Android Auto telemetry conversion wrong for odometer [395895377]

Bug

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Description

ra...@googlemail.com

created issue #1

Feb 12, 2025 06:33AM

Hi,

We are currently implementing the Android Auto telemetry. So far it works, but I noticed an issue with the conversion of odometer.

This is the data we read, when I send „range 235“ and „odometer 235“:

Range: [ 
    battery percent: [value: 66.0, timestamp: 451075440483595, Status: 1, CarZones: [[CarZone row value: CAR_ZONE_ROW_ALL, column value: CAR_ZONE_COLUMN_ALL]]], 
    fuel percent: [value: null, timestamp: 451075440483595, Status: 2, CarZones: [[CarZone row value: CAR_ZONE_ROW_ALL, column value: CAR_ZONE_COLUMN_ALL]]], 
    energyIsLow: [value: null, timestamp: 451075440483595, Status: 2, CarZones: [[CarZone row value: CAR_ZONE_ROW_ALL, column value: CAR_ZONE_COLUMN_ALL]]], 
    range remaining: [value: 235000.0, timestamp: 451075440483595, Status: 1, CarZones: [[CarZone row value: CAR_ZONE_ROW_ALL, column value: CAR_ZONE_COLUMN_ALL]]], 
    distance display unit: [value: null, timestamp: 0, Status: 2, CarZones: [[CarZone row value: CAR_ZONE_ROW_ALL, column value: CAR_ZONE_COLUMN_ALL]]], 
    fuel volume display unit: [value: null, timestamp: 0, Status: 0, CarZones: [[CarZone row value: CAR_ZONE_ROW_ALL, column value: CAR_ZONE_COLUMN_ALL]]]]
Odometer: [ 
    odometer: [value: 235.0, timestamp: 451079688875781, Status: 1, CarZones: [[CarZone row value: CAR_ZONE_ROW_ALL, column value: CAR_ZONE_COLUMN_ALL]]], 
    distance display unit: [value: null, timestamp: 0, Status: 2, CarZones: [[CarZone row value: CAR_ZONE_ROW_ALL, column value: CAR_ZONE_COLUMN_ALL]]]]

And this is what the help of the desktop-head-unit shows:

> help odometer
Command: "odometer kms [current_trip_kms]"
Set the odometer to the specified kilometers along with an optional current trip km value.
> help range
Command: "range [range in km]"
Set the range to the specified kilometers, or do not pass in a value to disable range data.

This is our code, to get the value in km:

mileage.getOdometerMeters().getValue() / 1000d
energyLevel.getRangeRemainingMeters().getValue() / 1000d

So as you can see the API both describes them as meters and we convert them to km.

However Odometer then returns as 235m.

We also verified this in a real car that provides these values, and it behaves the same.

Can you please check?

Thanks Samuel

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