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Thread: JB Straubel in Tokyo

  1. #21
    Roadster 2.5 #0476 benji4's Avatar
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    Quote Originally Posted by TEG View Post
    Doesn't Toyota already have their own EV drive-train like in the iQ?
    Yes, the do -- they seem to be hedging their bets with the Tesla venture and I think it's very likely that within the next two years Toyota will be rolling out more pure EVs as well as offering hybrid solutions on pretty much their entire product line.

  2. #22
    Roadster #1144 + Sig 114 dsm363's Avatar
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    Quote Originally Posted by benji4 View Post
    Back from the event, we had a bit of bad luck with a snow storm hitting yesterday causing JB to show up 1:15 minutes late, so instead of running from 6-8pm, he was only able to talk/take questions for about 45 minutes. It was nonetheless an informative, useful disucussion. Here are the main topics of interest that came up:

    1) CHAdeMO -- My comment/question was basically what dpeilow says above. It's all over the place in Japan now, and is about to proliferate in Europe/US as well, so what is Tesla going to do about it? JB seemed to agree that it will become, or at least has a very good chance of becoming the standard, but that it's not yet a given at this point. He described it as a kind of chicken and egg scenario where it was hard to commit to it if they are not sure yet that is the way the market is headed. My point to him was that certainly it seems that is the way the market is definately headed! He did seem to agree I thought even though he would not come right out and say it...

    Anyway, JB's did at least say that it will be very easy for Tesla to produce a CHAdeMO adapter for the Model S, X, etc., and they will of course produce one if that is the way the market is headed (which I think at this point everybody other than Tesla seems to agree on). So while it seems very unlikely (impossible?) that we are going to see direct CHAdeMO charging, at a minimum there will be an adapter so that CHAdeMO charging stations can be utilized. I also asked him if the Roadster would ever support CHAdeMO or any other sort of quick charging and the answer here was that almost certainly it would not . He said also that any sort of upgrade to the Roadster's charging system such as support for the Model S supercharger is also unlikely.
    This is good news. This seems to be the first I've seen that Tesla has said they can support CHAdeMO if the demand is there. Thanks for looking into all of this.

  3. #23
    Roadster 2.5 #0476 benji4's Avatar
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    Quote Originally Posted by dsm363 View Post
    This is good news. This seems to be the first I've seen that Tesla has said they can support CHAdeMO if the demand is there. Thanks for looking into all of this.
    Definately good news for the Model S and beyond. I was a bit sad to hear that CHAdeMO will never work with the Roadster though . CHAdeMO is all over the place in Japan and you have to think that at this point it really is going to become a global standard.

  4. #24
    Roadster #1144 + Sig 114 dsm363's Avatar
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    Quote Originally Posted by benji4 View Post
    Definately good news for the Model S and beyond. I was a bit sad to hear that CHAdeMO will never work with the Roadster though . CHAdeMO is all over the place in Japan and you have to think that at this point it really is going to become a global standard.
    Yeah. That definitely sucks for Japan. Currently not as big a deal here since I don't think there is one within 200 miles of me but maybe some day. The Roadster is fairly bleeding edge so I'm not surprised Tesla won't support it. They should support their own standard though and convert the Roadster (officially) to the new Tesla plug/DC super charger but that also won't likely happen.

  5. #25
    Roadster 2.5 #0476 benji4's Avatar
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    Exactly, the highway system in Japan has put CHAdeMO charge points up at service areas all over the whole country, and I just don't think there is anyway the Model S would sell here without supporting it. The nice thing about the CHAdeMO charge points is that they are right on the highway service centers every 20 miles or so, so you don't have to go out of your way at all to stop and charge, eat, shop, rest, etc.

    While nothing like the number of CHAdeMO charge points now deployed, Tesla has also installed a pretty impressive array of HPC's around the country:

    Tesla Japan Charging Points - Google Maps

    However, these are generally off the main road since the government has been unwilling to let Tesla have space at the highway serivce areas. So in order to use most of the HPC's, you need to exit the highway, drive another 10 miles to get to the charge point, and then return to the highway. Almost also the highways are toll roads, so the total fee goes up quite a bit since you need to exit the highway once and re-enter. Beyond that, you'd be waiting for 3 hours anyway to get a decent charge into your Roadster with the HPC anyway. Of course in future, if a 400 or 500 mile battery pack were to be available, you could drive far enough to not have to worry about charging. As it is, you can still drive over 200 miles, charge overnight, and then get back on the road. Not too horrible, but certainly not optimal.

  6. #26
    Senior Member Lloyd's Avatar
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    What we have been told in the past is that Chademo takes controll of the charging process, and that is a problem. Tesla is not willing to relinquish the charging of their batteries to another party. Tesla has spent lots of time and $$ to develop the electronics/software to properly charge their batteries. In order to use Chademo they would have to engineer an interface to remove that controll from Chademo. If it is doable for the Model S, it should be equally doable for the Roadster. It just takes $$ for development for the interface. If there is enough call, owners could develop a solution. Once the existing roadsters are no longer under warrenty is should not be an issue.
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  7. #27
    Quote Originally Posted by benji4 View Post
    Anyway, JB did at least say that it will be very easy for Tesla to produce a CHAdeMO adapter for the Model S, X, etc., and they will of course produce one if that is the way the market is headed (which I think at this point everybody other than Tesla seems to agree on).
    Actually only the Japanese automakers and their partners (Renault and PSA) have committed to CHAdeMO. The only other major non-Japanese automaker that indicated they might use CHAdeMO is VW. All of the other makes have backed the Combo plug, which is why Tesla is focusing more on a Combo adapter.

    As for where the industry is heading in general, it's way too early to say before the Combo plug is out. At this point, CHAdeMO doesn't have an insurmountable lead yet (in both vehicles and stations).

    Although I do agree CHAdeMO pretty much is the only DC standard that will take hold in Japan. However, given the size of Japan, Tesla might not need to depend on CHAdeMO. A few strategically placed HPCs or Superchargers can probably cover a lot of area. It really depends on how much demand there is for the Model S/X in Japan and the demand for quick charging.

    It seems to me Tesla has the capability to build a CHAdeMO adapter and will build it if the demand really calls for it, but would really rather not. The most interesting point is if they can build a CHAdeMO adapter "easily" perhaps a Combo to CHAdeMO adapter can also be built easily. That's probably a bigger deal in terms of bridging the two standards.
    Because there are tons of crazy people in this world...

  8. #28
    Roadster 2.5 #0476 benji4's Avatar
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    Quote Originally Posted by Lloyd View Post
    If it is doable for the Model S, it should be equally doable for the Roadster. It just takes $$ for development for the interface. If there is enough call, owners could develop a solution.
    That's not what JB said though... I taped the whole thing and I'll get you his exact words later when I have time to listed to it again, but his basic point was this:

    1) Model S supercharging is based on a standard very close to CHAdeMO and thus creating an adapter won't pose much of a problem
    2) Not so for the Roadster however, and he doubts seriously that they would ever attempt it.

    Quote Originally Posted by stopcrazypp View Post
    Actually only the Japanese automakers and their partners (Renault and PSA) have committed to CHAdeMO.
    True maybe, but since Nissan, Toyota, and Mitsubishi are all commited to it and I'm sure Honda will be as well, it really would be hard at this point to see how it could not become "the standard" or at least "a standard". Those big boys are going to be selling a lot of electric cars and putting in CHAdeMO's all over the place.

    Quote Originally Posted by stopcrazypp View Post
    Although I do agree CHAdeMO pretty much is the only DC standard that will take hold in Japan. However, given the size of Japan, Tesla might not need to depend on CHAdeMO. A few strategically placed HPCs or Superchargers can probably cover a lot of area. It really depends on how much demand there is for the Model S/X in Japan and the demand for quick charging.terms of bridging the two standards.
    Here is the problem with the HPC / supercharger solution for Japan -- the highway system here is not giving Tesla space at highway service areas which unfortunately, despite the valiant effort by Tesla Japan to get HPCs installed all over the country, really limits their usefulness. It's just too much a pain in the ass to have to exit the highway, drive 10 miles or more to find the charging station, drive back, and then pay another $10 to get back on the road (possibly waiting in a long line in order to do so). I can predict with pretty much certainty that the only charging solution that will EVER be offered at the service areas is CHAdeMO...that's what's been decided, and that's the way it goes.

    So here we have the problem for Tesla in Japan if CHAdeMO is not supported -- people will just buy Toyotas, Nissans, Mitsubishis, and Hondas because charging them on the road is actually doable. I charged my Tesla at some of HPCs Tesla has installed, and honestly it's an adventure in itself getting off the main road and searching for them, charging, and then getting back to the main road. Most them are placed at expensive hotels, restorts, restaurants etc., where you at a minimum have to sit down for a pretty expensive meal to use the charger. The others are at gas stations where you really don't have anything to do while you wait. Way, way better than not even having them as all, but compared with CHAdeMO right on the highway, it's a losing proposition. So anyway, my prediction is that either support CHAdeMO here, or don't sell very many cars. It's their choice on that.

  9. #29
    ERIC VFX vfx's Avatar
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    The Tesla small plug is so superior. Would be nice if the made is available for other the make for free.

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  10. #30
    Administrator dpeilow's Avatar
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    I still think they are going to run into regulatory issues with an adapter, not to mention the problems with 50kW adapters trailing on the ground.

    Never bought the 'CHAdeMO takes over the car' thing. You can control that.

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