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Back to MembersPage/NanassyPeter '''15 minus 1 trigger installed on Inline 5 Audi engine''' Primary trigger is a 15-1 (yes, missing tooth!) crankwheel with [http://shop.vems.hu/catalog/product_info.php?cPath=1_12&products_id=107 GT101 HALL sensor] (which pulls down when it detects ferromagnetic material and leaves the signal high in the gap, as pulled up by the pullup resistor). * either falling or rising edge is OK with this, but falling is "sharper", so * primary_trigger=10 # (decimal 16); which means ** falling edge ** multitooth ** no filtering ** advanced filter off ** N-1 (N minus 1 active!!!) The falling edge (metal coming in) right after the missing tooth is 2 teeth+60degs = 48 crankdeg + 60 crankdeg = 108 crankdegrees BEFORE TOP DEAD CENTER (Cyl 1 ?). '''Secondary trigger (HALL)''' Pulse (falling or rising edge?) is set 10deg BEFORE primary trigger missing tooth. * trigger_tooth=02 # 00 .. 03 might be candidate, a good variable to play with * another_trigger_tooth=06 # next trigger tooth; 06 for sure * ign_tdcdelay=78 # (decimal 120) ign TDC-delay: 60deg ; should be fine first, adjust for good base timing when it runs * normal tooth width=1 * missing tooth width=2 * reset_engphase_after=1e # engine phase when to reset=30 ---- While we were lucky enough to get the engine running with totally misconfigured values (another_trigger_tooth=03 and reverse sequence ;-), it was running really poor and showed 2x higher RPM (than real). firmware version= ... ? Both mcd and mct are important to reproduce. '''mcd''' * alternate=04 * ignchmax=04 '''mct''' h[2]=.. .. .. ...
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