Trans control - 0020 release
Moderators: jsmcortina, muythaibxr
Re: Trans control - 0020 release
It looks like even though the 4T40E has 3 signal wires and switches in the TFP assembly it only uses 2 (B and C) for position detection. The 3rd wire is for TCC engagement detection.
The switch logic is as follows: Park/Neutral Switch B Hi Switch C Hi
Reverse Switch B Hi Switch C Low
Drive Switch B Low Switch C Hi
Invalid Switch B Low Switch C Low
If there is any other information you need to make this work James, such as gear ratios, normal shift points, etc.... please let me know. I have access to the factory service info now.
The switch logic is as follows: Park/Neutral Switch B Hi Switch C Hi
Reverse Switch B Hi Switch C Low
Drive Switch B Low Switch C Hi
Invalid Switch B Low Switch C Low
If there is any other information you need to make this work James, such as gear ratios, normal shift points, etc.... please let me know. I have access to the factory service info now.
Linfert Performance/321 Motorsports
SCCA 2019 SM National Champion Crew Chief
SCCA 2023 FP National Champion Tuner/electrical engineer
100s of MS systems built installed and tuned
Support the developers!
SCCA 2019 SM National Champion Crew Chief
SCCA 2023 FP National Champion Tuner/electrical engineer
100s of MS systems built installed and tuned
Support the developers!
-
- Site Admin
- Posts: 39587
- Joined: Mon May 03, 2004 1:34 am
- Location: Birmingham, UK
- Contact:
Re: Trans control - 0020 release
No manual gear positions on the 4T40E ?
The 4L40E and 5L40E look to follow a similar control strategy to the 4L80E, so ought to be straightforward to add. I need to consider the engine-breaking solenoid though. That linked PDF doesn't show the 4L40E solenoid pattern, can't be exactly the same as "all-OFF" needs to give a gear and not the non existant 5th ?
The Microsquirt has six easy outputs for solenoids, so the 5L40E is ok there.
When I get back to this in a couple of weeks, I'll re-arrange the code some more to support more gears and look to add in these models also.
James
The 4L40E and 5L40E look to follow a similar control strategy to the 4L80E, so ought to be straightforward to add. I need to consider the engine-breaking solenoid though. That linked PDF doesn't show the 4L40E solenoid pattern, can't be exactly the same as "all-OFF" needs to give a gear and not the non existant 5th ?
The Microsquirt has six easy outputs for solenoids, so the 5L40E is ok there.
When I get back to this in a couple of weeks, I'll re-arrange the code some more to support more gears and look to add in these models also.
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
Re: Trans control - 0020 release
Apparently not. Just the park/neutral, reverse and drive.
Linfert Performance/321 Motorsports
SCCA 2019 SM National Champion Crew Chief
SCCA 2023 FP National Champion Tuner/electrical engineer
100s of MS systems built installed and tuned
Support the developers!
SCCA 2019 SM National Champion Crew Chief
SCCA 2023 FP National Champion Tuner/electrical engineer
100s of MS systems built installed and tuned
Support the developers!
-
- Site Admin
- Posts: 39587
- Joined: Mon May 03, 2004 1:34 am
- Location: Birmingham, UK
- Contact:
Re: Trans control - 0020 release
Good info, but slightly confusing at times.ashford wrote:4t40e reference http://beta.askatech.com/AskATechLive/A ... /G1020.pdf
On page G192 there is a selector diagram (a truth table would be better.) Does "DR" mean "Drive position" (i.e. manual 3rd), "Drive and Reverse", "Drive" (meaning 4,3,2,1) ?
That's probably easy enough to figure out on an install if I just make status indicators on the dash - the user can just run through the positions and draw up the truth table.
The output pattern is the same as the 4L80E.
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
Re: Trans control - 0020 release
Here's the problem with G192, even though it shows an A, B and C pressure switch signal, it doesn't use the "A" signal for anything. Or at least it doesn't on 05 models. They use the input and output speeds instead to calculate the actual gear ratio and compare that to the known commanded gear ratio. If it matches then all is good, if not CEL comes on and an incorrect gear ratio code is set. And DR is Drive meaning 4,3,2,1 and the 05 truth table is what I posted at the top of this pagejsmcortina wrote:Good info, but slightly confusing at times.ashford wrote:4t40e reference http://beta.askatech.com/AskATechLive/A ... /G1020.pdf
On page G192 there is a selector diagram (a truth table would be better.) Does "DR" mean "Drive position" (i.e. manual 3rd), "Drive and Reverse", "Drive" (meaning 4,3,2,1) ?
That's probably easy enough to figure out on an install if I just make status indicators on the dash - the user can just run through the positions and draw up the truth table.
The output pattern is the same as the 4L80E.
James
Linfert Performance/321 Motorsports
SCCA 2019 SM National Champion Crew Chief
SCCA 2023 FP National Champion Tuner/electrical engineer
100s of MS systems built installed and tuned
Support the developers!
SCCA 2019 SM National Champion Crew Chief
SCCA 2023 FP National Champion Tuner/electrical engineer
100s of MS systems built installed and tuned
Support the developers!
Re: Trans control - 0020 release
asside from the pressure manifold there is also the lever position sensor, using 3 of the 4 outs can give different signals for gear position
-
- Super MS/Extra'er
- Posts: 1978
- Joined: Wed Apr 15, 2009 11:31 am
- Location: Oxford, PA
- Contact:
Re: Trans control - 0020 release
Thanks James. I'm still looking for info on the shift lever position when BMW introduced the steptronic lever and the +/- "manual" gate. In that case it only gets PNRD with a side action to get into "manual" mode.
-
- Site Admin
- Posts: 39587
- Joined: Mon May 03, 2004 1:34 am
- Location: Birmingham, UK
- Contact:
Re: Trans control - 0020 release
The actual selector input doesn't matter - the code can surely accomodate them. It is really a matter of deciding what is actually present on different vehicles and naming a transmission application in the code appropriately.
So the difference between 2 wire 4T40E and 3 wire 4T40E isn't a problem so long as someone can confirm solidly "this is how it actually works" using stock wiring on their install. i.e. the aim is to make the code transferrable to other customers with the minimal amount of"mods.
James
So the difference between 2 wire 4T40E and 3 wire 4T40E isn't a problem so long as someone can confirm solidly "this is how it actually works" using stock wiring on their install. i.e. the aim is to make the code transferrable to other customers with the minimal amount of"mods.
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
Re: Trans control - 0020 release
James,
The vehicle that got this whole conversation going is currently running on stock management. They just had to do some ugly hacking to make it all work and want/need a more elegant solution. (The PCM needs both the BCM and a custom Arduino board to work at all!) I will try to go Monday and do some testing to get the info needed for the TFP switches and see if the 05 models have switch "A" wired in the trans itself.
The vehicle that got this whole conversation going is currently running on stock management. They just had to do some ugly hacking to make it all work and want/need a more elegant solution. (The PCM needs both the BCM and a custom Arduino board to work at all!) I will try to go Monday and do some testing to get the info needed for the TFP switches and see if the 05 models have switch "A" wired in the trans itself.
Linfert Performance/321 Motorsports
SCCA 2019 SM National Champion Crew Chief
SCCA 2023 FP National Champion Tuner/electrical engineer
100s of MS systems built installed and tuned
Support the developers!
SCCA 2019 SM National Champion Crew Chief
SCCA 2023 FP National Champion Tuner/electrical engineer
100s of MS systems built installed and tuned
Support the developers!
-
- Super MS/Extra'er
- Posts: 2637
- Joined: Tue Sep 14, 2004 4:17 pm
- Location: Aberdeen, Wa
Re: Trans control - 0020 release
Thanks for working on this James. My current project is getting a 4l80e and will be running microsquirt for tranny and ms3pro for engine management.
Everything looks great and very user friendly.
Two questions. Is there an option for outputs to have a dash indicator in leds for gear postion?
And a Dyno question. Is there a way to lock it in Drive? Or is it just creating a Dyno tune where 1/2 gears are setup low on the upshifts?
Everything looks great and very user friendly.
Two questions. Is there an option for outputs to have a dash indicator in leds for gear postion?
And a Dyno question. Is there a way to lock it in Drive? Or is it just creating a Dyno tune where 1/2 gears are setup low on the upshifts?
Volvo 940, 2jzge, MS3Pro, daily
240Z, 2JZ, MS3Pro boost control
240Z, 2JZ, MS3Pro boost control
Re: Trans control - 0020 release
Regarding 3rd gear(1:1) dyno pulls. With chip tuning software like SCT you would just set the MPH for the 2-3 downshift to something really low so it would never downshift. And then manually hit the OD cancel.
I need to find some Ford E4OD info for this conversation. It would be awesome to have an all MS solution for an early Lightning
I need to find some Ford E4OD info for this conversation. It would be awesome to have an all MS solution for an early Lightning
1995 Ford Lightning. Dart based 427 Windsor, Novi 2000, full sequential, E-85, etc. MS3X/v3.57
http://www.buildpics.org/
http://www.buildpics.org/
Re: Trans control - 0020 release
Time constraints kept me from getting a truth table but it looks like the 05 and up 4T40Es do have the Switch "A" wired so I've just got to do some testing. I'm heading to Hawaii in a couple of hours for vacation (Hence no megameet this year ) but I'll get the info when I return.prof315 wrote:James,
The vehicle that got this whole conversation going is currently running on stock management. They just had to do some ugly hacking to make it all work and want/need a more elegant solution. (The PCM needs both the BCM and a custom Arduino board to work at all!) I will try to go Monday and do some testing to get the info needed for the TFP switches and see if the 05 models have switch "A" wired in the trans itself.
Linfert Performance/321 Motorsports
SCCA 2019 SM National Champion Crew Chief
SCCA 2023 FP National Champion Tuner/electrical engineer
100s of MS systems built installed and tuned
Support the developers!
SCCA 2019 SM National Champion Crew Chief
SCCA 2023 FP National Champion Tuner/electrical engineer
100s of MS systems built installed and tuned
Support the developers!
Re: Trans control - 0020 release
James,
I PM'd you about two 4L80Es with similar shift controller problems where the speed sensor drops out around 45MPH and reads approximately half speed. I am not sure if this will require a hardware or software fix, feel free to answer on here, I know others have had this problem as well.
Thanks, Dan
I PM'd you about two 4L80Es with similar shift controller problems where the speed sensor drops out around 45MPH and reads approximately half speed. I am not sure if this will require a hardware or software fix, feel free to answer on here, I know others have had this problem as well.
Thanks, Dan
-
- Super MS/Extra'er
- Posts: 17499
- Joined: Thu Apr 16, 2009 8:08 pm
Re: Trans control - 0020 release
Junkyard 4L60E arrived today. The pickup goes on the lift tomorrow...
Matt Cramer -1966 Dodge Dart slant six running on MS3X
Re: Trans control - 0020 release
James, does this thread provide any useful info for the Ford E4OD?
http://www.msgpio.com/forums/viewtopic.php?f=4&t=563
http://www.msgpio.com/forums/viewtopic.php?f=4&t=563
1995 Ford Lightning. Dart based 427 Windsor, Novi 2000, full sequential, E-85, etc. MS3X/v3.57
http://www.buildpics.org/
http://www.buildpics.org/
-
- Site Admin
- Posts: 39587
- Joined: Mon May 03, 2004 1:34 am
- Location: Birmingham, UK
- Contact:
Re: Trans control - 0020 release
Lots of excellent info there.Raymond_B wrote:James, does this thread provide any useful info for the Ford E4OD?
http://www.msgpio.com/forums/viewtopic.php?f=4&t=563
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
-
- Site Admin
- Posts: 39587
- Joined: Mon May 03, 2004 1:34 am
- Location: Birmingham, UK
- Contact:
Re: Trans control - 0020 release
Driving yet?!?Matt Cramer wrote:Junkyard 4L60E arrived today. The pickup goes on the lift tomorrow...
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
Re: Trans control - 0020 release
Joe
78 Chev 4x4 MS3. Microsquit 4l80E (Toy Hauler/Beta test rig )
70 AAR Cuda -Hanger queen- 340 MS3 Seq- XV Level II
70 AAR Cuda -Hanger queen- 340 MS3 Seq- XV Level II
Re: Trans control - 0020 release
Perfect! Thanks Joe!Joe wrote:Hope this helps-(2005)
Joe
And looking at it signal "P" could be left out and just "A" "B" and "C" used like the 4L80-E
Linfert Performance/321 Motorsports
SCCA 2019 SM National Champion Crew Chief
SCCA 2023 FP National Champion Tuner/electrical engineer
100s of MS systems built installed and tuned
Support the developers!
SCCA 2019 SM National Champion Crew Chief
SCCA 2023 FP National Champion Tuner/electrical engineer
100s of MS systems built installed and tuned
Support the developers!