自调整模糊控制在汽车发动机主动隔振中的应用

Applying self-adjustment fuzzy controller for positive vibration isolation of automobile engines

应用AMESim软件建立发动机-车身振动模型,设计了两输入单输出的自调整模糊控制器,根据经验和理论分析制定模糊控制规则,运用Matlab/Simulink建立联合仿真模型,并进行了台架实验验证.仿真结果与试验结果表明,与被动控制相比,模糊控制有比较好的控制效果,较大程度降低发动机传递到车身的振动,改善了乘坐舒适性.

In this study, an engine-body vibration model is first developed using AMESim^TM software. Afterwards, a self-adjustment fuzzy controller, along with two inputs and one output, is designed. A fuzzy control rule is then determined based on experience and theoretical analysis. By applying such software as AMESim^TM and MATLAB/Simulink^TM, an integrated simulation model is subsequently established for platform testing and validation. Referring to the simulation and testing results, the fuzzy control system is more effective in comparison with the passive control. Consequently, it is observed that the vibration, which is from the automobile engine to body, is significantly eliminated. Therefore, the riding comfort is ingly improved.