A statistical operating cycle description for prediction of road vehicles’ energy consumption
| Autor: | Sixten Berglund, Fredrik Bruzelius, Bengt J H Jacobson, Lars Fast, Pär Johannesson, Pär Pettersson |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Truck
050210 logistics & transportation Stochastic modelling business.industry Computer science 020209 energy 05 social sciences Transportation 02 engineering and technology Energy consumption Modular design Curvature Automotive engineering 0502 economics and business 0202 electrical engineering electronic engineering information engineering Design process Sensitivity (control systems) business Energy (signal processing) General Environmental Science Civil and Structural Engineering |
| Zdroj: | Transportation Research Part D: Transport and Environment. 73:205-229 |
| ISSN: | 1361-9209 |
| Popis: | We propose a novel statistical description of the physical properties of road transport operations by using stochastic models arranged in a hierarchical structure. The description includes speed signs, stops, speed bumps, curvature, topography, road roughness and ground type, with a road type introduced at the top of the hierarchy to group characteristics that are often connected. Methods are described how to generate data on a form (the operating cycle format) that can be used in dynamic simulations to estimate energy usage and CO2 emissions. To showcase the behaviour of the description, two examples are presented using a modular vehicle model for a heavy-duty truck: a sensitivity study on impacts from changes in the environment, and a comparison study on a real goods transport operation with respect to energy usage. It is found that the stop intensity and topography amplitude have the greatest impact in the sensitivity study (8.3% and 9.5% respectively), and the comparison study implies that the statistical description is capable of capturing properties of the road that are significant for vehicular energy usage. Moreover, it is discussed how the statistical description can be used in a vehicle design process, and how the mean CO2 emissions and its variation can be estimated for a vehicle specification. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect