Release Candidate 8, Jan 06, 2012

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February 5th, 2012
swingtan

Interesting.....

I get EQ and Lambda data, just no AFR. I did the display test before posting to confirm something was there ( V2 configured to display AFR and EQ Ratio ). The AFR data remained at "0" while the EQ changed value. If I pull apart a log file, I see the following.....

Quote:

EXT.WO2ST1=42
EXT.WO2LAM1=44
EXT.WO2AFR1=46
EXT.WO2EQR1=48
EXT.WO2ST2=50
EXT.WO2LAM2=52
EXT.WO2AFR2=54
EXT.WO2EQR2=56

and if I look at a few frames....

Quote:

00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66

37 35 e4 21 52 03 86 51 88 75 71 87 88 00 8c 00 8e 80 00 00 00 11 0e 08 45 01 f9 05 39 1b 94 af 0e 42 fb 73 55 02 f5 35 fc 89 00 01 03 f1 00 00 03 df 00 00 06 a5 09 c4 02 4b 00 00 00 00 89 10 81 01
37 35 e4 21 52 03 86 51 88 75 71 87 88 00 89 00 8b 80 00 00 00 11 02 08 33 01 f7 05 41 1b 9b b6 0c 42 fb 73 55 02 f5 36 2e 8a 00 01 03 f1 00 00 03 df 00 00 06 a5 09 c4 02 4b 00 00 00 00 ae 10 81 01
37 35 e4 21 52 03 86 51 8d 75 71 87 88 00 8a 00 8c 80 00 00 00 11 0e 08 45 01 f7 05 37 1b 8e b8 16 42 fb 73 56 02 f5 36 15 8a 00 01 03 e2 00 00 03 ee 00 00 06 a5 09 c4 02 4b 00 00 00 00 d4 10 81 01
37 35 e4 21 52 03 86 51 8d 75 71 87 88 00 8d 00 8e 80 00 00 00 11 15 08 50 01 f5 05 36 1b 83 bb 12 42 fb 73 56 02 f5 36 15 89 00 01 03 e2 00 00 03 ee 00 00 06 a5 09 c4 02 4b 00 00 00 00 f9 10 81 01
37 35 e4 21 52 03 86 51 8d 75 71 87 89 00 8c 00 90 80 00 00 00 11 02 08 33 01 f7 05 32 1b 92 bb 18 42 fb 73 56 02 f5 36 47 8a 00 01 03 e2 00 00 03 ee 00 00 06 a5 09 c4 02 4b 00 00 00 00 1f 11 81 01
37 35 e4 21 52 03 86 51 8d 75 71 87 89 00 8c 00 8f 80 00 00 00 11 15 08 50 01 f9 05 41 1b 94 bd 21 42 fb 73 53 02 f5 36 15 8a 00 01 03 de 00 00 03 f2 00 00 06 a5 09 c4 02 4b 00 00 00 00 45 11 81 01

I'll go get a trace for you though.

Simon
February 5th, 2012
swingtan

2 Attachment(s)

here you go.....

Attachment 12640

And an image of the TE display with the V2 display....

Attachment 12639

Simon.
February 5th, 2012
Blacky

1 Attachment(s)

Ahh, now I see the screen shot I can see what the problem is.
One of the updates that went through recently was to allow you to specify the stoichiometry for the fuel that is in use.
Yours is probably set at zero which means the conversion from lambda (or EQR) to AFR is failing.

Go into settings on the V2 device and set stoich to the value you need/want it at.
Or change it in the Device settings of the V8 software.
It is supposed to default to 14.7 if the user does not set it - I'll need to figure out why its not doing that.
Attachment 12641

Quote:

Originally Posted by swingtan

here you go.....

Attachment 12640

And an image of the TE display with the V2 display....

Attachment 12639

Simon.
February 5th, 2012
swingtan

Ahh, that sounds like what's happening. I was really confused that I was getting EQ and Lambda but not AFR. I'll give it a test and report back, thanks again.

Simon
February 5th, 2012
swingtan

That was it! I must have cleared it by accident when reapplying all the settings.

Simon.
February 6th, 2012
Blacky

Quote:

Originally Posted by swingtan

That was it! I must have cleared it by accident when reapplying all the settings.

Simon.

No it wasn't something you did. The config value will always be zero until you explicitly go in and set it for the first time.
The firmware was meant to cater for that by checking for zero and defaulting to 14.7
The default was not being handled correctly for some WO2 controllers.

Basically each controller type has a separate function that computes the lambda value from the raw serial data and also converts it to AFR.
The code was reading the config value and initializing it to 14.7 if it was zero.
However in some of the routines the stoich value was being re-read from the original config value (and getting set back to zero) instead of using the default that had already been set to 14.7.

Regards
Paul
February 6th, 2012
swingtan

Ahh, OK then. All fixed now though, I wish I got service like this from the vendors at work! It took us 2 months to get a patch for an application that was leaking 5MB of memory per hour.

Simon.
February 6th, 2012
ScarabEpic22

Ugh, that doesn't seem like that bad of a memory leak...but after a few days it turns into a LOT!

Glad you got this figured out guys, I was confused when I read it yesterday, but with my Innovate LC1 the controller handles the stoich programming.
February 6th, 2012
Blacky

Quote:

Originally Posted by ScarabEpic22

Glad you got this figured out guys, I was confused when I read it yesterday, but with my Innovate LC1 the controller handles the stoich programming.

Correct, I should have added that the stoich setting is not available in FlashScan for Innovate (and only Innovate) because Innovate already support a stoich setting in their wide band controllers - so FlashScan uses that setting.
Regards
Paul
February 6th, 2012
ScarabEpic22

Quote:

Originally Posted by Blacky

Correct, I should have added that the stoich setting is not available in FlashScan for Innovate (and only Innovate) because Innovate already support a stoich setting in their wide band controllers - so FlashScan uses that setting.
Regards
Paul

Its in there when you select Innovate! I completely ignored it because there wasnt an option, honestly I had no idea this was implemented until Simon mentioned it because I only have 1 WB.

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