RE: Ecm role expanding?

["Rich Vandervoort" <richvandervoort@hotmail.com>]

Fault detection for the processor for functions like ABS, TCS, ECS, throttle 
by wire, ect. can use two processors on a single chip if any of the outputs 
of the two processors do not agree then the system is shut down.  This is 
not universal some systems do not have any output fault detection.  Some use 
two separate, but identical processors or separate and dissimilar processors 
that run different code.

Rich V.


<Date: Mon, 27 Nov 2000 16:43:36 -0500
<From: "Marteney, Steven J." <SMARTENEY@XLVISION.COM>
<Subject: RE: Ecm role expanding?
<
<Yes, but I'm sure they'll have a fault detection system that detects an
<erroneous WOT command and automatically turns on traction control? Or
<should you turn it off? Or, should you.... <CRASH>
<- -----Original Message-----
<From: JTesta1966@aol.com [mailto:JTesta1966@aol.com]
<Sent: Monday, November 27, 2000 2:13 PM
<To: gmecm@diy-efi.org
<Subject: Re: Ecm role expanding?
<
<
<In a message dated 11/27/00 2:09:09 PM Eastern Standard Time,
<nacelp@bright.net writes:
<
< You mean you haven't seen the rain dropplet sensing technology for
<Windsheild wipers?
<then in the great north they have to by law run with the head lights on
<when
<the wipers are on. So now, there are even fewer distractions for cell
<phoners.
<
<Yup..caddy's BCM's done this since the early 80's, my park ave is 
controlled
<
<by the BCM, the late model caddy's have a water sensor on the sunroof, or
<windshireld as Bruce said and turns the lights/wipers on automatically.
<
<Nice to diagnose problems with such a simple system huh?
<
<What scares me is this drive by wire deal thats in the new cars. Suppose 
the
<
<ECM in a corvette is having a bad day and goes WOT on its own...nice huh? I
<know the default, or failsafe id idle, but you never know...
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