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MAX distance on just electric motor

Discussion in 'Gen 2 Prius Main Forum' started by NOOB, Oct 26, 2005.

  1. NOOB

    NOOB New Member

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    I am thinking about getting a 06 Prius. I read that the 06 Honda Civic hybrid can go 1 mile on just electic motor if driven under 30-40 mph. I was wonder how far can the Prius go if you manage to run on just electric?
     
  2. DaveinOlyWA

    DaveinOlyWA 3rd Time was Solariffic!!

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    i have gone nearly 2½ miles. that was a very slight drop in elevation, not enough to matter a lot i dont think.
     
  3. Tideland Prius

    Tideland Prius Moderator of the North
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    Electric motor? unlimited since either battery or engine can power the motor....

    But seriously, I assume you mean EV mode. Depends on terrain (upslope vs. downslope) and how hard you accelerate. I've gotten up to 55km/h with the EV switch and I could probably last 2kms. Driving in EV mode isn't actually the most efficient way.
     
  4. Jack 06

    Jack 06 New Member

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    I've gone 4 miles.
     
  5. efusco

    efusco Moderator Emeritus
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    First of all, the answer to your question is "it doesn't matter, the point isn't to drive with the electric motor only."

    Second, the only way anyone can go 4 miles, or even 2 miles on pure electric power in an '04+ Prius is by going very slow with a downhill slope and probably a running start. The battery simply doesn't contain, even with a full battery on the display, enough power to 'power' the car for 4 miles. I probably could push two under ideal conditions, but little farther.

    Practial EV distance with an EV button is probably in the range of 1/2-3/4 mile. Certain conditions you could push to 1 mile but that would not be worth the effort. If you have to go that far just drive the car as it's designed...it will be more fuel efficient to do so.
     
  6. Wayne

    Wayne Active Member

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    I agree, how far you can go electric-only in one segment really isn't the point -- it's what the car does with the electric assist overall that really makes the difference. Personally, I think I've done 2 miles electric-only on a level surface, but that really doesn't measure what a hybrid is capable of. There is a lot more going on than that!
     
  7. Mystery Squid

    Mystery Squid Junior Member

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    I've gone one full mile, and just a hair bit more when conditions were exceptionally optimal, WITHOUT the EV switch. Conditions have to be right though, generally, long straights, or gradual slopes in topography is the key. I can verify the 1 mile mark because one of the roads I turn into is precisely a mile from my house, it's mostly level with two little hills that help "spingboard" you.

    But yeah, what Evan said, for "practical" purposes, don't expect more than 1/2 to 3/4...

    Of course, this also assumes a "rolling start", and NOT from a dead stop...

    Thing is, that's not really the ideal context to think about it in. ROUGHLY, let's say you have a 10 mile drive, an experienced Prius "Featherer" will use, to their advantage, the following three components: the ICE, the electric engine, and neutral, such that of that 10 mile stretch, maybe only 5 miles actually required use of the ICE.

    Now, again, that's a very ROUGH example to illustrate a "fairer" context of the question you're asking.


    Speaking of which, does anyone care to venture, over let's say 100K miles, what the ICE/Electric proportion is? As in: Out of 100K miles traveled, 43000 was non ICE...
     
  8. NOOB

    NOOB New Member

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    The reason why I asked was that rush hour traffic in vancouver is worst than LA rush hour and you will not get above 20mph for about 5miles. So I was curious how long you can go on electric motor (EV mode) before gas motor kicks in.
     
  9. NuShrike

    NuShrike Active Member

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    Best if you loaded up with extra batteries charged from the wall... Otherwise, you'll just kill your MPG once the ICE has to recharge the batts.

    Trust the design to use EV when needed, and the ICE when about as efficient.

    It's nice to be able EV all the time esp in stop-n-go traffic, but that's not this car's default design.
     
  10. DaveinOlyWA

    DaveinOlyWA 3rd Time was Solariffic!!

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    actually i have extensive testing on this and at 35 mph, in the summer, relatively flat and no stops, its more like 70-80% battery by distance.. i have a stretch i drive which is only 6.5 miles but still allows the ICE to cycle on 5-8 times.

    i have logged this run several times and the the worst to best is not much of a difference really.
     
  11. coloradospringsprius

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    I once went about 45 miles with at most a minute or two of ICE use. But some killjoy will probably insist that the 5,000-foot descent had something to do with it. <_<

    Actually, your best mpg in the Prius isn't achieved when using the battery - which, after all, is ultimately recharged by the engine. It occurs when you're in gliding mode, which basically means you're coasting, but in gear. (I.e., you can punch it if necessary.) In those moments - and 20-mph traffic will give you lots of them, at least in the downhill direction - the Prius basically uses no energy at all, unless you're running the A/C, etc. AFAIK, this is a unique feature of Toyota's hybrid synergy drive; the Honda hybrid system has no way of disconnecting the ICE from the drive train.
     
  12. efusco

    efusco Moderator Emeritus
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    Your rate limiting factor there will be time more so than distance. There are always energy drains and the longer you sit or move slowly the more drain on the battery. Not to worry, you'll still be WAY better off than anyone else in that slow moving stream.