JPS1 SD70Dude The computer may have decided to warm the engine or initiate a turbo cool-down cycle, both of which I have seen given as reasons on the computer screen. Sometimes the computer does not give a reason. In what ways is the locomotive, i.e. diesel, motors, controls, etc. controlled by a computer(s)?
SD70Dude The computer may have decided to warm the engine or initiate a turbo cool-down cycle, both of which I have seen given as reasons on the computer screen. Sometimes the computer does not give a reason.
Sometimes the computer does not give a reason.
In what ways is the locomotive, i.e. diesel, motors, controls, etc. controlled by a computer(s)?
Next time you take your daily driver to a shop - have them plug a full function OBD2 (On Board Diagnostics 2nd Generation)reader into your car's OBD2 port - you will be amazed at all the functions that are measured and controlled by the computer. Without computers today's internal combustion engined - be that gas or diesel don't operate.
The 'cheapie' OBD2 readers you see On Line and at Auto Parts stores, show a number of the generic mesasurements, the manufacturer specific readers reveal all - what all is measured and used to insure proper combustion of the fuel will amaze you.
Never too old to have a happy childhood!
Pretty much all of it.
Once upon a time control was all analog electrical and mechanical. Lots of switches, relays, flyball governor, rheostats.
In the 1960s, some solid state items got added to the mix. Transistors and diodes.
In the 1980s, integrated circuits were added, and finally microprocessors.
In the 1990's electronic engine controls were introduced.
There's really nothing left that's not under the control of a microprocessor.
-Don (Random stuff, mostly about trains - what else? http://blerfblog.blogspot.com/)
SD70DudeModern locomotives often rev up their engines for no apparent reason, not just low air pressure.
Our rebuilt 60s are always screaming, it seems. But they settle down by the time you have to move again.
It's been fun. But it isn't much fun anymore. Signing off for now.
The opinions expressed here represent my own and not those of my employer, any other railroad, company, or person.t fun any
Modern locomotives often rev up their engines for no apparent reason, not just low air pressure.
The computer may have decided to warm the engine or initiate a turbo cool-down cycle, both of which I have seen given as reasons on the computer screen.
Greetings from Alberta
-an Articulate Malcontent
My GUESS!
Charging up the air brake system - may have had, for whatever reason, a Main Resevoir pressure reading that was below the acceptable limit.
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