Skip to main content

Replies sorted oldest to newest

The diesel RPM sound is directly controlled by actual engine speed as indicated by the striped-flywheel sensor feedback.  Of course this is proxy behavior.

In conventional, let's say the diesel is humming along at a mid-range RPM sound and approaches a steep uphill grade and slows down or even stalls.  Track voltage is the same...but the engine/flywheel slows or stops.  The sound will rev down.

In conventional if the flywheel tape falls off or the tach sensor is damaged, you lose cruise-control and the engine runs at "full speed" (whatever speed full track voltage can sustain).  This is because the electronics is getting no feedback from the tach and "thinks" the engine is stopped and hence applies the max voltage available.  So even if you crank up track voltage with the diesel ripping around the track, if you listen carefully the diesel RPM sound will be at the lowest (zero speed) setting! 

Add Reply

Post
This forum is sponsored by MTH Electric Trains
×
×
×
×
Link copied to your clipboard.
×
×