__  __
 \ \/ /
  \  / 
  /  \ 
 /_/\_\
       

         
         
 ##  ##  
  ####   
   ##    
  ####   
 ##  ##  
         

         
 ##      
 ##      
 #####   
 ##  ##  
 ##  ##  
 ##  ##  
         

     _    
    / \   
   / _ \  
  / ___ \ 
 /_/   \_\
          

###      
 #####   
 ##  ##  
 ##  ##  
 ##  ##  
 ##  ##  
######   
         

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:
'''Ignition parameters for odd fire coil type configuration.''' As I understand, the Marelli microplex logic for starting the ignition is: ||On CamTooth 1|| START COUNT Crank teeth|| ||On CamTooth 2|| If CrankCount=2 then START IGNITION, (next cyl. is c2 90° from here|| In software they simply made a switch for the 12 cases given by the 12 teeth met in a 720° cycle. Also they simply put a constant 120° dwell time since there is always 120° (that is 30°+90° or 90°+30°)between the 2 previous teeth and the firing tooth. See here after BLEU : IgnitBiturbo1000.wav - JAUNE: IgnA - VERT IgnB http://i23.servimg.com/u/f23/15/63/46/75/microp10.jpg http://i23.servimg.com/u/f23/15/63/46/75/microp11.jpg '''Question''' Lets note the 6 tuples of 2 crank teeth which are seen by the VR sensor during a double revolution of 720 ° by the following: /t01/.30°./t02/ .. 90°.. /t03/.30°./t04/ .. 90°.. /t05/.30°./t06/ 90° /t11/.30°./t12/ .. 90°.. /t13/30°/t14/ .. 90°.. /t15/.30°./t16/ 90° Indeed cylinder numbering is not useful at this bench test stage. Although things are more involved we just want to exercise the VemsTune capabilities as a first attempt and observe with a scope what's coming out. So lets us ask Genboard to fire 10° before the following teeth /t01/ ..... 150° .... /t04/ .. 90°.. /t05/ ..... 150° .... /t12/ .. 90°.. /t13/ ..... 150° .... /t16/ .. 90°.. 1.1.90 with option Maserati for the triggers does not seem to configure events h[1] and ign output h[2]. What are the options to set from the VemsTune menus? * download the config from MembersPage/OddFireSixCyl ** dragndrop file to relevant dialogs ("primary trigger", "reftooth table"). This is the quick way to import the displayed settings (changed entries change to red) ** the ign outputs must be set to your ignout wiring Can we do odd firing with coil type triggers? How? The config used the individual cylinder spark delay. Anyway I don't even know on which crank tooth Firmware 1.1.90 start counting. I should make a triggerlog next time. So that we can help with ignout config that matches your wiring, fill this in: * What is the '''exact position of the 2 primtrig pulses coming after the second sectrig pulse ?''' * What is the cylinder that follows ? ** which ignout is that connected to ? * than list the remaining (5) cyl / ignout entries ** always mark the angle separation between the cyl/ignout entries (in a separate line, to be clear, 150 or 90 degrees) ---- '''Inj outputs''' - same order as ign Use the same injout entry as the ign (if topmost ign is, say, cyl3, topmost inj should be also cyl3 output for unbiased inj-angle positions).
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.