Vehicle Authentication System for Car Sharing Security

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Solution Overview

Problem

Car sharing systems face challenges in preventing unauthorized use of vehicles, as existing systems lack robust authentication mechanisms, leading to potential theft and misuse.

Innovation Solution

A vehicle and terminal device system that performs user authentication by comparing identification information, locks the transmission in unauthorized states, and guides the vehicle to stop or reduce speed when authentication fails, using a communicator, controller, and display to manage user information and communication with a server.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If simple authentication is used for car sharing, then ease of operation is improved, but reliability deteriorates due to unauthorized use and theft

Engineering Contradiction:
Improveease of operationVSAvoidreliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system performs preliminary authentication by comparing the terminal device's identification information with registered user information before allowing vehicle operation. This preliminary check ensures that only authorized users can operate the vehicle, resolving the contradiction by maintaining ease of operation while preventing unauthorized use through advance verification

Inventive Principle:
Principle #10Preliminary action

2Reliability

If authentication mechanisms are added to prevent unauthorized use, then reliability is improved, but device complexity increases

Engineering Contradiction:
ImprovereliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The controller serves as an intermediary that automatically compares identification information between the terminal device and registered user information. This intermediary function implements reliable authentication without requiring complex user actions, resolving the contradiction by maintaining reliability while keeping the system simple from the user's perspective

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The controller performs multiple functions including receiving identification information, comparing it with registered data, controlling transmission locking, and providing user guidance. By consolidating these authentication-related functions into a single controller, the system achieves reliable authentication without proportionally increasing overall device complexity

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

3Reliability

If transmission locking is implemented for unauthorized users, then reliability is improved, but ease of operation worsens due to operational restrictions

Engineering Contradiction:
ImprovereliabilityVSAvoidease of operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

Instead of restricting unauthorized users directly, the system inverts the approach by enabling operation only for authenticated users. The controller compares identification information and selectively controls transmission locking, ensuring that reliable authentication is performed while maintaining ease of operation for legitimate users who experience no restrictions

Inventive Principle:
Principle #13The other way round (Inversion)

Data Source

PatentUS10525933B2Vehicle, terminal device, and method for controlling vehicle
Publication Date: 2020.01.07 HYUNDAI MOTOR CO LTD
  • US10525933B2 patent drawing
  • US10525933B2 patent drawing
  • US10525933B2 patent drawing

AI summary

A sharable vehicle is provided. The vehicle includes a storage that to stores registered user information and a communicator that communicates with a terminal device. A controller receives identification information of the terminal device from the terminal device when startup is performed. The controller unlocks a P stage of a transmission when it determined that the received identification information of the terminal device is the same as an identification number of the terminal device in the stored user information and locks a P stage of when it is determined that the received identification information of the terminal device is different from the identification number of the terminal device in the stored user information Additionally, the controller outputs authentication failure information of the terminal device and a display is configured to output the authentication failure information of the terminal device.