V2X Maneuver Messaging with Yaw, Roll, and Signal Elements
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Solution Overview
Problem
Autonomous and semi-autonomous vehicles face challenges in accurately predicting the motion of surrounding vehicles and objects due to inadequate knowledge of their static and dynamic characteristics, leading to inefficient and potentially unsafe maneuver planning.
Innovation Solution
Enhanced Vehicle-to-Everything (V2X) communications using defined Information Elements (IEs) that convey detailed information about detected vehicle models, pitch, roll, yaw rates, and turn signals, enabling more accurate prediction and planning of vehicle maneuvers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional V2X messaging is used with limited information elements, then communication simplicity is maintained, but maneuver planning accuracy and safety are reduced
Solution Approach 1:
The V2X message is segmented into distinct Information Elements (IEs), each carrying specific characteristics such as pitch rate, roll rate, yaw rate, brake light status, and turn signal status. This segmentation allows the receiving vehicle to process specific maneuver-related data without being overwhelmed by a monolithic complex message structure.
Solution Approach 2:
The patent adds a new dimension to V2X communication by incorporating three-dimensional rotational characteristics (pitch, roll, yaw rates) beyond traditional linear motion parameters. This dimensional expansion enables more comprehensive maneuver prediction while maintaining a structured IE-based message framework.
2Productivity
If conservative maneuver planning is assumed without knowledge of surrounding vehicle behavior, then safety is maintained, but maneuver efficiency and responsiveness are reduced
Solution Approach 1:
The transmitting vehicle provides feedback about its intended maneuvers through V2X messages containing IE data such as brake light status and turn signal status. The receiving vehicle uses this feedback to adjust its maneuver planning, transitioning from conservative assumptions to informed decision-making that improves efficiency while maintaining safety.
Solution Approach 2:
The transmitting vehicle communicates its intended maneuvers in advance through V2X messaging before executing them. This preliminary action allows the receiving vehicle to plan responsive maneuvers proactively rather than reactively, improving overall system efficiency and reducing unnecessary conservative delays.
3Loss of information
If detailed vehicle characteristics data is exchanged via V2X, then environmental awareness is improved, but communication bandwidth and processing requirements increase
Solution Approach 1:
The patent extracts only the most relevant maneuver-characterizing Information Elements from the complete set of possible vehicle data. By selecting specifically pitch rate, roll rate, yaw rate, brake light status, and turn signal status, the system achieves improved environmental awareness while minimizing communication overhead and processing energy requirements.
Data Source
AI summary
Techniques disclosed provide for enhanced V2X communications by defining information Elements (IE) for V2X messaging between V2X entities. For a transmitting vehicle that sends a V2X message to a receiving vehicle, these IEs are indicative of a detected vehicle model type detected by the transmitting vehicle of a detected vehicle; a pitch rate of the transmitting vehicle, a detected vehicle, or a detected object; a roll rate of the transmitting vehicle, a detected vehicle, or a detected object; a yaw rate of a detected vehicle, or a detected object; a pitch rate confidence; a roll rate confidence; an indication of whether a rear brake light of a detected vehicle is on; or an indication of whether a turning signal of a detected vehicle is on; or any combination thereof. With this information, the receiving vehicle is able to make more intelligent maneuvers than otherwise available through traditional V2X messaging.