Car airbags is part of a safety system designed to protect the driver and passengers in the event of a collision. However, few people understand their importance in minimizing the risk of injury. Let's Wuling EV Vietnam Discover more about the important role of airbags in cars in the article below.
1. What is a car airbag?
Car airbags is an important part of a safety system called the Supplemental Restraint System (SRS). It is designed to protect the driver and passengers in the event of a collision. Passive devices are integrated into parts of the car such as the steering wheel, dashboard or steering column.
Airbags in cars capable of absorbing part of the impact force by inflating quickly when a collision occurs. This process creates an air cushion between the person and the vehicle's hardware. This minimizes direct damage to the body. It is especially important in strong collisions, preventing the risk of head and spine injuries. Additionally, it provides an additional layer of protection for the driver and passengers in the event of an accident.
Illustration of car airbags
Types of airbags in cars plays an important role in minimizing the risk of injury when traffic accidents occur. Together with seat belts, airbags form a comprehensive safety system for car users. It helps improve survival and minimize damage in unfortunate situations on the road.
2. Structure and operating principle of airbags in cars
Today, traffic accidents are a serious problem worldwide. Car airbags has become an indispensable part to minimize injuries to drivers and passengers. To better understand its role, we need to understand the structure and operating principles of airbags.
2.1. Structure of car airbags
Air bag structure car is built from three main components: the sensor system, the detonator and the airbag. Car airbags activated through a diverse sensor system. These sensors include acceleration sensors, collision sensors, and pressure sensors. When a collision occurs, these sensors send signals to the airbag controller. Through this process, the system is activated to protect the driver and passengers.
The detonator is an important part belong to airbags in cars. The task of this part is to create a large amount of gas in the shortest time when an impact occurs. This gas will be used to quickly inflate the airbag, creating a safe cushion for people in the car.
Collision sensors on cars, an important part of the airbag system
Airbags are made from highly durable and stretchable fabric. This material is usually nylon or polyester specifically designed to withstand the pressure when the airbag inflates. At the same time, airbags are folded and placed in strategic locations in the car.
2.2. Operating principle of car airbag sensor
System Car airbag sensor Integrates many types of sensors such as collision, acceleration, speed and brake pressure sensors. These sensors send signals to the airbag control unit (ACU), which is responsible for analyzing the data and determining the severity of the collision. When the collision level exceeds the allowable threshold, the detonator in the airbag inflator is activated.
The detonator begins to produce an electric current of 1A to 3A for a short time to ignite the igniter and gas particles to create a large amount of gas. This amount of air is quickly pumped into the airbag, creating a safe cushion between the occupant and the hardware in the car.
The car airbag sensor system minimizes the risk of injury to the driver and passengers in the event of a traffic accident.
The air is compressed inside car airbags and inflates at speeds up to about 300km/h. This creates a protective seal in less than 0.04 secondsy. Once fully inflated, the airbag will deflate quickly. This minimizes injury to people in the car.
3. Types of airbags in cars
Car airbags has become an indispensable part of the vehicle safety system. Here it is Types of airbags in cars inand their features:
3.1. Airbag in front of the steering wheel
Airbag in front of the steering wheel designed to protect the driver in a frontal collision with an angle of approximately 30 degrees on both sides of the vehicle. When there is a collision, this airbag will activate to minimize the risk of injury to the driver's head and chest. It provides additional protection and activation control to prevent unnecessary airbag inflation in minor collision situations.
The protective feature of the steering wheel front airbag helps reduce the risk of injury
3.2. Side airbags
Side airbags are an important part of the car's safety system, protecting occupants when the car is hit from the side. There are three main types: curtain airbags, side airbags and Car airbag sensor Combines both protection functions. When the vehicle is subjected to a strong impact or the temperature exceeds 150 degrees Celsius, the side airbags will be activated. This ensures passenger safety in case of an accident.
The protective features of side airbags provide safety for passengers in all conditions and situations on the road
3.3. Airbags below the knee
Knee airbags help protect the driver's knees in the event of a frontal collision. This is an integral part of the car's overall safety system. Accompanying other features such as car airbags front and seat belts to protect passengers on the road.
Driver's knee airbags protect the driver's knees in a frontal collision
3.4. Airbags in seat belts
What is the effect of car airbags? Airbags on seat belts will help limit damage to the chest in collision situations. This function ensures the highest level of protection for vehicle occupants.
Airbags on seat belts reduce damage to the chest in car accidents
3.5. Airbags above the car's ceiling
Car airbags The top of the car's ceiling is designed to protect passengers' heads and necks when there is a collision from above. This helps minimize the risk of injury in accident situations.
Airbags above the car's ceiling protect the head and neck in the event of a collision from above
4. Notes on car airbag systems
To ensure maximum performance and safety of the airbag system, there are a few things to keep in mind as follows:
4.1. Do not place objects on the airbag unit
System car airbags operates at extremely fast speeds to generate powerful force and minimize the impact of collisions. This can cause materials around the airbag surface to move abnormally. To ensure passenger safety, the most important thing is not to place or attach additional objects to the surface of the door air bag (usually the steering wheel surface).
Remember not to place objects on the surface of the airbag to ensure the safety of vehicle occupants
4.2. Sit in the correct posture and wear a seat belt when riding in a car
Car airbags Does not work independently but in conjunction with a seat belt. If the vehicle occupant is not wearing a seat belt during a collision, the body may hurl forward. At the same time, when the airbag deploys, it can push the head against the windshield. This caused severe injuries in the chest area due to the force of the explosion up to 322 km/h. Therefore, sit in the correct posture and wear seat belts to ensure the safety of everyone in the car.
Sit in the correct position and wear a seat belt to avoid serious injury in case the airbags operate during a collision
4.3. Do not cross your arms while driving
To drive safely, drivers are advised not to cross their hands on the steering wheel. In case Types of airbags in cars opens when a collision occurs. The force of an airbag explosion can cause injury to the driver if the driving position is not correct.
Avoiding crossing your hands on the steering wheel helps avoid injury in case the airbag becomes effective in a collision
4.4. Do not touch the inside of the air bag
Airbags explode due to the large amount of gas inside the bag being activated through the ignition process. The heat will stay around the area car airbags shortly after explosion. Therefore, we should not touch the inside of the air bag to avoid burns.
Avoid touching the inside of the air bag after it explodes to prevent the risk of burns due to the high temperature of the hot vapor
4.5. Children under 12 years old are not allowed to sit in the front seat
Automobile manufacturers recommend that children under 12 years old should not sit in the front seat for many safety reasons. Children at this age are often hyperactive and curious, which can be dangerous when tampering with car controls. Also, in case car airbags When effective, children under 12 years old are at high risk of injury from strong impact Car airbag sensor.
Children under 12 years old should not sit in the front seat for safety
5. Misconceptions about airbags
Car airbags has become an indispensable part of the car's safety system. But it still exists many misconceptions around. Here are the facts that need to be understood to deal with misconceptions about airbags.
5.1. Airbags only deploy when the vehicle collides
On many people's minds when a car collides Types of airbags in cars will automatically pop out. However, the reality is not so. The airbag only deploys when the sensor measures the vehicle's stopping acceleration level reaching a certain threshold, usually 2G or more. In small collisions, the acceleration level is often not enough to activate the airbag and the seat belt will take on the role of protecting the occupants.
For example, a car traveling at a speed of 70km/h crashes into a car in front moving at a speed of about 50km/h, but Airbag location in car does not unfold. The reason is because the car behind does not stop too suddenly and the acceleration level does not reach the 2G threshold.
In a small collision, the airbag does not deploy due to insufficient acceleration and the seat belt still ensures safety
From there, it can be seen that car airbags only works when certain conditions have been established by the manufacturer. It is normal and not a fault for airbags to not deploy in some collisions.
5.2. Airbags deploy only when wearing seat belts
The notion that car airbags only deploy when wearing seat belts is mistake. Job hThe operation of the airbag does not depend on whether you are wearing a seat belt or not. The sensor records collision information and the ECU decides to activate the airbag. Checking the error light on the dashboard can help detect problems with the vehicle's airbag system.
Airbags do not only deploy when wearing seat belts, the decision to deploy airbags depends on the collision sensor and speed information.
5.3. Airbags are equipped in all vehicle models
Not all cars have airbags, even though it is a basic safety feature. In some countries car airbags becomes mandatory. But in other places (including Vietnam) there are still no regulations on this. Therefore, it is very important to check the airbag system when buying a car, especially a used car.
Although airbags are an important safety feature, not all cars are equipped with them
5.4. Front airbags will be safe for children
Car airbags The front is not always safe for children. Research shows that children can be injured by the high force of air bag deployment. If a child is sitting in the front seat, always pull the seat back a little. However, it is best for small children to sit in the back seat except in emergency situations.
Children sitting in the front seat are at risk of injury from frontal airbags
In addition, when carrying children in the car, always use a safety seat appropriate for the child's age and weight. Child safety seats are designed to provide maximum support and protection in the event of a collision. Placing children in the back seat and using the correct type of safety seat will minimize the risk of injury to children in all traffic situations.
5.5. Deployed air bags contain very toxic dust
Dust is emitted when car airbags Non-toxic bung. This smog is mainly a mixture of Nitrogen gas and fine dust used to activate air bags. This does not pose a health hazard.
Dust emitted when airbags deploy is non-toxic and does not pose a health hazard
To ensure safety, after the airbag has been activated, you should open the door or window to let the air escape and clean the space in the car. This action helps remove dust and fumes quickly. Copper while ensuring the environment in the car is always clean and safe for everyone.
6. Instructions for replacing car airbags yourself
Replace yourself airbags in cars is a skill that can help you save on repair costs and maintain your car in top condition. Below are specific instructions on how to replace Types of airbags in cars safely and effectively.
- Turn off the vehicle engine and disconnect the negative cable.
- Wait about 15 - 20 minutes for the airbag module capacitor to be completely disconnected.
- Disconnect the airbag fuse to ensure safety and avoid shock or sudden airbag activation. You can refer to the fuse section in the vehicle owner's manual.
- Unscrew the screws in the steering column and remove the old air bag. Continue connecting the new air bag to the wire and then return it to the old position and re-tighten the screw.
- Reconnect the negative cable to its original position, activating the fuse again.
You should take your car to have the airbag replaced at a genuine garage or large car repair shop outside
Thank you very much for your interest in this article. Hope that information about car airbags has provided you with an overview and deeper understanding of its importance in protecting drivers and passengers. If you have any concerns or questions, please get in touch Wuling EV Vietnam for advice and support.
