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ed_ma61
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May 2002
Re: Knock Sensor Circuit Design ... Wed, 23 July 2003 00:17 Go to previous messageGo to previous message
humble wrote on Wed, 23 July 2003 03:22

IMO, the engine RPM/AF ratio/Intake air temp and AFM (or MAP/TPS) signal presets can be used to create a "potential knock zone" trigger succesfully, by marking conditions that are most likely to cause knock. The knock sensor trigger can be a secondary "shit, it's all bad" trigger.


humble,

thats basically what i went to bed thinking...

please, feel free to make a black box that processes RPM/AF ratio/Intake air temp and AFM (or MAP/TPS) signals Nod

alternatively, a simpler solution might be to have it based on a threshold of RPM and throttle position. ie over 3000rpm and 70% throttle (thanks allan) with the kncok sensor as a secondary override for the, as you say "shit, it's all bad" conditions...

[Updated on: Wed, 23 July 2003 00:19]

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SubjectPosterDate
Read Message   Knock Sensor Circuit Design ... ed_ma61Tue, 22 July 2003 04:50
Read Message   Re: Knock Sensor Circuit Design ... Cool1Tue, 22 July 2003 05:41
Read Message   Re: Knock Sensor Circuit Design ... ed_ma61Tue, 22 July 2003 05:45
Read Message   Re: Knock Sensor Circuit Design ... rogerTue, 22 July 2003 05:46
Read Message   Re: Knock Sensor Circuit Design ... ed_ma61Tue, 22 July 2003 05:52
Read Message   Re: Knock Sensor Circuit Design ... oldcorollasTue, 22 July 2003 05:58
Read Message   Re: Knock Sensor Circuit Design ... ed_ma61Tue, 22 July 2003 06:10
Read Message   Re: Knock Sensor Circuit Design ... sideshowTue, 22 July 2003 06:13
Read Message   Re: Knock Sensor Circuit Design ... ed_ma61Tue, 22 July 2003 06:26
Read Message   Re: Knock Sensor Circuit Design ... Cool1Tue, 22 July 2003 06:39
Read Message   Re: Knock Sensor Circuit Design ... ed_ma61Tue, 22 July 2003 06:52
Read Message   Re: Knock Sensor Circuit Design ... ed_ma61Tue, 22 July 2003 06:58
Read Message   Re: Knock Sensor Circuit Design ... Cool1Tue, 22 July 2003 07:03
Read Message   Re: Knock Sensor Circuit Design ... ed_ma61Tue, 22 July 2003 07:08
Read Message   Re: Knock Sensor Circuit Design ... oldcorollasTue, 22 July 2003 08:10
Read Message   Re: Knock Sensor Circuit Design ... ed_ma61Tue, 22 July 2003 10:01
Read Message   Re: Knock Sensor Circuit Design ... Cool1Tue, 22 July 2003 09:00
Read Message   Re: Knock Sensor Circuit Design ... Cool1Tue, 22 July 2003 07:01
Read Message   Re: Knock Sensor Circuit Design ... sideshowTue, 22 July 2003 12:14
Read Message   Re: Knock Sensor Circuit Design ... ed_ma61Tue, 22 July 2003 12:37
Read Message   Re: Knock Sensor Circuit Design ... AllanTue, 22 July 2003 12:41
Read Message   Re: Knock Sensor Circuit Design ... ed_ma61Tue, 22 July 2003 12:55
Read Message   Re: Knock Sensor Circuit Design ... sideshowTue, 22 July 2003 12:43
Read Message   Re: Knock Sensor Circuit Design ... ed_ma61Tue, 22 July 2003 13:02
Read Message   Re: Knock Sensor Circuit Design ... AllanTue, 22 July 2003 13:12
Read Message   Re: Knock Sensor Circuit Design ... ed_ma61Tue, 22 July 2003 13:26
Read Message   Re: Knock Sensor Circuit Design ... ed_ma61Tue, 22 July 2003 14:26
Read Message   Re: Knock Sensor Circuit Design ... humbleTue, 22 July 2003 17:22
Read Message   Re: Knock Sensor Circuit Design ...  ed_ma61Wed, 23 July 2003 00:17
Read Message   Re: Knock Sensor Circuit Design ... NorbieWed, 23 July 2003 00:14
Read Message   Re: Knock Sensor Circuit Design ... AllanWed, 23 July 2003 02:19
Read Message   Re: Knock Sensor Circuit Design ... ed_ma61Wed, 23 July 2003 03:02
Read Message   Re: Knock Sensor Circuit Design ... E30-323tiWed, 23 July 2003 03:11
Read Message   Re: Knock Sensor Circuit Design ... ed_ma61Wed, 23 July 2003 03:20
Read Message   Re: Knock Sensor Circuit Design ... E30-323tiWed, 23 July 2003 03:34
Read Message   Re: Knock Sensor Circuit Design ... ed_ma61Wed, 23 July 2003 03:40
Read Message   Re: Knock Sensor Circuit Design ... ed_ma61Wed, 30 July 2003 11:48
Read Message   Re: Knock Sensor Circuit Design ... -Mark-Wed, 30 July 2003 13:22
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