Something different than pulse and glide

Discussion in 'Gen 2 Prius Fuel Economy' started by LongRun, Jan 7, 2007.

  1. LongRun

    LongRun New Member

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    I have learned the pulse and glide for speeds between 30 and 40 mph, but I have been trying a similar method for speeds above 50mph. I watch the display and with the ICE arrow showing I drive to keep the electric motor assist arrow off buy figuring out if I need to push lightly on the gas pedal or let off just a little, but the idea is to adjust the speed just a tiny bit to keep the electric motor assist off as much as possible. It appears to help, at least in my experince, so far. What have you experienced with trying to get better mileage in the 50 to 75mph range?
     
  2. Michgal007

    Michgal007 Senior Member

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    I usually put Pria on cruise control if the speed is higher than 50mph. I think it's the best way.
     
  3. DaveinOlyWA

    DaveinOlyWA 3rd Time was Solariffic!!

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    CC is not the best way if you want to devote full attention to your driving and traffic conditions, but if you dont want to or have other things to think about, then CC works very well
     
  4. Beryl Octet

    Beryl Octet New Member

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    <div class='quotetop'>QUOTE(LongRun @ Jan 7 2007, 11:59 AM) [snapback]372076[/snapback]</div>
    A lot of my commuting is in that speed range, and through some rolling hilly country. Cruise control is about the worst, it results in big drops in mileage since it usually results in kicking in the ICE hard to maintain speed. A better approach is sort of a P&G -- a little pedal to build up some extra momentum on the dowhill, and then gradually lose speed on the uphill parts (traffic permitting, of course). Other than that, the general tips about gradual acceleration and just drive smooth is about all I can add. You could draft an 18 wheeler, but I 1) fear rocks flipped up by those big tires and 2) like to see what's down the road.
     
  5. LongRun

    LongRun New Member

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    <div class='quotetop'>QUOTE(DaveinOlyWA @ Jan 7 2007, 09:50 AM) [snapback]372091[/snapback]</div>
    Well, I was talking about driving on the freeway and should have mentioned that I do this when there are few others on the road. I am not stupid, but thanks anyhow.
     
  6. hobbit

    hobbit Senior Member

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    I've been giving this a lot of thought, experimentation, and wild-nice person
    theorizing, and still haven't quite come up with the right answer.
    However, reading this might help gain a little more understanding
    on what the drivetrain is doing at those speeds, with a major point
    being that backing your foot off is equivalent to upshifting, rather
    than closing the throttle. Warp stealth definitely helps too.
    .
    _H*
     
  7. berylrb

    berylrb Member

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    Hey longrun!

    I seem to recall the frequent poster from Japan, sorry I don't remember his handle, I recall him saying once that he has found CC on the flats, when you encounter a hill slowly decrease mph by -+2, then on the down side of the hill increase mph by -+2, then back to CC.

    sounds like a lot of work but appears to be a hybrid between enjoying long rides (CC) and going for mpg.
     
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