Safety airbag of automobile
Airbags are familiar passive safety configurations. Its English official name is SRS(Supplement Restraint System), and it is often directly called Airbag according to its structure. The airbag is made of a high-strength cloth bag, which is usually folded flat and stored in the interior materials. When a vehicle has an accident, the airbag will be activated after the collision sensor detects the accident. The airbag will be inflated quickly to act as a buffer between the occupant and the vehicle, so as to prevent the human body from being injured by hitting the structure of the vehicle body or broken glass. After the buffer effect is achieved, the airbag mechanism will exhaust quickly to avoid blocking the driver's sight and rescue work.
The airbag is an auxiliary passive safety device of a safety belt, which inflates during the collision and acts as a buffer device for passengers to avoid more serious injuries. The airbag of the driver's seat is generally in the middle of the steering wheel, while the passenger seat is located on the front center console. Depending on the space and design, the shape is different. It can be divided into the single airbag, double airbag, four airbag and multiple airbags. Divided into airbag seat belts, side airbags, knee airbags and head airbags by space.
Commonly used automobile airbags are mainly composed of airbag sensors, anti-collision airbags and electronic control devices. The driver-side anti-collision airbag device is in the steering wheel; The occupant-side anti-collision airbag device is generally installed on the instrument panel. The airbag sensors are respectively installed on the left, right and middle of the cab partition board. The airbag sensor and airbag system in the middle are installed together with the electronic control device. The airbag module is mainly composed of an airbag, a gas generator and an igniter. For example, the electronic control device is used for data acquisition and data processing, diagnosing the reliability of the airbag, ensuring that when the preset value is reached, the ignition signal is sent out in time, and the ignition is carried out at a regular time to ensure that the driving gas generator has enough driving current, etc.
In pursuit of the efficiency of airbag inflation, airbags are now equipped with explosive charge, which can generate a large amount of gas in a short time by detonating. Because of the great energy generated by detonation, the airbag will generate great impact force when it explodes, which may cause injury to personnel. Airbags designed by adults are more fatal to underage passengers, so underage passengers should ride in the back seat just in case. At the same time, you should also be careful not to place objects in front, above or near the airbag. Since the airbag will detonate in an emergency, do not place objects in front, above or near the airbag to prevent the airbag from throwing out when detonating, thus injuring the occupants. In addition, when installing CD, radio and other accessories indoors, observe the manufacturer's regulations, and do not arbitrarily modify the parts and circuits within the scope of the airbag system, so as not to affect the normal operation of the airbag.
Airbags are disposable products. After the airbag is detonated by collision, it no longer has protection ability, and each airbag can only be used once. The airbag is a disposable product, and it must be returned to the repair factory for a new airbag after detonation. The price of airbags varies with different models. Reinstalling a new set of airbags, including an induction system and computer controller, will cost about 5,000-10,000 yuan, so we should also pay attention to the daily maintenance of airbags. The indicator light of the airbag is installed ON the instrument panel of the vehicle. Under normal circumstances, when the ignition switch is turned to ACC position or ON position, the warning light will light up for about four or five seconds for self-inspection and then go out. If the warning light is on all the time, it indicates that the airbag system is faulty, and it should be repaired immediately to avoid airbag failure or accidental ejection.
The above is the introduction of an automobile airbags. I hope you will be more familiar with automobile airbag after reading this article and hope this article can really help you.