Portable Device Vehicle Access Credential Sharing
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Solution Overview
Problem
Current wireless communication technologies, such as Bluetooth, face limitations in securely and efficiently enabling access to vehicle operations using portable devices, particularly in ensuring secure authentication and restricting access to prevent unauthorized use.
Innovation Solution
A system utilizing portable devices with Bluetooth or Bluetooth Low Energy connections to obtain and share vehicle access credentials, allowing secure activation of vehicle operations while ensuring that the vehicle can only be operated with a valid credential present, and enabling secondary devices to access restricted vehicle functions with predefined usage parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If Bluetooth or Bluetooth Low Energy connections are used for wireless communication between portable devices and vehicle, then ease of operation and accessibility are improved, but security and reliability of vehicle access control deteriorate
Solution Approach 1:
The patent introduces portable computing devices as intermediary elements between the user and the vehicle access control system. These devices receive vehicle access credentials from the vehicle, store them securely, and present them when needed, thereby mediating the authentication process and enhancing security while maintaining ease of wireless operation
Solution Approach 2:
The system creates digital copies of vehicle access credentials that can be stored on portable devices. Instead of requiring physical keys or direct vehicle interface interaction, the access credentials are copied to portable devices, enabling wireless access while maintaining security through controlled credential distribution and validation
2Adaptability or versatility
If vehicle access credentials are transmitted to multiple portable devices, then adaptability and user convenience are improved, but security and access control deteriorate
Solution Approach 1:
The patent applies different access credential types and security parameters to different portable devices based on their specific authorization levels. Each device receives credentials tailored to its intended use case, with varying permissions and access scopes, thereby enabling multi-device adaptability while maintaining security through differentiated access control
Solution Approach 2:
The system dynamically adjusts access credentials and permissions based on device identity, user authorization level, and contextual factors. Access rights are not static but can be modified, revoked, or updated based on changing security requirements, enabling flexible multi-device support while preventing unauthorized access through active credential management
Data Source
AI summary
A primary portable device can access a vehicle by transmitting an activation message including a vehicle access credential to the vehicle. The primary portable device can additionally enable a secondary portable device to access the vehicle by transmitting the vehicle access credential to the secondary portable device. The connections between the primary portable device, secondary portable device, and vehicle can be based on a short-range wireless protocol, such as Bluetooth or Bluetooth LE.