Bidirectional Door Opening Module With Detachable Drive Unit

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Solution Overview

Problem

Existing vehicle door systems face challenges in convenience during maintenance and safety, particularly with bidirectional opening structures that require improved rigidity and ease of access, especially in the context of autonomous vehicles where traditional driver seat standards are relaxed.

Innovation Solution

A bidirectional door opening module that includes a drive unit detachably attached to a vehicle body panel, comprising spindle units, gas lift units, rail units, and hinge units, which work together to simultaneously or selectively open two doors located at the front and rear of the vehicle, providing structural rigidity and ease of access.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a bidirectional door opening structure is implemented, then ease of access to vehicle interior is improved, but vehicle body rigidity deteriorates

Engineering Contradiction:
Improveease of accessVSAvoidvehicle body rigidity
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The door opening system is divided into two independent door assemblies (first door and second door) that can operate independently or simultaneously. Each door has its own drive unit, allowing selective operation while maintaining structural integrity of the vehicle body panel between them.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A vehicle body panel is positioned between the first door and second door to serve as a structural intermediary element. This panel maintains rigidity and provides a mounting surface for the drive unit, preventing the doors from directly compromising each other's structural support.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Stability of the object's composition

If drive unit is permanently integrated to vehicle body, then structural stability is improved, but maintenance convenience deteriorates

Engineering Contradiction:
Improvestructural stabilityVSAvoidmaintenance convenience
Core Design Contradiction:
Stability of the object's compositionVSEase of repair

Solution Approach 1:

The drive unit transitions from a fixed permanent integration to a detachable dynamic connection with the vehicle body panel. This allows the drive unit to be easily removed and reinstalled, enabling maintenance and replacement without permanent structural modification while maintaining stability during operation through secure coupling mechanisms.

Inventive Principle:
Principle #15Dynamics

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 enhances maintenance convenience, improves vehicle stability during overturns, and ensures safe and easy access to the vehicle interior by providing a robust and efficient bidirectional opening mechanism.

Implementation Method 1

gas lift units configured to provide tension in a direction of applying driving force of the spindle unit

Methodology Applied
Scientific EffectGas lift: Gas Lift

Data Source

PatentUS11454062B2Bidirectional door opening module
Publication Date: 2022.09.27 HYUNDAI MOTOR CO LTD
  • US11454062B2 patent drawing
  • US11454062B2 patent drawing
  • US11454062B2 patent drawing

AI summary

A bidirectional door opening module includes a vehicle body panel located between a first door configured to be rotated to open one end of a vehicle and a second door configured to be rotated to open a remaining end of the vehicle, and a drive unit coupled to the vehicle body panel and configured to apply opening force to the first door and the second door, wherein the drive unit includes a driver configured to apply driving force so as to open the first door or the second door, rail units configured to receive the driving force of the driver and then to apply opening force to the first door or the second door, and hinge units coupled to the rail units and configured to perform rotary opening of the first door or the second door.