Movable Air Guide Device for Vehicle Aerodynamics
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Solution Overview
Problem
Existing air guide devices for motor vehicles increase air resistance and reduce downforce at low speeds, making them inefficient for various operating conditions.
Innovation Solution
An air guide device with a movable air guide element and guide element on a wing top surface, designed to adjust positions to minimize air resistance and maximize downforce, featuring a U-shaped air guide element and rotatable guide elements for optimized flow guidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the rear wing is deployed to effect adequate downforce, then downforce is improved, but the coefficient of air resistance increases
Solution Approach 1:
The air guide element is divided into multiple segments that can be independently adjusted. The air guide device includes a first air guide element and a second air guide element that can be positioned at different angles and locations, allowing the system to generate downforce only where and when needed, rather than deploying a complete rear wing structure that increases air resistance across the entire vehicle.
Solution Approach 2:
The air guide elements are designed to be dynamically adjustable during vehicle operation. The adjusting device enables real-time repositioning of the air guide elements between a stowed position (flush with the motor vehicle body) and various deployed positions, allowing the system to adapt to different driving conditions and minimize air resistance when full downforce is not required.
2Object-generated harmful factors
If the rear wing is kept retracted to minimize air resistance, then coefficient of air resistance is improved, but downforce is reduced
Solution Approach 1:
Instead of using a single large rear wing that must be fully deployed to provide adequate downforce, the system segments the air guide function into multiple smaller elements. These segmented elements can be selectively activated and positioned to provide the necessary downforce while maintaining a more aerodynamic profile when not in use.
Solution Approach 2:
The system changes the parameters of the air guide elements (position, angle, deployment extent) based on driving conditions. The adjusting device enables continuous variation of these parameters, allowing optimization of the balance between air resistance and downforce generation for different speed ranges and operating conditions.
3Adaptability or versatility
If the air guide element is made adjustable to optimize performance at various speeds, then adaptability is improved, but device complexity increases
Solution Approach 1:
The adjusting device serves multiple functions: it positions the air guide elements in the stowed position, deploys them to various angles, and maintains them in intermediate positions. This multi-functional adjusting mechanism reduces the need for separate systems for each function, thereby limiting the increase in overall device complexity while achieving adaptability across various operating conditions.
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 device achieves reduced air resistance and increased downforce across multiple operating points, improving vehicle stability and reducing fuel consumption, while allowing for efficient deployment only when needed.
Implementation Method 1
an air guide element (4), which is received, so as to be movable with the aid of an adjusting device (5), in the motor vehicle body (1), and which is movable into at least a first position and a second position
Data Source
AI summary
An air guide device for a motor vehicle body of a motor vehicle. The motor vehicle body has a longitudinal axis, a transverse axis, and a vertical axis. The air guide device includes: an air guide element, which is received in the motor vehicle body so as to be movable with the aid of an adjusting device, and which is movable into at least a first position and a second position. In order to effect a reduced coefficient of air resistance and an increased downforce, the air guide element has a guide element, which is configured to be movable and which is received movably on a wing top surface of the air guide element.