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Discussion Starter · #1 ·
Here is a petition making rounds on adding manual pre-heating option. This is to avoid "wintergate", aka slow fast charging at at cold, or even mild temperatures.

 

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2017 Renault Zoe R90 Signature Nav
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I am sure that the Koreans will start shaking from fear and will do this within the next 24 hours...... Especially when they see the last line of the petition:

"Thank you very much Kia and Hyndai"

The petitioner should have used a spellchecker......
 

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Discussion Starter · #4 ·
Eh, clearly the idea is not to instill Fear into Hyundai-Kia. But to make them aware that there is a problem, and demonstrate that there is demand for such a feature. The more signatures, the bigger sign of demand.

The Hardware, battery heater, is already there. It's "just" a matter of writing the code to control it.
 

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Even more so as wintergate in Niro/Kona 64kWh is present even at moderate temperatures:
(temperature of the coldest battery module)
full DC charging speed 75 kW only over 25°C battery temp
below 25°C reduced to 56 kW
below 15°C reduced to 42 kW
below 5°C reduced to only 21kW

Temperature of battery modules can be displayed on smartphone in Car Scanner or Torque, so you know what to expect at the next CCS charger. But all you can do right now is some jo-jo driving when approaching a DC charger (passengers will hate it).
 

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Wintergate in Niro/Kona 64kWh has more thresholds related to battery temperature (the coldest battery module):

full DC charging speed 75 kW only over 25°C battery temp
below 25°C reduced to 56 kW
below 15°C reduced to 42 kW
below 5°C reduced to only 21kW

Temperature of battery modules can be displayed on smartphone in Car Scanner or Torque, so you know what to expect at the next CCS charger. But all you can do right now is some jo-jo driving when approaching a DC charger (passengers will hate it).
The idea of a petition is frankly speaking "tres rediculi".

Feedback to the Customer Services in each country yes, petition no.

In any case, the design of the battery heating system is so tightly integrated to the car systems and involves multiple supplier levels its never going to be simple and a matter of flicking a switch.

Hyundai/Kia probably looked at thermal cycling as well as overall energy efficiency when making their design decisions. Comparing charging rate at battery temperatures > 25 degrees C to what could be properly achieved with uniform remote controlled heating is also probably disengenious. Probably best to buy a Tesla if this feature is a must have.
 

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Must admit having a battery temp value on the dashboard, and a button to welly it up on demand would be useful.

Isn't the winter mode supposed to do it though ( up the battery temperature ) ?
I drove for 20mins with it on, at motorway speeds, and it made no difference on a BP 150kw charge point.
But without gadgets like dongles etc I can't tell how far off the magic 25degrees I was.
Just had quick look and it seems the dongles are about £99-110 ... ouch
 

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Discussion Starter · #9 ·
Isn't the winter mode supposed to do it though ( up the battery temperature ) ?
Winter mode start warming up the battery when the temperature -5c and SoC is below 33% - it will stop heating once you get to to +5c, so you can get 42kW when you arrive at the charger.
I drove for 20mins with it on, at motorway speeds, and it made no difference on a BP 150kw charge point.
Kona is too efficient, no waste heat made when cruising. You can only warm up the battery by aggressive acceleration/regen cycles. Which not really an option as your passengers will vomit and other drivers will call the cops for suspected DUI.
 

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Winter mode start warming up the battery when the temperature -5c and SoC is below 33% - it will stop heating once you get to to +5c, so you can get 42kW when you arrive at the charger.

Kona is too efficient, no waste heat made when cruising. You can only warm up the battery by aggressive acceleration/regen cycles. Which not really an option as your passengers will vomit and other drivers will call the cops for suspected DUI.
Plan your winter journeys around the 42kW charging rate?
 
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