Search found 138 matches

by mobyfab
Thu Nov 07, 2019 9:38 pm
Forum: Hardware
Topic: Honda CBR600RR fuel injection
Replies: 48
Views: 2351

Re: Honda CBR600RR fuel injection

russian wrote:
Thu Sep 19, 2019 10:18 pm
mobyfab wrote:
Sat Jun 29, 2019 8:31 pm
I have the full manuals/schematics if needed.
is that because... you maybe have a 2007 cbr600rr yourself?!
Yes ;)
russian wrote:
Thu Sep 19, 2019 10:39 pm
38770-N1A-D11 would be a tuneable OEM Honda part for this engine?
Yes
by mobyfab
Fri Jul 05, 2019 9:23 pm
Forum: Hardware
Topic: Honda CBR600RR fuel injection
Replies: 48
Views: 2351

Re: Honda CBR600RR fuel injection

The trigger sequence is a bit funny, there's an Y shaped CMP sensor and a 12 teeth CKP sensor. With VR sensor and MAX9926 chip 85ms watchdog/timeout we will have an issue here unless this engine has relatively high cranking RPM. What is typical cranking RPM for bike engines? around 600 i'd say... i...
by mobyfab
Sat Jun 29, 2019 8:31 pm
Forum: Hardware
Topic: Honda CBR600RR fuel injection
Replies: 48
Views: 2351

Re: Honda CBR600RR fuel injection

What year is the engine?

I have the full manuals/schematics if needed.

The trigger sequence is a bit funny, there's an Y shaped CMP sensor and a 12 teeth CKP sensor.

See viewtopic.php?f=3&t=1030
by mobyfab
Wed Jan 09, 2019 8:32 pm
Forum: Software
Topic: More table needed
Replies: 10
Views: 908

Re: More table needed

mk e wrote:
Wed Jan 09, 2019 12:34 am
mobyfab wrote:
Tue Jan 08, 2019 8:29 pm
Stock and HRC ECUs use 7x16 tables, I doubt you'd need more than the current ones.
MAF setups I assume?
TPS/MAP hybrid
by mobyfab
Wed Jan 09, 2019 8:28 pm
Forum: Hardware
Topic: DENSO's A/F Sensors
Replies: 6
Views: 550

Re: DENSO's A/F Sensors

Given that the Bosch LSU 4.9 is now so common and cheap does it make sense to spend time looking into something more custom and incapable of the same AFR range? To me an onboard interface for an LSU 4.9 makes the most sense given that most of the aftermarket uses them and a good proportion of the O...
by mobyfab
Tue Jan 08, 2019 8:29 pm
Forum: Software
Topic: More table needed
Replies: 10
Views: 908

Re: More table needed

Stock and HRC ECUs use 7x16 tables, I doubt you'd need more than the current ones.
by mobyfab
Fri Jan 04, 2019 10:28 am
Forum: Hardware
Topic: rusEfi Use Scenarios for Next Hardware Iteration
Replies: 44
Views: 2528

Re: rusEfi Use Scenarios for Next Hardware Iteration

OEM ECUs do store all of this in backup sram

Flash is a big no as it stops code execution while writing/erasing, and uses 1k sectors minimum.
by mobyfab
Thu Jan 03, 2019 10:40 pm
Forum: Hardware
Topic: rusEfi Use Scenarios for Next Hardware Iteration
Replies: 44
Views: 2528

Re: rusEfi Use Scenarios for Next Hardware Iteration

One more idea: backup power?

There's always constant power available on vehicle connector, let's use this for backup sram/rtc.
We could potentially store some data such as long term fuel trim.
by mobyfab
Thu Jan 03, 2019 4:48 pm
Forum: Misc
Topic: Is stm32f4 the right chip?
Replies: 91
Views: 14978

Re: Is stm32f4 the right chip?

There's no point in evaluating Kinetis chips for now, since they are pretty much the same thing minus driver/OS support.
Just like most other Cortex-M mcu.

For the next few years/decade the STM32 range is perfectly suited for this job.

just my $0.02
by mobyfab
Thu Jan 03, 2019 2:23 pm
Forum: Hardware
Topic: DENSO's A/F Sensors
Replies: 6
Views: 550

Re: DENSO's A/F Sensors

Equivalents:
Bosch 13493
Borgwarner OS1091
NTK 24809
by mobyfab
Thu Jan 03, 2019 11:28 am
Forum: Hardware
Topic: Search for power supply chip
Replies: 36
Views: 1920

Re: Search for power supply chip

960 are you trying to make by any chance? Do you draft to share? Hi! Yes, I have given it a try :-) I have sent it to kb1gtt on mail, can send it to you as well. About power-supply, why dont we use a proper Automotive IC? I am currently drawing the schematic for a Bosch CY320 http://www.bosch-semic...
by mobyfab
Mon Dec 31, 2018 11:55 am
Forum: Hardware
Topic: rusEfi Use Scenarios for Next Hardware Iteration
Replies: 44
Views: 2528

Re: rusEfi Use Scenarios for Next Hardware Iteration

Very useful info :)

I guess we'd just have to put some space between the pins that will carry > 1A.
Most pins will only be for signal anyway.

For inductive loads we can simply use more than one pin if needed (but I doubt that would make any difference for most things)
by mobyfab
Mon Dec 31, 2018 1:06 am
Forum: Hardware
Topic: rusEfi Use Scenarios for Next Hardware Iteration
Replies: 44
Views: 2528

Re: rusEfi Use Scenarios for Next Hardware Iteration

AEM (and some others) use straight pin headers on the edge of the boards, using both layers.
With the average width of an ECU, this gives use many, many pins (100+) to play with.
by mobyfab
Sun Dec 30, 2018 7:07 pm
Forum: Hardware
Topic: rusEfi Use Scenarios for Next Hardware Iteration
Replies: 44
Views: 2528

Re: rusEfi Use Scenarios for Next Hardware Iteration

russian wrote:
Sun Dec 30, 2018 4:04 pm
russian wrote:
Sun Dec 30, 2018 2:59 pm
Q2: what is this kind of connector called and how many amps does it handle?
Image
what is this kind of connector called and how many amps does it handle?
That's a standard right angle 0.1" pin header. It can handle 3 amp per pin continuously.
by mobyfab
Sun Dec 30, 2018 1:58 pm
Forum: Hardware
Topic: rusEfi Use Scenarios for Next Hardware Iteration
Replies: 44
Views: 2528

Re: rusEfi Use Scenarios for Next Hardware Iteration

I think the PnP solution using the factory connector is too hard to achieve for a broad range of cars and would detract from effort that could be used improving or upgrading the base hardware. To my mind having a universal ecu with flexibility in term of features that can be populated and using an ...
by mobyfab
Sun Dec 30, 2018 12:21 am
Forum: Hardware
Topic: Multichannel ADC instead of all analog circuitry (opamps, vr)
Replies: 13
Views: 920

Re: Multichannel ADC instead of all analog circuitry (opamps, vr)

so if I understand correctly, you want to move the ADC stuff from the STM32 to another chip? You'll never get rid of the analog circuitry because you still need protection and conditioning. PSOC is a specific implementation, no go. STM32F3 does PGAs, 25ns comparators and fast ADC, some 16 bits if ne...
by mobyfab
Sun Dec 30, 2018 12:16 am
Forum: Software
Topic: Software knock processing
Replies: 9
Views: 709

Re: Software knock processing

it uses about 30-35% cpu on my STM32F3. I am sampling at 115KHz, processing 1024 samples to FFT512 (256 bins). it should be around 15% cpu on the STM32F405. And if we don't want to cram it in to the main ECU's processor, it is probably much safer (for longevity and flexibility) to use a second micr...
by mobyfab
Sat Dec 29, 2018 6:01 pm
Forum: Software
Topic: Software knock processing
Replies: 9
Views: 709

Re: Software knock processing

You can read my code: https://github.com/fpoussin/MotoLink/blob/master/code/app/main.c#L460 it uses about 30-35% cpu on my STM32F3. I am sampling at 115KHz, processing 1024 samples to FFT512 (256 bins). it should be around 15% cpu on the STM32F405. Keep in mind you would need a dedicated ADC to samp...
by mobyfab
Sat Dec 29, 2018 12:22 pm
Forum: Hardware
Topic: 22mm Manhattan
Replies: 39
Views: 2258

Re: 22mm Manhattan

Errors should be handled in the tuning software on a laptop. A couple LEDs for a basic functions are fine, but not an LCD. An heartbeat LED and an error LED would be sufficient. There's an error? Plug your laptop to troubleshoot it. There's no PCB real-estate issue for now, but there will be at some...
by mobyfab
Sat Dec 29, 2018 1:21 am
Forum: Hardware
Topic: rusEfi Use Scenarios for Next Hardware Iteration
Replies: 44
Views: 2528

Re: rusEfi Use Scenarios for Next Hardware Iteration

it's pretty much in line with my suggestions for the last couple years :) It might help to use ASICs in the beginning, but their specialised aspect make them expensive and hard to source for individuals. I'm thinking about HIP9011 that can be done in software. (I've done it) "Smart" VR interfaces (M...
by mobyfab
Sat Dec 29, 2018 12:28 am
Forum: Misc
Topic: Haltech tour
Replies: 1
Views: 220

Haltech tour

Lots of interesting pictures, it's nice to see they are doing everything from scratch unlike some others.

http://www.speedhunters.com/2016/12/haltech-tour/
by mobyfab
Fri Dec 28, 2018 10:55 am
Forum: Hardware
Topic: 22mm Manhattan
Replies: 39
Views: 2258

Re: 22mm Manhattan

You need a base board with the *generic* stuff... Basically: power supply, mcu, analog filtering which power supply? we have a not cheap and lots of components power supply on the Frankenso, or is it some TI chip, or should it be an Infenion chip? Chips come and go. Suddenly it would be nice for po...
by mobyfab
Fri Dec 28, 2018 1:27 am
Forum: Software
Topic: Firmware developent status
Replies: 410
Views: 71097

Re: Firmware developent status

330€ back at launch :cry: LTO has changed a lot in 8.x, they fixed many bugs. In general GCC 8 makes more checks (and is more picky) but produces better code. No LTO text data bss dec hex filename 285012 5196 184704 474912 73f20 build/rusefi.elf LTO text data bss dec hex filename 266080 4212 185496 ...
by mobyfab
Fri Dec 28, 2018 1:06 am
Forum: Software
Topic: Firmware developent status
Replies: 410
Views: 71097

Re: Firmware developent status

GCC 7.3
14s with -O0 (default)
13s with -Os
10s with -Os and LTO

GCC 8.2
19s with -O0 (default)
18s with -Os
41s with -Os and LTO

Ryzen 1700@3.8Ghz on an SSD, running Linux
by mobyfab
Fri Dec 28, 2018 12:41 am
Forum: Hardware
Topic: 22mm Manhattan
Replies: 39
Views: 2258

Re: 22mm Manhattan

I disagree. A "mega board" has almost no uses besides development or purely universal, and is certainly not suited for PnP. What would be the point in having 8 coil and injector drivers with full circuits for a 4 cylinder engine with distributor? Not even talking about the lcd/gadget stuff or cost. ...
by mobyfab
Wed Dec 26, 2018 6:35 pm
Forum: Software
Topic: Firmware developent status
Replies: 410
Views: 71097

Re: Firmware developent status

I'm having trouble understanding why you need to sample map/maf/knock at 10KHz continuously, using a timer. You only need to sample these once per cylinder rotation. HIP outputs an integral... just sample it once when you are done integrating for each cylinder. (hold mode, pin low level) MAP/MAF can...
by mobyfab
Tue Dec 25, 2018 1:45 am
Forum: Software
Topic: Trigger System Redesign
Replies: 10
Views: 1000

Re: Trigger System Redesign

Excellent implementation :)

Russian, it's possible to integrate this while keeping the old system and letting user choose whatever they prefer at compile time.
Then you can slowly migrate/deprecate all trigger patterns to the new system, to finally remove the older one.
by mobyfab
Mon Dec 24, 2018 10:06 am
Forum: Misc
Topic: Honda OBD2 connector
Replies: 2
Views: 228

Re: Honda OBD2 connector

You're welcome

It also fits Civics and Integras, S2000... etc.
Basically everything pre K-series engines.
by mobyfab
Mon Dec 24, 2018 2:22 am
Forum: Hardware
Topic: 22mm Manhattan
Replies: 39
Views: 2258

Re: 22mm Manhattan

https://imgur.com/a/hMazten Just split or even stack the boards like some commercial PnP ECUs :) One generic with the mandatory stuff, one per vehicle type with specific stuff. Done cleanly this would have no effect on software. Stuff like GPS/Accelerometers/LCDs should have no place inside an ECU. ...
by mobyfab
Mon Dec 24, 2018 1:55 am
Forum: Misc
Topic: Honda OBD2 connector
Replies: 2
Views: 228

Honda OBD2 connector

After some research I managed to find the connector for my Accord: https://www.te.com/usa-en/product-179686-6.html
It should fit most Hondas between years 96-2002.

There are some in stock at mouser.
Feel free to add this to the documentation.