Search found 248 matches

by mck1117
Fri Dec 06, 2019 1:39 am
Forum: Hello World
Topic: Hello from Spain!
Replies: 4
Views: 122

Re: Hello from Spain!

Are those tables the pulse width vs. flow rate, or the pulse width vs. the fuel QUANTITY per pulse? Because to me, they look like quantity per pulse. I don't know of any injectors that flow fuel more quickly if you open them for longer.
by mck1117
Fri Dec 06, 2019 1:12 am
Forum: Hardware
Topic: Proteus - Waterproof, High-feature ECU!
Replies: 5
Views: 96

Proteus - Reserved

<reserved for future updates>
by mck1117
Fri Dec 06, 2019 1:10 am
Forum: Hardware
Topic: Proteus - Waterproof, High-feature ECU!
Replies: 5
Views: 96

Proteus - Build & Test Log

Project progress will be logged below:

2019-12-04: Boards, BOM and connectors are in-hand. Assembly, testing, and running engine(s) soon!
by mck1117
Fri Dec 06, 2019 1:09 am
Forum: Hardware
Topic: Proteus - Waterproof, High-feature ECU!
Replies: 5
Views: 96

Proteus - Documentation

GitHub repository for board design: https://github.com/mck1117/proteus/

Readme on GitHub: https://github.com/mck1117/proteus/blob ... /readme.md

v0.1 Schematic, gerbers, bill-of-materials, and board PDF: https://github.com/mck1117/proteus/tree ... xport/v0.1

Image
by mck1117
Fri Dec 06, 2019 1:09 am
Forum: Hardware
Topic: Proteus - Waterproof, High-feature ECU!
Replies: 5
Views: 96

Proteus - Waterproof, High-feature ECU!

Hello everyone! Introducing rusEfi's most fully-featured ECU: Proteus (photos to be updated as boards are assembled/tested) https://imgur.com/BUWSPq8.jpg https://imgur.com/2PUeeTA.jpg Why does this board exist? I have an LS-swapped Volvo 240, and the ECU sits in the front corner of the engine bay. W...
by mck1117
Mon Nov 11, 2019 11:31 pm
Forum: Hardware
Topic: Sprut - A newbies try to design an ECU
Replies: 72
Views: 3730

Re: Sprut - A newbies try to design an ECU

Do you have SWD wired? If so you can attach a debugger and see what it's doing (or not doing).
by mck1117
Mon Nov 11, 2019 11:28 pm
Forum: Software
Topic: E85 / Flex fuel logic
Replies: 11
Views: 982

Re: E85 / Flex fuel logic

What I haven't been able to figure out is what the FF sensor actually does that a wideband exhaust sensor couldn't do better. For an OEM it might let them avoid a previously-expensive wideband system, avoid raising long-term-fuel-trim errors, and perhaps optimize the power vs emissions if they know...
by mck1117
Wed Oct 09, 2019 2:18 am
Forum: Hardware
Topic: Sprut - A newbies try to design an ECU
Replies: 72
Views: 3730

Re: Sprut - A newbies try to design an ECU

Does Mouser EU not ship to Sweden? They have a few thousand F405RG in stock.

@960 may have tips for EU sourcing of components.
by mck1117
Wed Oct 09, 2019 1:29 am
Forum: Hardware
Topic: Sprut - A newbies try to design an ECU
Replies: 72
Views: 3730

Re: Sprut - A newbies try to design an ECU

InternetAthiest wrote:
Wed Oct 09, 2019 1:22 am
Yeah, going to re-route it for LQFP64. Thinking of using the STM32F412RET6 instead.
Any reason for the F412 over the F405/407? The STM32F405RGT6 is only $4 more, and is fully supported by rusEfi out of the box.
by mck1117
Tue Oct 08, 2019 11:38 pm
Forum: Hardware
Topic: Sprut - A newbies try to design an ECU
Replies: 72
Views: 3730

Re: Sprut - A newbies try to design an ECU

Otherwise the G4 series has a different pin out but has more flash but at that point I'd rather up size to LQFP64. Now, SWD seems kinda sweet to have but would require the up size. It would also allow me to add status LEDs and CAN without impacting current I/O. Seems worth re-routing for those feat...
by mck1117
Tue Oct 08, 2019 10:27 am
Forum: Hardware
Topic: Sprut - A newbies try to design an ECU
Replies: 72
Views: 3730

Re: Sprut - A newbies try to design an ECU

The STM32F070CBT comes from factory with the capability of flashing firmware via USB without changing the bootloader. This means that I do not need a SWD header. While technically true, one of the huge advantages of the whole STM32 family is that you can attach a debugger, set breakpoints, inspect ...
by mck1117
Tue Oct 08, 2019 10:16 am
Forum: Hardware
Topic: Sprut - A newbies try to design an ECU
Replies: 72
Views: 3730

Re: Sprut - A newbies try to design an ECU

i believe RAM is your biggest risk. I would strongly recommend looking into rusEfi RAM and flash usage before ordering this PCB. I agree - the F070CB is not enough chip to run rusEfi. There are a few reasons it isn’t enough: It has no FPU. Since the firmware relies heavily on floating point math, p...
by mck1117
Sat Oct 05, 2019 2:07 am
Forum: Hardware
Topic: microRusEfi
Replies: 187
Views: 14252

Re: microRusEfi

Three microRusEfi v0.3 boards are done! All started and ran my car great, and seem to behave identical to the v0.1 board I've been running.

Image
by mck1117
Sun Sep 29, 2019 11:42 pm
Forum: Hardware
Topic: rusEFI display
Replies: 54
Views: 7846

Re: rusEFI display

My Focus has stepper gauges (tach, speed, temp, fuel), and zeroes the gauges when you unlock the car. A normal driver will probably never see it happen.
by mck1117
Sun Sep 22, 2019 10:29 am
Forum: Software
Topic: 101 on Matlab/Simulink
Replies: 11
Views: 2063

Re: 101 on Matlab/Simulink

I'm now extremely curious if you can get Scilab to compile your block diagram in to a program, or even to a "normal" script output. Because if you can, we can design the ECU in Scilab.
by mck1117
Wed Sep 11, 2019 9:30 pm
Forum: Your car & your engine
Topic: 1990 Geo Storm GSI - Advice/Suggestions? #18
Replies: 272
Views: 28198

Re: 1990 Geo Storm GSI - Advice/Suggestions? #18

Ok - those will be the same tune, other than ETB stuff (which isn't really useful to us anyway). I know I certainly have the VE/ignition tables from that engine handy, since mine is a 2002-ish 5.3 flex fuel van engine (LM7/L59/LM4/L33 all have the same VE table). I'll have to see if I can export the...
by mck1117
Wed Sep 11, 2019 8:00 pm
Forum: Hardware
Topic: Frankenso - ECU shield compatible with OEM case / official
Replies: 536
Views: 121226

Re: Frankenso - ECU shield compatible with OEM case / official

atntpt wrote:
Tue Sep 10, 2019 8:57 pm
Testing on bench , I noticed if I power it via discovery usb the 5v line also varies .
I understand that you're testing on the bench, but how are the sensors connected? Are sensors connected at all?
by mck1117
Tue Sep 10, 2019 9:08 pm
Forum: Your car & your engine
Topic: 1990 Geo Storm GSI - Advice/Suggestions? #18
Replies: 272
Views: 28198

Re: 1990 Geo Storm GSI - Advice/Suggestions? #18

I can certainly find/dump a stock 4.8 or 5.3 (or whatever) tune. Which cam is in each car? Stock GM truck?
by mck1117
Tue Sep 10, 2019 8:06 pm
Forum: Hardware
Topic: Frankenso - ECU shield compatible with OEM case / official
Replies: 536
Views: 121226

Re: Frankenso - ECU shield compatible with OEM case / official

atntpt wrote:
Tue Sep 10, 2019 7:11 pm
Can anyone help me understand why do i have this noise on analog inputs ?
The frequency of the noise seams to sync with some kind of led blink or something
What does your wiring setup look like? What sensors are those connected to? How are they grounded? How is the ECU grounded?
by mck1117
Tue Sep 10, 2019 6:14 pm
Forum: Your car & your engine
Topic: 1990 Geo Storm GSI - Advice/Suggestions? #18
Replies: 272
Views: 28198

Re: 1990 Geo Storm GSI - Advice/Suggestions? #18

By the way, I have an HPTuners license (and interface), so I can at least read GM ECUs, and view tunes uploaded by others to the HPT website. So I can rip particular maps (VE, injector compensation, etc) out of factory tunes if you're interested.
by mck1117
Mon Sep 09, 2019 11:15 pm
Forum: Your car & your engine
Topic: 1990 Geo Storm GSI - Advice/Suggestions? #18
Replies: 272
Views: 28198

Re: 1990 Geo Storm GSI - Advice/Suggestions? #18

On #2: Russian is mostly correct, but some stuff can be close enough to get the engine at least running (though you may have to copy values over manually). The VE table for the GM ECUs does the same thing as ours, and I'd bet is certainly within 10% of what's "correct" for rusEfi to run the same eng...
by mck1117
Thu Aug 22, 2019 9:36 pm
Forum: Hardware
Topic: ECU with redundance for Aircraft use
Replies: 5
Views: 489

Re: ECU with redundance for Aircraft use

Preface: I hold a US Private Pilots License and hang out with a bunch of aerospace engineers, so I'm familiar with how the aerospace world works with respect to engineering and manufacturing. Is it possible to use on one engine 2 Ecu? If one fault second understand and continue correct operation? It...
by mck1117
Wed Aug 21, 2019 9:49 pm
Forum: Your car & your engine
Topic: 2004 Mazda MX5 1.8 VVT #50
Replies: 163
Views: 5893

Re: 2004 Mazda MX5 1.8 VVT #50

Why is it difficult to control idle with a pre-SC TB? Every OEM supercharger install on the planet puts the throttle before the blower, and doesn't have problems with idle control. What's wrong with putting the throttle before the SC, and running a normal vacuum-operated bypass valve in the supercha...
by mck1117
Mon Aug 19, 2019 9:33 am
Forum: Hardware
Topic: microRusEfi
Replies: 187
Views: 14252

Re: microRusEfi

Also I understand D1 gets hot. Perhaps that would have some thermal via's. Yes - D1 is also dissipating maybe 1/10 watt, but it has almost no thermal conduction to the case, and almost all the conduction it has is to the already-hot Q1. Probably a better plan to investigate using a pfet instead, si...
by mck1117
Mon Aug 19, 2019 5:49 am
Forum: Hardware
Topic: microRusEfi
Replies: 187
Views: 14252

Re: microRusEfi

Q1 doesn't switch. The tle8888 is using Q1 as an external linear regulator to get the dissipation out of the tle8888 itself, then doing the precise 6v -> 5v regulation internally. Per the tle8888 datasheet, page 58: A linear pre-regulator with an external logic level power MOSFET is implemented to k...
by mck1117
Mon Aug 19, 2019 4:17 am
Forum: Hardware
Topic: microRusEfi
Replies: 187
Views: 14252

Re: microRusEfi

Stm32 does. 45-50c internal stm32 temperature is consistent with what I've seen running on 12v, sitting on carpet with only the bottom half of the case. My board pulls just shy of 300mA. So Q1 is dissipating (12v-6v) * 300mA = 1.8W. The 8888 should be dissipating around 0.3 watt in its regulator, pl...
by mck1117
Thu Aug 15, 2019 9:30 pm
Forum: Your car & your engine
Topic: 1991 Volvo 240 Racecar #49
Replies: 3
Views: 498

Re: 1991 Volvo 240 Racecar #49

I suppose I should provide an update on this car: July 17 I took the car to a track day, running on Frankenso. Other than identifying a (now fixed) trigger performance bug, the ECU did fine. The car had some pretty serious windshield fogging problems since it was raining, but that wasn't rusEfi's fa...
by mck1117
Thu Aug 15, 2019 8:28 pm
Forum: Hardware
Topic: microRusEfi
Replies: 187
Views: 14252

Re: microRusEfi

This got posted on Facebook, but not in this thread! microRusefi has now run an engine! Last week I successfully wired and started my Volvo b230 on microRusefi serial number 1. https://www.youtube.com/watch?v=YD1suLdczv8 Since the engine was already running on Frankenso, the tune ported over with al...
by mck1117
Thu Aug 15, 2019 8:21 pm
Forum: Hardware
Topic: microRusEfi
Replies: 187
Views: 14252

Re: microRusEfi

I've left mine running for several days with the trigger simulator running the whole time without issue! Powered from +12v.
by mck1117
Tue Aug 13, 2019 8:33 pm
Forum: Hardware
Topic: rusEfi own wide band controller board add-on using CJ125
Replies: 301
Views: 28234

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

Internal ADC is interesting - it's also not bosch, so documentation is far easier to find, and it's far easier to actually buy one (Mouser has them in stock). And they're cheaper: $6.55 in single quantities.