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 there
2、from, 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 2017 SAE International All rights reserved. No part of this p
3、ublication 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: +1 724-776-497
4、0 (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:/standards.sae.org/J3098_201706 SURFACE VEHICLE RECOMMENDED PRACTICE J3098 JUN2017 Issued 2017-06 Front Decorative
5、 Lamp RATIONALE The subject of “Vehicle Signature/Accent Lighting” was brought up for discussion during the “New Business” portion of the September 17, 2014 Signaling and Marking Devices Standards Committee Meeting held in Sacramento, California. It was noted that some vehicle manufacturers had begu
6、n installing exterior lighting devices intended only to be decorative in nature on their vehicles. Examples at that time included white lighting elements on the front of vehicles with intensity levels greater than parking lamps, but lower than daytime running lamps. These lamps had sometimes been re
7、ferred to as “signature lamps” or “accent lamps”. This type of lighting function was not covered by an SAE Recommended Practice or SAE Standard. The Signaling and Marking Devices Standards Committee agreed a Task Force should be established to pursue an SAE Recommended Practice for this subject. As
8、the SAE J3098 Task Force began discussions on what the scope of the document should be, the members voted in favor of a limited scope to address only decorative lighting intended to be installed on the front of vehicles. Task Force members generated a list of questions to be addressed during the dev
9、elopment of SAE J3098 that included: Was it necessary to distinguish between “Signature Lamps” for daytime use and “Accent Lamps” for night time use? Was it necessary to include tests typically associated with legally required exterior lighting devices (e.g., Moisture, Dust, Corrosion, etc.)? Should
10、 signature lamps turn off when front position lamps are turned on? How best to account for the possibility of illuminated vehicle identification badges? Was it necessary to limit the color to white or yellow? Should “Signature/Accent Lamps” be deactivated on the side of a flashing turn signal (e.g.,
11、 requirements similar to daytime running lamps)? Should there be a restriction on the number of front decorative lamps that could be installed? Should front decorative lamps be prevented from flashing or displaying motion (e.g., scrolling words, images, or patterns)? While discussing the above list
12、of questions, Task Force members debated whether this proposed Recommended Practice was really necessary. The concern raised was that SAE would be endorsing supplemental front lamps that do not provide a safety benefit. This concern was minimized when it was acknowledged that SAE has standards and r
13、ecommended practices for many types of lighting devices not regulated as safety devices by federal governments in the NAFTA market (e.g., front fog lamps, front cornering lamps, side turn signal lamps, spot lamps, rear fog lamps, rear cornering lamps, cargo lamps, etc.). Task Force members acknowled
14、ged that a key point of these “Signature/Accent Lamps” would be they must not impair the effectiveness any regulated lighting devices. The subject of impairment would be added to the Scope section. During the development of SAE J3098, much discussion occurred about what to name these front lighting
15、devices that are intended to be installed only for decorative purposes. Task Force members eventually would conclude it was not necessary to distinguish between “Signature Lamps” for daytime use and “Accent Lamps” for nighttime use. It was suggested to use the term “Front Decorative Lamp” and not th
16、e terms “Signature Lamp” and “Accent Lamp” that were included in previous draft versions of the SAE J3098 document. The final consensus of the committee was to use the term “Front Decorative Lamp” with the reasoning that the term “signature” should be reserved for future usage related to the recogni
17、tion and/or identification of vehicles. With the adoption of the term “Front Decorative Lamp”, the SAE J3098 document would be written to provide different maximum candela intensity levels to account for daytime use (higher intensity) or nighttime use (lower intensity). SAE INTERNATIONAL J3098 JUN20
18、17 Page 2 of 6 A concern was discussed that when used in low ambient light conditions, front decorative lamps illuminated together with headlamps, front position lamps, and front fog lamps on the front of a vehicle could possibly present excessive amounts of light for other road users. The maximum l
19、uminous intensity of 125 candela in the region from the horizontal axis of the lamp upward, and maximum 250 candela in the region below the horizontal axis was chosen for low ambient light conditions because these are the same maximum candela requirements for front position lamps. There have been ma
20、ny vehicles in the NAFTA market with supplemental front position lamps installed for styling purposes. Task Force members were not aware that any of these vehicles raised concerns during night time illumination of their front lighting about excessive amounts of light being presented to other road us
21、ers. Task Force members also discussed front decorative lamp illumination in high ambient light conditions when daytime running lamps may also be present and activated. The 300 candela maximum requirement for front decorative lamps used in high ambient light conditions was chosen because several sta
22、tes in the U.S. place restrictions on motor vehicle lamps or illuminating devices that project a beam of light with intensities brighter than 300 candlepower. It was also known that illuminated front position lamps may not have intensity levels that would allow them to be seen as lighted in a bright
23、, mid-day sun environment. The Task Force concluded it would not serve any purpose to place candela limits on front signature lamps used in daytime similar to those used for front position lamps if the lamp illumination could not be detected in bright sun light. Also, it was concluded that having fr
24、ont decorative lamps illuminated in addition to daytime running lamps would improve the conspicuity of a vehicle from the front when headlamps are not required for driving, which is the purpose of daytime running lamps. The Task Force also reached consensus that the different daytime and night time
25、intensity levels of front decorative lamps could be set in relation to activation of the vehicles front position lamps or headlamps. The Task Force also agreed that it was not necessary to limit the quantity of front decorative lamps. However, the Task Force concluded that a requirement that all fro
26、nt decorative lamps measured together shall not exceed the photometry maximum requirements would be added to the SAE J3098 document. The lighting identification code “B” was designated for front decorative lamps. It was suggested different marking codes should be used to account for daytime, nightti
27、me, or both light intensity levels of the front decorative lamps (e.g., B for front decorative lamps with both daytime and nighttime intensities, B1 for front decorative lamps with only a daytime intensity, and B2 for front decorative lamps with only a nighttime intensity). The Task Force concluded
28、the multiple designations would add unnecessary complexity to lamp codes and marking for this type of lamp. The decision was made to use only the lighting identification code “B” for these types of lamps. In discussing if it was necessary to include tests typically associated with legally required e
29、xterior lighting device (e.g., Moisture, Dust, Corrosion, etc.), the Task Force concluded that these tests should be included because vehicle manufacturers would want to ensure front decorative lamps have been tested in a manner to ensure customers do not experience failures of these type lamps when
30、 installed on vehicles. The Task Force discussed one of the original concepts that decorative front lamps should not flash or display motion (e.g., scrolling words, images, or patterns). It was suggested that a phrase similar to “while the vehicle is moving” be added to the “should not flash or disp
31、lay motion” concept. This would permit light pattern sequences (e.g., stationary vehicle welcoming the driver) upon key fob activation. However, a concern was still raised about stationary, but running, vehicle situations (e.g., stopped vehicles at traffic lights and stop signs on public roadways).
32、Members of the Task Force reviewed a suggestion that time limits should be added for the implied allowance for flashing or blinking patterns of front signature lamps prior to the vehicle being set in motion for the first time (e.g., light pattern sequences on a stationary vehicle intended to welcome
33、 the driver upon key fob activation). The consensus of the Task Force was to not pursue activation time limits for the period prior to the vehicle being set in motion for the first time. It was concluded the appropriate way to address the concern about front decorative lamps that might flash or disp
34、lay motion would be to use the following wording in the Activation and Switching section of this document: “A front decorative lamp(s) shall emit steady light once the vehicle has been set in motion for the first time after the driver activates the device which starts the propulsion system.” In disc
35、ussing whether front decorative lamps should be deactivated on the side of a flashing turn signal, the Task Force concluded these types of lamps should follow the SAE guidelines for daytime running lamps deactivation based on lamp location with respect to front turn signals. This information was add
36、ed to the Activation and Switching section of the document. SAE INTERNATIONAL J3098 JUN2017 Page 3 of 6 Color restriction of front decorative lamps was reviewed. A review of individual State vehicle regulations found several States that restrict the color of an auxiliary light to white or amber if t
37、he light is installed on the front of the vehicle. It was discussed that some vehicle stylists may have a desire to install lighted devices in various colors on the front of vehicles (e.g., lighted badges for brand identification). The Task Force concluded the color front decorative lamps should be
38、restricted to white or yellow. This would align with several State vehicle regulations that restrict the color of auxiliary front lamps installed on vehicles. 1. SCOPE This SAE Recommended Practice applies to a decorative lamp(s) installed on the front of motor vehicles. This lamp(s) is intended onl
39、y to be decorative and is not to impair the effectiveness of any required lighting device. This recommended practice establishes uniformity in use guidelines for the performance, installation, activation and switching of a front decorative lamp(s). 2. REFERENCES 2.1 Applicable Documents The followin
40、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 International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and
41、 Canada) or +1 724-776-4970 (outside USA), www.sae.org. SAE J575 Test Methods and Equipment for Lighting Devices for Use on Vehicles Less than 2032 mm in Overall Width SAE J576 Plastic Material or Materials for Use in Optical Parts Such as Lenses and Reflex Reflectors of Motor Vehicle Lighting Devic
42、es SAE J578 Color Specification SAE J759 Lighting Identification Code 2.2 Related Publications The following publications are provided for information purposes only and are not a required part of this SAE Technical Report. 2.2.1 SAE Publications Available from SAE International, 400 Commonwealth Dri
43、ve, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org. SAE J567 Light Source Retention System SAE J1889 L.E.D. Signal and Marking Lighting Devices SAE J2139 Tests for Signal and Marking Devices Used on Vehicles 2032 mm or More in Overa
44、ll Width 3. DEFINITIONS 3.1 FRONT DECORATIVE LAMP(S) Auxiliary lighting device(s) installed on the front of a vehicle providing white or yellow light for aesthetic or brand identification purposes. SAE INTERNATIONAL J3098 JUN2017 Page 4 of 6 4. LIGHTING IDENTIFICATION CODE A front decorative lamp(s)
45、 may be identified by the code “B” in accordance with SAE J759. 5. TESTS 5.1 SAE J575 is a part of this document. The following tests are applicable: 5.1.1 Vibration Test 5.1.2 Moisture Test 5.1.3 Dust Test 5.1.4 Corrosion Test 5.1.5 Photometry Test 5.1.5.1 Photometric measurements shall be made wit
46、h light source of the lamp at least 3 m from the photometer. The H-V axis shall be taken as parallel to the axis of reference of the lamp as mounted on the vehicle. 5.1.6 Warpage Test for Devices with Plastic Components 5.2 Color Test SAE J578 is a part of this document. 5.3 Materials SAE J576 is a
47、part of this document. 6. REQUIREMENTS 6.1 Performance Requirements A device, when tested in accordance with the test procedures specified in Section 5, shall meet the following requirements with the modifications indicated: 6.1.1 Vibration SAE J575. 6.1.2 Moisture SAE J575. 6.1.3 Dust SAE J575. 6.1
48、.4 Corrosion SAE J575. SAE INTERNATIONAL J3098 JUN2017 Page 5 of 6 6.1.5 Photometry 6.1.5.1 When front position lamps or headlamps are not active, the maximum photometric intensity shall not exceed 300 candela. 6.1.5.2 When front position lamps or headlamps are active, the maximum photometric intens
49、ity shall not exceed 125 candela. 6.1.5.3 If multiple separate front decorative lamps are used, the light output of all the front decorative lamps on each half of the vertical centerline of the vehicle measured together shall not exceed the maximums stated above. 6.1.6 Warpage SAE J575. 6.2 Color The color of light from a front decorative lamp(s) shall be white or yellow as specified in SAE J578. 6.3 Materials Plastic materials used in th
