Side Airbag Functional Band Chamber Positioning
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Solution Overview
Problem
Existing side airbag systems struggle to accurately position inflatable chambers during deployment, leading to potential misalignment and reduced protective effectiveness, especially in protecting the pelvic region of vehicle occupants.
Innovation Solution
A side airbag arrangement featuring a functional band that is secured outside the airbag and exerts a holding force on at least one chamber to maintain a predetermined position, preventing misalignment and ensuring optimal protection by connecting the chamber to the vehicle, thereby enhancing the airbag's protective action.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If no functional band is used, then the airbag system is simpler, but the chambers cannot be accurately positioned during deployment
Solution Approach 1:
A functional band is introduced as an intermediary component between the airbag chambers and the vehicle structure. The band includes a first end connected to the first chamber and a second end connected to the vehicle, mediating the positioning force to ensure accurate chamber positioning during deployment without requiring direct integration of the chambers into the vehicle structure.
2Stability of the object's composition
If the pelvic chamber is not restrained, then the airbag can inflate freely, but the chamber may fold over the rib region causing misalignment
Solution Approach 1:
The functional band is pre-connected to the first chamber and the vehicle before deployment. This preliminary connection establishes a restraint mechanism that prevents the pelvic chamber from folding over the rib region during inflation, ensuring the chamber maintains its intended position and alignment with the vehicle structure.
3Manufacturing precision
If the functional band is not connected to the vehicle, then the installation is easier, but the chamber cannot maintain predetermined position
Solution Approach 1:
The functional band serves as a mediator that connects the airbag chamber to the vehicle structure through a standardized interface. The band includes connection elements that facilitate attachment to the vehicle, providing a simple and efficient installation process while ensuring accurate positioning of the chamber relative to the vehicle structure.
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 functional band ensures accurate positioning of airbag chambers, preventing the pelvic chamber from folding over the rib region and ensuring optimal protection of the pelvic area, while maintaining stability and preventing the thorax chamber from being subjected to excessive load.
Implementation Method 1
The functional band is configured to exert on at least one of the chambers of the airbag a holding force such that the chamber, after inflation, assumes a predetermined position provided for the chamber
Data Source
AI summary
A side airbag arrangement for a vehicle occupant restraint system includes an airbag which is provided for the protection of a vehicle occupant and which has at least two inflatable chambers which are in each case to assume a specific position in a motor vehicle after inflation. A functional band is provided, which is secured by a portion outside the airbag. At least a portion of the functional band exerts on at least one of the chambers of the airbag a holding force, which has the effect that the chamber, after inflation, assumes the position provided for the chamber.