机械科学与技术2024，Vol.43Issue(12)：2039-2047,9.DOI:10.13433/j.cnki.1003-8728.20230159
商用车电控气压继动阀的建模与分析
Modeling and Analysis of Electronical Pneumatic Relay Valve for Commercial Vehicle
摘要
Abstract
In order to solve the problem of slow response speed of the traditional pneumatic brake system of commercial vehicles,an electronical pneumatic relay valve is designed in this paper,and its working process is modeled and analyzed.Firstly,based on the structural characteristics of the designed relay valve and the working principle of the braking process,a mathematical model including the relationship between the driving voltage and the output pressure of the relay valve is established.Then,a semi-physical model was built in AMESim and compared with the mathematical model to verify the correctness of the mathematical model.Further tests are carried out by building a test bench,and the results show that the response rate errors of the mathematical model and the semi-physical model are 3.12％and 0.433％,respectively.Finally,the test proves that the response speed of the output air pressure from the foot valve to the wheel brake air chamber can be increased by 26.4％after using the designed relay valve.关键词
气压制动系统/电控气压继动阀/数学建模/半物理建模/AMESimKey words
pneumatic brake system/electronical pneumatic relay valve/mathematical model/semi-physical modeling/AMESim分类
机械制造引用本文复制引用
贺龙,张柳柳,卢正弘,张申奥..商用车电控气压继动阀的建模与分析[J].机械科学与技术,2024,43(12):2039-2047,9.基金项目
河北省自然科学基金创新研究群体项目(F2020203013) （F2020203013）
