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Effect of preconditioning on in-use vehicle testing and failure analysis of evaporative emission control systems / by Richard R. Carlson, Olson Laboratories, Inc. ; contract no. 68-03-2412, task order no. 3 ; prepared for Environmental Protection Agency, Office of Air and Waste Management, Office of Mobile Source Air Pollution Control, Emission Control Technology Division.
Connect to full text Available online
View online- Format:
- Book
- Government document
- Author/Creator:
- Carlson, Richard R. (Olson Laboratories, Inc.)
- Language:
- English
- Subjects (All):
- Motor vehicles--United States--Pollution control devices--Testing.
- Motor vehicles.
- Automobiles--United States--Pollution control devices--Testing.
- Automobiles.
- Automobiles--Motors--Exhaust gas.
- Vehicle Emissions.
- Automobiles--Pollution control devices--Testing.
- Motor vehicles--Pollution control devices--Testing.
- United States.
- Medical Subjects:
- Vehicle Emissions.
- Genre:
- technical reports.
- Technical reports
- Technical reports.
- Physical Description:
- 1 online resource (vi, 61 pages) : illustrations, charts
- Place of Publication:
- Ann Arbor, Michigan : Environmental Protection Agency, Office of Air and Waste Management, Office of Mobile Source Air Pollution Control, Emission Control Technology Division, August 1977.
- Summary:
- Assessment of vehicle emissions in the in-use vehicle population depends upon a reliable and repeatable test procedure. This task order was initiated to investigate the effect of various preconditioning techniques on evaporative and exhaust emissions. This information will be useful in determining the appropriate test procedure for use in emission-factor test programs. Evaporative (SHED) and exhaust emission tests were performed on 20 late model catalyst-equipped vehicles to investigate the effect of three preconditioning procedures consisting of: 1) no preconditioning, 2) 1975 FTP driving schedule, and 3) 10-minute road route. A failure analysis was also performed on several vehicles which were found to either have high evaporative emissions or evaporative emissions which were higher than similarly equipped vehicles.
- Contents:
- Introduction and summary
- Conclusions
- Methodology ; Vehicle selection and procurement
- Vehicle test sequence
- Vehicle preconditioning
- Evaporative emission tests
- FTP exhaust emission tests
- Quality assurance procedures
- Failure analysis
- Data analysis
- Data recording and reduction
- Data analysis and interpretation
- Effect of preconditioning on evaporative and exhaust emissions ; Analysis of failed evaporative emission control systems
- Appendix.
- Notes:
- "EPA-460/3-77-013."
- "August 1977."
- Online resource, PDF version; title from PDF title page (EPA, viewed July 15, 2019).
- Other Format:
- Print version: Carlson, Richard R. Effect of preconditioning on in-use vehicle testing and failure analysis of evaporative emission control systems
- OCLC:
- 1108755009
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