Re: [Paparazzi-devel] Fixed wing: TRIM_ROLL

[Felix Ruess]

Ups, didn't read the question closely enough...

Yes, pitch is around the theta (y) axis.

Thanks for the correction Bart!

On Thu, Jun 30, 2016 at 11:46 PM, Bart Slinger <address@hidden> wrote:

Pitch is theta, right?

On Thursday, June 30, 2016, Steffen Spies <address@hidden> wrote:

Thanks Felix,

will give it a try!

Steffen

Am 30.06.2016 um 21:45 schrieb Felix Ruess <address@hidden>:

In the IMU section (with the prefix="IMU_") or define IMU_BODY_TO_IMU_PHI

On Thu, Jun 30, 2016 at 9:44 PM, Felix Ruess <address@hidden> wrote:

Ah, so that is not a trim, but a rotation between body and IMU frame which you should adjust via

<define name="BODY_TO_IMU_PHI"   value="11.0" unit="deg"/>

On Thu, Jun 30, 2016 at 9:37 PM, Steffen Spies <address@hidden> wrote:

Thanks Felix,

during a testflight we realized that there is an offset between the IMU and the plane of around 11° for pitch. 

Am 30.06.2016 um 21:13 schrieb Felix Ruess <address@hidden>:

Hi Steffen,

what exactly do you want to trim?

Each servo/actuator separately or a trim offset on the roll/pitch/yaw commands?

The latter you can do with the COMMAND_ROLL_TRIM, COMMAND_PITCH_TRIM, COMMAND_YAW_TRIM defines.

Or via settings (trim group in https://github.com/paparazzi/paparazzi/blob/master/conf/settings/control/ctl_basic.xml#L9)

Cheers, Felix

On Thu, Jun 30, 2016 at 7:24 PM, Steffen Spies <address@hidden> wrote:

Hi,

is TRIM_ROLL/TRIM_PITCH like shown on this page
http://wiki.paparazziuav.org/wiki/Release_Upgrades
also working on a fixed wing? Regarding this page it is rotorcraft only.
If not, what is used there for TRIM?

Thanks,
    Steffen

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