Motor control method, motor control apparatus and electric bicycle

An electric bicycle and motor control technology, applied in electric vehicles, optimized efficiency control at low load, power management, etc., can solve problems such as increased motor speed and affecting user riding experience, so as to prolong service life and improve riding quality The effect of experience

Active Publication Date: 2017-08-18
TAICANG YUEBO ELECTRIC TECH
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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

Method used

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  • Motor control method, motor control apparatus and electric bicycle

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[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0030] An embodiment of the present invention provides a motor control method, which uses a microcontroller to collect one or more signals from the current signal of the power drive circuit, the pedaling torque signal, and the motor speed signal, and changes according to the collected signal, Output the control signal to regulate the motor to avoid the idling of the motor caused by the lag of the motor drive.

[0031] specifically,

[0032] When the negative slope of the voltage signal transformed by the current signal is greater than the first set value, or the positive slope of the rotational sp...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P23/02
CPCH02P23/02Y02T10/72
Inventor 高峰
Owner TAICANG YUEBO ELECTRIC TECH
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