V2X Message Framing for Autonomous Driving Intent and Capability
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Solution Overview
Problem
Current V2X communication systems are limited in providing information for autonomous driving functions beyond Level 1 automation, failing to meet the enhanced requirements for higher levels of autonomous vehicles.
Innovation Solution
The proposed V2X communication system includes an in-vehicle computing system that extracts driving intention, capability, and mode data from autonomous driving systems, creating a message frame with this information that can be sent to the V2X system as a stand-alone message or an extension to a Basic Safety Message.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If current V2X communication systems are used, then basic driver assistance functions are supported, but autonomous driving functions above Level 1 cannot be adequately supported
Solution Approach 1:
The patent segments autonomous driving information into distinct categories including driving intention data, driving capability data, and driving mode data. Each category is extracted and transmitted separately through message frames, allowing receiving vehicles to process specific information types independently while maintaining comprehensive autonomous driving support capability.
Solution Approach 2:
The patent extends the traditional V2X communication framework by adding a new dimension of autonomous driving-specific information exchange. This is achieved through creating dedicated message frames that operate alongside existing Basic Safety Messages, enabling higher-level autonomous driving functions without disrupting current V2X operations.
2Reliability
If autonomous driving information is extracted and transmitted through message frames, then neighboring vehicles can make accurate driving policy decisions, but the system complexity increases
Solution Approach 1:
The patent designs message frames with universal structures that can carry multiple types of autonomous driving information (intention, capability, and mode data) in a standardized format. This multi-functional message frame design allows a single processing module to handle various information types without requiring separate processing paths for each data category.
Solution Approach 2:
The patent introduces extraction modules as intermediary components that bridge the autonomous driving system and the V2X communication system. These modules automatically extract and format the necessary information, shielding the complex autonomous driving system internals from direct exposure while providing standardized data streams for communication.
3Loss of information
If driving intention, capability, and mode data are extracted from autonomous driving systems, then comprehensive autonomous driving information is available, but the data extraction and processing requirements increase
Solution Approach 1:
The patent implements dedicated extraction modules that selectively extract only the necessary autonomous driving information (intention, capability, and mode data) from the complex autonomous driving system. This extraction approach isolates the essential information needed for V2X communication while leaving the rest of the autonomous driving system unchanged and operational.
Data Source
AI summary
An in-vehicle computing system and method that extracts driving intention data, driving capability data, and a driving mode data from one or more vehicle systems including an autonomous driving system. Autonomous driving information is derived from the extracted data. A message frame is created to include the autonomous driving information and sent to a V2X system.