Movable Spoiler Device Aerodynamic Flow Control
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Solution Overview
Problem
Existing spoiler devices fail to adequately improve aerodynamic performance by limiting the movable path of the spoiler body, which restricts the adjustment of airflow and energy efficiency.
Innovation Solution
A spoiler device with a movable mechanism that allows the spoiler body to transition between a storing position and an extending position, where the upper surface portion extends rearward and the bent portion moves further rearward, optimizing airflow direction and reducing air resistance by adjusting the separation point of airflow from the vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the spoiler body is made movable to adjust aerodynamic performance, then the aerodynamic performance can be improved, but the device complexity increases due to the movable mechanism
Solution Approach 1:
The spoiler body is designed to be movable rather than fixed, allowing it to transition between a storing position (flush with vehicle body) and an extending position (extended rearward). This dynamic capability enables aerodynamic performance adjustment while the patent manages the complexity through a relatively simple movable mechanism consisting of linkages and actuators.
2Loss of energy
If the movable path of the spoiler body is extended to further improve aerodynamic performance, then the energy efficiency improves, but the device complexity and difficulty of control increase
Solution Approach 1:
The spoiler body's movable path is designed to move along an imaginary line extending along the upper surface of the vehicle body component, rather than simple vertical or horizontal movement. This dimensional approach allows the front end to extend rearward while maintaining proper aerodynamic positioning, improving energy efficiency without excessively complicating the mechanism.
3Reliability
If the spoiler body extends rearward to optimize airflow separation point, then aerodynamic performance improves, but the risk of obstructing airflow or affecting vehicle appearance increases
Solution Approach 1:
The spoiler body can dynamically transition between a storing position where it is flush with the vehicle body component (minimizing airflow obstruction and maintaining appearance) and an extending position where it extends rearward to optimize the airflow separation point. This dynamic positioning resolves the contradiction between aerodynamic performance and airflow obstruction.
Solution Approach 2:
The spoiler body features a specific geometric configuration with an upper surface portion and a bent portion bent downward from the rear end. This local geometric quality allows the spoiler to effectively control airflow separation while extending rearward, optimizing aerodynamic performance without excessive obstruction.
Data Source
AI summary
A spoiler device is adapted to be installed on a rear edge of a vehicle body component arranged on a vehicle and includes a spoiler body having an upper surface portion and a bent portion bent downward from a rear end of the upper surface portion and a movable mechanism connected to the spoiler body to drive the spoiler body to move relative to the vehicle body component. The spoiler body is movable between a storing position where a front end of the upper surface portion is close to an upper surface of the vehicle body component and an extending position where the upper surface portion extends rearward relative to the vehicle body component via the movable mechanism. Taking an imaginary line extending along the upper surface as a reference, the front end in the extending position is located on or further downward than the imaginary line.