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原文传递 Analysis of Remote Sensing Data to Determine Deterioration Rates for OBDII (On Board Diagnostic, Version 2.0) Equipped Vehicles.

题名：	Analysis of Remote Sensing Data to Determine Deterioration Rates for OBDII (On Board Diagnostic, Version 2.0) Equipped Vehicles.
关键词：	REMOTE SENSING
摘要：	The objective of this project was to compare emissions deterioration rates for OBDII equipped vehicles in areas with inspection and maintenance programs and areas without inspection and maintenance programs using remote sensing measurements made in the same locations two years apart. This study found that single site measurements two years apart from E-23 programs did not allow deterioration rates to be calculated for OBDII equipped vehicles with sufficient precision to accomplish the program objective. By using the very large remote sensing database from the St. Louis, MO inspection and maintenance program, it was possible to determine deterioration rates on OBDII equipped vehicles from measurements made two years apart. From information over four and five years, St. Louis data also showed emission deterioration rates to be lower for newer OBDII equipped vehicles. Also, when looking at average emissions for vehicles of the same age, newer model year OBDII equipped vehicles have lower emissions of NO and CO.
报告类型：	科技报告