Moving vehicle
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Solution Overview
Problem
Existing moving vehicles require riders to operate front and rear steering wheels manually, making it difficult to move freely and intuitively in all directions while sitting.
Innovation Solution
A moving vehicle design featuring a chair frame with universal casters, a sitting seat, and a driving unit that includes a driving wheel offset from the central axis, allowing the rider to control direction and velocity by kicking the ground, with a driving control unit managing power to the driving wheel based on applied force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the rider operates front and rear steering wheels manually, then the vehicle can be controlled, but the operation becomes complex and lacks intuitiveness
Solution Approach 1:
The patent replaces the manual mechanical steering wheel operation with an automated system that detects the rider's body movement (leaning) and automatically controls the steering wheels. The rider simply leans in the desired direction, and the system converts this passive body movement into active steering control, eliminating the need for manual steering wheel manipulation.
Solution Approach 2:
The system enables self-service operation by using the rider's own body movement as the control input. The rider's natural leaning motion is detected by sensors and automatically translated into steering commands, making the vehicle respond to the rider's intuitive body language without requiring manual operation of control mechanisms.
2Adaptability or versatility
If manual steering wheel control is used, then directional control is achieved, but movement flexibility in all directions is limited
Solution Approach 1:
The patent implements dynamic control where the steering system continuously adapts to the rider's real-time leaning movements. The system can respond to leaning in any direction (not just left or right, but also forward, backward, or diagonally), enabling the vehicle to move flexibly in all directions based on the rider's natural body orientation changes.
Solution Approach 2:
The steering control system serves multiple functions by detecting various types of leaning movements and translating them into corresponding directional steering commands. A single leaning-based control mechanism handles all directional control needs, making the system universally applicable for movement in any direction without requiring separate controls for different movement types.
3Ease of operation
If the driving wheel is offset from the central axis, then the driving unit rotates in the kicking direction, but the mechanical structure becomes more complex
Solution Approach 1:
The patent deliberately employs asymmetric positioning of the driving wheel relative to the unit connection shaft's central axis. This asymmetric offset is calculated and designed to convert the rider's kicking motion into effective rotational torque. The specific offset distance and position are optimized to ensure that kicking in the desired direction produces the correct rotational response from the driving unit.
Data Source
AI summary
A moving vehicle according to the present disclosure includes a chair frame including universal casters, a sitting seat disposed above the chair frame and connected to the chair frame, and a driving unit disposed below the sitting seat and connected to the chair frame so that the driving unit can rotate about a unit connection shaft, in which the driving unit includes a driving wheel including a rotation shaft located at a position deviated from a central axis of the unit connection shaft, a velocity detection unit configured to detect a rotational velocity of the driving wheel, and a driving control unit configured to control a velocity of the driving wheel according to an external driving force applied to the driving wheel.