Distance measuring with OBD

[Mirco Kiemann]

Hi, i can´t find this written anywhere in the FAQs, on the genereal Informations nor via the forum-search, so i ask this here.

When in Roadbook-Mode, i assume the distance measuring is done with GPS.

If i use the obd-dongle, will the measuring be done with the front wheel sensor or still the GPS from my device?

Can i somehow decide what is used?

 

Hope to get an awnser.

Kind Regards

Mirco

[João Pereira]

The measure is always done by GPS, that is how most roadbooks are tracked so it will match better.
Measuring from the OBD is a really bad idea, most of the times speed and distances are WAY off, with often existing some sort of calibration in the stock speedo for wheel size correction.

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[Mirco Kiemann]

Thanks for the quik awnser.

I tried to find any information about the offered realtime-datasets by the OBD Interface but couldn´t find anything in the users manual or via google.
So i asked ChatGPT and and it basically said that the provided wheelspin-information (which could be used with some simple math for determinating the traveled distance) is kept between the sensor and the board-computer and isn´t offered at the obd interface (usually).

In my mind this type of measurement could be more reliable and accurate than doing gps-pings every now and then with my galaxy active tab2 somewhere in between two mountains.

(Of course resprecting the fact i don´t wheelie as much and as controlled as other members of this forum (looking at you joao))

but anyhow, seems like my idea isn´t coming to any usable outcome, so consider this thread as closed.

 

kind regards

Mirco

[Guzzist]

Hi Mirco,

only for professional use (Rallye racing), extra wheel sensor(s) are used with tripmaster(s). That’s in some cases a bit more precise. Search in stores of dealers for Rallye equipment like:

https://www.dr-big-shop.de/RallyeRacing_904.html

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[Mirco Kiemann]

ohhhhh, so i wasn’t wrong ideawise, this had been used fir distance measuring.

thanks for adding this!

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