Yes, thats how I figured also.
Here is a plot with mifa_w, mifab_w and misol_w:
misol_w = mifa_w even though mifa_w is ~1.5% over mimax_w, I have to go over the functions more but this leaves me to believe there is some tolerance before intervention is induced.
Just double checked. mifab_w > misolv_w sets B_mdein for use in LLRBB (idle speed control). Not very interesting.
That mifa_w is > mimax_w is interesting though. Gotta dig deeper into MDFAW now.
mimax_w is mainly used in formulating mifa_w.
mifab_w is then min(mifa_w, mimax_w).
In MDBGRG, max(mimax_w, mifafu_w) is the factor for frtmki giving mitmbgr_w. After a min function with about 5 other variables, mibgrl_w is output to MDKOL to potentially limit milsol_w.
It also goes to CAN.
No interventions are directly caused by mimax_w.
Edit: At least not post MDFAW.