MembersPage/ErikEnglund/BmwWheelspeedDrop (2013-08-28 13:24:41)

BMW 328 e36 loosing wheelspeed signal over 152kmh.

656 pulses / 100kmh. So somewhere around 1000 pulses per sec it drops.

Is there a 1khz rc-filter on the wheelspeed input ?

I would like to change it to 2khz to allow the wheelspeed signal to max speed ( 260kmh )

Which components to change? Or is it software related?

http://vems.hu/files/ErikEnglund/Logs/bmw_ws.vemslog


Try lowering sensor signal min length, pulses closer than 6464uS (in your config) are dropped 656 Hz/100kmh ~= 997 Hz / 152km/h which is close to 1.5 mSec pulse time, close enough to be significant, lower it to around 2000 uS and report.