Warm Up Enrichment - self tune

[Bainzy]

Had another go with it today, idle was pretty consistent now at 13.5-15 so getting a lot better, issue of murdering settings cropped up in another way though. At one point I turned the controller off and on, and when it reloaded showing the difference report, it wanted to murder the settings to make it a flat line all across the board. Hope this info helps Phil.

I think my tune going lean towards the end yesterday was because I've never tuned the VE map with WUE at zero when warmed up, so it needs a proper tune with WUE off.

If the VE map is out at 88c because WUE added an extra 25%, can I just multiply all the numbers in the VE table by 1.25 to get the correct setting when the car is at temp, with WUE off? Seems a shame to waste all the effort I've done tuning so far.

[seishuku]

I see the trouble there... ms1ExtraWueAnalyzeMaps.ecu vs ms1ExtraWueAnalyzeMap.ecu
add the s to the one in the inc dir and it will work. I'll have an update out shortly.

Ah, I see that... I kept looking at the error and back at the file list and kept thinking, THEY'RE RIGHT THERE! lol

[seishuku]

Ok, one more question:
It seems to think I'm in MAP decel enrich all the time, I tried to comment out the map accel/decel filters in the WUE analyze ini for MS1Extra, but it's still trying to filter it and not doing any WUE work.
I don't use MAP for AE, it's all TPS.

[jmmorgan]

When I saw this WUE autotune, I had to give it a try. I finishing up switching my MR2 from a stock computer with a bunch computer add on (to get it to run with bigger injector) to MS2. I have only warmed up the car twice to adjust the idle and I did not really do anything with the WUE. So I thought this would be a good trial. I used it with the stock defaults. I have attached my tune and jpd picture of it. I was able to make the log file smaller by deleting every 2/4 record.
I was not surprise to see it initial pull fuel as the cell (60/900=52) it was reading from was not tuned for idle and was rich. I was surprise to see it go lean at the end after it had warmed up and stall. I just thought that my idle cell (50/900=33) was too lean. However, after I drove the car and readjust the idle it ended at the same value.
The WUE autotune seems to work very well. Thanks for the great enhancement.
John

[grom_e30]

Is there any key to get this working it seems to keep wanting to change everything to 100% got it to behave its self once and it showed me that I can have my warm up end by about 35c as opposed to 71c without any bad results but now seems to want to drop everything to 100%

[LT401Vette]

Is there any key to get this working it seems to keep wanting to change everything to 100% got it to behave its self once and it showed me that I can have my warm up end by about 35c as opposed to 71c without any bad results but now seems to want to drop everything to 100%

What are you running it on? MS1, MS2 or MS3?

I saw above that the post and it appeared that release is doing that if "Update Controller" is checked. Try unchecking that.
I "think" I will have another release out tomorrow and that is resolved.

[grom_e30]

Using ms3 I'll give it a go with that turned off cheers

[grom_e30]

Yeah I'd say that the ticket on it left it in checked and seemed to work in a correct manner

[HidRo]

Quick question on this.
What exactly is the High Throttle and what does it tune/strip from the equation?
Is the WUE self tune aware of the accel and deccel stuff like the VEAL does? When you are in the overrun, etc?

[LT401Vette]

Quick question on this.
What exactly is the High Throttle and what does it tune/strip from the equation?
Is the WUE self tune aware of the accel and deccel stuff like the VEAL does? When you are in the overrun, etc?

The High throttle is a filter, it will filter any data over that throttle position. I think this is going to change.
The WUE Analyze does filter all the standard conditions, AE, DE, etc... However, I have found that is not the best way to operate for WUE Analyze. You really should keep it at a steady state during warmup.

The trouble with the filtering is that there is a rather long residual after effect when you change the conditions.

For example if you have it idling and are getting a nice steady AFR reading, then rev it a couple times, it is easy enough to filter the AE during the rev or even the rev itself. However, it seems that when it settles back at idle the AFR will read 0.5-0.75:1 leaner for quite some time. Best guess at this point is that this is related to WB sensor itself not being very warmed up.

[HidRo]

I have a lot of issues with the idle, and just bliping the throttle. At cold, it will idle at 11afr, and if I rev it slightly, it will dip to 9afr, and then back up. So I was thinking of tuning the WUE while driving, to take the idling out of the equation.
I'll use the custom filter I have for VEAL ((tpsDOT < -30) || (tpsDOT > 30) || (engine & 64) || (engine & 128) ) to try to make things workable.

Edit: Also, idle is super rich, and cruising is on the lean side. So can't tune WUE with idle only

Thanks!

[wmax351]

I have a lot of issues with the idle, and just bliping the throttle. At cold, it will idle at 11afr, and if I rev it slightly, it will dip to 9afr, and then back up. So I was thinking of tuning the WUE while driving, to take the idling out of the equation.
I'll use the custom filter I have for VEAL ((tpsDOT < -30) || (tpsDOT > 30) || (engine & 64) || (engine & 128) ) to try to make things workable.

Edit: Also, idle is super rich, and cruising is on the lean side. So can't tune WUE with idle only

Thanks!

Should be fine with a higher rpm, no load. That is what Phil suggested with my bike. Seems to work so far.

[HidRo]

You mean like, letting it "idle" at 3k for the entire warmup process?

[myk777]

I had a go with this today, here are the results, I never touched the throttle all idle. I didn't have it update the controller yet. It seemed to hang up for a bit at the beginning, not sure what happened but by the time it got to ~75deg it seemed to pick up again, I think you can see there is some data missing in the right window between the start temp and 75deg. How it handled the extended prediction seemed a bit weird too. Overall it looked like it was doing what it was supposed to though once it got above 75deg. My msq and a datalog are available in the first page of this thread if needed.

WUE_Analyze1.jpg

Mike

[subwoofer]

Just wanted to let you know, I tried going back to the pre-WUE tune today, just to see how far off the old tune was. Immediately back to it good old self - coughs, sputters, stalls, hunting idle, the lot. I guess the WUE analyzer works...

Hoping to install the MAF during the weekend, will have to run it again after that, methinks.

[LT401Vette]

myk777, somehow I missed this post, I was traveling that week.

From yur picture I think I can see what happened to some degree...
The Extended Prediction went wild.

In the AFR Error plot it appears there was some very high AFR readings initially, not high enough to warrant 220% WUE, but it looks like that is all the data that came through, then filtering came on... I think that vertical line of bad data is what "Should" have been filtered, not the next several degrees. That line may be related to the bug that was in the Dead O2 filter. Let me know if that line is gone now in 2.1.11

[myk777]

Thanks for getting back to me on this Phil, that makes sense. I'll give it another go in the next couple of days and see how it behaves with 2.2.11 (assuming you meant that version not 2.1.11)

Mike

[piledriver]

Perhaps WUE needs a smallish AFR target table vs temp?
It seems to be working well for me otherwise.
(The SLC-OEM fires up the sensor pretty quick)

10.5:1 from cold is a pretty typical startup/initial warmup AFR used by OEMS, the progressively leans out to normal AFR.

[subwoofer]

It does already, under advanced settings in WUE Analyzer. I don't close the loop until 80-ish (F), so the setting in WUEA effectively becomes the AFR target.

[LT401Vette]

Do you think that might be clearer than the "AFR Target Temperature Adjustment" Curve in the advanced tab?

That is essentially an AFR add / subtract curve.