GB 11562-2014Motor Vehicles — Forward Visibility for Drivers — Requirements and Measurement Methods (English PDF)

Foreword

This Standard was drafted as per the rules specified in GB/T 1.1-2009.

This Standard replaced GB 11562-1994 Motor Vehicles – Forward Visibility for Drivers – Requirements and Measurement Methods; the major differences between this Standard and GB 11562-1994 are as follows:

11559 Motor Vehicles – Use in Defining their Seating Accommodation – Three- Dimensional H-Point Machine (these two standards are obsolete) from the normative references;

standard into “three-dimensional reference gird”; and add the following terms and definitions:

--- Vehicle type with regard to the field of vision (see Sub-clause 3.1);

--- Armoured vehicle (see Sub-clause 3.11);

--- Extended seat-adjustment range (see Sub-clause 3.18);

--- Reference data (see Sub-clause 3.22);

--- Three-dimensional H point machine (see Sub-clause 3.23);

--- Center plane of occupant (see Sub-clause 3.25);

--- Fiducial marks (see Sub-clause 3.26);

--- Vehicle measuring attitude (see Sub-clause 3.27);

c) Add the technical requirements for “armoured (bulletproof) vehicle” (see Sub- d) Add the requirements for steering wheel adjustable vehicle (see Sub-clause This Standard adopts the re-drafting method to modify and use the Economic Commission for Europe ECE R125 Rev.2/Add.124/Amend.3 (2011 Edition) Uniform Provisions Concerning the Approval of Motor Vehicles with regard to the Forward Field of Vision of the Motor Vehicle Driver.

The comparison list between the clause numbers of this Standard and clause number of ECE R125 Regulation can refer to Appendix A of this Standard.

The technical differences and causes between this Standard and ECE R 125 Regulation are as follows:

the rules of GB/T 1.1-2009, and meeting the requirements for motor vehicles driving on the right side of the road in China.

“Changes and Expansion of Vehicle Types”, Clause 8 “Production Consistency”, Clause 9 “Punishment on Non-Production Consistency”, Clause 10 “Shut down”, Clause 11 “Addresses and Names of Testing Agencies and their Administrative Agencies”, information of manufacturer applying for certification in Annex 1, format of certification marks in Annex 2, etc. for the purpose of keeping consistent China’s motor vehicle management system, and for the benefit of the implementation and operation of this Standard.

This Standard was proposed by Ministry of Industry and Information Technology of the People’s Republic of China.

This Standard shall be under the jurisdiction of National Technical Committee for Standardization of Automobiles (SAC/TC 114).

Drafting organizations of this Standard: Dongfeng Motor Corporation, Natinoal Automobile Quality Supervision and Test Center (Xiangyang), China FAW Co., Ltd. R&D Center, China Quality Certification Center, European Automobile Manufacturers’ Association, Hubei Qixing Truck and Cabin Manufacturing Co., Ltd., and China National Accreditation Service for Conformity Assessment.

Chief drafting staffs of this Standard: Zhang Shangjiao, Qiu Gang, Sun Lei, Yu Boying, Zhao Shuhua, Wang Sheng, Liu Liya, Qu Yanping, Zhang Mingjie, Cai Yanxin, Zhou Yanling, and Ji Liming.

The historical editions replaced by this Standard are as follows:

1 Scope

This Standard specifies the requirements and measurement methods of the direct visual filed within 180° range in front of the driver.

This Standard is applicable to the Type-M1 automobile.

2 Normative References

The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this document.

3 Terms and Definitions

The following terms and definitions are applicable to this document.

of visions within 180° range in front of the driver;

--- Shape, dimension and installation mode of front windshield glass.

4 Technical Requirements

--- Datum point a inclined 17° left at V1 point level forward;

--- Datum point b inclined 7° upward along the vertical plane at V1 point forward;

--- Datum point c inclined 5° downward along the vertical plane at V2 point forward;

symmetry plane of the vehicle, which are symmetrical to the three datum points of a, b, c.

4.2 The binocular obstruction angle of each A pillar doesn’t exceed 6° (see Figure 3); for armoured vehicle, such angle shall not exceed 10°. If the A pillar on the driver’s side and passenger side is symmetrical with respect to the longitudinal vertical plane of vehicle center, then the angle of obstruction of the A pillar on the passenger side doesn’t need to be measured again.

4.3 Each vehicle shall be no more than two A pillars.

4.4 In addition to Sub-clause 4.4.1 and 4.4.2, within the range of 180° of the driver’s front visual field, in the range of below the horizontal plane passing through V1, and above the three planes (all the three planes form the angles of 4° with horizontal plane below; thereof one plane is perpendicular to Y datum plane, the other two planes are perpendicular to X datum plane) passing through V2, there shall be no other obstructions except A pillar, fixed or active exhaust vents, triangular window separators, exterior radio antennas, rearview mirrors, windshield wipers, etc. (see Figure 4). However, the following cases shall be excluded:

printed radio antenna conductor with width no greater than 1.0mm;

specified in Sub-clause 5.5; however, if the conductor diameter is less than 0.5mm, three pieces of conductors are allowed to access to;

0.03mm, minimum pith of 1.25mm; or horizontal demisting and defrosting conductor with maximum visibility of 0.03mm, minimum pith of 2.0mm.

4.4.2 If the obstruction starting from V2 point, and its project in the area “S” not exceeding 20% of such area, then the obstruction between the plane passing through V2 point and forming 1° below with the horizontal plane, and the plane passing through V2 point and forming 4° below with the horizontal plane is allowed. If the steering wheel is adjustable, it shall be placed in the normal position indicated by the vehicle manufacturer; or place the steering wheel on the center of the adjustable range.

5 Measuring Conditions

6 Determination Method of Driver’s Field of Vision

6.1 The dimensional relationship of primary reference marks of vehicles in the three-dimensional coordinate system shall be determined by the method stipulated in Appendix B. The three-dimensional coordinate system shall be determined by the method stipulated in Appendix C. 6.2 The positions of V points (V1, V2) shall be determined through the R point expressed by three-dimensional coordinate system, and after the modifying of the seat sate; then find out the windshield reference point as per the provisions of Subclause 4.1. The positions of P points (P1, P2) shall be determined by the R point expressed by three-dimensional coordinate system, and the modifying of the seat state; see Table 2 and 3. The corrected value of the design seat-back angle beyond 25° can refer to Table 4. forms 2° with the horizontal plane upward; make horizontal plane passing through the forefront intersection point between the above plane and A pillar; forms 5° with the horizontal plane downward; make horizontal plane passing through the forefront intersection point between the above plane and A pillar; c) Project S1, S2 cross-sections into the horizontal plane where P points are located; measure the binocular obstruction angle on such plane, see Figure 3. 6.4.1 Rotate the line connecting E1 and E2 around P1; so that the tangent line from E1 to the outer side of S2 cross-section on the left A pillar forms right angle with the line connecting E1 and E2; make tangent line from E1 to the outer side of S2 cross-section on the left A pillar, and make tangent line from E2 to the inner side of S1 cross-section on the left A pillar; make the parallel line from E2 against the former tangent line; then it forms filed of vision on the plane with the latter tangent line, which is called an angle of obstruction of the A pillar on the driver’s (left) side (see Figure 3). 6.4.2 Rotate the line connecting E3 and E4 around P2; so that the tangent line from E3 to the outer side of S2 cross-section on the right A pillar forms right angle with the line connecting E3 and E4; make tangent line from E3 to the inner side of S1 cross-section on the right A pillar, and make tangent line from E4 to the outer side of S2 cross-section on the right A pillar; make the parallel line from E3 against the latter tangent line; then it forms filed of vision on the plane with the former tangent line, which is called an angle of obstruction of the A pillar on the driver’s (right) side (see Figure 3). 6. […]

Appendix A Comparison between Clause Numbers of this Standard and Clause

Table A.1 gives the comparison list between Clause numbers of this Standard and clause numbers of ECE R 125.

Appendix B Determination Method of Dimensional