ION EGOR

[steve ravet]

Wayne Blair wrote:
> 
> At the risk (certainity) of appearing as a drongo would it be possible
> to getta summary of the intent and direction etc of these things called
> 
> ION and EGOR.

EGOR is/will be a real wide range O2 sensor.  O2 sensors used in cars now only indicate rich/lean, you don't have any idea how rich or how lean.  You can buy $30 O2 meters with 10 or more LED segments
that claim to measure mixture, but they don't work.  EGOR uses a different type of O2 sensor and some circuitry to accurately indicate the mixture over some range around stoich.

ION is a device that detects combustion quality.  Mostly it's used to detect knock, but the WWW pages I've read indicate that there's lots more information to be extracted from the ionization
current.  The way it works is, after the spark is applied to the plug, a different circuit applies much lower voltage across the plug gap (80-400 volts, not enough to form an arc).  Because of ions
formed during combustion, some small current flows across this gap.  By looking at the amount of current, you can tell how if the mixture detonated or not.

The EGOR project was reverse engineered from a lean burn system that Honda put into some Civics or Accords.  The ION project comes directly from patents that Saab owns.

--steve

--
Steve Ravet
steve at imes.com
International Meta Systems
www.imes.com