Autopilot Software Design

[sunfish]

Hopefully this is a simple question…

I am installing autopilot servos at the moment and adjusting arm positions etc. to ensure that no lever can go over centre and jam the controls. I will also install the range limiting bracket as well.

Question: I have performed the autopilot servo calibration routine which, I think establishes the range of motion for each servo from stop to stop.

Is there any condition where the Skyview software might try to drive the servo arm past the stops?

 

[Dynon]

The calibration does two things: 1) determines the correct direction of the servo motors and 2) ensures that the throw is reasonable. If it sees more than about 70 degrees of throw during calibration you'll see a warning / question on whether it's a capstan-equipped servo (which can rotate more then 70 degrees in some installations). It doesn't set hard limits on the servo though. Think of this way - in normal operation, the autopilot is saying "a little more left, a little more right, etc". In any normal flight, there is practically no way that you'll see more than even moderate deflection, so practically speaking, it's a non-issue. But ultimately, your aircraft stops are the primary defense, with the servo limiting bracket a backup if appropriate in your installation.