E-Bike Assist Control Switching by Rider Input Procedure
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Solution Overview
Problem
Existing human-powered vehicle control devices do not effectively change motor control states in a manner that aligns with the user's intentions, lacking flexibility and responsiveness to different operation procedures.
Innovation Solution
A human-powered vehicle control device with an electronic controller that adjusts motor control states based on specific operation procedures, allowing for changes between multiple control states, including assist levels and output variations, in response to user inputs on operating portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the control device uses a single operation procedure to change control states, then the device complexity is reduced, but the adaptability to different user intentions deteriorates
Solution Approach 1:
The control device dynamically adapts its response based on the detected operation procedure. When a first operation procedure is detected, the device transitions to a first control state, and when a second operation procedure is detected, it transitions to a second control state. This dynamic behavior allows the same hardware to serve multiple functions without increasing physical complexity.
Solution Approach 2:
The invention changes the operational parameters of the control device by detecting different operation procedures (different patterns of user input) and responding with different control states. This parameter-based differentiation allows the device to adapt to various user intentions without adding physical components.
2Adaptability or versatility
If the control device provides multiple control states with different assist levels, then the adaptability to user needs is improved, but the device complexity increases
Solution Approach 1:
The control device uses dynamic state transitions based on detected operation procedures. The electronic controller monitors input patterns and switches between control states (first control state, second control state, third control state) accordingly, allowing multiple assist levels to be accessed through software logic rather than hardware switches.
Solution Approach 2:
A single operating portion serves multiple functions by detecting different operation procedures. The same physical component can trigger different control states (first control state with first assist level, second control state with second assist level, third control state with third assist level) based on the pattern of operation detected, eliminating the need for separate controls for each assist level.
3Ease of operation
If the control device responds to different operation procedures with different control states, then the responsiveness to user intentions is improved, but the difficulty of detecting and measuring operation procedures increases
Solution Approach 1:
The electronic controller continuously monitors the operation portion for input signals and provides feedback by transitioning to appropriate control states. The system detects the pattern of operations (first operation procedure vs. second operation procedure) and responds with corresponding control states, creating a feedback loop that enhances responsiveness while managing detection complexity through systematic signal processing.
Data Source
AI summary
A human-powered vehicle control device includes an electronic controller that changes a control state of an assist motor in accordance with an operation of an operating device. The control state includes a first control state, a second control state where the motor is driven in correspondence with a human driving force input, and a third control state where the motor is driven in correspondence with the human driving force input. In a case where the operating device is operated in accordance with a first operation procedure in the first control state, the electronic controller changes from the first control state to the second control state. In a case where the operating device is operated in accordance with a second operation procedure in the first control state, the electronic controller changes from the first control state to the third control state.