Vehicle Self-Discharge Device for Aerodynamic Stability
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Solution Overview
Problem
Existing vehicle designs face issues with positively charged airflow separating from the vehicle surface due to static electricity, leading to degraded aerodynamic characteristics and driving performance.
Innovation Solution
The implementation of conductive sheets or self-discharge devices attached to specific points on the vehicle body to neutralize positive static charges, preventing airflow separation by discharging static electricity and reducing positive potential, thereby improving aerodynamic stability and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a silicon rubber sheet with uneven surface is attached to the vehicle surface, then air current separation is reduced, but the vehicle appearance is disfigured and static electricity accumulates easily
Solution Approach 1:
A conductive sheet is introduced as an intermediary layer between the vehicle body and the airflow. This conductive sheet neutralizes positive static charges through corona discharge, preventing air current separation without affecting the vehicle's external appearance, thus resolving the contradiction between reducing harmful factors and maintaining shape integrity
2Object-affected harmful factors
If ionized air is supplied to the vehicle interior using discharge needles, then air quality is improved, but static electricity accumulates on the vehicle surface causing aerodynamic degradation
Solution Approach 1:
The conductive sheet is selectively applied only to specific regions of the vehicle body where static charge accumulation occurs, rather than treating the entire vehicle uniformly. This localized approach maintains aerodynamic characteristics while still improving air quality through targeted ionization
3Reliability
If the vehicle body is insulated from the road surface, then static charge accumulation is prevented, but aerodynamic performance deteriorates due to repulsive force between positively charged airflow and vehicle surface
Solution Approach 1:
The conductive sheet converts the harmful effect of static electricity into a beneficial one by using corona discharge to neutralize positive charges. The same mechanism that causes static charge accumulation is harnessed to create negative ions that neutralize the positive charges, thereby improving aerodynamic performance while maintaining the insulated structure
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 solution effectively prevents airflow separation, enhancing aerodynamic characteristics, driving stability, and reducing air resistance, without increasing vehicle weight or altering its design, thus improving acceleration, steering, and riding comfort.
Implementation Method 1
the self-discharge device adapted to decrease a positive potential of a specific point at which positively charged airflow flowing along the vehicle surface deviates therefrom during propulsion of the vehicle, by discharging static electricity to produce negative ions according to the positive potential of the specific point
Data Source
Figure 1
Figure 2A~2D
Figure 3
AI summary
A vehicle and a manufacturing method thereof is provided in which separation of positively charged airflow from a positively charged surface of a vehicle body can be prevented. A vehicle body 30 is insulated from a road surface, and positive static charges accumulate on the vehicle body during propulsion. The vehicle comprises a self-discharge device 12, 31 that is adapted to decrease a positive potential of at least any one of specific points at which positively charged airflow flowing along a vehicle surface deviates therefrom, during propulsion of the vehicle, by discharging static electricity to produce negative ions according to the positive potential of the specific point.