How the airbag works
Most car enthusiasts know that their car has airbags, but not all of them understand what they're meant to do. However, this is one of the main systems of passive safety that minimise the risk of injury to the driver and passengers.
In the case of an accident, the airbags shall be opened instantly and help to prevent a person's tight contact with the details of the interior of the car, excluding dangerous overloads. However, this is only fair in case of accidents at medium speeds-in traffic accidents at high speeds can only be expected for luck.
The myth that the airbag could work, even if you just kick the bumper, is actively cultivated among motorists. But it has nothing to do with reality. Most cars are programmed to airbag airbags at a certain speed. For example, in a collision with a rigid obstacle, they shall be disclosed at a speed greater than 30 km/h. And with the impact of the deformable barrier, that is, the other car, the pillows operate at a speed of about 50 km/h.
The working principle of this system is quite simple. The collision itself, that is, obtaining a car of a sharp negative acceleration, is fixed by the sensor. If the impact is greater than the threshold value, the sensor is closed. After receiving a signal from it, the control unit gives the command to uncover airbags.
The airbags with the airbags are solid fabric bags with special impregnation. They are disclosed using the gases emitted by the combustion of the built-in pyrocartridges. The whole process from the impact fixation, before the airbag actuation takes a fraction of a second.
How to repair airbags
It should be noted that self-repair of airbags is a risky business. It is not even that in the event of an accident they will not be solved, but that they can work spontaneously during the movement. The consequences could be deplorable. That's why it's better to trust an official dealer.
But if you have decided to repair this system yourself, you should know where to start first.
The airbags are made in the form of a single pyroholder of a knots. Most often it is necessary to buy new pillows, although some prefer to save and buy them in car disassembly. The savings could be substantial, but there was a risk of a faulty pillow. There are also firms that are ready to restore the old, already working pillow, providing it with a new pyromo. But this kind of zit seems highly questionable.
In addition to the airbags themselves, it may be necessary to replace the Airbag control unit in some cases. But most of the time, it's only possible to get through the firmware. The fact is that when the airbags are actuated, it is written that the system has already worked and that the simple replacement of the pillows will not restore the system's operational efficiency. Therefore, you will not be able to do without rewriting or replacing the block.
In addition to these elements, the replacement of the safety-belt preteners will be required. It is a device that, at the moment of impact, pulls the belt more strongly, choosing a slack and compensating it.
The final stage of the repair is the repair of the headset of the security. When new parts are installed, they are usually bundled and limited only by the installation of a new element.
But in many modern cars, the passenger airbag does not have a separate lid. The official dealer will only recommend the replacement of the entire front panel. But the cost of this feature is usually very high, so most often car enthusiasts prefer to repair the old one. The most common way to recover it is a torpedo torpedo or dermatine torpedo. This repair is cheap, but not aesthetic. Another option is to delay the gap area and then apply the texture to the weld. This is a more labour-intensive method and, as a result, is more costly.
When repairing the Airbag covers, it is important to keep in mind that the restored element does not interfere with the free disclosure of the airbag in the event of an accident.
Repair of airbags is not a cheap pleasure. Especially in cars where these pillows are about a dozen.
When you restore the airbag system, it is important to take precautions. First, you need to remove the minus tick from the battery. After that, it is necessary to wait 5-10 minutes for the independent power supply built into the Airbag control unit to defuse and prevent the system from being inadvertently activated during the repair process.
Second, a new airbag should always be kept to yourself. The risk of its arbitrary operation is small, but precautions will not be redundant, given that the airbag deployment rate is about 300 km/h.
Why restore airbags?
Repair of airbags is not a cheap pleasure. Especially in cars where these pillows are about or more than 10.
Many of the amateurs leave behind the repairs, limiting themselves to repairing the casing of the airbags. The lamp on the panel signalling the malfunction shall simply be removed or "deceptive".
To restore the Airbag system from an official dealer or to repair it at all, it is up to everyone, but security is not the case where it costs to save.
