Eddy Current Bicycle Resistance Unit for Dynamic Terrain Simulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Outdoor cycling faces challenges such as varying rider abilities, safety concerns with street riding, and limited season due to weather, making it difficult for cyclists to maintain a consistent training experience.
Innovation Solution
A resistance training device for bicycles that uses a magnetic eddy current damper to simulate terrain resistance, allowing riders to experience dynamic training on roads while providing a virtual ride experience through adjustable magnetic fields and sensor data, enabling riders to compete or ride together virtually.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If cyclists ride outdoors on varied terrain to increase training effect, then training effectiveness is improved, but safety risks and weather limitations worsen
Solution Approach 1:
The patent introduces a magnetic resistance device as an intermediary between the cyclist and the environment. The device uses magnetic fields to create adjustable resistance that simulates varied terrain conditions without requiring actual outdoor riding, thereby maintaining training effectiveness while eliminating safety risks and weather limitations
Solution Approach 2:
The patent replaces mechanical terrain resistance (physical hills and varied surfaces) with a magnetic field-based resistance system. The magnetic resistance device uses electromagnetic fields to generate adjustable resistance forces, substituting the need for actual mechanical terrain variation while providing equivalent or superior training effects
2Reliability
If indoor stationary training is used to ensure safety and comfort, then safety and weather reliability are improved, but training effectiveness and engagement worsen
Solution Approach 1:
The patent applies dynamics by making the resistance level adjustable and variable through magnetic field control. The resistance can be dynamically changed during training sessions to simulate different terrain conditions, maintaining high training effectiveness while keeping the safety and comfort benefits of indoor stationary training
Solution Approach 2:
The patent changes the resistance parameter through magnetic field adjustment rather than requiring physical terrain changes. By varying magnetic field strength, the system can simulate different resistance levels equivalent to various terrain conditions, maintaining training effectiveness without compromising safety or comfort
3Productivity
If magnetic resistance is applied to simulate terrain, then training effectiveness is improved, but device complexity worsens
Solution Approach 1:
The patent extracts the essential function of terrain resistance (variable resistance force) from the complex physical terrain and implements it through a simplified magnetic field-based system. This separates the resistance-generating function from the need for actual varied terrain, reducing device complexity while maintaining training effectiveness
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances the cycling experience by simulating varied terrain resistance, allowing riders to train effectively indoors or outdoors while maintaining social and competitive elements, regardless of weather or ability differences, and providing real-time data feedback.
Implementation Method 1
The performance of the rolling bicycle is thus influenced by the effects of a frictionless eddy current damper which, when engaged, increases the effort required to be exerted by the rider to sustain a given speed
Implementation Method 2
A conductive disc is configured to rotate in response to rotation of the roller. The device further includes a source of a magnetic field; and a control, for increasing or decreasing exposure of the disc to the magnetic field
Data Source
AI summary
A dynamic training system provides elevated load and energy demand on a rider of a moving bicycle out on the road or track. Resistance to movement of the bicycle is provided by a resistance unit which may include an eddy current brake. A processor may generate a control signal that adjusts the resistance to replicate the effort of riding a predetermined course or training protocol. Multiple riders at different times or locations can compete on a common virtual course. A stronger rider can be restrained by a heavier imposed load to keep pace together with a weaker rider, without compromising total power expenditure to keep the riders together.