Vehicle Travel Data Authentication for Occupant Protection Control
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Solution Overview
Problem
Existing vehicle control systems face challenges in determining the trustworthiness of travel data received from other vehicles, potentially leading to inappropriate vehicle controls when false or malicious data is transmitted.
Innovation Solution
A vehicle system that includes a group data obtainer, travel data obtainer, determiner, and control processor to authenticate trustworthy travel data from associated vehicles, allowing secure and appropriate vehicle controls based on verified data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If travel data is shared between multiple vehicles without authentication, then the quantity of available travel data increases, but the reliability of the data decreases due to potential false or malicious data
Solution Approach 1:
A server acts as an intermediary between vehicles to manage group data and authentication. The server stores group IDs and vehicle IDs, and vehicles communicate through this intermediary to verify trust relationships before sharing travel data, thus maintaining reliability while enabling multiple data sources
Solution Approach 2:
Authentication and group data registration are performed in advance before actual travel data sharing. Vehicles pre-register their vehicle IDs and group IDs in the server, establishing trust relationships beforehand. This preliminary authentication ensures that only verified vehicles can share and receive travel data, maintaining reliability while enabling broad data sharing
2Adaptability or versatility
If vehicle control is performed based on unverified travel data from other vehicles, then the adaptability of vehicle control increases, but the safety of occupants decreases due to potential malicious data
Solution Approach 1:
The server acts as a trusted intermediary that verifies the authenticity of travel data before it is used for vehicle control. The control processor queries the server to confirm that the transmitting vehicle is a trusted vehicle in the same group, ensuring that adaptability does not compromise occupant safety
Solution Approach 2:
The system implements feedback verification by continuously checking group data with the server before executing control actions. The control processor receives travel data, verifies the source through server consultation, and only executes control when authentication is confirmed, creating a feedback loop that maintains safety while enabling adaptive control
3Reliability
If mutual authentication between drivers is required for data sharing, then the reliability of data exchange increases, but the ease of operation decreases due to additional authentication steps
Solution Approach 1:
Instead of requiring direct driver-to-driver authentication, the system uses copied verification through the server. The server stores copies of group ID and vehicle ID relationships, allowing automatic verification without direct driver interaction. This copying mechanism maintains reliability while simplifying operation
Solution Approach 2:
The system enables self-service authentication where vehicles automatically verify each other's credentials through the server without requiring manual driver intervention. The control processor autonomously queries the server and processes authentication, making data sharing easy while maintaining reliability through automated verification
Data Source
AI summary
A vehicle includes a group data obtainer, a travel data obtainer, a determiner, and a control processor. The vehicle includes a first vehicle. The travel data obtainer acquires travel data including at least data on activation of an occupant protection system from one or more second vehicles including a particular vehicle. The control processor performs a control adapted to secure safety of an occupant of the first vehicle, based on the travel data when the determiner makes a determination that the travel data has been acquired from the particular vehicle. The control processor performs a control to notify a driver who drives the first vehicle of the travel data when the determiner makes a determination that the travel data has been acquired from a vehicle other than the particular vehicle.