Bicycle Brake Controller Power Mode Switching
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Solution Overview
Problem
Human-powered vehicle brake systems face high power consumption due to continuous operation, even when not in use, which is inefficient and wasteful.
Innovation Solution
An electronic controller with multiple control modes that switches between active and standby states based on input data such as vibration, rotation, and user presence, reducing power consumption by maintaining the driving part in a standby state when not needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the driving part operates continuously to ensure immediate braking response, then braking reliability is improved, but power consumption increases
Solution Approach 1:
The system dynamically switches between two control modes based on detected input conditions. In the first mode, the driving part responds immediately to user operations for reliable braking. In the second mode, the driving part remains in standby state to reduce power consumption. The electronic controller transitions between these modes based on whether input to the human-powered vehicle is detected, creating a dynamic adaptation that resolves the contradiction between continuous operation reliability and power consumption.
2Productivity
If the driving part is kept in active state for immediate response, then braking performance is maintained, but energy waste occurs during non-use periods
Solution Approach 1:
The electronic controller implements periodic monitoring of input conditions to determine when to switch between operational modes. Rather than maintaining continuous active state, the system periodically checks for user input or vehicle movement and adjusts the driving part's state accordingly. This periodic action allows the system to enter low-power standby mode during non-use periods while maintaining the capability to quickly resume full functionality when needed.
3Power
If the driving part operates in high-power mode continuously, then braking capability is ensured, but power consumption exceeds necessary levels
Solution Approach 1:
The system changes the operational parameters of the driving part based on detected conditions. In the first control mode, the driving part operates with full power parameters ready for immediate braking. In the second control mode, the driving part transitions to a standby state with reduced power parameters. The electronic controller adjusts these parameters dynamically based on whether input to the human-powered vehicle is detected, optimizing the balance between braking power availability and actual power consumption.
Data Source
AI summary
A brake system includes a driving part driven by electric power to brake a rotary body of a human-powered vehicle and an electronic controller configured to control the driving part. The electronic controller has a plurality of control modes including a first mode that drives the driving part in accordance with a user operation and a second mode that does not drive the driving part regardless of the user operation. The electronic controller is configured to switch the plurality of control modes based on setting information related to an input to the human-powered vehicle.