Motor control method, motor control apparatus and electric bicycle

Abstract

The invention provides a motor control method, a motor control apparatus and an electric bicycle. According to the method, a micro controller collects one or more kinds of signals of a current signal, a treading torque signal and a motor rotary speed signal of a power driving circuit, and outputs a control signal according to changes of the collected signals so as to perform regulation and control on the motor. By means of monitoring the changing conditions of the current signal, the treading torque signal and the motor rotary speed signal of the power driving circuit, accurate control of the motor can be realized, so that continuous high-speed rotation of the motor caused by hysteresis of a motor driving band at the disconnecting moment of a clutch can be avoided, and a screaming noise generated by the motor in a no-load state can be further avoided; and therefore, the service life of the motor is prolonged while a relatively good riding experience is brought to a user.

Description

technical field [0001] The invention relates to the technical field of electric bicycles, and relates to a motor control method, a motor control device adapted to the control method, and an electric bicycle using the motor control device. Background technique [0002] The reverse brake technology of the bicycle refers to that through the reverse brake hub, the pedal is stepped on in the opposite direction, the chain moves in reverse, and the reverse brake hub is driven to brake. With the application of reverse brake technology of bicycles more and more widely, technicians began to try to use reverse brake technology on electric bicycles. In the process, technicians found that although the motor output of electric vehicles can be cut off by detecting the reverse brake signal However, in order to ensure the continuous output of the motor, the controller of the electric bicycle makes the driving of the motor have a certain hysteresis. At the moment when the clutch is disconnect...

AI Technical Summary

Problems solved by technology

With the application of reverse brake technology of bicycles more and more widely, technicians began to try to use reverse brake technology on electric bicycles. In the process, technicians found that although the motor output of electric vehicles can be cut off by detecting the reverse brake signal However, in order to ensure the continuous output of the motor, the controller of the electric bicycle makes the driving of the motor have a certain hysteresis. At the moment when the clutch is disconnected, the motor still keeps running, and the speed of the motor increases rapidly due to the disappearance of the load. , making a no-load screaming sound, which affects the user's riding experience

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