摘要
针对汽车发动机自动变速装置在不同运行状态下仿真建模的研究,提出基于有限状态机的建模方法;该方法通过将汽车行驶阶段的不同状态,建模为多状态事件的迁移,借助发动机厂家提供的变速器换挡点图以及发动机工作特性图,利用Matlab/Simulink建立了整车动力性能仿真模型,基于Matlab/Stateflow工具箱建立了换档过程的仿真模型,仿真模拟了正常行驶、超速以及刹车3种状态下,模型的发动机转速、车速与油门开度的对应关系,验证了模型的有效性;仿真结果表明建立的仿真模型和换档过程控制与厂家提供的技术参数吻合;该仿真方法的应用,避免了繁琐的数学建模和公式推导,可为相关工程问题的建模仿真提供借鉴意义。
Aiming at the research on the simulation modeling of automobile engine automatic transmission under different operating states,a modeling method based on finite state machine is proposed.This method models the different states of the automobile during the driving phase as the migration of multi-state events,with the help of engine manufacturers The transmission shift point map and engine working characteristic map provided by Matlab/Simulink were used to establish a vehicle dynamic performance simulation model and based on Matlab/Stateflow toolbox has established a simulation model of the shifting process,which simulates the corresponding relationship between the engine speed,vehicle speed,and throttle opening under normal driving,overspeed,and braking conditions,which verifies the validity of the model.The simulation results show that the established simulation model and shifting process control are consistent with the technical parameters provided by the manufacturer.The application of this simulation method avoids tedious mathematical modeling and formula derivation,and can provide reference for modeling and simulation of related engineering problems.
作者
陈旺
肖克平
叶振
徐乾
胡周达
Chen Wang;Xiao Keping;Ye Zhen;Xu Qian;Hu Zhouda(Yudean Group Guizhou Co.,Ltd.,Guiyang 550081,China;School of Automation Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China)
出处
《计算机测量与控制》
2020年第10期101-104,110,共5页
Computer Measurement &Control
基金
贵州省科技厅支撑项目(黔科合支撑[2018]2151)。
