重型柴油车突然加速发烟测试规程的推荐实施规程.1996年2月

[中文适用范围]： 本 SAE 推荐做法适用于使用快速加速测试程序进行的车辆排气烟雾测量。因为这是非移动车辆测试@，所以该测试可以沿路边@卡车仓库@车辆维修设施@或其他测试设施进行。该测试旨在用于由柴油发动机驱动的重型卡车和公共汽车。它设计为与利用烟雾测量的消光原理的烟雾计配合使用。此过程描述了如何执行快速加速测试。它还给出了烟度计和其他测试仪器的规格，并描述了测试过程中产生的排气烟雾的测量和量化算法。其中包括对影响快速加速测试结果的因素以及纠正这些条件的方法的讨论。除非另有说明，否则这些校正方法应被视为快速加速测试程序的组成部分。目的 本文件提供了评估重型柴油发动机驱动的在用车辆烟雾排放的程序。根据本程序@结合参考烟雾值@进行的测试旨在提供与影响排气烟雾的参数相关的发动机和燃油系统的维护和/或篡改状态的指示。该程序预计将适用于负责控制重型柴油动力车辆@烟雾排放的监管和执法机构以及重型车辆维护和修理设施。然而@书面程序并不复制联邦发动机认证烟雾循环@，而是旨在识别总排放者。使用此程序的监管机构必须制定通过/失败标准，因为 SAE 章程禁止指定此类标准。 [外文原描述]： This SAE Recommended Practice applies to vehicle exhaust smoke measurements made using the Snap-Acceleration test procedure. Because this is a non-moving vehicle test, this test can be conducted along the roadside, in a truck depot, a vehicle repair facility, or other test facilities. The test is intended to be used on heavy-duty trucks and buses powered by diesel engines. It is designed to be used in conjunction with smokemeters using the light extinction principle of smoke measurement.This procedure describes how the snap-acceleration test is to be performed. It also gives specifications for the smokemeter and other test instrumentation and describes the algorithm for the measurement and quantification of the exhaust smoke produced during the test. Included are discussions of factors which influence snap-acceleration test results and methods to correct for these conditions. Unless otherwise noted, these correction methodologies are to be considered an integral part of the snap-acceleration test procedure.Cross Reference: 40CFRPart86,ISOCD11614,J1243,J1349,J1349_201109,J1995_201401,J255