[ddillenger]

Originally Posted by Mik325tds

Excellent. Thanks! Always eager to learn more about this transmission.
This is the latest data file I've been using.

Issue is, I am not equipped currently to unpack those into binaries

[Mik325tds]

Ok. Will send you binaries as soon as I get my K-Line hooked up.

[ddillenger]

Originally Posted by Mik325tds

Ok. Will send you binaries as soon as I get my K-Line hooked up.

Thank you.

[_TB_]

As for the torque limit - is it gear dependant, rpm dependant, or is it a single value torque limit?

[ChrizLoud]

I think the limits is set by the DDE

[ddillenger]

There are many, many, many torque limits. Each function has it's own. Converter clutch protection, Flare adaptation, etc, etc.

Where exactly are you experiencing issues?

[_TB_]

Originally Posted by ddillenger

There are many, many, many torque limits. Each function has it's own. Converter clutch protection, Flare adaptation, etc, etc.

Where exactly are you experiencing issues?

The gearbox is limiting the torque to 512NM (ZF6HP19TU) no matter what I set in the DDE. Only way to get more is the cheat with the NM->IQ calculations, which is far from ideal.

The engine is capable of making much more torque than 512Nm..

[DWR]

I am sure you have put a lot of work getting to the point you are now. Really appreciate you signing up to help. Wondering how much of your knowledge you are willing to share? I think Mik325tds was getting at the same point when he asked if you have an A2L type file for the TCU.

Until we can get a handle on the TCU, what can be done in the DDE to affect transmission behaviour? Are you familiar with some of the OBD flashers that supposedly effect shift feel without remapping the TCU? I have attached a document from a supplier.

[ddillenger]

Originally Posted by DWR

I am sure you have put a lot of work getting to the point you are now. Really appreciate you signing up to help. Wondering how much of your knowledge you are willing to share? I think Mik325tds was getting at the same point when he asked if you have an A2L type file for the TCU.

Until we can get a handle on the TCU, what can be done in the DDE to affect transmission behaviour? Are you familiar with some of the OBD flashers that supposedly effect shift feel without remapping the TCU? I have attached a document from a supplier.

If you have specific questions that I can answer, I will. I don't have an A2L for this unit, just the already compiled OLS, and even that is only for current winOLS users. I can however post specific map addresses, factors, photos, etc.

[DWR]

Originally Posted by ddillenger

If you have specific questions that I can answer, I will. I don't have an A2L for this unit, just the already compiled OLS, and even that is only for current winOLS users. I can however post specific map addresses, factors, photos, etc.

OK, so how do we quicken the shift speed?

[ddillenger]

Originally Posted by DWR

OK, so how do we quicken the shift speed?

You aren't going to get appreciable speed increases with software alone. The mechanical nature of these valvebodies is going to be a significant limitation. Line pressure can be altered however

[ChrizLoud]

With BMW:s E60 LCI with SAT gearbox (sport button pressed) reaction time when pressing the shift paddle is almost zero to none.

Also the shift are much faster.
Its the same gearbox but with different software so even if the valvebodies not are the best this show that it has great potential to be a great gearbox.

I also really miss harder the rev matching. I think its very important for the right feeling.


You can start watching at 8:30 if you want to jump right to the manual + sportbutton

[ChrizLoud]

This random video shows some up-shifts at wot.

[rjahl]

Originally Posted by ddillenger

You aren't going to get appreciable speed increases with software alone. The mechanical nature of these valvebodies is going to be a significant limitation. Line pressure can be altered however

I think we need to be careful with our wishes.

It seems like you guys need to manage the torque reduction and shift points. Faster shifts, maybe not.

When I removed the "torque reduction during shifts" from my N52 - ZF 6HP19A the shifts were hard, too hard. Still took the 800 milliseconds to shift but the bang was tough and unnatural. I modified the torque reduction period to 125 milliseconds, (hopefully just the pre-recharge period) and it's much better. Low throttle shifts feels normal but loaded shifts are hard.

It would be nice to tighten up the full load shifts a little, but I'm not sure I would like it. You guys have tons more torque than me and I can't help but wonder what happens to all that rotating mass and torque without some time to get things spinning at the same speed.

If not stated somewhere in all the pages, I would try to sum up your exact goals. Something like

Increase full load shift RPMs from x to Y
Blend shift RPMs/targets at partial throttle to new full load shift points
Manage Total Torque limits imposed by TCU, set targets
Manage Toque reduction during Shifts, set targets.

[DWR]

OK, how do we increase the shift rpm, only under full load, to 5,000 rpm?
I would assume that would be a specific map at a specific address?

[ChrizLoud]

Why do you want later shift points?
Car will probably be slower unless your on stage 3 with hybrids.

Regular maxed out stage 2 dpf off will not gain more power higher up in the rev range?

[ddillenger]

Originally Posted by rjahl

I think we need to be careful with our wishes.

It seems like you guys need to manage the torque reduction and shift points. Faster shifts, maybe not.

When I removed the "torque reduction during shifts" from my N52 - ZF 6HP19A the shifts were hard, too hard. Still took the 800 milliseconds to shift but the bang was tough and unnatural. I modified the torque reduction period to 125 milliseconds, (hopefully just the pre-recharge period) and it's much better. Low throttle shifts feels normal but loaded shifts are hard.

It would be nice to tighten up the full load shifts a little, but I'm not sure I would like it. You guys have tons more torque than me and I can't help but wonder what happens to all that rotating mass and torque without some time to get things spinning at the same speed.

If not stated somewhere in all the pages, I would try to sum up your exact goals. Something like

Increase full load shift RPMs from x to Y
Blend shift RPMs/targets at partial throttle to new full load shift points
Manage Total Torque limits imposed by TCU, set targets
Manage Toque reduction during Shifts, set targets.

This guy gets it. What you most people want, and what they THINK that they want are usually completely different.

I think the current focus should be in comparing similar binaries with known calibration changes.

I can post the shift maps if someone has a binary in mind.

[ddillenger]

Does BMW Scanner still work on these? I know it does on the slightly older models, and can read raw data

[DWR]

Originally Posted by ChrizLoud

Why do you want later shift points?
Car will probably be slower unless your on stage 3 with hybrids.

Regular maxed out stage 2 dpf off will not gain more power higher up in the rev range?

I would like later shift points because I am not interested in the power curves you have described.

[ChrizLoud]

Originally Posted by DWR

I would like later shift points because I am not interested in the power curves you have described.

[DWR]

Originally Posted by ddillenger

This guy gets it. What you most people want, and what they THINK that they want are usually completely different.

I think the current focus should be in comparing similar binaries with known calibration changes.

I can post the shift maps if someone has a binary in mind.

So, I posted a question right out of rjahl's list, rpm shift point change at full load. He hit the appreciation botton. Chrizloud is also interested. Can you please take a swing at answering?

[DWR]

Originally Posted by ddillenger

I can post the shift maps if someone has a binary in mind.

Obviously, a binary that we are interested will not be here for awhile.
Could you pick any binary and show us the shift maps. I think it would be instructive. Thanks.