Prius lover who is starting think about the next prius which would b the Prime...

Discussion in 'Prime Main Forum (2017-Current)' started by PixelRogue, Feb 25, 2021.

  1. PixelRogue

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    Prius lover who is starting thin about the next prius which would b the Prime...

    Have gotten in the habit of always switching between EV, D, Br & N while driving...always charging while coasting (or coasting with out charge) Using BR to slow down in most cases....it has been like driving a manual and love it...and this has method has netted crazy milage.

    The shifter in the Prime has been relocated to a less convenient comfortable location making this habit a pain to think about and concern how that will adjust. (Prius history would be 2010 and currently 2012 plug)

    Anyone here hypermile in their Prime?

    The method is so engrained that I might consider modifying the Prime to relocate the shifter to a closer space..and maybe use one of those push button shifters so there would be no stock in the way.
     
  2. Salamander_King

    Salamander_King Senior Member

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    No need to hypermile PRIME. You can achieve 60 mpg without any effort. With conservative speed and braking, 70-80mpg is easily achievable without doing any of the crazy shiftings you have described. In fact, if you are charging the traction battery and driving mostly on EV mode, there is no benefit.
     
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  3. dbstoo

    dbstoo Active Member

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    I don't hypermile, per se. I drive normally whenever there is a car following me. I do often coast the last couple hundred feet for so to a stop sign especially if there is an uphill incline. I do coast when I can see a red light ahead and often don't need the brakes when I do that. Yesterday I made an 8 mile cross town trip and the gauges showed 5.7 miles per kWh. That's 175Wh per mile. Not to shabby for a trip with lots of starts and stops.
     
  4. Mendel Leisk

    Mendel Leisk Sunday driver DIY’r

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    @PixelRogue , now's your chance to fix that title. There's a button somewhere around the initial post when you start a thread, is there for a few hours. Later on it'll take a moderator to edit.
     
  5. bisco

    bisco cookie crumbler

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    i wonder if you could mod a paddle shifter behind the steering wheel.
     
  6. CharlesH

    CharlesH CA HOV Decal #5 on former PiP

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    As I understand it, the hypermiling techniques for the Prius, such as "pulse and glide", are based on getting the ICE to operate more in its most efficient manner (right RPM, power load), and using the battery to move the car with the ICE off otherwise. This is all based on the fact that in a Prius, all of the power ultimately comes from the gasoline engine, so one then goes to great lengths to make it operate as efficiently possible, or be off. None of that is relevant when driving in EV mode in a Prime. Unlike gasoline engines, electric motors have a very flat RPM/power curve. Others can provide more technical details, but the bottom line is that it is really hard to beat with manual techniques what the car does on its own with respect to efficiency.
     
    #6 CharlesH, Feb 26, 2021
    Last edited: Feb 26, 2021
  7. PixelRogue

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    Yes, presume it would be charged nightly. While Prime has crazy enhanced milage, I am looking to understand how that mileage would not be further extended by, for example, riding long runs in neutral (where the glide wouldn’t work or too slow in drive to regen.)

    Also - curious if l the charge benefit of the prime meets or exceeds the additional cost for the prime. Having had a Prius 2010, and 2012 PIP, there has not been a huge benefit to the charging ritual.

    It was gone, think it vanished soon after they post.

    Interesting.

    Yes yes, understand. If the Prius itself was 100% electric, or your trips between charging were less than 25 miles then I get it.

    Lets say you are driving 200 miles for example. I would see reserving electric for when the power is needed, for when there are a lot of stop and go patters...regenerating when ever possible (coasting to stops, long downhill roads.) neutral when not enough speed or slope to keep in drive.

    Seems like hypermiling is going away, and curious if it is simply because now owners are happy with the new milage achievement so no need to hypermile, or is it more there is no gain from hyoermiling? I come from the perspective of being efficient, so if the Prius was getting 100mpg, however changes to the way one drives can get 120 or 150 then go for it (even though 100mpg on its own would already be amazing.)
     
    #7 PixelRogue, Mar 4, 2021
    Last edited by a moderator: Mar 4, 2021
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  8. Salamander_King

    Salamander_King Senior Member

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    It all depends on the cost of electricity you are paying. At the US average rate of $0.12/kWh, using EPA numbers of 25miles EV range and 53mpg for gas HV drive, your EV driving is going to be about half the cost of driving on gasoline at ~$3/gal. If you charge PP and your routine drive is always less than the EV range, your mpg is going to be locked at 999.9mpg at half the cost of gas at $0.12/kWh vs ~$3/gal without using any of the hypermiling techniques.

    Of course, if you are paying more or less than the national average on electricity and gas, and your usual EV range and mpg is more or less than EPA numbers, and your driving habit is more or less than the EV range... then YMMV.
     
    #8 Salamander_King, Mar 4, 2021
    Last edited: Mar 4, 2021
  9. ETC(SS)

    ETC(SS) The OTHER One Percenter.....

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    If you like to Hypermile with a PHEV, you may want to consider making your next Prius an Ioniq.

    I don't have any stick time with them personally, but they're reputed to have a Volt style regen paddle....which would give you the option of nearly true 1-pedal-driving.

    Something to think about......;)

    Good Luck!
     
  10. Prius7Prime

    Prius7Prime Junior Member

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    i dont hypermile, but i do try to coast when i can. but sometimes things are unavoidable what with the way streets are built in my area. however, i have no complaints about performance. but when op brought up thinking about the future it also makes me wonder personally...ill have to check more into that haha!
     
  11. AldoON

    AldoON Junior Member

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    The Prime is a really nice car. I would take it over the regular Prius any day mainly because I like the EV driving experience.

    It has its flaws... Mainly infotainment.

    As for hypermiling I'm finding if you drive efficiently there is little to be gained from more extreme measures like shifting to neutral etc. Biggest two factors are keep your speed down and plan your route to make the best of your EV range.

    From a safety and liability point of view, relocating the shifter seems like a really bad idea. Keep your eyes on the road, forget about shifting, focus on driving safely and efficiently. Time the lights, glide as much as you can etc. You'll get great mileage and will be less likely to get in an accident. Also, keep up with traffic and stay out of people's way.
     
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  12. Tideland Prius

    Tideland Prius Moderator of the North
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    I don't hypermile but I did do P&G with the Gen 2-4 Prii. With the Prime, in EV, it's more about smooth pedal inputs.

    I follow the Eco Accelerator Guide (blue bar) to help eke out the EV range. Doing so, my best is 9.1kWh/100km or 6.87 miles/kWh. That got me 39.7 miles of range (63.5km) out of a charge with 400m (400 yds) left in the GOM. I had hills and a tall bridge to cross (and it was a return trip so it averaged out).

    New Personal Best - 63.5km (39.7 miles) per Charge | PriusChat

    Between that and P&G, I'm sure you can maximise the Prime's efficiency. Driving "normally" (which really is not that efficient since everyone's in a rush), it's closer to 11kWh/100km (5.68mi/kWh) in the summer. Even 11.5km (5.4 mi).

    In the rare occasion I've used HV mode around town because I've ran out of charge, 2.9-3.3L/100km (71-81mpg) over 20km (12.5 miles). A highway summer jaunt within the metro area got me 3.2L/100km (73.5mpg) over 37.5km (23.4 miles).
     
    #12 Tideland Prius, Mar 4, 2021
    Last edited: Mar 5, 2021
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  13. PixelRogue

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    • Always out of people’s way.
    • While not opposed to relocating the shifter module, might not be worth the effort, and might throw off future buyers. I will explore when the time comes.
    • Shifting is thoughtless/effortless, hand just moves.
    • Infotainment has been TERRIBLE for as long as I can remember - shockingly bad. One reason I am only looking at 2020+ is for Apple’s CarKit in hopes that address the main flaws. Hope it also does not have a stupid SiriusXM installed that auto blunces you into their station set with no easy way out each time. While on this rant, the radio of the 2012 PiP is marketable worse than the radio I had in the 2010. Same trim levels, makes no sense. Yes, this an obvious hot button for me.
     
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  14. PixelRogue

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  15. Salamander_King

    Salamander_King Senior Member

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    MPG display on PP is meaningless if you charge the car and drive on EV mode. If the engine never comes on, it will be forever showing 999.9mpg. Even if you do drive further than the EV range and the engine does come on occasionally, the mpg display is never for the actual mpg for HV mode. The EV range from the full charge is estimated to be 25 miles, but you can drive further distance most time especially in warmer weather.
     
  16. Tideland Prius

    Tideland Prius Moderator of the North
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    The Prime is rated at around 4 miles/kWh per the EPA so my record is essentially more than double that.

    4 miles/kWh is approximately 133MPGe (What the Prime is rated at by the EPA). 9.1 miles/kWh is 306MPGe.

    (Note the MPG scale skews past 100mpg... i.e. a small change in efficiency results in a larger change in mpg value making it seem really impressive but nonetheless, the ratio between the rated and what I got is the important figure here).

    Granted, most people's average, including mine are in the 4.5-5 miles/kWh range (averaged over summer and winter) so we're still beating the EPA combined value. (That's 151-168MPGe)
     
  17. PixelRogue

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    Saying the higher the M/kWh the lower the MPGe?
     
  18. Salamander_King

    Salamander_King Senior Member

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    No. 4miles/kwh 133mpge vs 9.1miles/kwh 306mpge.
     
    #18 Salamander_King, Mar 6, 2021
    Last edited: Mar 6, 2021
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