Electric Roller Skates With Synchronized Dual-Motor Speed Control
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Solution Overview
Problem
Existing electric roller skates have limited functionality, poor performance, and lack intuitive control and built-in safety features.
Innovation Solution
The electric roller skate system includes adjustable bases for different shoe sizes, a steering truck for easier turning, a powered rear wheel with a brushless hub motor, sensors for posture detection, and a remote control for speed adjustment, along with a calibration process to ensure synchronized motor speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If electric motors are integrated into each roller skate for independent propulsion, then propulsion capability and speed control are improved, but device complexity and synchronization difficulty increase
Solution Approach 1:
The system divides the propulsion function into two independent electric motors, one integrated into each roller skate. This segmentation allows each skate to be controlled independently while maintaining overall system coordination through wireless communication between the skates and the remote control, resolving the contradiction by enabling speed control at each segment while managing complexity through modular design.
Solution Approach 2:
The system implements feedback mechanisms where each electric motor's performance is monitored and adjusted based on signals from the remote control and inter-skate communication. This feedback loop ensures synchronized operation of both skates while maintaining independent speed control capability, addressing the synchronization difficulty arising from independent motor integration.
2Ease of operation
If a steering truck mechanism is added to the front wheels, then maneuverability and turning ease are improved, but device complexity increases
Solution Approach 1:
The steering truck mechanism merges the turning function into an integrated assembly that combines the front wheel axles, mounting brackets, and steering pivot into a single unit. This merging approach improves maneuverability by providing a coordinated turning mechanism while managing device complexity through standardized component integration rather than separate adjustable parts.
3Reliability
If sensors and processing units are integrated into the roller skates for posture detection and safety monitoring, then safety and functionality are improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The processing unit integrated into each roller skate serves multiple functions: detecting rider posture through sensors, monitoring motor performance, managing wireless communication, and controlling safety features. This multi-functionality approach improves safety and reliability by consolidating these functions into a single integrated system rather than separate components, thereby managing device complexity while enhancing functionality.
4Adaptability or versatility
If adjustable bases are provided to accommodate different shoe sizes, then adaptability is improved, but manufacturing precision requirements and device complexity increase
Solution Approach 1:
The base of each roller skate is designed with adjustable length capability, allowing the distance between the front and rear mounting points to be modified. This dynamic adjustment feature accommodates different shoe sizes and rider preferences by enabling the base geometry to change, thereby improving adaptability while managing manufacturing precision requirements through standardized adjustment mechanisms rather than custom fabrication for each size.
Data Source
AI summary
An electric roller skate system includes a pair of roller skates, where each of the pair of roller skates includes: a base configured to receive a foot of a rider, where the base comprises a front base and a rear base, where a distance between the front base and the rear base is adjustable; a front main body attached to the front base; a rear main body attached to the rear base; an ankle strap attached to the rear main body; two front wheels attached to a bottom of the front base; a rear wheel attached to a bottom of the rear base, where a cross-section of the rear wheel has a barrel shape; a battery; and an electric motor mechanically coupled to the rear wheel.