SD2 dropping out of closed loop ?

chris

Member
Joined
May 24, 2001
In the file between 37 and 39 seconds, the system drops out of closed loop. Can anyone identify why it goes to open loop. I can't see any obvious data changes other than the BLM pass between 160 and 180, cells 6 & 7.
thanks
 

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  • oct 4 pull.dat
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Did it happen during spool up? The spool up feature temporarily delays closed loop. You can calibrate it for how long and at what boost it does this.
 
That looks like what happened. I'll check the spool values and see how that changes things.
 
Steve is correct.
On the Tune Page, see these parameters:

"Spool mode max MAP" - kPa above which closed loop will enable when in boost.

"Spool mode time limit" - When above 105kPa, a timer starts to enable closed loop, if above kPa setting is never met.
 
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