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Re: Nissan/AV L2 EVSE not charging

Posted: Sat Feb 26, 2011 6:09 am
by Ingineer
Well, I know for sure it at least initially adheres to the PWM limit. The L1 EVSE sends a 12A limit, and the Leaf adheres to this on 120V or 240V appropriately.

The test I'll do as soon as I get the chance is to vary the duty cycle dynamically and see how quickly the Leaf adjusts, if at all.

-Phil

Re: Nissan/AV L2 EVSE not charging

Posted: Sat Feb 26, 2011 12:42 pm
by evnow
GeekEV wrote:
AskDrStupid wrote:That's funny because the first thing I thought of was that it sounds more like "someone" isn't fully capable of installing the EVSE and instead of implying that he has had two bad chargers, maybe he can take responsibility for not knowing what he's doing as he plays electrician and screws up both EVSEs when he installs them. But who am I to expect that? Ha ha ha! :lol: :lol: :lol:
Ouch. I don't care how many smiley faces you put, that's just rude. Combining your nickname with the fact that this is your first post almost makes me wonder if you're a rep from AV monitoring this thread and trying to salvage your reputation by dissing me...
Yes, believe it or not, you got that right. "AskDrStupid" is posting from an IP that points to Aerovironment. I've sent a warning to the poster.

If anyone thinks Nissan and other related companies aren't reading posts here, rethink.

I don't know whether the poster had any permission from AV to do what he did or he was just doing it on his own. Either way, very poor judgement and business ethics.

Re: Nissan/AV L2 EVSE not charging

Posted: Sat Feb 26, 2011 8:07 pm
by GeekEV
Indeed. Thanks for checking that, it gives a sort of closure. :)

Classy.

Re: Nissan/AV L2 EVSE not charging

Posted: Sun Feb 27, 2011 12:55 am
by Visual
Aside from the poor judgement displayed, its kind of funny - the poster from AV certainly picked an apt name - obviously not smart enough to know that blog postings are easily traced by IP!

Re: Nissan/AV L2 EVSE not charging

Posted: Mon Feb 28, 2011 3:38 pm
by bowthom
Hello all,
Here is the chart of our Leaf charger test done today. We found the leaf to be fully compliant with the J1772 standard.
Image

Horizontal is the commanded max amperage (each 10% of PWM signal = 6A) in 1 amp increments, vertical is actual load. You can see the Leaf maintained ~80% of the max amp command.

Also, building a small portable 240V EVSE for opportunity charging is bone head simple, I intend to do so.

Re: Nissan/AV L2 EVSE not charging

Posted: Tue Mar 01, 2011 10:24 am
by DarkStar
bowthom wrote:Here is the chart of our Leaf charger test done today. We found the leaf to be fully compliant with the J1772 standard.
So did the problem end up being Shorepower's programming?

Re: Nissan/AV L2 EVSE not charging

Posted: Tue Mar 01, 2011 1:33 pm
by bowthom
Well........ not sure, we were in a hurry last time and may not have qualified the conditions of the test :oops: . His PWM looked picture perfect and the Leaf reacted correctly. He had made no changes to the signal or programming. Don't know what was different. The Prius was still non-compliant. When done with it's charge cycle it returns to 12V rather than 9V so it triggers the "someone disconnected your car" email rather than "charge cycle complete." I didn't stay for the rest of the Prius results so I can't speak to those.
He did say that noise in the signal is not addressed in the J1772 specification and it is possible for RF to cause the charge cycle to end. They are using shielded cable, even though it is not specified, to mitigate RF noise problems. I am keeping in contact with him so if anything new comes up I will post it here.

Re: Nissan/AV L2 EVSE not charging

Posted: Sun Apr 10, 2011 10:58 am
by hill
evnow wrote:
GeekEV wrote:
AskDrStupid wrote:That's funny because the first thing I thought of was that it sounds more like "someone" isn't fully capable of installing the EVSE and instead of implying that he has had two bad chargers, maybe he can take responsibility for not knowing what he's doing as he plays electrician and screws up both EVSEs when he installs them. But who am I to expect that? Ha ha ha! :lol: :lol: :lol:
Ouch. I don't care how many smiley faces you put, that's just rude. Combining your nickname with the fact that this is your first post almost makes me wonder if you're a rep from AV monitoring this thread and trying to salvage your reputation by dissing me...
Yes, believe it or not, you got that right. "AskDrStupid" is posting from an IP that points to Aerovironment. I've sent a warning to the poster.

If anyone thinks Nissan and other related companies aren't reading posts here, rethink.

I don't know whether the poster had any permission from AV to do what he did or he was just doing it on his own. Either way, very poor judgement and business ethics.
Our company makes us log on with our own PIN in order to access the web. Likely AV is the same. It'd be nice to know if the post was actually from some disgruntled employee, or, an officer, director, manager etc. Maybe that'd be worth passing on to Nissan as well. At our company, misuse of company assets/privileges - contrary to company policy are grounds for immediate dismissal. Maybe that's not the case with AV ... what with the lion's share of their business stemming from military contracts.