Vehicle Travel Control With Network Anomaly Detection Backup
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Solution Overview
Problem
Vehicles are vulnerable to unauthorized access from outside, leading to potential activation of unintended functions due to cyber-attacks, which existing security systems struggle to effectively defend against.
Innovation Solution
A travel control system equipped with a determination processor that monitors the in-vehicle communication network for inconsistencies in sender and recipient identifiers, triggering an abnormality signal when a threshold of unconformities is reached, allowing a control device to remotely control the vehicle using backup information to prevent unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the vehicle is connected to the network environment for remote communication and control functions, then the adaptability and functionality of the vehicle are improved, but the vulnerability to unauthorized access and cyber-attacks increases
Solution Approach 1:
The determination processor acts as an intermediary between the in-vehicle communication network and the external network environment. It monitors control information passing through the network, detects unconformities in sender and recipient identifiers, and prevents unauthorized access before it can affect the vehicle's control systems.
Solution Approach 2:
The system implements continuous feedback by monitoring control information in real-time, comparing sender and recipient identifiers, and detecting unconformities. When abnormality reaches the threshold, feedback triggers the abnormality signal transmission to the control device, enabling responsive security measures.
2Reliability
If security monitoring is implemented to detect unauthorized access, then the reliability of the vehicle control system is improved, but the device complexity increases due to additional processors and monitoring mechanisms
Solution Approach 1:
The determination processor is designed with multi-functionality, serving both as a network interface component and a security monitoring device. It performs dual functions of managing communication between the in-vehicle network and external networks while simultaneously detecting unauthorized access attempts, thereby reducing the need for separate dedicated security hardware.
3Loss of time
If real-time monitoring of control information is performed to detect abnormality, then the response time to cyber-attacks is improved, but the use of energy increases due to continuous processing
Solution Approach 1:
The determination processor performs partial monitoring by focusing specifically on critical control information with sender and recipient identifiers rather than processing all data traffic equally. This selective monitoring approach enables timely detection of unauthorized access while reducing overall energy consumption compared to comprehensive full-system monitoring.
Data Source
AI summary
A travel control system for a vehicle includes: a plurality of processors mounted on the vehicle; a determination processor mounted on the vehicle; an in-vehicle communication network; and a control device configured to establish wireless communication with the vehicle through a network environment and including a backup processor. The determination processor takes a count of unconformities between a sender identifier and a recipient identifier of the control information transmitted and received by the processors through the in-vehicle communication network. When the count of unconformities becomes larger than a predetermined threshold value, the determination processor determines that an abnormality is present, and transmits an abnormality signal to the control device through the network environment. Upon receiving the abnormality signal, the control device transmits the control information held by the backup processor, to the vehicle through the network environment, and makes a remote control of the vehicle.