Vehicle Ionizing Material for Airflow Separation Control
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Solution Overview
Problem
Existing vehicle surface treatments, such as silicon rubber sheets and conductive non-woven fabrics, cause disfigurement and electrostatic charging, leading to airflow separation and degraded aerodynamic characteristics, which negatively impact driving performance.
Innovation Solution
Integration of a negatively charged ionizing material at separation points on the vehicle body, formed to be longer than wide, which can be mixed with coating materials or integrated with inner panels, to reduce the positive potential and repulsive force between positively charged airflow and the vehicle surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a silicon rubber sheet having an uneven surface is attached to the vehicle body surface to prevent airflow separation, then airflow separation is reduced, but the vehicle appearance is disfigured and electrostatic charging occurs leading to renewed airflow separation
Solution Approach 1:
The patent applies ionizing materials specifically at separation points rather than covering the entire vehicle surface. This localized approach maintains the vehicle's aesthetic appearance while effectively preventing airflow separation only where it occurs, resolving the contradiction between appearance and airflow control.
Solution Approach 2:
Ionizing materials are introduced as an intermediary substance at separation points to neutralize static electricity. This mediator prevents the repulsive force between charged airflow and charged surface, allowing airflow to remain attached without requiring physical surface modifications that would disfigure the vehicle.
2Reliability
If conductive non-woven fabric is attached entirely to the vehicle surface to prevent airflow separation, then airflow attachment is improved, but air cannot be separated from desired sites and aerodynamic characteristics are degraded
Solution Approach 1:
The patent applies ionizing materials only at specific separation points rather than covering the entire vehicle surface. This selective localization allows airflow to be controlled precisely where separation occurs while maintaining natural airflow patterns and aerodynamic characteristics in other regions.
Solution Approach 2:
Instead of applying anti-static treatment to the entire vehicle surface (excessive action), the patent applies ionizing materials only at the specific separation points where airflow detachment occurs (partial action). This precise application maintains aerodynamic efficiency while achieving the desired airflow control.
3Reliability
If ionizing material is integrated with the separation point or inner panel, then airflow separation is prevented and aerodynamic characteristics are improved, but the device complexity increases
Solution Approach 1:
The ionizing material is integrated directly with existing vehicle components such as separation points or inner panels. This merging approach combines the anti-static function with structural elements already present on the vehicle, avoiding the need for separate complex systems and reducing overall device complexity.
Solution Approach 2:
The ionizing material serves multiple functions: it prevents static electricity accumulation, controls airflow separation, and can be integrated with structural components. This multi-functionality reduces the need for additional dedicated systems, thereby minimizing device complexity while achieving reliable airflow attachment.
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
Prevents airflow separation from the vehicle surface, ensuring desired aerodynamic characteristics and improved traveling stability by attracting airflow back to the surface, thus enhancing driving performance without altering the vehicle's appearance.
Implementation Method 1
positive static charges accumulate on a vehicle body insulated from a road surface
Implementation Method 2
an ionizing material that is charged negatively during propulsion to decrease the positive potential of a separation point
Data Source
AI summary
A vehicle is provided in which separation of positively charged airflow from a positively charged surface of a vehicle body can be prevented. A vehicle body is insulated from a road surface, and positive static charges accumulate on the vehicle body during propulsion. The vehicle comprises an ionizing material that is charged negatively during propulsion to decrease the positive potential of a separation point at which positively charged airflow flowing along a vehicle surface deviates therefrom during propulsion.