Vehicle Wireless Connection Automation via Time-Based Credentials
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Solution Overview
Problem
Existing vehicle wireless connection systems require manual input of security credentials for initial connection, which is inconvenient and may lead to security vulnerabilities if not managed properly.
Innovation Solution
A vehicle wireless connection system that uses a controller to issue an access token to a mobile device upon successful verification of time-based credentials, allowing secure and automated connection to vehicle subsystems without manual input of passwords, with credentials managed by a server and monitored for validity and expiration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual password input is required for initial connection, then security is improved, but ease of operation deteriorates
Solution Approach 1:
The system performs preliminary actions by pre-configuring wireless network parameters (SSID, password, security protocols) in the vehicle's controller before the user arrives. When a mobile device approaches, the system automatically detects and establishes connection without requiring manual password input, thus maintaining security while improving ease of operation.
Solution Approach 2:
The vehicle's wireless connection system provides self-service functionality by automatically detecting the presence of authorized mobile devices and initiating connection processes without user intervention. The system manages credentials and authentication autonomously, eliminating the need for manual password entry while maintaining secure access.
2Ease of operation
If credentials are stored for repeated access, then ease of operation is improved, but security deteriorates
Solution Approach 1:
The system dynamically manages credentials by updating and rotating them periodically rather than storing static passwords. The controller automatically refreshes authentication parameters and invalidates old credentials, allowing seamless repeated access while maintaining evolving security measures that prevent credential reuse attacks.
Solution Approach 2:
The system changes credential parameters over time by implementing time-based validity periods and automatic credential rotation. Instead of using permanent stored passwords, the system generates new authentication parameters for each connection session or time interval, maintaining ease of access while eliminating security risks associated with static credential storage.
3Ease of operation
If automated connection is implemented, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The vehicle's controller integrates multiple functions into a single unified system: it manages wireless network configuration, handles authentication, stores and rotates credentials, and controls access to vehicle subsystems. By consolidating these functions in the existing controller rather than adding separate complex modules, the system achieves automated connection with minimal increase in overall device complexity.
Data Source
AI summary
A vehicle includes a controller, programmed to responsive to wirelessly connecting to a mobile device using a mobile credential issued from a server within a time frame specified in the mobile credential, issue an access token to the mobile device, and responsive to receiving a command authorized by the access token from the mobile device, route the command to a vehicle subsystem for execution.