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Airbags (SRS)

On cars the auxiliary safety system (SRS - Supplemental Restrain System) better known as airbags. The system consists of sensors mounted on the front side of the vehicle, and the airbag control unit and diagnosis. By car airbag system type HAE-3. The system can be installed in a variety of designs DAB 2BPT, DAB PAB 2BPT, DAB PAB 2BPT 2FSAB (DAB - driver airbag, PAB - front passenger airbag, BPT - belt tensioner, FSAB - side airbag).

SRS comprises:

- Air bag on the driver side, in the center of the steering wheel and containing a folded cushion and a gas generator unit;
- Airbag on the passenger side, located in the instrument panel and containing a folded cushion and a gas generator unit;
- Side airbags located in the backside of the driver and front passenger, and containing the folded airbag and gas generator unit.

The control unit SRSCM located on the floor of the car under the radiator and heater controls the airbag system and includes:

- An accelerometer that detects vehicle deceleration;
- Spiral wire (spring), located in the steering column;
- The electrical lines and connectors;
- Knee bolster located below the steering column.

Coiled wire transmits a signal regardless of the position of the steering wheel.

The moment of collision SRSCM unit determines, based on information from the accelerometer, which continuously monitors the acceleration of the vehicle.

The deployment of the airbag takes place in a frontal or near-frontal collision with a moderate or great effort.

The pyrotechnic gas generator converts the electrical signal to a control signal to ignite, resulting decomposed powder, bag inflating airbags.

To service the air bag or SRS components should be allowed only by specially trained personnel. When servicing the SRS is necessary to exercise extreme caution to avoid personal injury when airbags deploy unauthorized driver or front passenger.

Safety measures

If you violate shutdown sequence or services airbag system can occur unauthorized deployment of airbags and serious personal injury. Also, improper maintenance of the airbag system may lead to the fact that the airbag will not work in a collision.

Before performing maintenance, including the removal or installation of elements of the system, carefully follow these recommendations.

Before servicing the airbag system, make sure that it has been at least 30 seconds after the ignition is turned off and disconnect the wire from the negative terminal of the battery. The airbag system is equipped with an emergency source of energy, which you can deploy the airbag in the event of disconnecting the wires from the battery when the crash. The time during which the emergency source of power provides energy to the airbag system is 150 ms.