压电喷射系统执行器驱动仿真及试验研究

Simulation and Experimental Study of Actuator Driving for Piezoelectric Injection System

在压电共轨喷射系统研究的基础上,对压电执行器不同驱动方式进行分析,并利用PSPICE软件进行电路仿真分析,最后进行了系统油泵台架试验。结果表明,设计的驱动电路具有良好适应性,能灵活调整压电执行器驱动特性,为下一步压电式共轨系统应用奠定了基础。

Driving modes of piezoelectric injector were analyzed based on the study of common rail system with piezoelectric actuator,and simulation software of PSPICE was used to analyze driving circuit.Finally fuel test bench experiments were carried out.It was showed by the results that the driving circuit had good adaptability,and driving performance of piezoelectric actuator could be adjusted flexibly.Therefore it lays a foundation for application development of piezoelectric common rail system.