Acceleration Enrichment (Transient Fuel)
Our current accel enrichment is showing poor drivabiliy issues because the engine's acceleration requirements change with engine speed.
This is especially noticable on smaller (<2000cc) engines where users have complained about the fact they can get the enrichment correct at lower speeds, but then get issues with the engine bogging through being too rich at higher RPM.
Suggested Solution
Accel Enrichment Duration is calculated based on RPM, and scaled by dV/dT.
Accel Duration
Accel_RPM[0...3] defines the RPM break-points
Accel_Duration[0...3] defines the duration in mS corresponding to Accel_RPM.
TPS Scaling
DV/DT[0...3] defines throttle change speed break-points (in the same method that we currently use).
Scaling[0...3] biased at 100% so that enrichment values can be tuned with a fast TPS change speed, then scaled down for slower speeds. Or with slow speeds and scale them up to suit faster TPS change speeds.
[dnb] removed redundant comments
I have issues with this on a 5000cc engine, although they aren't anything like as severe as other people's problems here. MembersPage/DavidBlades
I´m seeing the same issues, even with a 2500cc engine, MembersPage/GunnarReynisson
I had horrendous trouble with this on the Mini 1400SPi MembersPage/Sprocket
I also have the same problems, on serveral car, Impreza/Legacy 2.0ltr,2.5ltr, and Vw VR6 Turbo 2.8ltr MembersPage/Skassa
Calibrating Accel enrich is a question i getfrom tuners using the software. MembersPage/Irishtwincam
I believe this to be something that should get priority to implement. MembersPage/JasonRussell
I'm also building a Mini injection setup and will come acorss the same problmes as listed by Sprocket. MembersPage/GavinWilkinson
For clarity the previous information has been moved to