In a message dated 4/14/00 3:58:42 PM Eastern Daylight Time,
[EMAIL PROTECTED] writes:
<< I don't necessarily see the real process of what happens as a "feature" as
long as it happens.
SNIP
Anything that can be sold as advanced, new or better technology is spun in
the sales force as a feature. What you described would be tremendous in that
department. If that feature occured as a result of other engineering, it is
still touted as a feature.
A good analogy is that not many people are the least
bit concerned about the actual process of opening a fuel injector pintle
that takes place over a couple of microseconds. In reality--the computer
typically sends a larger current during initial opening to speed up the
process and force the injector open, then the current is reduced to a lower
level that will maintain the injector opening until the decision is made to
close the injector. See http://www.national.com/pf/LM/LM1949.html for a
justification for this statement. To the common consumer, or even the most
seasoned mechanic, it's a complete "don't care"--to the design engineer,
it's a way to save power (heat) in the electronics, increasing reliability.
SNIP
I disagree with your analogy. You describe something that is imperceptible to
the consumer in your analogy, however, in your ABS conclusion, it is
noticable, and could be concieved as advantageous. Something so minute as
varying voltages on individual injectors would be irrellevant to any one
other than the designer, I presume, unless you can use a scope to diagnose a
problem with them. What you described in your experience would be something
someone could feel it doing or not doing, therefore, a consumer would be
aware there is a problem, and, would expect a dealer to know that it does do
it, and be able to fix it. That is the difference, to me.
Granted, I only came across the information on ABS cycling by coincidence,
but I feel confident that I understand what I experienced.
SNIP
I did not disagree you experienced what you described. I took exception to
you finding something as significant as that, and being the first and only
one to know about it. Not that it didnt happen, that it was supposed to
happen, is where we differ.
I'm sure that there is more, but I don't think Yamaha is going to share
their software
flow diagrams any time soon. Basically, there is a lot more going on behind
the scenes than you will EVER find in a shop manual.
SNIP
Correct, there is a very real thing called proprietary information. Look at
any Yamaha graph of an ignition curve, two things you notice. First, there is
no numbers to equate any discernable values to the curve, rendering it
useless for anyone desiring to copy it or improve upon it, and second, there
is a note saying the graph is only representative of the idea (loosely
paraphrased) of the ingnition curve.
> Certainly, I respect your
>experience and insight. However, my understanding of how and why a
>corporation does what it does and does not do, will not allow me to believe
>you have uncovered something such as this.
I'm curious as to what exactly it is that I've uncovered that you find so
puzzling
SNIP
I am not puzzled by your findings. I do not feel what you found is inherent
to the design.
BTW--I enjoy the banter--the list has been too quiet lately and this thread
is even GTS related (for the most part.)
Terry Baker
>>
Agreed, we have their blood pumping again!
RSRBOB
