Vehicle Access Control via Remote Server Authentication

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Solution Overview

Problem

Conventional vehicle protection systems are inadequate for shared vehicles, as they rely on physical keys and identification methods that are costly, prone to tampering, and may violate privacy regulations, especially when using a car-sharing server for verification.

Innovation Solution

A remote server-based system that eliminates the need for physical identification media by using mobile phone numbers and vehicle identification numbers for authentication, allowing vehicle assignment and authorization before user entry, integrated into the existing immobilizer chain with enhanced security measures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a physical identification medium (identification card) is used for vehicle access control, then the vehicle can be securely assigned to authorized users, but the system requires costly physical readers in the vehicle, prior issuance of physical media, and maintains privacy compliance risks

Engineering Contradiction:
Improvevehicle access control reliabilityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the identification function from the vehicle and relocates it to the user's mobile device. The vehicle no longer contains physical readers or stores identification data, eliminating the need for physical identification media while maintaining secure access control through remote server verification

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces a remote server as an intermediary between the user's mobile device and the vehicle. The server receives identification data from the mobile device, verifies authorization, and communicates with the vehicle's control system, eliminating the need for physical readers in the vehicle while maintaining secure access control

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a round trip communication between vehicle and car-sharing server is implemented for user verification, then authorized users can be identified, but the user must wait in the vehicle for the return trip communication

Engineering Contradiction:
Improveuser authorization verificationVSAvoiduser waiting time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent performs the identification and authorization verification before the user enters the vehicle. The mobile device transmits identification data to the remote server in advance, and the server prepares the authorization response before the user needs to access the vehicle, eliminating waiting time

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The remote server acts as an intermediary that receives identification data from the mobile device, performs verification, and sends authorization commands to the vehicle's control system. This eliminates the need for round-trip communication between the vehicle and server during user access, as the server handles verification remotely

Inventive Principle:
Principle #24Intermediary (Mediator)

3Speed

If a database is located in the vehicle for checking user authorization, then verification can be performed locally, but this likely contravenes privacy and data processing regulations

Engineering Contradiction:
Improveauthorization verification speedVSAvoidprivacy regulation compliance
Core Design Contradiction:
SpeedVSObject-affected harmful factors

Solution Approach 1:

The patent extracts the database and data processing functions from the vehicle and relocates them to a remote server. The vehicle contains only the control system that receives authorization commands from the server, eliminating local storage of personal data and ensuring compliance with privacy regulations while maintaining verification capability

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The remote server serves as an intermediary that hosts the database and performs all data processing operations. The vehicle's control system communicates with the server to verify authorization, allowing local verification speed without requiring sensitive data to be stored or processed in the vehicle, thus complying with privacy regulations

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP2903867B1System for protecting a motor vehicle
Publication Date: 2019.06.19 RENAULT SA
  • EP2903867B1 patent drawingFigure 1~2
  • EP2903867B1 patent drawingFigure 3
  • EP2903867B1 patent drawingFigure 4~5

AI summary

A system for protecting a motor vehicle. A system for protecting a motor vehicle (3) provided with an engine, comprising: -a remote server (7) for transmitting a server authorisation order (103); -a system (1) for controlling the operation of the engine; -unlocking means (2) for unlocking the system for controlling the operation of the engine; and -communication means (6) fitted in the vehicle and configured to receive said server authorisation order (103) and communicate with the unlocking means (2). The remote server (7) is configured to transmit the authorisation order (103) only if it receives a message (102) comprising a first identification means (9) for identifying the user (8) and a second identification means (10) for identifying a vehicle (3) and if the vehicle (3) identified by the second identification means (10) can be attributed to the user (8) identified by the first identification means (9).