Design of Rail Pressure Tracking Controller for Novel Fuel Injection System

doi:10.1007/s12204-013-1392-3

Abstract

Abstract: This paper proposes a rail pressure tracking controller based on a novel common rail system. A mathematical model, based on physical equations, is developed and used for feed forward control design. Rail pressure peak sampling mechanism is designed to remove the disturbance of rail pressure due to fuel injection. An enhanced tracking differentiator is designed to get smooth tracking signal and exact differential signal from signal with noise. Double loop control strategy is designed to decouple the system and to improve dynamic performance of the system. Experimental results indicate that fluctuation of rail pressure is within ±1MPa in steady condition, while within ±3MPa in transient condition, which verifies the effectiveness of the proposed rail pressure control strategy.

Key words: accumulating distribution fuel injection system (ADFIS)| rail pressure control| tracking differentiator|double loop control

摘要： This paper proposes a rail pressure tracking controller based on a novel common rail system. A mathematical model, based on physical equations, is developed and used for feed forward control design. Rail pressure peak sampling mechanism is designed to remove the disturbance of rail pressure due to fuel injection. An enhanced tracking differentiator is designed to get smooth tracking signal and exact differential signal from signal with noise. Double loop control strategy is designed to decouple the system and to improve dynamic performance of the system. Experimental results indicate that fluctuation of rail pressure is within ±1MPa in steady condition, while within ±3MPa in transient condition, which verifies the effectiveness of the proposed rail pressure control strategy.

关键词: accumulating distribution fuel injection system (ADFIS)| rail pressure control| tracking differentiator|double loop control

CLC Number:

U 664.121

HUA Hai-de* (华海德), MA Ning (马宁), MA Jie (马捷), HUANG He (黄河). Design of Rail Pressure Tracking Controller for Novel Fuel Injection System[J]. Journal of shanghai Jiaotong University (Science), 2013, 18(3): 264-270.

References

[1] Huang Guo-jun, Zhang You-tong, Su Hai-feng, et al. Research of common rail system feed-forward pressure control method based on flow characteristic [J]. Transactions of Beijing Institute of Technology, 2011, 31(3): 272-277 (in Chinese).
[2] Wang Hong-rong, Zhang You-tong, Wang Jun, et al. Pressure control of high pressure common rail diesel engine [J]. Transactions of Beijing Institute of Technology, 2008, 28(9): 778-781 (in Chinese).
[3] Chen Lin, Yang Fu-yuan, Yang Xue-qing, et al. Model-based controller framework for a common rail diesel engine [J]. Journal of Tsinghua University: Science and Technology, 2010, 50(7): 1077-1081 (in Chinese).
[4] Chen Hai-long, Ouyang Guang-yao, Xu Hai-cheng. Research on simulation of rail pressure control based on pump control valve [J]. Chinese Internal Combustion Engine Engineering, 2009, 30(2): 57-60 (in Chinese).
[5] Catania A E, Ferrari A, Manno M. Development and application of a complete multijet commonrail injection-system mathematical model for hydrodynamic analysis and diagnostics [J]. Journal of Engineering for Gas Turbines and Power, 2008, 130(6): 181-192.
[6] Lino P, Maione B, Rizzo A. Nonlinear modeling and control of a common rail injection system for diesel engines [J]. Applied Mathematical Modeling, 2007, 31(9): 1770-1784.
[7] Gupta V K, Zhang Z, Sun Z X. Modeling and control of a novel pressure regulation mechanism for common rail fuel injection systems [J]. Applied Mathematical Modeling, 2011, 35(7): 3473-3483.
[8] Shiraishi H, Ipri S L, Cho D I D. CMAC neural network controller for fuel-injection systems [J]. IEEE Transactions on Control Systems Technology, 1995, 3(1): 32-38.
[9] Mahmoud N A, Khalil H K. Asymptotic regulation of minimum phase nonlinear systems using output feedback [J]. IEEE Transactions on Automatic Control, 1996, 41(10): 1402-1412.
[10] Han Jing-qing, Wang Wei. Nonlinear trackingdifferentiator [J]. Journal of Systems Science and Complexity, 1994, 14(2): 177-183 (in Chinese).
[11] Wang X H, Chen Z Q, Yang G. Finit-timeconvergent differentiator based on singular perturbation technique [J]. IEEE Transactions on Automatic Control, 2007, 52(9): 1731-1737.
[12] Levant A. Robust exact differentiation via sliding mode technique [J]. Automatica, 1998, 34(3): 379-384.
[13] Levant A. High-order sliding modes, differentiation and output-feedback control [J]. International Journal of Control, 2003, 76(9-10): 924-941.
[14] Efimov D V, Fridman L. A hybrid robust non-homogeneous finite-time differentiator [J]. IEEE Transactions on Automatic Control, 2011, 56(5): 1213-1219.