The controversy in fast charging for electric vehicles (PlugIn …

12 мая 2014 | Author: | Комментарии к записи The controversy in fast charging for electric vehicles (PlugIn … отключены
Nissan CHAdeMO Electric Cars

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At PlugIn the agenda included a benign panel session entitled The Future of Charging. Electric charging is rife with details about battery systems, charge rates, with smart grid, pinouts and more. Imagine surprise when the panel ended with a loud bit of between automakers. Clearly we a controversy brewing in the standards and the controversy is part of the delay in fast charging capability in vehicles. The sooner EV fast infrastructure can be made available the quickly will range be mitigated.

At the same time one not want to see multiple fast standards, as this was one of the pain in the previous wave of electric ten years ago, and we know than to repeat that


What got these automaker to yell at each other charging cords? The argument is fast charging standardization so the can get on with installing it in electric The Japanese have designed a CHAdeMO, which they’re with but the SAE is heading in a different

On the one hand it is enticing to simply the existing system, on the other the SAE committee has what may be a longer holistic vision of the best

Last fall the SAE committee the J1772 connector to implement AC 2 charging. AC Level 2 is single AC at up to 240 volts and up to 80 amps charge at up to 19.2 kilowatts total This is the charging rate results in the 3-6 hour recharging which many think are too

To make electric vehicles attractive some kind of charging system is believed to be and indeed the experience in Japan deploying the CHAdeMO DC fast system is that it resulted in greater electric vehicle The Nissan LEAF, due to reach the US in December, will come a CHAdeMO charging port the J1772 port.

The panel contained members of the SAE who are defining the standards. Each the desired result as a single port, giving two reasons. car designers want to minimize the of holes in the car body. The reason was but aerodynamics and strength are two obvious For a plug-in hybrid like the GM there is one hole for the gasoline hose, another hole for the AC 2 charge port, and would be a third hole for a DC Fast port?

In Nissan’s case accommodated this by having one hole that accommodates the J1772 and CHAdeMO charge Being an electric car it doesn’t a hole for the gasoline filler it would be unable to use.

The reason to have one charging is to reduce confusion. Have two ports and one can easily get a little especially if one switches between cars in the family fleet makers implement the charge in different ways. Have one port and there’s no confusion like today gasoline car can choose between three of gasoline delivered through the filler hose.

The existing fast charging in Japan is in widespread use, by iMiev owners. The Tokyo Power Company (TEPCO) and auto makers jointly the CHAdeMo specification for DC fast It is already installed along highway system and iMiev are happily driving anywhere want simply by stopping for recharges. The panel included Anegawa from TEPCO who there was a tremendous increase in vehicle traffic once the recharging system was installed.

Helsel from Aerovironment on to describe DC Fast Charge as the app of electric vehicles, and Japan’s simply demonstrates that

Mr. Anegawa-san from TEPCO three charging scenario based on real world of electric vehicle owners in At home or at the office one will be for hours and it is acceptable to wait for to recharge the car. Usually.

Nissan CHAdeMO Electric Cars

But in public such as driving on a trip people cannot for hours. Usually. While acceptable for home or office stations to support 3-6 hour public charging is preferred to be at a rate.

Because J1772 support higher charge a different connector is required for charging.

Because the SAE committee is to prefer there is only one port, they are working on ideas to combine pins for DC charging with the connectors used for AC Level 2. The result be a larger connector that’s both with existing ports and new ones which support both AC Level 2 and DC 1 and 2.

What’s at stake is the implementation of charging, increasing electric attractiveness by removing one of the limitations. charging is thought to not be a primary for most electric vehicle since statistics show the majority of driving is over distances. Even though the driving distance is short are those exceptional longer and there are those exceptional who routinely drive long

Both cases are better off fast charging.

The angry came when an audience who is in Mitsubishi RD, asked, not too politely, the issue. In other words, why the SAE committee just get on with it by the TEPCO defined CHAdeMO Doing so is enticing in a short expedient way in that we’d fast charging electric much more quickly.

The from Mark Duvall, and Gery Kissel, GM, reiterated the above that it’s to have a single charge

Standards processes can take a time to work through and come to agreement. It’s in this case some is being made at the committee but regardless of the standardization process vehicles and fast charging is being sold and being today. As another audience pointed out, the longer the takes to come to a decision the cost will be associated the fast charging infrastructure will have been by the time the standard is finished.

Nissan CHAdeMO Electric Cars
Nissan CHAdeMO Electric Cars
Nissan CHAdeMO Electric Cars
Nissan CHAdeMO Electric Cars

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