To have a decent travel experience in an EV you'd likely at least need this data ported out to your phone via an OBD adapter or CarPlay / Android Auto integration with an in-car infotainment display.
To have a decent travel experience in an EV you'd likely at least need this data ported out to your phone via an OBD adapter or CarPlay / Android Auto integration with an in-car infotainment display.
Today this is done via an OBD Bluetooth adapter or via CarPlay/Android Auto APIs that allow the phone to get data from the car.
Ol' Dirty Bastard? I jest, but I think the theory behind wanting an 'On-board Diagnostics' [1] connection would be to get data from the vehicle. You can get cheap bluetooth OBD-II adapters to transmit that info to your phone, it's not a given. I don't know much about electric cars, but if you want your phone to know the fuel level in an ICE vehicle then you'd need this kind of connection.