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Medium Heavy-Duty Truck Test Cycle Evaluation. Final rept.
| 题名： | Medium Heavy-Duty Truck Test Cycle Evaluation. Final rept. |
| 作者： | Clark-N.N.; Gautam-M.; Wayne-W.S.; Lyons-D.W. |
| 关键词： | *Air-pollution; *Test-cycles; *Trucks-.;Motor-vehicles; Comparisons-; Transmissions-; Procurement-; Test-apparatus; Emissions-data; Test-runs; Schedules-. |
| 摘要： | A Medium Heavy-Duty Truck (MHDT) schedule, developed by the California Air Resources Board (ARB), was examined experimentally to determine its suitability as a future research tool. The MHDT was developed to aid in emissions characterization of trucks with 14,001 to 33,000 lb. gross vehicle weight, exercised on a chassis dynamometer. This weight range encompasses a wide variety of vehicles, with varying power to weight ratios and with synchronized manual, unsynchronized manual, and automatic transmissions. A major objective of this program was to examine repeatability of emissions data from MHDT driven through this schedule. The MHDT schedule consisted of three modes; namely, a Lower Speed Transient, a Higher Speed Transient, and a Cruise mode. The maximum speeds of these modes were 28.9, 58.2 and 66.0 mph, respectively. |
| 报告类型： | 科技报告 |
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