1.1本试验方法涵盖了一种发动机试验程序，用于测量汽车发动机油对车辆总重为3856 kg或以下的乘用车和轻型卡车燃油经济性的影响。试验在测功机试验台上进行，使用指定的火花点火式发动机，排量为4.6升。它适用于这些应用中使用的多粘度级机油。 1.2本试验方法还规定了称为VIBSJ的缩短长度试验的运行。VIBSJ的程序与序列VIB相同，但中特别列出的项目除外 附录A13 . 中列出的程序修改 附录A13 请参阅序列振动测试方法的相应章节。 1.3以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.3.1 例外情况- 如果没有直接的国际单位制等效物，例如螺纹、国家管道螺纹/直径、管道尺寸或单一来源供应设备规范。制动比油耗的测量单位为千克/千瓦时。在图中。A2.4、A2.5和A2.8英寸-磅单位应视为标准单位。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 1.5本试验方法安排如下: 主题 部分 介绍 范围 1. 参考文件 2. 术语 3. 试验方法总结 4. 意义和用途 5. 仪器 6. 全体的 6.1 测试发动机配置 6.2 实验室环境条件 6.3 发动机转速和扭矩控制 6.4 测功机 6.4.1 测功机扭矩 6.4.2 发动机冷却系统 6.5 外部油系统 6.6 燃油系统 6.7 燃油流量测量 6.7.2 燃油温度和压力控制 燃油流量计 6.7.3 燃油温度和压力控制 发动机燃油分供管 6.7.4 燃油供应泵 6.7.5 燃油过滤 6.7.6 发动机进气供应 6.8 进气湿度 6.8.1 进气过滤 6.8.2 进气压力释放 6.8.3 温度测量 6.9 热电偶位置 6.9.5 AFR测定 6.10 排气和排气背压系统 6.11 排气歧管 6.11.1 实验室排气系统 6.11.2 排气背压 6.11.3 压力测量和压力传感器 位置 6.12 发动机机油 6.12.2 燃料流量计 6.12.3 至发动机燃油分供管的燃油 6.12.4 排气背压 6.12.5 进气 6.12.6 进气歧管真空/绝对压力 6.12.7 冷却液流量压差 6.12.8 曲轴箱压力 6.12.9 发动机硬件和相关设备 6.13 测试发动机配置 6.13.1 ECM/EEC（发动机控制）模块 6.13.2 恒温器/孔板 6.13.3 进气歧管 6.13.4 飞轮 6.13.5 线束 6.13.6 EGR挡板 6.13.7 油底壳 6.13.8 油泵滤网和吸油管 6.13.9 怠速控制电磁阀（ISC）闭锁 盘子 6.13.10 发动机水泵 6.13.11 节温器壳体 6.13.12 机油滤清器适配器 6.13.13 燃油分供管 6.13.14 与发动机相关的其他设备 活动 6.14 正时灯 6.14.1 试剂和材料 7. 发动机机油 7.1 试验燃料 7.2 发动机冷却液 7.3 清洁材料 7.4 仪器的准备 8. 试验台准备 8.2 发动机准备 9 清洁发动机零件 9.2 发动机装配程序 9.3 总装配说明 9.3.1 螺栓扭矩规格 9.3.2 密封化合物 9.3.3 谐波平衡器 9.3.5 油底壳 9.3.6 进气歧管 9.3.7 凸轮轴盖 9.3.8 恒温器 9.3.9 节温器壳体 9.3.10 冷却液进口 9.3.11 机油滤清器适配器 9.3.12 油尺管 9.3.13 水泵 9.3.14 传感器、开关、阀门和定位器 9.3.15 点火系统 9.3.16 燃油喷射系统 9.3.17 进气系统 9.3.18 发动机管理系统（火花和燃油 控制） 9.3.19 附件驱动装置 9 3.20 排气歧管 9.3.21 发动机飞轮和护罩 9.3.22 组装发动机的起吊 9.3.23 引擎支架 9.3.24 标定 10 支架/发动机校准 10.1 程序 10.1.1 参考结果报告 10.1.2 参考/校准油的分析 10.1.3 仪器校准 10.2 发动机扭矩测量系统 10.2.1 燃油流量测量系统 10.2.2 冷却剂流量测量系统 10.2.3 热电偶和温度测量 系统 10.2.4 湿度测量系统 10.2.5 其他仪表 10.2.6 试验程序 11 新发动机初始启动准备 11.1 外部油系统 11.1.1 冲洗效果演示 11.1.2 加油准备 11.1.3 冷却液冲洗充油 11.1.4 冷却液冲洗的发动机冷却液加注 11.1.5 初始发动机启动 11.2 冷却液冲洗 11.3 新发动机磨合 11.4 磨合加油 11.4.2 磨合操作条件 11.4.3 常规测试操作 11.5 启动和关闭程序 11.5.8 飞行冲洗换油程序 11.5.9 测试操作阶段 11.5.10 稳定到阶段条件 11.5.11 稳定的BSFC测量周期 11.5.12 数据记录 11.5.13 测试前BC油的BC油冲洗程序 油 11.5.14 BSFC在测试油之前测量BC油 11.5.15 试验油冲洗程序 11.5.16 试验油老化 11.5.17 老化（一期）试验油的BSFC测量 11.5.18 老化阶段II 11.5.19 老化（二期）试验油的BSFC测量 11.5.21 测试油后BC油的BC油冲洗程序 11.5.22 测试油后BC油的BSFC测量 11.5.23 通用测试数据记录表 11.5.24 诊断审查程序 11.5. 25 测试结果的确定 12 FEI1和FEI2计算 12.1 最终测试报告 13 有效性声明 13.1 报告格式 13.2 精度和偏差 14 精确 14.1 有效性 14.2 试验台校准状态 14.2.1 偏差操作的有效性解释 条件 14.2.2 偏见 14.3 关键词 15 附件 ASTM TMC的作用 附件A1 仪器的详细规格和图纸 附件A2 油加热器Cerrobase加注程序 附件A3 发动机零件号清单 附件A4 飞行刷新检查表 附件A5 安全注意事项 附录A6 报告格式 附件A7 平均值和标准值的统计方程 偏差 附录A8 油底壳满液位测定消耗 测量校准程序 附录A9 喷油器评估 附件A10 测试前维护检查表 附录A11 窜气通风系统要求 附录A12 VIBSJ缩短长度试验要求 附录A13 附录 测试材料的采购 附录X1 ====意义和用途====== 5.1 试验方法- 使用本试验方法获得的数据提供了可重复实验室条件下汽车发动机油节油能力的比较指数。 为本试验建立了基准校准油（以下简称BC油），以提供一个标准，与所有其他油进行比较。BC油是一种SAE 5W-30级全配方润滑剂。试验方法D6837（序列VIB）燃油经济性改善百分比（FEI）与在当前EPA试验循环下代表当前生产的车辆获得的燃油经济性结果直接相关。在没有充分复制的情况下，测试程序的设计不是为了精确估计两种测试油之间的差异。 相反，它是为了比较测试油和BC油。最新版本的规范中讨论了用于根据规范要求评估发动机机油性能的配套测试方法 D4485 . 5.2 使用- 顺序振动试验方法有助于发动机机油燃油经济性规范的验收。它用于发动机润滑油的规格和分类，例如: 5.2.1规范 D4485 . 5.2.2 API出版物1509 . 5.2.3 SAE分类J304 . 5.2.4 SAE分类J1423 .

1.1 This test method covers an engine test procedure for the measurement of the effects of automotive engine oils on the fuel economy of passenger cars and light-duty trucks with gross vehicle weight of 3856 kg or less. The tests are conducted on a dynamometer test stand using a specified spark-ignition engine with a displacement of 4.6-L. It applies to multiviscosity grade oils used in these applications. 1.2 This test method also provides for the running of an abbreviated length test that is referred to as the VIBSJ. The procedure for VIBSJ is identical to the Sequence VIB with the exception of the items specifically listed in Annex A13 . The procedure modifications listed in Annex A13 refer to the corresponding section of the Sequence VIB test method. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3.1 Exceptions— Where there is no direct SI equivalent such as screw threads, National Pipe Threads/diameters, tubing size, or single source supply equipment specifications. Brake Specific Fuel Consumption is measured in kilograms per kilowatthour. In Figs. A2.4, A2.5, and A2.8, inch-pound units are to be regarded as standard. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 1.5 This test method is arranged as follows: Subject Section Introduction Scope 1 Referenced Documents 2 Terminology 3 Summary of Test Method 4 Significance and Use 5 Apparatus 6 General 6.1 Test Engine Configuration 6.2 Laboratory Ambient Conditions 6.3 Engine Speed and Torque Control 6.4 Dynamometer 6.4.1 Dynamometer Torque 6.4.2 Engine Cooling System 6.5 External Oil System 6.6 Fuel System 6.7 Fuel Flow Measurement 6.7.2 Fuel Temperature and Pressure Control to the Fuel Flowmeter 6.7.3 Fuel Temperature and Pressure Control to Engine Fuel Rail 6.7.4 Fuel Supply Pumps 6.7.5 Fuel Filtering 6.7.6 Engine Intake Air Supply 6.8 Intake Air Humidity 6.8.1 Intake Air Filtration 6.8.2 Intake Air Pressure Relief 6.8.3 Temperature Measurement 6.9 Thermocouple Location 6.9.5 AFR Determination 6.10 Exhaust and Exhaust Back Pressure Systems 6.11 Exhaust Manifolds 6.11.1 Laboratory Exhaust System 6.11.2 Exhaust Back Pressure 6.11.3 Pressure Measurement and Pressure Sensor Locations 6.12 Engine Oil 6.12.2 Fuel to Fuel Flowmeter 6.12.3 Fuel to Engine Fuel Rail 6.12.4 Exhaust Back Pressure 6.12.5 Intake Air 6.12.6 Intake Manifold Vacuum/Absolute Pressure 6.12.7 Coolant Flow Differential Pressure 6.12.8 Crankcase Pressure 6.12.9 Engine Hardware and Related Apparatus 6.13 Test Engine Configuration 6.13.1 ECM/EEC (Engine Control) Module 6.13.2 Thermostat/Orifice Plate 6.13.3 Intake Manifold 6.13.4 Flywheel 6.13.5 Wiring Harnesses 6.13.6 EGR Block-Off Plate 6.13.7 Oil Pan 6.13.8 Oil Pump Screen and Pickup Tube 6.13.9 Idle Speed Control Solenoid (ISC) Block-Off Plate 6.13.10 Engine Water Pump 6.13.11 Thermostat Housing 6.13.12 Oil Filter Adapter 6.13.13 Fuel Rail 6.13.14 Miscellaneous Apparatus Related to Engine Operation 6.14 Timing Light 6.14.1 Reagents and Materials 7 Engine Oil 7.1 Test Fuel 7.2 Engine Coolant 7.3 Cleaning Materials 7.4 Preparation of Apparatus 8 Test Stand Preparation 8.2 Engine Preparation 9 Cleaning of Engine Parts 9.2 Engine Assembly Procedure 9.3 General Assembly Instructions 9.3.1 Bolt Torque Specifications 9.3.2 Sealing Compounds 9.3.3 Harmonic Balancer 9.3.5 Oil Pan 9.3.6 Intake Manifold 9.3.7 Camshaft Covers 9.3.8 Thermostat 9.3.9 Thermostat Housing 9.3.10 Coolant Inlet 9.3.11 Oil Filter Adapter 9.3.12 Dipstick Tube 9.3.13 Water Pump 9.3.14 Sensors, Switches, Valves, and Positioners 9.3.15 Ignition System 9.3.16 Fuel Injection System 9.3.17 Intake Air System 9.3.18 Engine Management System (Spark and Fuel Control) 9.3.19 Accessory Drive Units 9.3.20 Exhaust Manifolds 9.3.21 Engine Flywheel and Guards 9.3.22 Lifting of Assembled Engines 9.3.23 Engine Mounts 9.3.24 Calibration 10 Stand/Engine Calibration 10.1 Procedure 10.1.1 Reporting of Reference Results 10.1.2 Analysis of Reference/Calibration Oils 10.1.3 Instrument Calibration 10.2 Engine Torque Measurement System 10.2.1 Fuel Flow Measurement System 10.2.2 Coolant Flow Measurement System 10.2.3 Thermocouple and Temperature Measurement System 10.2.4 Humidity Measurement System 10.2.5 Other Instrumentation 10.2.6 Test Procedure 11 Preparation for Initial Start-up of New Engine 11.1 External Oil System 11.1.1 Flush Effectiveness Demonstration 11.1.2 Preparation for Oil Charge 11.1.3 Oil Charge for Coolant Flush 11.1.4 Engine Coolant Charge for Coolant Flush 11.1.5 Initial Engine Start-up 11.2 Coolant Flush 11.3 New Engine Break-In 11.4 Oil Charge for Break-In 11.4.2 Break-In Operating Conditions 11.4.3 Routine Test Operation 11.5 Start-Up and Shutdown Procedures 11.5.8 Flying Flush Oil Exchange Procedures 11.5.9 Test Operating Stages 11.5.10 Stabilization to Stage Conditions 11.5.11 Stabilized BSFC Measurement Cycle 11.5.12 Data Logging 11.5.13 BC Oil Flush Procedure for BC Oil Before Test Oil 11.5.14 BSFC Measurement of BC Oil Before Test Oil 11.5.15 Test Oil Flush Procedure 11.5.16 Test Oil Aging 11.5.17 BSFC Measurement of Aged (Phase I) Test Oil 11.5.18 Aging Phase II 11.5.19 BSFC Measurement of Aged (Phase II) Test Oil 11.5.21 BC Oil Flush Procedure for BC Oil After Test Oil 11.5.22 BSFC Measurement for BC Oil After Test Oil 11.5.23 General Test Data Logging Forms 11.5.24 Diagnostic Review Procedures 11.5.25 Determination of Test Results 12 FEI1 and FEI2 Calculations 12.1 Final Test Report 13 Validity Statement 13.1 Report Format 13.2 Precision and Bias 14 Precision 14.1 Validity 14.2 Test Stand Calibration Status 14.2.1 Validity Interpretation of Deviant Operational Conditions 14.2.2 Bias 14.3 Keywords 15 Annexes Role of ASTM TMC Annex A1 Detailed Specifications and Drawings of Apparatus Annex A2 Oil Heater Cerrobase Refill Procedure Annex A3 Engine Part Number Listing Annex A4 Flying Flush Checklists Annex A5 Safety Precautions Annex A6 Report Format Annex A7 Statistical Equations for Mean and Standard Deviations Annex A8 Oil Sump Full Level Determination Consumption Measurement Calibration Procedure Annex A9 Fuel Injector Evaluation Annex A10 Pre-test Maintenance Checklist Annex A11 Blow-by Ventilation System Requirements Annex A12 VIBSJ Abbreviated Length Test Requirements Annex A13 Appendix Procurement of Test Materials Appendix X1 ====== Significance And Use ====== 5.1 Test Method— The data obtained from the use of this test method provide a comparative index of the fuel-saving capabilities of automotive engine oils under repeatable laboratory conditions. A baseline calibration oil (hereafter referred to as BC oil) has been established for this test to provide a standard against which all other oils can be compared. The BC oil is an SAE 5W-30 grade fully formulated lubricant. There is a direct correlation of Test Method D6837 (Sequence VIB) Fuel Economy Improvement (FEI) by percent with the fuel economy results obtained from vehicles representative of current production running under the current EPA testing cycles. The test procedure was not designed to give a precise estimate of the difference between two test oils without adequate replication. Rather, it was developed to compare a test oil to BC oil. Companion test methods used to evaluate engine oil performance for specification requirements are discussed in the latest revision of Specification D4485 . 5.2 Use— The Sequence VIB test method is useful for engine oil fuel economy specification acceptance. It is used in specifications and classifications of engine lubricating oils, such as the following: 5.2.1 Specification D4485 . 5.2.2 API Publication 1509 . 5.2.3 SAE Classification J304 . 5.2.4 SAE Classification J1423 .