Vehicle-to-X Maneuver Coordination With Abstract Trajectory Exchange
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Solution Overview
Problem
Existing vehicle-to-X communication systems face challenges in efficiently utilizing channel capacities due to high data volumes required for coordinating driving maneuvers between vehicles, leading to potential resource bottlenecks.
Innovation Solution
The method employs abstract driving maneuver information, which is communicated using vehicle-to-X communication, allowing vehicles to describe driving maneuvers with a focus on basic, abstract representations that conserve resources by minimizing data exchange, enabling vehicles to reconstruct target trajectories and maneuvers with minimal data, thus optimizing channel capacity utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If detailed target trajectory data is transmitted between vehicles for coordination, then coordination accuracy is improved, but channel capacity utilization deteriorates due to high data volumes
Solution Approach 1:
The patent extracts only the essential elements needed for coordination (driving maneuver information such as lane changes, turns, merges) from the complete target trajectory data, transmitting only these abstracted maneuver descriptors rather than full trajectory details. This reduces data volume while preserving the coordination functionality.
Solution Approach 2:
The patent transforms the representation parameters of driving maneuvers from detailed continuous trajectory coordinates to discrete abstract maneuver types (e.g., lane change, turn, merge). This parameter transformation significantly reduces the data volume required to convey the same coordination information.
2Reliability
If complete driving maneuver details are communicated, then coordination reliability is improved, but communication efficiency deteriorates due to resource consumption
Solution Approach 1:
The patent uses abstract maneuver descriptors as simplified copies or representations of the actual driving maneuvers. These abstract copies (e.g., 'lane change right') convey the essential coordination information without requiring transmission of complete detailed trajectory data, thus improving communication efficiency while maintaining coordination reliability.
3Quantity of substance
If abstract driving maneuver information is used instead of detailed trajectories, then channel capacity utilization is improved, but information completeness deteriorates
Solution Approach 1:
The patent segments the complete driving maneuver information into essential abstract components (maneuver type, target lane, timing) that are sufficient for coordination purposes. This segmentation retains the critical information needed for safe coordination while discarding redundant details, thus reducing data volume without significant information loss.
Data Source
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AI summary
A method for decentralized cooperation coordination between at least two vehicles is described, comprising the following steps: - Determining at least one abstract driving maneuver for the realization of at least one target driving maneuver by a first vehicle, - Determining driving maneuver information regarding the at least one abstract driving maneuver by the first vehicle, - Transmitting the driving maneuver information to at least one further vehicle via a vehicle-to-X interface of the first vehicle, - Receiving the driving maneuver information of the first vehicle via a vehicle-to-X interface of the further vehicle, - Calculating orThe invention reconstructs a target trajectory and/or a target driving maneuver of the first vehicle based on the driving maneuver information received by the other vehicle; compares the reconstructed target trajectory and/or the reconstructed target driving maneuver of the first vehicle with a target trajectory and/or a target driving maneuver of the other vehicle; and, if a conflict exists between the target trajectory and/or the target driving maneuver of the first vehicle and the target trajectory and/or the target driving maneuver of the other vehicle, transmits a cooperation request and/or conflict-indicating information to the first vehicle. The invention further describes a corresponding device.