What gear am I in?

Discussion in 'General Motoring' started by JXStern, Jan 26, 2004.

  1. JXStern

    JXStern Guest

    I have a nice, new Accord EX4 sedan with the automatic, which I am
    very happy with, but would like one thing -- some indication of which
    gear it is in!

    I can look at the tach and guess, do some math in my head from the
    mph, but a simple indicator would be much better.

    Anyone else have this idea? Is there a product available? Any way to
    trick out the engine computer to use the existing display for current
    gear instead of shift handle position (which is clear enough without
    displaying it on the dash)?

    Thanx.

    J.
     
    JXStern, Jan 26, 2004
    #1
  2. JXStern

    Exeter Guest


    And this is important to know because????
     
    Exeter, Jan 26, 2004
    #2
  3. JXStern

    Artfulcodger Guest

    There is an indicator on the shift lever and one on the dash correct?
    Seems to me you have all the info necessary to tell you what gear your in.
     
    Artfulcodger, Jan 26, 2004
    #3
  4. JXStern

    JXStern Guest

    Is this unclear?

    They just tell me I'm in "D", I want to know if the tranny is in 1st
    or 2nd or whatever.

    Why is it important? Same reason it is for a manual shift, but what
    the heck, curiosity isn't a good enough reason? I'm vaguely curious
    when the thing has shifted to overdrive-5th, and can't always tell,
    have to bang the gas pedal and see if it downshifts again, or how far,
    or, again, do the math. Heck, I'd like a little bell to ring on each
    transition, when I'm in the mood for it.

    J.
     
    JXStern, Jan 26, 2004
    #4
  5. JXStern

    Randolph Guest

    You could make a micro controller circuit that compares engine RPM (as
    indicated by the tach signal) and vehicle speed (as indicated by the
    VSS) to make a good estimate of what gear is engaged. You would have to
    do some clever programing to account for the torque converter, though.
     
    Randolph, Jan 26, 2004
    #5
  6. I would look into some Ritalin or Adderall.

    CaptainKrunch
     
    CaptainKrunch, Jan 26, 2004
    #6
  7. JXStern

    Jafir Elkurd Guest

    More effective would be monitoring the signals to the shift solenoids. I've
    never dealt with a five speed auto myself, but on the four speed Honda
    transmissions with electronic controlled (or assisted on some) shifting it
    should be fairly easy.
     
    Jafir Elkurd, Jan 26, 2004
    #7
  8. JXStern

    Artfulcodger Guest

    Maybe you need a standard tranny then you know for sure what gear your in.
    Or hire someone to go ding a ling a ling every time there is a shift change.
     
    Artfulcodger, Jan 26, 2004
    #8
  9. JXStern

    Dave Kelsen Guest

    Oi. As a member of the human race, I'd like to apologize for Krunch.
    No excuses, just, well, sorry.

    There isn't an indicator per se; I have found that it's fairly easy to
    tell after a while whether you're in 4th or 5th. The other gears are as
    indicated, D1, D2 and D3. But there really isn't anything to tell you
    other than the tachometer.

    RFT!!!
    Dave Kelsen
     
    Dave Kelsen, Jan 26, 2004
    #9
  10. JXStern

    JXStern Guest

    I'm sure it's doable. I'm just curious it's not already done, by even
    Honda itself. After all, they give you a tach -- good ol' American
    cars with automatics didn't even give you that. And they supply
    sport-shifts in the Acura line, though just who uses them is unclear
    to me. Well, maybe I'll get ambitious and find that wiring diagram,
    monitor the signals, see if there's an unambiguous algorithm that
    counts up and down clearly. I've barely opened the hood of my three
    Honda automobiles to date -- never had to, knock on wood!

    J.
     
    JXStern, Jan 26, 2004
    #10
  11. JXStern

    T. Nelson Guest

    There is no way for you to determine what gear you are in unless you trade
    your car in an Accord with a manual transmission. It's really not
    important--there are more important things to worry about than this
    subject.
     
    T. Nelson, Jan 26, 2004
    #11
  12. It is easy. If you have a 4-speed auto with overdrive, here's all you do.
    Put it in D4 and go the nearest intersection where you can begin from a
    complete stop. When you initially start, the tranny will be in first gear.
    Press the gas pedal about ½ way to the floor while accelerating for best
    results. You'll notice the tach will climb and then suddenly drop. That's
    when it's shifting. The tranny will never skip a gear, so everytime the
    tach drops from a climb, count up one gear. When you get to 55MPH, let off
    the gas enough to where you maintain a constant 55MPH. The tach should be
    (or drop to) somewhere between 2k-3k RPM. That should be overdrive. On
    average, an Acord will shift gears between 3000 and 3500RPM when driven
    normally. All you have to do is count. Based on my wife's '88 Accord,
    here's a rough-estimate "cheat-sheet": (Using the method I mentioned above)
    0-20MPH = first; 20-40 = second; 40-50 = 3rd; above 50 = 4th, and whenever
    you let off the gas to "cruise", or at about 65MPH, it will go into
    overdrive. The lowest speed I've ever seen it go into overdrive is at about
    45MPH. Any lower, it should be in 4th if you're "cruising", unless you're
    cruising at 35MPH or less...then it should be in 3rd.

    Hope this helps...

    Jonathan
     
    Jonathan Upright, Jan 26, 2004
    #12
  13. JXStern

    E. Meyer Guest

    That's not overdrive you are shifting into when you let up at 55 on an '88
    Accord, its the lock up clutch engaging. On a four speed automatic with
    overdrive, 4th gear is an overdrive gear. Direct drive is always 3rd. If
    your Honda has a 5 speed automatic, both 4 and 5 are overdrive gears.
     
    E. Meyer, Jan 26, 2004
    #13
  14. You are correct, but I figured, based on "JXStern's" question, the
    information you just provided was inconsequential in reference to his
    knowledge (or lack thereof) of AT's. But since you posted it, you're point
    is taken. ;-)

    Jonathan
     
    Jonathan Upright, Jan 26, 2004
    #14
  15. JXStern

    JXStern Guest

    FYI, I'm in a 2004 Accord EX4. I don't have the owners manual here,
    but they call it a 5-speed auto.

    BTW, simply accelerating and marking shift points is not enough to
    determine numbers, since (I assume) the shift points move according to
    load, not to mention the torque converter, and for all I know the time
    of day and phase of the moon.

    Let's see, google is my friend, so:
    http://www.new-cars.com/2004/honda/honda-accord-sedan-specs.html

    2.652, 1.517, 1.037, 0.738, 0.566. Final drive 4.438.

    I'm sure these convert simply to MPH, but there will still be the
    fudge factors. I'm guessing that at a given MPH between about 30 and
    70, the car might be in any of three different gears at any moment.

    Hence, it would be easier to have a simple indicator, hey?

    FWIW, two of these appear to be overdrive, as far as the transmission
    cares, and the third one is barely under straight-thru. This ain't my
    father's 4-banger!

    J.
     
    JXStern, Jan 27, 2004
    #15
  16. JXStern

    Brian Smith Guest

    For what purpose?
     
    Brian Smith, Jan 27, 2004
    #16
  17. JXStern

    JXStern Guest

    Curiosity is sufficient.

    Why have a tach in a car with an auto?

    It's valuable information in some driving situations, that's why.

    I'd like to have the entire diagnostic state of the engine displayed
    on the LCD instead of the radio station and time of day. Or along
    with the radio station and time of day. But I thought I'd start
    small.

    I find the skeptical answers about why anyone would want this, at
    least as amusing as they pretend to find my question.

    Yes, I know automatic transmission drivers are supposed to be drooling
    idiots, but some of us are simply lazy most of the time, and frankly,
    this new 5-speed auto is slick as can be and makes it hard to justify
    a stick. But out of habit, I like to know what the car thinks it's
    doing, in case I need to hit the accelerator, it's nice to know if I
    have one or two downshifts available, and what engine load I can ask
    for before it shifts more than I want, and such.

    J.
     
    JXStern, Jan 27, 2004
    #17
  18. JXStern

    Robilious Guest

    Very simple formula. Get a piece of string. Count the number of trea
    blocks in each tire. Divide length of string into the number of carpe
    fibres on the front passengers side. Don't think of a pin
    elephant......and......presto, you've just determined that you have to
    much time on your hands!!:

    -
    Robiliou
     
    Robilious, Jan 27, 2004
    #18
  19. JXStern

    Jafir Elkurd Guest

    I hear that the Acura TL tells you which gear you are in. Maybe that's only
    in the sport mode. I don't know.
     
    Jafir Elkurd, Jan 27, 2004
    #19
  20. If you want an automatic, but really want to know what gear you're in, you
    should have gotten a model with the "auto-stick" feature on it.

    Jon
     
    Jonathan Upright, Jan 27, 2004
    #20
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