Re: Re: Re: Why is this?

Posted by Steve - IN on March 02, 2003 at 19:42:18 from (209.183.70.168):

In Reply to: Re: Re: Why is this? posted by Bob Semrau on March 02, 2003 at 19:01:02:

Bob,

Sounds reasonable. Now that I think about it, the buffering or averaging is probably mostly in the software of the MC6805 or HC11 or whatever they're using nowadays to do that sort of stuff. So based on what you say, it does housekeeping functions like checking that port from the tank on a power up reset -- then relegates the job to every few million clock cycles of the main loop, or actually figures a mean or median from a large number of samples (although that sounds like it might require too much memory to make sense).

Boogles your mind to think of all the little jobs the electronics in your car or truck are doing as you drive down the street. Also makes me wonder what was really gained by the gas gauge being integrated into an ECM. Old electric gauges work passably well, and can't cost all that much more -- but guess you can't integrate them into a digital display or some mpg and remaining range display toy -- oh, and the bell that sounds when you're low on gas. There you go -- that's worth the 1,000's of engineering man hours that went into the project!

Steve

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