新型耦合式双电机轮毂驱动系统方案设计  

Design of a Novel Coupled Dual Motor Hub Drive System Scheme

作　　者：李学良 刘厚德 刘鑫磊 杨树军[1,2] 吴维[3] Li Xueliang;Liu Houde;Liu Xinlei;Yang Shujun;Wu Wei(College of Vehicles and Energy,Yanshan University,Qinhuangdao 066004;Yanshan University,Hebei Key Laboratory of Special Delivery Equipment,Qinhuangdao 066004;School of Mechanical Engineering,Beijing Institute of Technology,Beijing 100081)

机构地区：[1]燕山大学车辆与能源学院,秦皇岛066004 [2]燕山大学,特种运载装备河北省重点实验室,秦皇岛066004 [3]北京理工大学机械与车辆学院,北京100081

出　　处：《汽车工程》2025年第3期499-507,共9页Automotive Engineering

基　　金：国家自然科学基金青年科学基金(52102429);河北省教育厅高等学校科技计划青年基金(QN2021137)资助。

摘　　要：为解决单级减速轮毂驱动系统无法满足特种车辆性能指标,而二级减速须额外增加操纵机构的问题,本文以低速时转矩耦合模式、中高速时转速耦合模式,且自主模式切换为功能需求,提出了一种由双电机、行星齿轮机构以及单向离合器构成的新型耦合式双电机轮毂驱动系统方案,以最大功率利用率为目标进行了参数匹配;制定了模式自主切换控制策略,在相同的仿真初始条件下,相比于单电机两挡轮毂驱动系统,模式切换过程中耦合式双电机轮毂驱动系统最大车速波动减小了81.25%,最大加速度偏差减少了81.58%;制定了瞬时最优控制策略,在同一循环工况下,相比于单电机两挡轮毂驱动系统,耦合式双电机轮毂驱动系统减少了21.42%的耗电量。并利用原理样机进行了试验,进一步验证了新型耦合式双电机轮毂驱动系统构型方案的功能和可行性。To solve the problem that a single-stage reduction hub drive system cannot meet the performance specifications of specialized vehicles,and that a two-stage reduction would require the addition of extra control mechanisms,a novel coupled dual motor hub drive system scheme which is composed of two motors,a planetary gear mechanism,and a one-way clutch is proposed in this paper.The system is designed to operate in two coupling modes:torque coupling mode at low speed and speed coupling mode at medium and high speed with an autonomous mode switching capability as a functional requirement.Parameter matching is conducted with the objective of maximizing power utilization rate,and a control strategy for autonomous mode switching is developed.Under the same simulation initial condition,compared to the single motor two speed hub drive system,the coupled dual motor hub drive system exhibits an 81.25%reduction in maximum vehicle speed fluctuation and an 81.58%decrease in maximum acceleration during the mode switching process.An instantaneous optimal control strategy is established.Under the same operating conditions,the coupled dual motor hub drive system demonstrates a 21.42%reduction in energy consumption compared to the single motor two-speed hub drive system.Experimental tests are conducted using a prototype model to further validate the functionality and feasibility of the novel coupled dual motor hub drive system.

关 键 词：轮毂驱动 耦合式双电机 行星齿轮 模式自主切换 

分 类 号：U463.2[机械工程—车辆工程]