Vehicle Air Deflector Dynamics for Aerodynamic and Ground Clearance
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Solution Overview
Problem
Existing air deflector devices for vehicles either have suboptimal aerodynamic performance due to fixed positions or are costly and prone to failures with moveable actuators, and they fail to adapt to varying vehicle demands such as ground clearance at low speeds.
Innovation Solution
An air deflector device with a movable air deflector portion and a locking mechanism that automatically adjusts its position based on vehicle speed, using airflow to switch between open and closed positions, and incorporates a mounting mechanism with a force element like a spring to optimize aerodynamic performance while allowing higher ground clearance at low speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed air deflector is used, then the structure is simple and cost-effective, but the aerodynamic performance is suboptimal and cannot adapt to varying vehicle demands
Solution Approach 1:
The air deflector is designed to be movable rather than fixed, allowing it to dynamically adjust its position between open and closed states. This dynamic capability enables the deflector to adapt to varying vehicle speeds and ground clearance requirements, resolving the contradiction between structural simplicity and aerodynamic adaptability.
Solution Approach 2:
The air deflector system uses airflow forces generated during vehicle operation to automatically move the deflector between positions without requiring external actuators. The airflow itself serves as the actuating mechanism, eliminating the need for complex motorized systems while maintaining adaptability.
2Adaptability or versatility
If moveable actuators are used to adjust the air deflector position, then the aerodynamic performance is optimized, but the cost increases and reliability decreases due to potential actuator failures
Solution Approach 1:
The system eliminates external actuators by using the vehicle's own airflow to drive the air deflector. The airflow generated during normal vehicle operation automatically moves the deflector to the appropriate position, making the system self-actuating and removing the reliability concerns associated with motorized actuators.
Solution Approach 2:
The patent replaces motorized actuator systems with a passive mechanical system that uses aerodynamic forces. This substitution eliminates complex electrical-mechanical components prone to failure while maintaining the ability to adjust the air deflector position for optimal aerodynamic performance.
3Adaptability or versatility
If the air deflector is in closed position for optimal aerodynamics, then the aerodynamic performance is improved, but the ground clearance is reduced at low speeds
Solution Approach 1:
The air deflector transitions from a static to a dynamic component that can change position based on operating conditions. At low speeds, the deflector remains in the open position to maintain ground clearance, while at higher speeds it moves to the closed position for optimal aerodynamics, thus resolving the contradiction between these two requirements.
Solution Approach 2:
The system changes the position parameter of the air deflector based on vehicle speed. The deflector position is not fixed but varies according to the operating regime, allowing the vehicle to optimize ground clearance at low speeds and aerodynamic performance at high speeds.
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 solution enhances aerodynamic performance by automatically adjusting the air deflector's position based on vehicle speed, reducing the need for costly actuators and ensuring optimal airflow management, while maintaining higher ground clearance to avoid obstacles at lower speeds.
Implementation Method 1
the air flow occurring due to a movement of the vehicle is pushing the air deflector portion from its opened position in its closed position
Implementation Method 2
a force element configured to apply a force pushing the locking mechanism in its unlocked position
Data Source
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AI summary
Air deflector device for a vehicle, comprising: an air deflector portion (12) configured to deflect an air flow occurring due to a movement of the vehicle (30), whereby the air deflector portion (12) is further configured to be moved between a closed position and an opened position, whereby the air flow occurring due to a movement of the vehicle (30) is pushing the air deflector portion (12) from its opened position in its closed position; a locking mechanism (20) configured to be moved between an unlocked position and a locked position; and/or a mounting mechanism (16) comprising a force element configured to apply a force pushing the air deflector portion (12) from its opened position in its closed position; and an actuation mechanism (14) configured to push the air deflector portion (12) from its closed position in its opened position.