Pull Level for phase

Testing and development of Megasquirt 3

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Pull Level for phase

Postby AbatelliCristian » Tue Oct 24, 2017 1:22 pm

Hi guys,
I have a question. I hade make a composite log with log cranck&cam I attach photo1.
I have 60-2 with tooth#1 86. 5cyl
I thought the right way was pull level = low and check at tooth=>0 or =>60 (depends on the cam position). Actually there is no sync.
The only working configuration is that in the photo2.
What is the correct logic for the pull level?

Other question. In actual firmware, if cam is fault in 5 cyl engine, can work in semisequential ? (from my test, I think no) If no, is possible implement it?

Regards Cristian
Attachments
Screenshot 2017-10-24 21.47.44.png
photo 1
Screenshot 2017-10-24 21.47.44.png (78.48 KiB) Viewed 133 times
Screenshot 2017-10-24 22.11.18.png
photo 2
Screenshot 2017-10-24 22.11.18.png (172.6 KiB) Viewed 133 times
AbatelliCristian
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Re: Pull Level for phase

Postby Matt Cramer » Wed Oct 25, 2017 6:32 am

Your posts imply this engine has VVT. How far is the cam capable of moving?
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Re: Pull Level for phase

Postby flycat » Wed Oct 25, 2017 6:59 am

On Fiat 20v 5cyl the vvt is on/off and it move intake cam of 9°

Bye, Luca
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Re: Pull Level for phase

Postby AbatelliCristian » Wed Oct 25, 2017 8:01 am

Your posts imply this engine has VVT. How far is the cam capable of moving?


Hi Matt,
I think, I can use pull level with VVT or without VVT. For me is good system because I have "windowing" for listen the cam sensor.
But my question is:
what is really number of "check at tooth"? which is the angular window? and if I have 60-2, the check at tooth"4" is = check at tooth "64"? The actual code, count tooth in 360° or 720° (60 tooth or 120 tooth)? the setting "low" or "high" level is corresponding at low and high of the composite log?

thanks for replay

Regards
Cristian
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