GB 11551-2014 PDF English
US$145.00 · In stock · Download in 9 secondsGB 11551-2014: The protection of the occupants in the event of a frontal collision for motor vehicle Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid GB 11551: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB 11551-2014 | English | 145 |
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The protection of the occupants in the event of a frontal collision for motor vehicle
| Valid |
| GB 11551-2003 | English | 879 |
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3 days
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[Replaced by GB 11551-2014] The protection of the occupants in the event of a frontal collision for passenger car
| Obsolete |
| GB/T 11551-1989 | English | 199 |
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2 days
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Motor vehicles--Occupant cash protection
| Obsolete |
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GB 11551-2014: The protection of the occupants in the event of a frontal collision for motor 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/GB11551-2014
GB
NATIONAL STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 43.020
T 09
Replacing GB 11551-2003
The protection of the occupants in the event of a
frontal collision for motor vehicle
Issued on. SEPTEMBER 3, 2014
Implemented on. JANUARY 1, 2015
Issued by. General Administration of Quality Supervision, Inspection
and Quarantine;
Standardization Administration Committee.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 5
4 Requirements... 7
5 Test methods... 12
6 Vehicle type change and expansion... 18
7 Transition period requirements of standard implementation... 18
Annex A (Normative) Determination procedure of riding position H point and
actual seat back angle... 19
Annex B (Normative) Determination of performance criterions... 30
Annex C (Normative) Dummy arrangement and restraint system adjustment 33
Annex D (Normative) Testing technology. instruments... 37
Annex E (Normative) Pulley test program... 44
1 Scope
This Standard specifies terms and definitions, requirements and test methods
for occupant protection of front seats for frontal seating in frontal collision of
vehicles.
This Standard is applicable to vehicles of M1 category and N1 vehicles of
which the maximum total mass is not greater than 2500 kg as well as
multipurpose goods vehicle.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including
any amendments) applies.
GB/T 3730.1 Motor vehicles and trailers - Types - Terms and definitions
GB 14166 Safety-belts, restraint systems, child restraint systems and
ISOFIX child restraint systems for occupants of power-driven vehicles
GB 14167 Safety-belt anchorages, ISOFIX anchorages systems and
ISOFIX top tether anchorages for vehicles
GB/T 15089 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 defined
in GB/T 20913-2007 apply.
3.1 protective system
internal mounting parts and devices for restraining occupants
3.2 type of protective system
protective devices which have no differences in the following main aspects.
3.3 angle of impact
the angle between the line perpendicular to the front surface of the barrier
and the direction of travel of the longitudinal direction of the vehicle
3.4 barrier face
the part of face of which the barrier is against the plywood
3.5 vehicle type
vehicles which have no differences in the following main aspects.
3.6 passenger compartment
space for occupants which is enclosed by roof, floor, side wall, door, glass
window and front, rear or rear seat back support plate
4 Requirements
4.1 General requirements
4.1.1 The H point of each seat shall be determined in accordance with the
procedures specified in Annex A.
4.1.2 If the front seat position protection system includes seat belts, the
safety belt should meet the requirements of GB 14166.
4.1.3 For riding positions used to seat dummies and equipped with
protective system including seat belt, its seat belt anchor point shall meet the
requirements of GB 14167.
4.1.4 For seats equipped with airbags, there should be airbag prompt
information.
4.1.5 For vehicle equipped with one or more frontal protective airbags, the
information should be prompted that extreme risk shall be generated after
rear-facing child restraint system is used on the seat protected by a front
airbag.
4.2 Technical requirements
4.2.1 If the test is carried out for the vehicle according to the provisions of
GB/T 20913-2007, and it complies with the provisions of 4.2 in GB/T
20913-2007, this vehicle shall be considered to comply with the requirements
of 4.2.For N1 category vehicle and multipurpose good vehicle, the
requirements of b), c) and e) of 4.2.2 of this Standard are not required.
4.2.2 For a dummy in the front outboard seat, the performance criteria
determined in accordance with Annex B shall meet the following
requirements.
4.2.3 Do not open the door during the test.
4.2.4 During the test, the locking system of the front door must not be
locked.
4.2.5 After the impact test, in addition to the necessary tools to support the
mass of the dummy, without the use of other tools, it should.
4.2.6 During the collision, the fuel supply system should not leak.
4.2.7 After the impact test, if there is continuous liquid leakage in the fuel
supply system, the average leakage rate shall not be greater than 30 g/min
for the first 5 minutes after the collision; if the liquid from the fuel supply
system is mixed with liquid from other systems, and different liquids are not
easily separated and identified, then all liquid collected shall be included in
the assessment of continuous leakage.
5 Test methods
5.1 Facilities and vehicle preparation
5.1.1 Test site
The test site should be large enough to accommodate runways, barriers and
the necessary technical facilities for testing. At least 5 m of the runway before
the barrier shall be level, flat and smooth.
5.1.2 Barrier
The barrier is made of reinforced concrete. The front width is not less than 3
m and the height is not less than 1.5 m. Barrier thickness should ensure that
its mass is not less than 7 × 104 kg. The front surface of the barrier should be
plumb. The normal line should form a 0° angle with the straight direction of
the vehicle. And the barrier surface should be covered with a plywood of 20
mm ± 1 mm thickness and in good condition (as shown in Figure 5).
5.1.3 Barrier positioning
The orientation of the barrier shall make the angle of impact 0°.
Figure 5 0° barrier with plywood
5.1.4 Vehicle conditions
5.1.4.1 General requirements
The test vehicle shall be able to reflect the characteristics of the series, shall
include all equipment normally installed, and should be in the normal
operation state. Some components may be replaced by equivalent mass
alternatives, but the requirement for such replacement should not affect the
measurement results of 5.6.
5.1.4.2 Vehicle mass
5.1.4.3 Adjustment of passenger compartment
5.1.4.3.1 Steering wheel position
If the steering wheel is adjustable, it shall be adjusted to the position specified
by the manufacturer. If not specified by the manufacturer, it should be
adjusted to the middle of the adjustable range. At the end of the acceleration
process, the steering wheel should be in a free state, and in the position
specified by the manufacturer when the vehicle is running straight.
5.1.4.3.2 Glass
The moving glass on the vehicle should be in the closed position. In order to
facilitate the test measurement, agreed by the manufacturer, the moving
glass can be put down, as long as the position of the handle at this time is
equivalent to the position where the glass is closed.
5.1.4.3.3 Shift lever
The shift lever should be in the neutral position.
5.1.4.3.4 Pedal
The pedal should be in the normal position. If the pedal is adjustable, it should
be placed in the middle position, unless the manufacturer has special
requirements for this position.
5.2 Dummy
5.2.1 In accordance with the provisions of Annex C, in each front seat on
the outside, place a dummy that meets the requirements, the dummy should
meet 50% of Hybrid III dummy technical requirements and the corresponding
adjustment requirements. In order to record the necessary data so as to
determine the performance indicators, the dummy shall be equipped with a
measuring system complying with the technical requirements of Annex D.
5.2.2 During the test, it shall use the restraint system set by the
manufacturer.
5.3 Vehicle driving
5.3.1 Vehicles should not be driven by their own power.
5.4 Test speed
5.5 Measurement of front seat dummy
5.5.1 In order to determine all measurements required by performance
indicators, it shall use the measurement system which complies with
requirements of Annex D.
5.5.2 The different parameters shall be recorded by means of an
independent data channel with the following CFC (channel frequency class).
5.6 Measurements made on vehicle
5.6.1 During the simplified test specified in Annex E, the deceleration time
history of the torso structure shall be determined on the basis of the reading
of the longitudinal acceleration sensor at the lower end of the "B" column on
the left side of the vehicle. Use a data channel that complies with Annex D
and has a CFC of 180.
5.6.2 The speed-time curve used in the simplified test procedure specified
in Annex E shall be obtained from the longitudinal acceleration sensor at the
lower end of the "B" column on the left side of the vehicle.
6 Vehicle type change and expansion
Any changes in the position of the vehicle controls or mechanical components
that affect the structure, number of seats, interiors or equipment, or which
may affect the energy absorption characteristics of the front of the vehicle,
shall be notified to the competent vehicle authority. The competent vehicle
department shall take one of the following measures.
7 Transition period requirements of standard
implementation
7.1 For the new application type approval model, it shall be implemented
after 1 year since the date of publication of this Standard. And for N1 category
vehicles and multipurpose goods vehicles, it shall be implemented after 2
years since the date of publication of this Standard.
7.2 For models in production, it shall be implemented after 3 years since the
date of publication of this Standard.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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