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So who's all about that hypermiling?

Discussion in 'Model 3' started by Thomas Edison, Aug 4, 2017.

  1. Thomas Edison

    Thomas Edison Member

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    I just read that the model S P100D record was just broken again. It now stands at 670miles on a full charge. They needed to go about 24mph the whole time on a closed track over 28 hours.

    I'm curious as to how the 310 model 3 will do with the battery and motor efficiency changes. Who is a daily hypermiler with their commute and what not?
     
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  2. SageBrush

    SageBrush Active Member

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    #2 SageBrush, Aug 4, 2017
    Last edited: Aug 5, 2017
    If the car is driven slow enough the consumption rate approaches motor losses and road friction.
    In my Prius Prime it is about 125 Wh/mile (8 miles per kWh)
     
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  3. Maximilien

    Maximilien Member

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    I am not an extreme hypermiler like you mentioned 670 miles.

    However, with Model X, I get 280~310 kw/mile and with Model S, I get 220~260 kw/mile.

    I expect Model 3 get 200~220 kw/mile with my style of driving.
     
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  4. kort677

    kort677 Active Member

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    hypermiling like the one on the test track is just silly nerds at play.
    it's a sure thing that if you drive the car at very low speeds you will see a large increase in how far the car can go but what's the point, are you going to take a few hundred mile ride at such low speeds?
    figuring out ways to increase your range at normal highway speeds would be a more fruitful experiment.
     
  5. omgwtfbyobbq

    omgwtfbyobbq Member

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    Someone can drive efficiently (aka "Hypermile") is most situations, including on the highway. One of the nice things about EVs, compared to ICEs, is that a driver can see the full benefit of things like slowing down or safely (10+ car lengths) following a semi. ICEs also see a fuel efficiency benefit, but because engine efficiency decreases as load decreases, some of the gains in drag reduction by driving slow or safely drafting are offset by somewhat lower engine efficiency.

    For example, if the LR Model 3's EPA rating is with Sport wheels, a car with Aero wheels could see an extra ~20 miles of highway range. An owner who is OK with driving 55mph in the right lane could also see a ~50-70 mile increase in range.
     
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  6. SageBrush

    SageBrush Active Member

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    Yep.

    'Hypermiling' as a practice is mostly centered around optimizing ICE efficiency and reducing pumping losses. An EV has mostly deprecated the entire business. Driving slow(er) and reducing brake use is better described as such directly.
     
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  7. Randy Spencer

    Randy Spencer Member

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    I think it it MUCH more efficient to be, like, 1 car length back. I have the 2000 Honda Insight and it has the instant readout too. With drafting that close I have gotten 93.5 MPG from SF to LA and back on one 10 gallon tank. Wonder how many truckers will be upset by all the Teslas set to cruise 1 length back, pulling down their MPG

    -Randy
     
  8. JeffK

    JeffK Well-Known Member

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    What's the opposite of a hypermiler, because that's what I am. I want a great range for a performance model with 19 in wheels that drives 80 mph everywhere.
     
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  9. SageBrush

    SageBrush Active Member

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    Efficiency drops after a very sudden stop, followed by months in the hospital and a total loss on the car.
     
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  10. David99

    David99 Active Member

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    Drafting behind semis is just asking for all kinds of trouble. Dirt and rocks from the road are thrown up by the semi wheels and damage your paint more than normal. It's dangerous, its annoying to the truck driver. Please don't do it.

    Extreme hypermiling to see how you can break the record on a single charge is of course not practical in real world driving, but extreme hypermiling like this teaches you what affects range and what you can do to save energy.

    I like to drive smooth and efficient, but I don't drive slow at all. For example I keep a slightly larger distance to the next car than most people do. It helps driving smoother and using brakes much less and maximize regen. On freeways I'm probably in the top 20% speed bracket. I found the most effective way to drive energy efficient is looking ahead in traffic and adjust early. The less speed adjustments you have to make (both accelerating and decelerating) the more efficient you are. The harder necessary speed adjustments are, the less efficient you are.
     
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  11. McRat

    McRat Active Member

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    I think this will be the mission of the M310. Zip around everywhere, no concern for speed, range, or Wh/mi. It's lighter, narrower, with better efficiency.
     
  12. David99

    David99 Active Member

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    +1
    When I got my Model S there was the 85 and 60. It was a stretch for me to buy a Model S but I still opted for the larger battery. Totally the right decision. If everything goes by plan you are fine, but life never goes as planned and you will need the extra range.
     
  13. kort677

    kort677 Active Member

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    I usually do 2 and I've never had any sort of issue with a trucker when drafting, you throw blocks for them and they appreciate it.
     
  14. kort677

    kort677 Active Member

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    that is how you may feel but I and many others draft often. if I see a trucker doing a constant 70+mph I fall in behind and enjoy the savings, once or twice drafting saved my bacon on extremely windy days.
     
  15. David99

    David99 Active Member

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    It's less of a 'feeling' on my end but just facts. More rocks hitting your car and higher risk because of the reduced distance isn't feelings.
    I had to do it a few times to make it on road trips when I planned wrong, but nothing I'd recommend.
     
  16. jsmay311

    jsmay311 Member

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    I currently drive a Gen 1 Volt and I do some moderate hypermiling -- particularly on trips where doing so will mean the difference between being able to do the whole trip on battery only vs having to burn some gas.

    If I get a Model 3 there will be less incentive to drive efficiently since it's already so efficient and since there'd be no risk of burning gas. But I would hope that I'd retain at least some of my efficient driving habits. :)
     
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  17. SageBrush

    SageBrush Active Member

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    This is me too.
    I'm looking forward to driving 70 mph instead of 63.
     
  18. Garlan Garner

    Garlan Garner Well-Known Member

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    You will never know from me because I don't have that kind of time, nor is it important to me.

    Well if I can find a hill that I can go down hill on both sides......then I might consider it.
     
  19. MXWing

    MXWing Active Member

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    Rather than "limiting my speed" so I can make it to the next supercharger I said

    "F it, and dropped 4500 on a credit card to upgrade from 60D to 75D"

    That's all I have to say on the subject.

    Went to Vegas as a 60D. Came back as a 75D.
     
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