Bicycle Component Control Apparatus Connection State Detection

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Solution Overview

Problem

Existing bicycle electrical systems with electrically adjustable components face issues in maintaining optimal operating states when there are disruptions in the electrical connecting state between the control unit and input devices, leading to undesirable trapped states, such as lockout or incorrect settings.

Innovation Solution

A bicycle component control apparatus that includes a controller and a detecting member to output predetermined control parameters based on the electrical connecting state, automatically resetting electrical components like suspensions, derailleurs, and seatposts to default or more desirable states when a non-normal connection is detected, ensuring they operate in non-lockout, middle travel-stroke length, or middle damping rate settings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If electrically adjustable components are provided with electric units and position sensors, then the components can be adjusted automatically, but the system becomes more complex and more prone to electrical connection disruptions

Engineering Contradiction:
Improveautomatic adjustment of bicycle componentsVSAvoidelectrical system complexity
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The control unit continuously monitors the electrical connection state between the input device and itself. When a disruption is detected, the system automatically responds by outputting predetermined control parameters to adjust the electrical bicycle component to a safe default state, creating a closed-loop feedback system that enhances reliability without requiring manual intervention

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs self-diagnosis and self-correction by automatically detecting connection disruptions and adjusting components to predetermined safe states without requiring external intervention. The control unit monitors its own operational status and takes corrective action independently

Inventive Principle:
Principle #25Self-service

2Reliability

If the control unit continuously monitors electrical connection state, then safety is improved, but energy consumption increases

Engineering Contradiction:
Improvesystem safetyVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The control unit performs connection state monitoring at periodic intervals rather than continuously, checking for disruptions only when necessary (e.g., when component adjustment is requested or at scheduled intervals). This periodic monitoring approach maintains system safety while significantly reducing energy consumption compared to continuous monitoring

Inventive Principle:
Principle #19Periodic action

Data Source

PatentEP2505469B1Bicycle component control apparatus
Publication Date: 2016.09.14 SHIMANO INC
  • EP2505469B1 patent drawingFigure 1
  • EP2505469B1 patent drawingFigure 2
  • EP2505469B1 patent drawingFigure 3

AI summary

A bicycle component control apparatus is basically provided with a controller and a detecting member. The controller is configured to control an operation of an electrical bicycle component by selectively outputting a control parameter. The detecting member detects an electrical connecting state between the controller and a manually operated input member for changing a setting of the electrical bicycle component. The controller outputs a predetermined control parameter based on the electrical connecting state.