When does Charge Mode make sense?

Discussion in 'Prime Main Forum (2017-Current)' started by iskey, Apr 7, 2017.

  1. iskey

    iskey New Member

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    Just wondering if anyone has ideas on when it makes sense to enter into charge mode. I've been playing around with it on the highway at speeds of above 55mph. It really uses a lot of gas and lowers mpg quickly, but at the same time increasing EV range impressively. I haven't figured out yet if it's worth it. Thoughts?
     
  2. ChachabahPrime

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    There are threads on this. The knowledgeable folks on this forum recommend using this feature sparingly, as the ends usually don't justify the means.

    Posted via the PriusChat mobile app.
     
  3. bisco

    bisco cookie crumbler

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    to put it simply, when it's worth it to you to drive electric vs gas. some examples are approaching a steep long mountain where having the extra power would be helpful, preparing to enter a city where only ev is allowed, desiring to sneak home silently for whatever reason, etc.
     
  4. Trollbait

    Trollbait It's a D&D thing

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    Another time it might help is if you know you won't be able to charge at your destination, and the next drives will be short ones. In this case, the gas burned for charging can be offset by not going through the warm up cycle on those short trips.
     
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  5. EV-ish

    EV-ish Active Member

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    :)

    "The choice of teen-agers and the young at heart everywhere."
     
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  6. NR427

    NR427 Member

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    To get some ev on a test drive. Most of the dealers I have been to can't figure out how to plug a car in.
     
  7. bisco

    bisco cookie crumbler

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    i did that, but not enough. it seems you need more than a couple miles of ev added to drive ev only. not sure why.
     
  8. EV-ish

    EV-ish Active Member

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    Was this in the winter ? Perhaps the ICE had not finished its warm-up cycle.
     
  9. bisco

    bisco cookie crumbler

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    it was a decent day in january, maybe 40 degrees. but the idiot salesman never plugged it in like i asked him to on the phone, and started the car before we got there. it was fully warmed up with heat blasting.
    i shut off the heat, and took it out on the highway. after driving awhile, i tried charge mode, added a couple miles, and pulled off on the side streets for some stealth driving, only to find the engine came on every time i pressed the go pedal more than a quarter inch or so.
    some here have confirmed that charge mode requires more than a few miles to be available for ev, but i haven't been back for another test drive.
     
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  10. giora

    giora Senior Member

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    I wonder if using charge mode on flat at constant 50 mph to 80% EV, then using those miles back to zero EV at same speed will return similar or better efficiency than driving HV same road, distance and speed?
     
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  11. bisco

    bisco cookie crumbler

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    wouldn't that imply no conversion losses?
     
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  12. giora

    giora Senior Member

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    I am just saying it worth trying.
    If in CM ICE thermal efficiency is higher than in HV for same speed it may off-set losses. I know - it's a big if.
     
  13. bisco

    bisco cookie crumbler

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    absolutely, the more experimentation, the better.(y)
     
  14. ForestBeekeeper

    ForestBeekeeper Active Member

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    After I have driven the first 25 miles and consumed all the EV I have. Then I go to CHG mode for the next 30 miles, which gives me another 15 on EV.
     
  15. FuelMiser

    FuelMiser Senior Member

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    ...and your trip MPG is? I thought the point of the query is whether Charge mode is more/less efficient than simple Hybrid mode.
     
  16. bisco

    bisco cookie crumbler

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  17. ForestBeekeeper

    ForestBeekeeper Active Member

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    Not sure yet. I want to wait to get above freezing.
     
  18. HPrimeAdvanced

    HPrimeAdvanced Senior Member

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    Wayward husbands at 4:00am....

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  19. civicdriver06

    civicdriver06 Active Member

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    What kind of mileage does the trip computer read while using charge mode and how long does it take to get the battery back from 0 to 80% ?
    Didn't Toyota say about 30 min. ?
     
  20. Samprocat

    Samprocat Active Member

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    Level ground 65 MPH....it will show on instant MPG
    display 39-42.8 MPG

    Posted via the PriusChat mobile app.
    Load to crankshaft will stay constantly at 92% ....if there is demand for more power engine will reduce charge current to assist in electric power to the wheels
    I have not tested yet at 100% full throttle demand .....what will do....
    Standing still will operate at 1289 RPM and go from 0-80 % in 30 minutes
    I have more data that I'm obtaining just not finished with all
     
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