Multi-chambered Airbag Baffle Vents Offset Impact
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Solution Overview
Problem
Current airbag systems are inadequate in preventing injuries during impacts, as they often fail to maintain passengers within the airbag, leading to increased likelihood of contact with the vehicle's interior during collisions with offset or angular momentum, resulting in potential slips and further injuries.
Innovation Solution
An airbag system with a center chamber and four peripheral chambers, utilizing baffle vents to create pressure differentials between chambers, ensuring greater pressure in peripheral chambers to securely position passengers' heads, chests, and shoulders, thereby preventing them from sliding off the airbag and minimizing contact with the vehicle's interior.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a typical single-chamber airbag is used, then the device complexity is low, but the ability to prevent passenger contact with vehicle interior during offset impacts is insufficient
Solution Approach 1:
The airbag is divided into multiple chambers (front, rear, and side chambers) separated by internal baffles. This segmentation allows different regions to provide tailored protection for various body parts and impact scenarios, significantly improving the ability to prevent contact with vehicle interior during offset impacts while maintaining manageable complexity through modular design
2Reliability
If uniform pressure is distributed throughout the airbag, then the manufacturing and operation are simple, but the passenger may slide off the airbag during lateral impacts
Solution Approach 1:
Different chambers are designed with different pressure characteristics. The side chambers are configured to maintain higher pressure relative to the front and rear chambers, creating localized pressure zones that correspond to the passenger's head, chest, and shoulder regions. This local quality differentiation ensures passenger stability during lateral impacts without requiring complex active pressure control systems
3Reliability
If the airbag deploys to a fixed shape, then the manufacturing precision requirement is lower, but the passenger may slip off the side of the airbag during angular momentum impacts
Solution Approach 1:
The multi-chamber design with internal baffles creates distinct volumetric zones that collectively form a three-dimensional containment structure. This segmented approach allows each chamber to be manufactured with standard precision while the assembled configuration provides the complex shape needed to prevent passenger slippage during angular momentum impacts
Solution Approach 2:
The airbag transitions from a traditional two-dimensional flat deployment to a three-dimensional multi-chamber configuration. This dimensional change creates depth and volume in multiple directions, forming a more effective containment envelope that prevents passenger slippage without requiring extremely high manufacturing precision for each individual component
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 airbag system effectively maintains passengers within the airbag by creating pressure differentials through baffle vents, reducing the risk of injury by stabilizing their position during impacts and preventing contact with the vehicle's interior.
Implementation Method 1
internal baffle vents configured to facilitate gas flow from the center chamber to the four peripheral chambers and impede gas flow from the four peripheral chambers into the center chamber
Implementation Method 2
the center chamber in fluid communication with the four peripheral chambers via internal baffle vents configured to facilitate gas flow from the center chamber to the four peripheral chambers
Data Source
AI summary
The present disclosure relates to a multi-chambered airbag system employing the use of baffle vents to achieve pressure differentials between the different chambers and methods of using the same.