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Statistical Characterization of School Bus Drive Cycles Collected Via Onboard Logging Systems.
| 题名： | Statistical Characterization of School Bus Drive Cycles Collected Via Onboard Logging Systems. |
| 作者： | Duran, A.; Walkowicz, K. |
| 关键词： | Buses; Data Acquisition; Drive Cycles; Electric Batteries; Electric Powered Vehicles; Energy Storage; Hybrid Electric Powered Vehicles; Logging Systems; School Bus; Statistical Data; Telemetry; Vehicl |
| 摘要： | In an effort to characterize the dynamics typical of school bus operation, National Renewable Energy Laboratory (NREL) researchers set out to gather in-use duty cycle data from school bus fleets operating across the country. Employing a combination of Isaac Instruments GPS/CAN data loggers in conjunction with existing onboard telemetric systems resulted in the capture of operating information for more than 200 individual vehicles in three geographically unique domestic locations. In total, over 1,500 individual operational route shifts from Washington, New York, and Colorado were collected. Upon completing the collection of in-use field data using either NREL-installed data acquisition devices or existing onboard telemetry systems, large-scale duty-cycle statistical analyses were performed to examine underlying vehicle dynamics trends within the data and to explore vehicle operation variations between fleet locations. Based on the results of these analyses, high, low, and average vehicle dynamics requirements were determined, resulting in the selection of representative standard chassis dynamometer test cycles for each condition. In this paper, the methodology and accompanying results of the large-scale duty-cycle statistical analysis are presented, including graphical and tabular representations of a number of relationships between key duty-cycle metrics observed within the larger data set. |
| 报告类型： | 科技报告 |
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