Tagged: F4 flight controller
26 September, 2016 at 23:45 #33590DaveLParticipant
Hi lauka, do you think it would improve flight behaviour if you disabled active braking in the ESCs ?2 November, 2016 at 22:29 #34513NicholasMorganUSAParticipant
Has there been a solution to reversing the servo while using the Triflight firmware? I need to reverse my servo to fly correctly.8 November, 2016 at 19:50 #34680
One solution I can think of is to quick pulsing of Throttle as dynamic yaw is adjusted. Just like many 3d fixed wing pilots do at slow speeds.
Thanks.12 November, 2016 at 06:25 #34758
Upon further thinking one other solution is adaptive PID values inversely scaled by current throttle. If PID values are tuned for mid throttle then reduce PID proportionally as the throttle increases and increase as throttle cut down.
Thanks.12 November, 2016 at 08:46 #34760
@DaveL: that would help with one issue but create others.
@sree: Pulsating throttle sounds interesting. Can you elaborate how it could help?
That’s almost exactly what the dynamic yaw does. It does it based on the tail motor speed rather than throttle.12 November, 2016 at 21:49 #34767
Pulsating throttle involves moderately increasing the throttle and then quickly returning so that control axes momentarily become effective while the throttle is increased. The duration, the size and the number of the pulses has to be experimented so that no significant attitude change happens at the sametime axes become effective. This is from my fixed wing experience. However I have limited experience with the tri.
However I think the adpative PID idea for all axes will be more effective. Even without the yaw correction, just as general rule, once a PID is tuned for a quad or tri at particular throttle, I think it needs to be inversely scaled as the throttle is increased or decreased from that level particularly for aerobatic flying.
– Sree30 November, 2016 at 00:55 #35205
I was reading through the triflight source code and realized that airmode is somewhat doing what a throttle pulse would do. Do you enable airmode on your tri? Is the tail drift/pitch forward on decelartion problem present in airmode also?
– Sree1 January, 2017 at 20:27 #357636 January, 2017 at 20:14 #35879TerjeModerator6 January, 2017 at 20:52 #35880
Sadly I don’t have much spare time at the moment :(. Also the motivation is quite low as I can’t do any flying myself here. When I get back behind the racing sticks I bet it’s totally different thing :).
Easiest way to get the support would be to rebase the stuff on betaflight.
- The forum ‘Everything about the Mini Tricopter’ is closed to new topics and replies.