On Tue, 7 Mar 2006 18:15:48 -0800, "Jeff Strickland" <[email protected]
>"Bonehenge" <[email protected]> wrote in message
>> On Sun, 5 Mar 2006 10:39:47 -0800, "Jeff Strickland" <[email protected]>
>>>I've never had a car with both a light and a guage, and never one with a
>>>buzzer. Watch the guage, and react to what it is doing, and you'll not
>>>need either the light or the buzzer.
>> Both are actually useful. Implementing both is neither difficult or
>Well, you are right enough, but I see no point. I watch my guages as I
>drive, and I see no use in a light to tell you the guage reads zero, or
>whatever it takes to turn the light on. Personally, I'd be alarmed long
>before the light came on.
The warning light isn't there for you, or anyone who actually checks
their dashboard gauges on a regular basis.
The light is there for all the Teenagers and Soccer Moms, the
Pointy-Haired Bosses and middle managers who will be driving that car
- the people who don't know or care what a gauge is. The people who
don't even know how to open the hood and check the oil, the people
that pay for Full Serve gas.
All they know is "When the red light comes on, you pull over and
stop the engine, and call for help."
After the smoke clouds from under the hood get their attention.
<Humor Alert - some slightly over-the-top thinking ahead>
If I was engineering a car, they'd have both gauges and lights - and
a safety system featuring voice prompt recordings by Majel Barrett
(Unfortunately Jack Wagner is no longer available to do it. As in
"Remain Seated, Please; Permanecer Sentados, Por Favor." Jack Who?
find out, you heathen!) ;-P
The EFI Computer already monitors several senders on the engine. It
would be trivial to add a few more sense points (radiator temp, block
coolant temp and pressure, oil level in sump, trans temp and the line
pressure at several points) and have a sub-system monitor all critical
systems - and warn the clueless when they were out of range, before
the trouble starts. And if you ignore the advance warnings, you get:
<Bong!> "Warning: Engine Oil Pressure Failure - Engine Oil Level
Critical Low. Engine Shutdown in thirty seconds, pull over to a safe
stopping location immediately or push the "Emergency Override" button
now to continue." <Bong!> "Engine Shutdown in twenty seconds, pull
over to a safe stopping location..." <Bong!> "Engine shutdown in
ten, nine, eight, seven, six..."
And the computer records the Override button pushes in NVRAM along
with the trip data - because you know that's the person who was late
to work and wanted to keep going, and who'll try a warranty claim on
the seized motor.
--<< Bruce >>--
Bruce L. Bergman, Woodland Hills (Los Angeles) CA - Desktop
Electrician for Westend Electric - CA726700
5737 Kanan Rd. #359, Agoura CA 91301 (818) 889-9545
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