[Diy_efi] DDIS on DIY-EFI Page

Tue Jun 11 14:02:39 GMT 2002

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Hi Guys,

I'm a first year microelectronic engineering student and just finished a =
whole semester on the 68hc11, i bought a development board which should =
arrive mid next week to play with...

The question I have is, not about the software but rather how does the =
DDIS project and many like it determine exactly where the "teeth" of the =
crank-angle sensor are at startup and the RPM etc...

Could somebody tell me what kind of routine they are using to not detect =
the pulses but to decide exactly where the crank-angle sensor is etc... =
I know it sounds simple(look for the missing tooth)... How are others =
attacking this problem?

Thanks
Matt Donohoe

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<DIV><FONT face=3DArial size=3D2>Hi Guys,</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I'm a first year microelectronic =
engineering=20
student and just finished a whole semester on the 68hc11, i bought a =
development=20
board which should arrive mid next week to play with...</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>The question I have is, not about the =
software but=20
rather how does the DDIS project and many like it determine exactly =
where the=20
"teeth" of the crank-angle sensor are at startup and the RPM =
etc...</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Could somebody tell me what kind of =
routine they=20
are using to not detect the pulses but to decide exactly where the =
crank-angle=20
sensor is etc... I know it sounds simple(look for the missing tooth)... =
How are=20
others attacking this problem?</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Thanks</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Matt Donohoe</FONT></DIV>
<DIV>&nbsp;</DIV></BODY></HTML>

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