Front Bumper Embossed Surface for Corner Airflow Adherence
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Solution Overview
Problem
Current vehicle designs struggle to effectively direct airflow around the corner portions of the vehicle body, leading to increased aerodynamic drag and potential strange feelings of instability or reduced responsiveness during steering, especially when embossed surfaces are directional along the front-rear axis.
Innovation Solution
An embossed surface with a directional pattern is formed on the side surface portions of the front bumper member, where the embossed surface is designed to guide airflow in one direction, specifically raised rearward relative to the front-rear direction of the vehicle body, reducing airflow separation and enhancing aerodynamic characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the corner portion is structured with an inclined surface or curved surface, then the airflow can flow generally along the outer surface of the vehicle body, but the airflow may still not follow the outer surface well and may blow out from the corner portion
Solution Approach 1:
The patent applies local quality by forming an embossed surface specifically on the side surface portion of the front bumper member, rather than changing the entire corner portion geometry. This localized surface treatment creates directional patterns that guide airflow adherence at the critical side surface area where airflow separation occurs, without altering the overall corner portion shape design.
Solution Approach 2:
The embossed surface acts as an intermediary element between the smooth outer surface and the airflow. The directional patterns in the embossed surface create micro-structures that interact with the airflow, providing guidance and preventing separation without requiring direct geometric modification of the corner portion itself.
2Loss of energy
If an embossed surface with directional pattern is formed on the side surface portion, then airflow adherence is improved and drag is reduced, but the manufacturing complexity increases
Solution Approach 1:
The patent changes the surface parameters of the front bumper member by forming an embossed pattern with specific directional characteristics. This modifies the surface topology from smooth to structured, creating flow-guiding features that reduce aerodynamic drag while maintaining compatibility with existing manufacturing processes for plastic bumper components.
3Device complexity
If the embossed surface pattern is directed along the front-rear axis, then airflow guidance is simplified, but strange feelings of instability during steering occur
Solution Approach 1:
The patent applies asymmetry by orienting the embossed surface pattern at an angle of 10 to 45 degrees relative to the front-rear direction of the vehicle body. This asymmetric orientation creates a more natural airflow guidance that adapts to steering conditions, preventing the unstable airflow patterns and strange feelings that occur with straight-axis patterning during directional changes.
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 improves airflow adherence to the vehicle's outer surface, reducing drag and minimizing strange feelings related to steering stability and responsiveness, while maintaining consistent airflow patterns during steering and road disturbances.
Implementation Method 1
an embossed surface having a directional pattern for assisting an airflow to direct in one direction along the surface is formed
Data Source
AI summary
A vehicle including an embossed surface for improving aerodynamic characteristics includes a front bumper member provided at a lower portion of a front surface of a vehicle body of the vehicle. On a surface of a side surface portion of the front bumper member, the embossed surface having a directional pattern for assisting an airflow to direct in one direction along the surface is formed. The one direction is raised rearward relative to a front-rear direction of the vehicle body.