GB 15084-2022 PDF English
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| GB 15084-2022 | English | 695 |
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Motor vehicles - Devices for indirect vision - Requirements of performance and installation
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| GB 15084-2013 | English | 125 |
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Motor vehicles -- Devices for indirect vision -- Requirements of performance and installation
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| GB 15084-2006 | English | 919 |
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Motor vehicles -- Rear view mirror -- Requirements of performance and installation
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| GB 15084-1994 | English | 599 |
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Motor vehicles-Rear view mirrors-Requirements of performance and installation
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GB 15084-2022: Motor vehicles - Devices for indirect vision - Requirements of performance and installation
---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/GB15084-2022
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.60
CCS T 26
Replacing GB 15084-2013
Motor vehicles - Devices for indirect vision - Requirements
of performance and installation
Issued on: DECEMBER 29, 2022
Implemented on: JULY 01, 2023
Issued by. State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 5
4 Technical requirements... 9
5 Test method... 22
6 Installation requirements... 28
7 CMS installation requirements... 40
8 Identification of the same type... 45
9 Transition period for implementation... 46
1 Scope
This document specifies the technical requirements, test methods, installation
requirements, identification of the same type of device for indirect visions for category
M and category N, as well as the category L motor vehicles, which have at least a
partially enclosed cab.
This document applies to device for indirect visions for motor vehicles of category M
and category N, as well as the category L with at least a partially enclosed cab.
2 Normative references
The contents of the following documents constitute the essential provisions of this
document through normative references in the text. Among them, for dated references,
only the version corresponding to the date applies to this document; for undated
references, the latest version (including all amendments) applies to this document.
GB 11552 The interior fittings of passenger car
GB 34660 Road vehicles - Requirements and test methods of electromagnetic
compatibility
ISO 9241-305 Ergonomics of human-system interaction - Part 305.Optical
laboratory test methods for electronic visual displays
ISO 15008 Road vehicles - Ergonomic aspects of transport information and control
systems - Specifications and test procedures for in-vehicle visual presentation
ISO 16505 Road vehicles - Ergonomic and performance aspects of Camera Monitor
Systems - Requirements and test procedures
3 Terms and definitions
The following terms and definitions apply to this document.
4 Technical requirements
4.1 Types of device for indirect visions
The types of device for indirect visions are as follows.
a) Category I, providing inner rear vision;
b) Category II and category III, providing the main outer rear view;
c) Category IV, providing wide-angle external vision;
d) Category V, providing supplementary external vision;
e) Category VI, providing forward vision;
f) Category VII, providing vision for category L motor vehicles (at least the cab is
partially enclosed).
4.2 Mirror
4.2.2 Special requirements
4.2.2.1 Dimensions
4.2.2.2 Reflecting surfaces and radii of curvature
4.2.2.2.1 Reflecting surfaces
The reflecting surface of the viewing mirror shall be flat or convex. The reflecting
surface is allowed to add an aspheric reflecting surface, BUT the aspherical reflecting
surface is not allowed to use for meeting the field of view requirements of 6.5.
Measure according to the method specified in Appendix A. For the mirror which has
two working modes, it shall be able to correctly identify the color signal of road traffic
when it is in the daytime position AND the reflectivity of the reflecting surface shall
not be less than 40%; the reflectivity of the reflecting surface, in the nighttime position,
shall not be less than 4%. For the mirror, which has only one working mode, the
reflectivity of the reflecting surface shall not be less than 40%.
4.2.2.2.2 Radius of curvature
4.3 CMS
4.3.2 Functional requirements of CMS of category I, category II, category III,
category IV
4.3.2.1 Luminance adjustment
The luminance of the monitor shall be manually or automatically adjusted, according
to the environmental conditions.
4.3.2.2 Directional uniformity
Carry out the test, according to the method specified in ISO 16505.Display a 70%
grayscale image on the monitor. The difference -- between the luminance of the monitor
in the basic observation direction and the luminance in the design observation direction
-- shall comply with formula (2). The difference -- between the luminance of the
monitor in the expansion direction and the luminance in the design viewing direction -
- shall comply with formula (3).
4.3.2.3 Lateral uniformity
The test shall be carried out, according to the method specified in ISO 16505.The lateral
uniformity of the luminance of the monitor shall comply with the formula (4).
4.3.2.4 Luminance and contrast reproduction
4.3.2.10 Sharpness
It shall be tested according to the method specified in ISO 16505.The horizontal
sharpness and vertical sharpness MTF50 (1.1), in the center of the image, shall meet the
formula (5). The horizontal sharpness and vertical sharpness MTF50 (1.1), in the corner
of the image (70% of the image height), shall conform to formula (6).
5 Test method
5.1 General rules for testing
5.1.1 Category I, category II, category III, category IV, category V, category VI device
for indirect visions, as well as the category VII mirrors (same installation method as
category III mirrors) for category L vehicles shall be subject to the test specified in 5.2.
Category VII mirrors with support rods shall be subjected to the test specified in 5.3.
5.1.2 When the vehicle is under the condition of the maximum design total mass,
meanwhile the height of all parts of the device for indirect vision from the ground, at
any adjustable position, is not less than 1.8 m, for device for indirect visions of category
II, category III, category V, category VI, the test specified in 5.2 may be exempted;
however, there shall be a visible mark of 1.8 m.
5.1.3 The height of the device for indirect vision and its connecting parts, from the
ground, is less than 1.8 m. However, the test specified in 5.2 may be exempted, when
the projected width of the vertical cross-section, which is formed by the joint with the
vehicle body, does not exceed the projected width of the vehicle. When the width of the
device for indirect vision, in this vertical cross-sectional projection, exceeds the
projected width of the vehicle, BUT does not exceed the maximum vehicle body width
in the forward driving direction, based on this plane, the test specified in 5.2 may be
exempted.
5.1.4 For the device, that is integrally installed on the vehicle body AND whose angle
between the front rotation area and the longitudinal reference plane of the vehicle does
not exceed 45°, OR the device, which protrudes no more than 100 mm relative to the
periphery of the vehicle body, the test specified in 5.2 may be exempted.
5.2 Impact test
5.2.1 Test device
5.2.2 Test requirements
5.3.2 Clamp the other end, to which the load is applied.
5.3.3 Apply a test load of 25 kg. Keep it for 1 min.
5.4 Test judgment
5.4.1 When the impact test is carried out, according to the provisions of 5.2, the
pendulum shall be able to continue to swing for more than 20°, in the release plane of
the swing arm after the impact. This requirement does not apply to mirror, which is
glued to the windshield.
For device for indirect visions of categories II and IV, or categories III and IV installed
on the same support, the pendulum shall be able to continue to swing for more than 10°,
within the release plane of the swing arm after impact.
5.4.2 For the mirror glued to the windshield, when the impact test is carried out
according to the provisions of 5.2, if the support of the mirror is damaged, the remaining
part of the protruding base shall not be greater than 10 mm; the radius of curvature of
the constituent parts c shall meet the requirements of 4.2.1.4.
5.4.3 When tested according to the provisions of 5.2 and 5.3, the reflecting surface of
the mirror shall not be broken; the following two situations are also considered to meet
the requirements.
a) Glass shards remain stuck to the protective case, or to objects firmly attached to
the protective shell. The glass is allowed to be partly detached from the above-
mentioned parts, BUT the length of any side of the crack shall not exceed 2.5 mm.
At the point of impact, small fragments are allowed to escape from the above-
mentioned parts.
b) The reflecting surface is made of safety glass.
5.4.4 For CMS, after the test in 5.2, the lens shall not break.
6 Installation requirements
6.1 General requirements
6.1.1 The following visual field is the visual field under the condition of total visual
field of both eyes. When the field of view is measured, through the window glass, the
vertical total transmittance of visible light shall be at least 70%. However, when two
exterior mirrors are installed, the light transmittance of the rear window glass may be
less than 70%. When measuring the field of view of a vehicle, the measured vehicle of
category M1/N1 shall be the curb weight of the vehicle plus the mass of the driver and
a front passenger (each 75 kg); the measured vehicle of other categories shall be the
curb weight of the vehicle plus the mass of the driver.
6.1.2 The mirror shall be fixed, in such a way that it will not move to significantly
change its field of view, OR the driver will not have an illusion of the image, due to
vibration.
6.1.3 When the vehicle is running at a speed not exceeding 80% of the maximum design
speed and not exceeding 150 km/h, the device for indirect vision shall meet the
requirements of 6.1.2.
6.1.4 If the mirror has several reflecting surfaces at the same time, meanwhile the radii
of curvature of the reflecting surfaces are different from each other OR the reflecting
surfaces form different angles with each other, then at least one reflecting surface shall
meet the field of view and size requirements of the mirror.
6.2 Quantity requirements for device for indirect visions
6.2.1 See Table 4 for the minimum installation quantity requirements of device for
indirect visions; the maximum installation quantity of CMS monitors shall not be
greater than the number of sight mirrors of the corresponding category.
6.2.2 In the case where the CMS is used to provide a field of view, when the ignition
switch is turned on OR the vehicle's main control switch is activated, the relevant field
of view (except for the temporarily adjusted field of view specified in 7.1.4) shall be
permanently visible to the driver. However, when the vehicle is moving backwards OR
moving forward at a speed higher than 10 km/h, the monitor, which is used to display
the device for indirect vision of category VI or a part thereof, can be used to provide
other information.
6.2.3 See Table 5 for the minimum quantity of mirrors installed on the category L
vehicles, which has closed bodywork.
6.3 Location requirements
6.3.1 Category II, category III, category IV, category V, category VI, category VII
mirrors shall be able to observe the specified field of view, from the vehicle side
window or the area wiped by front windshield wiper. This Article does not apply to.
6.3.2 When measuring the field of vision for the category-2 chassis, the vehicle
manufacturer shall provide the maximum and minimum width dimensions of the
vehicle body; the simulated box board may be used for measurement, if necessary.
6.3.3 When determining the position of the category II, category III, category IV,
category VII mirrors or monitors on the driver's side of the vehicle, it shall be ensured
that, the angle -- BETWEEN the longitudinal reference plane of the vehicle AND the
longitudinal vertical plane, which passes through the center of mirror or monitor and
connects the driver's ocular reference point -- is not more than 55°.
6.3.4 When the vehicle is in the maximum design total mass state, the single-side
overhang of the device for indirect vision of the vehicle shall not exceed the vehicle
width by 250 mm.
6.3.5 When the vehicle is in the state of the maximum total design mass, the height of
any part of the category V and category VI mirrors from the ground shall not be less
than 1.8 m. However, for vehicles whose cab height cannot meet the installation height,
category V and category VI mirrors shall not be installed.
6.3.6 When the vehicle is in the state of maximum design total mass, if the surveillance
mirror exceeds the maximum width of the vehicle body, the height of any part of the
surveillance mirror from the ground shall not be less than 1.8 m, OR it shall be
integrated in the shell of the category II and category III mirrors.
6.4 Adjustment requirements for mirror
6.5.2 Category II device (main exterior vision device)
6.5.3 Category III device (main exterior vision device)
6.5.3.1 Category III devices on the driver's side
The driver shall be able to see the area, which is 4 m wide on the horizontal road,
defined by a plane parallel to the longitudinal reference plane of the vehicle and passing
through the outermost point of the vehicle on the driver's side, extending from the
driver's ocular point 20 m behind to the horizon. At the same time, the driver shall be
able to see the area, which is defined by a plane parallel to the longitudinal reference
plane of the vehicle and passing through the outermost point of the vehicle, which starts
from a point 4 m behind the vertical plane passing through the driver's ocular point,
with a width of 1 m (see Figure 8 for the shaded part of the driver's side).
Driver's ocular point
6.5.3.2 Category III devices on the passenger side
The driver shall be able to see the area, which is 4 m wide on the horizontal road,
defined by a plane parallel to the longitudinal reference plane of the vehicle and passing
through the outermost point of the vehicle on the passenger side, extending from the
driver's ocular point 20 m behind to the horizon. At the same time, the driver shall be
able to see the area, which is defined by a plane parallel to the longitudinal reference
plane of the vehicle and passing through the outermost point of the vehicle, which starts
from a point 4 m behind the vertical plane passing through the driver's eyes, with a
width of 1 m (see Figure 8 for the shaded part of the passenger side).
6.5.4 Category IV device (wide-angle field of view device)
6.5.4.1 Category IV devices on the driver's side
The driver shall be able to see a 15 m wide area on a horizontal road surface, which is
defined by a plane parallel to the longitudinal reference plane of the vehicle and passing
through the outermost point of the vehicle on the driver's side, extending to at least 10
m to 25 m behind the driver's ocular point. At the same time, the driver shall be able to
see the area, which is defined by a plane parallel to the longitudinal reference plane of
the vehicle and passing through the outermost point of the vehicle, which starts from a
point 1.5 m behind the vertical plane passing through the driver's ocular point, with a
width of 4.5 m (See the shaded part on the driver's side in Figure 9).
6.5.4.2 Category IV devices on the passenger side
The driver shall be able to see a 15 m wide area on a horizontal road surface, which is
defined by a plane parallel to the longitudinal reference plane of the vehicle and passing
through the outermost point of the vehicle on the passenger side, extending to at least
10 m ~ 25 m behind the driver's ocular point. At the same time, the driver shall be able
to see the area, which is defined by a plane parallel to the longitudinal reference plane
of the vehicle and passing through the outermost point of the vehicle, which starts from
Driver's ocular point
6.5.5 Category V devices (exterior vision device for blindness compensation)
6.5.5.1 The driver shall be able to see the area, which is defined by the following vertical
plane, on the horizontal road surface [see the shaded part in Figure 10a) and Figure
10b)].
6.5.5.2 For vehicles, which have a height above 2.4 m from the ground, at any adjusted
position of the category V mirror or any part of its mounting bracket, the driver shall be
able to see the area, which is defined by the following vertical planes on the horizontal
road surface [see figure 10c) and Figure 10d) for the shaded area].
6.5.5.3 The field of view, which is mentioned in 6.5.5.2, is allowed to be provided by a
combination of device for direct vision and device for indirect visions (category IV,
category V, category VI); the specific requirements are as follows.
a) If the field of view, which is described in 6.5.5.2, is partly provided by a category
IV device, it shall be adjusted, so that it can meet the field of view described in
6.5.4.2 at the same time;
6.5.5.4 It is permissible to use a combination of category V devices and category IV
devices, to provide the field of view, which is specified in 6.5.5.1.In this case, the
category V devices shall provide at least 90% of the field of view, which is specified in
6.5.5.1; meanwhile the category IV shall be adjusted, to enable it to provide the field of
view, which is specified in 6.5.4.2, at the same time.
The provisions of this Article do not apply to category M2 and category M3 vehicles.
6.5.6 Category VI device (forward vision device)
6.5.7 Mirrors for category L motor vehicles with at least a partially enclosed cab
(category VII)
6.5.8 Obstacles
6.6 Requirements for measuring field of view
When measuring the visual field area, a high-luminance light source shall be set at the
driver's ocular point; it shall be determined by detecting the reflected light beam, on the
vertical monitor screen. Other equivalent methods can also be used.
Driver's
7 CMS installation requirements
7.1 Requirements for the installation of CMS from category I ~ category IV
7.1.1 ON/OFF
The ON/OFF strategy of the system shall be described in the user manual. The ON/OFF
process of CMS of category II and category III shall meet the following requirements.
a) The CMS shall be turned on, when the vehicle is opened (such as unlocking the
vehicle, opening a front door, or other operations selected by the manufacturer).
b) Carry out the test, according to the method specified in ISO 16505.After the
vehicle is powered off, the CMS shall be able to continue to run for at least 120 s
(T1). After the T1 time period, within the time T2 = (420 - T1), when the front door
of the vehicle is opened, the CMS shall be able to turn on within 1 s. After the T2
time period, the CMS shall be able to turn on again, within 7 s (e.g., open of any
front door).
Any other means of starting or shutting down the system shall provide proof to the
testing agency, in accordance with Appendix C.
7.1.2 Default field of view
The default field of view shall meet the following requirements.
a) The default field of view of the CMS shall at least meet the requirements of 6.5;
the magnification and resolution shall meet the requirements of 7.1.8 and 7.1.9;
b) For category I mirrors and CMS dual-function systems, the CMS mode shall be
set by the driver; the ON/OFF device shall be placed directly on the mirror.
7.1.3 Adjustable default field of view
The CMS shall allow the user to change the field of view. The adjusted field of view
may not meet the requirements of 6.5, BUT other requirements of the CMS still need
to be met. The adjusted field of view can be restored at the next startup.
7.1.4 Temporary adjustment of field of view
The CMS shall be able to temporarily adjust the field of view, in some special driving
situations, such as lane merging, parking to observe the surrounding conditions of the
vehicle. During the system adjustment process and temporary field of view display, the
requirements of 7.1.8 and 7.1.9 may not be met. The temporary adjustments of field of
view shall have a prompt on the monitor. This function can be manually turned off; it
shall also be explained in the user manual.
7.1.5 Luminance and contrast adjustment
If the CMS luminance and contrast can be adjusted manually, the adjustment
information shall be given in the user manual.
8 Identification of the same type
8.1 The same type of device for indirect vision
Devices, that do not differ in the following main features, are considered to be of the
same type.
- The structure design of the device (such as the connection between the device and
the body).
8.2 Vehicle types associated with device for indirect visions
Motor vehicles, that are identical in the following essential features, are considered to
be of the same type.
9 Transition period for implementation
For models that newly apply for type approval, it shall be implemented from the date
of implementation of this document.
For models that have already obtained type approval, it will be implemented on the 13th
month, from the date of implementation of this document.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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