Safety-belts, restraint systems, child restraint systems and ISOFIX child restraint systems for occupants of power-driven vehicles

Transcription

1 Translated English of Chinese Standard: GB Translated by: Wayne Zheng et al. ICS T 26 NATIONAL STANDARD OF THE PEOPLE S REPUBLIC OF CHINA GB Replace GB Safety-belts, restraint systems, child restraint systems and ISOFIX child restraint systems for occupants of power-driven vehicles 机动车乘员用安全带 约束系统 儿童约束系统和 ISOFIX 儿童约束系统 Issued on: May 07, 2013 Implemented on: January 01, 2014 Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People s Republic of China; Standardization Administration of the People s Republic of China 1

2 Table of Contents Foreword Scope Normative references Terms and definitions Technical requirements Test methods The requirements of installation in the vehicle Instructions Transitional period of the standard implementation Annex A (Informative) The numbers of articles and chapters in the standard are contrasted with those in ECE R Annex B (Normative) Installation requirements of the adult safety belt and restraint system of power-driven vehicle forward-facing seat as well as that of the ISOFIX child restraint systems Annex C (Informative) Control of production conformity control Annex D (Normative) Dummy Annex E (Normative) Test sequence Annex F (Normative) Corrosion test Annex G (Normative) Wearing and micro-slip test Annex H (Normative) Dual buckle test Annex I (Normative) Equipment diagram of retractor durability test Annex J (Normative) Equipment diagram of retractor emergency locking test Annex K (Normative) Equipment diagram of dust test Annex L (Normative) Pulley, seat, fixed part and parking mechanism Annex M (Normative) Deceleration or acceleration - time curve of pulley description Annex N (Normative) Minimum requirements of safety belt pre-retractor Annex O (Normative) Safety-belt reminder test Annex P (Informative) Instruction for use

3 Annex Q (Normative) Determination procedures of seating position H point and the actual torso angle of power-driven vehicles Translation References and Original Chinese Documents

4 Foreword Chapter 4, 5, 6 to 7 of this Standard is mandatory and the rest are recommended. This Standard is drafted according to the rules specified in GB/T This Standard replaces GB Safety-belts and Restraint Systems for Occupants of Power-driven Vehicles. The main differences between this Standard and GB : a) MODIFY the name of the standard MODIFY the name of the standard to be: Safety-belts, restraint systems, child restraint systems and ISOFIX child restraint systems for occupants of power-driven vehicles (the former name was: Safety belt and restraint system for adult occupants of power-driven vehicles). b) MODIFY the scope of application of the standard; For the M, N types vehicles; there are belts and restraint system solely used as independent equipment for the adult occupants on forward-facing or rearward-facing seats. The M, N type s vehicles are equipped with belts and restraint system solely used as independent equipment for the adult occupants on forward-facing or rearward-facing seats. The M1 type and N1 type vehicles are equipped with the child restraint system and ISOFIX child restraint system. The M1 type vehicles are equipped with seatbelt reminder. c) Retracting force The measurement requirements of retracting force with tension-reduce device are added. When measuring the retracting force under the operation condition of the tensionreduce device, the retracting force can be reduced to 0.5 N; and if the retractor assembly is equipped with tension-reduce device, before and after the durability test, the retracting force of strap shall be measured when the tension-reduce device works and doesn t work ( of this Edition). d) Dynamic performance The dynamic performance requirements of the safety belt with pre-loading device are modified. For safety belt with pre-loading device, the pre-loading device shall work in the 4

5 dynamic test ( of this Edition). The 2003 edition requirements require that under the two dynamic tests, the pre-loading device shall be tested respectively when it works and doesn t work ( of 2003 edition). The dynamic performance requirements of the safety belt with tension-reduce device are added. The tension-reduce device shall be gone through dynamic test in the operating mode ( of this Edition). The limit scope of displacement of the dummy s reference point is modified. For restraint system, when the top anchorage is installed on the seat, according to reduction and exemption rules in the GB , the displacement can be larger than value specified in b) ( of this Edition); and for harness belts, the minimum displacement specified in b) can be reduced by half [ b of 2003 edition]. The dynamic test of 2003 edition does not contain the relevant reduction and exemption rules for top anchorage of safety belt installed on the seat and the relevant regulations of harness belts. e) The test method available to take acceleration block device for dynamic test is added (5.7.5 of this Edition). In the 2003 edition, there are only contents related to deceleration block device. f) The installation requirements of safety belt and restraint system on vehicles are added (6 of this Edition). g) Annex B is added which states the installation requirements of the adult safety belt and restraint system of power-driven vehicle forward-facing seat as well as that of the ISOFIX child restraint systems. h) Annex N is added which states the minimum requirements of the safety belts and the retractor. i) Annex O is added which states the safety belt reminder device test. j) Annex Q is added which sates the confirmed program of power-driven vehicle seating position H point and the actual backrest angle, and the H point device that is described in KSO6549:1999. The technical differences between this Standard and ECE R16 regulations in the United Regulations on Safety-Belts, Restraint Systems, Child Restraint Systems and ISOFIX 5

6 Child Restraint Systems for Occupants of Power-driven Vehicles (English version) and the reasons are as follows: a) The definition of 2.10 terms in ECE R16 is modified from the children restraint to child restraint system and the definition in GB Restraint System Restraint System for Child Occupant Power-driven Vehicle is directly adopted; b) The retracting force bench test method ( of this Edition) is added, as well as the operability of the standard; c) The "Certification application" in chapter 3 of ECE R16, "Marking" in chapter 4, "Certification" in chapter 5, "Production consistency" in chapter 9, " Punishment on production inconsistency" in chapter 10, " Changes and the extension of the vehicle models or safety belts and restraint systems certification" in chapter 11, "Formal production cessation" in chapter 12, "The names and addresses of the certification test departments and administrative departments" in chapter 14, Annex 1 A " Notice of safety belt certification approval, certification extension, certification rejection, certification revocation or official cessation according to the ECE R16", Annex 1 B "Notice of certification approval, certification extension, certification rejection, certification revocation or official cessation related to power-driven vehicles belts and adult occupants restraint system according to the ECE R16", Annex 2 "The arrangement example of the certification marks" related to the contents of the certification program and certification marks was deleted. And the reason was the differences in the form of standardized system and regulatory system. Annex A describes the contrast list of the chapter and article numbers of this Standard and ECE R16 regulations. In order to be convenient, the following editorial modification was made in regulations part of ECE R16: a) "The regulations" is modified to "the standard"; b) cm 2 is modified to mm 2 ; dan is modified to N; c) The informative Annex A is added. This Standard was proposed by National Development and Reform Commission of the People's Republic of China. This Standard is under the jurisdiction of National Technical Committee of Auto 6

7 Standardization (SAC/TC 114). This Standard is drafted by: Dongfeng Motor Corporation, National Automobile Quality Supervision and Test Center (Xiangyang), China Automotive Technology and Research Center, Zhengzhou Nissan Motor Co., Ltd, China Quality Certification Center. The main drafters of this Standard are: Li Sanhong, Yu Boying, Yang Bin, Wang Changjiang, Zhang Shangjiao, Wang Sheng, Li Weijing, Li Qianghong, Wang Dongcheng, Qu Yanping. This Standard replaced GB All previous publishing situation of GB are as follows: GB

8 Safety-belts, restraint systems, child restraint systems and ISOFIX child restraint systems for occupants of power-driven vehicles 1 Scope This Standard stimulates the definitions of the car safety belts, restraint systems, the child restraint system and ISOFIX child restraint system, together with the technical requirements and test methods. This Standard applies to: a) For the M, N type s vehicles; there are safety belts and restraint system solely used as independent equipment for the adult occupants on forward-facing or rearward-facing seats. b) The M, N type s vehicles are equipped with belts and restraint system solely used as independent equipment for the adult occupants on forward-facing or rearward-facing seats; c) The M1 type and N1 type s vehicles are equipped with the child restraint system and ISOFIX child restraint system. d) The M1 type s vehicles are equipped with seatbelt reminder. 2 Normative references The articles contained in the following documents have become this Standard when they are quoted herein. For the dated documents so quoted, all the modifications (including all corrections) or revisions made thereafter shall be applicable to this Standard. GB Motor vehicles--symbols for controls, indicators and tell-tales GB/T Textiles - Tests for color fastness - Color fastness to artificial light: Xenon arc fading lamp test GB The protection of the occupants in the event of a frontal collision for passenger car GB The interior fittings of passenger car GB The strength of the seats and their anchorages of passenger vehicles 8

9 GB Safety-belt anchorages, ISOFIX anchorages systems and ISOFIX top tether anchorages for vehicles GB/T Classification of power-driven vehicles and trailers GB Restraining devices for child occupants of power-driven vehicles ISO 6487: 2002 Road vehicles -- Measurement techniques in impact tests -- Instrumentation ISO 17373: 2005 Road vehicles -- Sled test procedure for evaluating occupant head and neck interactions with seat/head restraint designs in low-speed rear-end impact ASTM D573 Standard Test Method for Rubber Deterioration in an Air Oven ASTM D735 Specification for Elastomer Compounds for Automotive Applications ASTM D736 Method of Test for Low-Temperature Brittleness of Rubber and Rubber-Like Materials 3 Terms and definitions For the purpose of this Standard, the following terms and definitions shall apply. 3.1 Safety belt, belt There are straps, buckles, regulating parts and attachments which fix them inside the power-driven vehicle, used for reducing the total damage degree during the sharp deceleration and collision of vehicles by restricting the movement of the wearer's body, including energy absorption or the restraint of the retraction straps Lap belt The two-point seats belt cross in front of the wearer s pelvis Diagonal belt The safety belts obliquely cross from the hip to the front chest to the other side of the shoulder Three-point belt The seatbelts consists of a lap belt and a diagonal belt. 9

10 3.7 Reference zone As for the symmetry of the H point, the space of the two 400 mm distance vertical planes will be decided by the head type equipment described in GB Annex C rotating from the vertical position to horizontal position. 3.8 Airbag assembly The device used to assist the safety belts and restraint systems in power-driven vehicles will automatically spread a flexible structure on the event of a serious collision, by compressing the gas inside to limit the contact force of vehicle occupant s one or more parts with the parts inside the power-driven vehicle. 3.9 Passenger airbag The airbag assembly used to protect passengers other than the driver on the event of head-on collision Child restraint system CRS Straps with bracer buckle or corresponding soft parts, adjusting device, connecting device, and auxiliary device (such as carrycot (portable berth), baby carrying device, auxiliary seat and/or collision protection device], and the device that can be solidly placed in power-driven vehicles. It is designed to alleviate the damage to the wearer by limiting the movement of the wearer's body in the case of collision accident or sharp deceleration of vehicles Rearward-facing The opposite direction of normal driving direction of vehicles 3.12 Attachments Components of safety belt assembly, including necessary fastening components used to install it on the safety belt anchorage. 11

11 3.13 Energy absorber Independent energy absorption device or the kind combined with strap, which is component of the safety belt assembly Retractor Device used to retract all or part of the safety belt strap Non-locking retractor (type 1) A retractor which can pull the entire strap out with small force and the volume pulled being the nonadjustable Manually unlocking retractor (type 2) A retractor that user can manually open the locking mechanism of the retractor in order to obtain the required amount of pulled strap, and when stop operation it can automatically lock Automatically locking retractor(type 3) The strap can be pulled out according to the required length and when the buckle is locked, the length of the retractor can be adjusted automatically according to the shape of the wearer strap and if the wearer does not mean to unlock, the strap cannot be further pulled out Emergency locking retractor(type 4) Under normal driving conditions, the retractor without limiting the safety belt wearer's freedom of movement and is equipped with length adjustment element which can automatically adjust the length of the strap according to the wearer's body and there is a locking mechanism will work by the following factors in an emergency; a) The vehicle deceleration (sole-sensitivity); b) The vehicle deceleration, strap combination of movement or other automatic factors 12

12 (compound sensitivity) Emergency locking retractor with higher response threshold (type 4N) The emergency locking retractor used on M2, M3, N1, N2, and N3 types (See GB/T ) vehicles and equipped with higher response limit value Belt adjustment device for height The device that makes the height of guiding part on the safety belt can be adjusted according to the needs of the wearer and the position of the seat adjusting device, and such device can be seen as part of the safety belt or as a safety belt anchorage part Belt anchorages The vehicle structure component or seat structure, or other parts of the vehicle used for fixing safety belt assembly Vehicle type as regards safety-belts and restraint systems Power-driven vehicle type, it is in vehicle structure, car seat structure, or the size, shape, part material etc. of any part connected to safety belts, restraint system of vehicles no substantial difference Restraint system The kind of system that is used for specific vehicle types or being defined by factory and approved by examination organization and equipped with a seat or a belt which is fixed in the vehicle through the appropriate method, in addition, it also includes the element to shorten the hurts to the wearer when the vehicle suddenly slow sown Seat The seating facility for an adult occupant to seat which has complete decoration and is integrated with the vehicle structure as a whole and contains a separate seat or a bench seat 13

13 3.25 Locking system of the scat The device which can keep the seats and its parts in a certain using location 3.26 Enclosed buckle-release button The ball with a diameter of 40 mm can open the impossible open the buckle button of the buckle lock Non- enclosed buckle-release button The ball with a diameter of 40 mm can open the buckle button of the buckle lock Tension-reduce device The device that can be combined with the retractor together, and when the safety belt is buckled well, it can reduce the tension of strap automatically, and when the safety belt is released, the device will automatically shut down Internationally universal child restraint system fixture The device that makes child restraint system connected to the vehicle. Including two rigid fastening point of the vehicle, and two corresponding rigid connection devices on the child restraint system, and the device keeping the child restraint system from turning over 3.30 ISOFIX child restraint system ISOFIX The child restraint system with internationally universal child restraint system fixture (ISOFIX) It is a child restraint system meeting the requirements of GB And it must be connected to the ISOFIX fixed system meeting the requirements of GB ISOFIX position The positions are allowed to install the following child restraint systems: a) Universal forward-facing child restraint system of ISOFIX; b) Semi-universal forward-facing child restraint system of ISOFIX; 15

14 Guidance device Assist staff in installing the device of ISOFIX child restraint system, making the ISOFIX attachments of ISOFIX child restraint system properly aligned to ISOFIX low anchorage through physical guide function to achieve easy connection ISOFIX marking fixture Used to give instruction to ISOFIX CRS user about ISOFIX position in the vehicle and identification mark of corresponding ISOFIX anchorage 3.38 Child restraint fixture CRF One of the device of which size class is contained in the 7 size classes specified in B.3.4 of Annex B. Specific reference to the device of which the size is given in Figure B.4-B.10 of Annex B; used to check whether size class of child restraint system is suitable for ISOFIX position in the vehicle. In GB , CRF described as ISO/F2 (B) in Figure B.5 is used to check position of ISOFIX anchorages system and size adaptability Safety-belt reminder The system that warns driver about occupants who are not wearing safety belt, it consists of detector that detects whether safety belt is worn and two levels of driver warning (the first level warning and the second level warning) Visual warning Visual signal (visual display of light, flash, sign or information) warning Audible warning Acoustical signal warning 3.42 First level warning The visual warning that is activated when driver is not wearing safety belt after the ignition 17

15 corrosion visible to experienced inspector shall occur after corrosion test specified in 5.2 is performed Rigid members for absorbing energy or bearing and transmitting load shall not be made of brittleness material Rigid members and plastic parts of safety belt shall be installed in appropriate position with proper method which ensures the normal use of vehicle without being pressed under sliding seat or crushed by vehicle door. Cold shock test specified in shall be performed on any part which is not consistent with above requirements. If any visible crack can be seen on plastics covering or protective layer of rigid members after test, plastic parts shall be removed and security of the remaining parts shall be inspected; if the remaining parts are safe without visible crack, further evaluation shall be performed in accordance with test requirements specified in 4.2.2, and Buckle Buckle shall be able to eliminate any possibility of mis-operation; particularly, the buckle shall be placed in status free from partial mesh; the method for opening buckle shall be clear; for buckle parts that may contact body of wearer, a minimum contact area of 2000mm 2 and a minimum width of 46mm shall be ensured within 2.5mm from the contact surface. For buckle of harness belt, if the contact area between the buckle and the body of wearer is within 2,000mm 2-4,000mm 2, the requirements are considered to be met Whatever position the vehicle is, the buckle shall be remained locked even no force is applied on it. The possibility of occasionally opening or opening buckle with a force of less than 10N shall not exit. The buckle shall be easy to use and lock; when no force is applied on it or the force specified in is applied on it, the Buckle shall enable wearer to open it with simple motion by one hand from certain direction; in addition, when the safety belt assembly is used in front row outward seat (except for harness belt), the wearer shall also enable to open the buckle with simple motion by one hand from certain direction. The buckle shall be opened by pressing button or certain similar device. When button is in the actual opening position, and projected on the plane perpendicular to initial button movement direction, the surface on which the opening force is applied shall meet the following size requirements: 19

16 e) When the retractor controlled by external signal or power source, it shall be automatically locked by deactivating or interrupting the signal or power source achieved by the structure. If only one sensibility is controlled by external signal or power source, and the driver will be noticed about the failure of signal or power force by acoustic and optical signal, such composite sensitive retractor does not need to meet this requirement Composite sensitivity is obtained when tested in accordance with 5.6.2, emergency locking retractor including belt-sensing device shall meet specified requirements; the retractor shall be locked when the strap acceleration measured in the drawing-out direction is not less than 2.0g For test stated in and , the generated drawing-out amount of strap starting from the original length given in shall not exceed 50mm before the retractor is locked. For test stated in b), the retractor shall not be locked after drawing strap out by 50mm starting from the original length given in If retractor is part of lap belt, retracting force of strap shall not be less than 7N when measurement is performed on the free length between dummy and retractor in accordance with If retractor is part of diagonal belt, retracting force of strap shall be in a range of 1N-7N when performing similar measurement; except when tension-reduce device is equipped. In this case, only the tension-reduce device is in operation mode, the retracting force may be reduced to 0.5N. If the strap passes through the guidance device or guide pulley, retracting force shall be measured on the free length between the dummy and the guidance device or guide wheel; If the retractor assembly has a manual or automatic device to prevent the rolling back of strap, the retracting force shall be measured prior to the functioning of this device. If the retractor assembly has tension-reduce device, when assessing these requirements according to before and after the durability test, strap retracting force described above shall be measured under functioning or malfunctioning of the tension-reduce device ,000 times of drawing-out and retracting test shall be carried out according to the method specified in Then, the retractor shall be conducted corrosion test specified in 5.2 and dust test specified in Finally, 5,000 times of drawing-out and 23

17 position stipulated in 5.7.2d). b) Displacement and locking systems on the vehicle shall still make the passenger in seat leave the vehicle by means of the manual operation after the dynamic test As part of waiver of the above provisions, for restraint system, when upper anchorage is installed on the seat, according to waiver provisions in of GB , the displacement can be greater than value specified in b) Load after wearing treatment For two samples after treatment prescribed by , the rupture strength shall be evaluated by and 5.5, whose strength value shall be at least equal to 75% of the average rupture strength values of the strap without wearing treatment, and shall not be less than the predetermined minimum load value of test-piece. Rupture strength difference between the two samples may not exceed 20% of the highest measured strength. For Program 1 and Program 2, only CONDUCT rupture strength test for strap sample according to For Program 3 connecting with metallic elements together, CONDUCT rupture strength test for strap according to Components of the safety belt conducting wearing treatment program are shown in Table 1. "X" shows the applicable treatment program to that component. Each program shall use new sample. 27

18 After light treatment, straps shall be placed at a temperature of 20 ±5 and relative humidity of 65%±5% for at least 24h. If not tested immediately after treatment, the test-piece shall be stored in a sealed container until the test starts. MEASURE the breaking load within 5min from removing the strap out of treatment environment or container Low temperature treatment Straps shall be placed at a temperature of 20 ±5 and relative humidity of 65%±5% for at least 24h Then, the strap shall be placed on the plane of cryogenic box with a temperature of -30 ±5 for at least 1.5h. And then FOLD the strap and PRESS a 2kg heavy block, which is pre-cooled to -30 ±5, on the folded location. PLACE in the same cryogenic box for 30min, REMOVE the heavy block, and MEASURE the breaking load within 5min from removing the strap out of cryogenic box High temperature treatment Straps shall be placed in heating cabinet with a temperature of 60 ±5 and relative humidity of 65%±5% for at least 24h MEASURE the breaking load within 5min from removing the strap out of heating chamber Water immersion test Completely IMMERSE the strap in the distilled water which has been injected slight wetting agents with a temperature of 20 ±5 for 3h, and wetting agents can be used in any test strap fibers MEASURE the breaking load within 10min from removing the strap out of the water Wearing treatment Wearing treatment shall be conducted for all straps connected with rigid members, for all adjusting devices whose strap slip value is less than half of the specified value in the micro-slip test, there is no need to conduct the wearing treatment specified in the Program 1 of a). The setting of the test equipment basically maintains the relative position between strap and contact area The sample shall be kept for at least 24 hours in the environment with temperature 30

19 pulley and its connected vehicle structure is progressively increased by increment of 200 kg; and at this point, 28 kg inertial block shall be added with each increment of 200kg. Difference between total mass of pulley, vehicle structure, inertial block and nominal value of calibration test shall not exceed ±40 kg at any time; when stopping device is calibrated, the pulley speed shall be 50 km ± 1 km/h, and the stopping distance shall be 400 mm±20 mm. b) Device for accelerated test Drive mode of pulley shall ensure that the overall speed change ν is km/h. The pulley shall be remained horizontal in acceleration process. Acceleration of pulley shall be achieved by instruments meeting the following provisions: Acceleration curve of pulley (including inertial block) shall be within shadow area in the figure of Annex M, and above the specified line segment [(10g, 5 ms). (20g, 10 ms)] Define the start time of collision (T0) in accordance with the acceleration level of 0.5g specified in ISO 17373: Difference between total mass of pulley, vehicle structure, inertial block and the nominal value of calibration test shall not exceed ±40 kg at any time. When device for acceleration test is calibrated, the overall speed change ν of pulley is km/h. In addition to meeting the above requirements, the testing agency shall use the pulley specified in L.1of Annex L, mass of which exceeds 380 kg Pulley speed, retardation or acceleration of pulley, amount of forward movement of dummy and the chest speed at the position 300mm in front of dummy chest at the moment before collision shall be measured (the stopping distance shall be calculated for the pulley for retardation test). By integral of the recorded retardation or acceleration of pulley, the speed change of pulley is obtained. Distance for pulley speed change when a speed of km/h is first reached can be obtained by double integral of recorded retardation of pulley After collision, visually CHECK safety belt assembly or restraint system and rigid parts without opening buckle, in order to make sure whether the failure or rupture phenomenon occurs. For restraint system, also CHECK whether the vehicle structural parts connected to pulley have visible permanent deformation after test. If deformation 38

20 B-type lap belts used as specified in Annex N allow the use of Br3-type lap belts. However, for the seating positions (other than those in the front row) on the lateral of vehicles of N1 type (that are marked with the subscript a in Table N of Annex N, when a channel that allows the occupants to reach other positions of vehicles is permitted between the seat and the nearest side wall of the vehicle, the installation of Br4m or Br4Nm-type lap belts are allowed. When all the vehicle doors are closed, if the distance (which is measured at the position of Point R and perpendicular to the longitudinal central plane of vehicle) from the side wall to the vertical longitudinal plane through the centerline of seat is greater than 500mm, the space between the seats and side walls of vehicles will be considered as a channel For the vehicles where the installation of any safety belt is not required, the manufacturer can also choose any type of safety belt or restraint system designed and produced according to the standard. The lap belts for the seating positions (whose lap belts shall be installed as specified in Annex N) can be replaced with the A-type safety belts allowed in Annex N For the three-point belts with multiple retractors, at least one retractor shall be used for the diagonal belt Except for the M1 type vehicles, the 4N-type emergency locking retractors (3.14.5) can be used to replace the 4-type emergency locking retractors in the positions where the installation of 4-type retractors is unsuitable and the installation of 4N-type ones meet the requirements as considered by the inspection agency in charge of tests For the front seats on the lateral of vehicle and in the middle of vehicle (that are marked with the subscript b in Table N.1 of Annex N), when the windshield is located beyond the reference area specified in Annex C of CB , it is enough to use the lap belts specified in Annex N. As for the safety belts, according the methods specified in Annex C of GB , if the windshield and the test equipment can contact with each other in a static state, then the windshield will be considered as the part of reference area For the seating positions marked with the subscript c in Table N.1 of Annex N shall be provided with the three-point belts specified in Annex N. Unless any of the following 41

21 installed in the second ISOFIX position. If the rearward-facing device can not be installed on the second row of seats of the vehicle in the second ISOFIX position due to the design, then any one of six devices is allowed to be installed in any position of the vehicle. 6.4 Safety-belt reminder The driver s position for the M1 type vehicle shall be furnished with a safety belt reminder in compliance with the requirement of the standard, and if the reminder of another type of vehicle provided by the vehicle manufacturer is installed in the driver s position, the safety belt reminder can also be approved according to the requirements of the standard. If the requirements of are met, the safety belt reminder shall be allowed to be shut down The general requirements on the safety belt reminders: a) The visual warning signal shall be placed in the places that the driver can see and identify easily in daylight, and it can be distinguished from other warning signals. If the visual warning signal is red, an identical symbol as specified in of GB shall be used (see Figure 2). or Figure 2 The schematic diagram of visual warning signals b) The visual warning signals shall be continuous or intermittent signals. c) The audible warning signals shall be continuous or intermittent acoustical signals or language information, and if the language information is used, the manufacturer shall ensure that the language warning shall be of the language in the vehicle sales market. The audible warning signal can consist of more than one beats. d) The visual warning signals shall be easily identified by the driver When the driver does not fasten the safety belt and the ignition switch is turned on, the first level warning signal shall at least be with a visual warning signal lasting for 4s or longer The activation of the first level warning signal shall be tested according to the testing procedure as defined in O.1 of Annex O As for the second level warning signal, when the safety belt is not fastened, and 45

22 As described by the automobile manufacturer, the seat positions or ISOFIX positions for installing the child restraint systems or the ISOFIX child restraint systems shall meet the provisions of B.2 and B.3. In any restrictive conditions, the positions, which can be used simultaneously near the positions of the ISOFIX child restraint systems and /or between the ISOFIX positions and the adult s seating positions, shall be described in Table B.3. B.2 The installation provisions of the universal child restraint systems fixed with the vehicle safety belts B.2.1 General provisions B The test procedures and performance requirements included in B.2 are used to determine the adaptability of the seat position to the installation of the universal child restraint systems. B The test can be conducted on the vehicle and on the representative parts of the vehicle. B.2.2 Test procedures B ADJUST the seat so that it is in the back and the lowest position. B ADJUST the backrest angle so that it is in the position designed by the manufacturer. If not specified, the backrest angle shall be adjusted to 25 or is in the nearest position of 25. B Keep the fixed part of the shoulder in the lowest position. B PLACE the cotton fabrics on the backrest and seat cushions. B PLACE the fixtures (as described in Figure B.1) on the vehicle seats. B If the seating positions are suitable for the forward-facing and rearward-facing universal child restraint systems, the test will be conducted in the procedures described in B.2.2.6a) and B B successively. If the seating positions are only suitable for the forward-facing universal child restraint systems, then the test will be conducted in the procedures described in B.2.2.6a) and B B successively, and the method of safety belts wound around the fixtures is required as follows: a) Wind the fixtures with safety belts and then lock the buckles in the correct positions as shown in Figure B.2 or B

23 b) Wind lower part of fixture with the lap belt of safety belts in the correct position as shown in Figure B.3, with a radius of 150mm, and then lock the buckle. B Make the center line of fixture be within ± 25 mm range of seating position s center line and parallel to the longitudinal centerline of vehicle. B Make the strap in a non-relaxed state, using a suitable force to eliminate the relaxation of strap while not make it be too much tension. B A force is applied to the front center position of the fixture to push it backward, the force is 100 N ± 10 N with a direction parallel to the lower surface of fixture, and then removes the force. B A force is applied to the top center position of the fixture to press it down vertically, the force is 100 N ± 10 N, and then removes the force. B.2.3 Requirements B The base seat position of fixture shall both contact the front and rear surfaces of seat cushion. If it can not reach the required contact due to the reason of safety belt coming into slot, the slot can be covered to be parallel and level with the bottom surface of the test fixture. B The lap belt of safety belt shall be at the end of the lap belt line and contact with both sides of the fixture (see Figure B.3). B If the adjustment according to the instruction of B.2.2.1, B and B cannot meet the above-mentioned requirements, please readjust the seat, backrest and belt anchorage to a designed alternate position based on the normal use position provided by manufacturer, and then repeat the above-mentioned installation process and verify its compliance requirements. This alternate position shall be used as information given in Table B

24 angle to 25 or the nearest position to 25. When checking CRF in a certain rear seat, the front seats of the rear can adjust forward longitudinally, but not be more than the middle position of the first and last seats. Backrest angle can also be adjusted correspondingly, but the angle shall not be less than the corresponding torso angle of 15. B B B PLACE the cotton fabrics on the backrest and seat cushions. PLACE CRF in ISOFIX position. A force is applied at the center of ISOFIX anchorage, push the fixture to the ISOFIX fixing system, the force is 100N±10N with a direction parallel to the lower surface of fixture, and then remove the force. B B CRF is connected to the ISOFIX anchorage system. A force is applied to the top center of the fixture to press it down vertically, the force is 100 N ± 10 N, and then removes the force. B.3.3 Requirements B Accommodate the CRF and make it not interfere with the components within the vehicle. CRF base shall have an upward pitch angle of 15 ±10 with the horizontal plane through the ISOFIX anchorage system. B If having ISOFIX anchorages, they shall be kept available. B If the adjustment according to the instruction of B.3.2 cannot meet the abovementioned requirements, please readjust the seat, seat backrest and headrest to a designed alternate position based on the normal use position provided by manufacturer, and then repeat the above-mentioned installation process and verify its compliance requirements. This alternate position shall be given in Table B.3. B If the vehicles have some disassembled internal parts but not meets the abovementioned requirements, then disassembles such components and re-checks it as B.3.3 and shall meet the requirements. In such cases, relevant information shall be given in Table B.3. B Above test condition applies only when the CRF is accommodated by ISOFIX position. Under these test conditions, it is not required CRF can be in or out ISOFIX position. B.3.4 Size category and fixture of ISOFIX child restraint systems Masses of the following device structure shall be within 5kg-15 kg: 56

25 joint to adjust the total mass and mass distribution of dummy, six polyurethane weights with each mass of 1 kg can be fixed on the torso back. D.3 Cushion Cushion shall be placed between the dummy chest and outerwear. And the cushion is made of polyethylene foam; it also meets the following requirements: a) Hardness: Shore A hardness is 7-10; b) Thickness: 25mm±5mm; c) Cushions shall be replaceable. D.4 Adjustment of joints D.4.1 Overview To achieve reproducible results, each joint friction shall be controlled. D.4.2 Knee joint Tighten the knee joint, make thigh and leg vertical, rotate the leg for 30, and gradually release the tensioner (28) until the leg falls under its own weight, locking the tensioner in this position. D.4.3 Hip joint Tighten the hip joint, make thigh in a horizontal position and torso vertical, and forward rotate the torso and thigh to form an angle of 60. Gradually release the tensioner (28) until the torso falls due to its own weight. Lock the tensioner in this position. D.4.4 The first knee joint ADJUST the first knee joint, so that it cannot rotate around due to its own weight. D.4.5 Neck ADJUST the neck by chain tensioner (13), the displacement shall be within 40mm-60mm when adjusting the neck and the upper end of tensioner is forced by a horizontal 100N load. 74

26 shall not exceed 40mm Strength of all adjusting devices shall be tested in accordance with 5.5.1, no rupture or disengage is allowed when bearing the specified load After the test being performed in accordance with 5.5.6, operating force of all manual adjusting mechanism shall not exceed 50N Attachments and belt adjust Strength of attachments shall be tested in accordance with provisions of and If belt adjust is not tested in accordance with GB , the strength test of it shall be carried out in accordance with provisions of No rupture and disengage is allowed under specified load Retractor Manually unlocking retractor For strap of safety belt assembly equipped with manually unlocking retractor, drawing-out amount of it between retractor locking positions shall not exceed 25mm When a force within the range of 14N-22N is applied in the direction of normal drawing-out of strap, the length of strap drawn out from manually unlocking retractor shall not exceed 6mm Draw the strap out in accordance with the method specified in 5.6.1, and carry out 5000 times of repeat drawing-out and retracting test. And perform corrosion test specified in 5.2 and dust test specified in on the retractor; finally, carry out 5000 times of drawing-out and retracting test. After completion of the above tests, the retractor shall be able to operate normally and meet requirements stated in , Automatically locking retractor For strap of safety belt assembly equipped with automatically locking retractor, amount of movement of it between retractor locking adjacent positions shall not exceed 30mm. After backward movement of wearer, the safety belt shall be remained at the original position or automatically returned to the original position after the subsequent forward movement of wearer In case that the retractor is part of the lap belt, retracting force of the strap shall not be less than 7N when measurement is performed on free length between dummy and 21

27 5.10 Test report The test report shall include the following contents: a) Results of all tests in Chapter V; b) Type of adopted testing device (Acceleration or retardation devices); c) The overall speed change; d) Pulley speed at the moment before collision (Retardation pulley) e) Acceleration or retardation curve in the process of pulley speed change; f) The maximum amount of forward movement of dummy; g) The buckle position during test (if changeable); h) Opening force of buckle i) Various failure or rupture phenomenon. According to 5.7.1, if the installation is not performed in accordance with anchorages specified in Annex I., the test report shall contain description about how safety belt assembly or restraint system is installed, and the important angle and size shall also be described. The report shall also provide the buckle deformation or fracture occurring in the test. For the restraint system, the test report shall also detail the connections between the vehicle structure and pulley, the positions of seats, and the inclination angle of seat back. If the amount of forward movement of dummy exceeds the amount specified in the above b), the report shall indicate whether the requirements of a) are met. 6 The requirements of installation in the vehicle 6.1 The safety belt and restraint system equipment In addition to the folding seats (as defined in GB ) and the seats used only for the vehicle in stationary state, the vehicles of M and N types (excluding the vehicles of M2 and M3 types of Levels I, II and A defined in GB/T ) shall be equipped with the safely belts and restraint systems in compliance with the standard The types of safety belts or restraint systems for each seating position that need installing shall meet the provisions of Annex N [No non-locking retractor (3.14.1) and manually retractor (3.14.2) can be used]. Unless the retracting degree of safety belt buckles after fastened in normal use significantly reduces the comfort, all seating positions with the 40

28 the vehicle is in normal operation and satisfies at least one of the following conditions (or the combination of these conditions), the visual and audible signals of more than 30s shall be started, in addition to the warning of more than 3s to stop. The following conditions are: The driving distance exceeds the limit value. The limit value shall not exceed 500m. Exclude the distance when the vehicle is not in normal operation conditions. The speed exceeds the limit value. The limit value shall not exceed 25km/h. The duration (for the operation of engine) exceeds the limit value. The limit value shall not exceed 60s. Exclude the duration of the first level warning signal and the duration when the vehicle is not in normal operation conditions The activation of the second level warning signal shall be tested according to the testing procedure as defined in O.2 of Annex O The safety belt reminder can be designed and allowed to be shut down: a) When the short-term shutdown function is available, it shall be more difficult to shut down the safety belt reminder than to fasten and unfasten the safety belt. When the ignition switch is turned on after turned off for more than 30min, the safety belt reminder shutdown in short term shall be able to be activated again. b) When the long-term shutdown function is available, it is required that the reminder can be shut down only through a series of shutdown operation procedures described in detail in the manufacturer s technical manuals and / or with the tools (mechanical, electronic or digital tools etc.) that are not provided for the vehicles. 7 Instructions If the safety belts are provided separately for the vehicle, the packing and installation instructions shall be detailed clearly with the corresponding vehicle models. 8 Transitional period of the standard implementation The vehicle models determined newly has been implemented since January 1, 2014 and the vehicle models in production will begin from January 1,

29 Annex P (Informative) Instruction for use P.1 All safety belts shall be attached instruction for use including the contents of the P.2- P.5 in Chinese. P.2 The installation instructions shall list the available vehicle types of the safety-belts assembly and the correct method of installing it on the vehicles, including warning to avoid strap wearing(this is not required if it is installed by the vehicle manufacturers). P.3 User instruction (if the vehicle manufacturers have installed the safety-belt, the vehicle user manual shall include such content) to ensure users get the most help from the using the safety-belt. This instruction shall contain, a) The importance of wearing safety belt in any case b) The correct wearing method of safety belt, especially; 1) Specific location of buckle 2) Tightness requirements of wearing safety belt 3) Correct position of strap and to avoid strap distortion 4) The importance of one belt only for one passenger, especially not to share one seat belt with holding a baby. c) Operation method of buckle. d) Operation method of adjusting device. e) The operation method of retractor integrated in the assembly and the method of check it being locked or not. f) Method recommended for belt cleaning and reassembly method after cleaning. g) The safety-belt needs be changed when it is used in a serious accident, or shows signs of serious wear, or cut, or the visual overload indicator shows it not available already, or warning devices installed on it worked. h) Any change and alteration which can disable safety-belt are not allowed, especially for designing detachable parts, there must be instructions for the correct assembly. i) Instructions for adult-sized safety belt j) Preservation method of safety belt out of use