MembersPage/RobertOffner (2005-07-08 18:06:35)

First I have to solve the Input Trgger Problem. Fiat uses two Trigger. The first is two times per Crank Rev. on TDC Cyl. #1 and TDC Cyl. #2. The second is on the Starter Gear with 122 teeth. It is a Setup nearly as Audi Trigger but without Cam Trigger. I will use wasted Spark with two Double Output coils from a Cinquecento. How can I solve the Input Trigger Problem? Is it necsassery to make a small Boart with a 2313 and if I do so at which degree should go the Level up and down? Is it possible to use only the Trigger every 180 degree? The Fiat Uno (without Turbo) uses a 4+1 Trigger wheel with a Trigger every 90 deg. and two at TDC, is this easyer to use? Sorry for my English, some words I don't know in English. Maybe somebody can show me a way. Thank you all.

'''This trigger arrangement doesn't make much sense to me, the 180 degree trigger combined with the 122 teeth wheel can't syncronize the engine to run waste spark ignition.

But, if the 180 degree trigger is really made up of two pulses of different length it would make sense as the number of teeth sensed during the two different 180deg pulses would be different (Nissan use this way to trigg their engines.) This is currently not supported and it's very hard to support because of the trigger frequency, the audi trigger board could be adapted to use this trigger.

Is the 4+1 trigger four pulses from one sensor and one pulse from an other sensor or is it a dual tooth on a single triggerwheel at #1 and #4 TDC?

I would keep the 180deg signal and trigg from it and I would put a home sensor on the crank to get the engine phase right. -Jörgen

'''

BTW Genboard is the best. I like Atmel, i made a few things with mega8 and mega32 so I know them and I also can program in C but the Code is more difficult than mine and i need some time to understand it. If i survive with Genboard i will try to help you with some documentation if you want.