I read in another post about cruise control. It must be something other than what is used on an automobile as our engines already run by themselves.[?]
It’s what Lionel calls Odyssey.
You set a loco to a specific speed, and it maintains that speed regardless of grade, load, or drag.
Thanks Ben! I just couldn’t place it. BTW, the cruise control on my car does not stay on if the uphill grade is too steep or if the downhill grade makes the car go too fast. I wonder if the toy train control does the same?
I doubt that you’ll have a toytrain hill so steep that speed can’t be compensated or that the train won’t make it up a hill. If that should occur, ask yourself what you’re doing with trains or make sure that the train still is on it’s track and not driving down the stairs…
Hi Jack,
The curse control is adding marks on the flywheel of the motor and a censer and board to count the revolution of the flywheel. As long as the engine as enough voltage (command control) it will maintain the same speed up hill and down hills and even if you un-couple the train, the engine stays at the same speed.
By the way, this has been part of MTH PS2 engines since 2000 when they first came out with PS2. And think they don’t charge extra for it.

tom
The fly wheel is important .
It is the presence of the flywheel that will enable non PS-2 engines such as Williams and others to be upgraded to PS2.
Alan
I purchased my first engine with cruise control in March. A great great inovative feature. It runs so smooth up and down my 3% grade.