Personal Mobility Device Inclination Sensor Control
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Solution Overview
Problem
Personal mobility devices, such as electric wheel and electric skateboards, require a long time and effort to learn various control methods, making them difficult for users to operate effectively and balance, especially on slopes.
Innovation Solution
A personal mobility device with a frame connected to wheels, a tiltable boarding part, and sensors to measure inclinations, which uses the difference in inclinations to control wheel rotation and provide elastic force for easy operation and balance, allowing intuitive control and accurate speed management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional control methods are used for personal mobility devices, then the device can change direction, but it requires a lot of time and effort to learn various control methods
Solution Approach 1:
The system automatically detects user intent through sensors (weight distribution, body inclination) and executes corresponding control actions without requiring the user to learn complex control commands. The device serves itself by interpreting physical states directly as control inputs, eliminating the need for users to memorize control methods.
Solution Approach 2:
The patent replaces traditional mechanical control interfaces (handlebars, buttons, switches) with a sensor-based detection system that automatically senses user body movements and weight distribution. This substitution transforms the control mechanism from active user manipulation to passive sensing and automatic response.
2Stability of the object's composition
If traditional control methods are used for personal mobility devices, then the device can move, but it is difficult for users to balance, especially on slopes
Solution Approach 1:
The system continuously monitors user body inclination and weight distribution through sensors and automatically adjusts wheel rotation and device orientation in real-time. This closed-loop feedback mechanism maintains balance by constantly comparing actual device state with desired state and making corrective adjustments, particularly effective on slopes where gravity creates additional destabilizing forces.
Solution Approach 2:
The balancing system operates autonomously by detecting user posture changes and automatically executing compensatory movements through wheel rotation and frame adjustment, eliminating the need for users to actively manage balance, especially challenging situations like slope navigation.
3Speed
If traditional control methods are used for personal mobility devices, then the device can change direction, but speed control is not accurate and cannot be controlled even on a slope
Solution Approach 1:
The system uses sensors to continuously detect user body inclination angles and weight distribution, feeding this information to the controller which adjusts wheel rotation speed and direction accordingly. This real-time feedback enables precise speed control and automatic adaptation to slope conditions without requiring user intervention.
Solution Approach 2:
The system dynamically adjusts operational parameters (wheel rotation speed, direction, and magnitude) based on detected user body inclination and weight distribution parameters. By continuously varying these parameters in response to sensor input, the system achieves accurate speed control and slope adaptability.
Data Source
AI summary
A personal mobility device includes a frame connected to at least one wheel, a connection part on the frame, a boarding part connected to the connection part to be tiltable, a first sensor disposed on the frame to measure an inclination of the frame, and a second sensor disposed on the boarding part to measure an inclination of the boarding part.