Vehicle Rear Spoiler Segmentation for Aerodynamic and Design Trade-offs

Solution Overview

Problem

Existing rear spoilers on vehicles compromise aerodynamic performance when positioned to achieve a fine view of vertically partitioned rear lamps, as they are often lowered, failing to secure both design flexibility and aerodynamic efficiency.

Innovation Solution

A rear spoiler design that includes an outer part vertically partitioning the rear lamp and a central part with an upper surface extending beyond the lamp, coupled with a driving support mechanism to adjust between descending and ascending postures, ensuring aerodynamic performance while maintaining design flexibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the rear spoiler is lowered to vertically partition the rear lamp for design purposes, then design flexibility and fine view are improved, but aerodynamic performance deteriorates

Engineering Contradiction:

Improvedesign flexibilityVSAvoidaerodynamic performance

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The rear spoiler is divided into three distinct segments: a left outer part, a central part, and a right outer part. The outer parts are positioned to vertically partition the rear lamps for design purposes, while the central part extends higher to maintain aerodynamic performance. This segmentation allows different portions of the spoiler to fulfill different functions simultaneously.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different portions of the rear spoiler have different heights and functions. The outer parts are lowered to partition the rear lamps vertically, while the central part maintains a higher position to ensure proper aerodynamic flow. This local differentiation of quality (height) allows the spoiler to achieve both design goals and aerodynamic performance.

Inventive Principle:

Principle #3Local quality

2Adaptability or versatility

If the entire rear spoiler is lowered to achieve vertical partitioning of rear lamp, then design flexibility is improved, but aerodynamic performance deteriorates

Engineering Contradiction:

Improvedesign flexibilityVSAvoidaerodynamic performance

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The rear spoiler is divided into three distinct segments: a left outer part, a central part, and a right outer part. The outer parts are positioned to vertically partition the rear lamps for design purposes, while the central part extends higher to maintain aerodynamic performance. This segmentation allows different portions of the spoiler to fulfill different functions simultaneously.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different portions of the rear spoiler have different heights and functions. The outer parts are lowered to partition the rear lamps vertically, while the central part maintains a higher position to ensure proper aerodynamic flow. This local differentiation of quality (height) allows the spoiler to achieve both design goals and aerodynamic performance.

Inventive Principle:

Principle #3Local quality

3Object-affected harmful factors

If the rear spoiler is positioned to extend beyond the rear lamp upward, then aerodynamic performance is improved, but design flexibility to vertically partition rear lamp deteriorates

Engineering Contradiction:

Improveaerodynamic performanceVSAvoiddesign flexibility

Core Design Contradiction:

Object-affected harmful factorsVSAdaptability or versatility

Solution Approach 1:

The rear spoiler is divided into three distinct segments: a left outer part, a central part, and a right outer part. The outer parts are positioned to vertically partition the rear lamps for design purposes, while the central part extends higher to maintain aerodynamic performance. This segmentation allows different portions of the spoiler to fulfill different functions simultaneously.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different portions of the rear spoiler have different heights and functions. The outer parts are lowered to partition the rear lamps vertically, while the central part maintains a higher position to ensure proper aerodynamic flow. This local differentiation of quality (height) allows the spoiler to achieve both design goals and aerodynamic performance.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS10179614B2Rear structure of vehicle

Publication Date: 2019.01.15 MAZDA MOTOR CORP

AI summary

A rear structure of a vehicle includes: a rear lamp (6) provided at rear (1R) of the vehicle; and a rectifying member (3) extending from a center in a vehicle width direction to an outer side in a right and left direction. The rectifying member (3) includes an outer part (32) positioned on an outside in the vehicle width direction and a central part (31) positioned on the center in the vehicle width direction. The outer part (32) partitions the rear lamp (6) in a vertical direction of the vehicle, and an upper surface of the central part (31) extends further toward an upper side of the vehicle than the rear lamp (6) in the vehicle width direction.