Motors are not tilting during transition

PX4 Autopilot Flight Controllers 💻
1

Hello,

@hamishwillee, @sfuhrer @bresch @Developer @JulianOes

I am facing very unusual thing. I am working with a quad tilt rotor VTOL, and motors are not tilting during transition.

I am using Pixhawk 6C, 1.14.3 PX4 and QGC 4.4.0.

I have assigned a RC channel 8 as VTOL transition and when i flick it, after 8-10 sec, the MC changes to FW in QGC screen (on top left corner).

But all four tilt mechanism are not tilting and they are in hover position.

As of now, i am doing just ground test to check the functionality. I was able to perform this test (tilting) before, but now it is not working. I though, it might be because of airspeed, so i disabled the airspeed sensor and check for invalid airspeed sensor.

In addition, when it displays FW on QGC, the control surfaces are also not functioning i.e., aileron, V tail.

I am able to check the servo with the actuator testing function. tilt and control surfaces

I am not sure, what i am doing wrong, most of the parameters are same as before, only QGC and PX4 version is changed.

Attaching the parameters file for the reference.

08082024.pdf (171.6 KB)

Any help or lead would be appreciated.

Regards,
Dhruvil

2

Which instructions did you follow? This one: Actuator Configuration and Testing | PX4 Guide (main) ?

If so, at what point did it not work as expected.

(And please don’t tag people in your post, that’s just rude.)

2 Likes
3

I flashed the firmware on my FCC, and then selected generic tilt rotor and did not load the parameters from the .param file. So basically, i reconfigured everything on QGC and then it started working again. (though, with the old parameters it was working before)

Sorry, just wanted to direct the question to developers. Won’t happen again. Thanks for the responding.

4

For bench tests you need to allow the servos to move: set COM_PREARM_MODE to 1 or 2.

2 Likes