kingofthehuns
Posts: 2
Joined: Mon Jun 18, 2012 1:30 am
Delivery Date: 17 Oct 2011

Re: Logging data from Leaf's OBD II port

Mon Jun 18, 2012 1:35 am

garygid wrote:Items 1, 2, 9, and 10 we have.

Items 4-8 are not yet included as "discovered" or "found" in my Recipe file. However, Ingineer probably knows where most of that data is in the messages from the LEAF's three can busses.

Finding the desired data is the difficult part, unless you have "inside" information.

GPS: I do not know for sure, but I think that the car's GPS position is not present on the LEAF's CAN busses ... but I could be wrong.

However, I could easily add reading and logging GPS Lat, Lon, and Alt (and maybe Date and Time) from the "NEMA?" messages coming in a 5th (virtual) Comm Port.

And, an external USB-connected GPS is easy to obtain. I have one here somewhere.

What do you need that CAN-Do (free) cannot do?

1. I am planning to add Log-to-File (not just to memory) to CAN-Do, to facilitate automated logging.

2. I intend to add Logging of an external GPS as a new feature.
4. 0x180, D5 ( D0-D7 ) - confirmed
5. 0x1CB, D2 ( D0-D7 ) - confirmed
7. 0x55A

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garygid
Gold Member
Posts: 12469
Joined: Wed Apr 21, 2010 8:10 am
Delivery Date: 29 Mar 2011
Leaf Number: 000855
Location: Laguna Hills, Orange Co, CA

Re: Logging data from Leaf's OBD II port

Mon Jun 18, 2012 10:46 pm

What makes you think that EV:55A D2, D3, or D6
(of D1-D8) are battery temperatures?

I have an EV-CAN log of doing a QC from about 30% to 80%
where one of these goes down slightly, and the other two go
up slightly.

Might these be Motor, Charger, and Inverter temperatures, which
should all be close because they have the same cooling system?
One might expect a hot motor and inverter to cool somewhat,
while the charger might heat a small bit (because it is ON but
not cdoing charging) during a QC session.
See SOC/GID-Meter and CAN-Do Info
2010 Prius
2011 LEAF, 2014 Tesla S85
2018 & 2019 Tesla Model 3
PU: SDG&E
Solar PV: 33 x 225W -> 7 kW max AC
Craigslist: Xm5000Li Electric Motorcycle

AndY1
Posts: 6
Joined: Wed Feb 23, 2011 12:58 pm

Re: Logging data from Leaf's OBD II port

Tue Sep 18, 2012 10:47 pm

Do you have PID formulas for the Android Torque application for SOC and battery voltage?

I've been using it (Torque + BT OBD2 scanner) on the demo PiP and my Ampera. Next week I'll be able to test Nissan Leaf and I'd like to do some videos like these in my YT channel:

http://www.youtube.com/user/AndY1ksi/vi ... rid&view=0" onclick="window.open(this.href);return false;

ztanos
Posts: 808
Joined: Mon Apr 30, 2012 7:31 pm
Location: Canton, Ga
Contact: AOL

Re: Logging data from Leaf's OBD II port

Wed Sep 19, 2012 7:37 am

AndY1 wrote:Do you have PID formulas for the Android Torque application for SOC and battery voltage?

I've been using it (Torque + BT OBD2 scanner) on the demo PiP and my Ampera. Next week I'll be able to test Nissan Leaf and I'd like to do some videos like these in my YT channel:

http://www.youtube.com/user/AndY1ksi/vi ... rid&view=0" onclick="window.open(this.href);return false;
I've asked about this app before and never got any response. I would love to know if it works as I have the exact same setup you do. Please let us know.

AndY1
Posts: 6
Joined: Wed Feb 23, 2011 12:58 pm

Re: Logging data from Leaf's OBD II port

Wed Sep 19, 2012 10:16 pm

It worked with the demo PiP and it works with my Ampera. I'll report back if it works with the Leaf. So far, I've only found this formula:

http://www.mynissanleaf.com/viewtopic.p ... 42#p126647" onclick="window.open(this.href);return false;

I don't know if it works or not, but I'm curious why is this information so hidden. I mean, there are members over here, that made a scanner to read exactly these values.

DrInnovation
Posts: 197
Joined: Sat Nov 12, 2011 1:47 pm
Location: Colorado Springs. Volt Owner

Re: Logging data from Leaf's OBD II port

Tue Oct 02, 2012 8:13 pm

AndY1 wrote:It worked with the demo PiP and it works with my Ampera. I'll report back if it works with the Leaf. So far, I've only found this formula:

http://www.mynissanleaf.com/viewtopic.p ... 42#p126647" onclick="window.open(this.href);return false;

I don't know if it works or not, but I'm curious why is this information so hidden. I mean, there are members over here, that made a scanner to read exactly these values.
The OBDII standard ( SAE J1979) for hybrid traction battery is
OBDII PID 01 5B (Type precent Formula for torque is A*100/255) to get percent A*BATSIZE/255.0 to get kWh).

Don't know if the rules apply to a BEV, but it is what is what i use on my volt..
Loving the Volt. I've saved 29 gallons compared to a BEV+CUV. From 10/29/11 to 12/29/12, went 11097 on 27.7 gallons of gas + 2742kWh Total fuel costs=$259.27, yielding: 0.25 gal./100mi, 400.5 MPG, 101.73MPGe, 166.5 MPG$ or $.0234/mi.

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Ingineer
Posts: 2741
Joined: Fri Oct 15, 2010 1:09 pm
Delivery Date: 13 Jul 2011
Leaf Number: 6969
Location: Berkeley, California
Contact: Website

Re: Logging data from Leaf's OBD II port

Wed Oct 03, 2012 12:25 am

The Leaf is not OBDII compliant (it does not have to be, as it has no combustion engine), and thus it does not respond to the OBDII Pids. All the diagnostic information is Proprietary to the Leaf. In addition, even though the Leaf has a DLC3 connector just like other OBDII compliant cars, it is a non-standard pinout.

An off-the-shelf OBDII interface will not work properly with the Leaf.

-Phil
Easily Learn Electricity HERE! - - - - Website: http://evseupgrade.com/[/size] - - - - Like us on Facebook: EVSE Upgrade

DrInnovation
Posts: 197
Joined: Sat Nov 12, 2011 1:47 pm
Location: Colorado Springs. Volt Owner

Re: Logging data from Leaf's OBD II port

Wed Oct 03, 2012 1:16 pm

Ingineer wrote:The Leaf is not OBDII compliant (it does not have to be, as it has no combustion engine), and thus it does not respond to the OBDII Pids. All the diagnostic information is Proprietary to the Leaf. In addition, even though the Leaf has a DLC3 connector just like other OBDII compliant cars, it is a non-standard pinout.

An off-the-shelf OBDII interface will not work properly with the Leaf.

-Phil
Thanks Phil.. I guess I'm not terribly surprised as I presumed someone would have already done this if it worked. I posted here because someone suggested I should and I could not easily find the answer that i was not OBDII.

(I'll note the volt has second DLC3 connector that with added buses as well. )
Loving the Volt. I've saved 29 gallons compared to a BEV+CUV. From 10/29/11 to 12/29/12, went 11097 on 27.7 gallons of gas + 2742kWh Total fuel costs=$259.27, yielding: 0.25 gal./100mi, 400.5 MPG, 101.73MPGe, 166.5 MPG$ or $.0234/mi.

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