2.3.5. System of additional safety (SRS)
Enter number of the devices and components forming system of additional safety (SRS):
- Two lobbies (frontal) and lower (knee) driver's safety cushions. The module of the main frontal driver's safety cushion is placed in a nave of a steering wheel, the lower pillow is built in in the dashboard at the level of the driver's knees. The safety cushion of the forward passenger is built in in the right part of the dashboard of the car. The locations of pillows are marked with the precautionary inscriptions "SRS AIRBAG";
- The sensors of the directed overloads working at strong front blow;
- Electronic system of self-diagnostics which at the included ignition provides continuous testing of sensors of overloads, the control unit, gas generators of pillows and a connecting electrical wiring of the corresponding chains;
- The automatic emergency natyazhitel who are built in in returnable devices of seat belts of front seats;
- The control lamp of refusals of SRS which is built in in a combination of devices;
- The independent power supply intended for duplication of function of the onboard rechargeable battery in case of its exit out of operation during collision.
In a combination of devices of the car the special control lamp intended for the warning of the driver of SRS refusals revealed by system of self-diagnostics is built in. Operation of a control lamp testifies to possible malfunctions of modules of safety cushions, or automatic emergency natyazhitel of seat belts.
Principles of functioning of safety cushions
|
|
At weak frontal collisions, side crashes, and also when capsizing the car regular safety cushions should not work. |
Sensors of the directed overloads react to excess of some extreme value which can arise at strong head-on collision. To a signal of sensors the control unit activates gas generators of safety cushions software, causing their instant filling.
During collision the seat belt holds the lower part of the trunk sitting from shift. Forward safety cushions help to prevent traumatizing the driver and forward passenger as a result of blow by their head and a thorax about a steering wheel / dashboard. The lower safety cushion is intended for prevention of injury of knee joints of the driver.
Principle of action of a driver's safety cushion
As information signals arrive on the SRS control unit from the same sensors, operation of all safety cushions happens at the same time. Nevertheless, the probability of initiation of only one of modules is not excluded, - it becomes possible when the size of the directed overloads which arose at collision was on the verge of the range of sensitivity of sensors. In this case seat belts provide rather reliable protection of the driver and forward passenger while the effect of operation of pillows is minimum.
Right after operation and performance by pillows of the functions gas from them is produced that allows the driver to keep the review and to manipulate freely all governing bodies of the car.
The full duration of process takes with sensors of overloads before production of gas from pillows no more tenth fraction of a second the moment of giving of a signal. Operation of modules happens so quickly that the human ear simply is not capable to apprehend cotton of gas generators when filling pillows.
After operation of safety cushions the volume of interior of the car looks slightly smoke-filled because of dispersion of a suspension of fine powder which usually pours covers of the put pillows. People with a disease of respiratory organs can feel a certain discomfort from the gaseous products which are contained in air allocated by gas generators of pillows.
Order of functioning of a control lamp of refusals of SRS
The control lamp of SRS is built in in a combination of devices of the car (see the Part the car Equipment, an arrangement of devices and governing bodies).
At inclusion of ignition (the ignition key is turned in position of ON) there is a short-term operation of a control lamp confirming serviceability of its functioning.
At refusal of a lamp of switching off after implementation of start of the engine, or at its operation during the movement the car follows at the first opportunity to drive away on HUNDRED KIA, - serviceability of operation of the SRS components at accident cannot be in this situation guaranteed.
Automatic emergency natyazhitel of seat belts
Emergency automatic natyazhitel equipped returnable devices of three-anchor seat belts of front seats. Are put by Natyazhiteli in action on a signal of sensors of the directed SRS overloads during head-on collision and provide instant selection of a weak point of belts therefore straps of the last densely cover a body sitting, considerably increasing degree of protection of the driver and forward passenger.
Natyazhitel is built in in assembly of the returnable mechanism of a belt. The order of use of such belts is similar to an order of use of the belts of a usual design equipped with inertial returnable devices. The mechanism of operation of a natyazhitel is absolutely opaque to the user and does not demand from the last any additional skills and knowledge.
Activation of natyazhitel happens only at considerable frontal overloads. Operation of modules is followed by loud cotton and insignificant smoking.
|
|
The smoke which is emitted at operation of natyazhitel is safe for health of the person, however at direct inhalation can cause irritation of mucous membranes. |
As well as in case of safety cushions, modules of emergency natyazhitel are calculated on single operation and after that are subject to replacement assembled with belts, - address on the company HUNDRED companies KIA. Operation of emergency natyazhitel of seat belts is demonstrated by the inscription "REPLACE BELT" applied on the label which is moving forward from a belt guide, - the vyprastyvaniye of the same label testifies to excessive stretching at blow of belts of a usual design.