Active Wing Apparatus Anchor Means for Boot Lid Stress Reduction
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Solution Overview
Problem
Retractable wings in motor vehicles face packaging constraints, particularly in high-performance vehicles, leading to excessive stress on boot lid components due to the transmission of aerodynamic forces.
Innovation Solution
A motor vehicle active wing apparatus with a deployment actuator that transitions between retracted and deployed conditions, using anchor means to couple directly to the vehicle's structural members, reducing stress on the boot lid by transmitting forces directly to the vehicle body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the wing assembly is made retractable to improve packaging, then packaging constraints are improved, but stress loading on boot lid components increases
Solution Approach 1:
The patent extracts the force transmission path from the boot lid by introducing anchor means that couple the wing assembly directly to the vehicle body structure. This separates the packaging function (boot lid) from the force-bearing function (vehicle body), allowing the boot lid to accommodate the retracted wing without bearing excessive stress.
2Force
If the wing assembly is fixed to generate maximum down force, then aerodynamic performance is improved, but packaging constraints worsen
Solution Approach 1:
The patent makes the wing assembly dynamic by enabling it to switch between retracted and deployed conditions. When retracted, the wing minimizes packaging space within the boot lid. When deployed, the wing generates maximum aerodynamic down force, with forces transmitted directly to the vehicle body through anchor means.
3Ease of operation
If the wing assembly is made deployable to enhance handling, then handling characteristics are improved, but device complexity increases
Solution Approach 1:
The patent introduces anchor means as an intermediary component that simplifies the deployment mechanism. The anchor means provide a direct coupling point between the wing assembly and vehicle body, eliminating the need for complex force transmission paths through the boot lid and its mounting components.
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
This solution reduces stress loading on boot lid components, enhances handling characteristics, and increases the rigidity of the wing assembly's support, thereby improving vehicle performance without compromising packaging constraints.
Implementation Method 1
the wing assembly is raised relative to the retracted condition to increase an amount of aerodynamic force generated by forward movement of the vehicle
Data Source
AI summary
An active wing apparatus (100) configured to be attached to a boot lid of a motor vehicle, the apparatus (100) comprising a wing assembly (120) configured to reversibly deploy in a first direction from a stowed condition to a deployed condition, the apparatus (100) further comprising anchor means (113L,113R) configured releasably to couple the apparatus (100) to a structural member being a portion of the vehicle body (50B) other than the boot lid, when the apparatus transitions from the stowed to the deployed condition.