planet4ever
Well-known member
I do, but only on Firefox. It also fails with Internet Explorer, Google Chrome, and Safari (all under Windows 7). Beside, PING from a DOS window can't resolve the URL, either.turbo2ltr said:
Ray
LEAF CANbus decoding. (Open discussion)
- Thread starter Coffee_Slurry
- Start date
Help Support My Nissan Leaf Forum:
Ray
davewill
Well-known member
Works fine for me. I'd complain to the ISP, or use an alternate DNS server.planet4ever said:
Coffee_Slurry
Well-known member
Looks like it's my fault. I have a lame DNS delegation.
Thanks for the heads-up.
Anyone know a cheap DNS seconding service?
Thanks for the heads-up.
Anyone know a cheap DNS seconding service?
turbo2ltr
Well-known member
http://www.opendns.com/
garygid
Well-known member
Today I added a "Dashboard" to show "instruments" (just values and progress-bars for now) that display "decoded" CAN data.
Going through the 6 million record EV-CAN log file in a minute or so, I have a much-faster-than-real-time "playback" of a 6-hour charging session, from 2 bars to 12 bars.
From the 0x5BC message on the EV-CAN buss, I show SOC (raw, and percentage), original e-fuel bars and capacity bars (as bars and decimal), and the "remaining charging times" (low 4 bits of D7, and D8) for the four 240v/120v, 80%/100% conditions (as h:mm).
(Thanks "turbo" for the hints!)
At the moment the e-fuel bar changes (a bar On or Off), the dashboard displays that moment's SOC (raw and percentage).
So, this is my start of displaying the CAN-info, and I will try to get a slightly cleaned up version of this program (and the test EV-CAN log file, old firmware) posted (zipped) on my web site tomorrow for others to use/test/view.
(should run on XP, Vista, and Win7)
Going through the 6 million record EV-CAN log file in a minute or so, I have a much-faster-than-real-time "playback" of a 6-hour charging session, from 2 bars to 12 bars.
From the 0x5BC message on the EV-CAN buss, I show SOC (raw, and percentage), original e-fuel bars and capacity bars (as bars and decimal), and the "remaining charging times" (low 4 bits of D7, and D8) for the four 240v/120v, 80%/100% conditions (as h:mm).
(Thanks "turbo" for the hints!)
At the moment the e-fuel bar changes (a bar On or Off), the dashboard displays that moment's SOC (raw and percentage).
So, this is my start of displaying the CAN-info, and I will try to get a slightly cleaned up version of this program (and the test EV-CAN log file, old firmware) posted (zipped) on my web site tomorrow for others to use/test/view.
(should run on XP, Vista, and Win7)
garygid
Well-known member
We are using the $55 AVR-CAN Development Board(s), which use the Atmel AT90CAN128-16 mHz CAN/Processor chip to decode the CAN Messages.
Currently, using our firmware for the Atmel uP, a checksum and ten bytes of data come out of the board, and appear at virtual Comm Ports in the PC.
My CAN-Do program can connect to this live data stream, log it, and display the "dashboard"
We should be able to demo the system at the next SoCal Gathering, on 11 June 2011 at Cerritos Nissan.
With 3 of these boards, one can monitor/read/log the car's three CAN busses (EV, Car, AV). Later we will find a way to monitor the QC-CAN buss as well.
With a fully populated and wired Pass-through CAN connector and a molded-on "T" cable (which we wire to three DB-9 connectors, one for each of the 3 development boards), a compiler, some source code, and a uP loader, we have a 3-Buss interface system for about $200.
Then, three RS232 (115 k-baud) to USB "adapters" (less than $5 each), a Windows laptop (try sales at Fry's Electronics, or TigerDirect.com), and some VB6 for Windows software (my CAN-D0 program?), one has a real-time "dashboard" display, a CAN-message logger, and a CAN "analysis" tool, all in one program that WE can modify as needed.
Currently, using our firmware for the Atmel uP, a checksum and ten bytes of data come out of the board, and appear at virtual Comm Ports in the PC.
My CAN-Do program can connect to this live data stream, log it, and display the "dashboard"
We should be able to demo the system at the next SoCal Gathering, on 11 June 2011 at Cerritos Nissan.
With 3 of these boards, one can monitor/read/log the car's three CAN busses (EV, Car, AV). Later we will find a way to monitor the QC-CAN buss as well.
With a fully populated and wired Pass-through CAN connector and a molded-on "T" cable (which we wire to three DB-9 connectors, one for each of the 3 development boards), a compiler, some source code, and a uP loader, we have a 3-Buss interface system for about $200.
Then, three RS232 (115 k-baud) to USB "adapters" (less than $5 each), a Windows laptop (try sales at Fry's Electronics, or TigerDirect.com), and some VB6 for Windows software (my CAN-D0 program?), one has a real-time "dashboard" display, a CAN-message logger, and a CAN "analysis" tool, all in one program that WE can modify as needed.
garygid
Well-known member
N-Channel CAN buss Monitor System (N = 1, 2, 3, or 4)
1. I intend to order some AVR-CAN boards tomorrow, about $60 each, you need N of them
2. the "ODB2" connector, pass through, with molded cable and all pins wired (about $25). You need just one.
3. RS232-to-USB adapters, 115k max speed, with drivers on disk. You need N of them.
4. about $5 to $10 for shipping the package insured, if needed.
For select people (perhaps friendly, nearby, and with cash) I will consider ordering more than I need.
1. I intend to order some AVR-CAN boards tomorrow, about $60 each, you need N of them
2. the "ODB2" connector, pass through, with molded cable and all pins wired (about $25). You need just one.
3. RS232-to-USB adapters, 115k max speed, with drivers on disk. You need N of them.
4. about $5 to $10 for shipping the package insured, if needed.
For select people (perhaps friendly, nearby, and with cash) I will consider ordering more than I need.
evnow
Well-known member
One other "option" is to use bluetooth. There are BT obd devices - don't know about just can.
With BD we can use either laptop or smartphone to monitor. May be that is possible with even USB ...
With BD we can use either laptop or smartphone to monitor. May be that is possible with even USB ...
garygid
Well-known member
With 3 bluetooth devices to monitor the LEAF's 3 CAN busses simultaneously, the interference might be a problem.
Also, the BT might not be fast enough for reliable data transfer at the LEAF's 500k-bit CAN bus rate.
And, many are designed strictly for ODB2 messages, not CAN, I believe.
But, if you find something that works, please let us know.
Also, the BT might not be fast enough for reliable data transfer at the LEAF's 500k-bit CAN bus rate.
And, many are designed strictly for ODB2 messages, not CAN, I believe.
But, if you find something that works, please let us know.
evnow
Well-known member
garygid said:
Do we really need all 3 busses ? If the interest is mainly in SOC - scanning the right bus should suffice, right ?
garygid
Well-known member
Is anybody interested in trying my CAN-Do VB6 for Windows "work-in-progress" program?
If you are, then I will attempt to get it posted today.
You can test to see if a typical VB6 program will run on your Win OS by downloading, unzipping, and trying to run my Sudoku puzzle program.
The "sample" data file with my CAN-Do program is a log of the EV-CAN buss during a 6-hour L2 charge.
Running CAN-Do, you can actually watch the "bars" and SOC climb during the time-lapse (high speed) playback.
If you are, then I will attempt to get it posted today.
You can test to see if a typical VB6 program will run on your Win OS by downloading, unzipping, and trying to run my Sudoku puzzle program.
The "sample" data file with my CAN-Do program is a log of the EV-CAN buss during a 6-hour L2 charge.
Running CAN-Do, you can actually watch the "bars" and SOC climb during the time-lapse (high speed) playback.
garygid
Well-known member
Yes, for SOC, it appears that monitoring the EV-CAN buss is sufficient.
Adding a small display to the Atmel development board and displaying the SOC should be relatively easy.
The three (should be "easy") mods to the present firmware (we have the source, a compiler, and a loader) are:
1. watch the messages for the "5BC" message,
2. extract the SOC part, and
3. send the needed characters to the display.
Who wants to select a suitable easy-to-read display?
Adding a small display to the Atmel development board and displaying the SOC should be relatively easy.
The three (should be "easy") mods to the present firmware (we have the source, a compiler, and a loader) are:
1. watch the messages for the "5BC" message,
2. extract the SOC part, and
3. send the needed characters to the display.
Who wants to select a suitable easy-to-read display?
evnow
Well-known member
garygid said:
4 KWh was "battery low". I don't think we actually have 4 kwh of usable energy when we hit battery low - I got about 18 miles. So, probably 3 to 3.5 KWh.
The turtle mode range seems to be variable - but none have reported more than 2 miles, AFAIK.
Now, Battery Low and the last bar disappearing are close to each other. Also they may change a bit depending on whether you stop the car around that time. I got battery low just before I switched off the car. 10 minutes later when I switched it back on, the last bar was gone. After that drove for 18 miles before getting turtle - all the while with no bars showing.
That means, we can think of Leaf as having 14, if not 14.5, bars. Since the usable capacity seems to be about 21 to 22 kwh, this mean each bar represents between 1.45 to 1.57 kwh. Let us say 1.5 kwh. Seems to track with what I was getting - about 7 miles a bar when the going was around 5 m/kwh.
garygid
Well-known member
I do not like driving with NO INDICATION of the "remaining" charge, so I have not had the firmware uodate done (yet). I guess that is what Nissan was counting on, to keep some "sick" cars away from their "lacking" low end.
However, it means that the "healthy" cars either give up 15 "miles of range" (substantial usable charge), OR drive "blind".
I guess a reasonably good SOC gauge will be useful to many, but it STILL CAN BE DECEPTIVE (as in the "sick" cars) if the low-end energy estimate is too optimistic, and disappears WAY TOO QUICKLY.
However, it means that the "healthy" cars either give up 15 "miles of range" (substantial usable charge), OR drive "blind".
I guess a reasonably good SOC gauge will be useful to many, but it STILL CAN BE DECEPTIVE (as in the "sick" cars) if the low-end energy estimate is too optimistic, and disappears WAY TOO QUICKLY.
Herm
Well-known member
garygid said:
By sick you mean some cars that have a cell or two that are substantially lower capacity.. and when in turtle mode will force the BMS to do an emergency abrupt shutdown?
I would suspect if that happened it would light up the dash to go visit the dealer. A properly designed system would never let you get that low.
evnow
Well-known member
garygid said:
There will be some variability - there is no free lunch here - this is not like Lake Wobegon where all the cars are above average ;-) I prefer that no one gets stranded, since that will hurt EV in general.
planet4ever
Well-known member
That was also my experience last Friday. I got battery low, then powered off half a mile later. When I powered back up a couple of minutes later the last bar was gone. Today I also got battery low, but three miles from home. When I got home I still had the last bar showing! That was about 1½ freeway miles and 1½ miles in town (40 mph to 25 mph with three stops at lights or stop sign).evnow said:
Ray
planet4ever
Well-known member
It looks like you fixed it, or something did. I can now see your images.GroundLoop said:
Ray
garygid
Well-known member
I finally got my CAN-Do program (VB6 for Windows) on-line.
I ran an earlier version on XP Home, and this v1.2.3 on Vista-32 bit.
Get the program, and a test CAN-Log file from:
http://www.wwwsite.com/puzzles/cando
Download the zipped "exe" file, unzip into any folder, and try to run the program.
If that works, download the large (19 MB zipped) EV-CAN Log file.
It is usually most convenient to unzip the CAN-Log file into the same folder.
Run the progam, BROWSE to open the CAN-Log file, and click the "Read Bin" Button.
Enjoy the (speeded up) 6-hour "playback", which takes about 30 seconds here.
Cheers, GaryG
I ran an earlier version on XP Home, and this v1.2.3 on Vista-32 bit.
Get the program, and a test CAN-Log file from:
http://www.wwwsite.com/puzzles/cando
Download the zipped "exe" file, unzip into any folder, and try to run the program.
If that works, download the large (19 MB zipped) EV-CAN Log file.
It is usually most convenient to unzip the CAN-Log file into the same folder.
Run the progam, BROWSE to open the CAN-Log file, and click the "Read Bin" Button.
Enjoy the (speeded up) 6-hour "playback", which takes about 30 seconds here.
Cheers, GaryG
garygid
Well-known member
Problem: I parked, and now an e-fuel Bar, there before, is now gone:
A given bar will appear and disappear at a different SOC
if the battery pack is charging or discharging.
Think of it this way:
1. When discharging, the bar goes OFF when it is "empty".
If ON, a bar stays ON, no matter if that bar is 25% or 75% full.
2. When charging, an OFF bar does not go ON until it is about half full.
3. When (re) starting the car, the bars "fill" (like during charging), and
a 75% full bar will appear, but a 25% full bar will not.
At least that's my theory.
A given bar will appear and disappear at a different SOC
if the battery pack is charging or discharging.
Think of it this way:
1. When discharging, the bar goes OFF when it is "empty".
If ON, a bar stays ON, no matter if that bar is 25% or 75% full.
2. When charging, an OFF bar does not go ON until it is about half full.
3. When (re) starting the car, the bars "fill" (like during charging), and
a 75% full bar will appear, but a 25% full bar will not.
At least that's my theory.
