三轮农用运输车闭环系统转向性能的仿真研究

SIMULATION RESEARCH ON CORNERING PERFORMANCE OF AN AGRICULTURAL TRICYCLEDRIVER CLOSEDLOOP SYSTEM

在选择合适的驾驶员模型、三轮农用运输车模型的基础上，建立了二次换道道路模型，在此基础上导出了闭环操纵系统动力学数学模型的状态方程形式。提出了两项新的闭环操纵系统主动安全性单项评价指标。应用建立的状态方程，以二次换道为例，在时域内分析计算了三轮农用运输车的转向操纵动力学特性，以及主动安全性评价指标。仿真结果是正确而有效的，证实了闭环系统操纵性设计的重要性。

お? Based on choosing driver modal and agricultural tricycle modal ,and modelling of double lane change modal, a mathematics modal as a state equation of a closedloop maneuvering system is derived for an agricultural tricycle. Then two new single active safety evaluation indexes are presented by the author. After that a double lane change example is applied to analysing and calculating the cornering performance and the active safety evaluation indexes in time domain, by using the state equation. The simulation result shows that the method is correct and efficient, and demonstrates that the closedloop maneuvering system design is very important for farm vehicle design.