Vehicle Authentication Fallback After Biometric Access Failure

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

In existing vehicle authentication systems, the biometric authentication function cannot be switched off when the registered biometric information becomes unusable, leading to operational issues if, for example, a finger registered for fingerprint information is injured and cannot be used.

Innovation Solution

An authentication device that includes a processor to execute first and second authentications based on biometric and identification information, allowing the biometric authentication function to be switched off when either authentication is successful, and notifying the user of this change, enabling vehicle start through alternative identification methods.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If biometric authentication is used to ensure security, then security against theft is improved, but the system becomes unable to switch off the biometric authentication function when registered biometric information becomes unusable

Engineering Contradiction:

ImprovesecurityVSAvoidability to switch off biometric authentication function

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The system changes the authentication mode parameter from biometric-only to alternative authentication methods when biometric information becomes unusable. The processor detects authentication failure and switches to accepting alternative identification information, allowing the biometric authentication function to be effectively deactivated without compromising system security.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The authentication system is segmented into multiple independent authentication methods: biometric authentication and alternative authentication (using mobile device identification). When biometric authentication fails repeatedly, the system transitions to accepting alternative authentication, providing flexibility while maintaining security through layered authentication approaches.

Inventive Principle:

Principle #1Segmentation

2Reliability

If biometric authentication function is kept ON for security, then security is maintained, but user convenience deteriorates when biometric information is unavailable due to injury or other reasons

Engineering Contradiction:

ImprovesecurityVSAvoiduser convenience

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The authentication system dynamically adjusts its requirements based on usage patterns. When biometric authentication succeeds initially but then fails repeatedly, the system dynamically switches to accepting alternative authentication methods, making the system adaptable to changing user conditions while maintaining security protocols.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system uses feedback from authentication attempts to determine the appropriate authentication method. When biometric authentication fails multiple times, the system receives feedback indicating potential biometric unavailability and switches to alternative authentication, improving user convenience while maintaining security through conditional authentication pathways.

Inventive Principle:

Principle #23Feedback

3Adaptability or versatility

If multiple authentication methods are provided for flexibility, then adaptability is improved, but device complexity increases

Engineering Contradiction:

Improveauthentication method flexibilityVSAvoidauthentication system complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The authentication device is designed with multi-functionality to handle both biometric authentication and alternative authentication methods. The processor can execute either authentication type based on conditions, making the device universal in its authentication capabilities without requiring separate dedicated systems for each method.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12077129B2Authentication device, method, non-transitory storage medium, and vehicle

Publication Date: 2024.09.03 TOYOTA JIDOSHA KK

AI summary

An authentication device to be mounted on a vehicle includes a processor. The processor is configured to execute first authentication based on biometric information acquired from a user and biometric information preregistered in the vehicle. The processor is configured to execute second authentication based on identification information acquired from a mobile device of the user and identification information preregistered in the vehicle. The processor is configured to permit start of the vehicle when at least one of the first authentication and the second authentication is successful. The processor is configured to set an authentication function of the first authentication from ON to OFF when at least one of the first authentication and the second authentication is successful.