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System of additional safety (SRS)

The number of devices and components that form the system of additional safety (SRS) comprises:

• Two front (front) and lower (knee), driver airbag. The module main driver frontal airbag is placed in the hub of the steering wheel, the bottom cushion is mounted in the instrument panel on the driver's knee level. The front passenger airbag is mounted in the right side of the instrument panel of the car. Locations marked with warning labels pillows ?�SRS AIRBAG?�;
• Direction sensor overload triggered during significant frontal collisions;
• Electronic self-diagnostic system, which is when the ignition sensor provides continuous testing overload Control Unit, gas generators and airbag wiring connecting the respective circuits;
• Automatic emergency tensioners mounted in the return device front seat belt;
• The indicator lamp failure SRS, built in in the instrument cluster;
• Self-contained power supply, designed to duplicate the function of on-board battery in the event of its failure during a collision.

In dash car mounted a special warning lamp is designed to warn the driver identified self-diagnostic system failure SRS. Operation of a control lamp testifies to possible malfunction of the airbag modules or automatic emergency pretensioners.

The principles of operation of the airbag

With weak frontal collisions, side collisions, and a rollover of an automobile air bags do not have to operate.

Sensors designed to respond to accelerations exceeding a certain limit, which may occur during a severe frontal collision. At a signal from the sensor control unit activates the airbag gas generators, causing their instant content.

During the collision the seat belt holds the offset from the lower torso sitting. Front airbags help prevent injury to the driver and front passenger as a result of the impact of the head and chest against the steering wheel / dashboard. Lower air bag is designed to prevent damage to the knee of the driver.

The operating principle of the driver's air bag

Since the information signals fed to control unit SRS from the same sensors, actuation of the airbag occurs simultaneously. Nevertheless, there is a possibility of initiation of only one of the modules - so it is possible, when the magnitude of the collision arising directed accelerations on the verge of the range of sensor sensitivity. In this case, the belts provide sufficient protection for the driver and front seat passenger, while the effect of the airbags are deployed is minimized.

Immediately after the operation and performance of its functions, the gas cushions are produced, allowing the driver to keep an overview and freely manipulate all vehicle controls.

The total duration of the process from the moment the sensor signal overloads before the release of the gas from the airbag takes less than a tenth of a second. Operation of the modules takes place so fast that the human ear can not perceive a cotton pillow when filling gas generators.

After triggering the airbag volume vehicle interior looks a little smoky due to spraying a slurry of fine powder, which is usually poured by a shell composed of pillows. People with respiratory disease may experience some discomfort from airborne gaseous products allocated gas generators of pillows.

The functioning of a control lamp of refusals SRS

SRS warning lamp is mounted in the instrument cluster of a vehicle (see. Some car equipment, arrangement of devices and controls).

When you turn on the ignition (ignition key in position ON) occurs short-term operation of a control lamp, confirming serviceability of its functioning.

In case of refusal from the lamp off after the engine is started, or when it is activated while driving a car should be at the first opportunity to drive away in the workshop KIA, - serviceability of operation of components SRS in an accident in this situation can not be guaranteed.

Automatic emergency tightener

Emergency automatic tensioners fitted reengaging trehankernyh front belts. Tensioners are activated by the signal sensor directed overloads SRS during a frontal collision, and provide instantaneous sample slack belt, causing the straps tightly embrace the body of the last sitting, greatly increasing the degree of protection for the driver and front passenger.

Tensioner assembly is mounted in the belt return mechanism. The procedure for using such belts similar to the manner of use belts of conventional design, equipped with inertial returnable devices. The mechanism of operation of the tensioner completely opaque to the user and does not require any additional latest skills and knowledge.

Tensioners Activation occurs only when a significant front overloads. Triggering module is accompanied by a loud bang and low smoke generation.

Eye-catching tensioners when triggered smoke is safe for human health, but with the direct inhalation can cause irritation of the mucous membranes.

As in the case of airbag modules of emergency tensioners are designed to fire only once and must be replaced after such assembly belts, - refer to the company's SRT brand KIA. On the functioning of the emergency belt tensioners The inscription ?�REPLACE BELT?�, stamped on the label is pulled out of the belt guide - vyprastyvanie the same label indicates excessive tension on impact belts of conventional design.