What kind of device is an airbag?

Composition of an airbag system.

The airbag system mainly includes collision sensors, airbag computers, system indicators, airbag components and connection lines, and the airbag components mainly include airbags, inflators and igniters.

Airbags cushion the vehicle in the event of a collision, thereby reducing the damage caused by the impact to the occupants of the vehicle. Many people equate airbags with SRS, which is inaccurate, but airbags are just a type of SRS. SRS is the abbreviation of Plemental Restraint System in English, which means auxiliary protection system in Chinese, and common auxiliary protection systems include airbags and seat belts.

In many cars, the SRS or Air Bag is marked on the steering wheel and above the glove compartment on the right side of the dashboard, indicating that there are airbags installed here.

Composition of an airbag system.

The airbag system mainly includes collision sensors, airbag computers, system indicators, airbag components and connection lines, and the airbag components mainly include airbags, inflators and igniters.

1) Collision sensor.

For vehicles produced by various automobile manufacturers, the installation position of the collision sensor is different, and the name of the collision sensor is not uniform, for example, some collision sensors are also called accelerometers according to the working principle.

Depending on the application, collision sensors are divided into trigger collision sensors and protective collision sensors. The trigger collision sensor, also known as the collision intensity sensor, is used to detect the deceleration or inertia during the collision and transmits the collision signal to the airbag computer as the trigger signal of the airbag computer; The protective crash sensor, also known as the safety crash sensor, is connected in series with the trigger collision sensor to prevent the airbag from detonation.

Take you to learn about airbags.

An airbag system is a protection system for passive safety (see Automotive Safety Performance).

It works in conjunction with the seat belt to provide effective anti-collision protection for the occupants. In the event of a car collision, car airbags can reduce the rate of head injuries by 25% and the rate of facial injuries by about 8 0%.

PrincipleWhen a collision occurs during the driving of the car, the airbag sensor first receives the impact signal, and as long as the specified strength is reached, the sensor will produce action and send a signal to the electronic controller. After receiving the signal, the electronic controller compares it with its original stored signal, and if the airbag condition is reached, the driving circuit sends a starting signal to the inflator in the airbag assembly.

After receiving the signal, the gas generator is ignited, and a large amount of gas is generated, which enters the airbag after being filtered and cooled, so that the airbag breaks through the liner quickly in a very short time, forms an elastic air cushion in the front of the driver or occupant, and leaks and contracts in time to absorb the impact energy, so as to effectively protect the human head and chest, so that it can avoid injury or reduce the degree of injury.

Precautions for the use of airbags:

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 it from being ejected by the airbag during detonation, thereby injuring the occupants. In addition, when installing accessories such as CDs and radios indoors, it is necessary to comply with the manufacturer's regulations, and do not modify the parts and circuits within the scope of the airbag system at will, so as not to affect the normal operation of the airbag.

Children should be especially careful when using airbags. Many airbags are designed for adults, including the position of the airbag in the car, its height, etc. When the airbag is inflated, it can cause injury to the child in the front seat. It is advisable to place the child in the middle of the back row and secure it.

It is an auxiliary safety protection device, and the airbag must be coordinated with the seat belt to function. An airbag is an application system, and the airbag that we often see is actually just the execution unit of this system. One of the most important parts of an airbag system is the ECU (Electronic Control Unit, commonly known as the Airbag Computer).

Airbags are passive safety measures, passive safety measures include airbags, seat belts, active safety measures such as brake pedal, handbrake, auxiliary safety reversing radar, and reversing camera.

It is a passive safety device that protects passengers in the event of a safety incident. Hope it works for you.

Hello, the airbag on the car is a kind of safety that protects the driver and co-driver of the car. The airbags on the car are initiating devices.

Airbags are generally composed of sensors, electronic control units (ECUs), inflators, bags, clocksprings, etc., and usually the inflators and airbags are made together to form an airbag module. The sensor feels the intensity of the car collision and transmits the felt signal to the controller, the controller receives the signal of the sensor and processes it, when it judges that it is necessary to open the airbag, it immediately sends out an ignition signal to trigger the gas generator, and after the gas generator receives the ignition signal, it quickly ignition well produces a large amount of gas to inflate the air bag. The most important indicator of an airbag is reliability, if it should not be ignited and the ignition opens the airbag is called misignition

If it should be ignited but not ignited, it is called leakage ignition, and if ignition is too late, it is called late ignition, whether it is misignition, leakage ignition, or late ignition is not allowed. In order to improve the reliability of the airbag system and prevent the power cord from being interrupted in a collision and the battery from being damaged, the system is equipped with energy storage capacitors or batteries to ensure that the airbag can be opened even if the power is lost. To monitor sensors, electronic circuits, gas generators; The system generally also has a fault diagnosis module and a signal light to display.

Automotive airbag systems generally have a left and right baffle sensor, and a sensor placed in a controller containing a diagnostic module, and the airbag has a frontal collision airbag for the driver side and a frontal collision airbag for the passenger seat, as well as warning lights. When a front collision occurs, as long as one of the two baffle sensors is closed, the diagnostic module will process and judge according to the signal sent, and send an ignition signal to inflate the airbag when it deems it necessary to ignite.

An airbag system is a system that uses only seat belts to protect the driver and passengers in the event of a low-speed collision, without wasting airbags. In the event of a collision at a speed greater than 30 km/h, the seat belt and airbag will ,.. act at the same time

The airbag system is mainly composed of sensors, airbag components, airbag electrical energy, etc.

An automotive airbag system consists of a crash sensor, a control module (ECU), an inflator, and an airbag:1. Airbag Sensors:

It is also commonly referred to as a collision sensor. Depending on the application, collision sensors are divided into trigger collision sensors and protective collision sensors. The trigger collision sensor, also known as the collision intensity sensor, is used to detect the acceleration change during the collision and transmit the collision signal to the airbag computer as the trigger signal of the airbag computer; Collision sensors, also known as safety collision sensors, are connected in series with trigger collision sensors to prevent airbags from detonation.

2.Control Modules (ECUs): Collision protection sensors are typically assembled with airbag system ECUs, mostly mounted under the cockpit center console.

The ECU is the core component of the airbag system. 3.Gas Generator:

It is mainly used to generate a large amount of gas in a short period of time (about 30ms) and fill airbags. The gas produced must be harmless to the human body and the temperature must not be too high. At the same time, the gas generator is required to have high reliability and stability.

At present, gas generators mainly include compressed gas type, pyrotechnic type and mixed type. 4.Airbags:

It is generally made of polyethylene terephthalate fabric, which has good crack resistance. It is a semi-rigid polymer beam material that can withstand a lot of pressure. After vulcanization, the impact of airbag inflation is reduced.

An airbag is a passive safety protection device.

Airbags are generally composed of sensors, microprocessors, electronic control units, airbag covers and support rings, airbags, airbag modules, etc. When a collision occurs, the sensor can sense the intensity of the crash and transmit a signal to the controller, which determines whether the airbag needs to be deployed.

Airbags are generally installed in the front, side and roof directions of the vehicle. The exterior of the container equipped with the safety land split airbag system is printed with the abbreviation "SRS", which literally translates into Chinese as auxiliary inflatable restraint system. The aim is to reduce the severity of the injury and avoid a secondary collision or being thrown out of the seat in a dangerous situation such as a rollover in the event of a collision.

The importance of airbags:

The function of the car's airbag is to prevent the members of the car from colliding with the parts in the car when the vehicle collides, thereby causing serious injury, and the vehicle's airbag and the car's seat belt are used in conjunction with each other.

Most airbag sensors are also known as collision sensors. Depending on the application, collision sensors include triggering collision sensors and protecting collision sensors. Trigger sensor, which is used to check the change in acceleration during the collision and transmits the collision signal to the airbag computer as a trigger signal from the airbag computer.

Crash sensors, also known as safety crash sensors, are connected in series with trigger collision sensors to avoid airbag accidents**.

The English name of the airbag is SRS, and the full name of "SRS" is Supplemental Inflatable Restraint System, which originally meant to assist the occupant restraint system. We can simply think of airbags as an auxiliary device for seat belts.

Automotive airbags are generally composed of sensors, microprocessors, electronic control units, airbag covers and support rings, airbags, airbag modules, etc. When a collision occurs, the sensor feels the intensity of the car collision and transmits the felt signal to the controller, the controller receives the signal of the sensor and processes it, and when it judges that it is necessary to open the airbag, it immediately sends out an ignition signal to trigger the gas generator, and after the gas generator receives the ignition signal, it quickly ignition well generates a large amount of gas to inflate the airbag.

Auxiliary passive protection!

Airbags are generally installed in the front of the car (front and passenger seats), side (front and rear seats) and roof. Containers equipped with airbag systems are printed on the outside with the words (Supplemental Inflatable Restraint System, referred to as SRS), which literally translates into Chinese as "Auxiliary Inflatable Restraint System". The aim is to reduce the degree of injury to the occupants and prevent the occupants from being thrown out of their seats in dangerous situations such as secondary collisions or vehicle rollovers in the event of a collision.