Micromobility Vehicle Ergonomics Without Adjustable Components
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Solution Overview
Problem
Conventional micromobility transportation options are not well suited for moderate distance trips, often leading to user fatigue and discomfort due to the need for manual adjustments and lack of adaptability to different user sizes and trip purposes.
Innovation Solution
A one-size-fits-all electric vehicle design with fixed dimensions and components, optimized for a wide range of user sizes, ensuring comfort and ease of use by accommodating various terrains and user postures, featuring a non-adjustable frame with integrated storage and user interface elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional micromobility vehicles are designed with adjustable components to accommodate different user sizes, then adaptability to different users is improved, but device complexity and manufacturing costs increase
Solution Approach 1:
The patent applies universality by designing the micromobility vehicle with a one-size-fits-all approach, where the frame geometry and component dimensions are optimized to accommodate a wide range of user sizes (from 5th to 95th percentile) without requiring adjustable components. The vehicle integrates multiple functions including propulsion, steering, braking, and storage into a fixed configuration that serves diverse user needs through ergonomic optimization rather than mechanical adjustment.
2Ease of operation
If conventional micromobility vehicles are designed with adjustable components, then ease of operation for different users is improved, but manufacturing and maintenance costs increase
Solution Approach 1:
The patent applies parameter changes by optimizing the fixed geometric parameters of the vehicle frame and components to accommodate various user sizes. Specifically, the frame geometry, handlebar height, seat position, and footboard dimensions are carefully selected within specific ranges to provide ergonomic comfort for users from the 5th to 95th percentile, eliminating the need for adjustable mechanisms while maintaining ease of operation.
3Speed
If micromobility vehicles are designed for short distance trips, then speed is improved, but comfort for moderate distance trips deteriorates
Solution Approach 1:
The patent applies dynamics by incorporating an electric motor with variable speed control and a regenerative braking system that allows the vehicle to adapt its performance characteristics based on trip conditions. The electric propulsion system provides high torque for acceleration and hill climbing, while the regenerative braking recovers energy during deceleration, enabling comfortable moderate-distance travel while maintaining the speed performance needed for shorter trips.
Data Source
Figure 1A~1C
Figure 1D~1E
Figure 2A~2B
AI summary
A universal micromobility vehicle configured for use in a vehicle share system comprises a frame, a footboard fixed to the frame, a seat fixed to the frame, handlebars, and front and rear wheels supported by the frame. The seat is separated from the footboard in a vertical direction by a fixed distance between 500 mm and 600 mm. The handlebars are separated from the footboard in the vertical direction by a fixed distance between 700 mm and 900 mm. The footboard is fixed to the frame at a fixed vertical distance relative to the lower surfaces of the front and rear wheels between 160 mm and 240 mm. The seat is fixed to the frame at a fixed vertical distance relative to the lower surfaces of the front and rear wheels between 700 mm and 800 mm.