Vehicle Occupant Rescue Alerts With Conditional Door Unlocking

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Solution Overview

Problem

Existing vehicle leaving systems struggle to ensure timely rescue of occupants left in parked or stopped vehicles, as administrators may not be present nearby to notice warnings or receive rescue requests, and third parties may not respond promptly.

Innovation Solution

A vehicle leaving coping system that includes sensors to detect occupants, a main controller to execute rescue controls, an outside output device to alert third parties, and an output detection device to identify their presence, allowing for targeted rescue alerts and unlocking the vehicle to facilitate timely rescue.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the vehicle is locked to ensure security, then vehicle security is improved, but rescue accessibility is worsened

Engineering Contradiction:
Improvevehicle securityVSAvoidrescue accessibility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system performs preliminary detection of occupied seats before locking the vehicle. The control device receives detection information from sensors that identify whether any seat is occupied, and only locks the vehicle if all seats are confirmed unoccupied. This preliminary action ensures security while preventing lockout of occupants, thereby resolving the contradiction between vehicle security and rescue accessibility.

Inventive Principle:
Principle #10Preliminary action

2Loss of information

If warning sounds are outputted continuously to alert third parties, then rescue notification is improved, but energy consumption is worsened

Engineering Contradiction:
Improverescue notificationVSAvoidenergy consumption
Core Design Contradiction:
Loss of informationVSUse of energy by moving object

Solution Approach 1:

The control device outputs warning sounds in a periodic manner rather than continuously. When an occupied seat is detected, the system alternates between outputting the warning sound and pausing, creating a periodic notification pattern. This approach maintains effective rescue notification while significantly reducing energy consumption compared to continuous sound output.

Inventive Principle:
Principle #19Periodic action

3Ease of operation

If the vehicle unlocks automatically when occupied to enable rescue, then rescue accessibility is improved, but vehicle security is worsened

Engineering Contradiction:
Improverescue accessibilityVSAvoidvehicle security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system applies different locking states to different seats locally. The control device receives detection information for each seat individually and determines the locking state based on the specific occupancy status of each seat. Only seats that are confirmed unoccupied are locked, while occupied seats remain unlocked. This localized approach enables rescue accessibility for occupied seats without compromising the security of unoccupied areas.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS12525118B2Vehicle leaving coping system
Publication Date: 2026.01.13 SUBARU CORP
  • US12525118B2 patent drawing
  • US12525118B2 patent drawing
  • US12525118B2 patent drawing

AI summary

A vehicle leaving coping system configured to cope with leaving of an occupant left in a parked or stopped vehicle includes the vehicle. The vehicle includes a first sensor, a main controller, an outside output device, and an output detection device. A main CPU in the main controller determines whether the occupant is to be rescued, based on a detection by the first sensor. When the occupant is to be rescued, the main CPU causes a rescue request sound to be outputted. When the third party is detected in the region around the vehicle after outputting of the rescue request sound, the main CPU causes a rescue guidance sound to be outputted. After the rescue request sound is outputted and outputting of the rescue guidance sound is started, the main CPU executes a process to unlock a locking apparatus to allow the third party to rescue the occupant.