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Motor shifting and torque distribution control of a multi-motor driving system in electric construction vehicles
Advances in Mechanical Engineering ( IF 2.1 ) Pub Date : 2021-06-29 , DOI: 10.1177/16878140211028446
Weikang Kong 1 , Jixin Wang 1 , Dewen Kong 1 , Yuanying Cong 2 , Shuangshi Feng 3
Affiliation  

With the rapid development of the world economic construction and the shortage of energy, it has become a hot research issue to realize the electrification of the vehicle driving system and improve energy efficiency. Most of the electric construction machinery power systems are characterized by low speed and high load. The coordinated driving of multiple motors can increase the output torque and improve the transmission efficiency of the machine on the basis of a compact layout. A novel configuration of electric construction vehicles based on multi-motor and single-speed and its driving torque distribution control method is presented in this paper. The detailed mathematical model is established and the simulation analysis is carried out based on it. The results show that the proposed multi-motor driving system with the control strategy can improve the overall efficiency in the condition of ensuring the driving force when the parameter matching and motors choosing reasonably.



中文翻译:

电动工程车辆多电机驱动系统的电机换挡及扭矩分配控制

随着世界经济建设的快速发展和能源的紧缺,实现汽车驱动系统的电气化、提高能源利用效率已成为研究的热点问题。大部分电动工程机械动力系统的特点是低速高负荷。多台电机协同驱动,在布局紧凑的基础上,可增加输出扭矩,提高机器的传动效率。提出了一种基于多电机单速的电动工程车新构型及其驱动力矩分配控制方法。建立了详细的数学模型,并在此基础上进行了仿真分析。

更新日期:2021-06-30
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