Wing-Mounted V2V Antenna System for Platooning Latency Reduction
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Solution Overview
Problem
Current Advanced Driver Assistance Systems (ADAS) for platooning, which rely on on-board sensors like cameras and radars, suffer from latency issues that limit the minimization of vehicle following distance, thereby reducing the benefits of fuel economy, road use efficiency, and traffic safety.
Innovation Solution
A wireless vehicle-to-vehicle communication system with antennas mounted on a wing assembly at optimized heights and positions on the vehicle's front side, designed to minimize interference, reduce air resistance, and enhance signal diversity and coverage, allowing for effective communication between platooning vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If on-board sensor systems (cameras and radars) are used for platooning, then vehicle following control can be achieved, but latency times of 200-500 ms occur which limit minimization of vehicle following distance
Solution Approach 1:
The patent introduces V2V communication as an intermediary system that directly transmits control signals between vehicles, bypassing the need for sensor-based detection and processing. This mediator approach reduces latency by establishing a direct communication channel for platoon control, eliminating the 200-500ms delay inherent in sensor systems.
2Reliability
If V2V communication antennas are mounted on the vehicle, then wireless communication quality improves, but antenna interference and signal diversity issues arise when antennas are placed too close together
Solution Approach 1:
The patent positions antennas on the wing assembly, utilizing the vertical and lateral dimensions provided by the wing structure. This spatial arrangement in multiple dimensions separates antennas from potential interference sources and provides adequate spacing while maintaining compact vehicle integration.
Solution Approach 2:
The wing assembly provides a localized mounting structure with specific electromagnetic properties that are optimized for antenna placement. The wing's geometry and material characteristics create a favorable local environment that enhances signal diversity and reduces interference between adjacent antennas.
3Device complexity
If antennas are placed closer to the vehicle body, then integration is improved, but interference from electronic sources such as digital cameras increases
Solution Approach 1:
The patent extracts the antennas from the main vehicle body and relocates them to the wing assembly. This separation removes the antennas from the interference-prone environment near electronic sources like digital cameras, while the wing assembly serves as an isolated mounting platform that maintains integration without proximity to interference sources.
4Reliability
If wing assembly size is increased to accommodate antennas, then communication performance improves, but air resistance increases
Solution Approach 1:
The wing assembly serves multiple functions: it provides structural support for the vehicle, enables aerodynamic control, and acts as a mounting platform for communication antennas. This multi-functionality allows the same structure to improve communication performance without requiring additional components that would increase air resistance.
Data Source
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Figure 3A~3B
AI summary
It is aimed to provide a wireless vehicle to vehicle communication system arranged for mounting on a vehicle's front side location, equipped to provide inter vehicle communication. The system comprises a wing assembly arranged for mounting on the vehicles front side location. The wing assembly houses one or more digital communications antennas and has a side portion that houses a first antenna at a first height and/or horizontal position, and a second antenna at a second height and/or horizontal position, different from the first height and/or first horizontal position and sufficiently away from the other metallic and/or electronic components, for the purpose of optimizing reception and/or transmission quality, by e.g. providing good coverage and diversity, and avoiding interference with each other.