Re: [Paparazzi-devel] First Flight lisa/m fixedwing...throttle auto 2 problem...

[Felix Ruess]

Hi Luis,

you can simply limit the effective throttle pwm command that is sent to your motor controller using the max attribute of your throttle servo (e.g. reducing max from 2000us to 1500us will give you half of the maximum throttle the motor can do).

In effect it will just scale the throttle command from paparazzi differently, you can still have a 100% throttle command, but for your motor controller it will map to less.

Cheers, Felix

On Thu, Oct 31, 2013 at 3:03 AM, Luis Carlos <address@hidden> wrote:

Hi Eduardo...I need to limit because my plane is overpowered...in manual model with 50% of throttle its much power....100% in auto the plane go to  35m/s...and give much inertia and probably broke my wings... for a safety i need to limit... for start tuning the plane

Luis Carlos

El oct 30, 2013 8:45 p.m., "Eduardo lavratti" <address@hidden> escribió:

Luis, way you want to limit the throttle ?
When i need to limit the throttle i limit in the servo settings.
So.... the 100% PID throttle command represent 50% in the servo output.

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Date: Wed, 30 Oct 2013 21:27:42 -0300
From: address@hidden
To: address@hidden
Subject: Re: [Paparazzi-devel] First Flight lisa/m fixedwing...throttle auto 2 problem...

Hi..my settings I no use The baro...I read the wiki and not found yet a settings for use the aspirin baro and calibrate properly...in my next fly I tried to low throttle setting pid and test...I have no idea how to limit the throttle...for example to 50% and The ap no put the throttle under this limit...

Luis Carlos

El oct 30, 2013 7:52 p.m., "Jorn Anke" <address@hidden> escribió:

Hi,

Last time I was flying with the Lisa/M (maybe 10 months ago) there was, as I understood it, no use of the onboard aspirin barometre. So altitude must have been taken from the gps, which in turn must have ment the altitude was estimated pretty roughly. At the time, also I observed throttle was used extensively - which I believed was because the ap was trying to correct for perceived altitude deviations.

Out of curiousity; could the throttle behaviour Luis has observed have anything to do with handling of perceived altitude/ lack of correct barometre settings?

Cheers,

J     

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Date: Tue, 29 Oct 2013 17:01:24 -0300
From: address@hidden
To: address@hidden
Subject: Re: [Paparazzi-devel] First Flight lisa/m fixedwing...throttle auto 2 problem...

photogrammetry aplication...eduardo
Luis Carlos

El 29/10/2013 16:56, "Eduardo lavratti" <address@hidden> escribió:

I think you auto throttle P_GAIN  is too high.
For the first flights use throttle I_GAIN as 0 (zero)

BTW, i think roll setpoint as 35deg is too low.

Voce ainda nao disse qual seu uso para o paparazzi.

---

Date: Tue, 29 Oct 2013 16:41:28 -0300
From: address@hidden
To: address@hidden
Subject: Re: [Paparazzi-devel] First Flight lisa/m fixedwing...throttle auto 2 problem...

Segmento
Luis Carlos

El 29/10/2013 16:38, "Iman" <address@hidden> escribió:

Hello Luis

I think you must to change nominal cruise throttle , you can fly in manual
and find exact value of throttle in GCS.

Also, it's better to change Auto throttle PID gains.



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