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psi based boost control

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Old Jul 23, 2010 | 01:17 PM
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From: Hayward
Originally Posted by Clipse3GT
Make the (20 & 17.5 areas of the boost correction table 0)
Problem with that is if the car makes a huge correction either way, if it stays in that percentage area it will never add or subtract back the WGDC until it's out of that percentage area.

- Bryan
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Old Jul 23, 2010 | 07:00 PM
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very interested to see how this works, and to see the pros and cons of this.
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Old Jul 25, 2010 | 07:15 PM
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Hey guys,

I feel like a complete dunce, Please help me out.

My Rom ID is 52680022 and it inherits 52680015.

I've tried placing the code into 52680022 and I couldn't see any new tables and nothing named "direct boost"

I also tried placing it 52680015 and evo10base. No matter where I place this code, I cannot see the new tables.

I receive no errors and nothing abnormal, I just simply do not see the new tables anywhere.

What am I doing wrong? Is there some special method for Win 7 based laptops?

Thanks for the help.
Last edited by tsitalon1; Jul 25, 2010 at 07:17 PM.
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Old Jul 27, 2010 | 05:53 AM
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Hey guys,

Thanks for all the help, I believe I have everything working, just gotta fine tune now.

I want to log boost error. I understand that it is 2byte and the address is 0x80858E, but what is the formula?
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Old Jul 27, 2010 | 06:46 AM
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x








(I can't post just that)
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Old Jul 27, 2010 | 06:56 AM
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HAHA...so simple.

Thanks Golden! You always seem very helpful, I appreciate it!
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Old Jul 30, 2010 | 12:41 PM
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D, I know it's been asked previously but no table has been posted for it yet.

5269xxxx would be appreciated.
They don't match with the 5268xxxx and I've tried all the other without success.



EDIT: Actually I found them I think 40 offset up
Could you please confirm Tephra those are correct.
Until Tephra confirm don't use what's listed below, if you brick you're ECU it's your own fault.

52690019
Code:
<scaling name="Throttle_Main - Stored Minimum Throttle %" units="%" toexpr="(x+(90/4))*100/255" frexpr="x*255/100-(90/4)" format="%.1f" min="0" max="100" inc="2" storagetype="uint16" endian="big"/>
<scaling name="BoostErrorPsi" units="psi" toexpr="(x-128)*0.19347/4" frexpr="(x*4/0.19347)+128" format="%.1f" min="-6.1" max="6.1" inc="0.1" storagetype="uint16" endian="big"/>
<scaling name="OffsetWGDC" units="WGDC Change" toexpr="(x-128)/2" frexpr="x*2+128" format="%.1f" min="-64" max="63.5" inc="0.5" storagetype="uint8" endian="big"/>
<scaling name="psia8" units="psia" toexpr="x*0.19347" frexpr="x/0.19347" format="%.1f" min="0" max="49.5" inc="0.1" storagetype="uint8" endian="big"/>
<scaling name="psia16" units="psia" toexpr="x*0.19347" frexpr="x/0.19347" format="%.1f" min="0" max="49.5" inc="0.1" storagetype="uint16" endian="big"/>

<table name="Atmospheric Boost" category="Direct Boost" address="53484" type="1D" scaling="psia16"/>
<table name="Target Boost Error Correction" category="Direct Boost" address="58cd4" type="2D" scaling="OffsetWGDC">
	<table name="Boost Error" address="625b8" type="Y Axis" elements="17" scaling="BoostErrorPsi"/>
</table>
<table name="Boost Target #1A (High Gear Range)" category="Direct Boost" address="58e41" type="3D" swapxy="true" scaling="psia8">
	<table name="Throttle" type="X Axis" elements="9" scaling="Throttle_Main - Stored Minimum Throttle %" address="62610"/>
	<table name="RPM" type="Y Axis" elements="18" scaling="RPM" address="6258e"/>
</table>
<table name="Boost Target #1B (High Gear Range)" category="Direct Boost" address="58eeb" type="3D" swapxy="true" scaling="psia8">
	<table name="Throttle" type="X Axis" elements="9" scaling="Throttle_Main - Stored Minimum Throttle %" address="62610"/>
	<table name="RPM" type="Y Axis" elements="18" scaling="RPM" address="6258e"/>
</table>
<table name="Boost Target #2 (Low Gear Range)" category="Direct Boost" address="573f1" type="3D" swapxy="true" scaling="psia8">
	<table name="Throttle" type="X Axis" elements="9" scaling="Throttle_Main - Stored Minimum Throttle %" address="62610"/>
	<table name="RPM" type="Y Axis" elements="18" scaling="RPM" address="6258e"/>
</table>

<table name="Variable for Boost Control 0xC774 -> 0xC71A" category="Direct Boost" address="a0d06" type="1D" scaling="Hex16"/>
<table name="SHLR->SHLR2 0x5101 -> 0x5102" category="Direct Boost" address="a0d08" type="1D" scaling="Hex16"/>
<table name="Boost Error RAM Address 0xC590 -> 0xC58E (is 0x80858E for logging)" category="Direct Boost" address="a0d2e" type="1D" scaling="Hex16"/>
<table name="Boost Error RAM Address in Load Error Table 0xC590 -> 0xC58E" category="Direct Boost" address="625b4" type="1D" scaling="Hex16"/>
Last edited by Kasander; Jul 30, 2010 at 01:10 PM.
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Old Aug 1, 2010 | 08:30 PM
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Originally Posted by Kasander
D, I know it's been asked previously but no table has been posted for it yet.

5269xxxx would be appreciated.
They don't match with the 5268xxxx and I've tried all the other without success.
Damn needy MR owners...always gotta have something special. j/k...
I would like this as well, but not screaming need, I just want it. lol.
Last edited by kozmic27; Aug 1, 2010 at 08:32 PM. Reason: damn keyboard sticks
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Old Aug 1, 2010 | 10:38 PM
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yeah that 52690022 XML is good

thanks for that!
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Old Aug 2, 2010 | 08:06 AM
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Tephra...I know you have said you were kind of looking at this, but any chance of MAP sensor scaling any time soon? I really want to run psi based boost but with the new build I will be running at least 35psi I think and the MAP sensor won't support that, so we would have to stick with load based boost instead.
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Old Aug 2, 2010 | 05:15 PM
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working out the scaling for psi boost will be easy - i dont need the sensor for that, omni have formulas on their website.

the real problem is rescaling all the other tables in the ECU, at the moment I should be able to the main 3, but I can't recall if there are any others...
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Old Aug 2, 2010 | 08:23 PM
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Originally Posted by tephra
working out the scaling for psi boost will be easy - i dont need the sensor for that, omni have formulas on their website.

the real problem is rescaling all the other tables in the ECU, at the moment I should be able to the main 3, but I can't recall if there are any others...
Interested in using me as a test bunny? I assume the main 3 will be the big ones as in the ones that matter for saving a motor? If so I will order a 4 bar right now So we can try to get it working on my power tune coming in the next few weeks.
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Old Aug 2, 2010 | 08:25 PM
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Sure thing!

Do you have a wideband?
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Old Aug 2, 2010 | 08:26 PM
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Nope, but my tuners dyno does I am going to be breaking in the new motor on the dyno and the switch to psi boost will also be on the dyno.
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Old Aug 2, 2010 | 08:32 PM
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From: Hayward
Originally Posted by murlo26
Nope, but my tuners dyno does I am going to be breaking in the new motor on the dyno and the switch to psi boost will also be on the dyno.

All those mods and no wideband? tsk tsk.

- Bryan
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