Record Display for the EPA National Library Catalog


Main Title The effect of acceleration rate on automatic transmission shift-speeds for two 1979 Novas /
Author Jones, Randy.
CORP Author Environmental Protection Agency, Ann Arbor, MI. Standards Development and Support Branch.
Publisher U.S. Environmental Protection Agency, Office of Air, Noise and Radiation, Office of Mobile Source Air Pollution Control, Emission Control Technology Division, Standards Development and Support Branch,
Year Published 1980
Report Number EPA-AA-SDSB-80-3
Stock Number PB80-196082
OCLC Number 724094376
Subjects Automatic transmissions ; Acceleration ; Automobiles--Transmission devices, Automatic ; Holden Nova automobile
Additional Subjects Automobiles ; Automatic transmissions ; Acceleration(Physics) ; Fuel consumption ; Velocity ; Performance evaluation ; Nova vehicles ; Motor vehicles(1979 models) ; General Motors vehicles ; Transmission shifting
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
ELCD  EPA AA-SDSB-80-3 NVFEL Library/Ann Arbor, MI 05/23/2011
NTIS  PB80-196082 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 13, [3] p. : charts ; 28 cm.
Variations in acceleration rates will result in variations in vehicle fuel economy. If typical vehicle acceleration rates are distributed in the same manner as the accelerations are distributed on the EPA test cycles, or if the vehicle operational characteristics do not significantly change with acceleration rate, then results from the EPA cycles should be representative of average vehicle use. However, if vehicle operational characteristics change with changing acceleration rates, and if vehicle accelerations in consumer use are not distributed in the same manner as the accelerations of the EPA test cycle, then significant differences between EPA estimated fuel economy and actual vehicle fuel consumption may result. One vehicle characteristic which often changes with acceleration rate is the transmission shift speed for vehicles with automatic transmissions. To determine the effects of acceleration rates on transmission shift speeds, EPA recently conducted a short test sequence on two vehicles with automatic transmissions. These tests determined the relation between vehicle acceleration rate and transmission shift speed for acceleration rates from 1 to 6 mph/sec.
Includes bibliographical references (p. 10). Technical report. Cover title. "January 1980." "EPA-AA-SDSB-80-3."