Digital Key Authentication Fallback for Vehicle Startup Failures
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Solution Overview
Problem
Existing digital key systems fail to confirm the presence of a digital key within a vehicle due to communication interface malfunctions, preventing vehicle startup.
Innovation Solution
Implement biometric authentication at the digital key device to enable vehicle startup even when the communication interface is malfunctioning, ensuring authentication results are used to authorize vehicle activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If biometric authentication is implemented at the digital key device, then vehicle startup is enabled even when communication interface is malfunctioning, but device complexity increases
Solution Approach 1:
The system performs biometric authentication in advance at the digital key device before vehicle startup is requested. The authentication result is stored and can be used even when the communication interface malfunctions during the startup process, ensuring reliable vehicle activation without requiring real-time communication.
Solution Approach 2:
The biometric authentication result acts as an intermediary credential that bridges the gap between the digital key device and the vehicle control system. When communication interface fails, this pre-validated authentication result serves as a mediator to enable vehicle startup without direct real-time communication.
2Reliability
If authentication is required at the digital key device, then security is enhanced, but ease of operation deteriorates
Solution Approach 1:
The digital key device performs biometric authentication autonomously using its own built-in authentication unit. The user simply needs to provide biometric data (fingerprint, face, iris) at the device, and the authentication is automatically completed without requiring manual intervention or additional steps, maintaining ease of operation while enhancing security.
3Reliability
If communication interface malfunction detection is implemented, then system reliability is improved, but device complexity increases
Solution Approach 1:
The vehicle control system continuously receives authentication results from the digital key device and uses this feedback to detect communication interface malfunctions. When authentication results stop arriving or show error patterns, the system identifies communication failure and switches to using pre-stored authentication results, enabling reliable malfunction detection without complex monitoring hardware.
Data Source
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AI summary
A vehicle includes a memory and a processor coupled to the memory. The processor is configured to determine whether or not a communication interface is malfunctioning, the communication interface being configured to perform communication for confirming that a device, which holds a digital key for activation, is inside a vehicle cabin, and in a case in which it is determined that the communication interface is malfunctioning, perform processing that enables activation based on a result of authentication of the device.