V2X Driving Negotiation Apparatus for Autonomous Vehicle Blind Spot Stability
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Solution Overview
Problem
Current autonomous vehicles face limitations in stability and response to blind spots and unexpected situations, particularly in uncontrolled intersections and merging roads, due to the limitations of their sensors and communication capabilities.
Innovation Solution
A driving negotiation method and apparatus that utilize V2I communication to share real-time information and define message sets for negotiation processes, allowing infrastructure devices like RSUs to support autonomous vehicles in negotiating driving strategies, thereby enhancing stability and response times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If autonomous vehicles rely only on their own sensors, then device complexity is reduced, but measurement precision and reliability deteriorate due to blind spots and limited detection capability
Solution Approach 1:
The patent combines multiple detection sources (own sensors, other vehicles' sensors, infrastructure sensors) into a unified detection system. The E2E message aggregates detection results from multiple vehicles and infrastructure devices, creating a comprehensive view that overcomes individual sensor limitations without requiring each vehicle to carry complex sensor arrays.
Solution Approach 2:
The patent introduces infrastructure devices (RSUs, traffic lights) as intermediaries that collect and share detection information. These intermediaries aggregate data from multiple sources and relay it to vehicles through standardized messages, enabling enhanced detection capability without directly increasing vehicle complexity.
2Reliability
If vehicles communicate extensive negotiation information, then reliability and stability improve, but loss of time increases due to prolonged negotiation processes
Solution Approach 1:
The patent establishes standardized negotiation message formats and protocols in advance (E2E request, E2E response, E2E acknowledgment messages). These pre-defined structures enable vehicles and infrastructure to immediately begin negotiation without establishing communication protocols during critical moments, reducing negotiation time while maintaining comprehensive information exchange.
Solution Approach 2:
The patent implements a structured message parameter system where negotiation information is organized into specific fields (vehicle state, detection results, negotiation status). This parameterization allows efficient encoding and decoding of negotiation data, enabling comprehensive reliability verification without excessive communication overhead or time delay.
3Loss of information
If V2X communication infrastructure is deployed extensively, then information sharing capability improves, but device complexity and cost increase
Solution Approach 1:
The patent designs infrastructure devices (RSUs, traffic lights) to perform multiple functions: local detection, information aggregation, message relay, and negotiation facilitation. This multi-functionality maximizes information sharing capability without proportionally increasing infrastructure complexity, as the same hardware platform supports diverse communication and detection tasks.
Solution Approach 2:
The patent segments the V2X communication system into modular components (infrastructure devices, vehicles, standardized message protocols). Each segment operates independently with well-defined interfaces, allowing incremental deployment and reducing overall system complexity. The E2E negotiation protocol can be implemented step-by-step across different infrastructure locations rather than requiring simultaneous comprehensive deployment.
Data Source
AI summary
Provided are a driving negotiation method and apparatus for supporting stability against a blind spot, an unexpected situation, etc. and a rapid judgment and response of an autonomous vehicle in various driving environments. The driving negotiation apparatus includes a wireless communication module configured to support vehicle to everything (V2X) communication and at least one processor connected to the wireless communication module. The at least one processor receives a cooperative request message from a first vehicle, broadcasts a cooperative request message and additional information required for a negotiation to surrounding vehicles, receives a cooperative response message from at least one second vehicle among the surrounding vehicles, and transmits a message indicating that the negotiation is possible or impossible to the first vehicle on the basis of the cooperative response message.