电动汽车改善最小转弯直径控制策略研究  

Research on control strategies for improving the minimum turning diameter in electric vehicles

作　　者：朱伯承 辛庆锋 姜军平 王亮 周宗成 Zhu Bocheng;Xin Qingfeng;Jiang Junping;Wang Liang;Zhou Zongcheng(Zhejiang Geely Holding Group Chongqing Ruilan Automotive Research Institute Co.,Ltd.,Chongqing 400700,China)

机构地区：[1]浙江吉利控股集团重庆睿蓝汽车研究院有限公司,重庆400700

出　　处：《汽车知识》2024年第10期45-48,共4页AUTOMOTIVE KNOWLEDGE

摘　　要：最小转弯直径可以直观地反映汽车的灵活性。在探讨优化控制最小转弯直径的研究中,关键在于理解并调整影响车辆转弯性能的各种因素。本文针对前轮驱动电动汽车进行研究,重点在于找到弯道工况下以通过性为目标的最优制动液压分配策略。采用对非驱动轮锁死协同控制外侧车轮的控制方案,通过仿真试验分析发现,引入该控制方案可以将最小转弯直径由10.82 m缩短至9.89 m,提升了车辆在转弯中的通过性表现,同时确保驾驶安全性和操控稳定性。The minimum turning diameter serves as a direct indicator of a vehicle's maneuverability.In studies aimed at optimizing the control of this parameter,it is crucial to comprehend and adjust various factors influenc-ing vehicular turning performance.This paper focuses on front-wheel-drive electric vehicles(FWD EVs),with research emphasizing the identification of an optimal hydraulic brake force distribution strategy for maximizing passability under cornering conditions.By implementing a coordinated control scheme that selectively locks the non-driven wheels while managing the outer wheel,simulation trials have revealed that introducing this control strategy can reduce the minimum turning diameter from 10.82 meters to 9.89 meters.This enhancement signifi-cantly improves the vehicle's passability during turns,all while ensuring driving safety and maintaining han-dling stability.

关 键 词：最小转弯直径 控制策略 制动液压 仿真试验 实车试验 

分 类 号：U469.72[机械工程—车辆工程]