Swing Arm Mounted Motor Electric Motorcycle Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electric motorcycles often have long wheelbases, making them difficult for smaller riders to navigate, and require cumbersome drive mechanisms, with limited interchangeability of components for different terrain or usage scenarios.
Innovation Solution
An electric motorcycle design featuring a unique swing arm arrangement with a pivot point forward of the rear wheel, a motor positioned within the swing arm, and modular components such as a detachable stem for handlebars, a handlebar display mount, and a fingerprint reader, along with a fast charging unit, to maintain a compact wheelbase and enhance interchangeability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the motor is positioned within the swing arm between the pivot point and the rear wheel, then the wheelbase is reduced making the motorcycle easier to navigate for smaller riders, but the drive mechanism becomes more complex requiring precise positioning and mounting of the motor within the swing arm structure
Solution Approach 1:
The motor is nested within the swing arm structure, utilizing the existing swing arm space to house the motor between the pivot point and the rear wheel. This nesting approach reduces the overall wheelbase length while integrating the motor into the existing structural framework, avoiding the need for separate motor mounting locations that would increase complexity.
Solution Approach 2:
The motor positioning utilizes the vertical and lateral dimensions within the swing arm rather than extending the wheelbase horizontally. By positioning the motor in three-dimensional space within the swing arm structure, the design achieves a shorter wheelbase without simply adding more components along the existing drive axis.
2Adaptability or versatility
If modular components such as detachable handlebars and interchangeable parts are implemented, then component interchangeability is improved for different terrain and usage scenarios, but the device complexity increases due to additional mounting hardware and assembly requirements
Solution Approach 1:
The handlebar assembly is segmented into detachable components that can be separated and reconfigured. This segmentation allows riders to interchange handlebars based on terrain needs (e.g., taller handlebars for off-road, lower for street) while using standardized mounting interfaces that minimize the complexity increase from adding modular capabilities.
Solution Approach 2:
The mounting hardware and interface designs are made universal to accommodate multiple component types. The same mounting structure supports different handlebar configurations, and standardized attachment points allow various components to be interchanged, reducing the need for specialized hardware for each configuration and thereby limiting the complexity increase.
Data Source
AI summary
An electric motorcycle is provided. The electric motorcycle includes a frame, a battery, a motor electronically connected to the battery, a chain connecting the motor to a rear wheel, and a dual-sided swing arm configured to maintain the rear wheel, the dual-sided swing arm comprising a right side swing arm spar and a left side swing arm spar, the dual-sided swing arm joined to the frame at a pivot point forward of the rear wheel. The motor is positioned within the dual-sided swing arm at a motor location between the pivot point and the rear wheel.