Transient cycle arrangement for heavy-duty engine and chassis emission testing. Technical report

Technical Report · Tue Aug 01 04:00:00 EDT 1978

OSTI ID:5748334

France, C J

Olson Laboratories, EPA's heavy-duty cycle development contractor, has generated various nominal 5-minute chassis and engine cycles from the CAPE-21 data base. The Emission Control Technology Division of EPA has in turn, selected the best cycle in each category for which cycles were generated (both chassis and engine cycles). The final step in ECTD's HD transient cycle development effort is the arrangement of these five minute cycles into one cycle which exhibits the proper trip characteristics as determined from the CAPE-21 survey data. The purpose of this report is to identify the cycle arrangement that has the proper trip characteristics and which also meets certain practical requirements. Chassis and engine cycle arrangements for both HD gasoline and diesel vehicles are developed. The equations necessary for exhaust emission calculations are also presented.

• Research Organization: Environmental Protection Agency, Ann Arbor, MI (USA)
• OSTI ID: 5748334
• Report Number(s): PB-293764
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330101 -- Internal Combustion Engines-- Spark-Ignition
330102 -- Internal Combustion Engines-- Diesel
330700* -- Advanced Propulsion Systems-- Emission Control
AIR POLLUTION
CALIFORNIA
DIESEL ENGINES
ENGINES
EXHAUST GASES
FUELS
GASEOUS WASTES
GASOLINE
INTERNAL COMBUSTION ENGINES
MID-ATLANTIC REGION
NEW YORK
NORTH AMERICA
PETROLEUM PRODUCTS
POLLUTION
SPARK IGNITION ENGINES
TRUCKS
USA
VEHICLES
WASTES
WESTERN REGION