_______ (_____ ) /'/' /'/' /'/'___ (_______)
### ### ### ## ## ## ## ####
#### ## ## ###### ## #####
### ## ## ## #### ## ## ####
|\ /| | ) ( | | | _ | | | |( )| | | || || | | () () | (_______)
IMPORTANT: enter the case-INsensitive alphabetic (no numbers) code AND WRITE SOME SHORT summary of changes (below) if you are saving changes. (not required for previewing changes). Wiki-spamming is not tolerated, will be removed, so it does NOT even show up in history. Spammers go away now. Visit Preferences to set your user name Summary of change: '''BMW S54''' '''Very important: S54 needs 4 PFET outputs (high-side drivers) for the vanos actuators.''' Any other setup is not supported (driving vanos actuators directly from p259 outputs not supported). According to our knowledge, for S54, it's enough to just * "S54 high-side drivers for VANOS: 4-PFET outputs" in the order comment * set up measurement * and verify that the configuration+wiring makes the '''desired cam''' (this was verified, but please take note of wiringbelow) ** move into the '''desired direction''' (this wasn't verified, and very likely to be reversed) ** messing up either will cause the control to not work. * according to: [http://vems.hu/vt/help/v3/v3_camshaft_angle_control.html VT help] ** see the Dual Vanos Output type: Measured = 0 ... target - 2 deg - PWM-ing range : '''OutputA active''' and OutputB inactive , '''when Cam pulse too late'''... '''So OutputA should be connected to the actuator that advances the cam when activate''' We'll see if this engine happens to show something tricky. ---- '''Trigger''' VR, HALL, HALL * primary trigger VR 60-2 * sectrig HALL: missing 8-1 (exhaust cam) * thirdtrig HALL: 6 evenly spaced tooth (intake cam) ---- '''Cam actuators''' * manually actuated outputs actuate the cam, but * not configured properly ---- '''Cam actuator wiring: FILL IN''' * * * * ---- '''Trigger errors''' '''Engine is running well''', but trigger error is lit continuously... * sectrig position measurement ? ** '''position change not seen even when manually actuated (and cam obviously moving)''' * third trig measurement ? ** position change not seen even when manually actuated (and cam obviously moving) ---- http://vems.hu/files/MembersPage/poweredracing/BMW_S54/2txps54cam.png ---- '''triggerlog ?''' Note: [http://vems.hu/filethingie.php?action=list&subdir=MembersPage/poweredracing/BMW_S54/misclogs old log files] were not captured with this method, and not suitable to reproduce what is going on. Capture triggerlog: * start capture triggerlog (preferrably 115200 baud) * starting engine (this should be in the log) * advancing cam (actuating manually) * engine might stop because of this * don't forget to name/annotate the log, taking note of what is happening, so it's possible to find (among dozens of other) * preferrably a vemslog should be captured with similar sequence (it's another attempt, as it's not possible to capture 60-2 triggerlog and vemslog at the same time because of baudrate limitation) Optional: Add document to category: Wiki formatting: * is Bullet list ** Bullet list subentry ... '''Bold''', ---- is horizontal ruler, <code> preformatted text... </code> See wiki editing HELP for tables and other formatting tips and tricks.