A Novel Electric Vehicle Powertrain System Supporting Multi-Path Power Flows: Its Architecture, Parameter Determination and System Simulation

Yujun Shi, Jin Wei, Zhengxing Deng and Linni Jian
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Yujun Shi: Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
Jin Wei: Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
Zhengxing Deng: Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
Linni Jian: Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China

Energies, 2017, vol. 10, issue 2, 1-15

Abstract: In this paper, a novel electric vehicle powertrain system is proposed. In the system, a coaxial magnetic gear (CMG), an electromagnetic clutch, a lock, and two electric machines (EMs) are adopted to achieve the power-split by controlling the states of the clutch and the lock, which enables electric vehicles (EVs) to work in four operation modes. The configuration, power flow paths and operation modes are depicted in detail. A dynamic model is established to help determine the parameters and build simulation models. The simple control strategy is adopted to achieve flexible power-splits. How to determine the relevant parameters to meet the drive requirements in the powertrain system is also elaborated. A dynamic simulation using MATLAB/Simulink is performed to take into account the control strategy and New European Drive Cycle. Finally, the simulation results demonstrate, in theory, the rationality of the determined parameters and the feasibility of the operation modes as well as the control strategy.

Keywords: coaxial magnetic gear; electric vehicle; power-split; powertrain (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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