Industrial engine electronic management system development - HBA style

Discussion in 'Firewall Forward / Props / Fuel system' started by Hot Wings, Jan 4, 2019.

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  1. Oct 3, 2019 #141

    blane.c

    blane.c

    blane.c

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  2. Oct 28, 2019 #142

    jbiplane

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    The process continues. Now board become more industrial ang got waterproof case and connector.[​IMG] [​IMG]
     
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  3. Oct 28, 2019 #143

    pictsidhe

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    Weight?
     
  4. Oct 28, 2019 #144

    Vigilant1

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    You keep moving ahead. What is the present architecture (open loop, closed loop with lambda sensor?) and fault-tolerance modes (esp failures of sensors)? I noticed you've tested on various temperatures, have you had a chance to check shielding in an electronic noise environment? Thanks for the update.
     
  5. Oct 29, 2019 #145

    jbiplane

    jbiplane

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    320 grammes

    The compact 69x65mm board at functionality close to Megasquirt Extra with some add ons and supports open loop and closed loop modes. I tested it in noise environment where Speeduino hang on without any issues. At moment I dont planned to sell this ECU and going to use with my engines. I'll collects logs and analyze before bring on market "ECU bolt on [​IMG] kit".

    For sensors badly need cranckshaft sensor and TPS. All other sensors provide just corrections.
    If something fault, than engine should continue work but less effeciently.
     
    Last edited: Oct 30, 2019
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  6. Nov 20, 2019 #146

    jbiplane

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    [​IMG]
    Test boards soon be ready for testing... Production ready (not alpha or beta)
     
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  7. Nov 25, 2019 #147

    jbiplane

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    [​IMG]
    Almost ready ECU. Missed on-board MAP sensor (delivery delay)
     
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  8. Nov 26, 2019 #148

    dtnelson

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    YES! This is a fascinating topic to me (as a retired EE). In particular, if you're considering a closed loop system with O2 sensors, are you going to attempt a knock sensor of some type? To me, that's where the toughest problems lie...

    Thanks!

    Dave
     
  9. Nov 26, 2019 #149

    Vigilant1

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    Very nice. When you are ready, please post the documentation that you'll ship with the units/engines. It will be interesting to see the user defaults available in case of degraded operation (failed sensors, etc).
     
  10. Nov 26, 2019 #150

    Hot Wings

    Hot Wings

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    Been looking at ion sensing for knock. Actually looks easier to develop than the traditional method?
     
  11. Nov 27, 2019 #151

    blane.c

    blane.c

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    Genius.
     
  12. Nov 27, 2019 #152

    AIRCAB

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    Picked up on this thread late, and apologize for the next question. There are many after market EFI systems available on the market, so for instance the MicroSquirt at $300 with harness, the user interface together with data logging, and the large user group available at a keystroke, there must be some features in this proposed system that are not available in the MicroSquirt.
     
  13. Nov 30, 2019 #153

    jbiplane

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    We have this option.

    I used before Ecotron, Mictosquirt, Speeduino and some other. They are good in software part but very dissapoint in hardware quality (everything around processor). I was need something more reliable, working immediatelly without spending time on their support forumes learning somebodies bugs and problems.

    We have at least all the features of more expensive MegaSquirt 2 Extra in few times smaller waterproof case and connector + stepper idle control for 1/2 price of MicroSquirt.
    Please compare with Megasquirt 2 Extra board below...
    [​IMG]
    With our ECU it is possible use the tonns of existing software for tuning and data logging.
    User can connect to our ECU wireless by Bluetooth or Wi Fi

    For me as engine manufacturer important to be independent of ECU buying and import + software issues. I completely flexible to change any input output to fit my changing objectives :)
     
    Last edited: Nov 30, 2019
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  14. Nov 30, 2019 #154

    dtnelson

    dtnelson

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    Regarding knock sensors, jbiplane says, "we have that option".

    Could you expand? From what I've seen and read, this is a (the?) key problem with closing the loop...

    Thanks!

    Dave
     
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  15. Nov 30, 2019 #155

    AIRCAB

    AIRCAB

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    Jbiplane, thanks for the response. My experience indicates that most builders who will consider you ECU will have no hardware expierence, so the user interface will need to be good. Seeing you system is being designed for small twins, looking at Suzuki battery-less fuel injection may lend some ideas. Good luck with your project.

    Steve
     
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  16. Dec 1, 2019 #156

    jbiplane

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    We have add on knock sensing board, but it cost more than ECU itself, so we designed couple of more advanced boards than shown here. But according my experience on 2-strokes with rather small power density one dont need knock sensing at all.

    Thanks Steve
    The main objective is to install this ECU on my engines, possible make "bolt on kits" for other engines. I will give to user possibility to auto calibration and logging only. Battery less system is easy possible with other types of fuel pumps.
     
    Last edited: Dec 1, 2019
  17. Dec 7, 2019 #157

    samyguy

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    Do you have a release to the public date yet??
    It would be nice to have now to work with over the winter.
     
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  18. Dec 10, 2019 at 1:56 PM #158

    jbiplane

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    Making and testing. My electronic guy assembly 4 units per evening.
    [​IMG]
     
  19. Dec 12, 2019 at 11:18 AM #159

    jbiplane

    jbiplane

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    Choosing existing motorcycle throttle bodies with TPS for small engines below 750cc. For bigger easy use automotive throttles. Possible variants below.
    [​IMG]
    [​IMG]
    [​IMG] [​IMG] [​IMG]
     

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