[Diy_efi] Ion Sensing project

[Bernd Felsche]

Ville Vartiovaara tapped away at the keyboard with:

> > Terve Ville,
> > 
> > I have some MSD patents somewhere in my files that I can look at to see what
> > the recharge voltages are. I'll see if I can dig something up tonight

> That'd be nice, as the fact remains that the higher the inonizing voltage
> the more clear the pressure curve, until the voltage is so high that it
> is able to continue keeping the arc path open after the ignition is over.

The 1999 Bosch paper (SAE 199-01-0204) describes a 150 to 200V ion
current voltage. I recommend that you try to borrow or buy a copy of
that paper which appears along with others in "Electronic Engine
Controls 1999" published by SAE (catalogue No. SP-1418)
[ISBN 0-7680-0350-4].

It also discusses the probablities of false positives and false
negatives in knock detection.

-- 
/"\ Bernd Felsche - Innovative Reckoning, Perth, Western Australia
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