Refill inverter coolant

C

ColoradoKonaEV

Member
My wife just sent me a a picture of a warning message - "Refill inverter coolant", which popped up while she was driving. Can I top it off? Where is the reservoir located?
 

Attachments

  • inverter coolant.webp
    inverter coolant.webp
    42.8 KB · Views: 40
ColoradoKonaEV said:
My wife just sent me a a picture of a warning message - "Refill inverter coolant", which popped up while she was driving. Can I top it off? Where is the reservoir located?
Click to expand...
Maybe a pump issue or sensor? Picture of the one at the front:

index.php

This one is for the BMS at the rear (not the one for the inverter/ motor but might as well include it while on the subject)
index.php

Thanks to @KiwiME for the photos. Note these are coolant - not water pumps :)
Edit: one other thread on this with no follow up, so assuming it was a quick fix
 
Last edited:
electriceddy said:
Precisely why I did this:
ayIYMAw.jpg
:)
Click to expand...

This looks like a good idea. In my case there are no leaks. I finally got the traction battery replaced about a month ago and they also changed the "ev battery coolant". Is this the same as the "inverter coolant"? It is possible they did not put enough coolant. I will take the car to the dealer, so they can fix it whatever it is.
 
ColoradoKonaEV said:
battery coolant". Is this the same as the "inverter coolant"?
Click to expand...
Yes, in the Kona EV.
IMG_9999.png

Three coolant loop modes
The three modes (Heating, LTR or Low Temperature Radiator, and Chiller) correspond to the three different computer-controlled valve settings and coolant flow diagrams.
IMG_0002.png

IMG_0002.png

During much of the year in mild climate conditions the thermal system typically starts up in LTR mode (labeled “Cool Condition” above) which circulates coolant through a single interconnected loop to warm the battery up to its optimal operating temperature when cold and to maintain that temperature with the help of a radiator and fan.
IMG_0001.png

The three-way valves switch to Chiller Mode (labeled “Hot Condition” above) when the battery starts to get too warm. Hyundai hasn’t said what the exact parameters are. The coolant flows through a “chiller” which exchanges heat with the vehicle’s air conditioning refrigerant loop.

In the Chevrolet Bolt EV, the A/C system begins helping to chill the battery coolant when it reaches much above 32C (90F). But the Bolt has a dedicated coolant loop just for the battery and no valves to allow the exchanging of heat with the motor and power electronics loop.
IMG_0003.png

When temperatures are really cold, the dedicated battery heater kicks in (if present) even if “Winter Mode” isn’t enabled. Like a hot battery in Chiller Mode, the battery coolant sub-loop circulates independently because the battery heater is only needed to warm the battery and not the rest of the components.
E-GMP uses 2 systems
Low conductivity for the battery, and regular coolant for the motor, inverter and electronics (EPCU,OBC etc)
 
Last edited:
You must log in or register to reply here.
Back
Top