Variable Shutter Rear Spoiler for Vehicle Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Rear spoilers with openings compromise vehicle stability at high speeds due to lift phenomena and fail to maintain a sense of openness and cleanliness of the rear glass at low speeds.
Innovation Solution
A rear spoiler system with a variable shutter mechanism, actuated by motors, adjusts the opening amount and position based on vehicle speed, closing fully at high speeds to prevent lift and partially opening at low speeds to maintain openness and clean the rear glass.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the rear spoiler has an opening to maximize sense of openness, then the aesthetic design and sense of openness are improved, but vehicle stability deteriorates at high speeds due to lift phenomenon
Solution Approach 1:
The patent applies the dynamics principle by making the rear spoiler opening adjustable rather than fixed. The variable shutter mechanism allows the opening to dynamically change its area based on driving conditions, transitioning from a large opening at low speeds to a closed or small opening at high speeds, thus adapting the spoiler's aerodynamic characteristics to match vehicle stability requirements.
Solution Approach 2:
The patent implements parameter changes by varying the opening area of the rear spoiler based on vehicle speed. The controller adjusts the shutter position to change the opening area parameter, ensuring maximum openness at low speeds and minimum openness at high speeds to prevent lift and maintain stability.
2Stability of the object's composition
If the rear spoiler opening is closed to improve vehicle stability at high speeds, then vehicle stability is improved, but the sense of openness and rear glass cleanliness deteriorate at low speeds
Solution Approach 1:
The system dynamically adjusts the spoiler opening based on real-time speed detection. At low speeds, the opening remains large to maintain aesthetics and cleanliness. At high speeds, the shutter closes the opening to prevent lift, thus dynamically adapting the design to meet different operational requirements.
Solution Approach 2:
The opening area parameter is changed based on vehicle speed. The controller modifies the shutter position to adjust the opening area, ensuring it is large at low speeds for aesthetic purposes and small or closed at high speeds for stability, thereby resolving the contradiction between these two requirements.
3Ease of manufacture
If the rear spoiler opening is kept open to clean the rear glass, then the rear glass remains clean, but vehicle stability deteriorates at high speeds
Solution Approach 1:
The system uses a variable shutter mechanism that dynamically changes the opening area based on vehicle speed. At low speeds, the opening remains large to allow air flow that cleans the rear glass. At high speeds, the shutter closes the opening to prevent lift and maintain stability, thus adapting the cleaning function to match safety requirements.
Solution Approach 2:
The opening area parameter is adjusted based on vehicle speed to balance cleaning effectiveness with stability. The controller modifies the shutter position to optimize the opening area for glass cleaning at low speeds and minimizes it at high speeds to prevent lift, resolving the contradiction between these functions.
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 system enhances vehicle stability at high speeds by minimizing lift and maintains a clean, open design at low speeds by controlling air flow and removing contaminants effectively without the need for additional wipers.
Implementation Method 1
controlling flow of air based on a driving speed of the vehicle
Implementation Method 2
an actuator operating the variable shutter
Implementation Method 3
the rear glass is cleaned by air passing through the opening
Data Source
AI summary
A rear spoiler system includes a roof portion forming an upper frame of a vehicle body, a rear spoiler positioned at the rear of the vehicle body, connected to the roof portion and including an opening through which air passes, a variable shutter positioned at the rear spoiler to adjust the opening amount and opening position of the opening, and an actuator operating the variable shutter.