Research on Design and Dynamics Characteristics of New Drive System with Dual Motors and Dual Planetary Gears for Heavy Electric Trucks

ZHENG Zhenhao; ZHAO Shengdun; GAO Zhijie; CAO Yangfeng; YANG Xiaoyin

doi:10.7652/xjtuxb202504002

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Research on Design and Dynamics Characteristics of New Drive System with Dual Motors and Dual Planetary Gears for Heavy Electric Trucks

Special Topic　New Principles and Intelligent Control of Drive and Transmission for New Energy Vehicles | 更新时间：2026-01-06

- Research on Design and Dynamics Characteristics of New Drive System with Dual Motors and Dual Planetary Gears for Heavy Electric Trucks
- Journal of Xi’an Jiaotong University Vol. 59, Issue 4, Pages: 16-26(2025)
- 作者机构：
  
  1.西安交通大学机械工程学院， 710049，西安
  2.西安交通大学西安市智能装备与控制重点实验室， 710049，西安
  3.金属成形技术与重型装备全国重点实验室， 710049，西安
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202504002
  CLC： TH132.46
- Received：31 October 2024，
  
  Online First：24 December 2024，
  
  Published：10 April 2025
- 稿件说明：
移动端阅览
ZHENG Zhenhao, ZHAO Shengdun, GAO Zhijie, et al. Research on Design and Dynamics Characteristics of New Drive System with Dual Motors and Dual Planetary Gears for Heavy Electric Trucks[J]. Journal of Xi’an Jiaotong University, 2025, 59(4): 16-26.
DOI：

ZHENG Zhenhao, ZHAO Shengdun, GAO Zhijie, et al. Research on Design and Dynamics Characteristics of New Drive System with Dual Motors and Dual Planetary Gears for Heavy Electric Trucks[J]. Journal of Xi’an Jiaotong University, 2025, 59(4): 16-26. DOI： 10.7652/xjtuxb202504002.

摘要

针对电动卡车采用的中央电机配合变速箱的驱动形式，造成驱动电机功率偏高、传动系统空间布置困难、传动效率低下等问题，以陕汽德龙M3000系列的18 t级牵引车为研究对象，提出了一种可以实现双电机转矩耦合驱动和单电机驱动两种工作模式的新型双电机双行星轮系轮边分布式驱动系统。理论计算了新型驱动系统中双永磁同步电机的基本参数；搭建了基于Workbench平台与Maxwell软件的联合仿真平台，提出了采用遗传算法的双电机参数多目标优化方法，得到了输出转矩、转矩波动率和最大反电动势的最优解；设计、制造、安装和调试了额定功率分别为60、30 kW，额定转速为3 500、1 500 r/min的双电机与双行星排机械结构总成以及计算机实验平台；构建了基于逻辑门限值的整车控制策略和基于矢量控制的电机控制方案，开展了两种工作模式电机性能实验以及工作模式切换实验。研究结果表明，设计的双电机双行星轮系驱动系统在两种工作模式下转速波动率最大为2.58%、转矩波动率最大为5.5%，具有较好的输出响应，为该型原理的实际应用提供了参考。

Abstract

Aiming at electric trucks adopt a driving configuration of a central motor combined with a gearbox

leading to issues such as high-power consumption of the driving motor

difficult spatial arrangement of the transmission system

and low transmission efficiency. Taking the Shaanxi automobile Delong M3000 series 18 t tractor as the research object

a novel dual-motor dual-planetary wheel-side distributed drive system capable of dual-motor torque-coupling drive and single-motor drive modes is proposed. The basic parameters of the dual permanent magnet synchronous motors in the new drive system are theoretically calculated. A joint simulation platform based on the Workbench platform and the Maxwell software is established

and a multi-objective optimization method for dual-motor parameters using genetic algorithms is proposed to obtain the optimal solutions for output torque

torque fluctuation rate

and maximum back electromotive force. The mechanical structure assembly of dual motors and dual planetary gears with rated powers of 60 and 30 kW

and rated speeds of 3 500 and 1 500 r/min

respectively

is designed

manufactured

installed

and tested along with a computer experimental platform. A vehicle control strategy based on logical threshold values and a motor control scheme based on vector control are developed

and experiments on motor performance in two operating modes and mode switching are conducted. The research results indicate that the designed dual-motor dual-planetary gear train drive system exhibits a maximum speed fluctuation rate of 2.58% and a maximum torque fluctuation rate of 5.5% in both operating modes

showing good output response and providing a reference for practical applications of this principle.

关键词

Keywords

references

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