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Air bag for pedestrian protection system and automobile equipped with the system

A pedestrian protection and airbag technology, applied in transportation and packaging, pedestrian/occupant safety arrangement, vehicle components, etc., can solve the problems of lack of impact force dispersion structure, head piercing, etc.

Active Publication Date: 2017-03-01
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the head hits the end area of ​​the airbag covering the A-pillar, there is a lack of structure to disperse the force of the impact
With an overpressure of the same magnitude generated in the airbag, the retardation effect obtained by the head is smaller in the case of an impact on the end area than in the case of an impact on the front cover, and at relatively low impact speeds, the There may already be a risk of head crashing into the A-pillar

Method used

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  • Air bag for pedestrian protection system and automobile equipped with the system
  • Air bag for pedestrian protection system and automobile equipped with the system
  • Air bag for pedestrian protection system and automobile equipped with the system

Examples

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Embodiment Construction

[0026] figure 1 In a simplified perspective view, a part of the bodywork of a motor vehicle with an airbag 1 according to the invention is shown immediately after contact with a pedestrian. The front cover 3, which is generally flush with the adjacent fender 2, is lifted by the inflated airbag 1 to a position where, in the non-inflated folded rest state, the cover is concealed A part of the airbag 1 below the rear edge of the panel 3 protrudes through the gap between the rear edge of the cover panel 3 and the front windshield 4 . Most of the first middle section 6 of the airbag 1 supporting the rear edge of the front cover 3 is hidden under the front cover 3 . The second middle section 7 rests above the lower edge of the windshield 4 , and the end sections 8 respectively cover the lower regions of the A-pillars 5 attached to the sides of the windshield.

[0027] figure 2 A schematic top view of an inflated airbag 1 detached from a vehicle is shown. In plan view, the airba...

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PUM

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Abstract

An airbag for a pedestrian protection system, which comprises a long strip-shaped first middle section (6) and an end section (8) bent from the end of the first middle section (6) in an inflated state. At least one first and second membrane (16, 22) having different air permeability values ​​are distributed over said sections (6, 8) such that the average air permeability of the end section (8) is lower than the average air permeability of the first middle section (6). breathability.

Description

technical field [0001] The invention relates to an airbag for a pedestrian protection system in a motor vehicle, which is designed to inflate suddenly when the motor vehicle comes into contact with a pedestrian and thereby cushion the impact of the pedestrian on the vehicle body. Background technique [0002] Such an airbag and a motor vehicle equipped with such an airbag are known, for example, from DE 10 2005 041 274 A1. This conventional airbag is folded tightly together at rest, placed under the rear edge of the car's hood, and when it inflates, the airbag first props up the hood so that it can then pass through the The gap created by lifting the bonnet extends over the lower edge of the windshield adjoining the bonnet and the A-pillars adjoining the sides of the windshield. When a pedestrian's head hits the lower edge of the front panel, the front panel should then sag at least at the point of impact, and the airbag, which yields due to the compressibility of the gas c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R21/36
CPCB60R2021/23509B60R2021/23324B60R21/36B60R21/34B60R21/38B60R21/233B60R21/235
Inventor U.里克
Owner GM GLOBAL TECH OPERATIONS LLC
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