Search found 84 matches

by dbh97
Sun Feb 12, 2023 9:01 pm
Forum: Misc
Topic: ELI5 truck diesel engines
Replies: 1
Views: 6710

Re: ELI5 truck diesel engines

Short answer is "it varies"

Older stuff is purely mechanical, newer stuff has computer pressure control and injector firing.
Most new injectors are high-ish voltage piezo, and are fired multiple times per injection cycle.
by dbh97
Wed Jun 15, 2022 5:00 pm
Forum: Plug In Boards
Topic: Hellen Ford Taurus SHO
Replies: 6
Views: 12147

Re: Hellen Ford Taurus SHO

In my head, the way to do this is to make an ELM327 Hellen module, and let it do the heavy lifting. Interfacing with the ELM327's AT firmware should be easier than implementing n weird serial protocols.
by dbh97
Fri Apr 15, 2022 8:31 pm
Forum: Dev: Software
Topic: Transmission Control logic
Replies: 60
Views: 53053

Re: Transmission Control logic

Well, that kinda works. The dialog stays the same size as if the fields were actually there.
image.png
image.png (26.65 KiB) Viewed 13613 times
by dbh97
Fri Apr 15, 2022 3:20 am
Forum: Dev: Software
Topic: Transmission Control logic
Replies: 60
Views: 53053

Re: Transmission Control logic

I need some ideas for generalizing the configuration interface for transmission control solenoids. Currently I'm looking at the GM 4LXX series - 4L60E, 4L65E, 4L70E, 4L80E, 4L85E. Control on these transmissions has a lot in common, but also quite a few differences. Currently I'm focusing on the 4L60...
by dbh97
Sun Apr 10, 2022 10:24 pm
Forum: Dev: Software
Topic: Transmission Control logic
Replies: 60
Views: 53053

Re: Transmission Control logic

There are still a few things I don't know about how the TCC is controlled. The service manual states, regarding the 4-3 downshift: The PCM de-energizes the TCC solenoid valve, and operates the duty cycle of the TCC PWM solenoid valve to release the converter clutch for a smooth disengagement, prior ...
by dbh97
Sun Apr 10, 2022 2:34 pm
Forum: Dev: Software
Topic: Transmission Control logic
Replies: 60
Views: 53053

Re: Transmission Control logic

blundar doesn't have time/motivation to get me screenshots, but I found some that seem helpful: https://ls1tech.com/forums/automatic-transmission/1416477-how-4l60-65e-trans-tuning-shifting-tcc-tm-w-pics.html This makes a lot more sense than the SUPERMATIC controller tables, and mostly agrees with t...
by dbh97
Fri Apr 08, 2022 12:06 pm
Forum: Dev: Software
Topic: Transmission Control logic
Replies: 60
Views: 53053

Re: Transmission Control logic

I'm putting some time into developing this again, under pressure from nmstec . Right now I'm trying to understand the control strategy for the TCC. I've asked blundar for some screenshots of OE tunes, hopefully that will provide some insight. nmstec posted a screenshot in Slack of a few tables from ...
by dbh97
Mon Mar 14, 2022 2:52 pm
Forum: You and your build
Topic: 1997 Ford F-150 5.4 E4OD
Replies: 47
Views: 27563

Re: 1997 Ford F-150 5.4 E4OD

Current status of the new engine is that the block is painted and the crankshaft is installed. I haven't been working on it much because some other stuff has taken priority. I agreed to swap the transmission in my parent's car with a junkyard pull. I drained the fluid from the junkyard pull and it l...
by dbh97
Tue Nov 16, 2021 5:09 pm
Forum: Plug In Boards
Topic: NA6 board communication issues with Mac
Replies: 7
Views: 11747

Re: NA6 board communication issues with Mac

Doesn't dfu-util work on Mac?
by dbh97
Wed Oct 20, 2021 10:54 pm
Forum: Dev: Hardware
Topic: Ford EEC-V 104 Pin Connector
Replies: 26
Views: 21840

Re: Ford EEC-V 104 Pin Connector

@turbotrana OK I've got the PCB updated, this link should get you the right file. https://github.com/rusefi/rusefi/raw/master/hardware/Breakout_104pin_EEC-V-Connector/export/eecv_gerbers_0.3.zip Upload that to JLC and it should automatically select 4-layer and the proper board size. I think the only...
by dbh97
Sun Oct 17, 2021 9:32 pm
Forum: Dev: Hardware
Topic: Ford EEC-V 104 Pin Connector
Replies: 26
Views: 21840

Re: Ford EEC-V 104 Pin Connector

Hold off for a sec on ordering that, that's actually the old 2-layer files.
by dbh97
Sun Oct 17, 2021 2:52 pm
Forum: Dev: Hardware
Topic: Ford EEC-V 104 Pin Connector
Replies: 26
Views: 21840

Re: Ford EEC-V 104 Pin Connector

I've used Dirtypcbs quite a bit, but I found that this board was big enough that it was cheaper from JLC. At least when I did it; pricing may have changed.

Here are the fab files:
https://github.com/rusefi/rusefi/raw/master/hardware/Breakout_104pin_EEC-V-Connector/export/eecv_gerbers_0.1.zip
by dbh97
Fri Oct 15, 2021 9:41 pm
Forum: Dev: Hardware
Topic: Ford EEC-V 104 Pin Connector
Replies: 26
Views: 21840

Re: Ford EEC-V 104 Pin Connector

@turbotrana I'll send you one if you pay for the shipping. Not sure how much that would be. If China->AU shipping is comparable to China->US shipping, it might be cheaper for you to get some made. 5 PCBs cost me $44.50 shipped. There have been two versions. The first version I had made is a 2-layer ...
by dbh97
Mon Sep 27, 2021 3:46 am
Forum: You and your build
Topic: 2004 BMW 760 N73 "A big mistake"
Replies: 198
Views: 206540

Re: 2004 BMW 760 N73 "A big mistake"

Walmart restores headlights for like $10 or $15
by dbh97
Wed Sep 15, 2021 12:52 pm
Forum: Dev: Hardware
Topic: How to clean used PCB headers
Replies: 18
Views: 13074

Re: How to clean used PCB headers

Fonzie wrote:
Wed Sep 15, 2021 12:15 pm
AndreyB wrote:
Mon Sep 13, 2021 8:58 pm
Are we concerned about me being able to eat food washed in this dishwasher later?
I would not wash the food, only the dishes. My opinion. :lol:
https://www.huffpost.com/entry/dishwasher-cooking_b_3605859
by dbh97
Sat Aug 14, 2021 5:35 pm
Forum: You and your build
Topic: V12 M73 to Audi trans, with Proteus in Lamborghini Replicas
Replies: 251
Views: 182917

Re: V12 M73 to Audi trans, with Proteus in Lamborghini Replicas

Hook up your air compressor to the spark plug hole and listen for the hissing. That will tell you if it's the exhaust valve, intake valve, rings, or head gasket. If it's the rings, there's all kinds of potions people put in their cylinders to try to free up the rings. Sometimes they even work.
by dbh97
Mon Jul 19, 2021 3:48 pm
Forum: You and your build
Topic: 1997 Ford F-150 5.4 E4OD
Replies: 47
Views: 27563

Re: 1997 Ford F-150 5.4 E4OD

Block and crank have returned
IMG_20210716_170008.jpg
IMG_20210716_170008.jpg (1.75 MiB) Viewed 9444 times
by dbh97
Fri Jul 09, 2021 2:52 pm
Forum: Dev: Software
Topic: Praise Be Windows Subsystem for Linux
Replies: 3
Views: 2979

Re: Praise Be Windows Subsystem for Linux

I’d just like to interject for a moment....

Someday we will convert Andrey to Linux. :lol:

- btw i use manjaro
by dbh97
Tue Jul 06, 2021 8:13 pm
Forum: You and your build
Topic: 1997 Ford F-150 5.4 E4OD
Replies: 47
Views: 27563

Re: 1997 Ford F-150 5.4 E4OD

Pic for context:
IMG_20210706_150942.jpg
IMG_20210706_150942.jpg (1.85 MiB) Viewed 9532 times
Notably absent are the block and crank, which are off at the machine shop.

- junkyard dave
by dbh97
Sat Jun 12, 2021 10:38 pm
Forum: You and your build
Topic: 1997 Ford F-150 5.4 E4OD
Replies: 47
Views: 27563

Re: 1997 Ford F-150 5.4 E4OD

Sooooo.... image.png See those capacitors on Vdd? Turns out that following the circuit in the datasheet is a good idea. Thanks to @blundar for suggesting that this was probably the problem. It was. Interestingly, the behavior of the trans line pressure is completely different than when I was driving...
by dbh97
Tue Jun 08, 2021 12:20 am
Forum: You and your build
Topic: Everything AUDM Ford
Replies: 4
Views: 3805

Re: Everything AUDM Ford

Can you post the document with how the trans works? I can't seem to find it.
by dbh97
Sun May 30, 2021 12:28 pm
Forum: You and your build
Topic: 1997 Ford F-150 5.4 E4OD
Replies: 47
Views: 27563

Re: 1997 Ford F-150 5.4 E4OD

I'm fresh out. Time for my nth Digikey order I guess. In other news, I've got all the pins crimped for a Proteus adapter harness, just need to stick them in the connector. Here's the pinout and Proteus mapping if someone wants to look it over. My pinout is column E. https://calc.holdemanenterprises....
by dbh97
Sat May 29, 2021 9:51 pm
Forum: You and your build
Topic: 1997 Ford F-150 5.4 E4OD
Replies: 47
Views: 27563

Re: 1997 Ford F-150 5.4 E4OD

I changed my mind about giving up, and decided to try again. New gate driver, new MOSFET. And I found a problem: I had the diode wired to ground instead of 12V. I don't think that would kill the gate driver, but I decided to give it another try anyway. It worked perfectly - for maybe a minute. Then ...
by dbh97
Sat May 29, 2021 2:16 pm
Forum: You and your build
Topic: 1997 Ford F-150 5.4 E4OD
Replies: 47
Views: 27563

Re: 1997 Ford F-150 5.4 E4OD

Well it didn't work. I added a 100 ohm resistor to the gate, and replaced the 1n4001 with a SB5200. It failed in the same manner as the first one. The gate driver outputs about 4.5V, no matter the state of the input. Theories: 1: My MOSFET is somehow broken. I tested it on the ATX power supply I use...
by dbh97
Wed May 26, 2021 4:41 pm
Forum: You and your build
Topic: 1997 Ford F-150 5.4 E4OD
Replies: 47
Views: 27563

Re: 1997 Ford F-150 5.4 E4OD

Thank you both for the lessons in electronics! I ordered some more drivers from Digikey. When those arrive I'll replace the one that's toast, add an 100ohm resistor, and replace the 1N2001 diode with a SB5200. That diode should work, no? It's what I happen to have. It's rated at 5A average, 20A repe...
by dbh97
Wed May 26, 2021 4:12 am
Forum: You and your build
Topic: 1997 Ford F-150 5.4 E4OD
Replies: 47
Views: 27563

Re: 1997 Ford F-150 5.4 E4OD

The yellow trace is set to zero offset, so GND should be the middle division. So it looks like the noise is indeed going through ground, but centered maybe 0.5v above it. Taking that into account, the max voltage must be about 5v.
by dbh97
Wed May 26, 2021 3:02 am
Forum: You and your build
Topic: 1997 Ford F-150 5.4 E4OD
Replies: 47
Views: 27563

Re: 1997 Ford F-150 5.4 E4OD

So I'm taking a step back and forgetting about current mode control for now. One of the things I learned from trying to figure out how to do it was that I need a gate driver for the MOSFET. So I built this circuit. driver.png At first I did not connect the two outputs of the driver, and this was the...
by dbh97
Sun May 23, 2021 2:35 am
Forum: You and your build
Topic: V12 M73 to Audi trans, with Proteus in Lamborghini Replicas
Replies: 251
Views: 182917

Re: V12 M73 to Audi trans, with Proteus in Lamborghini Replicas

mke's can't actually use that nice board because he's busy rebuilding his house one piece at a time. Someone needs to go bribe his wife to lift her thumb for a bit.
/jk I respect it.