Idle Stability map?

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Jun 5, 2013 | 06:19 AM

#61

RS200Z

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From: Singapore

Quote:

Originally Posted by itzwolf

I have these maps listed for 2011 ROM's anyone have them for the 55570005/6? Rich?

This is what I came up with for the USDM 55570005/6.

Code:

<scaling name="Idle RPM Offset" units="RPM diff" toexpr="(32768-x)*1000/256" frexpr="32768-(x*256/1000)" format="%.0f" min="-200" max="200" inc="4" storagetype="uint16" endian="big"/>

<table name="Idle Timing Compensation 1.1" category="Idle" address="5F608" type="2D" swapxy="false" scaling="IgnitionCompensation">
  <table name="RPM" address="62900" type="Y Axis" elements="29" scaling="Idle RPM Offset"/>
</table>

<table name="Idle Timing Compensation 1.2" category="Idle" address="5F62A" type="2D" swapxy="false" scaling="IgnitionCompensation">
  <table name="RPM" address="62900" type="Y Axis" elements="29" scaling="Idle RPM Offset"/>
</table>

<table name="Idle Timing Compensation 2.1" category="Idle" address="5F64C" type="2D" swapxy="false" scaling="IgnitionCompensation">
  <table name="RPM" address="62900" type="Y Axis" elements="29" scaling="Idle RPM Offset"/>
</table>

<table name="Idle Timing Compensation 2.2" category="Idle" address="5F66E" type="2D" swapxy="false" scaling="IgnitionCompensation">
  <table name="RPM" address="62900" type="Y Axis" elements="29" scaling="Idle RPM Offset"/>
</table>

Last edited by RS200Z; Jun 5, 2013 at 06:22 AM.

Jun 14, 2013 | 05:38 PM

#62

masafina

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From: Puerto Rico

thanks

Jun 21, 2013 | 01:19 PM

#63

JohnBradley

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The last map to idle control in the X is going to be something like airflow or load vs TPS. It will most likely be a 2D horizontal style table (doesnt really matter I suppose) with a minimum TPS value for a given load or airflow value.

Something like this (ignore current labels)-

Think of the purple side as airflow voltage or load, the bottom is minimum TPS duty for said voltage.

Jun 22, 2013 | 05:51 AM

#64

RS200Z

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From: Singapore

Would you be releasing the definitions for it soon?

Jun 22, 2013 | 02:51 PM

#65

JohnBradley

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Well much like how this thread started I am just the Idea man, not the magic maker. I knew that idle stability maps would be in a DBW car much as I know there will be a minimum TPS vs airflow table. Subaru DBW teaches a lot in what to expect for generic controls.

If I had the def I would have shared, but alas I am not that smart of a disassembler.