Auxiliary Battery Monitor (Kia Niro EV)
The 12V auxiliary battery in our Niro has died twice, so I decided to dig back into OVMS to see if it could shed any light on what is going on with the battery. I’ve installed the AuxBatMon <https://docs.openvehicles.com/en/latest/plugin/auxbatmon/README.html> plugin to log battery parameters and I have questions… The module is running: 3.3.003/ota_1/main (build idf v3.3.4-848-g1ff5e24b1b Sep 3 2022 11:32:12) — is this really the latest stable version? Here’s what I’m seeing: My questions: What is the source of the current value? Is it being reported by the vehicle? I’m puzzled by it remaining at a high constant value even after the charger appears to have shut down. Similarly with the charger and environmental temperature values — it seems add that they are mostly constant. If there is anyone out there with a Niro / Kona, I’d be curious to know what the behavior of your auxiliary battery looks like. Many thanks, Doug
Generally, 12V current and temperatures are reported by the vehicle, as the module cannot measure that, only voltage. Metrics normally only get updates while/when the car/VCUs are online. Metrics get "stale" when not receiving updates for a while, but the AuxBatMon plugin for simplicity doesn't check for staleness. You're welcome to improve that. Note, you'll need to add a metrics staleness query Duktape API call first. The Niro/Konta adapter could also zero the current metrics when detecting the vehicle being offline. Regards, Michael Am 08.02.24 um 21:03 schrieb Douglas Urner:
My questions:
1. What is the source of the current value? Is it being reported by the vehicle? I’m puzzled by it remaining at a high constant value even after the charger appears to have shut down. 2. Similarly with the charger and environmental temperature values — it seems add that they are mostly constant. 3. If there is anyone out there with a Niro / Kona, I’d be curious to know what the behavior of your auxiliary battery looks like.
Many thanks, Doug
-- Michael Balzer * Helkenberger Weg 9 * D-58256 Ennepetal Fon 02333 / 833 5735 * Handy 0176 / 206 989 26
participants (2)
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Douglas Urner -
Michael Balzer