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GB 15084-2022: Motor vehicles -- Devices for indirect vision -- Requirements of performance and installation
GB 15084-2022
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
Appendix A (Normative) Test method of reflectivity ... 47
Appendix B (Normative) Test method for radius of curvature of mirror reflecting
surface ... 53
Appendix C (Normative) Test methods and safety provisions for CMS of category I to
category IV ... 55
Appendix D (Normative) Calculation of detection distance for CMS of category V and
category VI ... 65
Appendix E (Normative) Determination of CMS display object size of category V and
category VI ... 69
Motor vehicles - Devices for indirect vision - Requirements
of performance and installation
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.
3.1
Device for indirect vision
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
4.2.2.2.2.1 Use the spherical gauge, which is specified in Appendix B, to measure the
radius of curvature ri, which is parallel to the horizontal direction of the line segment of
length b, AND the radius of curvature ri' perpendicular to the vertical direction of the
line segment of length b, through the center of the reflecting surface. Calculate the
arithmetic mean rp of ri' and ri, rp = (ri + ri')/2.
4.2.2.2.2.2 The difference -- between the radius of curvature -- meets the following
requirements:
a) When the r value of the mirror's reflecting surface is less than 3000 mm, the radius
of curvature ri' OR the difference between ri and rp shall not be greater than 0.15r;
b) When the r value of the mirror's reflecting surface is less than 3000 mm, the
difference between rp and r, at any point, shall not be greater than 0.15r;
c) When the r value of the reflecting surface of the mirror is not less than 3000 mm,
the difference -- between the radius of curvature mentioned in a) and b) -- shall
not be greater than 0.25r.
4.2.2.2.2.3 The additional aspheric reflecting surface, on the reflecting surface, meets
the following requirements:
a) The width of the additional aspherical reflecting surface shall be at least 30 mm;
b) The radius of curvature ri of the additional aspherical part shall not be less than
150 mm.
4.2.2.2.2.4 Measure according to the method specified in Appendix B. The r value of
the reflecting surface meets the following requirements:
a) For category I mirrors (interior mirrors), category II and category III mirrors (main
exterior mirrors), it shall not be less than 1200 mm;
b) For category IV mirrors (wide-angle exterior mirrors) and category V mirrors
(replenishment exterior mirrors), it shall not be less than 300 mm;
c) For category VI mirrors (front mirrors), it shall not be less than 200 mm;
d) For category VII mirrors, it shall not be less than 1000 mm and not more than
1500 mm.
4.3 CMS
4.3.1 General requirements
4.3.1.1 The CMS shall be adjustable, without the use of tools.
4.3.1.2 Install the CMS at the design position, which is specified by the manufacturer.
At any adjustable position, the radius of curvature of the constituent parts c of the
following parts shall not be less than 2.5 mm:
a) All parts of the CMS and components, which are installed inside the vehicle that
can be in contact with a sphere, which has a diameter of 165 mm, including the
part that remains connected to the bracket;
b) All parts of the CMS and components, which are installed outside the vehicle that
can be in contact with a sphere, which has a diameter of 100 mm, including the
part that remains connected to the bracket.
4.3.1.3 Determine the size of the protruding part, according to the method specified in
4.2.1.5. The outer surface, which has a protruding height greater than or equal to 1.5
mm and less than or equal to 5 mm, shall be chamfered; the outer surface, which has a
protruding height greater than 5 mm, shall comply with the requirements of 4.3.1.2.
4.3.1.4 The requirements of 4.3.1.2 do not apply, if the edges of the fixing holes or
recesses, which have a diameter or maximum diagonal length less than 12 mm on the
CMS, have been chamfered.
4.3.1.5 The cylinder, which uses the rotation axis of the CMS as the center of rotation
AND has a radius of 70 mm, shall at least be tangent to the base or body surface, to
which the CMS connector is connected, except for CMS, whose minimum installation
height is higher than 1.8 m.
4.3.1.6 If the Shore hardness of the camera and monitor components is not greater than
60 HA and they are installed on a rigid bracket, the requirements of 4.3.1.2 are only
applicable to the rigid bracket.
4.3.1.7 If the vehicle monitor complies with the provisions of GB 11552, it is deemed
to meet the requirement...