Page 6 of 8

Re: Charging while driving

Posted: Wed Jan 11, 2017 3:38 am
by arnis
VitaminJ wrote:
arnis wrote:
EVDRIVER wrote:I wish all this generator nonsense would stop. It's a terrible solution no matter how it's done and battery tech and charging is advancing fast to make it all moot. When EVs have cheap 300 mile plus range there will still be people wanting generators.


This is why I said pusher trailer. Makes more sense if done properly :lol:

You better watch your mouth, if I ever come across a nice used 6-7kw generator for a good price I will actually build my roof box :twisted:



What you are going to do with 110V or 230V AC that generator gives? AC is useless.

Re: Charging while driving

Posted: Sun Jan 15, 2017 9:15 am
by VitaminJ
arnis wrote:
VitaminJ wrote:
arnis wrote:
This is why I said pusher trailer. Makes more sense if done properly :lol:

You better watch your mouth, if I ever come across a nice used 6-7kw generator for a good price I will actually build my roof box :twisted:



What you are going to do with 110V or 230V AC that generator gives? AC is useless.

Plug in my EVSE?

Re: Charging while driving

Posted: Sun Jan 15, 2017 12:39 pm
by arnis
VitaminJ wrote:
arnis wrote:
VitaminJ wrote:You better watch your mouth, if I ever come across a nice used 6-7kw generator for a good price I will actually build my roof box :twisted:



What you are going to do with 110V or 230V AC that generator gives? AC is useless.

Plug in my EVSE?


What's the point? Read the topic. Need to "charge while driving". Charger is not operational while driving.
Also with 7kW power (theoretical power) Leaf will run out of juice pretty much 20 miles slower. Idea is to drive
400 miles once a month non-stop.

Re: Charging while driving

Posted: Sun Jan 15, 2017 2:06 pm
by OakLeaf
Aside from the discussion on the merits of charging while driving, I am still curious about the technical feasibility of "Charging while driving".

Specifically, I'm wondering how the Leafs on-board computers would react to getting a charge independent of its own regen? Would it consider this an error/fault condition?

Since the normal built-in charger is locked out during operation, what would happen if an independent charger were used - such as the one detailed at http://www.mynissanleaf.com/viewtopic.php?f=37&t=12323? I would think you should be able to use an AC source with this method.

I've seen a few videos detail how to add an external battery pack https://www.youtube.com/watch?v=Ztejn3YYbvw and a few videos show what can go wrong: https://www.youtube.com/watch?v=7vD2VBAYdTg

From what I gather, it seems like yes, you can add charge to the Leaf while driving (independent of regen) but you need to be mindful not to cause pack imbalance beyond a certain limit. Would still like to hear from anyone else with experience on this subject though!

However, as I often have to remind myself, just because you can do something doesn't mean you should do something - in the end it's probably better to go with a Volt or i3 Rex if you desire to charge while driving. :)

Re: Charging while driving

Posted: Sun Jan 15, 2017 3:00 pm
by VitaminJ
arnis wrote:What's the point? Read the topic. Need to "charge while driving". Charger is not operational while driving.
Also with 7kW power (theoretical power) Leaf will run out of juice pretty much 20 miles slower. Idea is to drive
400 miles once a month non-stop.

These same problems occur in the trailer setup. You haven't offered a solution. Let me know when you drive your Leaf 400 miles non-stop, I will be first to congratulate you.

Re: Charging while driving

Posted: Sun Jan 15, 2017 3:19 pm
by sendler2112
A DC gen trailer through a rear facing quick charge port is not easy for us to do. But it would have been easy for Nissan to do and would have eliminated the one main objection that holds regular people (non early adopters) from buying an EV. People won't buy an EV because it won't make their range 10 times per year.

Re: Charging while driving

Posted: Mon Jan 16, 2017 8:19 am
by arnis
You guys just don't get it. Forget electricity. Trailer is a pusher. It literally PUSHES the Leaf.
No need to have any HV connections. No need to modify Leaf (except trailer hitch).
Yes trailer itself will be more complex. Will have basic clutch. Will have driveshafts from
reduction gear to wheels. Still much more basic mechanics than that stupid AC-DC-AC link.

This trailer will push ANY vehicle with hitch. Even Tesla.
It starts on it's own and stops propulsion with brake light voltage got from hitch connection.

Re: Charging while driving

Posted: Mon Jan 16, 2017 8:51 am
by sendler2112
Actually if you want to go the pusher trailer route, a cvt cycle such as Yamaha Majesty 400 with a hobby remote control servo operating the throttle and the front wheel lifted and chocked into the hitch would work perfect if there is no snow. But now I await the flames.

Re: Charging while driving

Posted: Mon Jan 16, 2017 3:22 pm
by arnis
sendler2112 wrote:Actually if you want to go the pusher trailer route, a cvt cycle such as Yamaha Majesty 400 with a hobby remote control servo operating the throttle and the front wheel lifted and chocked into the hitch would work perfect if there is no snow. But now I await the flames.


That's the spirit. I would get rid of CVT for efficiency and reliability. But it makes things very simple if we just keep the
scooter on the trailer and rear wheel to the ground :lol:

Re: Charging while driving

Posted: Mon Jan 16, 2017 4:32 pm
by sendler2112
CVT means no clutch or gears. And using a scooter on a front wheel hitch means no trailer. Just lift the front wheel and lock it into the hitch. And you have a fun scooter to ride any other time you are not using it as a pusher trailer. A Honda Forza would be much more fuel efficient but wouldn't make quite enough power to maintain 65mph on it's own.