Search found 3759 matches

by kb1gtt
Mon May 04, 2020 12:16 am
Forum: Dev: Hardware
Topic: DEAD DESIGN rusEfi own wide band controller board add-on using CJ125
Replies: 364
Views: 353583

Re: rusEfi own wide band controller board add-on using CJ125

Some history, -- Bosch made WO2 sensors and chips to interface there proprietary magic with an MCU. -- I think Waltech was the first to make a real open source WO2 circuit. It uses op-amps, and mostly discrete components, and mimics what the Bosch chip does. Waltech's stuff is not OEM and not AEQ ce...
by kb1gtt
Sun May 03, 2020 11:47 pm
Forum: Dev: Hardware
Topic: Prometheus - NEW compact ECU shield!
Replies: 160
Views: 193342

Re: Prometheus - NEW compact ECU shield!

Yeah, his DSP stuff for Knock, VR, and some other features like that are some really cool stuff.
by kb1gtt
Sat May 02, 2020 10:36 pm
Forum: Dev: Hardware
Topic: MREAdapter72 pnp Miata MX5 NB2
Replies: 17
Views: 17114

Re: MREAdapter72 pnp Miata MX5 NB2

silk screen can be added after the fact. How's your painting skills?

Image
by kb1gtt
Sun Apr 26, 2020 1:38 pm
Forum: Dev: Hardware
Topic: jlcpcb injector driver
Replies: 5
Views: 5912

Re: jlcpcb injector driver

Do we have good thermal test data for TLE8888? I'm probably attempting to over-design, but my thoughts are below. The below is a fully protected MOSFET with over voltage clamping. It's rated for 3.5A, and has 120 mOhm for Rds. https://jlcpcb.com/parts/componentSearch?searchTxt=C146561 This one is sl...
by kb1gtt
Sat Apr 18, 2020 1:30 pm
Forum: Dev: Hardware
Topic: let's choose an enclosure
Replies: 121
Views: 121382

Re: let's choose an enclosure

I confirm, it's a 2D drawing, which is fairly good and could be used to make a 3D model.
by kb1gtt
Fri Apr 17, 2020 10:26 am
Forum: You and your build
Topic: Making my 190e More Fun (M111 Twincharged Swap) #57 [Hellen]
Replies: 103
Views: 94431

Re: Making my 190e More Fun (M111 SC Swap)

I like rusEFI flame thrower more than Elon musk flame thrower.
by kb1gtt
Wed Apr 15, 2020 5:27 pm
Forum: You and your build
Topic: 1984 Toyota Celica GT 12A ROTARY SWAP ~ MicroRusEFI
Replies: 26
Views: 20870

Re: 1984 Toyota Celica GT Liftback 2.4L 22RE ~ MicroRusEFI

I understand the lack of this feature is just a software effort. It can exist, but software folks have not bumped it up in priority for a variety of reasons. I suspect this would answer Sam's question.
by kb1gtt
Wed Apr 15, 2020 4:17 pm
Forum: You and your build
Topic: 1984 Toyota Celica GT 12A ROTARY SWAP ~ MicroRusEFI
Replies: 26
Views: 20870

Re: 1984 Toyota Celica GT Liftback 2.4L 22RE ~ MicroRusEFI

MRE has 4 individual injector drivers. We expect the driver chip can drive one highZ injector per output, at 1 amp of current. It is unknown if you could batch them consuming 2A for 2 injector driven by the same output. We expect it would go into thermal overload and shut down when ambient is hot, y...
by kb1gtt
Wed Apr 15, 2020 1:34 pm
Forum: You and your build
Topic: 1984 Toyota Celica GT 12A ROTARY SWAP ~ MicroRusEFI
Replies: 26
Views: 20870

Re: 1984 Toyota Celica GT Liftback 2.4L 22RE ~ MicroRusEFI

Correct me if I'm wrong, but I believe the 12A motor has 2 rotors, and you desire to have 4 injectors. You hope that the injectors can be staged. AKA at low HP, you use only one injector per cyl, but then at high HP you use 2 injectors per cyl. Is that what you are asking?
by kb1gtt
Sun Apr 12, 2020 10:28 pm
Forum: Dev: Hardware
Topic: Ford 60 pin EEC-IV connector breakout board
Replies: 52
Views: 47068

Re: Ford 60 pin EEC-IV connector breakout board

Works better when you whack it against a tree, but I guess in NJ they don't like tree's. I see they cut down the one in your font walk way. So you did the best you could with what you had.
by kb1gtt
Sun Apr 12, 2020 12:56 am
Forum: Dev: Software
Topic: PID autotune
Replies: 13
Views: 14753

Re: PID autotune

Did you implement the Ziegler and Nichols method for the PID's that come out of the relay auto-tune method? I'll have to check a process controller I use at work in a temperature chamber we have. I recall it's PID's were very low P, with high I and even higher D. The PID's were crazy, but the end re...
by kb1gtt
Sat Apr 11, 2020 3:27 pm
Forum: Misc
Topic: Rigol DS1054Z ds1054 oscilloscope club
Replies: 6
Views: 7961

Re: Rigol DS1054Z ds1054 oscilloscope club

@andreika posted this alternative in slack.
https://www.teuniz.net/DSRemote/
by kb1gtt
Sat Apr 11, 2020 3:26 pm
Forum: Misc
Topic: Rigol DS1054Z ds1054 oscilloscope club
Replies: 6
Views: 7961

Re: Rigol DS1054Z ds1054 oscilloscope club

software is obtained from here
https://www.rigolna.com/download/
by kb1gtt
Sat Apr 11, 2020 10:22 am
Forum: Dev: Software
Topic: PID autotune
Replies: 13
Views: 14753

Re: PID autotune

This page seems to be a quicker way of explaining the relay auto-tune method. PDF copy attached.
https://pages.mtu.edu/~tbco/cm416/Atune.html
by kb1gtt
Fri Apr 10, 2020 11:18 pm
Forum: Dev: Software
Topic: PID autotune
Replies: 13
Views: 14753

Re: PID autotune

This was posted by @mck1117 in slack, it's being posted here to keep an archived copy of it longer term. Slack goes away after a while. The attached is a printed PDF copy of the below link.
https://warwick.ac.uk/fac/cross_fac/iatl/reinvention/archive/volume5issue2/hornsey
by kb1gtt
Mon Apr 06, 2020 3:36 pm
Forum: Dev: Hardware
Topic: Rusefi driving of ecu relay
Replies: 5
Views: 5228

Re: Rusefi driving of ecu relay

software controlled always on when rusEFI is on. AKA FSIO could do different logic if so required. Am I correct about that?
by kb1gtt
Sun Apr 05, 2020 3:57 pm
Forum: You and your build
Topic: Micro Rusefi for a Renault K4M engine #58
Replies: 50
Views: 35478

Re: Micro Rusefi for a Renault KM4 engine

I understand the rusEFI sticker gives you an extra 10 HP.
by kb1gtt
Sun Apr 05, 2020 3:56 pm
Forum: Dev: Hardware
Topic: hammer / press fit headers
Replies: 1
Views: 2306

Re: hammer / press fit headers

I lack personal experience. I understand they work well, but are often considered costly. I understand you can't just smash them into your existing via's, you have to hold specific tolerances. As well once you smash it in there, you can not remove and replace with solder. So it's a one time deal. So...
by kb1gtt
Wed Apr 01, 2020 9:40 am
Forum: Dev: Software
Topic: Dwell problem during starting ? No - caution at flywheel setup
Replies: 37
Views: 22610

Re: Dwell problem during starting ? No - caution at flywheel setup

GitHub issue tracker with relevant screen shot.
by kb1gtt
Mon Mar 30, 2020 3:31 am
Forum: Dev: Hardware
Topic: Ford 60 pin EEC-IV connector breakout board
Replies: 52
Views: 47068

Re: Ford 60 pin connector breakout board

@firebat45 I like your way of saying hello. Good to see the contribution.

If you have any questions about KICAD, feel free to ask. I'd be happy to give you some pointers etc. I find that learning the keyboard shortcuts is really helpful.
by kb1gtt
Wed Mar 25, 2020 12:59 am
Forum: Dev: Hardware
Topic: EFI for small engines
Replies: 118
Views: 112091

Re: EFI for small engines

Hmmm, the better half would probably be happier with me if I made this one work. It hasn't started for years, but has been dry and it used to work, so it should now. It has some carb problem last time it ran. Basically I had to run it as the floats would overflow if it was not running. It's already ...
by kb1gtt
Tue Mar 24, 2020 12:58 am
Forum: Dev: Hardware
Topic: Hellen ECU :: preview and rumours
Replies: 15
Views: 24857

Re: Hellen ECU :: preview and rumours

Wow your PCB design software 3D CGI is much better than most that I've seen.
by kb1gtt
Mon Mar 23, 2020 10:36 am
Forum: Dev: Hardware
Topic: EFI for small engines
Replies: 118
Views: 112091

Re: EFI for small engines

Ebay say the black and yellow HIT 4kW tig / generator noted above will be here with an Estimated delivery Fri, Mar 27 - Fri, Apr 03. I would like to figure out how to make this electric start, perhaps a drill and socket. Any suggestions would be welcome. I would also like to figure out how to add an...
by kb1gtt
Sun Mar 22, 2020 12:02 pm
Forum: Dev: Hardware
Topic: EFI for small engines
Replies: 118
Views: 112091

Re: EFI for small engines

I lack motivation as my 15 year old snow blower starts on the 2nd pull in the dead of winter. It's reliable simple, and just plain works. I see little advantage of adding many new components that lower the MTBF. So I'm lacking motivation. I'm glad to hear you have a solution, it's good to hear peopl...
by kb1gtt
Sun Mar 22, 2020 10:43 am
Forum: Dev: Hardware
Topic: EFI for small engines
Replies: 118
Views: 112091

Re: EFI for small engines

@jbiplane It would be nice if you contributed to the effort instead of just trying to get us to provide free labor for you.
by kb1gtt
Sun Mar 22, 2020 3:29 am
Forum: Dev: Hardware
Topic: EFI for small engines
Replies: 118
Views: 112091

Re: EFI for small engines

A hardware platform is required to answer many design questions.
by kb1gtt
Fri Mar 20, 2020 8:35 am
Forum: Dev: Hardware
Topic: EFI for small engines
Replies: 118
Views: 112091

Re: EFI for small engines

Hmmm, this one is closer to my tolerable price range. It would be great if I saw an oil filter. It still seems larger than I need. Can I find a smaller / cheaper one? https://www.amazon.com/HIT-Surge-Generator-Stick-Welder/dp/B07RTGR3LG/ref=sr_1_15?dchild=1&keywords=engine+driven+tig&qid=158...
by kb1gtt
Fri Mar 20, 2020 8:18 am
Forum: Dev: Hardware
Topic: EFI for small engines
Replies: 118
Views: 112091

Re: EFI for small engines

I've seen people do something like this for a DIY portable welder http://veggear.blogspot.com/2009/06/home-made-diy-lawnmower-alternator.html Are there any gas powered welders that have the above basic setup? I find the below but that's above my desired $ range. https://www.amazon.com/dp/B01M5E5KTQ?...
by kb1gtt
Fri Mar 20, 2020 6:48 am
Forum: Dev: Hardware
Topic: EFI for small engines
Replies: 118
Views: 112091

Re: EFI for small engines

I don't think our diy quality controls match Ford's quality controls. There are many difficult situations to deal with. I suggest doing what was and still is the dominant technology for TPS sensors.