Any tune basics for the 65RFE ?

[Jim P 2.0]

byte lowrange = (DAT_600026d5 & 0x20) != 0;

^^^^^^^^^^^^

an 8 bit flag array changes status for shift lever position, tow/haul mode selected or not, etc

[Jim P 2.0]

the entire ngc4 is transmission on the 2007.5-2009 68RFE, the engine in in the cm2100

[Jim P 2.0]

byte lowrange = (DAT_600026d5 & 0x20) != 0;

^^^^^^^^^^^^

an 8 bit flag array changes status for shift lever position, tow/haul mode selected or not, etc

0x00 = Tow/Haul Mode Selected
0x01 =
0x02 =
0x04 =
0x08 = ERS enabled below 6th gear
0x10 =
0x20 = Low Range Selected
0x40 =
0x80 = Normal Mode

[sparkybg]

Wow! Is logging these addresses is a standart function of the controller, or do you have a modified one to send them through CAN?

[Jim P 2.0]

monitoring through j1939

[10le]

0x00 = Tow/Haul Mode Selected
0x01 =
0x02 =
0x04 =
0x08 = ERS enabled below 6th gear
0x10 =
0x20 = Low Range Selected
0x40 =
0x80 = Normal Mode

This was one missing puzzle.

[LilSick]

where is winter?

[Jim P 2.0]

This was one missing puzzle.

I don’t really have the time available to work on it like I would like to, be lucky to get a few hours a week on it.

[10le]

Same with me. It is a hobby, not a job.

[10le]

2ndgear.JPG
Attachment 148262

Attachment 148261


Hoy together

Did try to do some comparison in 2nd gear between normal and Tow/Haul (see attachment):

Take care: shaftspeed is output shaft, NOT turbine speed (which is used in the maps)! --> easier comparsion with shift schedule


Abbreviation list:
PL= Unlock to Partial Lock
FtP= Full Lock to Partial Lock
PtF= Partial Lock to Full Lock
UL= Unlock
TH= Tow/Haul


The crossing at 26? TPS ist really crazy
For normal modus PL and PtF are at the same line (what???)


Missing information in the chart is: Partial TCC Apply, did not understand this information; for me it looks like an ordinary threshold; below: TCC apply is not allowed; above it is enabled.


Next target: ToDo the same analysis for the other gears.

Servus
10le

[Jim P 2.0]

Your attachments don’t work. Also Throttle Angle is actually used in shift and lockup tables as well where every platform labels it as a percent other than EZLynk. Shift tables use output shaft speed while lockup tables use turbine speed. On upshift tables x throttle angle and above x output shaft speed an upshift is allowed to occur. Same goes for lockup tables. Nothing complicated about any of that stuff

[10le]

Your attachments don?t work. Also Throttle Angle is actually used in shift and lockup tables as well where every platform labels it as a percent other than EZLynk. Shift tables use output shaft speed while lockup tables use turbine speed. On upshift tables x throttle angle and above x output shaft speed an upshift is allowed to occur. Same goes for lockup tables. Nothing complicated about any of that stuff

Sry, that you can not see the attachment.

Is there an alternative way to upload?


You are right. There is nothing special about. I only see the working together of TCC Apply and Shift schedule as a little challange. This is why I created this excel.

Servus
10le

[Jim P 2.0]

Excel sheet isn’t practical for lockup schedules due to turbine slip while unlocked and when in partial lockup it’s pulsewidth modulated to reduce slip before full lockup to soften the transition.

[Crooks1130]

Figured it out. I kept hitting the tcc lock right before the 2-3 shift I just raised the apply speed to 2200+ and it solved it.

so I ran into another problem the converter is locking up between 2-3 shift causing a bad surge/lunge feeling. I'll revise that and move forward. besides that everything feels great.

I know this post was years ago, but does anyone have any idea what tables Tadias was changing to 2200+ to stop the surging between shifts?

I am running into the same issue but not exactly sure where to apply the change.

[LilSick]

46585 needs to be lowered about 100 rpm

and 46576 needs to be completely re done below 3900