Stand alone tranmission controller

[buddrow]

UPDATE:

So, I'm trying to nail down any final additions before "finishing" the software for the controller. As it stands, I have implemented the following user information...

Streaming sensor data via TunerPro
Diagnostic trouble code section via TunerPo
Tuning via TunerPro
Shift light output for use with an external mounted light
Speedometer output for use with 2k ppm

Anything I'm missing that anyone would like to see?

Buddrow

[journeyman]

Hi all... This is my first post here.
I am looking for a solution for my P30 (1-ton) motorhome with the 4L80e that I just converted to a 2-speed rear end.

I have two issues:
1) old problem with OD only working until kickdown (from 4-3) after which, 4th no longer exists... it just freewheels and engages 3rd.
2) Need to solve the speedo question.

I was considering a stand alone TCU, but unsure if that really is my problem.
I am considering a Dakota Digital speedo driver unit (or two), but it would be great if I could find some sort of integrated solution.

The 4L80e trans. issue of not shifting into 4th after kick down is the primary concern, of course.

Thanks!

[34blazer]

I wouldn't mind a solution for the Dodge 46/47RE trans....

[buddrow]

journeyman, As Robert suggested in the thread you started, looking into the data stream will provide some much needed info. Need to look and see if 4th gear is commanded by the pcm, and if not, why? May be a problem with the throttle position sensor, but there again that goes back to looking at the data.

34blazer, I plan on integrating a few Chrysler as well as Ford transmissions by the time I'm "done". My focus right now is on the GM 4L60E and 4L80E.


I suppose I will add an update while I'm here. Not much has changed with the software, on the test bench it works as desired. Hooked up to my non-E truck speed sensor and TPS, the unit operates as desired from viewing the status of several LEDs/indicators and my Tunerpro adx. Currently I am building the vehicle harness for installation into my truck. I'll try to make some videos and post links in the next week or two showing the operation of the indicators and Tunerpro dash.

Buddrow

[watahyahknow]

hi all nice to meet you
new guy here just landed on this forum after doing a google search
i've been looking for a while for an affordable way to shift my 4L80E and i knew there was some experimentation going on with arduino boards
looks like its nearing completion and i'm looking forward to seeing the finisched product in action
if the price is right i definetely would consider buying one

eeehr the transmission i'm using is a jaguar version of the 4l80e and i have the original tcm for it too ...... it has a shitload of wires comming out of it that where originally connected to the ecm the shifter and a few other things in the car that have nothing to do with the transmission
does anyone know if this tcm can be made to work as a stand alone unit using signals from the sensors on the engine directly ?

[buddrow]

If you can give me the year, make, model of Jag I will look and see what its connected to. Otherwise, stay tuned for further developments on my controller.

Buddrow

[34blazer]

Still tuned in for updates. After constantly hitting brick wall after brick wall trying to find help hacking the JTEC, Im giving up on it all together. I want to build a trans controller that is arduino based and get it working so I can 86 the JTEC in favor of something with a little bit more support, maybe MSIII. I want a working controller and associated calibration. Good thing the 46/47RE transmissions are really basic as compared to other electronically controlled counterparts.

Any suggestions on what arduino to use?

Also need suggestions to drive the 4th gear, and TCC switches, and the EPC?

If you can also suggest parameters for shifting patterns too? I have some plans written out but I know theres a lot missing.

Thanks!