Stoaty
Posts: 4490
Joined: Fri Jun 18, 2010 9:50 pm
Delivery Date: 12 Jun 2011
Leaf Number: 3871
Location: West Los Angeles

Re: Using clone ELM327 Bluetooth OBDII adapter with Leaf

Mon May 13, 2013 11:48 am

At Gary's suggestion, I have added a link to the Leaf Battery App Manual to my signature.
2011 Leaf with 62,000 miles given to Nephew
2013 Tesla Model S85 with 251 miles rated range at full charge
Leaf Spy Manual
Battery Aging Model Spreadsheet

Turbo3
Gold Member
Posts: 2011
Joined: Mon Jul 19, 2010 8:34 pm
Delivery Date: 12 May 2011
Leaf Number: 002191
Location: San Jose, CA

Re: Using clone ELM327 Bluetooth OBDII adapter with Leaf

Mon May 13, 2013 11:52 am

garygid wrote:
The next version will have an option in the Settings to indicated which CAN bus
the ELM327 is connected to so the app will know which messages it can listen for.
Very nice.

Apparently you are going to add a Braking (Mechanical / Regen) screen?
Wonderful!

You are gradually pulling together all the features that have been discovered.
Splendid work, indeed.

Perhaps if you are displaying a screen that does not use the Query/Response data
(and you are not logging) you could have an option to stop the Queries?
It is available now for testing here http://bit.ly/leaf_batt-v023e

When you are on screen 4 Query/Response must be stopped. It is restarted shortly after you leave screen 4.

If you have specified that the ELM327 is connected to the EV-CAN then the Regen/Brake screen will be replaced with a screen showing real Gids. The real Gids will also be displayed on screen 3. But on screen 3 it will be static (i.e. last value received when on screen 4).

FairwoodRed
Posts: 459
Joined: Wed May 18, 2011 10:25 am
Location: Fairwood, WA

Re: Using clone ELM327 Bluetooth OBDII adapter with Leaf

Mon May 13, 2013 1:13 pm

Sven wrote:Thanks Turbo3 for the work you are putting into this app!

I have tried the 0.22 version with Samsung Galaxy S2 running Gingerbread 2.3.5.
It works nicely for a couple of seconds, then it stops loading data and the yellow "waiting" message stays on the screen, see the screen capture. :cry:

I am using the ELM327 mini adapter. When using the new Sony Xperia Z phone, it seems to work fine.
Sven,

I’m also running v0.22 on a S2 running 2.3.5 and I haven’t seen the troubles that you have. Send me a PM if you want me to try something for you.

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JimSouCal
Posts: 860
Joined: Tue Feb 08, 2011 12:54 pm

Re: Using clone ELM327 Bluetooth OBDII adapter with Leaf

Mon May 13, 2013 1:29 pm

Best ELM327?

I am getting to this party kind of late but think joining is a good idea.

I've read through the thread, skimmed the wiki, and will be getting an ATT fusion prepaid phone at Fry's (will my iPhone SIM work with it, we'll see?). Anyway...

I want to order the ELM327 or equivalent at Amazon, but can't figure out the best one? There is the jumper option, etc. Less important than the cost is which one...?

Would someone mind telling me which one is best and why...? Sorry for being a bit lazy, but I did try and got overwhelmed...

cliff
Posts: 109
Joined: Mon May 13, 2013 10:36 am
Delivery Date: 15 Sep 2012
Leaf Number: 022673
Location: Federal Way, WA

Re: Using clone ELM327 Bluetooth OBDII adapter with Leaf

Mon May 13, 2013 1:36 pm

It appears to me that when calculating gids from soc that the offset between
the 2 may not be used. I found from extrapolation for me that when soc = 0,
gids = -15.
I recorded data on 4-24-2013 for soc, and gids, with my home brew hardware.
Here is a plot of the data:
Image
The red is about 6600 data points, and green is a
linear fit to the data, using gids = soc * .31 - 15.
While the .31 will change with battery age, I do not know if
the -15 gids will change, or is fixed.
Still as a first guess, using this offset might improve simulated gids calculation.

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surfingslovak
Vendor
Posts: 3809
Joined: Mon Jun 13, 2011 1:35 pm

Re: Using clone ELM327 Bluetooth OBDII adapter with Leaf

Mon May 13, 2013 2:15 pm

cliff wrote:I recorded data on 4-24-2013 for soc, and gids, with my home brew hardware. The red is about 6600 data points, and green is a linear fit to the data, using gids = soc * .31 - 15. While the .31 will change with battery age, I do not know if the -15 gids will change, or is fixed. Still as a first guess, using this offset might improve simulated gids calculation.
Image

This is fantastic, thank you for doing this. I didn't think that a linear fit was possible, and it's great to see it black (or green) on white. Perhaps we can find some rational explanation for this, especially as the data from different vehicles will trickle in. There is a very real chance that the veil of mystery will be lifted in the process.

Stoaty
Posts: 4490
Joined: Fri Jun 18, 2010 9:50 pm
Delivery Date: 12 Jun 2011
Leaf Number: 3871
Location: West Los Angeles

Re: Using clone ELM327 Bluetooth OBDII adapter with Leaf

Mon May 13, 2013 2:25 pm

JimSouCal wrote:I've read through the thread, skimmed the wiki, and will be getting an ATT fusion prepaid phone at Fry's (will my iPhone SIM work with it, we'll see?). Anyway...

I want to order the ELM327 or equivalent at Amazon, but can't figure out the best one? There is the jumper option, etc. Less important than the cost is which one...?
I don't think there is a clear answer. You can get the stubby one I got from Amazon that works perfectly with the Fusion 2 phone:

http://www.amazon.com/gp/product/B008U1 ... UTF8&psc=1" onclick="window.open(this.href);return false;

If you want to be able to modify it to read the EV-CAN bus, I think only one has been mentioned as good for that:

http://www.amazon.com/Vgate-ELM327-Blue ... im_sbs_e_6" onclick="window.open(this.href);return false;

I will probably end up getting the Vgate if/when I want to try the modification (probably after it is clear there will be an advantage to doing that). Of course, I already have a Gid Meter (which I am very fond of), but would like to get down to just one device.
2011 Leaf with 62,000 miles given to Nephew
2013 Tesla Model S85 with 251 miles rated range at full charge
Leaf Spy Manual
Battery Aging Model Spreadsheet

User avatar
nogajim
Gold Member
Posts: 309
Joined: Wed Apr 20, 2011 1:26 pm
Delivery Date: 22 Jun 2011
Leaf Number: 3300
Location: Georgia
Contact: Website

Re: Using clone ELM327 Bluetooth OBDII adapter with Leaf

Mon May 13, 2013 3:26 pm

I don't know if anyone has use for this information, but I have been keeping tabs on GID% vs "ELMGIDS%". I have been swapping my GID meter with the ELM and immediately comparing the values. I pasted the numbers in the table below, which is fairly readable. The largest deviation between genuine GIDS and calculated ones was when GIDS were lowest. As long as it is a consistent difference, it is a number that we can use. It would also be interesting to know how well the numbers apply between those with different capacity. At any rate, it is still a more useful number to me than raw SOC%

One other note, on my DROID4, 3 of the last 4 updates caused it to reboot at the end of install. Bug or feature? :)


Thanks Turbo3!
Jim

Code: Select all

Date	 GIDS	Gid%	CAP%	SOC%	ELMGid%
4/24/13	154	54.8	87.98	61.34	-
5/02/13	178	63.3	88.17	69.97	-
5/03/13	136	48.3	88.3	52.51	-
5/05/13	207	73.6	88.59	79.7	-
5/06/13	134	47.6	88.6	53.0	49.8
5/06/13	208	73.0	88.6	80.8	76
5/06/13	132	46.9	88.6	52.4	49.3
5/08/13	135	48.0	88.6	51.8	48.7
5/10/13	102	36.2	88.0	42.0	39.4
5/11/13	 60	21.3	88.0	26.5	24.7
5/13/13	195	69.3	87.48	75.8	70.4
5/13/13	154	54.8	87.48	60.7	56.3
2011 LEAF SLe delivered June 2011
Status: Lost 1st Bar 6-20-13 17,500 mi. Sold 7-19-2014, 28,700 mi - still 1 bar down
2015 SV delievered 7-19-2014
http://www.evclubsouth.org

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JPWhite
Gold Member
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Delivery Date: 30 Jul 2011
Leaf Number: 5734
Location: Hendersonville TN
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Re: Using clone ELM327 Bluetooth OBDII adapter with Leaf

Mon May 13, 2013 3:59 pm

Stoaty wrote:
JPWhite wrote:In addition these clips from Office Depot are ideal for fixing the cable on the under dash area above the feet area.
http://www.officedepot.com/a/products/2 ... e-Pack-Of/" onclick="window.open(this.href);return false;
Will those clips accommodate 2 of the fairly good sized cable we are dealing with? I can't tell how big they are. Do they attach somewhere to really keep the cables out of the way?
No the cables are too thick to fit into the clip together. But you could always route the cables parallel to each other and attach each cable individually.

Here's how they look side by side
Image

The cable can be attached to the underside of the drivers side dash. See the following routing I did from the OBDII outlet to the center console where I keep the ELM327 in a cup holder.
Image

The cable can be inserted and removed from the clip multiple times. So if you are concerned the dealer service dept will question having a cable plugged into the ODB Port, the cable, ELM327 and Droid can all be removed from the car in 30 seconds and they are none the wiser.
--
JP White
http://jpwhitenissanleaf.com
2011 Blue SL-e, 132,400 Miles.
Lost 5 Capacity bars
7/18/13 (29,206), 8/25/14 (51,728), 7/12/15 (71.108), 5/12/16 (88,362), 10/17/16 (96,532)
New Battery 12/3/16 (98,956)
2018 Model 3 20,000 Miles.

Stoaty
Posts: 4490
Joined: Fri Jun 18, 2010 9:50 pm
Delivery Date: 12 Jun 2011
Leaf Number: 3871
Location: West Los Angeles

Re: Using clone ELM327 Bluetooth OBDII adapter with Leaf

Mon May 13, 2013 5:01 pm

JPWhite wrote:The cable can be inserted and removed from the clip multiple times. So if you are concerned the dealer service dept will question having a cable plugged into the ODB Port, the cable, ELM327 and Droid can all be removed from the car in 30 seconds and they are none the wiser.
Looks very good. I think I will add the link and the photos to the Wiki when I have time for those of us who don't like to re-invent the wheel. :D
2011 Leaf with 62,000 miles given to Nephew
2013 Tesla Model S85 with 251 miles rated range at full charge
Leaf Spy Manual
Battery Aging Model Spreadsheet

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