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Today's Topics:
1. Re: another fatal crash (Eduardo lavratti)
2. Re: Paparazzi-devel Digest, Vol 98, Issue 92 (Eduardo lavratti)
----------------------------------------------------------------------
Message: 1
Date: Fri, 1 Jun 2012 05:34:02 +0000
From: Eduardo lavratti<address@hidden>
To: Paparazzi developer forum<address@hidden>
Subject: Re: [Paparazzi-devel] another fatal crash
Message-ID:<address@hidden>
Content-Type: text/plain; charset="iso-8859-1"
wow .. more friends with same problema.
well, i simulated this problem and re-checked all my config.
i changed some parameter in V_CTL and the simulation are working very well for
now.
try change your v_ctl with this parameters and publish the result here :
<section name="VERTICAL CONTROL" prefix="V_CTL_">
<define name="POWER_CTL_BAT_NOMINAL" value="16.0" unit="volt"/>
<!-- outer loop -->
<define name="ALTITUDE_PGAIN" value="0.05"/>
<!--<define name="ALTITUDE_PGAIN" value="0.0869999974966" unit="(m/s)/m"/>-->
<define name="ALTITUDE_MAX_CLIMB" value="4." unit="m/s"/>
<!-- auto throttle inner loop -->
<define name="AUTO_THROTTLE_NOMINAL_CRUISE_THROTTLE" value="0.5"/>
<define name="AUTO_THROTTLE_MIN_CRUISE_THROTTLE" value="0.4"/>
<define name="AUTO_THROTTLE_MAX_CRUISE_THROTTLE" value="0.9"/>
<define name="AUTO_THROTTLE_LOITER_TRIM" value="2000" unit="pprz_t"/> <!--
elevador trim para voo loiter (lento) -->
<define name="AUTO_THROTTLE_DASH_TRIM" value="-1500" unit="pprz_t"/> <!--
elevador trim para voo dash (rapido) -->
<define name="AUTO_THROTTLE_CLIMB_THROTTLE_INCREMENT" value="0.15"
unit="%/(m/s)"/> <!-- 0.1 -->
<define name="AUTO_THROTTLE_PGAIN" value="0.008" unit="%/(m/s)"/>
<!--0.02-->
<define name="AUTO_THROTTLE_IGAIN" value="0.25"/>
<define name="AUTO_THROTTLE_PITCH_OF_VZ_PGAIN" value="0.14"/> <!-- 0.05
pitch devido a erro altitude -->
<!-- auto airspeed and altitude inner loop -->
<define name="AUTO_GROUNDSPEED_SETPOINT" value="15.0" unit="m/s"/>
<define name="AUTO_GROUNDSPEED_PGAIN" value="0.75"/>
<define name="AUTO_GROUNDSPEED_IGAIN" value="0.25"/>
<define name="AUTO_PITCH_PGAIN" value="0.145"/>
<define name="AUTO_PITCH_IGAIN" value="0.025"/>
<define name="AUTO_PITCH_MAX_PITCH" value="RadOfDeg(25)"/>
<define name="AUTO_PITCH_MIN_PITCH" value="RadOfDeg(-25)"/>
<define name="THROTTLE_SLEW_LIMITER" value="2" unit="s"/>
</section>
Date: Fri, 1 Jun 2012 09:22:40 +0530
From: address@hidden
To: address@hidden
Subject: Re: [Paparazzi-devel] another fatal crash
Hi all,
I am also using the latest repository, yesterday I found when i engage
AUTO2 throttle stops completely. In Manual I could fly well but moment I engage
AUTO2 throttle gets cut and aircraft starts falling down. Anybody please
suggest how to rectify this problem? I am also trying to find the reason for
the throttle cut, but nothing clicked yet.
Another problem I faced was during flight In Auto2 Iam unable to change the
gains from the Ground control station? When on Ground I tried this exercise of
changing gains in AUTO2 it works well. Are there any altitude limitations? or
I should ensure Aircraft is level? or any other settings that needs to be done?
Kindly help