Variable Rear Spoiler Linkage Mechanism for Vehicle Aerodynamics
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Solution Overview
Problem
Existing rear spoilers for vehicles restrict design freedom and are difficult to modify for improved aerodynamic performance, particularly in luxury vehicles, as they are installed permanently and do not effectively enhance driving stability at high speeds.
Innovation Solution
A variable rear spoiler apparatus with a linkage mechanism, first driving mechanism, and second driving mechanism that allows the spoiler to move up and down and tilt, integrating motors and linkages to adjust its position and angle for optimal airflow regulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an air spoiler is installed at the rear of the vehicle to improve aerodynamic performance, then driving stability and grip force are improved, but design freedom and aesthetic appearance are restricted
Solution Approach 1:
The air spoiler is designed to be movable rather than fixed, allowing it to change position between a retracted state (for aesthetic purposes) and an extended state (for aerodynamic performance). This dynamic capability resolves the contradiction by enabling the system to adapt its configuration based on operational requirements.
Solution Approach 2:
The air spoiler is divided into multiple segments that can move independently or collectively, allowing for flexible positioning and design variations. This segmentation enables both aesthetic flexibility when retracted and aerodynamic effectiveness when extended, addressing both design freedom and driving stability requirements.
2Reliability
If an air spoiler is permanently installed to regulate airflow, then aerodynamic performance is improved, but the ability to modify design or specifications is lost
Solution Approach 1:
The air spoiler employs a movable structure that can transition between retracted and extended positions, allowing the design to be modified or adjusted based on different aerodynamic requirements or aesthetic preferences without permanent installation constraints.
Solution Approach 2:
The air spoiler system serves multiple functions: it can be retracted for aesthetic purposes, extended for aerodynamic performance, and potentially adjusted to different configurations. This multi-functionality allows the same structure to adapt to various design specifications and performance requirements.
3Reliability
If the spoiler structure is made complex to achieve better airflow regulation, then aerodynamic performance is improved, but device complexity increases
Solution Approach 1:
The air spoiler is divided into multiple segments that can move independently, allowing complex airflow regulation to be achieved through simple individual segment movements rather than a complex overall structure. Each segment can be controlled separately to optimize airflow while maintaining structural simplicity.
Solution Approach 2:
The air spoiler utilizes vertical movement (raising and lowering) to achieve airflow regulation instead of complex horizontal or rotational mechanisms. By changing the position in the vertical dimension, the system achieves aerodynamic performance with a relatively simple up-down movement mechanism.
Data Source
AI summary
Disclosed herein is a variable rear spoiler apparatus of a rear bumper for a vehicle. The variable rear spoiler apparatus includes a linkage mechanism configured to be installed on a bumper back beam and having a length varying in a vertical direction when the linkage mechanism undergoes a rotation. A spoiler is connected to the linkage mechanism and is able to move up and down by the rotation of the linkage mechanism. A first driving mechanism, installed at the bumper back beam, is provided with a first rotation shaft connected to the linkage mechanism to transfer a torque. The spoiler is moved up and down by the rotation of the linkage mechanism by a rotation of the first rotation shaft. A second driving mechanism is connected to the first rotation shaft. The spoiler is tilted by a length varying operation of the second driving mechanism.