In electric fixed-wing aircraft, is it possible to set a battery power compensation parameter for throttle?
I have a long-flight fixed-wing drone. The flight time is about 4 hours. It uses a 12S battery. When fully charged, it is about 50V, and it flies until it lands at 38V. If the TRIM_THROTTLE setting cannot be compensated with the voltage, it will cause the airspeed to be higher when the voltage is high, and it will be easy to stall when the voltage is low. The approximate ratio of power is (5050)=2500: (3838)=1,444. In other words, the power output of the aircraft when it is about to land is only about 57% of that at takeoff. The throttle compensation value can be calculated based on the voltage to achieve a more appropriate airspeed for the aircraft without an airspeed meter.
Although my aircraft is equipped with an airspeed meter, I did not set TECS_SYNAIRSPEED to 1. Because I tried it and it was more unstable. The airspeed meter seems to drift after a long flight (probably due to temperature changes. Sometimes I forget to calibrate it when taking off.)
So I hope to add a compensation parameter between throttle and voltage. The rough calculation is
Actual output throttle = throttle * (full power voltage/current actual voltage)^2
Thanks everyone
