Personal Mobility Route Control for 45° Bump and Slope Entry
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Solution Overview
Problem
Current travel route creation systems for personal mobility vehicles do not effectively account for safety during travel or standing, particularly in navigating bumps and slopes, and lack efficient real-time route adaptation due to limited sensor coverage and data updating.
Innovation Solution
A travel route creation system that utilizes a server and onboard sensors to set passing points and create routes based on map data indicating safe travel areas, incorporating omnidirectional wheels and sensors to manage entering angles of 45° or more for bumps and slopes, reducing unintended movement and enhancing rider comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the personal mobility vehicle navigates bumps and slopes at steep angles to reach destination faster, then productivity is improved, but reliability deteriorates due to safety risks
Solution Approach 1:
The system changes the parameter of entering angle by calculating and enforcing a maximum safe angle (e.g., 45 degrees) when navigating bumps and slopes. The controller adjusts the vehicle's trajectory to maintain angles within safe limits, preventing unintended movements while still progressing toward the destination efficiently.
2Reliability
If the system uses comprehensive sensor data and multiple map data types to ensure safe routing, then reliability is improved, but device complexity increases
Solution Approach 1:
The system merges multiple data sources (first map data for travelable areas, second map data for safety information, and sensor data) into a unified route creation process. The controller integrates these diverse inputs to calculate safe routes, eliminating the need for separate processing systems and reducing overall complexity.
Solution Approach 2:
The controller serves multiple functions: it creates routes based on map data, processes sensor information, calculates entering angles for bumps and slopes, and adjusts navigation in real-time. This multi-functionality consolidates what could be separate systems into a single versatile control unit.
3Reliability
If the vehicle maintains entering angles of 45° or more for all bumps and slopes to ensure safety, then reliability is improved, but productivity decreases due to longer travel time
Solution Approach 1:
The system dynamically adjusts the entering angle constraint based on real-time conditions. While maintaining a minimum safe angle (e.g., 45 degrees) is enforced, the controller optimizes the actual angle used within this constraint to minimize detours and travel time, balancing safety requirements with travel efficiency.
Data Source
AI summary
A travel route creation system which creates a travel route for a personal mobility vehicle, the system including a controller configured to create the travel route in which an entering angle to a bump or a slope is set within an angle range of 45° and more based on map data indicating the bump or the slope which the personal mobility vehicle can travel over, when creating the travel route for the personal mobility vehicle to pass the bump or the slope.