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 entirelyvoluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefro
2、m, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions.Copyright 2007 SAE InternationalAll rights reserved. No part of this publication may be
3、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: 724-776-4970 (outside USA)Fax: 724-
4、776-0790Email: CustomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSURFACEVEHICLERECOMMENDEDPRACTICEJ392REAF.NOV2007Issued 1969-12Reaffirmed 2007-11Superseding J392 JAN2003Motorcycle and Motor Driven Cycle Electrical System Maintenance of Design Voltage1. ScopeThis SAE Recommended Practice perta
5、ins to electrical systems of motorcycles both with and withoutbatteries.1.1 PurposeThis document provides minimum illumination voltage values for all motorcycle classifications asspecified in SAE J213 describes test procedures to determine that these voltages are maintained. 2. Reference2.1 Applicab
6、le PublicationThe following publication forms a part of the specification to the extent specifiedherein. Unless otherwise indicated, the latest version of SAE publications shall apply. 2.1.1 SAE PUBLICATIONAvailable from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001.SAE J213Motorcycle Class
7、ifications3. Test Apparatus3.1 Voltmeter0 to 20 V maximum full-scale deflection, accuracy 1/2% (two voltmeters required).3.2 AmmeterCapable of carrying full system load current. Accuracy 3% Full Scale.3.3 Means for Measuring Engine rpmAccuracy 3% Full Scale.4. Test Procedure4.1 Install fully charged
8、 original equipment or equal battery on the motorcycle (if motorcycle is battery equipped).4.1.1 Maintain battery temperature at 27 C 6 C (80 F 10 F).4.2 Connect one voltmeter between the headlamp low beam terminal and the ground; connect the other voltmeterbetween the tail lamp terminal and the gro
9、und.4.3 Connect the ammeter in series with the battery.NOTEDisregard 4.3 for motorcycles without batteries.SAE J392 Reaffirmed NOV2007-2-4.4 Start engine and turn on headlamp(s).4.4.1 Switch headlamp to the low beam position.4.4.2 External fan cooling may be applied to the motorcycle engine.4.5 Run
10、the engine at an rpm equivalent to 50 km/h 2 km/h (30 mph) in top gear for 10 min.4.5.1 Record the lowest and highest headlamp voltage and tail lamp voltage observed during the 10 min period.4.6 Run the engine at an rpm equivalent to 90 km/h 2 km/h (55 mph) in top gear for 10 min.4.6.1 Record the lo
11、west and highest headlamp voltage and taillamp voltage observed during the 10 min period.4.7 Increase speed to manufacturers suggested maximum rpm.4.7.1 Record the highest and lowest headlamp and tail lamp voltages observed during a 5 s period.4.8 Run the engine at manufacturers rated idle speed for
12、 10 min.4.8.1 Record the lowest and highest tail lamp voltage observed during the 10 min period.4.8.2 Record the lowest and highest headlamp voltage observed during the 10 min period.4.9 Slowly increase the engine speed until generating equipment cancels the system load, indicated by “0“ readingon t
13、he ammeter.NOTEDisregard 4.9 for motorcycles without batteries.4.9.1 Record the engine rpm at ammeter zero point.5. Test Limits5.1 Voltages recorded in 4.5.1, 4.6.1, 4.7.1, and 4.8.1 shall be between 90 and 120% of the rated headlamp designvoltage.5.2 Voltages recorded in 4.8.2 shall be between 60 a
14、nd 120% of the rated headlamp design voltage.5.3 Engine rpm recorded in 4.9.1 shall be less than the motorcycle equivalent speed at 50 km/h 2 km/h (30 mph)in top gear operation as defined in 4.5.6. Notes6.1 Marginal Indicia The change bar (l) located in the left margin is for the convenience of the
15、user in locatingareas where technical revisions have been made to the previous issue of the report. An (R) symbol to the left ofthe document title indicates a complete revision of the report.PREPARED BY THE SAE MOTORCYCLE COMMITTEEREAFFIRMED BY THE SAE MOTORCYCLE TECHNICAL COMMITTEESAE J392 Reaffirm
16、ed NOV2007RationaleChanges to this documenta. Section 1.1Motor Driven Cycles was replaced by referencing SAE J213-Motorcycle Classificationsb. Section 2.1SAE J213 was added as an applicable publicationc. Section 4.1.1, 4.5, 4.6Metric values were specified in whole numbers for more meaningful valuesi
17、n testingd. Section 1, 4.3, 4.9”Batteryless” term was removed to improve the technical languagee. Electrical Systems Subcommittee was removed.Relationship of SAE Standard to ISO StandardNot applicable.ApplicationThis SAE Recommended Practice pertains to electrical systems of motorcycles both with andwithout batteries.Reference SectionSAE J213Motorcycle ClassificationsDeveloped by the SAE Motorcycle Committee
