GenBoard/UnderDevelopment/AccelerationEnrichment (2015-01-01 07:00:00)

Acceleration Enrichment (Transient Fuel)

Acceleration Enrichment can be derived from two tables.

Transient fuel is the output of the RPM Acceleration Enrichment table * TPSaccel Enrichment Scalar.

Pulse width enrichment time

AccelEnrichmentFig1.png

RPM Acceleration Enrichment

RPM Enrichment PW Decay Start
RPM3 et3 ms ds3 ms
RPM2 et2 ms ds2 ms
RPM1 et1 ms ds1 ms
RPM0 et0 ms ds0 ms

TPSaccel Enrichment Scalar

AccelEnrichmentFig2.png

TPSaccel Scaling
dv/dt2 as2 %
dv/dt1 as1 %
dv/dt0 as0 %

So with With the following entry:

RPM Enrichment Time Decay Start
5500 4.4 0.8
4000 4.1 0.8
TPSaccel Scaling
50 100%
25 65%

Accelleration from 4500rpm with a TPSaccel of 35 would give:

RPM Enrichment of 4.2mS decay start 0.8ms

Scaled Enrichment 4.2mS * 0.79 = 3.318ms decay start 0.8ms * 0.79 = 0.632ms