2.2.2. System of additional safety (SRS)
Remember that pillows at all should not be considered as adequate replacement of seat belts. The driver and the forward passenger during movement should be fastened without fail by the belts adjusted in appropriate way (Elements of passive safety see)!
The scheme of an arrangement of elements SRS in car salon
The scheme of an arrangement of precautionary labels SRS
Forward face-to-face and lateral pillows of safety concern elements SRS and also emergency натяжители seat belts. Safety pillows provide additional protection of the driver and the forward passenger at strong directed front (face-to-face pillows) or onboard (lateral pillows) the overloads arising at emergency collisions of the car.
Emergency натяжители provide instant sample of a weak point of seat belts of forward seats at the directed face-to-face overloads.
The scheme of an arrangement of elements SRS — see an illustration the Scheme of an arrangement of elements SRS in car salon.
Modules of all elements SRS (pillows of safety and emergency натяжителей) are not subject to a reuse and after operation should be replaced without fail.
At ignition inclusion there is a short-term operation of control lamp SRS (AIR BAG) on an instrument guard of the car. During activation of a lamp the module of self-diagnostics polls a condition of components of system. If any infringements during diagnostic interrogation does not come to light, the control lamp should go out after approximately 7 seconds.
On all equipped with pillows of safety cars are established the special labels warning the driver and passengers about necessity of observance of corresponding safety measures (the Scheme of an arrangement of precautionary labels SRS see an illustration).
- Forward pillows of safety are not intended for operation at lateral and back blows, and also at car overturning. Besides, the system design provides activation of pillows of safety only in case of excess by the directed face-to-face overloads of some block of management of threshold value put in memory. Told once again proves the statement that presence in the car of pillows of safety does not give the grounds scornfully to concern the requirement of obligatory use of seat belts.
- The maximum level of the protection provided with face-to-face pillows and seat belts is reached at vertical position of the sitting. It is necessary to remember also that filling of pillows of safety occurs during very short time and at leaky pressing of a seat sitting to a back there is a big risk of reception by it of traumas at the expense of rejection by instantly filled pillow to a back, — try during movement as it is possible to nestle more densely to a back on a back of a seat and to occupy as much as possible removed from a steering wheel / of the panel of devices position. Do not forget to be fastened by a seat belt.
- Try to hold at driving a steering wheel for its external rim and not to get elbows in ступичный sector in which the module of a driver's pillow of safety is fixed.
- Do not transport children of younger age in a lap and without fail fasten their seat belts. In case of need use children's seats of a special design (Elements of passive safety see).
- Lateral pillows of safety are not intended for operation at face-to-face and back blows, and also at insufficient intensity of the overloads arising at lateral blows or overturning of a vehicle.
- Remember that operation of lateral pillows of safety occurs almost instantly, — try not to put out during movement of a hand in a window, and also not to incline a head sideways and strongly not to take aside an external knee. Do not forget to be fastened by a seat belt.
- Back passengers equipped with lateral pillows of safety of cars not should bend too strongly during movement forward, placing a head or hands in a scope of pillows. Special attentiveness is demanded by transportation in the car of children of younger age, — watch, that during movement children were in at стегнутом a condition, try to stop during time any pranks.
- Do not put on covers the safety equipped with lateral pillows forward seats.
- At car sale it is necessary to inform as much as possible full the buyer on places of placing of elements SRS and to acquaint it with materials of the given section of the Management.
Face-to-face pillows of safety
Modules of face-to-face pillows of safety are built in in hub a steering wheel part (a driver's pillow) and the right top section of the panel of devices, over a ware box (a passenger pillow) (the Scheme of an arrangement of elements SRS in car salon see an illustration). Activation газогенераторов face-to-face pillows of safety occurs at excess by appropriate amount by the directed overloads of some threshold value. It is necessary to have in view of that activation of pillows can occur not only at a car head-on collision, no less than not at each front blow. The vehicle damage rate is not criterion of necessity of operation or failure of pillows.
Gauges of the directed overloads react to excess of some limiting value which can arise at a strong head-on collision. On a signal of gauges the management block includes газогенераторы safety pillows, causing their instant filling.
During collision the seat belt keeps from displacement the bottom part of a trunk sitting. Face-to-face pillows of safety help to prevent травмирование the driver and the forward passenger as a result of blow by their head and a thorax about a steering wheel / the panel of devices.
As signals on operation of both pillows of safety arrive from the same gauges, both pillows work simultaneously. However, the probability инициации only is not excluded by one of pillows. Such becomes possible when the size of the directed overloads which have arisen at collision was on the verge of an operation range газогенераторов. In this case seat belts provide reliable enough protection of the driver and the forward passenger while the effect from operation of a pillow of safety will be minimum.
Right after operation and performance by pillows of the functions gas from them is issued that allows the driver to keep the review and freely to manipulate all controls the car.
Full duration of process from the moment of giving of a signal before release of gas from pillows occupies with gauges of overloads fractions of a second. Operation of pillows occurs so quickly that the human ear simply is not capable to apprehend a clap газогенераторов at filling of pillows.
After road and transport incident at which there was an operation of pillows of safety, the volume of salon of the car looks slightly filled with smoke. Actually it is a suspension тонкодисперсного a powder by which covers of pillows in the combined condition are usually poured. People with disease of respiratory organs can feel certain discomfort from the gaseous products containing in air allocated газогенераторами of pillows.
- Do not place any subjects on an overlay of a steering wheel or on the right on the panel of devices. Also do not transport hand luggage and subjects of personal use in a lap, placing them in space among themselves and the module of a pillow of safety!
- Right after operations of a pillow of safety some of its components remain hot during even some time, — be careful, try not to touch a surface of the module of a pillow!
- At all do not make any unapproved experts of updating in system of an electric equipment equipped SRS the car! Isolation of electroconducting SRS is painted in bright yellow colour and should not be disconnected for lack of the skilled expert. For check of serviceability of functioning of elements SRS it is supposed to use only the special diagnostic equipment!
- Do not establish independently on the panel of devices and a steering column any additional elements of decorative furnish!
Lateral pillows of safety
Modules of lateral pillows of safety are located in the special pockets equipped in external lateral walls of forward seats, are covered outside by decorative covers and provide protection of a humeral belt and a head of the driver and the forward passenger at lateral blows and vehicle overturning.
Activation of lateral pillows of safety occurs at excess by appropriate amount by the directed overloads of some threshold value. It is necessary to have in view of that activation of pillows can occur not only at lateral blows, no less than not at each similar blow. The vehicle damage rate is not criterion of necessity of operation or failure of pillows.
Operation of pillows of safety is accompanied by loud enough clap and the small smoke emission which is not containing toxic components and not being a sign of ignition. Nevertheless, inhalation allocated газогенератором a smoke can lead to insignificant irritation of mucous membranes and cause a short fit of coughing.
Right after operations gas from pillows is automatically pitted.
Concerning lateral pillows of safety all preventions resulted above for face-to-face pillows adjusted for a site of components operate.
Automatic emergency натяжители seat belts of forward seats
The scheme of an arrangement of modules emergency натяжителей — see an illustration the Scheme of an arrangement of elements SRS in car salon.
On some models for the purpose of maintenance of additional protection of the driver / of the passenger forward seat belts are supplied by devices which at operation provide an automatic choice of a weak point of belts that helps to exclude possibility of dangerous movings of the driver and the passenger in case of road and transport incident.
Activation of pyrotechnic modules emergency натяжителей occurs at the directed overloads arising during a strong head-on collision and is accompanied by a sharp clap and insignificant дымообразованием. Emission of forward pillows of safety is simultaneously made.
At operation of the device the seat belt remains in the tense position until скоба its buckles will not be taken out from the lock of last.
Inclusion on an instrument guard of a control lamp of seat belts warns the driver about possible malfunctions in devices automatic emergency натяжителей belts, — the car should be driven away on a car repair shop for carrying out of full check SRS and performance of corresponding regenerative repair.
Concerning emergency натяжителей all preventions resulted above for face-to-face pillows adjusted for a site of components operate.
Control lamp SRS
The scornful relation to signals of control lamp SRS can lead to the most serious consequences at refusal of pillows of safety during road and transport incident!
Built in in a speedometer dial control lamp AIR BAG is included in a chain of electroconducting SRS and allows the driver to supervise any infringements of a condition of all elements of system, including satellite gauges, the block of the diagnostic gauge, modules of pillows of safety and all connecting electroconducting (the Scheme of an arrangement of elements SRS in car salon see an illustration). Serviceability of a condition emergency натяжителей is supervised by a control lamp of seat belts (see above).
At a burning control lamp operation of pillows of safety in an emergency is blocked!
Service and replacement
As already it was mentioned above, modules of all elements SRS (and emergency натяжителей) are among pillows of safety of the disposable equipment, to regenerative repair are not subject and after operation should be replaced without fail, — as a reminder on necessity of replacement of modules of pillows of safety on an instrument guard it is necessary to burn control lamp AIR BAG. Replacement of modules SRS should be made in the conditions of a car repair shop. About ways of recycling the failed components SRS it is possible to consult with experts of car-care centre.
Pillows of safety and the device of an automatic emergency tension of seat belts, practically do not require regular checks and maintenance service. However the owner of the vehicle equipped in appropriate way should remember the following:
- After operation of pillows of safety they are subject to obligatory replacement together with the block of management of system. Do not try to dismantle fulfilled pillows independently. These operations should be carried out only in the conditions of a car-care centre workshop;
- If operation of control lamp SRS specifies in refusal presence in system, it is necessary to address immediately on the nearest car repair shop Infiniti where full diagnostics and necessary regenerative repair of system will be made. Otherwise safety pillows can not work at road and transport incident and not execute the protective function;
- To works with knots of additional system of safety specially trained personnel is supposed only. It is forbidden to dismantle independently from the car of a pillow of safety and emergency натяжители seat belts. In default SRS or after emergency operation of pillows of safety and натяжителей seat belts it is necessary to address on a car repair shop for carrying out of repair or replacement of knots of system;
- Do not open modules and do not change electroconducting of systems of pillows of safety and devices of an automatic emergency tension of seat belts, — such intervention can lead to involuntary operation of pillows and натяжителей and be at the bottom травмирования of the executor or people being nearby;
- Do not make replacement of forward seats without reception of preliminary consultation on car repair shop Infiniti. Inaccurate or incorrect performance of replacement or removal of covers can lead to refusal of operation of lateral pillows of safety in case of road and transport incident;
- In 10 years from the moment of vehicle release (the certified label see the central rack from the driver's party of the car — Introduction see) it is necessary to make preventive check of a condition of components SRS.