Motor control method and device of power-assisted bicycle and power-assisted bicycle
Through the combined automatic adjustment technology of electronic gears and mechanical gears, the problem of existing assisted bicycles needing to manually adjust the assisted gear is solved, which improves the comfort and safety of riding, and realizes the automatic adaptation of the motor output to different road conditions.
CN119305667APending Publication Date: 2025-01-14SUZHOU WANJIA ELECTRIC
Patent Information
- Application Number
- CN202310862208.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-13
- Publication Date
- 2025-01-14
AI Technical Summary
Technical Problem
The existing assist bicycles require the cyclist to manually adjust the assist gear, which makes it uncomfortable to ride and difficult to adapt to different road conditions.
Method used
The combination of electronic gear adjustment and mechanical gear adjustment is adopted to detect road conditions and cyclist input through gyroscopes, torque sensors and speed sensors, and automatically adjust the motor output power and gears to ensure that the cyclist is in a comfortable pedaling range.
Benefits of technology
Improves the comfort and safety of riding while retaining the fun of the cyclist, and automatically adjusts the motor output to make the riding process easier.
✦ Generated by Eureka AI based on patent content.
Smart Images

Figure CN119305667A_ABST
Abstract
The invention discloses a motor control method of a power-assisted bicycle, which considers that when the power-assisted bicycle runs under different road conditions, the current manpower output power and an electronic transmission of the bicycle can correspondingly change along with the difference of the road conditions, and the electronic transmission of the bicycle can correspondingly change along with the change of the current manpower output power. Therefore, the target motor torque can be obtained based on the change relation between the current manpower output power and the target motor output power so as to control the data of the motor, the gyroscope and the torque sensor, and the automatic output adjustment of the motor is completed by adding an algorithm to the data of the gyroscope and the torque sensor. According to the electric bicycle, the mechanical gears are automatically adjusted according to road conditions, the riding comfort and safety are improved, and meanwhile the riding pleasure of the rider is reserved. The invention further discloses a motor control device of the power-assisted bicycle and the power-assisted bicycle, and the motor control device and the power-assisted bicycle have the same beneficial effects as the method.
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Citation Information
Patent Citations
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