摘要
为提高汽车动力总成悬置系统的隔振性能,建立了同时考虑动力总成及车身垂直、俯仰方向的6自由度半车主动悬置系统动力学模型。考虑作动器动态特性对系统控制精度的影响,采用分目标控制的方式,将主动悬置系统分成悬置部分和作动器两部分。对悬置部分设计了适应性强、鲁棒性好且易于实现的模糊控制器及变论域模糊控制器,作动器电路部分则选择简单实用的PID控制器,并利用粒子群算法对PID参数进行优化。为验证控制器的效果,以发动机和路面的联合激励为系统输入进行仿真。结果表明:与被动悬置系统相比,采用分目标控制的主动悬置系统,作动器能更好地跟踪输出悬置所需的理想控制力,使得系统各方面性能均得到不同程度的改善,提高了整车舒适性水平。
In order to improve the vibration isolation performance of the vehicle powertrain mounting system,a dynamic model of a six-degree-of-freedom( DOF) semi-vehicle active mounting system considering both the powertrain and the vertical and vertical directions of the vehicle body is established. Considering the influence of the dynamic characteristics of the actuator on the control precision of the system,the active mounting system is divided into two parts: the mount part and the actuator by means of sub-target control. A fuzzy controller and a variable universe fuzzy controller which are adaptable,robust and easy to implement are designed for the mounting. The actuator circuit part selects a simple and practical PID controller and uses the particle swarm algorithm to optimize the PID parameters. To verify the effectiveness of the controller,the system inputs were simulated with a joint excitation of the engine and the road. The results show that compared with the passive mounting system,the active mounting system with sub-target control can better track the ideal control force required for the mount. The performance of all aspects of the system has been improved to varying degrees and improved the level of vehicle comfort.
作者
付江华
王恒
陈哲明
陈宝
申秀敏
FU Jianghua;WANG Heng;CHEN Zheming;CHEN Bao;SHEN Xiumin(Key Laboratory of Automotive Parts Manufacturing and Testing Technology,Ministry of Education,Chongqing University of Technology,Chongqing 400054,China;Jinkang New Energy Automobile DesignInstitute Co.,Ltd.,Chongqing 401135,China)
出处
《重庆理工大学学报（自然科学）》
CAS
北大核心
2020年第7期10-18,共9页
Journal of Chongqing University of Technology：Natural Science
基金
重庆市科委基础与前沿研究计划项目(cstc2018jcyjAX0109)
重庆市教委2018研究生导师团队项目
重庆理工大学研究生创新资助项目(ycx2018101)。
