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nyet
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« Reply #60 on: October 18, 2019, 01:18:09 AM »
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Ok thanks. Can you tell me why I have intervention? Is it connected to load? I've read again PID control theory and with D I can compensate the overshoots or accelerate the system. What I saw at logs that the rlmax is lower than the actual load.
Stop calling it intervention. |
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totti
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« Reply #61 on: October 18, 2019, 01:46:34 AM »
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Sorry I am not expert, but you are asking 12 deg ingition at spool. That valuese schould be lower. That is only a hint
But it has nothing to do with your PID setings, and WGDC drift. And i don't know what to do there
That is a preaty good K03s,it can archive 185 gs
Ok I will try lower values at ignition. Thanks a lot for help to understand it. Under 3000rpm it is slow a little bit, but I'm satisfied with it. I saw 190gs from k03s. |
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totti
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« Reply #62 on: October 18, 2019, 01:48:25 AM »
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Stop calling it intervention.
Ok sorry. |
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totti
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« Reply #63 on: October 19, 2019, 11:10:07 AM »
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Changed the ignition tables. I've 2 logs with the second I dont have retard but the reaction is similar.
What could be the problem?
Thanks
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nyet
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« Reply #64 on: October 19, 2019, 12:18:01 PM »
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What does ignition have to do with boost?
I don't understand your question.
Also, you probably don't want negative timing.
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totti
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« Reply #65 on: October 19, 2019, 12:41:51 PM »
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What does ignition have to do with boost?
I don't understand your question.
Also, you probably don't want negative timing.
BlackT said that the previous log there were retards at 3000rpm where was the boost issue and 12deg was little bit too much at this section. You mentioned the D part. I have not changed that this is the original value. |
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BlackT
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« Reply #66 on: October 19, 2019, 01:06:07 PM »
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I sad that is yust a hint, and I have said it has nothing to do with WGDC and PID control
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totti
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« Reply #67 on: October 19, 2019, 01:36:07 PM »
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I sad that is yust a hint, and I have said it has nothing to do with WGDC and PID control
Thanks for the hint. Now there is no retard but something controls WGDC at 3000rpm. |
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nyet
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« Reply #68 on: October 19, 2019, 02:41:52 PM »
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Thanks for the hint. Now there is no retard but something controls WGDC at 3000rpm.
Yes, that is the PID. Your IMX is too low and Q2 is reacting to the slope of lde. Question: what is de/dt (where e is process error aka lde)? If you can't answer that, we're in trouble. |
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totti
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« Reply #69 on: October 19, 2019, 03:20:19 PM »
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Yes, that is the PID. Your IMX is too low and Q2 is reacting to the slope of lde.
Question: what is de/dt (where e is process error aka lde)?
If you can't answer that, we're in trouble.
If I know well that is how fast e is changing in time |
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nyet
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« Reply #70 on: October 19, 2019, 03:26:03 PM »
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If I know well that is how fast e is changing in time
Exactly. So if the slope of lde is very negative, you'll see a large cut in WGDC. What is the slope of lde when you see WGDC drop? |
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totti
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« Reply #71 on: October 19, 2019, 03:50:19 PM »
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Exactly. So if the slope of lde is very negative, you'll see a large cut in WGDC.
What is the slope of lde when you see WGDC drop?
lde=("actual absolute pressure" - "requested pressure") From the log the starting point of cut at 5.3s. The requested boost is constant(2300). lde at 5.1s 2139-2300=-161 lde at 5.2s 2194-2300=-106 lde at 5.3s 2221-2300=-79 |
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totti
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« Reply #72 on: October 20, 2019, 03:49:33 AM »
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I've changed kfldimx a little. Lets see what will happen
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totti
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« Reply #73 on: October 20, 2019, 06:02:30 AM »
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It seems it helped to the cut. The strange thing is that the maf goes a little bit lower.
The first 2 logs is with the yesterday software. The last 2 is with the modifed kfldimx ans I set kfldrl from 100 to 95 and LDRQ0s from 2.1 to 2.
I've add p i d parameters to the log. Please comment if you find anything wrong.
Thanks
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nyet
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« Reply #74 on: October 20, 2019, 11:25:27 AM »
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It seems it helped to the cut. The strange thing is that the maf goes a little bit lower.
The first 2 logs is with the yesterday software. The last 2 is with the modifed kfldimx ans I set kfldrl from 100 to 95 and LDRQ0s from 2.1 to 2.
I've add p i d parameters to the log. Please comment if you find anything wrong.
Thanks
That IMX still dips too low. |
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