Search found 3643 matches

by kb1gtt
Sat Jul 04, 2020 2:12 am
Forum: Your car & your engine
Topic: 2004 GY200 single cylinder
Replies: 10
Views: 2473

Re: 2004 GY200 single cylinder

Rhinoman Any updated on this effort? I'm curious if the injector worked as expected. I once read an article which claimed these injectors sucked, but did not provide any useful details. I think they claimed it was not accurate in the amount of fuel it delivered because it did not compensate for the...
by kb1gtt
Fri Jun 26, 2020 10:40 am
Forum: Hardware
Topic: Uber simple no PC ECU
Replies: 4
Views: 673

Re: Uber simple no PC ECU

Looks like this is feasible. See below snap shot of a LTSpice simulation which shows a analog MAF signal being used to vary a fuel pulse from around 1 mS up to about 10mS. The pulse is triggered via a single pulse on the crank. R13 could be a POT which could allow you to adjust rich vs lean ratio. T...
by kb1gtt
Tue Jun 23, 2020 1:23 am
Forum: Your car & your engine
Topic: Proteus v12 club
Replies: 89
Views: 3456

Re: Proteus v12 club

That is likely a small cap charging up. Do you get that on all the wires, or just certain ones?
by kb1gtt
Mon Jun 22, 2020 9:08 pm
Forum: Your car & your engine
Topic: Proteus v12 club
Replies: 89
Views: 3456

Re: Proteus v12 club

Part of switching + and - is because you'll likely see a slight conduction in one direction vs the other. AKA I might guess the red and black are the voltage source and the blue and white are the return signals. I suspect that you'll measure a slight reading on red and back with one particular polar...
by kb1gtt
Mon Jun 22, 2020 7:42 pm
Forum: Your car & your engine
Topic: Proteus v12 club
Replies: 89
Views: 3456

Re: Proteus v12 club

Did you measure
Red to black
Red to white
Red to blue
Red to tan
Red to yellow

Try making those measurements with etb opened and closed. As well try with you meter + on red then again with - on red.
by kb1gtt
Sat Jun 20, 2020 5:51 pm
Forum: Hardware
Topic: SBC Single-board computers
Replies: 16
Views: 1327

Re: SBC Single-board computers

I've had success with this PLC setup. It's sereil to the modem. We could figure out the stream and mimic it with an stm. https://unitronicsplc.com/wp-content/uploads/2015/12/The_GSM-17J_Modem_Kit_Cinterion-EHS6T_08-15.pdf
by kb1gtt
Fri Jun 19, 2020 9:24 pm
Forum: Misc
Topic: Forum slowness & everything else forum status
Replies: 57
Views: 17720

Re: Forum slowness & everything else forum status

I guess I should mention, -- When on my Android phone, using Chrome, when I browse to a forum there is a link for "Board index" at the top and bottom of the thread. The link at the top always works, the one at the bottom works like 50% of the time. It seems longer thread are more likely to fail. I u...
by kb1gtt
Thu Jun 18, 2020 9:55 pm
Forum: Hardware
Topic: Need help with Frankenso 0.5 board, maybe short circuit or something is missing
Replies: 14
Views: 270

Re: Need help with Frankenso 0.5 board, maybe short circuit or something is missing

Yes the op-amp has a divider. Yours appears to be a correct 2:1 step down. The ADC is limited to something like 3V, so we have to step down the 5V to below 3V.
by kb1gtt
Thu Jun 18, 2020 6:45 pm
Forum: Hardware
Topic: Need help with Frankenso 0.5 board, maybe short circuit or something is missing
Replies: 14
Views: 270

Re: Need help with Frankenso 0.5 board, maybe short circuit or something is missing

Can you check the op-amp circuits? Those could be broken, or the STM32 could be broken. Do you measure the proper volts on the STM32 pin, then read an incorrect value in TS? Currently My guess is that the op-map is not providing a proper signal to the STM32, so the STM32 then provides a bad signal t...
by kb1gtt
Wed Jun 17, 2020 1:15 pm
Forum: Hardware
Topic: Uber simple no PC ECU
Replies: 4
Views: 673

Re: Uber simple no PC ECU

I'm trying to simulate the 555 in a monostable pulse configuration. I've seen designs that use a crank pulse to trigger a monostable 555, which drives the injector. As a baby step, I'm trying to get a monostable simulation working, which I then plan to modify into a variety of circuits that I've see...
by kb1gtt
Tue Jun 16, 2020 9:26 am
Forum: Hello World
Topic: Hello from germany
Replies: 21
Views: 1315

Re: Hello from germany

@kb1gtt This is not exactly what I meant. Attached you will find a breakout adapter, For us we generally only hook up to an ECU to migrate it. The board we have uses pigtails to connect to the ECU and fuses as your switches. Our board is much lower cost and no were near as fancy and doesn't use tho...
by kb1gtt
Mon Jun 15, 2020 4:48 pm
Forum: Hello World
Topic: Hello from germany
Replies: 21
Views: 1315

Re: Hello from germany

I do not recognize the connector. Should I recognize it?

Perhaps you mean this break out board.
https://rusefi.com/forum/viewtopic.php?f=4&t=454
by kb1gtt
Sun Jun 14, 2020 11:41 pm
Forum: Железо
Topic: 555 ЭБУ
Replies: 1
Views: 291

Re: 555 ЭБУ

Hmmm, that's interesting that it worked at all. It's basically fixed pulsewidth. You dump more fuel by increasing RPM. So probably really rich at low with low load, and very lean when at high loads. This looks much more promising. post-128353-0-37278200-1394812154.jpg post-128353-0-98727600-13948119...
by kb1gtt
Sun Jun 14, 2020 9:55 am
Forum: Hardware
Topic: PWM Fuel Pump
Replies: 4
Views: 159

Re: PWM Fuel Pump

I think the prototype could be done with FSIO. Then once it's working, it could be done better with code changes.
by kb1gtt
Thu Jun 11, 2020 9:04 am
Forum: Hardware
Topic: Uber simple no PC ECU
Replies: 4
Views: 673

Uber simple no PC ECU

Can a really simple, no PC ECU be created? Think screw driver programmed ECU. In slack kb1gtt commented about a 555 based ECU. mck1117 mentioned the bosch D-jetronic was a discrete components ECU. I see the D-jetronic is fairly well defined in the below. link. https://www.sw-em.com/bosch_d-jetronic_...
by kb1gtt
Tue Jun 09, 2020 12:48 pm
Forum: Hardware
Topic: MicroRusEFI, not recognised by computer? [Update: driver issue]
Replies: 37
Views: 2147

Re: MicroRusEFI, not recognised by computer?

Is the console windows or other platform? I know Java is multiplatform but knowing the platform is useful information.
by kb1gtt
Mon Jun 08, 2020 12:12 am
Forum: Software
Topic: GDI - High Pressure Fuel Pump Control
Replies: 12
Views: 5740

Re: GDI - High Pressure Fuel Pump Control

Yeah the pumps can be a pain. I understand that you can typically over drive the pump which simplifies it but at the cost of shorter pump life and lost hp. For now there is a flow bench that uses a brake pump to generate pressure. The proto PCB had been getting broken on the east coast then repaired...
by kb1gtt
Fri Jun 05, 2020 7:20 pm
Forum: Hello World
Topic: Hello from germany
Replies: 21
Views: 1315

Re: Hello from germany

Pleasure to hear from you. Those are some nice tools. If you get me dimensions for your connector, I can help make a breakout board. Do you have an electrical person who is looking to do PCB stuff? If not I can do the breakout board. However if you have an electrical who is looking to learn PCB desi...
by kb1gtt
Fri Jun 05, 2020 11:14 am
Forum: Hardware
Topic: Proteus - Waterproof, High-feature ECU!
Replies: 107
Views: 22198

Re: Proteus - Waterproof, High-feature ECU!

Finding and following the MFG's torque spec on the screws is probably a good idea. Probably also a good idea to only install those screws once. That would likely minimize the connector plastic from cracking. Once the torque spec is found, I might suggest adding a torque note to the silk, so it's eas...
by kb1gtt
Fri Jun 05, 2020 9:54 am
Forum: Hello World
Topic: Hello from germany
Replies: 21
Views: 1315

Re: Hello from germany

The wiki page is currently migrating, there may be an updated version of the below link. I know this link so it is what I'll provide. It details how to create the self generated cam and crank signals to the cam and crank decoder pins. https://rusefi.com/wiki/index.php?title=Manual:Software:User/en#r...
by kb1gtt
Fri Jun 05, 2020 1:00 am
Forum: Hardware
Topic: Proteus - Waterproof, High-feature ECU!
Replies: 107
Views: 22198

Re: Proteus - Waterproof, High-feature ECU!

I've not looked at it. mck1117 is usually fairly solid in his design process. A quick look seems good to me. I see things larger than 0805 are flying leads, which I believe to be good thermal design. I probably would have put a fudical closer to the STM32 to help the PCB assemblers. The X,Y toleranc...
by kb1gtt
Thu Jun 04, 2020 8:06 pm
Forum: Hello World
Topic: Hello from germany
Replies: 21
Views: 1315

Re: Hello from germany

Oh, also perhaps worth a mention. We have made many adapter PCB's which are handy for interfacing with an OEM harness. Basically get an extra ECU with a pig tail of wire from the salvage yard. Then remove the connector from the ECU. Then install that connector into a breakout board. Then wire the br...
by kb1gtt
Thu Jun 04, 2020 7:58 pm
Forum: Hello World
Topic: Hello from germany
Replies: 21
Views: 1315

Re: Hello from germany

Great to hear about it. I think it would be the first 3 cyl. Looks like an interesting motor. Should make a good platform for experimentation.
by kb1gtt
Thu Jun 04, 2020 10:10 am
Forum: Software
Topic: Feature Requests - Feature Bounty Program
Replies: 17
Views: 6727

Re: Feature Requests - Feature Bounty Program

A key difference with rusEFI is that rusEFI knows what happens in the middle. With ECU manipulation you are trying to control an unknown. The general process is something like this. inputs --> logic, physics and math --> outputs vs inputs --> Top secret not for your eyes black magic specifically and...
by kb1gtt
Thu Jun 04, 2020 12:37 am
Forum: Software
Topic: Feature Requests - Feature Bounty Program
Replies: 17
Views: 6727

Re: Feature Requests - Feature Bounty Program

Oh, was that the question, if we could piggy back the signals doing signal manipulation to make the OEM ECU dump more fuel, etc. I've seen that with I think it was UTec. Holly crap that's an easy way to trash your engine. I suggest avoiding that type of thing. You would be better off putting banana'...
by kb1gtt
Wed Jun 03, 2020 11:13 pm
Forum: Hardware
Topic: Ford 60 pin EEC-IV connector breakout board
Replies: 43
Views: 2825

Re: Ford 60 pin EEC-IV connector breakout board

I figured width was cheap, and it allows us to validate the placement of the connector in the case.
by kb1gtt
Wed Jun 03, 2020 11:09 pm
Forum: Software
Topic: Feature Requests - Feature Bounty Program
Replies: 17
Views: 6727

Re: Feature Requests - Feature Bounty Program

This is not really a software issue, it's more a hardware issue. See this thread https://rusefi.com/forum/viewtopic.php?f=4&t=454
by kb1gtt
Wed Jun 03, 2020 4:01 pm
Forum: Hardware
Topic: Ford 60 pin EEC-IV connector breakout board
Replies: 43
Views: 2825

Re: Ford 60 pin EEC-IV connector breakout board

Say 1/3 the vertical, would that be good? AKA keep the 2 mounting screws, and keep the connector that is there, but also keep the costs low.
by kb1gtt
Wed Jun 03, 2020 10:52 am
Forum: Hardware
Topic: Ford 60 pin EEC-IV connector breakout board
Replies: 43
Views: 2825

Re: Ford 60 pin EEC-IV connector breakout board

Breakout board updated. It's over sized right now, as I'm fairly sure the long term goal is to put MRE or similar into the OEM enclosure. So this breakout includes the mounting holes and is a full sized PCB that would fit inside an OEM enclosure. The traces are much fatter than they were. Is there a...
by kb1gtt
Tue Jun 02, 2020 6:17 pm
Forum: Hardware
Topic: Ford 60 pin EEC-IV connector breakout board
Replies: 43
Views: 2825

Re: Ford 60 pin EEC-IV connector breakout board

Some progress on the 60 pin break out. See below. https://github.com/rusefi/rusefi/tree/master/hardware/Breakout_60pin_EEC-IV-Connector This needs some validation. Can anyone print this or some how validate it against the real world before spinning a PCB? How many amps does each pin need? I was able...