For anything you'd like to see added to Speeduino
By OldKamikaze
#64958
Hello,

Working on J35A4.

Would like to have/contribute/test to trigger patterns to J35/J30/J32 (they are looking very similar)
Patterns:
Crank: 12+12+0 (No missing)
Cam: 6+4+2 (2missing)

Funny thing J35a4 have 2 Cam sensors (180 degrees apart). Any advices on this one?

Is any dev on this one or code? What engine resembles this one? I'll take is a template.

Thnx to all in advance
User avatar
By PSIG
#64990
OldKamikaze wrote: Thu Sep 21, 2023 9:05 pmZCrank: 12+12+0 (No missing)
Cam: 6+4+2 (2missing)
I don't have that set of patterns on file. Your description does not appear to follow naming convention for + or - teeth, and does not translate to a valid pattern. Please provide a drawing, or image, or oscilloscope pattern, etc.
By OldKamikaze
#64996
PSIG wrote: Sat Sep 23, 2023 6:35 pm
OldKamikaze wrote: Thu Sep 21, 2023 9:05 pmZCrank: 12+12+0 (No missing)
Cam: 6+4+2 (2missing)
I don't have that set of patterns on file. Your description does not appear to follow naming convention for + or - teeth, and does not translate to a valid pattern. Please provide a drawing, or image, or oscilloscope pattern, etc.
Will do, have oscilloscope
By LPG2CV
#64997
Do you mean something simular to this, when you say 12+12+0?
Attachments
24-2.png
24-2.png (7.77 KiB) Viewed 2390 times
By OldKamikaze
#65008
LPG2CV wrote: Sun Sep 24, 2023 6:49 am Do you mean something simular to this, when you say 12+12+0?
I guess I do not understand labeling on trigger patterns.

It is just a disc with evenly spaced 12 tooth .
By OldKamikaze
#65009
Unfortunately my ECU declined to steam pulses, but this is what oscilloscope gave me.

See attached office file, making the cam gear
Attachments
Screenshot from 2023-09-24 18-15-12.png
Screenshot from 2023-09-24 18-15-12.png (73.72 KiB) Viewed 2331 times
(70.1 KiB) Downloaded 18 times
By OldKamikaze
#65010
There is no point using second cam sensor, as is at the cam picture i edited in this position we get cyl1 TDC. So sensor 1 is the best and easy to detect as is first to pick after missing tooth is 1 cyl TDC
Attachments
cam2.png
cam2.png (348.9 KiB) Viewed 2325 times
IMG_0890.JPG
IMG_0890.JPG (74.38 KiB) Viewed 2325 times
By OldKamikaze
#65017
Some filtering in human/binary form.

Every fifth tooth is a cylinder TDC. After missing teeth on cam, first tooth is 1 cyl TDC
Attachments
signal.PNG
signal.PNG (40.18 KiB) Viewed 2262 times
(213.77 KiB) Downloaded 22 times
By OldKamikaze
#65022
Important correction. I believe the line on a cam indicates the TDC, so it should look like this. TDC on a fall, not rise
Attachments
9BE3387C-9902-4BA5-AB12-D2864D11DFA2-1588-00000150D6208060.jpg
9BE3387C-9902-4BA5-AB12-D2864D11DFA2-1588-00000150D6208060.jpg (118.13 KiB) Viewed 2206 times
signalv2.png
signalv2.png (41.41 KiB) Viewed 2207 times
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