Bicycle Motor Controller Automatic Boost Adjustment
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Solution Overview
Problem
Existing electric drive-assisted bicycles with boost switches do not provide a convenient system for riders to adjust driving force according to their preferences without active intervention, lacking automatic adjustment based on factors like time, distance, or pedal power.
Innovation Solution
A bicycle motor control system with a controller that receives user inputs to set boost and assist ratios, automatically adjusting driving force based on factors such as time, distance, or pedal power, and allowing users to select from multiple assist modes via operation switches or a lever, with options for boost ratios and assist ratios that can be saved for later use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the boost switch is continuously operated by a rider to increase driving force, then the driving force is easily increased, but the rider cannot concentrate on riding without active intervention
Solution Approach 1:
The system automatically manages boost ratio adjustments based on rider input, eliminating the need for continuous manual operation. The controller monitors riding conditions and autonomously adjusts the drive motor output, allowing the rider to focus on riding while the system handles power management independently.
Solution Approach 2:
The rider provides initial input to set preferred boost and assist ratios, and the system pre-configures these settings for automatic application. This preliminary setup enables the system to automatically adjust driving force without requiring continuous rider intervention during operation.
2Extent of automation
If the controller automatically reduces driving force based on time, distance, or crank rotations, then the driving force is appropriately reduced without user intervention, but the system complexity increases
Solution Approach 1:
The controller continuously monitors riding conditions such as time elapsed, distance traveled, and crank shaft rotations, using this feedback to automatically adjust and reduce driving force appropriately. This feedback mechanism enables intelligent automation while maintaining manageable system complexity through sensor-based monitoring.
3Adaptability or versatility
If multiple assist ratios are provided for user selection, then the driving force can be appropriately provided according to user preferences, but the operation complexity increases
Solution Approach 1:
The system provides multiple assist ratios that can be dynamically selected and adjusted based on riding conditions and user preferences. The controller allows flexible switching between different assist ratios while maintaining ease of operation through intuitive controls that adapt to the selected configuration.
Data Source
AI summary
A bicycle motor control system is provided. The bicycle motor control system may be configured to control a drive motor that configured to output a driving force. The controller may be configured to receive a first user input and increase the driving force based on the first user input so as to set a boost ratio, and automatically reduce the driving force based on a factor other than the first user input.