SAE J2191-2002 Recommended Practice for Identification of Standardized Truck and Tractor Electrical Circuits.pdf
《SAE J2191-2002 Recommended Practice for Identification of Standardized Truck and Tractor Electrical Circuits.pdf》由会员分享,可在线阅读,更多相关《SAE J2191-2002 Recommended Practice for Identification of Standardized Truck and Tractor Electrical Circuits.pdf(9页珍藏版)》请在三一文库上搜索。
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 therefr
2、om, 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 2002 Society of Automotive Engineers, Inc. All rights reserved. No part of
3、this 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: 724-776-4
4、970 (outside USA) Fax: 724-776-0790 Email: custsvcsae.org SAE WEB ADDRESS:http:/www.sae.org SURFACE VEHICLE RECOMMENDED PRACTICE J2191 REAF. DEC2002 Issued1997-02 Reaffirmed 2002-12 Superseding J2191 FEB97 Recommended Practice for Identification of Standardized Truck and Tractor Electrical Circuits
5、1.ScopeThis SAE Recommended Practice defines a recommended practice for implementing circuit identification for the circuits of the power and signal distribution systems of the Class 8 trucks and tractors. This document provides a description of a supplemental circuit identifier that shall be utiliz
6、ed in conjunction with the original equipment manufacturers primary circuit identification as used in wire harnesses but does not include electrical or electronic devices which have pigtails. The supplemental circuit identifier is cross- referenced to a specified subsystem of the power and signal di
7、stribution system identified in Section 5. 1.1PurposeThis document will provide a common method of identifying circuit function for commercially available Class 8 vehicles. It will guide the service technician in diagnosing vehicle electrical subsystems. The identification method will supplement com
8、ponent OEM circuit identification for each major subsystem. 2.References 2.1Applicable PublicationsThe following publications form a part of this specification to the extent specified herein. Unless otherwise indicated, the latest issue of SAE publications shall apply. 2.1.1SAE PUBLICATIONSAvailable
9、 from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001. SAEJ1587Joint SAE/TMC Electronic Data Interchange Between Microcomputer Systems in Heavy- Duty Vehicle Applications SAEJ1708Serial Data Communications Between Microcomputer Systems in Heavy-Duty Vehicle Applications SAEJ1922Powertrain Con
10、trol Interface for Electronic Controls Used in Medium and Heavy-Duty Diesel On-Highway Vehicle Applications SAE J1939/11Physical Layer250K bits/s, Twisted Shielded Pair 3.Definitions 3.1Electrical CircuitAn electrical circuit includes all of the components and connecting cables, starting from the el
11、ectrical energy source, going to the functional component(s) and the return route through the energy source. 3.2GroundAn electrical conductor used as a common return for an electric circuit(s) and with a relative zero potential. SAE J2191 Reaffirmed DEC2002 -2- 3.3HarnessA group of two or more cable
12、s bundled together. 3.4WiringCollectively, the cable, terminations, and supporting accessories used in the electrical distribution system. 3.5Original Equipment ManufacturerTruck/Engine/Transmission/etc. Manufacturer 4.Circuit Identification System 4.1Primary Circuit IdentificationThe OEM method of
13、circuit identification will be known as the primary circuit identification system. 4.2Supplemental Circuit IdentificationThe supplemental circuit identification system is a four character code with the first two characters referencing a general subsystem and the second two characters referencing a m
14、ore specific circuit function. The subsystems and circuit functions can be found in the list of general categories shown as follows: a.Braking/Traction System (Air System) b.Charging c.Control (Fuel, Engine, Cruise) d.Emergency/Vision e.Engine Accessories f.Ground g.HVAC h.Instrumentation, Monitorin
15、g (Warning Systems) i.Lighting Systems j.Operator Convenience, Entertainment, Navigation, Accessories k.Power l.Serial/Data Communication m. Trailer Systems n.Transmission and Drive Train (Rear Axles) 4.3SeparatorThe “#” character is to be used to separate the primary OEM circuit identifier from the
16、 supplemental suffix. The single space on each side of the “#” character is required for improved clarity. 4.4ApplicationThe methods used to apply the supplemental circuit identification to the cables shall be specified by the OEMs. 4.4.1TESTThe application durability of the supplemental circuit cha
17、racters must meet the OEMs specification for abrasion and fluid resistance. 4.5Application to Technical DocumentThe individual OEM shall determine the documents by which the supplemental circuit identification information will be furnished to their service organization. 4.6ExampleThe primary OEM cir
18、cuit identifier C123 would be supplemented with #1512 to indicate the type of subsystem and circuit function as in Figure 1: SAE J2191 Reaffirmed DEC2002 -3- FIGURE 1EXAMPLE OF CIRCUIT IDENTIFICATION 5.SAE Procedure for General Subsystem Identification (GSID) and Specific Circuit Identification (SCI
19、D) Assignment 5.1PurposeTo outline the procedure for the assignment of additional GSID and SCID elements within this document. 5.2GeneralGSIDs and SCIDs will be requested using the request form shown in Figure 2. All requests for GSIDs and SCIDs will be processed by the SAE Staff. A confirmation of
20、the request form will be sent to the requester stating the date the form will be reviewed. 5.3Verification of RequestThe request form will be reviewed to ensure all required fields are provided by the requester. If information is missing, the request form shall be returned to the requester asking fo
21、r additional information. If the information is complete, SAE will complete the form by filling in the date and time of the next SAE Truck and Bus Wiring and Connector meeting. They will make two copies of the request form. Send the original copy to the Chairman of the Truck and Bus Wiring and Conne
22、ctor Committee for review and committee approval, file one copy in a SAE staff maintained file of requests, and send a copy of the request to the requester. The SAE Truck and Bus Wiring and Connector Committee Chairman may self approve the request or if he has concerns or questions, will present the
23、 request at the next Truck and Bus Wiring and Connector meeting. The completed request form will be sent to the SAE Staff. The SAE Staff will verify that all requests were satisfied and notify the requester by sending a copy of the completed form to the requester. The original form should be filed i
24、n the SAE Staff completed request file. The copy of the request form which was filed in the request file should be removed at this time. SAE J2191 Reaffirmed DEC2002 -4- FIGURE 2SAE STANDARDIZED CIRCUIT GSID, SCID REQUEST FORM SAE J2191 Reaffirmed DEC2002 -5- 6.General CategoriesSee Table 1. TABLE 1
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- SAE J2191-2002 Recommended Practice for Identification of Standardized Truck and Tractor Electrical Circuits J2191
链接地址:https://www.31doc.com/p-3678295.html