Motor control method, device and system

Abstract

A control method, device and system for a motor (22). The method includes: acquiring the current electrical parameter of the battery (20) (S101); calculating the compensation amount of the control signal of the motor (22) according to the current electrical parameter (S102); and correcting the compensation amount of the control signal according to the compensation amount of the control signal The control signal (S103) of the motor (22), this method avoids the control signal of the motor (22) from fluctuating with the change of the electric parameter of the battery (20), and avoids the motor (22) under the control of the same accelerator signal The control signals are different, which solves the problem of slow response when the UAV is doing some actions that require high maneuverability, and at the same time avoids the phenomenon that the UAV becomes weaker and weaker during the flight.

Description

technical field [0001] The embodiments of the present invention relate to the field of unmanned aerial vehicles, and in particular to a method, device and system for controlling a motor. Background technique [0002] In the prior art, the battery supplies power to the ESC, so that the ESC outputs voltage to the motor to control the speed of the motor. The ESC receives the throttle signal sent by the flight controller. The longer the high-level pulse width of the throttle signal, the longer the flight controller needs the motor to reach The greater the rotational speed. [0003] However, the voltage of the battery keeps dropping during the discharge process. Compared with the original full-volt voltage of the battery, when the ESC receives the same throttle signal, as the battery voltage drops, the voltage output from the ESC to the motor drops, causing the motor to When the speed of the drone drops, when the drone is doing some actions that require high maneuverability, the...

AI Technical Summary

Problems solved by technology

[0003] However, the voltage of the battery keeps dropping during the discharge process. Compared with the original full-volt voltage of the battery, when the ESC receives the same throttle signal, as the battery voltage drops, the voltage output from the ESC to the motor drops, causing the motor to When the speed of the drone drops, when the drone is doing some actions that require high maneuverability, there will often be a problem of slow response, and the drone will become weaker and weaker during the flight

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