Energy used by heating system

[tls1]

Hi all,

In my 2016 it has approx 48,000km. This winter season up here in Canada it has been -10C (14F) lately. In the summer we were getting range of about 150km on a full charge using AC (it was about 200km in summer when it was new). Now in the winter it dropped to about 125Km on the display but in actuality its can be as little as 100km or less. Its quite unnerving.

I have noticed that maybe the heat pump heating system has a problem? We don't really know at what temperate the HP turns off and the resistive heater turns on. Further sometimes the heat button light turns on, sometimes the AC light turns on... does anyone know what actually happens and how much energy they each use? and when to use them? I have seen the energy as high as 3-4kwh on the display with the temperature set to 20C and fan on low (1,2, or 3) setting.

Further when using the front (defrost) button, the energy use jumped to 6kwh and the hot air was really hot, seems the resistive heater only runs at 100% or nothing? Ouch! Even with the temperature set to 20C on low (1,2, or 3). This was today. Car parked in garage overnight. Then sat outside for 45 mins, outside temp -7C, no windchill, windows fogged up on the inside.

Lately the car is so unpredictable that we feel the need to charge almost every day even though the round trip for work is 20km all city (no hwy). Heaven forbid we get stuck in one of those horrible traffic jams.

Soulspy says battery SOH 100.6% doubtful! battery cells map top row shows 3 pinks with 4.0 and 5 blues 3.0, all of the grey squares below show 3.68. Any other valuable info from Soulspy I should look at?

Happy New Year to all!
Terry

 

[IanL]

For the 2016 and 2017 model, I understand SoulSpy computes an SOH value from "best and worst cells" or something on those lines. I don't think the method is the same as the one KIA uses to give the official value they use to determine whether the battery is replaced under warranty.

 

[JejuSoul]

Firstly you are in Canada, so have an 8 year warranty. For a 2016 it is now too late to get a warranty battery replacement. You can ignore any values for SOH given by the app. If you want to keep this car for as long as possible you are going to have to be gentle in driving and charging this car. It may be best to use HVAC as little as possible when driving. Warm the car while it is being charged so the cable is providing power for the HVAC not the car.

There are details on how much power HVAC draws while charging here. :- Pre heating the Cabin



Scheduled heating of the cabin at 0°C.

Conclusion = Need a 3,1 kW EVSE setting if you don't want loose the battery charged over night at 100% when you pre-heat the cabin.

3,1 kW = 1,1kW EVSE + 2kW Average consumption on RED line.

 

[tls1]

Hi JeJuSoul,

The car stays in the garage in the winter overnight. On work days it is driven about 10km to the office where it sits outside for the day with no option to plug in. Then it is driven back 10km to the garage. All stop/go city red lights/stop signs. We have Eco mode always enabled. Anecdotally it seems the front button sucks the most juice, followed by auto. We try to use the heat (and sometimes AC) buttons only with cabin temp set to 21-23. In my previous scenarios it was -10C outside.

1) At what exterior/interior temperature does the heat pump stop working and the resistive heater take over?
2) Aside from using the heated steering wheel and seats which we do, does the foot/defrost (or foot/face or foot only) combination setting use the least juice?
3) Is there a way for me to check the HP is working? Or only the dealer?
4) Could it be the battery heater that is causing the high (20-30-40kwh per 100km) readings? Note there are no codes on soulspy.

Lastly I did go see a new EV, they offered me $5K for a trade in. They noted a small rust spot where the car was dinged and never repaired. Do you think its worth while fixing to get a better trade in?

Regards and thanks!
Terry

 

[chilibt]

Hi,

Further sometimes the heat button light turns on, sometimes the AC light turns on... does anyone know what actually happens and how much energy they each use?

(2018 in Ottawa). This perplexed me as well, I believe there is a humidity sensor that uses the AC feature to dehumidify the cabin air. I also get the defog "auto" when this happens, even though I want it to direct to the feet, it stays in "AC and auto" for about 20 minutes without being changeable to take it off of defog, after 20 minutes or so then it returns to normal driver control.