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Summary of change:
http://vems.hu/download/sensors/triggerwheels/Extrapulse_triggerwheel_m.jpg The picture is 4+extrapulse (never call it 4+1 please ! that is reserved for evenly spaced primarytrigger with 1 pulse sectrig ). * Remember that VEMS is "versatile": it could be 6+extrapulse, 8+extrapulse, 12+extrapulse (suitable for 3,4,6,8 cyl), 3+extrapulse, 5+extrapulse, ** or N+extrapulse as long as integer number of normal pulses pass for each engine-event. When used for primary trigger, it is called '''extrapulse trigger''' (supported since firmware 1.1.96) * a low-pulsecount but relatively precise trigger ** '''might be a good compromise for home-made trigger wheels.''' * say, 6+extrapulse is less work than 12-2 ** but better than 6 evenly spaced "coil-type" pulses (which requires camsync and also, one must make sure camsync and crank pulses are not very close - that would cause problem with cambelt sloppyness). ---- '''When used for secondary trigger''': also supported (eg. BMW S50 / S54 double-vanos engines variable position exhaust cam): sectrig dialog can be configured to ignore sectrig above a certain primtrig tooth ("secignore" variable). '''IMPORTANT: To avoid confusion''' (especially when extrapulse trigger is used for sectrig),''' make sure to report details of BOTH primtrig and sectrig'''. ---- [http://www.vems.hu/files/sly/Extratooth/v3.2_k000114-2012-06-26-03.48.32.triggerlog 2012-06-26 triggerlog] posted on Chat * this seems 8+extratooth, (tooth width=45 crankdeg assuming ** the extrapulse splits the 45 crankdeg as 15,30 ** so the full pulsetrain is: '''15,30, 45,45,45,45 ,45,45,45''' * config would be nice too, but as far as the trigger-settings are concerned we can make from scratch (using the bottom of primary trigger dialog, eg "honda extrapulse") TODO: * see pulsetrain pattern * make proper config and benchtest with 1.2.4 * and see how inj and ign behaves See 1.1.96 ("extrapulse") on GenBoard/UnderDevelopment/FirmwareChanges
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