Level 1 and AC Level 2 charging. SAE says the revision incorporates DC charging where DC Level 1 and DC Level 2 charge levels, charge coupler and electrical interfaces are defined.

    Next year, GM will introduce the Spark EV that will feature the fast-charging system.

    Full article at link.

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    Re: SAE approves new fast-charging standard for EVs, plug-ins

    But Tesla has the supercharger!

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    Re: SAE approves new fast-charging standard for EVs, plug-ins

    So why is the Dept of Energy spending $230 million installing non-standard quick chargers along Interstate 5 on the west coast? Only the Nissan Leaf and the Mitsubshi ImEV can use these chargers. Does anyone know if the old quick chargers are capable of being upgraded to conform to the SAE standard?

    http://westcoastgreenhighway.com/electrichighways.htm

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    Re: SAE approves new fast-charging standard for EVs, plug-ins

    Quote Originally Posted by lkimura View Post
    So why is the Dept of Energy spending $230 million installing non-standard quick chargers along Interstate 5 on the west coast? Only the Nissan Leaf and the Mitsubshi ImEV can use these chargers. Does anyone know if the old quick chargers are capable of being upgraded to conform to the SAE standard?

    http://westcoastgreenhighway.com/electrichighways.htm

    You are incorrect. The Volt and Focus can be charged as well because they have Level 2 chargers equipped at each station.

    From the website you linked:
    Each location also includes Level 2 equipment to re-charge other plug in electric vehicles such as the Ford Focus and Chevrolet Volt.
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    Re: SAE approves new fast-charging standard for EVs, plug-ins

    I love this since we are entering an era where electricity is generated by many benign means vs. fossil fuels and fissile nuclear.
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    Re: SAE approves new fast-charging standard for EVs, plug-ins

    Can current vehicles, such as the Volt, use this? Or can a Volt be retrofitted? Does there need to be a special battery type?

    If not, this announcement may kill Volt sales. Who will want a Volt that needs to charge for many hours when they can wait a year to get a quick charge vehicle? Or people may not even want a Volt, sound like this technology makes pure electric viable (once the infrastructure is in place, which it isn't right now).

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    Re: SAE approves new fast-charging standard for EVs, plug-ins

    Quote Originally Posted by Eulentier View Post
    You are incorrect. The Volt and Focus can be charged as well because they have Level 2 chargers equipped at each station.

    From the website you linked:
    The L2 charger interface at the sites being installed by the DOE on I5 is SAE 1772 compliant. However this thread is about the SAE standard for L3 charging, i,e, quick charging. My understanding is the chargers being installed by the DOE allows Nissan Leafs to quick charge, but the Leaf uses a different charging standard which is used only by a few Japanese EVs. The question is, can the chargers being installed by the DOE support the new SAE standard? If not, this seems like a waste of taxpayer money.

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    Re: SAE approves new fast-charging standard for EVs, plug-ins

    Quote Originally Posted by lkimura View Post
    The L2 charger interface at the sites being installed by the DOE on I5 is SAE 1772 compliant. However this thread is about the SAE standard for L3 charging, i,e, quick charging. My understanding is the chargers being installed by the DOE allows Nissan Leafs to quick charge, but the Leaf uses a different charging standard which is used only by a few Japanese EVs. The question is, can the chargers being installed by the DOE support the new SAE standard? If not, this seems like a waste of taxpayer money.
    I most have missed reading this being taxpayer funded, I read the artical and never saw that being said.

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    Re: SAE approves new fast-charging standard for EVs, plug-ins

    Quote Originally Posted by BlackGTP View Post
    Can current vehicles, such as the Volt, use this? Or can a Volt be retrofitted? Does there need to be a special battery type?

    If not, this announcement may kill Volt sales. Who will want a Volt that needs to charge for many hours when they can wait a year to get a quick charge vehicle? Or people may not even want a Volt, sound like this technology makes pure electric viable (once the infrastructure is in place, which it isn't right now).
    To my knowledge no. This is simply a charging standard. This is a good start for vehicle electrification. The next challenge is to find a battery technology that can actually handle a full 100KW DC level 2 charger. The whole purpose of the Volt is to be EV when you want it but have gas available when you need it as charging infrastructure is very primitive right now. I'm guessing It's still going to take close to a decade to see a decent charging infrastructure and a battery that can handle it. The Spark EV will have a DC quick charge capability but it will not be the full 100KW DC level 2 standard (likely ~20KW to 40KW is my guess [40KW is the max DC level 1 standard]).

    http://insideevs.com/welcome-to-2009...r-plug-in-evs/

    Edit:

    As a note the SAE standard does not refer to this as Level 3 charging. SAE calles it DC level 1 (up to 40KW) and DC level 2 (up to 100KW) see article linked above and even better the picture below.

    http://insideevs.com/wp-content/uplo.../SAE-Combo.jpg
    Last edited by MechEng; 10-16-2012 at 05:22 PM.
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    Re: SAE approves new fast-charging standard for EVs, plug-ins

    Quote Originally Posted by BlackGTP View Post
    Can current vehicles, such as the Volt, use this? Or can a Volt be retrofitted? Does there need to be a special battery type?

    If not, this announcement may kill Volt sales. Who will want a Volt that needs to charge for many hours when they can wait a year to get a quick charge vehicle? Or people may not even want a Volt, sound like this technology makes pure electric viable (once the infrastructure is in place, which it isn't right now).
    The whole point of the Volt is you don't have to worry about range or how long it's going to take to recharge. Quick charging a volt means getting another 40 miles in a few minutes, but why stop every 40 miles when you can go as far as you want on gas. The Volt can be driven on electricity for the vast majority of people's driving needs, but when these folks need to drive far they don't have to change cars, the Volt's range extender works great.

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