Quality Assurance of Exhaust Emissions Test Data Measured Using Portable Emissions Measurement System West Virginia University

Format:

Conference/Event

Author/Creator:

Krishnamurthy Madwachar, Mohan, author.

Conference Name:

Powertrain & Fluid Systems Conference & Exhibition (2005-10-24 : San Antonio, Texas, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2005

Summary:

Beginning 2007, heavy-duty engine certification would require that in-use emissions from vehicles be measured under real-world' operating conditions using on-board measurement devices. An on-board portable emissions measurement system called Mobile Emissions Measurement System (MEMS) was developed at West Virginia University (WVU) to record in-use, continuous and brake-specific emissions from heavy-duty diesel-powered vehicles. The objective of this paper is to present a preliminary development of a test data quality assurance methodology for emissions measured using the any portable emissions measurement system (PEMS). The first stage of the methodology requires ensuring the proper operation of the different sensors and transducers during data collection. The second stage is data synchronization and pre-processing. The next stage is systematic checking of possible errors from transducers and sensors. It should be noted that the methodology discussed focuses on one set of sampling conditioning system and certain measurement technologies, the general discussion on the need for quality assurance and the appropriate methodology to achieve quality assurance remains unchanged

Notes:

Vendor supplied data

Publisher Number:

2005-01-3799

Access Restriction:

Restricted for use by site license