Vehicle Door Lock Control Using Inside-Outside Terminal Position

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing door locking systems for mobile bodies, such as vehicles, often restrict locking when a terminal is inside, preventing users from conveniently unlocking the door from outside, leading to inconvenient situations.

Innovation Solution

A control system that determines the position of terminals and allows locking based on requests from a terminal outside the mobile body when the other terminal is inside, enhancing user convenience and security by permitting locking only when the correct terminal is outside.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If door locking is restricted when a terminal is positioned inside the mobile body, then security is improved (preventing terminal lock inside), but user convenience deteriorates (cannot unlock from outside)

Engineering Contradiction:
Improvedoor locking reliabilityVSAvoiduser convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The door locking system dynamically adjusts its behavior based on the position of terminals. When a terminal is detected inside the mobile body, the system permits locking requests from other terminals outside, rather than uniformly restricting all locking operations. This dynamic adaptation resolves the contradiction by making the system flexible enough to handle different usage scenarios appropriately.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The control device receives feedback about terminal positions from multiple terminals and uses this information to determine whether to permit or restrict door locking. By continuously monitoring terminal positions and adjusting locking permissions accordingly, the system maintains security while enabling convenient operation when conditions are appropriate.

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If door locking is controlled by multiple terminals, then user flexibility is improved, but system complexity increases (position determination required)

Engineering Contradiction:
Improvemulti-terminal control flexibilityVSAvoidposition determination system
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The control device is designed to handle multiple terminals with different positions and functions. It can process locking requests from any terminal while determining positions of all terminals, making the system universally applicable to various usage scenarios. This multi-functionality approach allows the system to manage complexity through standardized handling of multiple terminals rather than requiring separate systems for each terminal.

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

Data Source

PatentEP4447011A1Control device, control system, control method, and program
Publication Date: 2024.10.16 KK TOKAI RIKA DENKI SEISAKUSHO
  • EP4447011A1 patent drawingFigure 1
  • EP4447011A1 patent drawingFigure 2
  • EP4447011A1 patent drawingFigure 3

AI summary

There is provided a control unit configured to control locking of a door included in a mobile body on a basis of a first locking request transmitted from any of a first terminal or a second terminal and a position of a terminal that transmits the first locking request, the first terminal and the second terminal being each carriable by a user, wherein the control unit performs control to permit the locking of the door based on the first locking request when the first terminal is determined to be positioned inside the mobile body and the first locking request is transmitted from the second terminal determined to be positioned outside the mobile body.