SAE J1766标准内容.pdf

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400 Commonwealth Drive, Warrendale, PA 15096-0001 SURFACE VEHICLE RECOMMENDED PRACTICE Submitted for recognition as an American National Standard J1766 REV. JUN1998 Issued Revised 1996-02 1998-06 Superseding J1766 FEB96 (R) RECOMMENDED PRACTICE FOR ELECTRIC AND HYBRID ELECTRIC VEHICLE BATTERY SYSTEMS CRASH INTEGRITY TESTING Foreword—This SAE Recommended Practice describes methods for evaluating Electric Vehicle (EV) performance when subjected to various FMVSS crash test procedures. It addresses battery retention, electrical isolation and electrolyte spillage. It is intended to provide Electric Vehicle designers with recommended tests and performance criteria relating to Electric and Hybrid Electric Vehicles. This document is the first of this type for Electric Vehicles and is based on limited test data. Accordingly, test personnel should exercise extreme caution when conducting the procedures described in this document. Each testing organization is encouraged, upon experience, to send comments and suggested revisions to these procedures. Please send comments or suggestions to: Society of Automotive Engineers, 400 Commonwealth Drive, Warrendale, PA 15096-0001, attention: Electric Vehicle Safety Committee. TABLE OF CONTENTS 1. 1.1 1.2 1.3 1.4 2. 2.1 2.1.1 2.1.2 2.2 2.2.1 3. 4. 4.1 4.1.1 4.1.2 4.1.3 4.2 4.3 Scope ....................................................................................................................................................... 2 Purpose .................................................................................................................................................... 2 Field of Application ................................................................................................................................... 2 Product Classification ............................................................................................................................... 2 Form ......................................................................................................................................................... 2 References ............................................................................................................................................... 2 Applicable Publications............................................................................................................................. 2 SAE Publications ...................................................................................................................................... 2 Federal Motor Vehicle Safety Standards .................................................................................................. 2 Related Publications................................................................................................................................. 3 SAE Publications ...................................................................................................................................... 3 Definitions................................................................................................................................................. 3 Technical Requirements........................................................................................................................... 3 Electric and Hybrid Electric Vehicle Testing Battery Preparation ............................................................. 3 Battery Coolant......................................................................................................................................... 3 Battery State-of-Charge ........................................................................................................................... 3 Environmental Preparation ....................................................................................................................... 3 Static Rollover Procedure......................................................................................................................... 3 Crash Test Procedures............................................................................................................................. 3 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 therefrom, 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. QUESTIONS REGARDING THIS DOCUMENT: (724) 772-8512 FAX: (724) 776-0243 TO PLACE A DOCUMENT ORDER; (724) 776-4970 FAX: (724) 776-0790 SAE WEB ADDRESS http://www.sae.org Copyright 1998 Society of Automotive Engineers, Inc. All rights reserved. Printed in U.S.A.

SAE J1766 Revised JUN1998 4.4 4.4.1 4.4.1.1 4.4.1.2 4.4.1.3 4.4.2 4.4.3 Performance Criteria................................................................................................................................. 4 Electrolyte Spillage ................................................................................................................................... 4 Spillage Identification................................................................................................................................ 4 Electrolyte Spillage Inside the Occupant Compartment ........................................................................... 4 Electrolyte Spillage Outside the Occupant Compartment......................................................................... 4 Battery Retention ...................................................................................................................................... 4 Electrical Isolation..................................................................................................................................... 4 Appendix A Measurement Of Electrical Isolation ......................................................................................................... 5 1. Scope—Electric and Hybrid Electric Vehicles contain many types of battery systems. Adequate barriers between occupants and battery systems are necessary to provide protection from potentially harmful factors and materials within the battery system that can cause injury to occupants of the vehicle during a crash. This SAE Recommended Practice is applicable to all Electric Vehicle and Hybrid Electric Vehicle battery designs, including those described in SAE J1797. The potentially harmful factors and materials addressed by this document include electrical isolation integrity, electrolyte spillage, and retention of the battery system. 1.1 Purpose—The purpose of this document is to define test methods and performance criteria which evaluate battery system spillage, battery retention, and electrical system isolation in Electric and Hybrid Electric Vehicles during specified crash tests. 1.2 Field of Application—The vehicles covered in this document are Electric and Hybrid Electric Vehicles with a gross vehicle weight of 4536 kg (10 000 lb) or less. 1.3 Product Classification—Not available. 1.4 Form—Not available. 2. References 2.1 Applicable Publications—The following publications form a part of this specification to the extent specified herein. The latest issue of Federal Motor Vehicle Safety Standards or SAE publications shall apply. Applicable FMVSS standards and regulations shall supersede any SAE Recommended Practices referenced in this document. 2.1.1 SAE PUBLICATIONS—Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001. SAE J1715—Electric Vehicle Terminology SAE J2344—Guidelines for Electric Vehicle Safety 2.1.2 FEDERAL MOTOR VEHICLE SAFETY STANDARDS—Code of Federal Regulations, Title 49, Part 400-499 which contains the current FMVSS regulations issued under Chapter V - National Highway Traffic Safety Administration—Available from Superintendent of Documents, Government Printing Office, Washington, DC 20408, Phone: 202-366-3238. FMVSS Test Procedures Available from Administration/Technical Reference Division, NHTSA, NAD-52. Phone: 202-366-4946 FMVSS 571.208 Standard No. 208—Occupant Crash Protection FMVSS 571.214 Standard No. 214—Side Impact Protection FMVSS 571.301 Standard No. 301—Fuel System Integrity -2-

SAE J1766 Revised JUN1998 2.2 Related Publications—The following publications are provided for information purposes only and are not a required part of this document. 2.2.1 SAE PUBLICATIONS—Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001. SAE TSB 001—SAE Technical Standards Board Rules and Regulations SAE TSB 002—SAE Preparation of SAE Technical Reports SAE TSB 003—Rules for the SAE Use of SI (Metric) Units SAE J1115—Guidelines for Developing and Revising SAE Nomenclature and Definitions SAE J1772— Electric Vehicle Conductive Coupling SAE J1773— Electric Vehicle Inductive Coupling SAE J1797— Packaging of Electric Vehicle Battery Modules SAE J1798—Electric Vehicle Battery Performance SAE Report—Format Guidelines for Electronic Capture of SAE Documents SAE Committee Guidelines Manual 3. Definitions—The definitions provided in SAE J1715, shall apply to this document. The following definitions, which are not provided in SAE J1715, also apply: 3.1 Charging System—Means the device(s) and associated equipment necessary to properly recharge the traction battery in an Electric or Hybrid Electric Vehicle. 3.2 Battery System Components—Means the components comprising a traction battery system in an Electric or Hybrid Electric Vehicle. These include the battery modules, interconnects, venting systems, battery restraint devices, and battery box or container that holds the individual battery modules. 4. Technical Requirements NOTE—During, before, and after functional Electric Vehicle crash testing, appropriate safety precautions must be taken to prevent possible injury to test personnel. Proper battery safety hazard training should be given to test personnel before testing. 4.1 Electric and Hybrid Electric Vehicle Testing Battery Preparation—The battery system in the test vehicle shall be in an operational configuration. 4.1.1 4.1.2 4.1.3 BATTERY COOLANT—For purposes of 4.4.1, battery coolant is not considered electrolyte. When necessary, a colorant, chemical analysis, or some other means may be used to distinguish between electrolyte and coolant spillage. BATTERY STATE-OF-CHARGE—The battery system shall be fully charged prior to the crash test using the vehicle manufacturer’s recommended charging procedures. ENVIRONMENTAL PREPARATION—The environmental conditions shall be those specified in the relevant FMVSS test procedures. 4.2 Static Rollover Procedure—After each of the crash tests described in 4.3, the vehicle is statically rolled on a fixture according to the rollover procedure specified in FMVSS 571.301. 4.3 Crash Test Procedures—Electric and Hybrid Electric Vehicles shall meet the performance criteria established in 4.4 tested to the following crash procedures: a. FMVSS 208 frontal impact (including the full frontal and 30 degree front angle impacts) b. FMVSS 214 side impact c. FMVSS 301 rear impact -3-

SAE J1766 Revised JUN1998 4.4 Performance Criteria 4.4.1 ELECTROLYTE SPILLAGE 4.4.1.1 Spillage Identification—Before and after each of the test procedures in 4.2 and 4.3, the vehicle shall be inspected for electrolyte spillage. Verification of electrolyte may be determined by visual inspection, litmus paper testing, and/or chemical analysis of the fluid. 4.4.1.2 Electrolyte Spillage Inside the Occupant Compartment—No spillage of electrolyte is permitted into the occupant compartment when tested to the procedures specified in 4.2 and 4.3 of this document. 4.4.1.3 4.4.2 4.4.3 Electrolyte Spillage Outside the Occupant Compartment—When tested to any one of the crash tests specified in 4.3 and the subsequent vehicle rollover procedure specified in 4.2, the total electrolyte spillage from an Electric Vehicle or Hybrid Electric Vehicle shall not exceed 5.0 L. Total electrolyte spillage is determined from measurements taken from the time vehicle motion ceases after the crash test, during a 30-min period after vehicle motion ceases, and throughout the post-crash rollover test. This 5 L limit is intended to constrain electrolyte spillage only. BATTERY RETENTION—Battery modules must stay restrained to the vehicle throughout the test procedures described in 4.2 and 4.3. Intrusion of battery system components into the occupant compartment is not permitted before, during, or after any of the crash and rollover tests. ELECTRICAL ISOLATION—Electrical isolation between the traction battery system and vehicle conducting structure must be maintained at a minimum of 500 W /V (at the nominal traction voltage specified by the vehicle manufacturer) before and after each of the crash tests described in 4.3 and after the rollover test described in 4.2. For example, an Electric Vehicle having a nominal traction voltage of 300 V would be required to have a minimum of 150 000 W resistance between the battery system and the vehicle conducting structure. It is understood that during a crash, electrical isolation may be lost momentarily provided that it is subsequently restored. Appendix A describes a test procedure for determining electrical isolation. Vehicles, which by design have the traction batteries referenced to conducting portions of the vehicle structure, are excluded from the requirements of this section if the nominal traction voltage from both positive and negative terminals to conducting structure is less than hazardous voltage (as defined in SAE J2344). PREPARED BY THE SAE ELECTRIC VEHICLE SAFETY COMMITTEE OF THE SAE ELECTRIC VEHICLE STANDARDS FORUM COMMITTEE -4-

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