This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Evolution of Federal Light-Duty Mass Emission Regulations
Annotation ability available
Sector:
Language:
English
Abstract
This paper presents the development of the concept of emission testing on a mass basis and the establishment of emission baselines and standards. Data from tests run on several fleets to establish equivalency factors between average exhaust emissions when testing according to the 1970 (7-mode), 1972 (CVS-C), and the 1975 (CVS-CH) federal test procedures are listed. These data were used to establish the 1972, 1973-1974, 1975, and 1976 standard values.
Tests were run on 30 precontrol vehicles by both the 7-mode and CVS-C procedures to derive the factors used to translate the 7-mode procedure baseline data into equivalent CVS-C procedure baseline data for precontrol vehicles. These values were used to establish the 1972-1974 hydrocarbon (HC) and carbon monoxide (CO) light-duty vehicle standards.
Similar tests were run on 138 1970 vehicles to establish standards for the CVS-C procedure that were equivalent to the 1970 standards using the 7-mode procedure. Tests were also conducted on 90 vehicles to derive factors relating emissions from the CVS-C and CVS-CH test procedures. The results of these two programs were used to establish the 1975 HC and CO standards.
A baseline study was run on 245 1971 vehicles to determine the average oxides of nitrogen (NOx) emission level for 1971 vehicles when testing according to the CVS-C procedure. These results were used to establish the 1973-1974 and 1976 NOx standard values.
The 1975 NOx standard is equivalent to the 1973 standard. The NOx emission factor from the 90-vehicle fleet program to relate the CVS-C and CVS-CH procedures was used to derive the 1975 NOx standard.
The paper includes the test data and a discussion of the rationale behind the derivation of the standards.
Recommended Content
| Technical Paper | Exhaust Emissions 1966-1972 Model Year Light Duty Motor Vehicles |
| Technical Paper | A Treatise on Exhaust Emission Test Variability |
Authors
Topic
Citation
Huls, T., "Evolution of Federal Light-Duty Mass Emission Regulations," SAE Technical Paper 730554, 1973, https://doi.org/10.4271/730554.Also In
References
- Teague D. M. “Los Angeles Traffic Survey.” Paper 171 SAE National West Coast Meeting Seattle August 1957
- Way G. Fagley W. S. “Field Survey of Exhaust Gas Composition.” Paper 11A SAE Annual Meeting Detroit January 1958
- “California Standards for Ambient Air and Motor Vehicle Exhaust.” State of California Department of Public Health Dec. 4 1959
- “California Procedure for Testing Motor Vehicle Exhaust Emissions.” State of California Motor Vehicle Pollution Control Board May 19 1961
- “California Test Procedure and Criteria for Motor Vehicle Exhaust Emission Control.” State of California Motor Vehicle Pollution Control Board Jan. 23 1964
- Pattison J. N. Sweeney M. P. “A Study of Los Angeles Driving as it Relates to Peak Photochemical Smog Formation.” Paper 66-68 National Air Pollution Control Association Meeting June 1966
- Hass G. C. Sweeney M. P. Pattison J. N. “Laboratory Simulation of Driving Conditions in the Los Angeles Area.” “Vehicle Emissions, Part II,” Progress in Technology 12 New York Society of Automotive Engineers, Inc. 1968 317 324
- Federal Register 31 61 March 30 1966
- Federal Register 33 108 June 4 1968
- Broering L. C. Rose A. H. Jr. Werner W. J. “Automotive Mass Emission Analysis by a Variable Dilution Technique.” Air Pollution Control Association Annual Meeting, Cleveland June 1967
- Mick S. H. Clark J. B. Jr. “Weighing Automotive Exhaust Emissions.” Paper 690523 SAE Mid-Year Meeting Chicago May 1969
- Federal Register 35 28 Feb. 10 1970
- “The Automobile and Air Pollution: A Program for Progress.” Department of Commerce October 1967
- Federal Register 35 136 July 15 1970 11334 11335
- Federal Register 35 136 July 15 1970 11336 11359
- Federal Register 35 219 Nov. 10 1970
- Federal Register 36 39 Feb. 26 1971
- Federal Register 36 40 Feb. 27 1971
- Niki H. Warnick A. Lord R. R. “An Ozone-NO Chemiluminescence Method for NO Analysis in Piston and Turbine Engines.” SAE Transactions 80 1971 710072
- Federal Register 36 55 March 20 1971
- Federal Register 36 101 May 25 1971
- “The Clean Air Act.” P. L. 91-604 Dec. 31 1970
- Federal Register 35 24 Dec. 18 1970
- Federal Register 36 128 July 2 1971 12652 12656
- Federal Register 36 128 July 2 1971 12657 12663
- Kearin D. H. Lamoureaux R. L. “A Survey of Average Driving Patterns in the Los Angeles Urban Area.” TM-(L)-4119/000/01, System Development Corp. Feb. 28 1969
- Federal Register 37 10 Jan. 15 1972 672
- Federal Register 36 128 July 2 1971 12664
- Federal Register 36 166 Aug. 26 1971
- Federal Register 36 202 Oct. 19 1971
- Federal Register 36 228 Nov. 25 1971
- Federal Register 37 12 Jan. 19 1972
- Federal Register 37 193 Oct. 4 1972
- Federal Register 37 221 Nov. 15 1972
- Bennett C. A. Franklin N. L. “Statistical Analysis in Chemistry and the Chemical Industry.” New York John Wiley and Sons, Inc. 1954
- Kruse R. E. Huls T. A. “Development of the Federal Urban Driving Schedule.” Paper 730553 SAE Automotive Engineering Meeting Detroit May 1973