TickTock said:I am still trying to figure out what problem they are trying to solve.
Yanquetino said:My biggest concern is, if Nissan decides to adopt SAE's all-in-one "standard," will it even fit inside the charging port on the LEAF?
It seems to me that they'd have to make the entire opening larger (taller) to accomodate it. If so... good luck trying to retrofit existing LEAFs: they'd have to install the receptacle sideways!
JPWhite said:An adapter would solve the physical space issue. Not sure if it could solve the signalling differences, Hopefuly so.
mitch672 said:Nope, if you read the PDF document from SAE linked here, the "signalling" is going to be "powerline carrier" (meaning it's transmitted over the 2 AC pins on the J-1772 connector).
To play devil's advocate here for a moment using an example that everyone in the US /does/ deal with on a daily basis, think of it like a wall outlet. If you have a three-prong grounded outlet on your wall, but a two-prong plug, you can still plug the two-prong plug into the three-prong outlet. You cannot, however, plug a three-prong plug on a device into a two-prong outlet on your wall. The upshot of this is that if you have three-prong outlets in your house, you can plug whatever you get in anywhere in your house. If, however, you have parts of your house still on older wiring (an actual situation in both my parents' house and my own), you may have certain places where you only have older NEMA1 two-prong outlets, where you cannot plug in a three-prong plug.TickTock said:I am still trying to figure out what problem they are trying to solve. DC charger - use DC plug. AC charger use the other one. It would be like making a USB+headphone jack combo plug for the front of a PC just in case someone isn't sure which to use.
mitch672 said:Nope, if you read the PDF document from SAE linked here, the "signalling" is going to be "powerline carrier" (meaning it's transmitted over the 2 AC pins on the J-1772 connector)
Herm said:mitch672 said:Nope, if you read the PDF document from SAE linked here, the "signalling" is going to be "powerline carrier" (meaning it's transmitted over the 2 AC pins on the J-1772 connector)
Does that make anyone shudder?
My only problem with that is it makes it extremely difficult, if not impossible, to retrofit CHAdeMO equipment with this setup. I can understand the desire to make one connector usable for all charging situations, but this is a whole different animal. Swapping ports and cables isn't gonna cut it.Herm said:Does that make anyone shudder?mitch672 said:Nope, if you read the PDF document from SAE linked here, the "signalling" is going to be "powerline carrier" (meaning it's transmitted over the 2 AC pins on the J-1772 connector)
Now . . . THAT is just ridiculous -walterbays said:Here's a sneak peak at SAE's next proposed standard. It replaces the gasoline pump nozzle and the diesel pump nozzle with a single convenient connector. Although petroleum cars currently on the road have individual sockets for gas and/or diesel, and no car company has announced plans to build any car which could use the new connector, some SAE members may wish to enter the petroleum car market in the future. So SAE expects deployment of old style petroleum pumps in the U.S. to halt until the new standard pumps are ready. The rest of the world will of course continue to use the separate gasoline and diesel connectors.
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When the connection is used for DC charging, the AC pins probably won't be connected to anything but the charger. There's no need for AC power to be applied. Noise from the car can be filtered...and the car side will be tested thoroughly by the maker, anyway.Nekota said:..I like powerline signaling and have used X10 (aka BSR) since it was introduced 40 years ago but the added noise and filtering that other circuits create (CFL add noise, magnetic ballast suppress signals) it's going to require additional AC line filtering to be robust. And our LEAFs generate noise too...
Smidge204 said:My only problem with that is it makes it extremely difficult, if not impossible, to retrofit CHAdeMO equipment with this setup. I can understand the desire to make one connector usable for all charging situations, but this is a whole different animal. Swapping ports and cables isn't gonna cut it.Herm said:Does that make anyone shudder?mitch672 said:Nope, if you read the PDF document from SAE linked here, the "signalling" is going to be "powerline carrier" (meaning it's transmitted over the 2 AC pins on the J-1772 connector)
=Smidge=
...“A Chademo charger could conceivably be reconfigured as an SAE charger,” said Mark Perry, product planning director at Nissan North America. “It could even have both plugs to accommodate all electric vehicles.” ...
TEG said:http://www.nytimes.com/2011/08/28/automobiles/electric-car-makers-quest-one-plug-to-charge-them-all.html
...“A Chademo charger could conceivably be reconfigured as an SAE charger,” said Mark Perry, product planning director at Nissan North America. “It could even have both plugs to accommodate all electric vehicles.” ...
TEG said:http://www.nytimes.com/2011/08/28/automobiles/electric-car-makers-quest-one-plug-to-charge-them-all.html
...“A Chademo charger could conceivably be reconfigured as an SAE charger,” said Mark Perry, product planning director at Nissan North America. “It could even have both plugs to accommodate all electric vehicles.” ...
JPWhite said:TEG said:http://www.nytimes.com/2011/08/28/automobiles/electric-car-makers-quest-one-plug-to-charge-them-all.html
...“A Chademo charger could conceivably be reconfigured as an SAE charger,” said Mark Perry, product planning director at Nissan North America. “It could even have both plugs to accommodate all electric vehicles.” ...
So instead of calling a charger CHAdeMO and SAE compatible, we'll just say Hydra charger
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