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Re: 46RE standalone controller (I think I'll design one) [Re: hooziewhatsit] #1867446
07/09/15 11:15 PM
07/09/15 11:15 PM
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West Central Wisconsin
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It's awesome you're taking this on, I agree.

Yikes, even modern Mopars throw curve balls. Anyway to just unbolt and lower the rear of transmission down from the rear tranny crossmember? I really don't know if it can be done, just guessing if there's no tranny tunnel access.

I really wish I was more of a help.........................

Re: 46RE standalone controller (I think I'll design one) [Re: hooziewhatsit] #1867579
07/10/15 04:08 AM
07/10/15 04:08 AM
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Oregon
hooziewhatsit Offline OP
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Huzzah! boogie

With creative use of three different screwdrivers, I got the plug off.

After some troubleshooting, I discovered that the shifter has to be in Drive before I can control the governor pressure solenoid. Otherwise the sensor always reads 0 psi.

Once I moved the shifter however, it appears that I have full control over the solenoid.

The highest voltage I got from the gov. pressure sensor was only ~2.6v (~70psi), and that was with either zero current commanded, or with the power supply line to the solenoid disconnected.


If you ever find yourself in a fair fight, your tactics suck.
Re: 46RE standalone controller (I think I'll design one) [Re: hooziewhatsit] #1867823
07/10/15 05:47 PM
07/10/15 05:47 PM
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A word of caution on the pressure sensor/transducer. There are basically two now - the metal can sensor (1999 and prior 4 pin plug) and the 2000 and later plastic body (with 4 blade connector). They have different operating resistances - mix them up and you have trouble. The temperature side I believe is where the differences are - i believe the control side are the same 5V feed, etc. You mention gov. pressure sensor voltage - when you pull the plug - 70 psi sounds about right - you can't have more gov psi than line psi. If you spin the engine higher on the stand and line pressure rises this gov. psi should too - the purpose of this default pressure is to put the trans in default and launch in 3rd gear to make it driveable - you should still be able to do a manual shifter pull down and launch in 1st gear.

Re: 46RE standalone controller (I think I'll design one) [Re: hooziewhatsit] #1867827
07/10/15 06:06 PM
07/10/15 06:06 PM
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My documentation shows a different resistance value for the temperature sensor between the different generations. I have a plan to calibrate the computer during initial set up.

I'm using a special driver IC that will monitor and adjust the current through the governor solenoid automatically. So I can tell it to drive any value up to 1A, and it will do it.

I'll have to put the jeep on jackstands to test the VSS, so I'll monitor the gov. pressure to see if it rises once it's 'moving' and line pressure increases.

Do you recall (or can you say) how often the stock vehicles sampled and updated the governor pressure?


If you ever find yourself in a fair fight, your tactics suck.
Re: 46RE standalone controller (I think I'll design one) [Re: hooziewhatsit] #1869110
07/13/15 12:03 AM
07/13/15 12:03 AM
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Don't recall the sampling rate - I'll see if i can dig that up.The scan tool does not respond anywhere at the same rate as the actual controller so don't get misled using that - you probably already know this.

Re: 46RE standalone controller (I think I'll design one) [Re: hooziewhatsit] #1873341
07/19/15 05:05 AM
07/19/15 05:05 AM
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Got some more testing done.

With a very rudimentary feedback system, I'm moving 10psi in ~1 second. (while running at whatever pressure, I can tell it to target a pressure that's 10psi higher or lower, and it takes ~1 second to reach it)

Looking at the numbers, I think I can easily cut that adjustment time in half. At least when the fluid is nice and warm laugh2.

This week I'm planning on driving the jeep for the first time with the controller. I don't have the logic implemented for OD/LU yet, but I have enough for basic speed->governor pressure control.


If you ever find yourself in a fair fight, your tactics suck.
Re: 46RE standalone controller (I think I'll design one) [Re: hooziewhatsit] #1874550
07/20/15 08:20 PM
07/20/15 08:20 PM
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West Central Wisconsin
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Hoozie,

Just curious how confident you feel that you'll have a great working controller? I'm getting close to pulling the trigger on a transmission, and I have a couple of choices, RH or RE.

Re: 46RE standalone controller (I think I'll design one) [Re: DeMopuar] #1874585
07/20/15 09:16 PM
07/20/15 09:16 PM
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Just got back from the first drive test. It was... uneventful. At light throttle it hit 3rd at about 30mph. 3/4 throttle it hit third at about 50mph. It had no trouble keeping the governor pressure at the current MPH.

Right now I'm doing just a 1:1 psi:mph ratio, so the higher shift was all due from the throttle lever.

Overall, I'm pleased. It won't be much more work to add a look up table to generate a lower/higher pressure:speed calculation to raise the shift points as desired.

It also shouldn't take too long to add the logic for OD & LU.

Originally Posted By DeMopuar
Hoozie,

Just curious how confident you feel that you'll have a great working controller? I'm getting close to pulling the trigger on a transmission, and I have a couple of choices, RH or RE.



I'm pretty confident that once it's ready, the controller will be quite robust. I have a list of all the stock error conditions and codes. I can duplicate the test for the relevant ones, and in the event of an issue, I can show the stock error code.

If you (or anyone else) has a running & driving RE and wants to volunteer to do some testing and give me feedback, I can offer a steep discount on the controller.


If you ever find yourself in a fair fight, your tactics suck.
Re: 46RE standalone controller (I think I'll design one) [Re: hooziewhatsit] #1874590
07/20/15 09:22 PM
07/20/15 09:22 PM
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Canada
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This is awesome to hear! I'll buy a controller once they hit the market, I've got a '67 Coronet with a 440 that I'd like to put a 4.10 in, but would only do it if an OD was going in as well. Considered a NAG1 (awesome tranny but hard to get to work),46RH, or a 4L60/80E. Was going to go with the 46RH but if you dome up with a programmable controller I'd go 46RE

Re: 46RE standalone controller (I think I'll design one) [Re: hooziewhatsit] #1874596
07/20/15 09:33 PM
07/20/15 09:33 PM
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West Central Wisconsin
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Awesome.

I wish I had a working setup -- but right now I don't. I'm going down the RE road -- so I'll definitely be needing one. My car is a ways away from being roadworthy too. I've got to get it to fit in the transmission tunnel -- otherwise it would be game on.

At any rate, I'm going to be looking for two of these bad boys just like I said in an earlier post.

Very glad you're doing this and I wish I could help more.

Re: 46RE standalone controller (I think I'll design one) [Re: hooziewhatsit] #1929388
10/10/15 12:28 AM
10/10/15 12:28 AM
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Hoozie,

Any word on how the controller is going, or is it in a holding pattern?

Just curious is all.

Re: 46RE standalone controller (I think I'll design one) [Re: hooziewhatsit] #1929739
10/10/15 06:59 PM
10/10/15 06:59 PM
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Oregon
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Funny that you bumped this last night.

I was in a bit of a holding pattern, but just got back from another test drive. The first one with logic enabled to control OD and LU, and it blew up did just fine.

The disengagement was a little rough, but I have OD and LU set to disengage at almost the same speed, so I think the roughness was just the RPM jump from both turning off at (almost) the same time.

Originally Posted By Transman
Count the annulus lugs in the overdrive - the part that the park pawl engages (same lugs that the speed sensor senses) and then multiply that time revolutions per mile based on a given prop shaft speed.


Are these lugs going to have the same count, on every single 44/46/47/48 RE transmission? Near as I can tell by looking at my sensor outputs, there are roughly 64ish per each 1 driveshaft rotation.

Edit: I just went out and counted 23 lugs on a 2WD 46RE core I have.

Last edited by hooziewhatsit; 10/10/15 07:17 PM.

If you ever find yourself in a fair fight, your tactics suck.
Re: 46RE standalone controller (I think I'll design one) [Re: hooziewhatsit] #1950325
11/13/15 02:37 AM
11/13/15 02:37 AM
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Hanover, Ontario, Canada
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Why not just use t his one:
http://www.firepunk.com/anteater/


Matt Tebbutt
Ontario, Canada
Re: 46RE standalone controller (I think I'll design one) [Re: Moparmatty] #1950575
11/13/15 04:16 PM
11/13/15 04:16 PM
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Oklahoma City
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The $750 price tag sure got my attention! Seems a bit excessive.

Re: 46RE standalone controller (I think I'll design one) [Re: hooziewhatsit] #1950939
11/14/15 04:50 AM
11/14/15 04:50 AM
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Huh. Well, I guess that's that. *select all* *delete* laugh2

Their price really is reasonable, and is roughly what mine was going to cost.

Mine would have a few additional features, and wouldn't need a windows PC to configure it, but by going that route it adds quite a bit of cost.

This does take some of the wind out of my sails, and combined with a possible move and full time job in the next few months... So, if you need a controller right now, I'd take a serious look at what they have. I'll probably keep plugging away at mine, but with the potential move, the delivery timeline gets a bit fuzzy.


If you ever find yourself in a fair fight, your tactics suck.
Re: 46RE standalone controller (I think I'll design one) [Re: hooziewhatsit] #2152160
09/11/16 09:31 AM
09/11/16 09:31 AM
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bump! any news ?

//T

Re: 46RE standalone controller (I think I'll design one) [Re: hooziewhatsit] #2398385
11/04/17 01:50 PM
11/04/17 01:50 PM
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Arkansas
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So I’m going to bump an old thread, but I’ve been doing a lot of research and I’m interested in what you were working on. Is it still in the works? Any updates if so? If not, would you be interested in parting with what you have done so far? I’m going to be building/programming a module myself if you aren’t going to finish this one, as I don’t care for the one linked above, and I like the features you were going for in yours. Or maybe I could help further production on yours? I’m a carb intake away from a truck with a 5.9 46re stand-alone setup I could test on. (Albeit mine has 190k miles and could go at any time lol) What needs to be done to get this module to production?

Re: 46RE standalone controller (I think I'll design one) [Re: Speedog24] #2398667
11/05/17 02:42 AM
11/05/17 02:42 AM
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Originally Posted By Speedog24
So I’m going to bump an old thread, but I’ve been doing a lot of research and I’m interested in what you were working on. Is it still in the works? Any updates if so? If not, would you be interested in parting with what you have done so far? I’m going to be building/programming a module myself if you aren’t going to finish this one, as I don’t care for the one linked above, and I like the features you were going for in yours. Or maybe I could help further production on yours? I’m a carb intake away from a truck with a 5.9 46re stand-alone setup I could test on. (Albeit mine has 190k miles and could go at any time lol) What needs to be done to get this module to production?


Well... the prototype worked well enough controlling the governor pressure compared to the road speed. But, there was no way to adjust anything, nor any temperature/4lo compensation.

It really needs a LOT more programming to be anywhere near user friendly. Currently the idea was to use a hand held 4x20 character display to do all the programming (@ $120). I could make it use a PC, but that requires a laptop, and another program and more tech support. Or throw a bluetooth module on it and have it talk to a phone, but if I do just android, that cuts out half the market. Or I need to do two more mobile apps for apple and android.

Beyond that, one of the first main hangups is that I really know relatively little about transmissions and troubleshooting them. So if a customer installs this and says it slips or does something weird, I have no way to help them figure that out, other then sending them here laugh2

Secondly, I never did find a good source for any of the electrical plugs the harness needs (the 8 pin RE is $50 with pins already crimped, no good source for the speed sensor plugs, etc). With base costs like that, I'd have to charge at least $700-800 each to make it worthwhile, which seems higher than most would want to pay.

I also don't have the vehicle I was testing it on anymore, so I don't a way to test it.

Finally, I also recently got a full time job, and we're working on starting up a laser engraving business, so I don't have that much free time anymore to spend on it.


If you ever find yourself in a fair fight, your tactics suck.
Re: 46RE standalone controller (I think I'll design one) [Re: hooziewhatsit] #2399191
11/06/17 03:32 AM
11/06/17 03:32 AM
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Ok, so challenge accepted biggrin

I have the time, vehicle, and resources to make this happen. Besides all the discussion in this thread, do you have any other good info for the theory of operation you were following??

What hardware did you base your design around? And what language were you programming in? I have experience working with c, c++, and some python.

Would you consider parting with your prototype design, and let me continue it? Or am I better starting from scratch?

I am no trans expert, but I have rebuilt several autos and studied operational theories in respective atsg manuals and the like. I think there could be a few ways to reduce some hardware costs, and I’m willing to fry my trans trying. (It needs rebuilt before long any way). Feel free to PM me, I’d be happy to discuss ideas

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