GB 26511-2011 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB 26511-2011 | English | 70 |
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Front underrun protective requirements for commercial vehicle
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GB 26511-2011: Front underrun protective requirements for commercial vehicle---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB26511-2011
T 26
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
Front Underrun Protective Requirements
for Commercial Vehicle
Issued on: MAY 12, 2011
Implemented on: JANUARY 01, 2012
Jointly Issued by. General Administration of Quality Supervision, Inspection and Quarantine;
Standardization Administration of the People's Republic of China.
GB
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FOREWORD
Clauses 4 to 7 in this Standard are compulsory, while the others are recommended.
This Standard is not equivalent to ECE Regulation No. 93 (1994, English) “UNIFORM PROVISIONS
CONCERNING THE APPROVAL OF. I. FRONT UNDERRUN PROTECTIVE DEVICES (FUPDs); II.
VEHICLES WITH REGARD TO THE INSTALLATION OF AN FUPD OF AN APPROVED TYPE; III.
VEHICLES WITH REGARD TO THEIR FRONT UNDERRUN PROTECTION (FUP)”.
Compared with ECE R93, the significant differences are shown as follows.
Cancelled the administrative provisions such as application for approval;
Cancelled the communication on vehicle type approval;
Cancelled the arrangements of approval marks;
Cancelled the conformity of production and other administrative procedures.
Annex A of this Standard is normative.
This Standard was proposed by the National Development and Reform Commission.
This Standard is under the jurisdiction of National Technical Committee of Auto Standardization.
This Standard was mainly drafted by China Automotive Technology and Research Centre, China National
Heavy Duty Truck Group Co., Ltd. and China FAW Group Corporation.
The organizations participated in drafting this Standard are Dongfeng Motor Co., Ltd., National Automobile
Quality Supervision and Test Center (Xiangfan), Shanxi Automobile Group Co., Ltd., Anhui Jianghuai
Automobile Co., Ltd., Jiangling Motors Co., Ltd., Beiqi Foton Motor Co., Ltd., National Motor Vehicle Quality
Supervision and Inspection Center (Chongqing), Baotou Bei Ben Heavy-Duty Truck Co., Ltd., SAIC-IVECO
HONGYAN commercial Vehicle Co., LTD., CIMC Vehicle (Group) Co., Ltd., Beijing Office of Isuzu Motors,
Hino Motors (China), Ltd., Volvo(China) Investment Co., Ltd., and Daimler Northeast Asia Investment Co., Ltd.
Chief drafters of this standard are Geng Lei, Wang Xueping, Mie Ligang, Li Yusheng, Liu Liya, Yu Boying
and Su Yuping.
The drafters participated in drafting this Standard are Li Sanhong, Zhang Lili, Li Yugang, Yang Yujuan,
Zhang Luding, Zhaoying, Wu Yufang, Zhang Jian, Fan Mengbo, He Jiaqiang, Zhang Li and Cao Li.
The transitional period for the implementation of this Standard is, from January 1, 2013 for the newly
produced vehicles, while from January 1, 2015 for the vehicles in production.
Front Underrun Protective Requirements for Commercial Vehicle
1 SCOPE
This standard specifies the technical requirements and test methods of front underrun protection for
commercial vehicles.
This standard applies to Categories N2 and N3 vehicles.
This standard doesn’t apply to.
- Category G vehicles specified in GB/T 15089;
- The vehicles which are designed and manufactured for special purposes and not intended to be fitted with
front underrun protection structurally.
2 NORMATIVE REFERENCES
The following Standards contain provisions which, through reference in this text, constitute provisions of
this Standard. For dated references, subsequent amendments (corrigenda excluded) to, or revisions of, any of
these publications do not apply. However, parties to agreements based on this Standard are encouraged to
investigate the possibility of applying the most recent editions of the Standards indicated below. For undated
references, the latest edition of the applicable Standards referred to apply.
GB/T 15089 Classification of power-driven vehicles and trailers
3 TERMS AND DEFINITIONS
For the purpose of this standard, the terms and definitions given in GB/T 15089 and the followings apply.
3.1
Front Underrun Protection (FUP)
"Front underrun protection" means either a special FUPD, or the body work, chassis parts or other components,
which can fulfill the function of front underrun protection by virtue of their shape and characteristics.
3.2
Front Underrun Protection Devices (FUPD)
“Front Underrun Protection Devices” means the device, usually consisting of cross members, is intended to be
installed on or linked with the chassis or other structural members.
4 TECHNICAL REQUIREMENTS FOR FUPD
4.1 The FUPD shall offer adequate resistance to forces applied parallel to the longitudinal axis of the vehicle
and also satisfy certain dimensional requirements. These shall be demonstrated in accordance with the test
conditions and procedure specified in Annex A.
4.2 The section height of the FUPD cross-member shall not be less than 100 mm for category N2 vehicles and
120 mm for vehicles of category N3.
4.3 The lateral extremities of the cross-member shall not bend to the front or have a sharp outer edge; the lateral
extremities of the cross-member shall be rounded on the outside and have a radius of curvature of not less than
2.5 mm.
4.4 The outer surfaces of the FUPD shall be smooth. The height of the heads of bolts or rivets which protrude
beyond the surface shall not exceed 10 mm.
4.5 The FUPD may be so designed that its position at the front of the vehicle can be varied. In this event, there
shall be a guaranteed method of securing it in the service position so that any unintentional change of position is
precluded. The force to be applied to vary the position of the device shall not exceed 400N.
5 TECHNICAL REQUIREMENTS FOR THE VEHICLES EQUIPPED WITH THE FUPD
SATISFIED WITH THE REQUIREMENTS OF CLAUSE 4
5.1 The maximum ground clearance with respect to the underside of the FUPD shall be no more than 400 mm,
under the conditions specified in A.2, between the two points P1.
5.2 Outboard of two P1 points this height may be greater than 400 mm, but the underside shall be below the
Plane M, which is a plane passing through the underside of the FUPD directly below the point P1 and forming a
slope at 15 degrees above the horizontal (see figure 3).
5.3 The maximum width of the FUPD shall not exceed the outer width of the fenders covering the front wheels.
The transverse horizontal distance measured from the outermost edge at any point of FUPD to the outermost end
plane of the front wheel tyres of the same side, excluding the deflection of the tyres, shall not be more than 100
mm, or to the outermost point of access steps to the driver's cabin shall not be more than 200 mm (see figure l).
5.4 Test shall be carried out under the conditions set out in Annex A, during the test process and after the test
completes, the horizontal distance measured from the foremost part of the vehicle to each testing point on front
end plane of the FUPD shall not exceed 400 mm (see figure 2).
5.5 Test shall be carried out under the conditions set out in Annex A, during the test process and after the test
completes, the maximum ground clearance with respect to the underside of the FUPD between the two points P1
shall be no more than 450 mm (see figure 2).
5.6 In measuring the distances as specified in 5.4, any part of the vehicle which is more than 2 m above the
ground shall be excluded.
6 TECHNICAL REQUIREMENTS FOR THE VEHICLES EQUIPPED WITH FRONT UNDERRUN
PROTECTION FUNCTION
6.1 The FUP shall offer adequate resistance to forces applied parallel to the longitudinal axis of the vehicle and
also satisfy certain dimensional requirements. These shall be demonstrated in accordance with the test conditions
and procedure specified in Annex A.
6.2 The section height of the cross-member with FUP function shall not be less than 100 mm for category N2
vehicles and 120 mm for vehicles of category N3.
6.3 The FUP may be so designed that its position at the front of the vehicle can be varied. In this event, there
shall be a guaranteed method of securing it in the service position so that any unintentional change of position is
precluded. The force to be applied to vary the position of the device shall not exceed 400N.
6.4 The maximum ground clearance with respect to the underside of the FUP shall be no more than 400 mm,
under the conditions specified in A.2, between the two points P1.
6.5 Outboard of two P1 points this height may be greater than 400 mm, but the underside shall be below the
Plane M, which is a plane passing through the underside of the FUP directly below the point P1 and forming a
slope at 15 degrees above the horizontal (see figure 3).
6.6 The maximum width of the FUP shall not exceed the outer width of the fenders covering the front wheels.
The transverse horizontal distance measured from the outermost edge at any point of FUP to the outermost end
plane of the front wheel tyres of the same side, excluding the deflection of the tyres, shall not be more than 100
mm, or to the outermost point of access steps to the driver's cabin shall not be more than 200 mm (see figure l).
6.7 Test shall be carried out under the conditions set out in Annex A, during the test process and after the test
Annex A
(Normative)
Test Conditions and Procedures
A.1 TEST CONDITIONS FOR FUPDs
A.1.1 The test may be conducted either.
a) On a vehicle;
b) On a part of the chassis of the vehicle; or
c) On a rigid test bench.
A.1.2 When testing in accordance with paragraphs A.1.1b) or c), the parts used to connect the FUPD to part of
the vehicle chassis or to the rigid test bench shall be equivalent to those which are used to secure the FUPD
when it is installed on the vehicle.
A.1.3 At the request of the m...
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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