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Driver-side i-SRS Airbag System with Continuously Staged Inflation

Article of Honda R&D Technical Review Vol.21 No.2


It is desirable for airbags to provide optimal occupant protection performance for vehicle occupants, who come with a variety of physiques and riding postures, in a variety of collision circumstances, among other variables.
However, in order to enable the bag to be inflated more quickly and to maintain occupant protection performance over a longer period under various circumstances, current driver-side airbag systems necessitate the use of dual stage inflators, occupant position detection systems, and the like, to enable the complex control necessary for the provision of optimal occupant protection performance without increasing the risk of inflation injury upon airbag deployment.
A driver-side airbag with continuously staged inflation was therefore developed using spiral sewing technology that tears at specified pressures together with vent timing control. Featuring a simpler system than that of the existing technology, this airbag is able to provide more tailored occupant protection for a wider range of differing physiques and collision circumstances and appears to do so without increasing inflation injury risks.

Author (organization or company)

Makoto NAGAI(Automobile R&D Center)、Hiroyuki NOZAKI(Automobile R&D Center)、Yusuke CHIDA(Automobile R&D Center)、Yuu SASAKI(Automobile R&D Center)、Naoto TANIGUCHI(Automobile R&D Center)、Munetoshi NAKASHIMA(Automobile R&D Center)

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