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An Analysis of Idling Stop Time Using Real On-road Driving Data  

Hong, Seong-Tae (인하대학교 기계공학과)
Lee, Beom-Ho (인하대학교 기계공학과)
Lee, Dae-Yeop (인하대학교 기계공학과)
Sim, Mu-Gyeong (강원대학교 환경공학과)
Im, Jae-Myeong (강원대학교 환경공학과)
Publication Information
Journal of Korean Society of Transportation / v.28, no.1, 2010 , pp. 25-38 More about this Journal
Abstract
In this study, the real on-road driving data were analyzed to draw the various characteristics related to idling of vehicles. The results revealed that the average idling time of a city bus corresponds to 30.9% of the total daily driving time. Among this, for about 21.6% of the total daily driving time, it is available that an engine can be halted while the vehicle stops. It is a daytime when the portion of time, for which idling stop is available, is peak. Due to idling stop, an increase of turnaround was not found throughout this analysis. When a city bus stops at a traffic right, idling periods were long enough to execute the idling stop, during which an engine halts. Whereas, during the idling time for bus stops, the idling periods were not so long enough to execute idling stop. Deceleration periods among the total turnarounds of a city bus occupies about 24.7%, during which, for about 30%, a deceleration maintains for more than four seconds. Thus, using the energy during deceleration period, which then can be recovered from braking energy, it was also found that a hybrid system can be effectively implemented to a city bus.
Keywords
Idling Stop; Idling Stop Time; Idling Stop Execution Rate; $CO_2$ Reduction; Fuel Saving;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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