Tip-In Torque Limiter / Trans Trunc?
Has anyone been successful in disabling this? I tried changing TCS, Tipin Limit, TipOut Limit on the Spark torque ratio limit table without success.
I also zeroed out the tipin modifier but it doesn't do anything possibly because it only affects BKT.
The tipin enabler is based on airmass per event so I can't figure out what to set for max and min.
What's happening is the spark advance goes to -10 when you suddenly tip in the throttle, causing a hesitation. The EcoBoost seems to handle this differently from older Modulars.
Any ideas?
I also looked at my logs and can see TipIn Limit and TipOut Limit under Torque Sources, but only TipIn Limit causes the "AntiClunk TipIn Tq Limit" Driver Demand Limit to kick in. I'm guessing this is causing the hesitation when I gun the throttle in certain events?
For instance, if I'm on the throttle merging onto the freeway and someone pulls in front and slows down, I have to drop throttle. But when I open the throttle immediately afterwards, the engine does absolutely nothing for a solid second or so.
Do I need to disable TipIn and TipOut limit? If so, which table(s) do I need to touch? Spark Torque Ratio Limit? or Spark Only Torque Reduction?
1 Attachment(s)
Trans Trunc Torque Reduction
After more datalogging, I was able to isolate exactly what was happening. I don't believe it is TipIn Detonation, but rather some torque rate limiter when I stab the throttle.
Check out the attached screenshot, focus on the 4th row of histograms. The purple is my actual throttle pedal position. The cyan and white represent actual throttle body blade angle/position and what the ECU commands. Notice how my pedal is stabbed open but the throttle blade isn't open? This was on the freeway when I simulated the condition where I'm on the throttle, suddenly lift off, then punch open the throttle again. The engine doesn't do anything for that split second because the throttle angle is closed due to hitting some kind of throttle/torque limiter.
This happens when the car is out of the factory with the original tune. One of the ways around this is to roll open the throttle, or shift into Sport mode and manually keep it in 2nd or 3rd (whichever depending on speed) on the freeway, like driving a manual car. I've never run into this with the ETC on my 07 Mustang GT or Cobalt SS Turbo. Those electronic throttles feel pretty much like cable throttles but both cars have manual transmissions.
Any ideas?