Vehicle Evacuation Control Across Floors During Facility Disasters

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Solution Overview

Problem

Existing vehicle control systems for ultra-compact mobility devices lack effective disaster response strategies, particularly in large-scale facilities, making it difficult for users to evacuate safely during emergencies like fires or earthquakes.

Innovation Solution

A vehicle control method that re-routes vehicles to temporary evacuation points within a movable range, using onboard and facility sensors to identify safe areas and guide vehicles to collection points or evacuation exits, even in the absence of communication with a central server.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the vehicle control system directs users to evacuate to a priority evacuation place on a different floor, then the evacuation effectiveness is improved, but the user burden increases due to the need to move between floors during a disaster

Engineering Contradiction:
Improveevacuation effectivenessVSAvoiduser burden
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system pre-identifies and designates priority evacuation places on different floors before disasters occur. When a disaster is detected, the vehicle control device automatically directs the mobility device to these pre-planned evacuation locations, eliminating the need for users to make complex decisions during the emergency and reducing their burden.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The vehicle control device acts as an intermediary between the disaster detection system and the mobility device. It receives disaster information, determines appropriate evacuation destinations based on the vehicle's current location and building layout, and automatically controls the mobility device to navigate to the selected evacuation place, shielding users from the complexity of evacuation route planning.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If the vehicle control system automatically controls the mobility device to move to evacuation places, then the evacuation efficiency is improved, but the device complexity increases

Engineering Contradiction:
Improveevacuation efficiencyVSAvoidcontrol system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The vehicle control device leverages existing components and functionalities of the mobility device (such as the automatic following travel function and basic navigation capabilities) to achieve evacuation automation. By repurposing existing sensors, processors, and control mechanisms for disaster response, the system avoids adding significant complexity while maintaining automated evacuation efficiency.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of operation

If the system designates evacuation places on the same floor as the vehicle, then the user burden is reduced, but the evacuation effectiveness decreases when the current floor is unsafe due to disaster

Engineering Contradiction:
Improveuser burdenVSAvoidevacuation effectiveness
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The evacuation destination selection is dynamic rather than static. The vehicle control device continuously monitors disaster information and automatically adjusts the evacuation destination based on the vehicle's current location and the safety status of different floors. When the current floor is unsafe, the system dynamically selects evacuation places on different floors, balancing user burden reduction with evacuation effectiveness.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS12411489B2Vehicle control method, control device, and vehicle control system
Publication Date: 2025.09.09 DENSO TEN LTD
  • US12411489B2 patent drawing
  • US12411489B2 patent drawing
  • US12411489B2 patent drawing

AI summary

A vehicle control method to be executed by a controller for controlling a vehicle that travels in an area including a plurality of floors, wherein the controller is configured to: in a case where detecting occurrence of a disaster and determining that a floor on which the vehicle exists is different from a floor on which a first evacuation place being a priority evacuation place exists, set a destination to a second evacuation place existing on a floor that is a same as the floor on which the vehicle exists; and cause the vehicle to move to the second evacuation place.