Re: [EVDL] Anyone interested in 2015 Leaf drivetrain or interior/exterior/suspension parts?

2017-01-23 Thread Jay Summet via EV 



On 01/23/2017 10:07 AM, Ed Blackmond via EV wrote:

Is anyone trying to reverse engineer the handshake between the
Leaf BMS and the rest of the car?


I am interested in learning how to reset the capacity gauge. Cor
replaced the battery cells in my 2011 Leaf about 2000 miles ago.
LeafSpy now reports about 62.5AH, but the capacity gauge on the dash
hasn't budged. I get over 265 GIDs on a full charge and the car has
range equal to what it was when new.  The state of charge gauge works
fine and the distance to empty number is as inaccurate as ever.



Interesting. I had assumed that the capacity gauge shown in the lower
cluster would automatically follow the BMS's readings, but apparently it 
only goes down. Perhaps they are treating it like the odometer, which 
only goes up ;>


I imagine that a dealership has the right software to re-set it.

Perhaps you could just go in and tell them that your capacity gauge 
doesn't agree with leaf spy and ask if they can re-set it for you, 
without telling them WHY it doesn't match


Jay
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Re: [EVDL] "Rolling Clean" for 4/29 WashDC Climate March

2017-01-23 Thread brucedp5 via EV 
[ref
https://www.mail-archive.com/ev@lists.evdl.org/msg19399.html
]

(I like 'Clean Thunder' as an EVent name)
IMO The EV communities best combined efforts are what makes the 
National Drive Electric Week 2017
https://driveelectricweek.org/
 continue year after year to be successful.

There are three orgs working together to make that happen: PIA, Sierra, &
EAA

The idea should be proposed to the WashDC area chapters of each, with
wording of the hope that it will be supported to grow to a national
involvement effort. Contact:

http://www.electricauto.org/content.aspx?page_id=225_id=222684
EVA Washington DC (I)  Charlie Garlow

http://dc.sierraclub.org/content/contact-us-0

https://pluginamerica.org/about-us/contact-us/


Sierra's Brune has his own 'Coming Clean' efforts that might have a synergy
with yours:
http://www.sierraclub.org/michael-brune




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Re: [EVDL] Anyone interested in 2015 Leaf drivetrain or interior/exterior/suspension parts?

2017-01-23 Thread Collin Kidder via EV 
On Mon, Jan 23, 2017 at 3:18 AM, Tom Parker via EV  wrote:
> Is anyone trying to reverse engineer the handshake between the Leaf BMS and
> the rest of the car?

I haven't yet. I haven't had any need to swap batteries in a Leaf.
Instead I've added some to the existing pack but externally so I
didn't need to mess with the BMS in the car.

>
> As I understand it, the Leaf BMS is quite happy to work on it's own but some
> other part car authenticates the BMS and is not happy if the BMS is swapped.
> A friend tried swapping the whole battery including the BMS he says the car
> was not happy, it worked but only in Turtle mode, regardless of state of
> charge.

Yes, it sounds as if it is validating the pack somehow. I don't know
which messages might be responsible for this. I'm working on firmware
that can run on a board with two can buses and then monitor both sides
to determine which frames a device outputs and which it accepts. This
would make it easy to determine the messages actually coming from the
BMS and when they occur but requires cutting the wiring and inserting
the device in between. Though, presumably one needn't keep sending the
validation over and over so it probably occurs early in the process.
Because of that, it might be possible to find the validation message
just by looking at a power train CAN capture and seeing which frames
are sent only early in the process. That's a potential avenue for
attack. Also, the security validation bytes for the Leaf seem to
always use the same algorithm so if there's a security byte it should
already be possible to generate it.

>
> Has anyone identified the CAN bus messages that contain the authentication
> handshake? I've been collecting information at
> https://carrott.org/emini/Nissan_Leaf_OVMS#Leaf_Can_Bus but I haven't seen
> information about the BMS authentication.

I looked at your site. As you found, the big spreadsheet of knowledge
on the Leaf is pretty far off from reality all too often. There are
many falsehoods in there but it's a start.

>
> Could you put a man in the middle between the BMS and the rest of the car
> which allows the original BMS board to authenticate, but replaces all the
> battery status messages with "everything is fine"? Obviously the man in the
> middle would need to talk to the BMS on the new battery (either another
> Nissan or a whole new BMS or whatever) and tell the car everything is not
> fine if the new battery is in trouble.
>

It's certainly possible. A lot of BMS messages have been decoded (kind
of... see above for how much I trust that spreadsheet) but you need to
really thoroughly emulate it in order to do a convincing job of
emulation.
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[EVDL] FW: "Rolling Clean" for 29 April Climate March on DC

2017-01-23 Thread Robert Bruninga via EV 
*From:* Joyce Breiner
*Sent:* Sunday, January 22, 2017 6:30 PM

Perhaps something similar to our EV participation in the Women’s March
could be worked up for the People's Climate March on April 29th.

AMEN!  In contrast to Rolling Thunder, we need a “Rolling Clean” to get EV
drivers from all over the northeast to converge on Washington on 29 April
for this march!  (and other venues across the country).

How can we get this idea up to National EV organizations?

If we can show that we can get enough cars, then maybe we can get in the
march down Pensylvania avenue!

Someone needs to create a sign-up engine that generates the participation
lists like these other marches do.?

Bob
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[EVDL] Battery recycling (was Anyone interested in 2015 Leaf drivetrain...)

2017-01-23 Thread Bill Collins via EV 
>BTW, I didn't know that Battery Recyclers of America will pick up
>your FLA batteries for free. Just have to palletize them.

Are they paying your for scrap value or just recycling them? I got about $200 
for an EV conversion worth of golf cart batteries by taking them to a metal 
recycler.

Bill
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[EVDL] EVLN: EV-newswire posts for 20170123

2017-01-23 Thread brucedp5 via EV 


http://electric-vehicle-discussion-list.413529.n4.nabble.com/EVLN-Buy-A-Cheap-Used-EV-gt-Leaf-EVs-are-so-cheap-and-abundant-now-td4685566.html
EVLN: Buy A Cheap Used EV> Leaf EVs are so cheap and abundant now
... offer these deals because people are still apparently clueless about
electric vehicles ...
... buy a used Leaf for the same price as a Dell laptop ...

brucedp
EVLN: £20k ZOE EV Wins Best EV Award For Fourth Consecutive Year
The Renault ZOE once again shines at the What Car? Awards in the UK,
receiving the title of Best Electric Car under £20,000 for the fourth
consecutive year ...

http://electric-vehicle-discussion-list.413529.n4.nabble.com/EVLN-Watch-GM-s-self-driving-Bolt-EV-navigate-SF-CA-streets-v-td4685564.html
EVLN: Watch GM's self-driving Bolt EV navigate SF-CA streets (v)
We don't get to see the actual car, but a GM spokesperson said it was a
Chevy Bolt. Spy photos recently surfaced of the all-electric vehicle kitted
out with ...

+
http://electric-vehicle-discussion-list.413529.n4.nabble.com/EV-crash-Bolt-EV-w-No-Driver-randomly-turned-itself-on-amp-drove-gt-crashing-in-garage-td4685561.html
EV-crash: Bolt EV w/ No Driver, randomly turned itself on& drove> crashing
in garage
Chevy investigating Bolt EV crash that happened with no one in the car 
 ... your garage parked car all of a sudden it starts ... Chevy Bolt
electric car came alive, reversed into workbench ... Chevy Bolt Has Alleged
Meltdown ... A peculiar case with an eery aura … car keys were inside the
house at the time while the owner ...

http://electric-vehicle-discussion-list.413529.n4.nabble.com/minimal-cheap-EVgo-freedom-station-effort-gt-2-dual-L3-DC-EVSE-w-no-L2-not-pole-signed-td4685559.html
minimal/cheap EVgo freedom station effort> 2 dual L3 DC EVSE w/ no L2, not
pole signed
(a change in the way public EVSE is installed> going cheap is
self-defeating)




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Re: [EVDL] Anyone interested in 2015 Leaf drivetrain or interior/exterior/suspension parts?

2017-01-23 Thread Tom Parker via EV 

On 23/01/17 10:52, Cor van de Water via EV wrote:

I sent you a separate email with an idea to avoid a fake Leaf pack and still 
keep the BMS happy and report SoC.


Is anyone trying to reverse engineer the handshake between the Leaf BMS 
and the rest of the car?


As I understand it, the Leaf BMS is quite happy to work on it's own but 
some other part car authenticates the BMS and is not happy if the BMS is 
swapped. A friend tried swapping the whole battery including the BMS he 
says the car was not happy, it worked but only in Turtle mode, 
regardless of state of charge.


Has anyone identified the CAN bus messages that contain the 
authentication handshake? I've been collecting information at 
https://carrott.org/emini/Nissan_Leaf_OVMS#Leaf_Can_Bus but I haven't 
seen information about the BMS authentication.


Could you put a man in the middle between the BMS and the rest of the 
car which allows the original BMS board to authenticate, but replaces 
all the battery status messages with "everything is fine"? Obviously the 
man in the middle would need to talk to the BMS on the new battery 
(either another Nissan or a whole new BMS or whatever) and tell the car 
everything is not fine if the new battery is in trouble.

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