KIA RIO

Since 2000 of release

Repair and car operation

16.27. Safety pillows (SRS)

THE GENERAL DATA

On cars the auxiliary system of safety (SRS – Supplemental Restrain System) more known as safety pillows is established. The system consists of the gauges established from the forward party of the car, pillows of safety and the management and diagnostics block. On the car the system of pillows of safety of type HAE-3 is established. The system can be established in various executions DAB + 2BPT, DAB + PAB + 2BPT, DAB + PAB + 2BPT + 2FSAB (DAB – a pillow of safety of the driver, PAB – a pillow of safety of the forward passenger, BPT - натяжитель a seat belt, FSAB – a lateral pillow of safety).

SRS consists from:

      – The air chamber from outside the driver, located in the centre of a steering wheel and containing the curtailed pillow and the block gas generator;
      – The air chamber from outside the forward passenger, located in the panel of devices and containing the curtailed pillow and the block gas generator;
      – Lateral air chambers located in backs of the driver and the forward passenger both containing the curtailed pillows and the block gas generator.

The block of management SRSCM is located on a car floor under a radiator of a heater and supervises system of pillows of safety and includes:

      – акселерометр which defines car delay;
      – The spiral wire (spring) located in a steering column;
      – Electric chains and sockets;
      – The knee buffer located under a steering column.

The spiral wire transmits a signal irrespective of steering wheel position.

The moment of collision defines block SRSCM on the basis of the information from акселерометра which constantly supervises car acceleration.

Deployment of a pillow of safety occurs at front or nearly so a head-on collision to the moderate or big effort.

Pyrotechnic газогенератор will transform an operating electric signal to a signal поджига therefore the powder decays, inflating a bag of a pillow of safety.

For service of pillows of safety or components SRS specially trained personnel should be supposed only. At service SRS it is necessary to show extreme care to avoid травмирования the personnel at unapproved expansion of pillows of safety of the driver or the forward passenger.

Safety measures

At infringement of sequence of switching-off or service of system of pillows of safety can occur unapproved expansion of pillows of safety and drawing of serious physical injuries. Also, not qualified service of system of pillows of safety can lead to that the pillow of safety will not work at collision.

Before service performance, including removal or installation of elements of system, carefully carry out following recommendations.

Before service of system of pillows of safety be convinced that has passed not less than 30 with the ambassador of deenergizing of ignition and a detachment of a wire from the negative plug of the storage battery. The system of pillows of safety is equipped by an emergency energy source which allows to develop pillows of safety in case of a detachment of wires from the storage battery at failure. Time during which the emergency energy source provides with energy system of pillows of safety, makes 150 мс.

At a detachment of a wire from the negative plug of the storage battery memory of hours and sound systems is erased. Before the work beginning take the information from sound systems. After the termination of works establish time for hours and spend repeated installation of sound systems.

Signs of failure of system of air cushions of safety are difficult for checking up, so diagnostic codes become the most important source of the information by search of malfunctions.

By search of malfunctions of system of air cushions of safety before a detachment of the storage battery check up the codes of malfunctions brought in memory.