Vehicle Platooning Overtaking Coordination via Dynamic Speed Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In platooning systems, the time taken to overtake a vehicle between platoon lines is excessively long, especially when the platoon line is long and the speed difference between the groups is small, leading to traffic congestion.
Innovation Solution
An apparatus and method for controlling platooning that temporarily adjusts the platoon line speed and inter-vehicle distance by sharing information between platooning groups, determining the necessity to overtake, calculating the expected time to overtake, and adjusting vehicle speeds using a processor, which performs vehicle-to-vehicle communication to optimize overtaking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If platooning vehicles maintain close distances to reduce fuel consumption and increase road utilization, then fuel efficiency improves and road utilization increases, but the time to overtake between platoon lines significantly increases causing traffic congestion
Solution Approach 1:
The system dynamically adjusts the inter-vehicle distance and speed of the platoon line based on overtaking requirements. When overtaking is detected, the platoon line temporarily increases distance and speed to facilitate faster overtaking, then returns to normal platooning parameters. This dynamic adjustment resolves the contradiction by allowing close distances for fuel efficiency during normal operation while enabling increased distances for reduced overtaking time when needed.
Solution Approach 2:
The system changes key parameters (inter-vehicle distance and platoon line speed) based on the overtaking situation. The processor detects overtaking events and modifies the distance parameter from the normal close distance to a larger distance, and adjusts the speed parameter to increase the relative speed difference. These parameter changes enable the system to achieve both fuel efficiency during normal platooning and reduced overtaking time when required.
2Stability of the object's composition
If the platoon line is long and speed difference between groups is small, then platooning stability is maintained, but the time taken to overtake is significantly increased causing traffic congestion
Solution Approach 1:
The system maintains platoon stability during normal operation through consistent spacing and speed control, but dynamically transitions to an overtaking mode when needed. In this mode, the platoon line adjusts its characteristics (increasing speed and distance) to reduce overtaking time. This dynamic behavior allows the system to maintain stability while addressing overtaking inefficiencies.
Solution Approach 2:
The system proactively detects overtaking requirements and prepares the platoon line by adjusting speed and distance parameters before the overtaking maneuver begins. This preliminary action reduces the overall overtaking time by having the platoon line ready to facilitate the maneuver, rather than reacting passively to the overtaking situation.
3Device complexity
If platooning proceeds without cooperation between platoons during overtaking, then system complexity is reduced, but the time to overtake is excessively long
Solution Approach 1:
The system implements feedback mechanisms where the processor monitors the positions, speeds, and intentions of multiple platoons. Based on this feedback, the system automatically adjusts the platoon line's speed and distance parameters to optimize overtaking. This feedback-based cooperation between platoons reduces overtaking time while maintaining manageable system complexity through automated control logic.
Solution Approach 2:
The platoon line autonomously manages its own overtaking maneuvers by detecting the need for overtaking and automatically adjusting its parameters. The processor within the platoon line system performs the coordination and adjustment without requiring complex external control, enabling the system to serve itself in optimizing overtaking efficiency while keeping the overall system complexity reasonable.
Data Source
AI summary
An apparatus for controlling platooning of a vehicle includes a processor configured to share platoon line information between platooning groups, determine whether it is necessary to overtake a forward platooning group, calculate an expected time taken to overtake, and adjust and share vehicle speeds of the forward platooning group to be overtaken and a platooning group to overtake, based on the expected time taken to overtake and a storage storing the platoon line information.