Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Analysis of hot/cold cycle requirements for heavy-duty vehicles. Technical report

Technical Report ·
OSTI ID:5776189
EPA has recently been involved in the development of transient engine and chassis cycles from the CAPE-21 survey data. The CAPE-21 survey data was gathered from eighty-eight in-use trucks; forty-four in New York City and forty-four in Los Angeles. Vehicle speed, engine rpm, engine power, engine temperature, and various traffic and road describers were recorded on tape, at approximately one second intervals. Prior to the actual generation of the cycles, the need for a unique cold start cycle (engine and/or chassis) was investigated. This report summarizes this investigation.
Research Organization:
Environmental Protection Agency, Ann Arbor, MI (USA)
OSTI ID:
5776189
Report Number(s):
PB-293842
Country of Publication:
United States
Language:
English