Leading Vehicle Platooning Control for Secondary Collision Avoidance
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Solution Overview
Problem
Conventional platooning systems fail to provide effective strategies for minimizing damage and preventing secondary collisions when the leading vehicle cannot avoid an obstruction, due to restricted forward views of following vehicles.
Innovation Solution
An apparatus and method for controlling platooning that includes sensors, a communication circuit, and a processor to determine collision risks, transmit emergency braking and lane change commands, and manage vehicle control to minimize damage and prevent secondary collisions by adjusting lane positions and releasing platooning when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the leading vehicle maintains platooning control over following vehicles, then the coordination and efficiency of the platooning group is improved, but the ability to provide effective collision avoidance strategies to following vehicles deteriorates when the leading vehicle cannot avoid an obstruction
Solution Approach 1:
The patent divides the collision avoidance function into two independent parts: (1) the leading vehicle's own avoidance actions, and (2) independent avoidance strategies for each following vehicle. This segmentation allows following vehicles to have autonomous collision avoidance capabilities even when the leading vehicle cannot avoid an obstruction, resolving the contradiction between maintaining platooning coordination and ensuring collision avoidance reliability.
Solution Approach 2:
The system performs preliminary assessment of collision risks and pre-calculates avoidance strategies for following vehicles before a collision occurs. By determining the possibility of collision and preparing lane change or braking commands in advance, the system ensures that following vehicles can immediately execute avoidance maneuvers when needed, maintaining reliability while preserving platooning efficiency.
2Device complexity
If the following vehicle maintains a restricted forward view during platooning, then the platooning structure is simplified and communication is reduced, but the ability to detect obstructions and avoid secondary collisions deteriorates
Solution Approach 1:
The leading vehicle acts as an intermediary that detects obstructions and transmits this information to following vehicles via V2V communication. This allows following vehicles to have obstruction detection capability without needing their own forward viewing systems, maintaining simplified platooning structure while improving detection capability through the leading vehicle's sensors and communication relay.
3Loss of time
If the leading vehicle transmits emergency commands to following vehicles, then the response time for collision avoidance is reduced, but the risk of inappropriate commands causing additional hazards increases
Solution Approach 1:
The system incorporates feedback mechanisms where the leading vehicle assesses the suitability of avoidance commands before transmission, and following vehicles can provide feedback on their current state and capability to execute commands. This feedback loop ensures that emergency commands are appropriate and safe, reducing the risk of creating additional hazards while maintaining fast response times.
Solution Approach 2:
The system dynamically changes command parameters based on real-time conditions, including the type of command (braking vs. lane change), the intensity of braking, and the specific lane change maneuver. By adjusting these parameters according to the situation, the system minimizes potential hazards while ensuring effective collision avoidance.
Data Source
AI summary
An apparatus for controlling platooning in a leading vehicle can determine whether a collision between a leading vehicle and an object in front of the leading vehicle will occur based on data measured by one or more sensors; when the collision between the leading vehicle and an object in front of the leading vehicle is determined to occur, determine a possibility of a collision when a following vehicle brakes or a possibility that the following vehicle will change its lane; determine a command associated with a lane change of the following vehicle based on the determined possibility; transmit the command associated with the lane change of the following vehicle and an emergency braking command to the following vehicle via the communication circuit; and release the platooning.