Vehicle Side Reinforcement Structure for Doorless Power Windows

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Solution Overview

Problem

Existing vehicle body structures face challenges in reinforcing the side portions where a door is not applied, particularly when power or electric windows are integrated, as they lack sufficient structural support and collision resistance.

Innovation Solution

A side reinforcing structure comprising a front pillar, rear pillar, glass run lower inner reinforcement, regulator, and additional reinforcements to enhance the structural integrity and support for power or electric windows in doorless vehicle body designs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a door is not applied to the assistant seat to enable power window or electric window, then occupant convenience is improved, but side structural strength and collision resistance deteriorate

Engineering Contradiction:
Improveoccupant convenienceVSAvoidside structural strength
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The side reinforcing structure is divided into multiple segments including glass run lower inner reinforcement, glass run lower outer reinforcement, glass run upper reinforcement, regulator lower reinforcement, and roof rail side reinforcement. Each segment reinforces specific areas along the side of the vehicle body, distributing the structural support function across multiple components rather than relying on a single door structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The reinforcement structure extends across multiple dimensions by connecting the front pillar to the rear pillar through longitudinal reinforcements (glass run lower inner, glass run lower outer, glass run upper) and by connecting the roof rail side to the pillars. This creates a three-dimensional reinforcement network that compensates for the absence of the door structure.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If power window or electric window is applied to assistant seat without door, then vehicle customization flexibility is improved, but structural integrity and load distribution worsen

Engineering Contradiction:
Improvevehicle customization flexibilityVSAvoidstructural integrity
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The side reinforcing structure serves multiple functions: it provides structural reinforcement for collision resistance, supports the power window or electric window mechanism, connects major body components (front pillar, rear pillar, roof rail side), and maintains structural integrity. This multi-functional design allows the vehicle body to achieve both customization flexibility and structural stability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The invention merges the reinforcement functions of multiple components into an integrated side reinforcing structure. The glass run lower inner reinforcement, glass run lower outer reinforcement, glass run upper reinforcement, and regulator lower reinforcement are combined to form a unified structural system that collectively maintains structural integrity while enabling power window or electric window installation.

Inventive Principle:
Principle #5Merging (Combining)

3Force

If multiple reinforcements are added to side portion, then collision resistance and load distribution are improved, but device complexity and manufacturing difficulty worsen

Engineering Contradiction:
Improvecollision resistanceVSAvoiddevice complexity
Core Design Contradiction:
ForceVSDevice complexity

Solution Approach 1:

The side reinforcing structure is segmented into distinct components (glass run lower inner reinforcement, glass run lower outer reinforcement, glass run upper reinforcement, regulator lower reinforcement, roof rail side reinforcement) that can be manufactured separately and then assembled. This segmentation reduces manufacturing complexity while achieving the required collision resistance through the collective action of all segments.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The reinforcement system utilizes three-dimensional spatial arrangement by positioning reinforcements at different locations (lower inner, lower outer, upper) and orientations (longitudinal connections between pillars, lateral connection to roof rail side). This multi-dimensional configuration achieves comprehensive collision resistance while allowing each component to be relatively simple in design.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS12594997B2Side reinforcing structure of vehicle body
Publication Date: 2026.04.07 HYUNDAI MOTOR CO LTD
  • US12594997B2 patent drawing
  • US12594997B2 patent drawing
  • US12594997B2 patent drawing

AI summary

An embodiment side reinforcing structure includes a front pillar, a rear pillar, and a glass run lower inner reinforcement connecting the front pillar and the rear pillar. An embodiment vehicle includes a vehicle body including a front pillar and a rear pillar, a glass run lower inner reinforcement extending along a length direction of the vehicle body and connecting the front pillar and the rear pillar, a glass mounted on a side of the vehicle body between the front pillar and the rear pillar and above the glass run lower inner reinforcement, and a regulator extending in a vehicle height direction and comprising an upper mounting portion and a lower mounting portion, wherein the regulator is connected to the glass run lower inner reinforcement through the upper mounting portion, and wherein the regulator is configured to move the glass vertically.