More UEGO stuff

[Steve Gorkowski]

They are probably using a digital control loop ( read the voltage with adc,
set the current with dac ). Regulating heater wattage also. Just another way
of controlling this sensor. When you have lots of margin dollars in the
product and a team working on it full time it would make sense .

Steve

Raymond C Drouillard wrote:

> On Tue, 2 Feb 1999 16:37:48 +1100 "Ross Myers" <ponty at axis.jeack.com.au>
> writes:
> >
> >
> >>Hi all,
> >>        I checked out the motec site (autronics also sell one) but
> these
> >>are too expensive for me .That is why I was hoping one could be built
> (even
> >>as a kit) at a fraction of the cost.Motecs unit is just right with the
> >>screen and sensor.
> >>Some of us race people are on tight budgets!
> >>PAUL
> >
> >
> >I know what you are saying Paul, but my point was if they felt the need
> for
> >a 32bit micro to run the thing something must be tricky.
> >
> >Regards
> >
> >Ross Myers
>
> Either that, or they want you to believe that it's tricky and pay the
> $$$$.  Even if there is a pressure and thermal sensor, it wouldn't take
> much processing power to calculate a true lambda reading from all of
> that.  Even if they are doing data logging...
>
> Ray
>
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