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Re: mUI V2 for Nokia N900 (0.2.3 2013-09-26 with GPS support

Posted: Fri 27. Sep 2013, 06:00
by designer2k2
100hz is impressive 8-)

to compute engine power/torque you could already use the speed input (when there is no tire slip), as "delta(speed/time)" should be identical to the acceleration reading (hopefully)

G reading is interesting on the 1/4mile, you can clearly see how long shifting is realy interrupting the acceleration, so the true shift-time can be calculated.
(and with the g/rpm/throttle/boost/clutch/speed a real analysis of the shift timing can be done :magic:

Re: mUI V2 for Nokia N900 (0.2.3 2013-09-26 with GPS support

Posted: Fri 27. Sep 2013, 20:36
by bofh
does it make sense to store the acceleration data at higher frequency ?

Re: mUI V2 for Nokia N900 (0.2.3 2013-09-26 with GPS support

Posted: Sat 28. Sep 2013, 19:11
by designer2k2
Not realy. But if you read it at 100hz you could smooth it a little (moving average of last maybe 10) to get a more stable result

Gesendet von meinem GT-I9505 mit Tapatalk 4

Re: mUI V2 for Nokia N900 (0.2.3 2013-09-26 with GPS support

Posted: Sat 28. Sep 2013, 23:21
by bofh
gps data example:

Code: Select all

#md timestamp   gps time        gps coordinate  gps speed       gps directon    GPSHorizontalAccuracy   GPSVerticalAccuracy
316488  Fr. Sep 27 18:33:39 2013        49° 12' 6.6" N, 7° 1' 21.9" E, 192.5m   62.928  132.95  142.18  181 
https://maps.google.com/maps?q=49%C2%B0 ... 2&t=h&z=18

gps speed 62,9
md speed 64 km/h