What is the main air bag of a car
auto main air bag is an airbag installed directly in front of the driver's seat, usually in the center of the steering wheel. In the event of a vehicle collision, the main air bag will be inflated and popped out instantly, forming a buffer between the steering wheel, thereby reducing the injury caused by the driver's head and upper body bumping against hard objects .
Working principle
The working principle of the main air bag is based on the airbag system (SRS). The system consists of a gas generator and chemicals (such as sodium azide or ammonium nitrate), when the vehicle impact degree reaches a preset detonation value, the gas generator will produce a large amount of gas in a very short time, filling the entire airbag .
Type and location
The main air bag is usually located in the center of the steering wheel directly in front of the driver's seat. In addition, there are other types of airbags on the car, including passenger seat airbags, front and rear side airbags, side air curtains, knee airbags and so on. These airbags are distributed in different locations of the vehicle and together form a comprehensive safety protection network .
Care and maintenance advice
Although airbags can save lives in critical moments, regular maintenance and maintenance are also very important. Here are some suggestions:
Avoid seat covers : Give seat covers with side airbags Seat covers can prevent the airbag from ejecting.
Avoid placing decorations around the air curtain : decorations around the air curtain may affect its normal operation.
Child safety : Children should not be placed in the front seat, as air bag ejection can cause serious injury to children .
The main function of the car main air bag is to provide protection when the vehicle crashes, reduce the impact between the occupants and hard objects in the car, so as to reduce the risk of occupant injury . Specifically, the main airbag inflates rapidly during a frontal crash to cover key body parts of the driver and front passenger, such as the head, chest, and knees, to reduce direct contact with interior components .
Working principle
The main air bag system is usually composed of collision sensor, airbag computer, SRS indicator light and airbag assembly. When the vehicle crashes, the sensor detects the impact force and triggers the detonating circuit, the detonation agent in the airbag assembly is ignited, and the generated gas is quickly charged into the airbag to form a protective layer .
Type and installation location
The main air bag of automobile includes front air bag, side air bag and knee air bag. Front airbags are usually mounted on the steering wheel and passenger console, side airbags are mounted on the B and C pillars, and knee airbags are located on the driver's and passenger's knees .
Maintenance and precautions
In order to ensure the normal operation of the main air bag, the following points need to be noted:
Do not knock or hit the airbag site, avoid direct flushing with water.
The driver should maintain a correct sitting position so that the airbag can fully play its protective role in the event of an accident.
In vehicles with airbags in the passenger seat, children should not be seated in the front seat or placed in a child seat unless the airbag can be manually deactivated in this position.
Always wear a seat belt, otherwise in the event of an accident, the airbag may cause serious injury .
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