Vehicle Access Control via Portable Device Authentication

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Solution Overview

Problem

Current vehicle access systems are inflexible and lack effective means to grant dynamic permissions, limiting access to only users with a specific key fob, while failing to provide secure and customizable access and function control.

Innovation Solution

A system and method that utilize a processor, data storage, and communications circuitry to generate a secure fob key and vehicle function control file, allowing dynamic authorization and control of vehicle access and functions through a plurality of devices, enabling secure and customizable access.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a traditional key fob system is used for vehicle access, then security is maintained through physical key possession, but access flexibility and user convenience deteriorate as only specific users with the physical key can access the vehicle

Engineering Contradiction:
Improveaccess flexibilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical key fob system with an electronic authentication system using portable devices (smartphones, tablets). The vehicle access control system communicates wirelessly with portable devices via Bluetooth or other wireless protocols, eliminating the need for physical key possession while maintaining security through cryptographic authentication mechanisms.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent enables a single portable device to serve multiple functions: it can authenticate the user for vehicle access, store multiple user profiles, and provide dynamic permission management. The system allows any authorized portable device to access the vehicle, replacing the need for multiple physical key fobs with one universal digital credential system.

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

2Ease of operation

If access is limited to users with a specific key fob, then security is maintained, but user convenience and dynamic permission granting deteriorate

Engineering Contradiction:
Improveuser convenienceVSAvoidaccess security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent implements dynamic permission management where access rights can be changed in real-time. The system can grant or revoke access permissions dynamically based on user authentication, allowing the vehicle owner to control who can access the vehicle and what functions they can use, without issuing or recalling physical key fobs. This dynamic control enhances both convenience and security.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system provides feedback mechanisms to confirm authentication and access status. When a portable device is authenticated, the system notifies the user and confirms the granted permissions. This feedback loop ensures that security protocols are properly executed while providing users with clear information about their access status, enhancing both security and user experience.

Inventive Principle:
Principle #23Feedback

3Adaptability or versatility

If multiple users are granted access without physical key possession, then access flexibility improves, but authentication security and function control complexity worsen

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

Solution Approach 1:

The patent segments the authentication system into distinct user profiles stored on portable devices. Each user can have their own profile with specific permissions, allowing the system to manage multiple users independently. The vehicle's control system processes each user's authentication separately, granting access based on their specific permissions without requiring complex manual verification for each user.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS9902368B2Apparatus, system and method for vehicle access and function control utilizing a portable device
Publication Date: 2018.02.27 VOLKSWAGEN AG
  • US9902368B2 patent drawing
  • US9902368B2 patent drawing
  • US9902368B2 patent drawing

AI summary

A system for providing dynamic access to a vehicle via a plurality of devices. A device and/or a server of an authentication network stored fob data relating to one or more key fobs linked to the vehicle, and device data that includes data relating to one or more devices linked to the key fob that are authorized to access the vehicle. The vehicle receives an access request indicating that a new device is requesting access to the vehicle, whereupon a challenge may be transmitted to one or more of the authorized devices. The one or more devices may respond, granting access to vehicle functions. The vehicle and/or authentication network generate a secure fob key and access limitations based on the response and transmit the secure fob key to the new device. Profile templates may be used to set and control vehicle access and functions.