GB 11557-2011 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB 11557-2011 | English | 145 |
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The stipulation protecting drivers from being injured by motor vehicle steering mechanism
| Valid |
| GB 11557-1998 | English | 319 |
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The stipulation protecting drivers from being injured by motor vehicle steering mechanism
| Obsolete |
| GB 11557-1989 | English | RFQ |
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The stipulation protecting drivers from being injured by motor vehicle steering mechanism
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GB 11557-2011: The stipulation protecting drivers from being injured by motor vehicle steering mechanism
---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/GB11557-2011
GB
NATIONAL STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.60
T 26
Replacing GB 11557-1998
The stipulation protecting drivers from being injured
by motor vehicle steering mechanism
Issued on. MAY 12, 2008
Implemented on. JANUARY 1, 2012
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration Committee.
Table of Contents
Foreword... 3
1 Scope... 6
2 Normative references... 6
3 Terms and definitions... 6
4 Technical requirements... 8
5 Test methods... 10
Annex A (Informative) Comparison on clause numbers between this Standard
and ECE R12... 11
Annex B (Normative) Frontal fixed barrier impact test... 12
Annex C (Normative) Human body module test... 16
Annex D (Normative) Impactor test... 21
Foreword
Clause 4 of this Standard is mandatory; the rest are recommendatory.
The modification of this Standard adopts ECE R12 The uniform stipulation
protecting drivers from being injured by motor vehicle steering mechanism in
the collision of motor vehicles (English version) (Revision 3 and all subsequent
supplements, errata which were released prior to August, 2000).
This Standard was redrafted based on ECE R12.Annex A lists comparison
between clause numbers of this Standard and the ones of ECE R12.
Technical differences between this Standard and ECE R12 as well as reasons
are as follows.
- this Standard deleted ECE R12’s Clause 3 “Certification application”,
Clause 4 “Certification”, Clause 7 “Certification change and expansion of
vehicle type and steering control type”, Clause 8 “Production consistency”,
Clause 9 “Production inconsistency penalties”, Clause 10 “Instructions on
use”, Clause 11 “Official discontinued production”, Clause 12 “Name and
address of the certification testing department and the administrative
department”, Clause 13 “Transitional provisions” and Annex 1
“Certification notice”, Annex 2 “Certification mark layout” because the
standard system and the legal system were different and these were
content related to “certification procedures and certification mark”;
- this Standard deleted ECE R12’s 2.1 “Vehicle certification”, the term and
definition of “Steering control certification” in 2.3 because the standard
system and the legal system were different and these were content related
to “certification procedures and certification mark”;
- this Standard used Annex C of GB 11551-2003 to replace the content of
“car riding position H and the actual back rest angle” in Annex 6 of ECE
R12, so as to ensure that this Standard was consistent with the content of
“the car ride position H and the actual back rest angle” in GB 11551-2003;
- this Standard added the term and definitions of “R point” (see 3.17) in
Clause 3 because R point of driver’s seat should be used during human
body module impact test;
- added the content of “at this time, the determination procedure of the
dummy seat riding position H point and the actual seat back angle should
be carried out according to Annex C of GB 11551-2003” in Annex B
because the installation of the dummy during the test required adjustment
of the seat condition;
- added terms and illustrations (see C.2.5.3 and Figure C.2) about the
relative position of the human body module and the steering mechanism
and the direction of impact during the test in Annex C because the relative
position of the test could be more clearly indicated;
- added “If the impact velocity of the test is higher than this value, but the
steering mechanism still complies with the specified requirements, this
test shall be regarded to meet requirements” (see D.4.3) in Annex D
because it specified the determination reference for test results to comply
with requirements under more severe conditions (impact velocity is higher
than the specified value).
This Standard also made the following editorial modifications.
- modified “this Regulation” to “this Standard”;
- added the informative Annex A.
This Standard replaces GB 11557-1998 The stipulation protecting drivers from
being injured by motor vehicle steering mechanism.
The main differences between this Standard and GB 11557-1998 are as follows.
- the scope of application of this Standard has been adjusted; Edition 1998
is applicable to vehicles of M1 category but not short cars and flat cars;
This edition is applicable to vehicles of M1 category and N1 vehicles of
which the maximum total mass is less than 1500 kg (Clause 1 of this
Edition);
- added requirements of “the amount of movement of the steering shaft and
the top of the steering column” in frontal fixed barrier crash test (4.3 of this
Edition);
- added head-type impact test of steering mechanism (4.3 of this Edition).
Annex B, Annex C, Annex D of this Standard are normative; Annex A is
informative.
The transition period of the implementation of this Standard. for new car model,
this Standard is implemented since January 1, 2012; for model in production,
this Standard is implemented since January 1, 2014.
This Standard was proposed by National Development and Reform
Commission.
This Standard shall be under jurisdiction of National Automotive
Standardization Technical Committee.
Drafting organization of this Standard. China Automotive Technology and
Research Center.
Main drafters of this Standard. Du Tianqiang, Yuan Jian.
The previous versions replaced by this Standard are as follows.
- GB 11557-1989, GB 11557-1998.
The stipulation protecting drivers from being injured
by motor vehicle steering mechanism
1 Scope
This Standard specifies technical requirements and test methods for driver's
injury in the process of frontal collision of vehicle steering mechanism.
This Standard is applicable to vehicles of M1 category and N1 vehicles of which
the maximum total mass is less than 1500 kg. Other vehicles shall refer to this
Standard to carry out the test.
2 Normative references
The following standards contain the provisions which, through reference in this
Standard, constitute the provisions of this Standard. For dated references,
subsequent amendments (excluding corrections) or revisions do not apply to
this Standard. However, the parties who enter into agreement based on this
Standard are encouraged to investigate whether the latest versions of these
documents are applicable. For undated reference documents, the latest
versions apply to this Standard.
GB 11551-2003 The protection of the occupant in the event of a frontal
collision for passenger car
GB/T 15089-2001 Classification of power-driven vehicles and trailers
GB/T 20913-2007 The protection of the occupants in the event of an off-
set frontal collision for passenger car
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1 vehicle type
same type of vehicles having no differences in the following aspects.
3.2 steering control type
same type of steering control having no differences in structure, dimensions,
profile, structural material, manufacturer
3.3 steering control
a steering wheel operated by the driver for controlling the direction of travel of
the vehicle
3.4 general steering control
steering control which can be installed in a variety of certified vehicle types of
which the difference between this steering control and steering column
connection does not affect its collision characteristics
3.5 air-bag
a flexible bag used for filling high pressure gas
3.6 steering control rim
the circular part of steering wheel which is directly operated by the driver's hand
4 Technical requirements
4.1 According to the test procedures specified in Annex B, when a vehicle
under normal operating conditions at 48.3 km/h ~ 53.1 km/h is conducting the
frontal fixed barrier collision, the amount of movement backwards measured at
vehicle steering column and steering shaft top along with a horizontal direction
parallel to the central longitudinal axis of the vehicle, relating to some point not
affected by the collision in the vehicle, must not greater than 127 mm;
4.1.1 For electric motor vehicles, when the above-mentioned test specified in
4.1, the propeller battery switch should be set to "ON", and meet the following
requirements.
4.1.2 If vehicles equipped with steering gear comply with the provisions of
4.2.3 in GB/T 20913-2007, the steering mechanism is considered to meet the
requirements of 4.1 mentioned above.
4.2 According to the test procedure specified in Annex C, when human body
module is impacting on steering control at a relative velocity of 24.1 km/h ~ 25.3
km/h, the horizontal force acting on the human body module by the steering
mechanism must not exceed 11123 N.
4.4 The design, construction and installation of steering control should meet
the following requirements.
4.4.1 Prior to the 4.2 and 4.3 tests, the part of steering control facing the driver
side, which can be contacted by a sphere having a dimeter of 165 mm, should
be smooth. The fillet radius of sharp or convex part must not be less than 2.5
mm.
4.4.5 In order to facilitate the steering control connected with the steering
column, it can use transition pieces; however, it should ensure the use of
transition pieces has no effect on the energy absorption of the entire system.
All tests can use the transition pieces of same type.
5 Test methods
5.1 In order to verify the compliance with the requirements of Clause 4, it shall
carry out the tests according to the test methods specified in Annex B, Annex C
and Annex D. All measurement should be conducted according to ISO
6487.2002.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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