Re: [Paparazzi-devel] What's wrong with throttle control?

[Pascal Brisset]

Hi,

from a fresh svn extraction, in the "Holding point" block of basic.xml, 
changed with

   <attitude roll="0" throttle="0.5" vmode="throttle"/>

compiled with microjet5.xml airframe, it runs as expected in simulation 
(after clicking "resurrect" and "launch").

So ?

--Pascal

PS: Note that because of the POWER_CTL_BAT_NOMINAL flag set to 11.1 (V), 
the actual throttle will be 44% instead of 50% with a 12.5V battery level.

Steven Wawryk wrote:
> Hi,
>
> I'm trying to get a flight plan to partially spool up the throttle 
> before launch but I can't seem to get the pre-launch throttle to any 
> values other than 0% or 100%.
>
> When I set it to 0, the GCS reports 0%, when I set it to *any* 
> non-zero value, the GCS shows it slewing up to 100%.  It only seems to 
> be boolean until a control loop sets it after launch.  This happens 
> for both sim and ap targets. With ap, the throttle servo confirms it.
>
> I've tried it using <attitude roll="0.0" throttle="0.5" 
> vmode="throttle" until="suds_cld_launch_detected"/>, with other vmodes 
> and by setting each of v_ctl_throttle_setpoint and 
> ap_state->commands[COMMAND_THROTTLE] to MAX_PPRZ/2, but all give the 
> same result.
>
> Steve
>
>
>
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