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CSME 2024/12
Volume 45 No.6
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553-562
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Research on the Closed-Loop Control of Common Rail Pressure by Simulated Calculation based on Mathematical Algorithm
Qiang Zhu a and Jiehui Li b
aSchool of Automotive and Traffic Engineering, Jiangsu University, 301 Xuefu Road, ZhenJiang212013, China
bSchool of Automotive and Traffic Engineering, Jiangsu University, 301 Xuefu Road, ZhenJiang212013, China
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Abstract:
The control of common rail pressure influences
the power, economy, and exhausted emission of the
engine in the High Pressure Common Rail Injection
System (HPCRIS), in which the fluctuation amplitude
of steady state and the transient tracking speed are
important indexes of controller’s performance. To
improve the performance of the controller, a HPCRIS
control module is firstly developed based on the
physical model, including rail pressure control state
machine, demand flow calculation module and fuel
metering control unit. Secondly, control strategy is
validated by co-simulation between the HPCRIS
control module built in the Matlab/Simulink
environment and controlled object of the HPCRIS
made in the AMESim environment. Finally, by
analyzing the simulation results, the performance of
HPCRIS control module is verified, which provides a
basis for the transplantation of new HPCRIS.
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Keywords: amesim, closed-loop, rail pressure control, simulink
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*Corresponding author; e-mail:
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©
2024
CSME , ISSN 0257-9731
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