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Thread: Fuel injector signal as controler, some EE help please?

  1. Default Fuel injector signal as controler, some EE help please?

    It seems as though it would be ideal to use a proportional amount of HHO as you would petrel, for many reasons. I'd be interested to go into that, but I first what to know how feasible this would be to setup (for very little money, and a willingness to solder).

    To my understanding the injector signal directly (bumped up to necessary current of coerce) would leave the cell off a lot. To combat that a switching device that has a fast on and a slow off could be of great importance, i don't know if such a component exists for necessary A range, alternately a fast on fast off if capable of 100A+ may be the way to go.

    thanks for any help
    Last edited by Owen_; 12-30-2009 at 05:43 PM.

  2. #2

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    This PWM controller/PWM can be linked to your MAP or MAF, which is directly related to load and RPM.
    http://cgi.ebay.com/ebaymotors/EFIE-...item414a860707
    http://cgi.ebay.com/ebaymotors/45A-C...Q5fAccessories
    http://www.hhoforums.com/showthread.php?t=5975

  3. Default

    Yes, that is that standard way of setting things up, but not at all what I'm talking about.

  4. #4

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    Quote Originally Posted by Owen_ View Post
    Yes, that is that standard way of setting things up, but not at all what I'm talking about.
    I guess i dont follow your first post. The link i provided you is a variable output PWM. It increases HHO output with engine speed. Example 0.5 LPM at idle 2.0 LPM under a load.

    I no the VMU was supposed to do that also, but I'm not sure they actually have that function working.
    When you're one step ahead of the crowd you're a genius.
    When you're two steps ahead, you're a crackpot."

  5. #5

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    I'm working on an all-in-one gadget that senses engine speed via a loop of wire around the spark plug wires. Easy access and can be programmed to a certain LPM at certain engine speeds. Is THAT what you had in mind?

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    The idea is that a fuel injector signal varies in length (for fuel mix) and in frequency (engine speed). Also it will cut off completely in DFCO (deceleration fuel cup off) mode.
    Therefor if this signal was spliced into (easy) and use to control current to the HHO cell (not so easy) the HHO production would be exactly proportional to fuel use.

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    you don't want a loop of wire you want a transformer. if you can find a old Xeon timming light with a clip on transformer it should work.

  8. #8
    Join Date
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    Default Wire Loop.

    Quote Originally Posted by thedore View Post
    you don't want a loop of wire you want a transformer. if you can find a old Xeon timming light with a clip on transformer it should work.
    The loop of wire Phil was speaking of is essentially a transformer and does what the timing light clip performs.

    I've used it before to good effect. The firing plug induces a voltage in the loop which is in effect your sensor. After signal conditioning, it is easily fed into your logic.

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    If the objective was the have a RPM basted controller, they yes...

    Still not what I was talking about...
    I=V/R so R=V/I and V=I*R
    P=V*I
    (I=Amps, V=volts, P= power in watts, R=resistance in ohms)

  10. Default

    Okay, so there seems to be some high current transistors on the market these days. So splicing into the injector control line, and using it as the base should be simple. Injectors have around 60ohm resistance so it should be easy to avoid messing up there function.
    The main problem I see at present is tuning, and using an appropriate cell. I want a relatively equal production per millisecond of pulse at WOT and idle. I think they only way to get this is with a cell that has far too much plate surface (to normal standards).
    As far as tuning, it will be hard to adjust the production per millisecond, though it may be possible to tweak the voltage a little, what with the transistor set up and all.
    Any thoughts?
    I=V/R so R=V/I and V=I*R
    P=V*I
    (I=Amps, V=volts, P= power in watts, R=resistance in ohms)

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