摘要
DCT主油路压力控制系统控制进入主油路的油压,维持DCT液压控制系统正常运行。为探究DCT主油路压力控制系统输出压力影响因素,分析了主压滑阀的结构和工作原理,在AMESim软件中建立了主油路压力控制系统仿真模型,对其动态特性进行仿真分析,运用批处理功能分析了温度、先导油压、阀芯质量、弹簧刚度、弹簧预紧力对输出压力的影响规律。仿真结果表明,温度对输出压力几乎无影响,降低阀芯质量可以提高系统的动态响应速度。先导油压大于10 bar、弹簧刚度小于1 N/mm、弹簧预紧力大于12 N时,才能获得稳定的输出油压,提高DCT液压控制系统运行的稳定性,进而为整个DCT正常平稳运行奠定了基础。所采用的方法和得到的结果可以为主压滑阀的结构设计和后续的参数优化提供一定的理论依据。
The DCT mainline pressure control system controls the oil pressure entering the mainline and maintains the normal operation of the DCT hydraulic control system.In order to determine the influence factors of the output pressure of the DCT mainline pressure control system,the structure and working principle of the main pressure spool valve were analyzed,a simulation model of the mainline pressure control system was established in the AMESim software.The dynamic characteristics of the mainline pressure control system were simulated and analyzed.The influences of temperature,pilot oil pressure,spool quality,spring stiffness,and spring preload force on output pressure were analyzed using the batch processing function.The simulation results show that temperature has almost no effect on the output pressure,the dynamic response speed of the system can be improved by reducing the spool quality.Only when the pilot oil pressure is greater than 10bar,spring stiffness is less than 1N/mm,and spring preload force is greater than 12 N,a stable output oil pressure can be obtained.It improves the stability of the DCT hydraulic control system and lays the foundation for the normal and stable operation of the entire DCT.The adopted methods and the obtained results can provide a certain theoretical basis for the structural design of the main pressure spool valve and subsequent parameter optimization.
作者
袁韶
赵振东
张广辉
吴金国
uan Shao;Zhao Zhendong;Zhang Guanghui;Wu Jinguo(School of Automobile and Rail Transit,Nanjing Institute of Technology,Nanjing 211167,China;Nanjing Auji Research Institute Co.,Ltd.,Nanjing 211000,China)
出处
《机电工程技术》
2022年第5期44-46,101,共4页
Mechanical & Electrical Engineering Technology
基金
江苏省第十六批“六大人才高峰”资助项目(编号:2019-JXQC-005)
南京工程学院人才引进科研基金项目(编号:YKJ201840)
南京工程学院大学生科技创新基金项目(编号:TB202117013)。
