基于AMEsim-Simulink微电机驱动的集成式比例控制滑阀仿真研究

Simulation of integrated proportional control sliding valve based on AMEsim-Simulinkwith micro-motor drive

研究拖拉机变速器上使用的一种微型步进电机驱动的新型比例控制滑阀,分析其结构特点和工作原理,在MATlab/Simulink中建立微型步进电机的模型,在AMEsim中建立常用的两位三通滑阀模型,利用联合仿真,对其工作特性进行研究。当出现油液温度改变、油液清洁度改变以及复位弹簧老化等现象时,对传统比例电磁阀和新型微电机驱动的比例阀所受到的影响作对比分析,仿真结果表明新型微电机驱动的比例阀自身有很好的刚性,基本不受外界因素变化影响,可以实现精确控制其位移、流量以及压力,为新型比例阀设计提供一定的理论参考。

A new proportional control slide valve driven by micro stepper motor applied in tractor was studied.The structural characteristics and working principle were analyzed.The model of micro stepper motor was established based on MATlab/Simulink and the commonly used 3-Way valve was established based on AMEsim.Its working characteristics were studied through co-simulation.When the temperature change of the oil,the change of oil cleanliness and the aging of the return spring occur,the effect on the conventional proportional solenoid valve and the new proportional valve driven by the new micro-motor were compared.The simulation results showed that the new micro-motor-driven valve itself had good rigidity,it was basically not affected by external factors,it could achieve precise control of its displacement,flow and pressure,and it provided a certain theoretical reference for the design of the new proportional valve.