A Design Methodology for Dual-Mode Electro-Mechanical Transmission Scheme Based on Jointing Characteristics

Xueliang Li, Xinyu Kang, Xin Ba, Zengxiong Peng, Shujun Yang and Zhifu Zhao
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Xueliang Li: Hebei Key Laboratory of Special Delivery Equipment, Yanshan University, Qinhuangdao 066004, China
Xinyu Kang: Hebei Key Laboratory of Special Delivery Equipment, Yanshan University, Qinhuangdao 066004, China
Xin Ba: National Engineering Laboratory for Electric Vehicles, Beijing Institute of Technology, Beijing 100081, China
Zengxiong Peng: Science and Technology on Vehicle Transmission Laboratory, Beijing Institute of Technology, Beijing 100081, China
Shujun Yang: Hebei Key Laboratory of Special Delivery Equipment, Yanshan University, Qinhuangdao 066004, China
Zhifu Zhao: Hebei Key Laboratory of Special Delivery Equipment, Yanshan University, Qinhuangdao 066004, China

Energies, 2022, vol. 15, issue 15, 1-15

Abstract: Electro-mechanical transmission is the best choice for the transmission system of military, engineering and other heavy special vehicles. The scheme design is fundamental and key to realize the original innovation of the electro-mechanical transmission. Therefore, a novel design method of a planetary-gear scheme is proposed for electro-mechanical transmission. According to the distribution of mechanical points and the speed continuous condition of mode switching, the mode combination law of a dual-mode electro-mechanical transmission is obtained, i.e., the input split mode based on the scheme of three-degree-of-freedom (3-DOF) and the compound split mode based on the scheme of 2-DOF. Moreover, a design method for an electro-mechanical transmission scheme is proposed based on the mode combination law. Two single-mode schemes are combined to form a dual-mode scheme, and then mode jointing, control logic, isomorphism and other screening conditions are in turn used to screen schemes; therefore, two optimized schemes are obtained ultimately. Lastly, by analyzing the characteristics of speed, torque and the power split of the optimized schemes, the accuracy of the proposed design method in this paper is verified. The proposed design method can provide new ideas of designing multi-mode and multi-output electro-mechanical transmission schemes.

Keywords: electro-mechanical transmission; scheme design; planetary-gear; mode combination; jointing condition (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: 2022
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