GB 11566-2024 External projections for passenger cars
1 Scope
This document specifies general requirements, special requirements and test methods for external projections for vehicles of category M1.
This document is applicable to vehicles of category M1.
This document is not applicable to external devices for indirect vision and traction devices.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions 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 15084-2022 Motor vehicles - Devices for indirect vision - Requirements of performance and installation
GB/T 15089 Classification of power-driven vehicles and trailers
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 15089 and the following apply.
3.1
front hood
lid of the powertrain compartment and/or luggage compartment located in front of the windshield
3.2
external surface
visible surface on the exterior of the vehicle
Note: This includes the front hood, luggage compartment lid, doors, fenders, roof, lighting and light signal devices, and visible stiffening ribs.
3.3
floor line
geometric trajectory formed by the continuous contact points between a cone with a half angle of 30° and the lowest contactable positions on the external surface of a laden vehicle
Note 1: The cone height may be determined at your discretion, based on the principle of convenient operation, with the apex upward and the axis perpendicular to the horizontal plane.
Note 2: When determining the floor line, factors such as jack support points, exhaust pipes or wheels are not considered. The gap between the wheel and the wheel arch may be imagined as smoothed out, and the bumper shall be considered when determining the floor line at both ends of the vehicle. For a specific vehicle model, the contact points may be at the bumper ends or the panel below the bumper. If there are two or more contact points, take the lowest to determine the floor line.
3.4
radius of curvature
radius of the arc of the circle which approximates most to the curved form of the part in question
3.5
laden vehicle
vehicle loaded to its maximum permissible mass
Note: For vehicles equipped with hydraulic, pneumatic, or air suspension systems, or automatic leveling devices that vary with load, load the vehicle according to the most unfavorable condition under normal traveling specified by the manufacturer.
3.6
extreme outer edge
for the side of the vehicle, it refers to the two planes parallel to the Y-plane of the vehicle and tangent to the outermost edges of the sides; for the front/rear end, it refers to the vertical transverse planes parallel to the X-plane of the vehicle and tangent to the outermost edges of the front/rear
Note: The following protrusions are not considered when determining the extreme outer edge:
——Tire-ground contact area and tire valve;
——Anti-skid devices mounted on the wheels;
——Devices for indirect vision;
——Side turn signals, end outline marker lamps, front and rear (side) position lamps, and parking lamps;
——Parts mounted on the front/rear bumpers of the vehicle;
——Traction devices and exhaust pipes.
3.7
the dimension of the projection
dimensions of part projections mounted on the external surface of the vehicle
3.8
the nominal line of a panel
the line connecting the centers of the sphere (100 mm in diameter) at the first and last positions in contact with the surface of a part when measured according to the method specified in 6.2.2
3.9
aerial
device used for transmitting and/or receiving electromagnetic signals
3.10
bumper
lower external member at the front or rear of the vehicle
Note: This includes all structures and accessories to protect the vehicle in the event of low-speed frontal or rear collisions
3.11
bumper cover
non-rigid external surface of the bumper
3.12
surveillance camera-monitor-recording device
cameras, monitors or recording devices installed inside or outside the vehicle for observing the fields of vision not covered by GB 15084, or for monitoring the interior or surroundings of the vehicle for safety purposes
Note: This excludes the camera-monitor system defined in GB 15084-2022, 3.12.
3.13
surveillance mirror
mirror intended to provide additional fields of vision, which can be mounted on the external surface or in the passenger compartment of a vehicle
[Source: GB 15084-2022, 3.5]
4 General requirements
4.1 Vehicles must comply with the requirements of 4.2 to 4.6 in both stationary and driving conditions unless otherwise specified in Clause 5.
4.2 For a laden vehicle with doors, windows, and various entry covers closed, this document shall apply to the following external parts:
——Parts not higher than 2 m aboveground;
——Parts not lower than the floor line;
——Parts that can be touched by a sphere with a diameter of 100 mm.
4.3 The external surface of the vehicle shall be free of any outward-facing sharp parts or projections that could increase the risk of scrapes or crush injuries in a collision due to their shape, dimension, orientation, or hardness.
4.4 The external surface of the vehicle shall be free of any outward-facing parts that may scratch people such as pedestrians, bicyclists or motorcyclists.
4.5 The radius of curvature of the projecting parts on the external surface of the vehicle shall not be less than 2.5 mm.
Note 1: This provision is not applicable to parts projecting by no more than 1.5 mm, nor to parts projecting by more than 1.5 mm and less than 5 mm but with smooth outward surface.
Note 2: This provision does not apply to circumstances where the width of the gap between fixed or movable elements on the grille (including parts of the air intake and outlet ducts and the radiator cover) is less than 40 mm.
4.6 When the material hardness of external projecting parts on the vehicle does not exceed 60 HA, the radius of curvature may be less than 2.5 mm.
Contents Foreword III 1 Scope 2 Normative references 3 Terms and definitions 4 General requirements 5 Special requirements 6 Test method 7 Determination of the same type 8 Implementation of this standard
