Dual Rear Spoiler Layout for Adjustable Length and Tilt

Solution Overview

Problem

Existing air spoilers for vehicles are limited in design flexibility and installation space, particularly on high-end vehicles and SUVs, which restricts their ability to improve aerodynamic performance beyond basic fuel efficiency and stability enhancements.

Innovation Solution

A dual spoiler apparatus that allows for adjustable tilting angle and length of the air spoiler, utilizing a first spoiler device that slides and a second spoiler device that tilts, both connected to a driving device that controls their positions, thereby optimizing air flow control at the rear of the vehicle.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a traditional air spoiler is installed at the rear of the vehicle, then aerodynamic performance is improved, but design freedom is restricted and installation space requirements increase

Engineering Contradiction:

Improveaerodynamic performanceVSAvoiddesign freedom

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent applies the dynamics principle by making the spoiler movable rather than fixed. The first spoiler device slides forward and backward, while the second spoiler device tilts upward and downward, allowing the spoiler to dynamically adjust its position and angle. This dynamic capability maintains aerodynamic performance while enabling flexible design variations and reducing installation space requirements.

Inventive Principle:

Principle #15Dynamics

2Reliability

If the specifications of the air spoiler are changed to improve aerodynamic performance, then fuel efficiency and driving stability are enhanced, but installation space requirements increase

Engineering Contradiction:

Improveaerodynamic performanceVSAvoidinstallation space

Core Design Contradiction:

ReliabilityVSArea of stationary object

Solution Approach 1:

The patent applies the nesting principle by allowing the spoiler to collapse or retract into a compact form when not in use. The movable design enables the spoiler to be nested within a smaller space envelope, reducing the installation space requirements while maintaining full aerodynamic functionality when deployed.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Reliability

If a fixed air spoiler is used, then aerodynamic performance is improved, but design changes become difficult after installation

Engineering Contradiction:

Improveaerodynamic performanceVSAvoiddesign flexibility

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent applies the dynamics principle by making the spoiler movable rather than fixed. The first spoiler device slides forward and backward, while the second spoiler device tilts upward and downward, allowing the spoiler to dynamically adjust its position and angle. This dynamic capability maintains aerodynamic performance while enabling flexible design variations and reducing installation space requirements.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS20250121894A1Dual spoiler apparatus

Publication Date: 2025.04.17 HYUNDAI MOTOR CO LTD

AI summary

A dual spoiler apparatus changes a tilting angle and a length of an air spoiler to control the air flow to the rear of a vehicle, so as to improve aerodynamic performance and simplify parts for tilting and length change. The dual spoiler apparatus includes: a first spoiler device configured to slide on a spoiler mounting portion in a first direction; a second spoiler device configured to tilt on the spoiler mounting portion in a second direction; and a driving device configured to switch a sliding position of the first spoiler device and a tilting position of the second spoiler device.