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	Closed-loop control for diesel engine air systems equipped with vacuum actuators
	Zhang Kexun ; Li Jin ; Zhou Ming ; Li Jianqiu ; Yang Fuyuan ; Ouyang Minggao
	2010-05-11 ; 2010-05-11
关键词	Practical/ actuators closed loop systems compressors diesel engines exhaust systems friction fuel systems hysteresis nozzles/ closed-loop control diesel engine air systems vacuum actuators exhaust gas recirculation variable nozzle turbocharger technology system control algorithm friction hysteresis delays feedforward algorithms industrial application/ C3340B Control of heat systems C3260 Actuating and final control devices E1550 Control technology and theory E2140 Tribology (mechanical engineering) E2200 Mechanical components, systems and devices E2320 Engines
中文摘要	Exhaust gas recirculation (EGR) and variable nozzle turbocharger technology (VNT) systems are normally controlled by vacuum actuators. A combined control algorithm was developed for VNT and EGR systems to improve control of the air system. This paper describes the analysis of the system characteristics and the control target. Test results show the unloaded displacement and friction in the vacuum actuator lead to hysteresis and delays. Hence, the control system needs to use feedback and feedforward algorithms. Further test results verifies that the system response time is improved significantly by the algorithm with good steady-state performance. The algorithm can provide precise control to the target, and establishes the base of industrial application for the system.
语种	中文 ; 中文
出版者	Tsinghua Univ. Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/25502]
专题	清华大学
推荐引用方式 GB/T 7714	Zhang Kexun,Li Jin,Zhou Ming,et al. Closed-loop control for diesel engine air systems equipped with vacuum actuators[J],2010, 2010.
APA	Zhang Kexun,Li Jin,Zhou Ming,Li Jianqiu,Yang Fuyuan,&Ouyang Minggao.(2010).Closed-loop control for diesel engine air systems equipped with vacuum actuators..
MLA	Zhang Kexun,et al."Closed-loop control for diesel engine air systems equipped with vacuum actuators".(2010).

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