dropping speed and OBD

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rck329
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dropping speed and OBD

Post by rck329 » Sat Apr 27, 2019 4:21 am

Is is just a coincidence that I am dropping speed and OBD info in some corners? OBD is a Tonwon BTLE, iphone 7 (lastest update). Gran Prix V22.1

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https://www.youtube.com/watch?v=36iz8VtbQ9A
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Harry
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Re: dropping speed and OBD

Post by Harry » Sun Apr 28, 2019 8:15 am

In case you had an OBD adapter working at any position of the track, LapTimer will display the engine gauges and use wheel speed for the whole overlay. I assume your OBD connection dropped at this position, so you get wheel speed 0 and 0 rpm. Besides analyzing your OBD connection for the future, switch OBD use in Overlay Configuration / second page to None for this lap to get a reasonable result (without engine data).

- Harry
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rck329
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Re: dropping speed and OBD

Post by rck329 » Mon Apr 29, 2019 6:07 pm

Thanks Harry, as soon as I posted I made the connection that it was using OBD for speed in the overlay. (I'm a little slow sometimes :-)

In expert settings I found "Force Overlay GPS Speed" - I re-exported and this at least fixed my speed overlay.


I'm going to switch to a OBDLink MX+ The Ton Won has seemed a little quirky since I've started using it - seems to drop the connection a lot.
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Harry
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Re: dropping speed and OBD

Post by Harry » Tue Apr 30, 2019 7:29 am

Dropping connection often signal an issue with speed optimizations applied by late LapTimer versions: try switching these Expert Settings / OBD Tweaks until the connection is stable:

Adaptive Timing ‣ Enabled
ECUs Addressed ‣ PCM
Disable Parallel Requests ‣ YES

The first and the last slow down communication, so do net set them as long as it is necessary.

Harry
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rck329
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Re: dropping speed and OBD

Post by rck329 » Wed May 01, 2019 1:16 am

Thanks very much. I will try those.
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