Slashdot Mirror


Japan To Standardize Electric Vehicle Chargers

JoshuaInNippon writes "Four major Japanese car manufacturers and one power company (Mitsubishi, Nissan, Subaru, Toyota, and Tokyo Electric) have teamed up with over 150 business and government entities in Japan to form a group to promote standardization in electric vehicle chargers and charging stations. The group hopes to leverage current Japanese electric vehicle technology and spread standardization throughout the country, as well as aim towards worldwide acceptance of their standardized charger model. In a very Japanese manner, the group has decided to call themselves 'CHAdeMO,' a play on the English words 'charge' and 'move,' as well as a Japanese pun that encourages tea-drinking while waiting the 15+ minutes it will take to charge one's vehicle battery."

16 of 240 comments (clear)

  1. Quick by ArsonSmith · · Score: 5, Funny

    We Americans need to come up with our own, incompatible, standard for charging vehicles.

    --
    Paying taxes to buy civilization is like paying a hooker to buy love.
    1. Re:Quick by Evelas · · Score: 5, Funny

      and puns, we can't let the Japanese be beating us on puns.

    2. Re:Quick by sakdoctor · · Score: 4, Funny

      USB

    3. Re:Quick by natehoy · · Score: 4, Funny

      So I can charge my car from my laptop, then? Brilliant!

      --
      "This post contains words, known to the State of California to cause thought. Wash brain thoroughly after reading."
    4. Re:Quick by fuzzyfuzzyfungus · · Score: 4, Funny

      You sickening, worthless, un-American, communist. America should let the free market come up with at least 3 competing, mutually incompatible charging standards. Each with its own DRM system to prevent nimbler third parties from offering cheaper alternatives! Ideally, chargers shouldn't even be interoperable between vehicle lines produced by the same company.

    5. Re:Quick by CheeseTroll · · Score: 5, Funny

      And then charge your laptop from the car's 12v outlet!

      --
      A post a day keeps productivity at bay.
    6. Re:Quick by natehoy · · Score: 5, Funny

      Not at all. We hook up a generator and use the motion of Galileo and Liebniz spinning in their graves for power.

      --
      "This post contains words, known to the State of California to cause thought. Wash brain thoroughly after reading."
    7. Re:Quick by commodore64_love · · Score: 4, Insightful

      >>>create large, comfortable urban lodging for families close to work

      Live in the concrete hell that is a modern American city? No. I'd probably have an attack of claustrophobia. Also your concept of "large" is incompatible with having to squeeze those ~15 million ex-suburbanites into the small area a city occupies. You'd be left with homes about the size of one dorm per family (like in Asimov's Caves of Steel).

      Now maybe if you moved the workplaces to the suburbs, rather than concentrating them all inside the city, you could find a solution. I've never understood why all companies want to locate themselves in Baltimore when there's plenty of room in nearby Frederick or Bel Air or Annapolis.

      I'd be willing to live in any of those towns.

      --
      "I disapprove of what you say, but I will defend to the death your right to say it." - historian Evelyn Beatrice Hall
    8. Re:Quick by jimbolauski · · Score: 4, Funny

      The communist way would be much better people waiting in long lines to use the only recharge station because nobody is motivated to innovate except for the threat of the trips to the gulag, I mean reeducation camp, wait no work camp.

      --
      Knowledge = Power
      P= W/t
      t=Money
      Money = Work/Knowledge so the less you know the more you make
    9. Re:Quick by Enigma2175 · · Score: 4, Interesting

      Power is usually limited so that the battery does not blowup. Batteries like to be slow-charged at 1/10th C over several hours. Faster charging will work, but it typically damages the internal components and causes premature death, while the "15 minute" charging suggested by the article would make most batteries explode.

      Which makes me wonder - How on earth did the Japanese develop 15 minute charging? That's a LOT of energy to dump into a car.

      Most of the fast vehicle chargers I have seen use a coolant (usually water) that circulates through the battery pack during charging. Batteries can be harmed when charged quickly because charging is not 100% efficient due to the internal resistance of the batteries. The waste energy is heat that is usually just radiated away in a normal slow charge but can build up enough in a fast charge to damage your batteries. Cooling the pack using an external mechanism is perfect for this application. For normal charging you can just plug in the electrical connection, or for quick charging you can have 2 extra coolant lines on the connector to pump away excess heat.

      --

      Enigma

  2. Not international? by Animats · · Score: 4, Insightful

    It should be an international standard. All standard AC power systems offer a voltage around 220V, and the 50Hz/60Hz difference is routinely dealt with today.

  3. Re:how about cellphones first? by MrEricSir · · Score: 4, Informative
    --
    There's no -1 for "I don't get it."
  4. Connector style? by Yvan256 · · Score: 4, Funny

    So, what does the connector look like? I bet it's a tentacle of some sort.

  5. Re:how about cellphones first? by natehoy · · Score: 4, Interesting

    I went through this for a long time. I'm done.

    Many newer phones use a USB-mini or USB-micro port for charging. Not all of them, of course, but you could shop for phones that have it, and vote with your dollars.

    My Blackberry uses a USB-mini, which means I can charge it off my laptop, and car chargers are just a few bucks. USB charging capability was also one of the major criteria when we shopped for a new phone for my wife (one of the disqualifying points for an iPhone). Her phone also uses USB-mini. My bluetooth headset uses USB-micro, so I keep an adapter near the charging shelf so I can charge that when I need to off the same adapter. The only oddball device is my wife's iPod Touch.

    As a bonus, the USB-mini port allows us to:
      - Connect the phone to computers at the same time the phone is charging, on the same cable. This is both for Internet access (tethering) and for copying music, pictures, etc to and from the phones (USB mass media support on the SD chips we put into the phones).
      - Plug the phone into her car stereo (which has a standard USB port) and, since both phones support mass media (like a USB thumb drive), listen to music from our phones. Also while the phone is charging.

    Overall, I'd say next time you shop for a phone, make sure it has a standard connector that can be used for simultaneous power and data. USB's about the only game in that particular town right now, though if you want to go all-Apple the "Apple Connector" might be your chosen standard.

    --
    "This post contains words, known to the State of California to cause thought. Wash brain thoroughly after reading."
  6. Re:Wrong Solution! by wowbagger · · Score: 4, Insightful

    "Why wait around for the batteries to charge when you could have standard interchangeable battery packs?"

    This comes up every time rechargeable cars comes up, and it is still just as wrong now as the first time.

    First of all, not all batteries will be the same. Most of the battery chemistries in use for electric cars have a finite cycle life. So, you pull into the station with your brand-spanking-new, only one charge/discharge cycle battery, and you get it swapped out for the battery I left there with 10000 cycles on it, that has a quarter the capacity. True, you could have the pack record and report its charge cycle history, but that doesn't stop the fact that the only "charged" battery the station has right now is my hammered to death pack, and you are getting screwed on the deal.

    Second of all, these packs are HEAVY. Not just the 40 kg your gas tank is, but more like several HUNDRED kilograms. They have to be an integral part of the car's frame, or else in a collision they are going to play Hulk and "HULK SMASH!" their way through the rest of the car (and likely you!). Making something that is BOTH well attached to the car's frame AND easily removable is like making a pocket sized 52" display.

    Third of all is the machinery to pull that pack out of your car. It has to be automated, or it has to be operated by a trained operator. When was the last time you had somebody else pump your gas? OK, so skip the trained operator, it has to be automated such that a) BillyBob can "run" it, b) it can handle the car being parked at any number of weird angles to the system, c) it won't crush Little Billy who gets in the way, and d) it POSITIVELY CANNOT have ANY chance of scratching the paint, because BillyBob *WILL* accuse the station of just that, even when the "scratch" has doe fur and hoofprints!

    Fourth of all is the issue of what happens if you run out of power out on the road. Right now it is no big deal for [AAA|The Highway Patrol|a passing motorist|A tow truck] to get you a gallon or two of gas so you can make it to a gas station. Good luck with swapping the battery pack in the road. OR you have to have a charging port + a special portable charging system to get you the equivalent of that "couple of gallons" of gas.

    I see you are a fan of mine, and I hope my pointing this out won't change that, but - there are good reasons swapping batteries, while great for your phone, doesn't scale to your car.

  7. Re:how about cellphones first? by natehoy · · Score: 4, Insightful

    Yes, and no.

    The iPhone can use USB as a power source, but (unless they've added it) it lacks one of the standard USB connectors on the PHONE side.

    In other words, I have a charging cable I bought for $5 in my car. One side has a "cigarette lighter" plug, the other has a USB-mini plug that plugs into my phone.

    I fully realize it's possible to charge an iPhone over a USB connector, and it's the same connection that provides power (my wife has an iPod Touch). But that requires a special cable - the PHONE side is not USB standard.

    I guess you're stupid, ignorant or a bigot.

    It is possible to disagree with someone, or attempt to point out some information you think that person might not have, without dropping to the level of insult.

    --
    "This post contains words, known to the State of California to cause thought. Wash brain thoroughly after reading."