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Thread: just what can these babies do?

  1. #1
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    just what can these babies do?

    alright I see they have speed, rpm, throttle position ect.

    but can they calculate these figures...

    for example, with speed and time, they can calculate acceleration. with acceleration, coefficient of drag, and weight, they can calculate HP(peak, or any amount under peak that your using at that precise time). while their at it, how about performance numbers like quartermile and 0-60, 5-60, 30-50, 60-0 ect ect ect.

    how about saving a log of speed for a rolling 20min window.(might be useful if you get a ticket or accident to show you werent speeding if it applies, or to show speed around a track, pinpointing areas that you did better on before)

    seems like with all this info straight from the source, you could do alot of things. perhaps some nice eye candy while we're at it?(that one screen shot was a bit "blah" if you will)

    just thinking out loud of some what-ifs and how plausable they are.

  2. #2
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    in theory yes

    most of the software doesnt have this as a feature

    also persise time is going to be limited to with in a second

    as i understand it the obd-2 can only provide 1 reading at a time

    so you cant get two readings ( like engine load and speed) at the same time so its hard to compute acuratly the hp and other things. but im sure it can be done

    right now im working with the br-3 software to try to get it loged into excel in a workable format so that you can do some computations.

  3. #3
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    well 1 at a time might be ok, as speed is the only thing it really needs.

    but youd need time down to atleast .1 preferably hundreths.

    why time down to only a second? is that as fast as it can update? thats too bad.

  4. #4
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    when i set mine on turbo i can usally get about 3 readings a second

    but that still not a .1 diffrnece

  5. #5
    Maximum Bitrate wi77iam's Avatar
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    This software has user defined real time equation editor. Included are HP, G force, and MPG but it sounds like you can add calculations for any sensed data.
    Also GPS data and stop watches. I haven't had time to play with it yet.
    *******************************
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  6. #6
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    do you know if that will work with the BR-3?

  7. #7
    What can I say? I like serial. Curiosity's Avatar
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    I can get about 22-23 readings per second (VPW) from mine but to get 23 speed readings per sec I couldn't get any other info. I'm really interested in doing MPG. Can anyone help me? Is it calculated from load, RPM, throttle pos?

  8. #8
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    22-23 would be plenty to get pretty damn accurate numbers accross the board. I just played around with that other sites software under the sample. would the 2 be ok together? work with the others hardware and whatnot.

    or is there an even better personally written software program that could be used?

  9. #9
    What can I say? I like serial. Curiosity's Avatar
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    Probably not. The Multiplex-Engineering one isn't just a pass-through. You send it commands and it returns responses. I would think the others could do this just as fast though. My app only works with that one, I just don't want to support it so I don't tell anyone about it. I'd be willing to give out C++ code for it though. Mostly I just use it for fancy graphics. You can make guages and dials and all kinds of other neat things as well if you write your own app.

  10. #10
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    yeah, I dont have much programming knowledge to make my own, or understand someone elses.

    Im so needy . I want a setup that will let me recieve atleast 10updates per second with 1 variable, even better if it can do 10/sec with 2 or 3 inputs. I want to be able to enter my own formulas using this data, and I want a pretty little interface. and I dont want to program it(cause I cant). oh and Id love it if it logged some stuff in a rolling log with a 1 or 2min window, but thats not so important...

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