Vehicle User Profile Verification for Shared Device Mismatches

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Solution Overview

Problem

Vehicles face challenges in accurately identifying the correct user profile when multiple users share a single device or vehicle, leading to improper adjustments in settings.

Innovation Solution

A vehicle system that identifies a user profile based on communication with a user device, receives user preference packets, and discards them if the user ID does not match the intended user profile, preventing incorrect settings adjustments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the vehicle detects a smart device to identify the user and automatically load a user profile, then user convenience is improved by obviating the need for manual profile selection, but the risk of loading an incorrect user profile increases when multiple users are associated with a single device

Engineering Contradiction:
Improveuser convenienceVSAvoidprofile identification accuracy
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system implements a feedback mechanism by comparing the user ID in the received preference packets against the user ID of the identified user profile. This closed-loop verification ensures that the vehicle detects and corrects potential mismatches between the detected device and the intended user profile, thereby maintaining reliability while preserving ease of operation.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The user ID serves as an intermediary verification element between the device detection process and the profile loading process. By introducing this intermediate check, the system can confirm that the preferences being loaded actually belong to the user associated with the detected device, preventing incorrect profile loading while maintaining automatic operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Extent of automation

If the vehicle automatically loads user preferences from a detected device, then the process is simplified and user convenience is improved, but incorrect settings adjustments occur when the device does not belong to the identified user

Engineering Contradiction:
Improveautomatic profile loadingVSAvoidsettings adjustment accuracy
Core Design Contradiction:
Extent of automationVSReliability

Solution Approach 1:

The system maintains high automation by implementing an automatic verification feedback loop. The controller automatically compares user IDs and determines whether to load preferences without requiring manual user intervention, thus preserving the extent of automation while ensuring settings adjustment accuracy through the automated mismatch detection and rejection process.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs self-service verification by automatically checking whether the received preference packets match the identified user profile. The vehicle's controller autonomously determines compatibility and either loads or discards preferences without external intervention, maintaining both automation and reliability through self-verification.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If the vehicle stores user profiles for multiple users, then the system becomes more versatile in accommodating different users, but the complexity of correctly identifying and loading the appropriate profile increases

Engineering Contradiction:
Improvemulti-user supportVSAvoidprofile management complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The verification mechanism provides a simple feedback-based solution that works uniformly regardless of the number of stored profiles. The controller compares the user ID in received packets against the user ID of the currently identified profile, a process that scales efficiently with the number of users. This maintains versatility while avoiding exponential increases in complexity by using a consistent verification approach for each user.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system applies a uniform verification process for all user profiles, treating each profile identification and verification instance identically. This homogeneous approach to profile management, where the same user ID comparison logic applies to every user, simplifies the overall system architecture despite supporting multiple users, as each profile follows the same verification protocol.

Inventive Principle:
Principle #33Homogeneity

Data Source

PatentUS12311855B2Correcting a mismatched user profile for vehicle settings
Publication Date: 2025.05.27 TOYOTA JIDOSHA KK
  • US12311855B2 patent drawing
  • US12311855B2 patent drawing
  • US12311855B2 patent drawing

AI summary

A vehicle system for a vehicle includes a controller configured to: identify a user profile to be loaded based on communication with a user device; receive user preference packets containing a user ID from the user device; determine whether the user ID of the user preference packets matches with a user ID of the user profile to be loaded; and discard the user preference packets in response to determining that the user ID of the user preference packets does not match with the user ID of the user profile to be loaded.