Variable Spoiler Apparatus for Vehicle Rear Bumper
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Solution Overview
Problem
Existing rear bumper air spoilers lack design flexibility and are limited in enhancing aerodynamic performance and driving stability, as they are typically fixed and cannot be easily adjusted to improve grip force and fuel efficiency.
Innovation Solution
A variable spoiler apparatus housed in the rear bumper that can be extracted downward and tilted using a linkage device and drive mechanisms, allowing for control of air flow and adjustment of spoiler position to enhance aerodynamic performance and driving stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed air spoiler is installed on the rear end of the vehicle, then the aerodynamic performance and driving stability are improved, but the design flexibility is limited and the design quality may deteriorate
Solution Approach 1:
The patent applies the dynamics principle by making the spoiler movable rather than fixed. The linkage device enables the spoiler to rotate between a retracted position (flush with bumper) and an extended downward position, allowing the system to adapt between different states (aerodynamic performance vs. design appearance) based on driving conditions
Solution Approach 2:
The spoiler is divided into a movable portion and a fixed portion. The movable portion can rotate independently from the fixed portion that remains attached to the bumper, allowing selective deployment of only the aerodynamic component while maintaining the aesthetic appearance of the fixed portion
2Reliability
If the air spoiler is extracted downward to control air flow, then the grip force and aerodynamic performance are enhanced, but the device complexity increases
Solution Approach 1:
The linkage device merges multiple functions into a single mechanism: it provides rotational movement to extract the spoiler downward, maintains the spoiler in the extended position during operation, and enables retraction back to the bumper. This integration reduces the need for multiple separate actuators and control systems
Solution Approach 2:
The linkage device is designed to be operable by the driver through the steering wheel or dashboard controls, allowing the driver to directly control the spoiler deployment without requiring complex automated sensor systems or electronic control units
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
The variable spoiler apparatus improves driving stability and aerodynamic performance by allowing for dynamic control of air flow, enabling adjustments based on vehicle speed and turning conditions without compromising design quality.
Implementation Method 1
a linkage device installed on a bumper back beam and configured to vary in length in an up-down direction during a rotating operation
Implementation Method 2
a first drive device installed on the bumper back beam and provided with a first rotating shaft coupled to the linkage device to transmit rotating force
Implementation Method 3
a second drive device, to which the second rotating shaft is penetrated and connected so that, when the linkage device is rotated, the second drive device is moved in the up-down direction, the second drive device being provided with a length-variable unit coupled to an end of the spoiler so that, when the second drive device is operated, the spoiler is tilted by a length variation operation of the length-variable unit
Implementation Method 4
The air spoiler changes the flow of air passing around a vehicle so that the pressure of pushing the vehicle can be generated by the flow of air around the air spoiler, thus increasing the grip force of the rear wheel tires
Data Source
AI summary
Disclosed is a variable spoiler apparatus of the rear bumper for vehicles. The variable spoiler apparatus includes a linkage device, to be installed on a bumper back beam, which is able to vary in length in an up-down direction during a rotating operation. A spoiler is coupled to the linkage device and is able to move in the up-down direction by the rotation operation of the linkage device. A first drive device, to be installed on the bumper back beam, includes a first rotating shaft coupled to the linkage device to transmit a rotating force. When the first drive device is operated, the linkage device is rotated by a rotation of the first rotating shaft so that the spoiler is moved in the up-down direction. A second rotating shaft is rotatably coupled to the linkage device. The second rotating shaft is penetrated and connected to a second drive device.