GB/T 38795-2020 Performance requirements of side airbag and curtain airbag module English
1 Scope
This standard specifies the technical requirements and test methods for side airbag modules and curtain airbag modules.
This standard applies to side airbag modules and curtain airbag modules installed in M1 type vehicles, and it may apply to ones for other types of vehicles by reference.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 10125 Corrosion tests in artificial atmospheres - Salt spray tests (GB/T 10125-2012, ISO 9227: 2006, IDT)
GB/T 19949.2 Road vehicle - Airbag components - Part 2: Testing of airbag modules (GB/T 19949.2-2005, ISO 12097-2: 199G, IDT)
GB/T 28957.1 Road vehicles - Test dust for filter evaluation - Part 1: Silicon dioxide test dust (GB/T 28957.1-2012, ISO 12103-1: 1997, MOD)
3 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.
3.1
side airbag module; SAB
airbag module installed in the inside of a vehicle seat or side interior and as a passive safety device used to protect occupants on the side in the event of a vehicle crash. Side airbag module assembly consists of, but is not limited to, an air bag, a gas generator, a connector, a label, and other auxiliary parts
3.2
curtain airbag module; CAB
airbag module installed on the top of the side of an automobile or the interior of the door and as a passive safety device used to protect the head of occupants in the event of a vehicle crash. Curtain airbag module assembly consists of, but is not limited to, an air bag, a gas generator, a connector, a label and other auxiliary parts
3.3
sewing line
thread for sewing the airbag circumference, dividing the airbag compartment, and keeping an airbag module intact and functioning normally
3.4
seam
linear connection structure that forms an airbag (e.g. integral airbag) compartment profile for keeping the airbag module intact and functioning normally
3.5
filling time
time it takes for the airbag module to receive the ignition signal until its airbag is inflated to meet the design requirements
3.6
burning
air bag being burned through during the deployment
3.7
intact
the sample is not completely damaged after the test, and subsequent tests can be carried out
3.8
temperature build-up time
te
difference between the time taken for the temperature of the defined test sample reference point (generally the point at which the temperature of the test sample changes the slowest) to rise or decrease from the initial temperature to the target temperature minus the time taken for the climatic temperature to rise or decrease from the initial temperature to the target temperature
3.9
power spectral density; PSD
distribution of power contained in each frequency component of the random signal in the frequency domain
Note: It is usually expressed as PSD, in quadratic power per hertz (g2/Hz). The graph of its distribution in the frequency domain is called a spectrogram.
4 Side airbag module and curtain airbag module deployment requirements
4.1 The sub-parts of the module shall not have hard splash (such as metal parts and plastic parts) caused by the deployment of the airbag during and after the static deployment test of the airbag module described in Clause 7. If there is any hard shedding, it shall not fall off towards the occupant side.
Contents
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Side airbag module and curtain airbag module deployment requirements
5 Environmental and static deployment test sequence of side airbag module and curtain airbag module
6 Environmental test
6.1 Drop test
6.2 Mechanical impact test
6.3 Dust test
6.4 Temperature vibration test
6.5 Thermal humidity cycling test
6.6 Salt spray test
6.7 Temperature shock test
6.8 Thermal aging test
7 Static deployment test
7.1 Low temperature static deployment
7.2 Normal temperature static deployment
7.3 High temperature static deployment
7.4 Data recording
