Category selection for transient heavy-duty and engine cycles. Technical support report for regulatory action

Technical Report · Mon May 01 04:00:00 EDT 1978

OSTI ID:5776188

France, C J

The Emission Control Technology Division (ECTD) of EPA has generated heavy-duty transient engine and chassis cycles representative of the truck operational data collected during the CAPE-21 survey. This report summarizes the considerations and decision process used in arriving at the final vehicle categories for which heavy-duty transient cycles were developed. Statistical comparisons between various operational parameters were primarily relied upon in selecting the valid category combinations. It was possible to reduce the original number of vehicle categories from 28 to 9 for engine cycles and from 28 to 5 for chassis cycles.

• Research Organization: Environmental Protection Agency, Ann Arbor, MI (USA)
• OSTI ID: 5776188
• Report Number(s): PB-294088
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330101* -- Internal Combustion Engines-- Spark-Ignition
330102 -- Internal Combustion Engines-- Diesel
AIR POLLUTION
BUSES
DIESEL ENGINES
ENERGY CONSUMPTION
ENGINES
FUEL CONSUMPTION
FUELS
GASOLINE
INTERNAL COMBUSTION ENGINES
OPERATION
PETROLEUM PRODUCTS
POLLUTION
REGULATIONS
TRANSPORTATION SYSTEMS
TRUCKS
VEHICLES