Cycling Simulator Torque Feedback Control
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Solution Overview
Problem
Existing cycling simulation apparatuses in gyms and home environments fail to accurately simulate the pedaling cadence and resistance of outdoor cycling, as they often have a single transmission ratio and manual adjustment systems that are ineffective and unreliable.
Innovation Solution
A gymnastic apparatus with a transmission assembly, braking assembly, and control logic unit that adjusts pedaling resistance based on detected torque feedback, allowing for quick and accurate adjustments through a gearshift mechanism with epicyclical gearing and a sensor system, enabling realistic cycling simulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual adjustment systems are used for cadence and resistance, then device complexity is reduced, but adjustment reliability and precision deteriorate
Solution Approach 1:
The patent replaces manual mechanical adjustment systems with an automated control logic unit that electronically controls the braking assembly. The control unit receives feedback from sensors and automatically adjusts the braking force, eliminating the need for manual intervention while improving reliability and precision of cadence and resistance adjustments.
Solution Approach 2:
The patent implements a feedback mechanism where sensors detect actual cadence and resistance values, transmit this information to the control logic unit, which then adjusts the braking assembly to maintain desired training parameters. This closed-loop feedback system ensures accurate and reliable adjustment without manual intervention.
2Device complexity
If a single transmission ratio is used, then device complexity is reduced, but adaptability to different training conditions deteriorates
Solution Approach 1:
The patent employs a dynamic transmission system with multiple gear ratios that can be automatically selected by the control logic unit based on detected cadence and resistance conditions. This allows the system to adapt to different training requirements without requiring manual gear changes, maintaining simplicity while enhancing versatility.
Solution Approach 2:
The transmission assembly is designed with multiple gear ratios that can handle various training conditions and resistance levels through a single integrated system. The control logic unit selects appropriate gear ratios automatically, making the system universally applicable to different training scenarios without requiring separate mechanisms for each condition.
3Measurement precision
If automated control systems are implemented, then adjustment precision is improved, but device complexity increases
Solution Approach 1:
The patent combines the control logic unit, braking assembly, and transmission control into an integrated automated system that manages both cadence and resistance adjustments through a single control architecture. This merging of functions improves precision while minimizing the increase in overall system complexity compared to separate control mechanisms.
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
The apparatus provides a realistic cycling experience by allowing precise control over pedaling cadence and resistance, enhancing training effectiveness and user engagement.
Implementation Method 1
a sensor connected to said control logic unit, said sensor being capable of detecting a feedback signal related to the torque acting on said flywheel shaft during the rotation of said flywheel
Implementation Method 2
a braking assembly, comprising a flywheel, rotating about a flywheel shaft operated by said transmission assembly, said braking assembly being arranged for braking said flywheel
Implementation Method 3
said gearshift could comprise gear wheels, coupled to each other by epicyclical gearing
Data Source
AI summary
Aspects of the present disclosure relate to a gymnastic apparatus and method for cycling simulation having a transmission portion driven by pedals, through which a user may perform cycling training. The transmission portion may comprise a flywheel and a braking portion, which may apply a braking force to the flywheel. The apparatus may further comprise a control logic unit, through which training parameters may be set, and a sensor coupled to the control logic unit. The sensor may detect a signal relating to the torque acting on the flywheel and thereby send a signal to the control logic unit; the control logic unit may be configured to adjust the braking force of the braking portion applied to the flywheel, thereby adjusting the resistance to the pedals as a function of parameters set, as appropriate, and communicate information and adjust such changes via a feedback signal from the sensor.