1、 _ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising ther
2、efrom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2016 SAE International All rights reserved. No part of this
3、publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-49
4、70 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/J2040_201601 SURFACE VEHICLE STANDARD J2040 JAN2016 Issued 1991-06 Revised 2010-
5、04 Reaffirmed 2016-01 Superseding J2040 APR2010 Tail Lamps (Rear Position Lamps) for Use on Vehicles 2032 mm or More in Overall Width RATIONALE J2040 has been reaffirmed to comply with the SAE five-year review policy. SAE INTERNATIONAL J2040 JAN2016 Page 2 of 8 1. SCOPE This SAE Standard provides te
6、st procedures, requirements, and guidelines for tail lamps intended for use on vehicles 2032 mm or more in overall width. Tail lamps conforming to the requirements of this document may also be used on vehicles less than 2032 mm in overall width. 2. REFERENCES 2.1 Applicable Publications The followin
7、g publications form a part of this specification to the extent specified herein. Unless otherwise indicated, the latest issue of SAE publications shall apply. 2.1.1 SAE Publications Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 72
8、4-776-4970 (outside USA), www.sae.org. SAE J387 Terminology Motor Vehicle Lighting SAE J576 Plastic Material for Use in Optical Parts Such as Lenses and Reflectors of Motor Vehicle Lighting Devices SAE J578 Color Specification SAE J759 Lighting Identification Code SAE J1889 L.E.D. Signal and Marking
9、 Lighting Devices SAE J2139 Tests for Lighting Devices, Reflective Devices and Components Used on Vehicles 2032 mm or More in Overall Width 2.2 Related Publications The following publications are provided for information purposes only and are not a required part of this document. Attention is called
10、 to the following documents for additional information on lamp design and installation requirements. 2.2.1 SAE Publications Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. SAE J567 Lamp Bulb
11、Retention System for Requirements and Gages used in Retention System Design SAE J1330 Laboratory Accuracy Guidelines SAE 830566 Motor Vehicle Conspicuity, R. L. Henderson, K. Ziedman, W.J. Burger, and K.E. Cavey, National Highway Traffic Safety Administration SAE INTERNATIONAL J2040 JAN2016 Page 3 o
12、f 8 2.2.2 FMVSS Publications Available from the Superintendent of Documents, U. S. Government Printing Office, Mail Stop: SSOP, Washington, DC 20402-9320. Federal Motor Vehicle Safety Standard 49CFR 571.108 Federal Motor Carrier Safety Administration 49CFR part 393 Subpart B 2.2.3 TMC and TTMA Publi
13、cations Available from the Technology and Maintenance Council, American Trucking Associations, 950 North Glebe Road, Suite 210, Arlington, VA 22203-4181, Tel: (703) 838-1700, . TTMA #RP-9 Location of Lighting Devices for Trailers TMC #RP-702A Trailer Lamp and Reflector Placement TMC #RP-704B Heavy D
14、uty Lighting Systems for Trailers TMC #AV 7-1 Heavy Duty Lighting Systems for Trailers 3. DEFINITIONS 3.1 TAIL LAMP Tail Lamp (Rear Position) - Whether separate or in combination with other lamps, tail lamps are located on both the left and right rear of a vehicle to indicate the presence and width
15、of a vehicle by a steady operating, low intensity light when viewed from the rear. 3.2 The terminology contained in SAE J387 shall apply to this standard. 4. LIGHTING IDENTIFICATION CODE Tail lamps for use on vehicles 2032 mm or more in overall width may be identified by the code “T2” in accordance
16、with SAE J759. 5. TESTS 5.1 Tests for Lighting Devices, Reflective Devices, and Components Used on Vehicles 2032 mm or More in Overall Width SAE J2139 is a part of this document. The following tests are applicable with modification as indicated. 5.1.1 Vibration 5.1.2 Moisture 5.1.3 Dust 5.1.4 Corros
17、ion SAE INTERNATIONAL J2040 JAN2016 Page 4 of 8 5.1.5 Photometry Photometric measurements shall be made with the light source of the device at least 3 m from the photometer. 5.1.5.1 The H-V axis of the device shall be taken to be parallel to the longitudinal axis of the vehicle, when the device is m
18、ounted in its design position. 5.1.5.2 Photometric measurements shall be made with the light source steadily burning. Photometric measurements of multiple lamp arrangements may be made by either of the following methods. 5.1.5.2.1 All lamps shall be photometered together provided that a line from th
19、e light source of each lamp to the center of the photometer sensing device does not make an angle of more than 0.6 degrees with the photometer H-V axis. When lamps are photometered together, the H-V axis shall intersect the midpoint between the extreme light sources. 5.1.5.2.2 Each lamp shall be pho
20、tometered separately by aligning the axis of each lamp with the axis of the photometer. The photometric measurement for the entire multiple lamp arrangement shall be determined by adding the photometric outputs from each individual lamp at its corresponding test point. 5.1.5.3 The test methods and p
21、rocedures of SAE J1889 shall also be applied if LED light sources are present in the lamp. 5.1.6 Warpage Test on Devices with Plastic Components 5.2 Color SAE J578 is a part of this document. 5.3 Plastic Materials SAE J576 is a part of this document. 6. REQUIREMENTS 6.1 Performance Requirements The
22、device when tested in accordance with the test procedures of this document shall meet the requirements of SAE J2139 or as indicated. 6.1.1 Vibration 6.1.2 Moisture 6.1.3 Dust 6.1.4 Corrosion 6.1.5 The lamp shall be designed to conform to the zone total photometric requirements of Figure 1 and its fo
23、otnotes. The summation of the luminous intensity measurements at the test points in a zone shall be at least the value shown. 6.1.5.1 An arrangement of lamps may be used to meet the photometric requirements of Figure 1 provided the distance between adjacent light source does not exceed 560 mm for tw
24、o lamp arrangements or does not exceed 410 mm for multiple lamp arrangements. If the distance between light sources exceeds those distances detailed previously then, each lamp shall individually comply with the photometric requirements of Figure 1. SAE INTERNATIONAL J2040 JAN2016 Page 5 of 8 FIGURE
25、1 - PHOTOMETRIC REQUIREMENTS MINIMUM LUMINOUS INTENSITY (cd) SAE INTERNATIONAL J2040 JAN2016 Page 6 of 8 6.1.5.2 When a tail lamp is combined with the stop lamp or turn signal lamp, the stop lamp or turn signal lamp intensity shall be not less than three times the luminous intensity of the tail lamp
26、 at any test point, except that at H-V, H-5L, H-5R, and 5U-V, the stop lamp or turn signal lamp intensity shall be not less than five times the luminous intensity of the tail lamp. When a tail lamp is combined with the stop lamp or turn signal lamp, and the maximum luminous intensity of the tail lam
27、p is located below the horizontal and is within an area generated by a 1.0 degree radius around the test point, the ratio for the test point may be computed using the lowest value of the tail lamp intensity within the generated area. 6.1.6 Warpage 6.2 Color The color of the light measured from the t
28、ail lamp shall meet red as specified in SAE J578. 6.3 Plastic Materials The plastic materials used in the optical parts shall meet the requirements of SAE J576. 6.4 Design Requirements 6.4.1 If a tail lamp is optically combined with a stop lamp or a turn signal lamp and a replaceable multiple light
29、source is used, the light source retention system shall be designed with an indexing means so that the light source is properly indexed. Removable light source retention systems shall have an indexing feature so that they cannot be reinserted into the lamp housing in a random position, unless the la
30、mp will perform its intended function with random light source orientation. 6.4.2 The effective projected luminous lighted lens area of a single lamp shall be at least 75 cm2. 6.4.3 A tail lamp shall not be optically combined with a clearance lamp. 6.5 Installation Requirements The tail lamp shall m
31、eet the following requirements as installed on the vehicle. 6.5.1 The tail lamps shall be mounted on the permanent structure of the vehicle, facing rearward, at the same height and spaced as far apart laterally as practicable, so that the signal will be clearly visible. 6.5.2 Each tail lamp shall be
32、 designed to comply with all photometric requirements of Figure 1 with all vehicular obstructions considered. 6.5.3 Each tail lamp installed shall comply with one of the following visibility requirements. (Left hand shown, right hand symmetrically opposite) 6.5.3.1 Each tail lamp must provide a mini
33、mum of 13 cm2of unobstructed projected area when the light emitting surface area of the lens, excluding reflex reflector area, is projected parallel to a horizontal plane in any direction from 45 degrees outboard to 45 degrees inboard of the vehicle longitudinal axis, and parallel to a longitudinal
34、vertical plane from 15 degrees above to 15 degrees below the horizontal; (see Figure 2). SAE INTERNATIONAL J2040 JAN2016 Page 7 of 8 FIGURE 2 - TAIL LAMP VISIBILITY REQUIREMENTS - UNOBSTRUCTED PROJECTED AREA 6.5.3.2 The lamp must provide a minimum luminous intensity of 0.05 cd throughout the photome
35、tric pattern defined by the corner points specified as follows: 15 degrees above horizontal: 45 degrees inboard and 80 degrees outboard. 15 degrees below * horizontal: 45 degrees inboard and 80 degrees outboard (see Figure 3) FIGURE 3 - TAIL LAMP VISIBILITY REQUIREMENTS - LUMINOUS INTENSITY 7. GUIDE
36、LINES 7.1 Installation Guidelines 7.1.1 Performance of lamps may deteriorate significantly as a result of dirt, grime, snow, and ice accumulation on the optical surfaces, therefore installation of the device on the vehicle should be considered to minimize the effects of these factors. 7.1.2 When det
37、ermined that the device must perform in extremely severe environments, or when it is expected to be totally immersed in water, the user should specify devices specifically designed for such use. 7.1.3 The luminous intensity of the light source may vary with applied voltage, therefore consideration o
38、f the electrical wiring design should be to supply adequate lamp voltage. SAE INTERNATIONAL J2040 JAN2016 Page 8 of 8 8. NOTES 8.1 Marginal Indicia A change bar (l) located in the left margin is for the convenience of the user in locating areas where technical revisions, not editorial changes, have
39、been made to the previous issue of this document. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only. PREPARED BY THE SAE HEAVY-DUTY LIGHTING STANDARDS COMMITTEE
