Vehicle Platooning Control for Crosswind-Aware Lateral Spacing
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Solution Overview
Problem
Existing platooning systems for heavy goods vehicles face reduced fuel efficiency due to adverse wind conditions, particularly crosswinds, which negatively impact aerodynamic benefits and fuel economy.
Innovation Solution
The system acquires wind data using sensors and wind gauges, processing this information to adjust the transverse movement of vehicles within the convoy to minimize aerodynamic drag, thereby optimizing fuel consumption by controlling both longitudinal and transverse distances between vehicles based on wind direction and intensity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If vehicles drive in platooning mode to reduce aerodynamic drag, then fuel consumption decreases by 10-20%, but crosswind conditions reduce the aerodynamic advantages and fuel economy
Solution Approach 1:
The system dynamically adjusts the transverse position of follower vehicles based on real-time wind conditions. The electronic control unit modifies the lateral distance between vehicles in response to detected crosswinds, transforming the static platooning formation into a dynamic one that adapts to environmental conditions, thereby maintaining aerodynamic efficiency despite wind variations
Solution Approach 2:
The system implements a feedback mechanism where wind sensors continuously detect crosswind conditions and provide data to the electronic control unit. The control unit then adjusts the transverse positioning of vehicles based on this feedback, creating a closed-loop control system that actively compensates for wind-induced aerodynamic penalties and maintains optimal fuel economy
2Reliability
If the transverse distance between vehicles is increased to counteract crosswind effects, then aerodynamic stability improves, but the aerodynamic drag reduction benefit decreases
Solution Approach 1:
The system changes the transverse distance parameter between vehicles based on wind conditions. During crosswinds, the electronic control unit increases the lateral separation to improve aerodynamic stability and prevent excessive sway, while in calm conditions, it reduces the separation to maximize drag reduction benefits, thus dynamically optimizing the parameter to balance stability and fuel economy
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach effectively reduces aerodynamic drag and enhances fuel efficiency by dynamically adjusting vehicle positions in response to wind conditions, leading to improved fuel savings without requiring modifications to the vehicles.
Implementation Method 1
acquire data relating to the wind currently acting on the convoy of vehicles
Implementation Method 2
calculate, known speeds and relative positions of the follower vehicles, control parameters of the vehicles themselves in order to decrease aerodynamic drag by taking advantage of the wake of the vehicles that are in line one after the other
Data Source
Figure 1~2
AI summary
A vehicle (2) for driving on a road (3) comprising an electronic control unit provided with processing means configured to enable driving the vehicle (2) in platooning mode with respect to at least one further vehicle (2) in a convoy (1) of vehicles in platooning mode, the driving in platooning mode comprising the control of a longitudinal distance along an axis (A) of the vehicles (2) in line one after the other, this electronic control unit being configured to acquire data relative to the intensity and direction of the wind with respect to the axis (A) and being configured to consequently calculate a transverse distance value between the vehicles (2), the transverse distance being the perpendicular distance of a vehicle (2) with respect to the axis (A).