Airbag (SRS)

Airbags are an attractive high-tech device on modern cars. The car steering wheel with the airbag device installed is usually no different from the ordinary steering wheel. However, once a strong collision occurs at the front of the car, the airbag will instantly “snap” out of the steering wheel and place it between the steering wheel and the driver. The driver's head and chest hit a hard object such as a steering wheel or dashboard. Since the advent of airbags, many lives have been saved. Studies have shown that frontal cars with airbag installations have suffered a frontal collision, the driver’s death rate has been reduced by 30% for large cars, 11% for medium-sized cars, and 14% for small cars.

Airbags mainly consist of sensors, microprocessors, gas generators, and airbags. The sensors and microprocessors are used to determine the degree of collision and transmit and send signals. The gas generator generates ignition action according to the signal indication, ignites the solid fuel and inflates the gas to the airbag to rapidly inflate the airbag. The capacity of the airbag is approximately (50-90)L. . At the same time, the air bag is provided with a safety valve. When the air bag is over-inflated or the pressure in the bag exceeds a certain value, part of the air is automatically vented to avoid crushing passengers. The gas used for airbags is mostly nitrogen or carbon monoxide.

In addition to airbags on the driver’s side, some passenger cars have airbags installed in the front row (ie, dual airbags). Passengers use similar airbags, but the airbags are larger. The gas is also more. In addition, some cars also have side airbags installed on the side of the seat on the side of the door.