Makes sense to me! Amazing what technology in lurking in there.....we hope
it is for good.....
It does make you think that with this much involvement with computers we may
all be vulnerable to problems like Toyota has run into....do you suppose
they buy their software from Microsoft? :-)
-----Original Message-----
From: shop-talk-bounces@autox.team.net
[mailto:shop-talk-bounces@autox.team.net] On Behalf Of Randall
Sent: Sunday, April 11, 2010 5:50 PM
To: 'shop-talk'
Subject: Re: [Shop-talk] How do they do that?
> So listers, how does the car's computer system immediately
> recognize that I
> have just dumped in a load of higher octane gas?
You're basically driving a mobile fuel laboratory! With a knock sensor, the
ECU advances the spark until it gets knock (and backs off just a bit); which
gives it a pretty good estimate of octane. And since it also has to adjust
the mixture until the O2 sensor reports that it's perfect, it's got a good
estimate of how much energy per gallon is in the fuel.
Randall
_______________________________________________
Shop-talk@autox.team.net
Donate: http://www.team.net/donate.html
Suggested annual donation $12.96
Archive: http://www.team.net/archive
Forums: http://www.team.net/forums
Unsubscribe/Manage:
http://autox.team.net/mailman/options/shop-talk/gerrybraz@cablespeed.com
_______________________________________________
Shop-talk@autox.team.net
Donate: http://www.team.net/donate.html
Suggested annual donation $12.96
Archive: http://www.team.net/archive
Forums: http://www.team.net/forums
|