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Research on shift schedule of hybrid bus based on dynamic programming algorithm

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3 Author(s)
Huilong Yu ; Intell. Vehicle Res. Dept., Beijing Inst. of Technol., Beijing, China ; Junqiang Xi ; Yongdan Chen

In this paper, shift schedule of a hybrid bus equipped with Automated Mechanical Transmission (AMT) is researched. Although the one-parameter or two-parameter shift schedule is usually used for hybrid buses, this approach cannot make full use of the advantage of hybrid driving. A new shift schedule, which is based on Dynamic Programming algorithm, is proposed for hybrid buses, a solving algorithm is also presented. The best shifting points for the hybrid buses are obtained via the proposed shift schedule when they work in the typical urban driving-cycle conditions in China. After comparing with the traditional two-parameter shift schedule and the best fuel economy shift schedule, the best shifting points are proved to significantly improve the fuel economy of the hybrid buses and the frequent shifting situation is obviously reduced.

Published in:

Intelligent Transportation Systems (ITSC), 2012 15th International IEEE Conference on

Date of Conference:

16-19 Sept. 2012