Add pitching moment control via control surfaces #521
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lum-supakorn
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lum-supakorn
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Many thanks for the contribution! |
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@Jaeyoung-Lim Will work on the delta wing next. I’ve already tested this with the new elevon mixer, but I had issues making another PR for the upstream Firmware repo. Will work on that as soon as I can. |
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@Jaeyoung-Lim I have added the mixer fix here. |
Jaeyoung-Lim
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Jun 19, 2020
RyosukeMatsushima
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this pull request
Jun 21, 2022
* Remove virtual elevator from the tailsitter model and add pitch control via elevon * Reduce default cm_delta to reduce vibration
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This pull request adds the effect of the control surface deflection angle on the pitching moment of a wing. This aerodynamic effect is crucial for pitch control in tailless aircraft like the tailsitter SITL model. Earlier, the model needs a virtual elevator for pitch control since the moment coefficient was negated as pointed out in #516.
With pitching moment control via control surface deflection angle, the tailsitter SITL no longer needs the virtual elevator. However, it still needs a virtual rudder for directional stability.
To make the tailsitter SITL model work, the mixer file needs to be changed as well (add pitch control mixer to the elevons and remove the mixer for the virtual elevator). I'm trying to make another PR in the PX4/Firmware repository.