Well, frankly, I agree with you. My idea could be done, but it's probably
simpler just to install 2 or 3 ESVEs. Software could be used to limit only
one to operate at a time, but even that's probably hard to justify. Darned
thing is the bulk of the cost of these things are the components that can't
be shared - the contactors, the cables, the connectors. Oh, well.
Peri
-----Original Message-----
From: xxx@xxx.xxx.edu [mailto:xxx@xxx.xxx.edu] On Behalf
Of corbin dunn
Sent: 20 June, 2012 11:43 AM
To: Electric Vehicle Discussion List
Subject: Re: [EVDL] electric car charging station protocol
Hi Peri,
That's an interesting idea, but each individual plug would have to be on its
own contactor/breaker in order to isolate each plug. And each one would have
to have its own circuit to do the pilot signal. So, basically, it would cost
the same to install more charging stations. The thing it would help with is
if the underlying wire to the station isn't capable of carrying enough amps.
If that's the case, then it could more easily be implemented in software in
the EVSE; i.e.: install 3 stations, and make it so only one could charge at
any given time.
corbin
Peri Hartman <xxx@xxx.xxx> wrote:
> One could make an ESVE with several cables. The device could operate
> first-come-first-serve. That is, the first one who plugs in starts
> charing right away. If a second person plugs in with a 2nd cable
> while the 1st is still charging, the ESVE acknowldeges the connection
> but doesn't start charging until the first has completed. And so on.
>
> Peri
>
> -----Original Message-----
> From: xxx@xxx.xxx.edu [mailto:xxx@xxx.xxx.edu] On
> Behalf Of corbin dunn
> Sent: 20 June, 2012 10:20 AM
> To: Electric Vehicle Discussion List
> Subject: Re: [EVDL] electric car charging station protocol
>
> No, this wouldn't work with J1772. Each car individually needs to turn
> the EVSE's contactor on and off individually. If they are daisy
> chained, then no single car would control it, and one plug would end
> up being "hot" when unplugged if another car is still charging.
>
> corbin
>
> On Jun 20, 2012, at 10:09 AM, Lawrence Rhodes
> <xxx@xxx.xxx>
> wrote:
>
>> There was an incident recently where a writer reviewing an electric
>> car was unplugged. A rant ensued. It got me thinking. Couldn't
>> there be a better solution. Wouldn't it be possible to daisy chain
>> charging? A simple adapter could be made. Yes charging might be
>> slower
> but it would allow multiple
>> vehicles(side by side of course) to charge simultaneously . Lawrence
>> Rhodes....
>>
>> _______________________________________________
>> | Moratorium on drag racing discussion is in effect.
>> | Please take those discussions elsewhere. Thanks.
>> |
>> | REPLYING: address your message to xxx@xxx.xxx.edu only.
>> | Multiple-address or CCed messages may be rejected.
>> | UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub
>> | OTHER HELP: http://evdl.org/help/
>> | CONFIGURE: http://lists.sjsu.edu/mailman/listinfo/ev
>
> _______________________________________________
> | Moratorium on drag racing discussion is in effect.
> | Please take those discussions elsewhere. Thanks.
> |
> | REPLYING: address your message to xxx@xxx.xxx.edu only.
> | Multiple-address or CCed messages may be rejected.
> | UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub
> | OTHER HELP: http://evdl.org/help/
> | CONFIGURE: http://lists.sjsu.edu/mailman/listinfo/ev
>
>
>
> _______________________________________________
> | Moratorium on drag racing discussion is in effect.
> | Please take those discussions elsewhere. Thanks.
> |
> | REPLYING: address your message to xxx@xxx.xxx.edu only.
> | Multiple-address or CCed messages may be rejected.
> | UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub
> | OTHER HELP: http://evdl.org/help/
> | CONFIGURE: http://lists.sjsu.edu/mailman/listinfo/ev
_______________________________________________
| Moratorium on drag racing discussion is in effect.
| Please take those discussions elsewhere. Thanks.
|
| REPLYING: address your message to xxx@xxx.xxx.edu only.
| Multiple-address or CCed messages may be rejected.
| UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub
| OTHER HELP: http://evdl.org/help/
| CONFIGURE: http://lists.sjsu.edu/mailman/listinfo/ev
_______________________________________________
| Moratorium on drag racing discussion is in effect.
| Please take those discussions elsewhere. Thanks.
|
| REPLYING: address your message to xxx@xxx.xxx.edu only.
| Multiple-address or CCed messages may be rejected.
| UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub
| OTHER HELP: http://evdl.org/help/
| CONFIGURE: http://lists.sjsu.edu/mailman/listinfo/ev