Bill Dennis wrote:
In 2003, I bought a LCD watch that had a 90mAh lithium battery. Just last
week, the cell finally went dead. By my calculations, that's only 1uA (3uW)
average. Now if I could only make my EV that efficient!
Indeed!
But that watch was designed in a different world view. The goal was to
do as much as possible with as little as possible. The circuits were
made as simple as possible, even though it took longer to design them.
The designers knew that every part takes power, so they minimized the
number of parts.
The modern world view is that power is "free". The customer pays for the
power, not the manufacturer; so don't bother to minimize it. If
anything, *maximize* power usage, and require special batteries (or use
non-replaceable batteries) to guarantee future sales.
And don't bother to minimize the number of parts; that takes time. Parts
are cheap; they can be bought from China for next to nothing. So
minimize your design time, and concentrate on getting it to market as
fast as possible. Quality and long life don't matter -- it will be
thrown out in a year or two, so who cares?
While you *might* someday see a car designed with the watchmaker's
philosophy, it's mighty unlikely. Instead, I think it's more likely that
we'll get cars built like laptop computers; absolutely jam-packed full
of parts, will only last a few years, and be non-repairable.
--
*BE* the change that you wish to see in the world. -- Mahatma Gandhi
--
Lee A. Hart, http://www.sunrise-ev.com/LeesEVs.htm
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