摘要
针对轮毂液压辅助驱动车辆蠕行模式下液压泵排量控制粗放的问题,提出一种蠕行模式控制方法。采用无级变速器的速比控制思想实现液压泵的排量控制,利用AMESim软件搭建轮毂液驱车辆仿真平台,验证蠕行模式控制方法的响应特性和控制效果。仿真结果表明,在系统工作范围内,提出的蠕行模式控制方法可以实现速比的无级控制,进而通过调节发动机工作点实现车辆的最佳经济性运行。该项研究对轮毂液驱车辆控制及实际开发应具有一定的借鉴价值。
Aiming at the rough control for hydraulic pump displacement in creep mode of hub-motor hydraulic auxiliary driving vehicle, a creep control method is proposed. The idea of speed ratio control of continuously variable transmission is adopted to achieve the displacement control of hydraulic pump. A simulation platform of hub-motor hydraulic driving vehicle is constructed with AMESim software, and the response characteristics and effects of the creep mode control method are verified. Simulation shows that the creep mode control method can realize continuous control of speed ratio within the working range of the hydraulic system, and the best economical operation of the vehicle is achieved via adjusting the working point of the engine.
作者
曾小华
刘持林
李文远
宋大凤
李立鑫
ZENG Xiaohua;LIU Chilin;LI Wenyuan;SONG Dafeng;LI Lixin(State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130025, China)
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
2019年第3期103-110,共8页
Journal of Xi'an Jiaotong University
基金
国家自然科学基金资助项目(51675214
51575221)
山东省重点研发计划资助项目(2017CXGC0510)
关键词
轮毂液压辅助驱系统
蠕行模式
无级速比控制
液压泵排量控制
hub-motor hydraulic auxiliary driving system
creep mode
continuous speed control
pump displacement control
