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原文传递 Light Duty PEMS Validations/Chassis Dynamometer Correlation.

题名：	Light Duty PEMS Validations/Chassis Dynamometer Correlation.
作者：	Stanard, A.
关键词：	Portable emissions measurement systems (PEMS), On road testing, Chassis dynamometer, Light-duty vehicles, Emissions testing
摘要：	This report documents a project conducted by ERG on behalf of the Coordinating Research Council (CRC), with the assistance of Southwest Research Institute (SwRI). The project was performed to conduct an evaluation of the state of light-duty Portable Emission Measurement System (PEMS) testing by evaluating the measurements made by three different commercially-available PEMS of the emissions of a single test vehicle operating on a chassis dynamometer, on a given on-road route, and on a closed test track. Interest in the development and use of PEMS to evaluate the pollutant emissions from light duty vehicles has increased in recent years. PEMS allows for the types of exhaust pollutant emission measurements that are typically made in a laboratory, such as the measurements used for new-vehicle certification, to be made on a vehicle during actual on-road use. These measurements can include measurement or estimation of exhaust flow rate, and the measurement of mass emissions of hydrocarbons (HC), oxides of nitrogen (NOx), carbon monoxide (CO), carbon dioxide (CO2), and particulate matter mass (PM), among others. European legislation has mandated the use of PEMS for new light-duty vehicle certification, requiring measurements of NOx and particulate number. In the US, PEMS is not a part of light duty certification; however PEMS devices from multiple manufacturers are in use by various entities in support of research or vehicle screening.
报告类型：	科技报告