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GeekEV
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Re: Nissan/AV L2 EVSE not charging

Thu Feb 24, 2011 11:03 pm

Running the climate control will make charging take longer. If you're using an end timer and the timers overlap, the climate control may make it miss your end time. There's a setting in the menus as to which timer wins out. Is that what's going on here? If so, try setting the charge timer to end before the climate control timer starts.
Last edited by GeekEV on Fri Feb 25, 2011 11:40 am, edited 2 times in total.

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kolmstead
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Re: Nissan/AV L2 EVSE not charging

Fri Feb 25, 2011 7:47 am

Sorry about that, bowthom. Should have read your question more carefully. The timer topic is one that will require a bit of reading. Both the battery pack and the heater can consume the entire 3.3 kW that the built-in charger can provide, so Nissan has provided a user-settable priority... charging timer or preconditioning timer. The factory default is charging. GeekEV has it right.

-Karl

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Re: Nissan/AV L2 EVSE not charging

Fri Feb 25, 2011 9:24 am

And it appears that on L1 the Climate Control pre-conditioning actually draws from the battery in addition to drawing from the wall, slightly reducing the range ( I don't have exact data ). But at least there seems to be a 15minute timeout on that function (if activated from browser or via timer on browser -- have not tried the timer in the car).
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bowthom
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Re: Nissan/AV L2 EVSE not charging

Fri Feb 25, 2011 4:25 pm

OK I get it, I have lots-O-studying to do yet.
On another topic, I went over to Shorepower to test their new L2 charger revision with the Leaf. The Leaf did not respond to J1772 commands to ramp down current. It stayed at 3.5kW. There was a Prius plugin hybrid there also that had the same response so not sure what to make of it.
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GeekEV
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Re: Nissan/AV L2 EVSE not charging

Fri Feb 25, 2011 4:42 pm

bowthom wrote:On another topic, I went over to Shorepower to test their new L2 charger revision with the Leaf. The Leaf did not respond to J1772 commands to ramp down current. It stayed at 3.5kW. There was a Prius plugin hybrid there also that had the same response so not sure what to make of it.
Two different production cars, same response? My guess would be their product isn't working right. :o

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Ingineer
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Re: Nissan/AV L2 EVSE not charging

Fri Feb 25, 2011 7:26 pm

bowthom wrote:OK I get it, I have lots-O-studying to do yet.
On another topic, I went over to Shorepower to test their new L2 charger revision with the Leaf. The Leaf did not respond to J1772 commands to ramp down current. It stayed at 3.5kW. There was a Prius plugin hybrid there also that had the same response so not sure what to make of it.
There are no J1772 "commands", there is only the PWM duty cycle. The car is supposed to not drain more than the duty cycle is set for at any given time. If it's ignoring this, then it's not J1772 compliant.

I've already noted that the Panasonic L1 EVSE is not fully compliant, so this wouldn't surprise me.

-Phil
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bowthom
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Re: Nissan/AV L2 EVSE not charging

Fri Feb 25, 2011 7:33 pm

Maybe, I assumed that too, but then again I was watching the engineer and he had the guts all laid out on the mockup and I could see the commands and the J1772 standards. All was not right with things. I need to download the service manual so I can give him some real data. Because their stations may have a high load when all the ports are being used I assume they want to be able to control the total load to their system if needed.
Reserv Apr 20 - Ord Aug 31
Red - ETEC trim
BLINK inst 3/14/11 (rev 2.1.2B)
P1213 4/29/11 - Charger repl 6/8/11
P1273 2/15/12 - P32270 10/2/13
TCU upgrd 2/15/17
-1bar 11/14 -2bars 6/16 -3bars 7/18 -4bars 9/19

Deliver 2/23/11 - 75k+ mi

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Re: Nissan/AV L2 EVSE not charging

Fri Feb 25, 2011 8:26 pm

bowthom wrote:Maybe, I assumed that too, but then again I was watching the engineer and he had the guts all laid out on the mockup and I could see the commands and the J1772 standards. All was not right with things. I need to download the service manual so I can give him some real data. Because their stations may have a high load when all the ports are being used I assume they want to be able to control the total load to their system if needed.
I'll test this on the Leaf when I get a chance.
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Re: Nissan/AV L2 EVSE not charging

Fri Feb 25, 2011 8:30 pm

Ingineer wrote:
bowthom wrote:OK I get it, I have lots-O-studying to do yet.
On another topic, I went over to Shorepower to test their new L2 charger revision with the Leaf. The Leaf did not respond to J1772 commands to ramp down current. It stayed at 3.5kW. There was a Prius plugin hybrid there also that had the same response so not sure what to make of it.
There are no J1772 "commands", there is only the PWM duty cycle. The car is supposed to not drain more than the duty cycle is set for at any given time. If it's ignoring this, then it's not J1772 compliant.

I've already noted that the Panasonic L1 EVSE is not fully compliant, so this wouldn't surprise me.

-Phil
But would it be compliant on the spin cycle? Did you check that?

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Re: Nissan/AV L2 EVSE not charging

Fri Feb 25, 2011 8:38 pm

So, concerning use of the PWM part of the EVSE-generated Control Pilot signal,
does the LEAF:

1. totally ignore the PWM? (seems unlikely, check L1-Mod EVSE usage in L2 mode)

2. use it initially to set the Max-Current, but ignore it while charging? (quite possible)

3. watch PWM while using current, adjusting to varying PWM? (should do, but possibly does not)
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