کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1065995 | 948663 | 2012 | 9 صفحه PDF | دانلود رایگان |

This paper develops a robust, data-driven Markov Chain method to capture real-world behaviour in a driving cycle without deconstructing the raw velocity–time sequence. The accuracy of the driving cycles developed using this method was assessed on nine metrics as a function of the number of velocity states, driving cycle length and number of Markov repetitions. The road grade was introduced using vehicle specific power and a velocity penalty. The method was demonstrated on a corpus of 1180 km from a trial of electric scooters. The accuracies of the candidate driving cycles depended most strongly on the number of Markov repetitions. The best driving cycle used 135 velocity modes, was 500 s and captured the corpus behaviour to within 5% after 1,000,000 Markov repetitions. In general, the best driving cycle reproduced the corpus behaviour better when road grade was included.
► The accuracy of the Markov method in drive cycle analysis depend on the number of repetitions.
► The best driving cycle is 500 s, using 135 velocity modes.
► General corpus behaviour requires less than 1000 Markov repetitions and accurate corpus behaviour up to 1,000,000.
Journal: Transportation Research Part D: Transport and Environment - Volume 17, Issue 5, July 2012, Pages 389–397