h210_4s_2x5045.param (12.9 KB)
Autotune aggr set to .1 and axis to pitch only. After autotune was complete I switched to new rates which immediately caused me to crash and break a frame. Uploaded params are rates prior to autotune. After autotune pitch P was .01 and stab p was .5.Using 3.5 beta
Anyone? It's really disappointing that I can't get a pixracer to fly as well as a cheap board running betaflight.
What size frame and how much power on tap.
Leaving the aggr set to .1 gives an unstable tune for all frames I have (too much power)
Have you tried it at .05?
210 size frame with 2200kv f60. I completed an autotune on earlier firmware with agressiveness at .1 on 2450kv motors so i feel its something different with my params or the firmware
You don't say which firmware you're using but on early 3.5 betas I found it did very bad autotunes on small frames (I'm running a 300 size frame with 2205/2000kv motors). Like you it would crash as soon as I tried to take off with the tuned params. One thing to check is the ATC_ACCEL_x_MAX values, it was setting these to very small values. Also make sure you're setting AUTOTUNE_MIN_D to a very small value, at least 0.001 (earlier firmwares had this set higher). Also try with less aggressive setting (0.5) first to see if that works.I tried the latest beta recently on the same frame and it produced flyable tune.
Thanks for the reply. I just configured the latest beta and so far have had success autotuning yaw. Pitch still wants to set the rat_p at .01 for some reason. I'm going to try roll next.Min D is currently set to .0008 as that was about what I was using for roll when I was tuning manually. I just started trying to use autotune as I could not get attitude to hold in agressive turns. I'm hoping autotune starts me with a better base to continue manual tuning.
I've found an issue. When The autotune is complete and I switch to the new rates. It flies beautifully. After I land and disarm. If I plug the battery back in and fly immediately after, its on the extremely low rates I've been seeing in mission planner. It always sets the rate p to .01
For some reason its not saving the new rates after autotune is complete. It saves them as .01 after I disarm.