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nyet
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« Reply #90 on: October 23, 2019, 10:32:54 AM »
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Yes, I was directly referring to this when I mentioned both feed forward and the purpose of the DRL table above. It is also linked in the tuning page (i think? If not i should add it). |
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totti
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« Reply #91 on: October 23, 2019, 11:28:34 AM »
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Yes, I was directly referring to this when I mentioned both feed forward and the purpose of the DRL table above. It is also linked in the tuning page (i think? If not i should add it).
I've read tuning wiki a several times and every time I found new useful sections. Thank you to update it all the time. |
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totti
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« Reply #92 on: November 09, 2019, 09:24:24 AM »
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This kfldimx has big leak but it is working very well. The turbo(k03s) is same as mine, and also 386cc injectors.
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totti
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« Reply #93 on: November 09, 2019, 09:27:27 AM »
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This is mine log and dyno picture
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totti
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« Reply #94 on: November 11, 2019, 05:53:12 AM »
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Hi,
How can I handle the spool of the turbo? D is not enough to do that. So when the system reaches the target ->goes to steady state and it will run from IMAX. SO If I change Imax it wont be enought to stay at steady state. Should I change KFLDRL at the critical sections between 3000 and 4000?
Thanks
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nyet
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« Reply #95 on: November 11, 2019, 08:28:14 AM »
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What happens if you try more Q2?
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totti
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« Reply #96 on: November 11, 2019, 08:38:03 AM »
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What happens if you try more Q2?
I don't know. Currently 25% added to the default values in 100 and 200mbar lde. I don't want to go into instable. Currently I think about change KFLDRL at 80% which is 1450mbar at the current configuration. I won't request that pressure so I know that if the input value is around 80 percent-> the turbo is in spooling and I can open wg a little bit more. |
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nyet
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« Reply #97 on: November 11, 2019, 08:40:50 AM »
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I don't know. Currently 25% added to the default values in 100 and 200mbar lde. I don't want to go into instable. Currently I think about change KFLDRL at 80% which is 1450mbar at the current configuration. I won't request that pressure so I know that if the input value is around 80 percent-> the turbo is in spooling and I can open wg a little bit more.
In my experience, pretty large changes in Q2 are required to get it to do anything, especially in the spool/steady state transition region. Also keep in mind that b_lddy cuts Q2 out pretty aggressively as lde approaches 0. |
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totti
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« Reply #98 on: November 11, 2019, 08:48:12 AM »
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In my experience, pretty large changes in Q2 are required to get it to do anything, especially in the spool/steady state transition region. Also keep in mind that b_lddy cuts Q2 out pretty aggressively as lde approaches 0.
Yes the I found the cut out. After reach the target Q2 is zero immediately. I will check more Q2 at 3000-3500 rpm where is always the overshoot in WOT. At the dyno day that was a car with me7.5 ECU and there the required boost was maximum(2555mbar) in WOT. I don't know how does the pid working at his situation, but I think they just programmed a curve with imx and drl tables and depends on the world sometimes it generates more boost sometime a little bit lower. |
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totti
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« Reply #99 on: November 16, 2019, 09:12:13 AM »
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Hi,
I've added more Q2 to PID. I've still overboost... Should I add more q2? Or maybe my n75 valve is not working properly?
The first log contains different starting rpms
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totti
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« Reply #100 on: November 16, 2019, 12:35:40 PM »
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Other question. How to set UMDYLDR? I read at the wiki that set it to 5% of the maximum desired value. SO If I would like 1370mbar to max set it to ~ 68?
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nyet
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« Reply #101 on: November 16, 2019, 04:18:45 PM »
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Add more Q2. Also log I result.
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totti
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« Reply #102 on: November 17, 2019, 02:25:18 AM »
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Add more Q2. Also log I result.
How much? 10% at 3000-4000rpm? |
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nyet
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« Reply #103 on: November 17, 2019, 09:17:56 AM »
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How much? 10% at 3000-4000rpm?
more, 50% You want to see a dip in WGDC just before lde hits UMDLYDR To do that, it will have to overwhelm the fact that P is still pretty high, since max D (well, most negative) will be while P is still influenced by lde>UMDLYDR |
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« Last Edit: November 17, 2019, 09:19:31 AM by nyet »
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totti
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« Reply #104 on: November 17, 2019, 01:57:02 PM »
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more, 50%
You want to see a dip in WGDC just before lde hits UMDLYDR
To do that, it will have to overwhelm the fact that P is still pretty high, since max D (well, most negative) will be while P is still influenced by lde>UMDLYDR
Thanks. Now I've added 80% to the original(stock) values. Can you tell me how does B_lddy work? At my software UMDYLDR is 100mbar. Sometime from the log I can see that the D part is working but lde is lower than 100mbar. |
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