History of MembersPage/HelliouseVW
Older Newer
2008-02-29 23:46:08 . . . . MembersPage/MarcellGal [timing notes]
2008-02-28 21:51:47 . . . . HelliouseVW [Added few more Q's and comments on Common rail.]
2008-02-05 21:25:42 . . . . HelliouseVW [update to answers, Thanks for posting them!]
2008-01-21 16:58:12 . . . . MembersPage/MarcellGal [inj timing Q]
2008-01-14 23:31:46 . . . . HelliouseVW [Formating, clear up questions.]
2008-01-14 23:11:07 . . . . HelliouseVW [Formatting]
2008-01-11 17:10:06 . . . . HelliouseVW [Initial entry, 2008/01/11]


Changes by last author:

Changed:
I have another question around timing. How are you guys doing this? Is it with the tooth pulses? Or are you doing a count (usec)? If a count (usec) how are you accommodating for variation in engine load/throttle blip? By using tooth pulse count, and calculation with up to 3 timing inputs we can get timing down to degrees and possibly with good algorithms account for sudden engine load variation/throttle blip.
Timing question. How are you guys doing this? Is it with the tooth pulses? Or are you doing a count (usec)?

* usec timer from a certain tooth pulse

Changed:
Unfortunately I haven’t had time to create a simulation…lack of internet at home :’( I will get my butt in gear here to get something posted on it though.
If a count (usec) how are you accommodating for variation in engine load/throttle blip? (if I understand the question...)

We let the user use 60-2 wheel so timing error due to sudden RPM change becomes absolutely insignificant. It is negligible for a 12 tooth wheel (or timing from 30-40 degrees) anyway.

By using tooth pulse count, and calculation with up to 3 timing inputs we can get timing down to degrees and possibly with good algorithms account for sudden engine load variation/throttle blip.

Unfortunately I haven’t had time to create a simulation…lack of internet at home :’( I will get my butt in gear here to get something posted on it though.

Changed:
#Need an output for the pressure control solenoid, along with the fuel shut off solenoid (ignition/Drag safety feature, button)
#Need an output for the pressure control solenoid, along with the fuel shut off solenoid (ignition/Drag safety feature, button). Output should not be a problem. I guess it also requires an analog (mcp3208) input for feedback.