In-Vehicle Communication Control for Unauthorized State Detection
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Solution Overview
Problem
Existing in-vehicle communication systems cannot effectively protect against unauthorized access or malware, and detection results from one vehicle cannot be used to protect other vehicles.
Innovation Solution
A communication control device and method that detects unauthorized states in one vehicle and transmits related information using a normal communication device to protect both the host vehicle and other vehicles, preventing the spread of malware by avoiding unauthorized communication paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a gateway device detects unauthorized access and disconnects the identified in-vehicle communication device, then the host vehicle is protected from unauthorized access, but the detection result cannot be used to protect other vehicles from unauthorized access or malware
Solution Approach 1:
The patent introduces a server as an intermediary that collects unauthorized access detection results from multiple vehicles and distributes them to other vehicles. The server acts as a mediator that enables information sharing between vehicles without requiring direct communication between them, thus protecting the host vehicle while enabling detection result sharing across the network
Solution Approach 2:
The detection result is transformed into a universal threat indicator that can be applied across multiple vehicles. By generalizing the detection result into a shareable format that indicates unauthorized access patterns or malware signatures, the system enables one vehicle's detection to protect multiple other vehicles facing similar threats
2Reliability
If the gateway device switches the communication path to another in-vehicle communication device, then connection is maintained for the host vehicle, but the system cannot detect or protect against malware
Solution Approach 1:
The system performs preliminary malware detection and communication path validation before establishing connections. By checking for malware indicators and unauthorized states in advance, the system prevents malware infection while maintaining connection continuity through pre-validated safe communication paths
Solution Approach 2:
The system implements feedback mechanisms where detection results about malware or unauthorized states are continuously monitored and used to adjust communication path selection. The feedback loop enables the system to respond to emerging threats by dynamically switching away from compromised communication paths while maintaining connection continuity
3Adaptability or versatility
If multiple in-vehicle communication devices are provided for V2X communication, then communication versatility is improved, but the complexity of detecting and managing unauthorized access increases
Solution Approach 1:
The patent divides the unauthorized access detection function into separate modules for each communication device. Each communication device has its own detection mechanism, and the gateway device coordinates these segmented detection functions. This segmentation allows the system to maintain versatility across multiple communication devices while managing detection complexity through modular, device-specific detection routines
Data Source
AI summary
A communication control device for a host vehicle including a plurality of host vehicle communication devices each including a different communication object, the communication control device including: an unauthorized state detector to detect an unauthorized state occurring from communication using an unauthorized host vehicle communication device out of the plurality of host vehicle communication devices; and a communication controller to execute control for transmitting host vehicle unauthorized state information related to the unauthorized state by using at least one normal host vehicle communication device out of the plurality of host vehicle communication devices excluding the unauthorized host vehicle communication device when the unauthorized state is detected.