Multi-Lane Gap Coordination for Safer Vehicle Maneuvers
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Solution Overview
Problem
Driving maneuvers that require a gap in multiple lanes are dangerous and often result in long waiting times due to the risk of vehicles encountering a quasi-stationary obstacle, as existing methods do not effectively manage traffic flow across multiple lanes.
Innovation Solution
A method utilizing V2X communication where vehicles request and coordinate a gap in the traffic flow by designating a maneuver leader to communicate and coordinate the trajectories of participating vehicles, ensuring a sufficient number of vehicles reduce speed or stop to create a safe gap, using communication methods like C-V2X, NR-V2X, or antenna beamforming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If vehicles perform driving maneuvers that create gaps in multiple lanes, then the first vehicle can cross or maneuver through traffic flow, but the maneuver creates dangerous situations with long waiting times and high collision risk
Solution Approach 1:
The system performs preliminary actions by having the first vehicle send request signals to upstream vehicles before the maneuver begins. These upstream vehicles then send signaling signals indicating their intent to comply, allowing the system to determine in advance whether a sufficient minimum number of vehicles are available to create the required gap. This preliminary coordination reduces collision risk by ensuring the maneuver can be safely executed before it starts.
Solution Approach 2:
The system implements feedback through a closed-loop communication process where the first vehicle requests a gap, upstream vehicles respond with their compliance status, and the system continuously monitors whether a sufficient minimum number of vehicles are available. This feedback mechanism allows real-time assessment of safety conditions and enables dynamic adjustment of the maneuver execution timing.
2Reliability
If vehicles wait for sufficient space to create a safe gap in multiple lanes, then collision risk is reduced, but waiting times become excessively long
Solution Approach 1:
The system performs preliminary coordination by having upstream vehicles send signaling signals in advance indicating their intent to comply with the gap creation request. This allows the first vehicle to determine beforehand whether a sufficient minimum number of vehicles are available to create the required gap, enabling the maneuver to be executed promptly when conditions are favorable rather than waiting indefinitely.
Solution Approach 2:
Upstream vehicles autonomously assess their own ability to create the required gap and self-select to participate by sending signaling signals. This self-service approach eliminates the need for centralized control and allows the system to quickly identify available vehicles, reducing waiting time while maintaining safety through decentralized decision-making.
3Reliability
If the system waits for a sufficient number of vehicles to be available before organizing the maneuver, then safety is improved, but the maneuver execution is delayed
Solution Approach 1:
Upstream vehicles autonomously determine their own ability to participate in creating the gap and self-select by sending signaling signals. This self-service mechanism allows the system to quickly identify a sufficient minimum number of available vehicles without centralized coordination delays, enabling prompt maneuver execution while maintaining safety through distributed decision-making.
Solution Approach 2:
Once a sufficient minimum number of vehicles are identified as available through the signaling process, the system rushes through with the maneuver execution without further delays. The pre-established communication channels and predetermined coordination protocol allow the maneuver to be implemented immediately when conditions are favorable, maximizing productivity while maintaining safety.
4Ease of operation
If vehicles in upstream positions send request signals to create a gap, then the first vehicle can execute the maneuver, but coordination complexity increases
Solution Approach 1:
The communication coordination is segmented into distinct functional stages: the first vehicle sends request signals to upstream vehicles, upstream vehicles independently send signaling signals indicating their compliance status, and the system determines availability based on received signals. This segmentation simplifies the overall coordination complexity by breaking it into manageable, independent steps that can be executed in sequence.
Solution Approach 2:
The communication signals act as intermediaries that facilitate coordination between the first vehicle and upstream vehicles without requiring direct complex interactions. The request signals and signaling signals serve as standardized intermediary messages that simplify the coordination process, allowing vehicles to exchange necessary information through a structured communication protocol rather than complex direct negotiation.
Data Source
AI summary
The invention relates to a method for carrying out a driving maneuver for creating a gap in the traffic flow, which is multiple lanes wide, involving a first vehicle and a plurality of second vehicles. The first vehicle, which requests the gap in the traffic flow periodically sends corresponding request signals at least to a plurality of second vehicles. The second vehicles that intend to comply with the request send out corresponding signaling signals. As soon as a sufficient minimum number of second vehicles that intend to comply with the request can be determined, the second vehicles participating in the driving maneuver for creating the gap in the traffic flow are informed. The second vehicles participating in the driving maneuver agree on the beginning of the driving maneuver and mutually coordinate their trajectories. One of the second vehicles is designated as the maneuver leader and transmits at least one characteristic of the gap in the traffic flow to the first vehicle.