【摘要】 提出了一种以步进电机为执行器、预测函数与增压压力闭环反馈相结合的VGT控制系统,以期对喷嘴环截面积进行有效的控制,综合提高发动机的稳态和动态性能。在自行构建的软硬件系统上进行了试验,结果表明该方案简单易行,实用性很强。更多还原

【Abstract】 This paper introduces a VGT control system which is equipped with a step motor as the actuator. In order to effectively control the nozzle area so as to improve engine performance in both steady and transient states, a control scheme is worked out by combining predictive function and the super charged pressure feedback method. In the testing the system, satisfactory results are obtained. This system is proved to be simple and practical.更多还原