Recent，The airbags did not pop up during the collision test of a hot car that continued to cause heated discussion，The airbags can not play again? Although the specific cause of the incident is still under investigation，But this incident undoubtedly brought the old -fashioned topic of airbags to the cusp of the air outlet。Why does the airbags repeatedly attracted attention? How much do you know about airbags?

The airbags on the car are represented by English as SRS，Its full name is SUPPLEMENTAL Inflatable restraint System，It means to assist the seabet ioseabet iooccupant constraint system，Like the seat belt，The airbag also belongs to the auxiliary device of the "dead sheep to make up" when the accident occurs。

The components of the airbag mainly include sensors、Micro processor、Electric control unit、airbag cover and support ring、airbag、airbag module, etc.。When the vehicle collides with a collision，Sensor feels the collision strength of the car and transmits the signal to the controller，After the signal of the controller receives the sensor，Determine whether it is necessary to open the airbag。

When the airbag needs to be opened, the ignition signal is issued to trigger the gas generator，Gas generator quickly ignite after receiving the signal，Chemical reactions that cause some similar small dose explosive explosion，Make the airbag hidden in the car instantly inflated and pop up。

The process that looks very complicated，In fact, the whole process does not exceed 0.1 seconds，The commonly used chemical reagents are sodium nitride or ammonium nitrate，Release a large amount of nitrogen in a short time after ignition the explosion，to fill the airbags made of polypeptide fabric，The potential energy of buffering the impact of the occupant。

At the same time，The airbag also has a safety valve，When excessive inflatable or internal pressure exceeds the fixed value，Can automatically release part of the gas，Avoid passengers from squeezing injuries。

Under normal circumstances，The mainstream household vehicles are set up in front of the main and co -pilot.，Protect the head and face of the main and the co -pilot in the front collision of the vehicle，It is called the main/co -pilot airbag。

Higher models will also install two airbags on the side of the main and co -pilot seats，During the side collision, it plays a role in protecting the main and co -pilot，At the same time，The knee airbag also appears in front of the knee of the main and co -pilot，A designed to protect the legs in the front collision。

With the continuous upgrade of the vehicle's safe configuration，The airbags of the rear passengers are also born to be born，The airbags at the rear side window can protect the head and side of the rear passenger in the collision，Like a new generation of Audi A8 four -seater such as high -end models，Also set up a rear central airbag between passengers in the back row，For the rear passengers to achieve comprehensive protection。

Facts，Many vehicles are equipped with a full number of airbags，But if you use improperly，It will also allow these protection measures to have no supplement when the accident occurs.。How to make airbags play a role in the accident? Be sure to pay attention to the following aspects。

In addition to the fixed role of the occupants in the car，Can also control the speed of the occupant's body in the early stage of the collision accident，Let the occupants contact Seabetseabet loginthe explosive airbags at the right time and position at a suitable moment and location，minimizing the impact of airbags on passengers。

If the occupant in the car does not tie the seat belt，Its body will not slow down in the collision，The greater acceleration will make the occupant prematurely contact the airbag that has not yet fully expanded，At this time, the airbag burst into an instant acceleration and large pressure，It is likely to cause serious damage to the occupants。

Broken driver's face when it is not a seat belt，All cases that cause the co -pilot passengers to coma.。Even when it is a seat belt，The front passenger may also be mild traumatic brain injury after the airbag pops up。

According to the statistical results of traffic accidents over the years，& quot; The effective protection rate of three -point seat belt + airbag & quot;，The effective protection rate of using only the seat belt is 43%～ 49%; and only use the airbag，The effective protection rate drops sharply to 18%。

Some high -end models in order to prevent the damage to the head of the occupant when the airbags burst suddenly，It is also equipped with a secondary airbag，Device that can be graded or releases pressure by adding a hierarchical inflatable or release pressure，In a collision with a small acceleration，"soft" airbag with a smaller inflatable amount of inflatable amount，In a collision with a large acceleration，Triggering first -two airbags at the same time，Prevent unnecessary damage to personnel。

The airbags must not put it on it!Because the airbags have a great power at the moment when the airbags pop up，The instantaneous speed at the time of its outbreak can reach 250 to 350 km/h，The impact can be as high as 150-200 kg，This "lethality" also makes it very likely to be a double -edged sword。

If items are placed on the airbag，These things pop up at the time of outbreak will undoubtedly cause secondary damage to passengers in the car。So，Do not place various ornaments above the airbags of the center console，At the critical moment, they are likely to want your life。

The correctness of the sitting position and the seat also determines whether the airbag can protect us to the greatest extent，or a tool that hurts us in China。The impact of the initial distance between the passengers and the airbag on the mild brain injury，There are already very detailed test results and data。

Related research and test indicates，With the decrease in the distance between the occupant and airbag in the car，The linear impact of the occupant head，and the maximum value of various biore response of the cranioceree will become larger，The degree of brain injury will also increase with it。When the distance between the head of the passenger and the airbag is less than 290mm，The probability of the response parameters of brain tissue is greater than 50%.，That is to say, there are more than half possible，It will cause seabet loginseabet iobrain injury during the pop -up process of the collision accident。

The correct sitting posture is also very important for the occupants during the accident，In 2015, a passenger in the United States collided when the vehicle was in the front row of Erlang's legs，After the airbag is opened，Directly hit the legs and break the nose with connecting it。

If the driving recorder and some additional functions are installed in the car，more or less changed the circuit inside the car，Be sure not to change other lines in this process。Accidentally after changing the airbag system line。

Another，Because the front side airbag is generally placed on the side of the front seat，If you put on a rigorous seat cover，It is very likely that the airbag cannot pop up，Even the explosion hazard rear passenger。

Although the seat belt and airbag can bring personal safety guarantee to the front passengers，But for children, it is no different from the weapon。When a collision occurs，The powerful tensile force of the seat belt may cause children's chest fractures，The impact of pop -up airbags will not only hurt the child's body，It may also cause suffocation。

If you have to be in love, you have to let children sit in the co -driver，Be sure to turn off the front co -pilot airbag，Its switches are generally inside or outside the front glove box in front of the co -pilot，There will be detailed location and operation method in the instructions。In short，Children's safety seat in the rear row is the best shelter in the car。

The service life of the car is not consistent with the design life of gas qi。Under normal circumstances，If the airbag indicator is still flickering or long after the vehicle starts for 10 seconds，You need to check and repair it as soon as possible。

According to the car collision test results in the laboratory，The airbag is not opened when it hit，The appropriate speed and collision angle determines whether it opens。

Generally speaking，About 60 ° in front of the vehicle、Vertical impact on fixed objects，and speed higher than 30 km/h，The airbag can only open。

These are just the theories obtained in the laboratory，Reality is far complicatedMo，Blinds on non -vertical fixed trees，Rear -end truck bottom，Flip accident，Bonds of collision angle, etc.，It may cause the airbags to be unable to pop up。

So，Even if the occupant in the car fully abides by the correct use principle of airbags，The airbag still cannot be exactly the same as the amulet。

It is because there are too many factors that affect the opening of the airbag，Even the riding position of the crew itself、Sit position、Weight, etc. is also related，Therefore, there are currently no standards for opening conditions of airbags at home and abroad。

But the research and development of related technologies for this never stop，German seabet ioSeabetSiemens and British Jaguar and other companies，One after another has developed a management system that can control the detonation of airbags based on the collision environment。Siemens use & quot; three -dimensional camera & quot; and & quot; weight sensor & quot;，Identify the sitting position of the occupants in the seat，Jaguar uses ultrasonic sensing protection system，Detects the weight of the front passenger、The relative location and collision strength of the driver and the steering wheel，To determine the opening time and strength of the airbag。

In addition，Safe-By-Wire network technology specifically targeted at the airbag system，You can also use multiple sensors and controllers through comprehensive use，Implementation of subtle control of the airbag system，Even when the line is short -circuit and the vehicle accident，The airbag system will still pop up normally。

Conclusion

The airbag is just an auxiliary passive security measure when an accident occurs，It not only needs to be used with the seat belt，and keep the correct sitting position and the right seat position，Whether it pops up is also a collision environment，Forestors and other factors such as the weight of the occupant。The more the number of airbags will undoubtedly be more at ease，But the airbag is not exactly equal to the amulet，Under any circumstances, adhering to traffic regulations and driving safely is the safe symbol to avoid accidents。