基于轮间耦合力最小的四轮独立驱动电动汽车驱动力分配方法  

Driving Force Distribute Method for 4WID Electrical Vehicle Based on The Smallest Coupling Force

作　　者：易星 张云[1] 马雷[2] YI Xing;ZHANG Yun;MA Lei(Jiangxi University of Technology, Nanchang, 330098, China;Yanshan University, Qinhuangdao 066004, China)

机构地区：[1]江西科技学院,江西南昌330098 [2]燕山大学,河北秦皇岛066004

出　　处：《江科学术研究》2018年第4期36-41,共6页Academic Research Of JXUT

基　　金：江西科技学院自然科学项目“作动器饱和输出对主动悬架性能的影响研究”(NO.ZR1706)

摘　　要：阐述了四轮独立驱动电动汽车驱动轮轮间耦合关系,采用轮间耦合力最小的驱动力分配策略使四个驱动轮都处于最佳附着状态,提高车辆行驶稳态裕度。然后以最优控制理论为基础,将实际与理想转矩间的偏差作为控制输入量,实现整车驱动转矩的控制,进而建立ADAMS与Matlab联合仿真模型。最后进行直线和弯道行驶工况下的仿真与实车实验,对比分析结果表明,轮间耦合力最小的分配策略有效改善了车辆驱动效果。The wheel coupling relationship of the four-wheel independent driving electric cars is described in this paper.The four driving wheels are in the best adhesion state with the wheel coupling force minimum allocation strategy,which increases the stability margin of vehicle.Then,on the basis of the optimal control theory,the deviation between the actual and ideal torque is taken as control input to realize the control of vehicle driving torque.And then ADAMS and Matlab joint simulation model is build.Finally,the simulation and real vehicle experiment is conducted under the condition of straight lines and curves,and the comparison and analysis of results show that vehicle driving effect is improved effectively with the wheel coupling force minimum allocation strategy.

关 键 词：电动汽车 四轮独立驱动 驱动力分配 耦合力 

分 类 号：U469.72[机械工程—车辆工程]