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Recall 100 million cars due to airbag problems?Quickly understand the knowledge of airbag cold

Blog 3年前 (2021-10-03) 209 Views

According to news from the General Administration of Quality Supervision, Inspection and Quarantine on the 29th, as of now, 38 companies have been involved in the Takata airbag incident.carThe company implemented 126 recalls, involving 19.516 million vehicles. In recent years, due to the abnormal rupture of the Takata airbag gas generator, more than 100 million affected vehicles have been recalled worldwide.

Recall 100 million cars due to airbag problems?Quickly understand the knowledge of airbag cold

It is estimated that few people have paid attention to airbags. Taking advantage of the problem of Takata airbags, quickly learn more about the cold knowledge about airbags.

1. Airbag trigger conditions

Some people say: If you don’tseat belt, In order to prevent the people in the car from being injured by the airbag, the airbag will not be triggered; Xiaobian comment: It is purely (che) not (du) correct (zi) true.

Whether the airbag is triggered or not has nothing to do with whether the seat belt is worn or not.But collide withsensorRelated, different cars, collisionssensorThe location and limit of the spool are also different. What is the limit?The limit refers to a certain acceleration and deceleration, and you can’t pat it with your hands.bumperJust collapse the airbag.

Recall 100 million cars due to airbag problems?Quickly understand the knowledge of airbag cold

When a certain degree of frontal or side collision is reached, the acceleration and deceleration values ​​of the vehicle received by the sensor reach the limit, the airbag computer connects to the electric squib circuit, ignites the ignition medium in the electric squib, and then ignites the ignition powder and gas. (It really collapses), so as to inflate a large amount of gas into the airbag within 0.03 seconds (the airbag has two vent holes as a buffer, which is not cold knowledge).

The volume of gas is generally around 50L-90L, and the speed is about 300km/h. I usually say that the airbag collapsed is powerful, but this time I know how powerful it is.

Recall 100 million cars due to airbag problems?Quickly understand the knowledge of airbag cold

Others said: Now they are all second-level airbags, and it's okay to collapse. Editor's comment: Not all cars have second-level airbags, and it's not enough to collapse.

The scientific name of the so-called second-stage airbag is called the second-stage unconventional airbag, that is: a small collision with a small acceleration and deceleration triggers a "soft" airbag with a small inflation; when the acceleration and deceleration are large, the first and second airbags are triggered at the same time to avoid Cause unnecessary injury to personnel. However, the cost of ordinary airbags is about two to three thousand, and the cost of secondary airbags is tens of thousands, so high-end cars will be equipped.

Recall 100 million cars due to airbag problems?Quickly understand the knowledge of airbag cold

2. Airbags also have a "shelf life"

It’s normal to drive a car for more than ten years, but the airbag cannot be maintained and it will not never fail. Generally, the airbag will be inspected at a repair shop or 4S shop in about 8-10 years. Although no one wants it to come in handy, it is a life-saving straw when there is no other way, so pay attention to it.

Recall 100 million cars due to airbag problems?Quickly understand the knowledge of airbag cold

3. About the airbag

In a fatal accident, if only the seat belt is used, the survival probability is about 45%.airbag, The probability of survival will increase by 15%, but if only airbags are used, the probability will drop to about 5%. Therefore, both straws must be grasped well.

Some driver friends are insteering wheelSticking to the phone seems to be to avoid distraction, but once the airbag is triggered, the result may be that the phone crashes on the face, and the same kind also has the center console to put perfume.There isSeat cover, Many cars are equipped with side airbags, and the side airbags are set inSeatThe outside, so when you buy a seat cover, check whether the side airbag position can be exposed to prevent the side airbag from failing to explode when impacted.

Recall 100 million cars due to airbag problems?Quickly understand the knowledge of airbag cold

Here is an interesting question, that is, if car A stays still after starting, and car B crashes into car A 100% at a speed of 80km/h, will car A’s airbag be triggered? The editor thinks the answer is yes; because in the side airbag test, car A is not moving and the collision car crashes into car A. So do you think the airbag of car A will be triggered in the above situation? Welcome to leave comments.