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arXiv · 1910.01785

Co-optimization of Speed and Gearshift Control for Battery Electric Vehicles Using Preview Information

Kyoungseok Han·Nan Li·Ilya Kolmanovsky·Anouck Girard·Yan Wang·Dimitar Filev·Edward Dai
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Abstract

This paper addresses the co-optimization of speed and gearshift control for battery electric vehicles using short-range traffic information. To achieve greater electric motor efficiency, a multi-speed transmission is employed, whose control involves discrete-valued gearshift signals. To overcome the computational difficulties in solving the integrated speed-and-gearshift optimal control problem that involves both continuous and discrete-valued optimization variables, we propose a hierarchical procedure to decompose the integrated hybrid problem into purely continuous and discrete sub-problems, each of which can be efficiently solved. We show, by simulations in various driving scenarios, that the co-optimization of speed and gearshift control using our proposed hierarchical procedure can achieve greater energy efficiency than other typical approaches.

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Kyoungseok Han, Nan Li, Ilya Kolmanovsky, Anouck Girard, Yan Wang, Dimitar Filev, Edward Dai. 2019-10-04. Co-optimization of Speed and Gearshift Control for Battery Electric Vehicles Using Preview Information. https://arxiv.org/abs/1910.01785

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