Bicycle Trainer Treadmill Speed Matching With Swing Feedback
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Solution Overview
Problem
Conventional bicycle trainers using rollers provide a poor simulation of actual riding sensations and lack the ability to adjust training intensity based on the rider's speed.
Innovation Solution
A bicycle trainer equipped with an electric treadmill, controller, and sensing unit that adjusts the conveyor belt speed based on the rider's swing to match the desired training speed, incorporating swinging members and sensors to prevent the bicycle from exiting the trainer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional rollers are used for bicycle training, then the structure is simple, but the riding simulation effect is poor
Solution Approach 1:
The patent changes the fundamental parameter of the support surface from discrete rollers to a continuous conveyor belt, transforming the riding interface to better simulate actual road conditions while maintaining structural feasibility through the use of a belt-driven mechanism
2Device complexity
If fixed resistance adjustment is used, then the device complexity is low, but the adaptability to different riding speeds is poor
Solution Approach 1:
The patent implements dynamic speed adjustment of the conveyor belt based on the rider's actual speed, transforming the static resistance adjustment mechanism into a dynamic system that automatically adapts to different riding conditions, thereby improving training effectiveness without requiring complex manual control
Solution Approach 2:
The patent introduces a feedback mechanism where the system detects the rider's speed and automatically adjusts the conveyor belt speed accordingly, creating a closed-loop control system that enhances adaptability while keeping the user interface simple
3Device complexity
If the conveyor belt speed is not adjusted to match rider speed, then the control system is simple, but the safety is compromised due to bicycle exiting the trainer
Solution Approach 1:
The patent employs a feedback-based speed matching control where the system continuously monitors the rider's speed and automatically adjusts the conveyor belt speed to maintain synchronization, thereby preventing the bicycle from exiting the trainer without requiring complex safety mechanisms
Solution Approach 2:
The patent implements preliminary speed adjustment before the bicycle can potentially exit the trainer, by proactively matching the conveyor belt speed to the rider's speed, thus preventing the harmful outcome before it can occur
Data Source
AI summary
A bicycle trainer includes an electric treadmill, a controller, and a sensing unit. The electric treadmill includes an endless conveyor belt on which a user may ride a bicycle. The controller is used to control a running speed of the endless conveyor belt. The sensing unit includes a swinging member and a sensor electrically connected with the controller for sensing a swing of the swinging member and sending a corresponding signal in responsive to the swing. The swinging member is disposed across the electric treadmill and swingable back and forth relative to the electric treadmill, such that the swinging member is pushable by a bicycle wheel to swing. The controller adjusts the running speed of the endless conveyor belt based on the corresponding signal. As such, the endless conveyor belt can match the instant riding speed of the user, thereby providing good riding training and experience.