Decoupling control algorithm research on diesel engine air system with p canonical forms

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作者：
机构：
[1] Zhang, Ke-Xun
[2] Chu, Quan-Hong
[3] Zhang, Chun
[4] Meng, Chang-Jiang
[5] Hao, Shou-Gang
[6] Li, Jin
来源：
Zhang, K.-X. (zkx02@mails.thu.edu.cn) | 1600年 / Chinese Society for Internal Combustion Engines, 92 Weijin Road, Tianjin, Meng Qing, 300072, China卷 / 34期
关键词：
Three term control systems - Integrated circuits - Timing circuits;
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摘要：
Transient control performance of the independent close-loop control algorithm applied in diesel engine VNT-EGR air system was not so satisfactory because of the air system coupling characteristics, so decoupling control algorithm of VNT-EGR air system based on diagonal matrix method was developed, and the coupling control objective and the decoupling link were expressed in P canonical forms. After reasonable simplification, a decoupling control algorithm adopting PID control method, very easy to implement and calibration was achieved. Experiment results show that in transient conditions, this decoupling control algorithm can trace control targets faster and avoid non-minimum phase characteristics compared with traditional independent close-loop control algorithm.
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