Kona EV "Winter Mode" - defined and condensed

Discussion in 'Hyundai Kona Electric' started by nzkiwi68, Jan 5, 2020.

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  1. Thank you for your answer. I tried 17-18C and just high enough fan speed last winter. Outside temperature was roughly -20. Car was preheated to twenty something to defrost the windows. The consumption was significantly lower compared to similar morning. I managed to get under 18 kWh/100km (3.45 mi/kWh or 5.56 km/kWh). My feet were a bit cold but it was due to my poor choice of shoes and socks.
     
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  3. navguy12

    navguy12 Well-Known Member

    Again, I’m most familiar with manual control of my TM3, but I have found that forcing the HVAC to always use fresh air (versus recirculate) in both the Kona and the TM3 eliminates any fogging up of the side Windows.
     
  4. Maybe it is me, but the functionality of "Winter mode" is still confusing. Many contributions above make sense, yet some are contradictory. Battery heating (conditioning/plugged in while charging) makes sense, but using precious fuel to cut range in the middle of winter? I rather 'get there' and wait out longer charging. While plugged in you can heat (seat or even cabin) or go inside, if there is a place, to warm up.

    I wish someone from Hyundai engineering would clear this up.
     
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  5. eurokeitai

    eurokeitai New Member

    Winter is coming.. again! Has anyone considering modding their kona with "trigger battery heater" button? All the hardware to make it happen is already there, it is "simply" the matter of finding how to send the "plz turn battery heater on" message without interfering temperature safety thermostat.
     
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  7. hobbit

    hobbit Well-Known Member

    All the hardware is *not* there in many regions' models, notably the heater and extra coolant plumbing.

    _H*
     
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  8. Pix for the curious ...

    IMG_1555.jpeg

    IMG_1559.jpeg
     
  9. duende

    duende New Member

    @herode10: Thanks a lot for your Temperature/Chargin-power table. Are these values independent of which size battery is being charged?
     
  10. duende

    duende New Member

    Just found out that the 64kWh edition will charge with a max. of 75+kW and the 38kWh with about 45. So that answers my question.
     
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  12. herode10

    herode10 Member

    Only applies to 64 kWh pack. The 39 kWh pack has a different cells configuration then the 64 kWh. The 64 kWh has 98 groups of 3 cells in parallel connected in serie, while the 39 kWh has 88 groups of 2 cells in parallel connected in serie. Because of this, the 39 kWh pack will accept 2/3 of the current that the 64 kWh can take and the battery pack voltage is lower which will limit furthermore the charging power.
     
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  13. duende

    duende New Member

    Thanks for that background info. So i guess it was a good idea to get the 64 kW pack :)
     
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  14. What is also needed with our Kona EVs (besides the software ability to manually turn on the battery heater to increase charging speed), is the ability to reduce the DC charging speed via settings; similar to AC charging current limiting in the charge management screen.;)
    If in a hurry, and cost is not an issue...use the manual heater setting before charging DC.
    If time is not a concern and using a tier based charging setup, set the DC charging to minimum, to save $, and avoid the manual battery heater setting entirely - giving more range.
    Take for example the new rates set in Quebec at Electric Circuit as per provincial regulations:
    "The new pricing will be:

    • 22-kW fast charge stations
      • $7.31/ hour
    • 50-kW fast-charge stations
      • $12.39/ hour or $24.78/hour when battery level is more than or equal to 90 per cent
    • 100-kW fast-charging stations
      • $15.27/ hour 0-50 kW
      • $19.39/ hour 50 to 60 kW
      • $23.48/ hour 60 to 70 kW
      • $31.69/ hour 80 to 90 kW
      • $35.79/ hour 90 to 100 kW
      • $30.54/ hour 0 to 50 kW (battery level more than or equal to 90 per cent)
    • 100-kW+ fast charge stations
      • $35.79/ hour
    The Electric Circuit is the largest public charging network for EVs in Quebec."
    Typically @ a 50 kW machine I usually charge at, in cold weather it will peak at 44kW (a few minutes) then settle back to ~ 23 kW for the duration.
    On the 100kW machine you can see the price would double (assuming full peak charge rate of 77 kW).
    Personally, I would select a 22kW machine, or use the current limiting DC charge settings (set for under 50 kW) on the 100 kW machine and save a lot of $.
    Can you imagine the cost charging Ionic 5 (c/w coldgate) using the the 100+ charger:eek:
    While I am ranting, I would also like to see a battery temperature gauge (even in a bar type format).
     
    Last edited: Jan 30, 2022
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  15. We should be charged by kWh, period. There can be time limits with extra charges, if necessary. Can't believe that with all the software driven stations out there, they can't do that. And lack of Canada Measurement certification is no excuse. If necessary, demand it of a charging station company.
     
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  16. Yes, it's an absurd omission.
    Ideally but if a charger is in high demand there needs to be a motivation to vacate so others can charge. Most of our 50kW DC units bill at 25 cents per kWh plus 25 cents per minute, which in practice works out to be more than twice what EE mentions for 50kW.
     
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