摘要
针对传统汽车操纵稳定性设计中缺少经验导致参数匹配不合理、数字仿真分析模型建立过程复杂、数字仿真模型与实时仿真验证模型不一致等问题,在汽车操纵稳定性原理分析基础上,建立了基于刚体力学理论的三自由度操纵稳定性数学模型;采用Modelica语言的陈述式建模方法建立了其数字仿真模型,简化了建模过程;通过Simulink中Modelica模型导入接口,建立了其实时仿真模型,实现了数字仿真模型直接转换为实时仿真模型,为操纵稳定性实时仿真验证提供了技术支持,并以某型号车辆操纵稳定性分析为对象,对该方法进行了应用验证。
To solve the problems that the lack of experience and unreasonable parameters matching, the complexity of modeling and analyzing, and the difference between the off-line simulation model and the real-time simulation model in the traditional vehicle handling design, this paper analyses the stability of vehicle handling and its evaluation method. The 3-DOF vehicle handling mathematical model is presented using the mechanics theory of rigid body. And it is easy to build the 3-DOF model by the declarative equation method of Modleica. And the real-time combination simulation model is built by the S-function of Modelica and Matlab/Simulink. The method can transform the Modelica model to the Simulink model.A certain type of car is used as the object of study to test and verify the modeling method.
出处
《计算机工程与应用》
CSCD
北大核心
2015年第3期31-34,108,共5页
Computer Engineering and Applications
基金
国家科技支撑计划项目(No.2012BAF16G02)
