Traction Control System Maps

Pytrex · **Posted:** Fri Jan 01, 2021 2:29 pm

Hello all!

So we've always wondered what the "Fuel Cut Prohibition Speed Table" did, since it didn't seem to affect decel fuel cut or anything like that. Well, it's actually apart of traction control! (In CF48D) This table would make it so that TCS fuel cut would not be able to take place at or below the set RPM. The rest time and suspension time/operation time seem to be referring to it handling fuel cut in more of an ABS sort of way, where it's almost like a pulsing cut rather than a full on cut.

What's extremely interesting is the fact that there are a few flags that alter the TCS logic. So while I haven't found the flag that directly enables or disables TCS logic as a whole (maybe hard coded? It's irrelevant, as pushing the button fully disables it anyway), there are a few flags that will allow you to setup the TCS in whatever way you like (to an extent.) I'm hoping that these flags allow for the system to be setup to allow more wheelspin, but still working to obtain optimum traction.

As this is something new, just be aware of the fact that this information will more likely than not be extremely outdated and potentially incorrect as more discoveries are made. So take it with a grain of salt.

Edit; It seems that mfFVTCS is actually a traction control fuel cut DISABLE (in a sense) flag. So if it's set to 1, it completely bypasses the fuel cut logic. But if it's set to 0, then it will allow for fuel cut during TCS operation.

pirelli2006 · **Joined:** Tue Apr 03, 2018 6:56 am **Posts:** 124

maybe it will be useful

for Flags 5

Code:

/begin CHARACTERISTIC mIDOS
      "Flag mIDOS"
      VALUE 0x00008698 REC_UBYTE_C 0 COMP_0283 0 255
    /end CHARACTERISTIC

    /begin CHARACTERISTIC mfFFTASW
      "0: no ISC air conditioning correction TASW 1: ISC air conditioning correction TASW available"
      VALUE 0x00008698 REC_UBYTE_C 0 COMP_0283 0 1 BIT_MASK 0x0080
    /end CHARACTERISTIC

    /begin CHARACTERISTIC mfFO2H
      "0: Front_O2 heater_ON/OFF_no_drive 1: Front_O2 heater_ON/OFF_drive "
      VALUE 0x00008698 REC_UBYTE_C 0 COMP_0283 0 1 BIT_MASK 0x0040
    /end CHARACTERISTIC

    /begin CHARACTERISTIC mfFAFICD
      "0: no PWST-linked FICD correction 1: PWST-linked FICD correction."
      VALUE 0x00008698 REC_UBYTE_C 0 COMP_0283 0 1 BIT_MASK 0x0020
    /end CHARACTERISTIC

    /begin CHARACTERISTIC mfSWAP
      "0: no exhaust secondary air pump control, 1: exhaust secondary air pump control, yes."
      VALUE 0x00008698 REC_UBYTE_C 0 COMP_0283 0 1 BIT_MASK 0x0010
    /end CHARACTERISTIC

    /begin CHARACTERISTIC mfBGLINH
      "0: No BGL control when entering KNK territory, 1: BGL control when entering KNK territory."
      VALUE 0x00008698 REC_UBYTE_C 0 COMP_0283 0 1 BIT_MASK 0x0008
    /end CHARACTERISTIC

    /begin CHARACTERISTIC mfFTCS
      "0:no TCS control, 1:TCS control."
      VALUE 0x00008698 REC_UBYTE_C 0 COMP_0283 0 1 BIT_MASK 0x0004
    /end CHARACTERISTIC

    /begin CHARACTERISTIC mfFKORFN
      "0: no radio fan control, 1: radio fan control."
      VALUE 0x00008698 REC_UBYTE_C 0 COMP_0283 0 1 BIT_MASK 0x0002
    /end CHARACTERISTIC

    /begin CHARACTERISTIC mfFLNBRN
      "0: no lean burn control, 1: lean burn control."
      VALUE 0x00008698 REC_UBYTE_C 0 COMP_0283 0 1 BIT_MASK 0x0001
    /end CHARACTERISTIC

for Flags 4

Code:

/begin CHARACTERISTIC mSWREG2
      "Flag mSWREG2"
      VALUE 0x00008B0A REC_UBYTE_C 0 COMP_0283 0 255
    /end CHARACTERISTIC

    /begin CHARACTERISTIC mfAPOTD
      "0:Control non-execute 1:Control active."
      VALUE 0x00008B0A REC_UBYTE_C 0 COMP_0283 0 1 BIT_MASK 0x0080
    /end CHARACTERISTIC

    /begin CHARACTERISTIC mfFTASEEP
      "0:no EEP-ROM writing 1:EEP-ROM writing"
      VALUE 0x00008B0A REC_UBYTE_C 0 COMP_0283 0 1 BIT_MASK 0x0040
    /end CHARACTERISTIC

    /begin CHARACTERISTIC mfFTPDGN
      "0: TCS system anomaly diagnosis prohibited 1: TCS system anomaly diagnosis allowed."
      VALUE 0x00008B0A REC_UBYTE_C 0 COMP_0283 0 1 BIT_MASK 0x0020
    /end CHARACTERISTIC

    /begin CHARACTERISTIC mfFVTCS
      "0: No TCS fuel cut variable control 1: TCS fuel cut variable control "
      VALUE 0x00008B0A REC_UBYTE_C 0 COMP_0283 0 1 BIT_MASK 0x0010
    /end CHARACTERISTIC

    /begin CHARACTERISTIC mfFTXACR
      "0:TCS_A/C no relay control 1:TCS_A/C relay control available."
      VALUE 0x00008B0A REC_UBYTE_C 0 COMP_0283 0 1 BIT_MASK 0x0008
    /end CHARACTERISTIC

    /begin CHARACTERISTIC mfFETDMM
      "0:ETD normal mode, 1:ETD matching mode."
      VALUE 0x00008B0A REC_UBYTE_C 0 COMP_0283 0 1 BIT_MASK 0x0004
    /end CHARACTERISTIC

    /begin CHARACTERISTIC mfFLTC
      "0:no torque control, 1:with torque control."
      VALUE 0x00008B0A REC_UBYTE_C 0 COMP_0283 0 1 BIT_MASK 0x0002
    /end CHARACTERISTIC

    /begin CHARACTERISTIC mfFKNALL
      "0: ALLC allowed during knock control 1: ALLC prohibited during knock control."
      VALUE 0x00008B0A REC_UBYTE_C 0 COMP_0283 0 1 BIT_MASK 0x0001
    /end CHARACTERISTIC

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