Talk:CHAdeMO

History

There is a really good overview of history of development and standardization in this 2015 annual report: http://www.chademo.com/wp2016/wp-content/uploads/2016/06/FY2015ActivityReport_en.pdf#page=3

However, it does not cover all the lead-up work done by TEPCO and it's partners since from around 2005 or so.

Article needs a photo

This article could really benefit from a photo of the (proposed) connector. I am adding a {{reqimage}} tag. N2e (talk) 10:33, 24 June 2010 (UTC)

It could also very much benefit from a schematic diagram of the connector: polarity, voltage and current ratings, male and female pins and plugs, etc. N2e (talk) 18:24, 10 August 2010 (UTC)

Portland station

http://www.engadget.com/2010/08/06/north-americas-first-public-use-quick-charge-station-opens-in-p/

Guidod (talk) 19:53, 13 August 2010 (UTC)

More about DC Charging

The article says:

Most electric vehicles have on-board rectifiers that transform alternating current from the electrical grid to direct current suitable for recharging their batteries. Cost and thermal issues limit how much power the rectifier can handle, so beyond around 230 V and 70 Amps it is better for an external charging station to deliver direct current to the vehicle. Such high voltage high-current charging is referred to as DC Fast Charge and was formerly referred to as level 3 charging.[5]

It is not the rectification of AC power that is the issue with on-board fast chargers (that is easy to provide). What is expensive and heavy to do on-board is the line isolation (required for safety); smoothing of the pulsating DC that comes out of rectifiers (unless the input is 3-phase); and especially the control of the voltage and current to the exacting, variable standards required by the battery as the charge progresses. Level 3 DC chargers must do all this while obeying control signals from the vehicle's battery management system that request moment by moment the specific voltage and current the battery is capable of accepting. The protocol for these control signals is as important to a level 3 charger interface specification as is the specification of the plug and jack itself.

The SAE is working on a level 3 DC charger interface spec which is not yet ready, and may or may not end up compatible with CHAdeMO (I don't know the details). If incompatible, this will pose a problem for owners of the thousands of LEAFs that will be hitting the roads this (2010) December, many with the optional CHAdeMO charge jack. If the eventual U.S. standard is incompatible, will there be a way for these customers to charge from then-standard level 3 DC chargers? A mere plug and jack difference can be bridged with an adapter, but if the control protocols differ, such an adapter would have to be intelligent. Differing voltage and current limits may or may not pose another problem to such adaptation.

Rgremban (talk) 00:54, 15 September 2010 (UTC)

DC power limits

Under Fast DC Charging the article states "In this style of connection, the charger's DC output has no effective limit, theoretical or practical. " This implies that almost infinite current can be drawn, or near infinite voltage supplied, which is probably not what the writer meant. In any DC connector there has to be a limit in current per connector due to heating through ohmic loses, and there has to be a limit in voltage due to insulation breakdown between connectors. John a s (talk) 10:38, 26 December 2015 (UTC)

External links modified

Hello fellow Wikipedians,

I have just modified one external link on CHAdeMO. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

• Added archive https://web.archive.org/web/20110716232506/http://www.theeestory.com/files/IEC_62196-2-X_Proposal_2009-01-29.pdf to http://theeestory.com/files/IEC_62196-2-X_Proposal_2009-01-29.pdf

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

• If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
• If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 14:11, 28 July 2017 (UTC)

West cost electric highway

This section is only indirectly related to CHAdeMO charging and probably doesn’t need a section dedicated to it. — Preceding unsigned comment added by 2A02:C7D:5D51:F700:49DC:A818:92FC:BEC3 (talk) 23:19, 5 December 2018 (UTC)