Flush Vehicle Door Handle Assembly Without a Handle Recess

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Solution Overview

Problem

Existing vehicle door handle arrangements are complex and costly to assemble, requiring significant installation space and often necessitating a conventional handle recess, which can be avoided with a more efficient and cost-effective design.

Innovation Solution

A multifunctional and multisensory handle arrangement featuring self-centering coupling interfaces between sensor modules and structural components, allowing for easy assembly and reduced installation space, with sensor modules automatically connecting for electrical and mechanical functions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional handle arrangements are used, then multiple sensor modules and components can be integrated, but the assembly process becomes complex and costly

Engineering Contradiction:
Improvesensor module integrationVSAvoidassembly process
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The first sensor module is nested within the handle element structure, with the coupling interface integrated into the handle element. The second sensor module is arranged on the door support structure and couples with the first sensor module, creating a nested modular arrangement that simplifies assembly while maintaining multiple sensing functions

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The handle arrangement is segmented into distinct modular components: the handle element containing the first sensor module, and the door support structure containing the second sensor module. Each module has its own coupling interface, allowing independent assembly and reducing overall system complexity

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If conventional handle arrangements are used, then multiple functions can be achieved, but the installation space required increases

Engineering Contradiction:
Improveswitching functionsVSAvoidinstallation space
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

Multiple sensor modules are merged into a compact handle arrangement where the first sensor module is integrated into the handle element and the second sensor module is positioned on the door support structure. The coupling interface merges the electrical and mechanical connections between modules, reducing the overall installation space while maintaining multiple switching functions

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If conventional handle arrangements are used, then sensor modules can be integrated, but the need for a handle recess increases manufacturing costs

Engineering Contradiction:
Improvesensor module integrationVSAvoidmanufacturing cost
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The sensor modules are extracted from the conventional handle recess configuration and repositioned into a flush mounting arrangement. The first sensor module is integrated into the handle element and the second sensor module is positioned on the door support structure, eliminating the need for a separate handle recess and reducing manufacturing complexity and cost

Inventive Principle:
Principle #2Taking out (Extraction)

4Ease of operation

If automatic coupling interfaces are used, then assembly is simplified, but the coupling mechanism becomes more complex

Engineering Contradiction:
Improveassembly easeVSAvoidcoupling mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The coupling interface is designed with self-centering capability, allowing the first and second sensor modules to automatically align and connect during assembly. The complementary coupling interfaces on the handle element and door support structure engage automatically, enabling self-service assembly that simplifies the assembly process while the self-centering mechanism manages the complexity of precise alignment

Inventive Principle:
Principle #25Self-service

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 enables a compact, cost-effective, and easy-to-assemble vehicle door handle system that eliminates the need for a conventional handle recess, achieving a flush design while supporting multiple switching functions with reduced installation requirements.

Implementation Method 1

at least one coupling interface for automatic coupling of the first sensor module with a vehicle-side component, in particular a door support structure, for example a structural section, a shaft strip and/or a support strip, and/or with the handle element and/or optionally with the second sensor module

Methodology Applied
Scientific EffectSelf-centering coupling: Mechanical Fastener

Data Source

PatentEP4279688A1Vehicle door with a handle assembly
Publication Date: 2023.11.22 WITTE AUTOMOTIVE GMBH
  • EP4279688A1 patent drawingFigure 1
  • EP4279688A1 patent drawingFigure 2
  • EP4279688A1 patent drawingFigure 3

AI summary

The invention relates to a vehicle door (1) with a handle assembly (2), wherein the vehicle door (1) comprises at least: - a door support structure (3), and - a channel strip (8) arranged on the upper side of the door support structure (3), wherein the handle assembly (2) comprises at least one handle element (9) and at least one first sensor module (12), wherein the first sensor module (12) can be arranged and fixed externally on an upper surface of the door support structure (3), and wherein the first sensor module (12) comprises at least one coupling interface (15) for automatically coupling the first sensor module (12) with the handle element (9) and/or with an optional second sensor module (13). The invention further relates to a vehicle with such a vehicle door.