摘要
为了提高汽车防抱死制动系统(ABS)的控制精度,利用主缸压力控制ABS电机负载,通过系统配备实现滤波功能方式设计了一种电驱液压系统闭环控制,并给出了基于PI调节器的调速控制方案。利用AMESim构建ABS液压仿真模型,研究结果表明:提高制动主缸压力后,形成稳定的低压蓄能器状态,充液比例也明显提高。低压蓄能器充液过程中,可以达到低压蓄能器排液要求。电机调速系统表现出了优异的动态响应性能,仅形成了很小的静态误差,说明本次建立调速系统形成了合适的配制参数。在ABS电驱过程中加入脉宽调制方法时能够大幅减小电机噪声,由此得到降低ABS控制结构运行噪声的效果,也可以通过适当调节主缸压力来优化ABS综合控制能力。
In order to improve the control accuracy of vehicle anti-lock braking system(ABS),a closed-loop control of electric drive hydraulic system is designed by means of system equipped with filter function and a speed control scheme based on PI regulator is presented.The ABS hydraulic simulation model is built by AMESim,and the research results show that:after the pressure of the master cylinder is increased,a stable low pressure accumulator state is formed,and the liquid filling ratio is obviously increased.Low pressure accumulator filling process,can meet the low pressure accumulator discharge requirements.The motor speed control system shows excellent dynamic response performance,only formed a small static error,which shows that the establishment of the speed control system formed the appropriate configuration parameters.The motor noise can be greatly reduced when the pulse width modulation method is added in the process of ABS electric drive,thus the effect of reducing the running noise of ABS control structure can be obtained.The comprehensive control ability of ABS can also be optimized by adjusting the master cylinder pressure properly.
作者
崔秀虹
常浩
CUI Xiuhong;CHANG Hao(College of Mechanical Engineering,Jilin Transportation College,Changchun 130015,Jilin,China;College of Mechanical and Electrical Engineering,Changchun University of Science and Technology,Changchun 130015,Jilin,China)
出处
《中国工程机械学报》
北大核心
2023年第2期117-121,共5页
Chinese Journal of Construction Machinery
基金
国家自然科学基金资助项目(51775157)。
关键词
防抱死制动系统(ABS)
电机驱动
闭环控制
调速系统
仿真分析
动态响应
anti-lock braking system(ABS)
motor drive
closed-loop control
speed control system
simulation analysis
dynamic response
