[Paparazzi-devel] Auto throttle values in airframe configuration file.

[Helge Walle]

Thanks a lot Gautier,

 

I will try and enter a value for the nominal cruise throttle as close as possible to the real level flight cruise throttle.

By experiment in Manual yesterday it seems to be a little less than 60%.

 

Helge.

 

 

 

 

Hello,

Le 27/06/2010 20:28, Helge Walle a écrit :
Referring to the following lines:
 
   <define name="AUTO_THROTTLE_NOMINAL_CRUISE_THROTTLE" value="0.65" unit="%"/>
   <define name="AUTO_THROTTLE_MIN_CRUISE_THROTTLE" value=".4" unit="%"/>
   <define name="AUTO_THROTTLE_MAX_CRUISE_THROTTLE" value="1" unit="%"/>
 
Does value="0.65" mean 65% ?
yes

I wonder if unit="%" is of any importance to the meaning of the value.
no

Also, are the _NOMINAL_, _MIN_ and _MAX_ values important to fine tuning of the aircraft?
The "nominal" value, is mainly the default value for the cruise throttle. It is also used to compute a trim when the throttle is far from its nominal.
The "min" and "max" are of course the maximum value for the cruise throttle, which is different from the final throttle value :
throttle = cruise + pre-command + pid control on vertical speed error

 
Thanks,
Helge.

Gautier