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Hi

I am currently trying to workout a way to calculate the wastegate throttle percentage on a 2D map. Would anyone have a forumla that works in big endian or the a way to find out the maximum throttle value?

I am currently using the formula : [value]*100/169

When i display up the wastegate section i get the following.

Anyone able to steer me in the right direction?

Here are the relevant scalings from the new EcuFlash - just substitute [value] for x, and I think it should work.

Colby

Code: Select all

      <scaling name="RPM" units="RPM" toexpr="x*50/256" frexpr="x*256/50" format="%.0f" min="0" max="9000" storagetype="uint16" endian="big"/>
   <scaling name="Throttle" units="%" toexpr="x*100/43516" frexpr="43516/100/x" format="%.2f" min="0" max="100" storagetype="uint16" endian="big"/>
   <scaling name="WGDuty" units="%" toexpr="x*100/246" frexpr="246/100/x" format="%.2f" min="0" max="100" storagetype="uint8"/>


Colby,

You are a champ!

All nice and neat now

I have noticed that a few people have marked out their "Target boost" maps with "BAR targets" , if i change it to "PSI" it seems to look a little more correct.

What would be your guys opinion on this?

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The BAR target's are in absolute pressure?

(ie, including the 1 atmo?)

Just a thought.

mrtMY03Aust wrote:The BAR target's are in absolute pressure?

(ie, including the 1 atmo?)

Just a thought.

They are.
They include the atmo, not necessary @ 1