Vehicle Door Handle Assembly With Self-Centering Sensor Coupling

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Solution Overview

Problem

Existing vehicle door handle assemblies are complex to assemble and require significant installation space, making them costly and inefficient.

Innovation Solution

A modular handle assembly with self-centering coupling interfaces, including a first sensor module and optionally a second sensor module, which can be easily mounted on the door support structure and channel strip, reducing the need for a conventional recessed handle and allowing a flush-mounted design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a conventional recessed handle system is used, then the handle assembly provides robust functionality, but the installation space requirement increases and assembly complexity increases

Engineering Contradiction:

Improvehandle functionalityVSAvoidinstallation space

Core Design Contradiction:

Ease of operationVSArea of stationary object

Solution Approach 1:

The patent combines the handle assembly with the channel strip by integrating the first sensor module directly into the channel strip structure. The coupling interface enables automatic mechanical and electrical connection between the handle element and the channel strip, merging previously separate components into a unified assembly that reduces installation space while maintaining functionality.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The channel strip is designed to serve multiple functions: it acts as both a structural component and a mounting platform for the sensor module, while the coupling interface provides both mechanical attachment and electrical connection. This multi-functionality eliminates the need for separate recessed handle structures, reducing overall installation space.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If a conventional handle assembly with multiple separate components is used, then the assembly provides comprehensive functionality, but the assembly complexity increases and installation cost increases

Engineering Contradiction:

Improvehandle functionalityVSAvoidassembly complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the mechanical coupling and electrical connection functions into a single integrated coupling interface. The self-centering design combines alignment and attachment operations into one automatic process, significantly reducing assembly complexity compared to conventional multi-step procedures involving separate mechanical and electrical connections.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The coupling interface is designed with self-centering capability that automatically aligns and connects the handle element to the channel strip without requiring external alignment tools or manual adjustment. The system performs its own alignment and connection functions, reducing the need for complex assembly procedures and skilled labor.

Inventive Principle:

Principle #25Self-service

3Reliability

If conventional handle systems with separate mechanical and electrical connections are used, then the connection reliability is sufficient, but the assembly time increases and productivity decreases

Engineering Contradiction:

Improveconnection reliabilityVSAvoidassembly speed

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The coupling interface is pre-designed with self-centering features that automatically perform alignment before final connection. The contact elements are pre-positioned to ensure proper electrical connection as soon as mechanical attachment occurs, eliminating the need for separate alignment and connection steps and significantly increasing assembly speed while maintaining reliability.

Inventive Principle:

Principle #10Preliminary action

4Shape

If a flush-mounted design is achieved through conventional methods, then the aesthetic appearance is improved, but the installation cost increases significantly

Engineering Contradiction:

Improveflush-mounted designVSAvoidinstallation cost

Core Design Contradiction:

ShapeVSEase of manufacture

Solution Approach 1:

The patent integrates the sensor module directly into the existing channel strip structure, using the channel strip as both a functional and aesthetic component. This approach achieves the flush-mounted appearance typically associated with expensive custom installations by utilizing standard door structures, significantly reducing installation costs while maintaining the desired aesthetic appearance.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS12509920B2Vehicle door having a handle assembly

Publication Date: 2025.12.30 WITTE AUTOMOTIVE GMBH

AI summary

A vehicle door having a handle arrangement. The vehicle door includes a door support structure and a channel strip that is arranged on the upper side of the door support structure. The handle assembly has at least one handle element and at least one first sensor module, where the first sensor module can be arranged and fixed on the outside on an upper side of the door support structure. The first sensor module has at least one coupling interface for automatically coupling the first sensor module to the handle element and/or to an optional second sensor module.