Platooning System Vehicle Arrangement for Intersection Integrity
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Solution Overview
Problem
Existing platooning systems face challenges in maintaining the integrity of a vehicle platoon as vehicles approach intersections, where delayed signal transmission can cause vehicles at the rear to fall behind, potentially dividing the platoon into separate parts.
Innovation Solution
A platooning system that arranges vehicles in ascending order of driving performance from front to rear, with a management device controlling vehicle formations and arrangements to optimize travel routes and prevent division by adjusting platoon length and formation based on road width and intersection timing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vehicles are arranged in ascending order of driving performance from front to rear, then the platoon integrity is maintained by ensuring rear vehicles can follow the leading vehicle despite signal delays, but the system complexity increases due to the need for performance evaluation and dynamic arrangement
Solution Approach 1:
The management device evaluates and determines the driving performance of each vehicle in advance before forming the platoon. Based on this pre-evaluation, vehicles are arranged in ascending order of driving performance from front to rear, ensuring that vehicles with higher following capability are positioned at the rear where signal delays occur, thereby maintaining platoon integrity without requiring real-time complex adjustments
Solution Approach 2:
The system changes the arrangement parameter of vehicles based on their driving performance characteristics. By evaluating parameters such as braking performance, acceleration performance, and minimum turning radius, the system dynamically adjusts the positional arrangement of vehicles in the platoon to optimize following capability and prevent platoon division
2Reliability
If the platoon length and formation are dynamically adjusted based on road width and intersection timing, then the time spent at intersections is minimized preventing platoon division, but the control complexity increases
Solution Approach 1:
The management device dynamically adjusts the platoon formation and arrangement based on real-time road conditions, particularly road width and intersection timing. The system changes the lateral arrangement of vehicles (single file vs. multiple rows) and their longitudinal positions to optimize the platoon's passage through intersections, minimizing the time spent in critical zones where platoon division could occur
Solution Approach 2:
The system acquires multiple travel routes to a given destination in advance and selects the optimal route that the platoon can travel along without being divided. By planning the route and formation adjustments beforehand, the system reduces the need for complex real-time control decisions during intersection passage
3Reliability
If vehicles with lower driving performance are rejected from platoon inclusion, then the platoon integrity is maintained, but the adaptability of the system decreases
Solution Approach 1:
The management device evaluates the driving performance of each vehicle using specific parameters (braking performance, acceleration performance, minimum turning radius, vehicle size) and compares them against prescribed criteria. Vehicles that meet the performance thresholds are included in the platoon, while those that do not are rejected, ensuring that only vehicles capable of maintaining platoon integrity are grouped together
Data Source
AI summary
A platooning system for causing multiple vehicles to travel in a platoon includes: a management device configured to set an order of the vehicles in the platoon; a transmission device mounted on each vehicle and configured to transmit driving information regarding a driving state of the vehicle; a reception device mounted on each vehicle and configured to receive the driving information of at least one of the vehicles; and a control device mounted on each vehicle and configured to control an operation of the vehicle based on the driving information, wherein the management device is configured to arrange the vehicles from a front end to a rear end with respect to a travel direction in an ascending order of driving performances of the vehicles.