Thứ Năm, 24 tháng 11, 2016

CHAdeMO Adapter part 8

  • Mar 14, 2015
    wk057
    It would be pretty cool if Tesla sold an Ultra High Powered Wall Connector that was basically a mini supercharger that did something like 50kW using five of the 10kW charger units and 200A input from five 50A breakers or similar. :p
  • Mar 14, 2015
    pvh
    They do. It is called a fast charger and charges at 60kW speed.. They have a double one in Amsterdam at the taxi company that has a s...load of Tesla Taxis for the airport.
  • Mar 14, 2015
    dirkhh
    Do you happen to know what they charge for that fast charger?
  • Mar 14, 2015
    pvh
    Not yet but soon I will. I know it is has the same stalls as a SuC and the one in Amsterdam is 2x60 but it cannot do 120kW to a single car. So I guess it is not as sophisticated as a real SuC to save costs. Also a 175kVA connection is sufficient for such a charger.
  • Mar 16, 2015
    Bifff67
    Well, if its still of interest, just got my adapter. Got email on the 6th and arrived today the 16th. not bad. I'll try it out at Dulles Town Center soon to get some numbers (NRG 44KW).
  • Mar 17, 2015
    Mario Kadastik
    Well yesterday I managed a long charge on one of the CHAdeMO stations here (due to probably a software bug the DC part allowed to charge also for 4h instead of 1h so I got from 25% to 100% before it disconnected after 2.5h of charging, got loads of balancing etc as well).

    I only had my laptop with VisibleTesla open after about 15-20 min of charging so only recorded from 40% onwards, but that's what the power rating looked like. This station is 35kW limited so it's limited to 85A current and the power comes up as the battery voltage increases. It hit 34kW just before hitting 90% SoC and tapered quickly after that.

    Screen Shot 2015-03-17 at 09.53.48.png
  • Mar 20, 2015
    AEdennis
  • Mar 27, 2015
    stephenpace
    I successfully charged on an ABB and Nissan CHAdeMO chargers today for 20 minutes each. ABB was a combined Chademo / CCS 50 kW unit. The car pulled 118A 358V. Nissan unit LCD showed 107A 379V sustained and the Model S reported 103A 364V. I was less successful with a BTCPower one, but I'm going to check with them to see if there is a firmware update for their unit that gets past the problem.
  • Apr 8, 2015
    jbcarioca
    FWIW the wait list seems gone. I asked to be put on the list on April 6th, received an email asking for an order today, the 8th, which I did and the unit shipped today. That does not seem to be a back order to me, but they are demanding a VIN to fulfil.
  • Apr 8, 2015
    dirkhh
    Yep, that seems pretty much "available" - yet the web shop still says "coming soon"
  • Apr 8, 2015
    VolkerP
    Well then the "coming soon" will be going away soon.
  • Apr 8, 2015
    ThosEM
    Very nice data set, but is the Y axis power in kW or? It's interesting that it ramps up steadily before falling off and I'm trying to understand that...
  • Apr 8, 2015
    NOLA_Mike
    The "coming soon" is gone. I just ordered it from the Accessories Section of the Tesla Website. VIN is now optional and I assume only needed if you don't have supercharging activated and need to activate CHAdeMO.

    Mike
  • Apr 8, 2015
    dirkhh
    Yay, finally!
  • Apr 8, 2015
    MDK
    I also saw the power increase when I tested my CHAdeMO adapter - and it's because I was drawing maximum Amps from the charging station, and Volts slowly climbed as the batteries gained charge.
    I was getting a constant 122A, with 355V (43kW) when I started - with battery at 32% - and 377V (46kW) when I stopped at 60% (30 minute limit at this station)

    Mario said his station was limited to 85A so in his case the power increased with voltage from ~30kW to 34kW before the current was reduced at 90%

    You don't see the power increase at superchargers because they decrease the current as the voltage ramps up.

    VT-CHAdeMO.png
  • Jul 17, 2015
    AEdennis
    Finally found a dual CHAdeMO/CCS that offered charging for "free". So, I drove out there and wrote an update post for my blog.


    It also covers for "pay to use" steps as well.


    Update Here.


    The charger is located at ARTIC (the Anaheim Regional Transportation Intermodal Center.)


    19131727644_a6f0d2c138_c.jpg IMG_20150715_163343 by Dennis Pascual, on Flickr



    It is a beautiful transportation hub near Disneyland.


    19131736474_696ab0999d_c.jpg IMG_20150715_163847 by Dennis Pascual, on Flickr



    And achieved the fastest charge on a CHAdeMO that I've seen (152-156 miles per hour.)
  • Jul 17, 2015
    miimura
    What brand is the station (ABB? Efacec?) and how many amps did you get?

    Edit: Plugshare shows that it's a Efacec CCS/CHAdeMO unit.
  • Jul 17, 2015
    brianman
    If you click this "IMG" link on his post, it takes you to Flickr. Two images back it shows the Efacec plate with numeric details.
  • Jul 17, 2015
    miimura
    Thanks. The nameplate says 120A. Does it really give 120A through the Tesla adapter?
  • Jul 17, 2015
    Oba

    Yes
  • Jul 17, 2015
    AEdennis
    Sorry for late response... Been out and about driving my wife's Roadster...

    Yes, it's an Efacec and runs 152 miles per hour when I first started, then ramped up as high as 156 miles per hour...

    That's significantly faster than the Eaton at Mitsubishi or the Nissan in West LA that I've tested.
  • Jul 21, 2015
    lg_golfs
    Apologies I have not read through the pages. It looks like the CHAdeMO bypasses the mobile connector cable. Is that correct? If so, this might be a great item to keep in my car. I actually have a decent amount of CHAdeMO and where I am planning on taking my next two road trips.
  • Jul 21, 2015
    scottf200
    CHAdeMO_Adapter_InContext_v02_1024x1024.jpeg
  • Jul 21, 2015
    AEdennis
    The CHAdeMO adapter does not use the UMC/MC of the car. It is like the J1772 adapter in that it plugs into the connector and then to the charger.

    A lot of CHAdeMO chargers cost $ to use above the power that you use. If you're plugging in overnight, I recommend a slower charge J1772 if out in public and away from Superchargers.

    The picture that @Scottf200 is as good as anyone elses to show the size and what you have to deal with for the CHAdeMO adapter.


  • Jul 22, 2015
    Oba
    It might be easier to compare the CHAdeMO speed with amps delivered. One twist to that is that the dash display in the car is showing the net amperage, less overhead for the car. The current maximum is 125 amps for the CHAdeMO standard.

    Very, very few will be at 125 amps, and most will be at 120 amps. Virtually all of the Nissan units are 115 amps. Particularly in California, some of these units have been dialed down as low as 48 amps.
    Folks tend to equate the CHAdeMO adapter with any failing in speed not realizing, perhaps, that it's the settings in the actual charger that are limiting speed.

    Power (kW) is merely amps multiplied by volts. Your particular voltage is based on which car you have, as the cars currently have two maximum voltages; 352v for 60/70 cars (84 cells in series) and 403v for 85 and probably 90 cars (96 cells in series).

    Therefore, pulling 115-125 amps from a CHAdeMO charger with a higher voltage battery will show more "MPH" and kW than one with a lower voltage. My point is that to accurately compare CHAdeMO performance to each unit, amps is key, not MPH or kW.

    I plugged my car into a Nissan CHAdeMO unit operated by NRG / eVgo in Los Angeles recently. Not surprisingly, it performed exactly as I expected, delivering the rated amps, and displaying the rated amps less the vehicle's overhead of several amps on the dash.

    Typical performance of my 70D on a Supercharger(max rated miles 240):

    Min - Rated Miles - Volts - Amps - kW - MPH Calculated@ 287 Wh/mile

    0 ------- 7 --------- 282 --- 0 ------- 0 ------------- 0 ----
    1 ------- 9 --------- 310 -- 367 -- 113.7kW ------ 396mph
    2 ------ 21 --------- 316 -- 360 -- 113.7kW ------ 396mph
    7 ------ 49 --------- 322 -- 335 -- 108.8kW ------ 379mph
    10 ----- 65 --------- 324 -- 305 -- 98.8kW ------- 344mph
    15 ----- 92 --------- 327 -- 254 -- 83.0kW ------- 289mph
    20 ---- 113 --------- 331 -- 216 -- 71.5kW ------- 249mph

    With any CHAdeMO adapter, the charger will merely chug along at whatever setting that the charger is set at in amps until perhaps 80% (200 miles for my car). This assumes, of course, that the adapter doesn't overheat and slow down (already has happened), or the charger overheat and shutdown (common with Nissan chargers), or the battery temperature is too hot or cold, et al. What follows is a dramatization of a 115 amp Nissan charger with my car. Remember, 115 amps will show as 111-112-ish on the dash:

    Min - Rated Miles - Volts - Amps - kW - MPH Calculated@ 287 Wh/mile

    0 ------- 7 --------- 282 --- 0 ------- 0 ------------- 0 ----
    1 ------- 9 --------- 300 -- 111 -- 33.3kW ------- 116mph (about two miles per minute)
    4 ------ 17 --------- 306 -- 112 -- 33.5kW ------ 118mph
    16 ----- 49 --------- 312 -- 111 -- 33.8kW ------ 120mph
    25 ----- 65 --------- 316 -- 112 -- 34.6kW ------- 122mph
    40 ----- 92 --------- 320 -- 111 -- 35.0kW ------- 124mph
    55 ---- 113 --------- 324 -- 111 -- 36.0kW ------- 125mph
    75 ---- 153 --------- 333 -- 112 -- 36.5kW ------- 127mph
    90 ---- 183 ----------343 -- 111 -- 37.3kW ------- 130mph
    105 --- 210 --------- 352 -- 108 -- 38.0kW ------- 133mph (first amp limiting due to max volts)
    120 --- 228 --------- 352 --- 60 -- 21.1kW -------- 73mph
    140 --- 240 --------- 352 --- 0 -------0kW --------- 0mph

    Hopefully, it's easy to see how an 85-90kWh Tesla with 403v battery during charging wiill gain significantly more rated miles and higher kW with CHAdeMO:

    111a * 385v = 43kW typical

  • Jul 22, 2015
    smilepak
    I was skeptical, but turned out the best investment. Until we can get more supercharger, it's the fast public charging available
  • Jul 24, 2015
    AEdennis
    Ok, I was by ARTIC today and decided to see what the maximum Amperage at this location was and it goes between 121 and 122 A for most of this charging session and at 391 V... So, that's 47,702 watts(?)/47.7 kW. Right? (Someone check me, I'm learning this from you guys... It's been entirely too long since high school Physics class)

    Getting 156 miles per hour on my S85
  • Jul 24, 2015
    JMG
    Used mine the other day at a WalGreens outside of Denton, TX and got the red alert on my dash that the CHAdeMO adapter was very hot after about 20 minutes. It automatically dialed back the amps to 15 or so for a while. Slowed me down. :frown:
  • Jul 24, 2015
    andrewket
    Interesting. I haven't used my adapter much, but thus far I've only seen the charger overheat not the adapter.
  • Jul 24, 2015
    physicsfita
    Your calculations are correct!
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