På Tue, 21 Sep 2004 12:02:34 -0500, skrev David Culp
<[EMAIL PROTECTED]>:
> I would suggest to use airspeed as input to a PID controller, your
> desired airspeed as reference and the elevator control surface as
output.
> I haven't tried this, so good luck!
Works like a charm :-) I got it stable
David Culp said:
> > > I would suggest to use airspeed as input to a PID controller, your
> > > desired airspeed as reference and the elevator control surface as output.
> > > I haven't tried this, so good luck!
> >
> > Works like a charm :-) I got it stable with: Kp=0.0125, Ti=30.0, Td=0.0
> > wi
> > I would suggest to use airspeed as input to a PID controller, your
> > desired airspeed as reference and the elevator control surface as output.
> > I haven't tried this, so good luck!
>
> Works like a charm :-) I got it stable with: Kp=0.0125, Ti=30.0, Td=0.0
> with the Piper. You can start fr
På Tue, 21 Sep 2004 12:00:09 +0200, skrev Roy Vegard Ovesen
<[EMAIL PROTECTED]>:
I would suggest to use airspeed as input to a PID controller, your
desired airspeed as reference and the elevator control surface as output.
I haven't tried this, so good luck!
Works like a charm :-) I got it stabl
På Mon, 20 Sep 2004 17:55:50 -0500, skrev David Culp
<[EMAIL PROTECTED]>:
Has anyone gotten "speed-with-pitch" autopilot mode to work properly
using only PID controllers? (i.e. without outside help from the xmlauto
internal code or some other system)
I don't see how the speed-with-pitch contr
David Culp wrote:
It seems to me the autopilot can't chose the correct pitch angle without some
knowledge of the current pitch angle, or the airplane's performance.
I think it wants to get a zero the angle-of-attack (alpha), which (in
theory) could be done by increasing the speed.
Erik
_
Has anyone gotten "speed-with-pitch" autopilot mode to work properly using
only PID controllers? (i.e. without outside help from the xmlauto internal
code or some other system)
I don't see how the speed-with-pitch controller in FlightGear's generic
autopilot can work even in theory. The firs