基于状态机的自动变速控制器仿真研究

Simulation Research of Automatic Transmission Controller Based on State Machiner

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和基于Matlab/

Abstract:

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 vehicle during the driving phase as the migration of multi-state events. The transmission shift point map and engine working characteristic map provided by the engine manufacturer. The vehicle dynamic performance simulation model was established using Matlab / Simulink and based on Matlab/ Stateflow toolbox established a simulation model of the shifting process, which simulated the output parameter characteristics of the model under normal driving, overspeed, and braking conditions, which verified 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.