Robust Common-Rail Pressure Control for a Diesel-Dual-Fuel Engine Using QFT-Based Controller

2009 ◽  
Author(s):  
Withit Chatlatanagulchai ◽  
Tanet Aroonsrisopon ◽  
Krisada Wannatong
Keyword(s):  
Pressure Control ◽  
Common Rail ◽  
Dual Fuel ◽  
Rail Pressure ◽  
Rail Pressure Control ◽  
Common Rail Pressure ◽  
Common Rail Pressure Control

Robust common rail pressure control algorithm for light-duty diesel engines

2013 ◽  
Vol 46 (21) ◽  
pp. 717-722 ◽  
Author(s):  
Seungwoo Hong ◽  
Jaewook Shin ◽  
Inseok Park ◽  
Myoungho Sunwoo ◽  
Jongik Jeon ◽  
...  
Keyword(s):  
Diesel Engines ◽  
Control Algorithm ◽  
Pressure Control ◽  
Common Rail ◽  
Rail Pressure ◽  
Light Duty ◽  
Rail Pressure Control ◽  
Common Rail Pressure ◽  
Common Rail Pressure Control

Feed Forward Active Disturbance Rejection Control Method for Common-Rail Pressure Control of Diesel Engine

2011 ◽  
Vol 383-390 ◽  
pp. 816-821 ◽  
Author(s):  
Wen Qing Huang ◽  
You Tong Zhang ◽  
Guo Jun Huang
Keyword(s):  
Pid Controller ◽  
Pressure Control ◽  
Common Rail ◽  
Rail Pressure ◽  
Feed Forward ◽  
Active Disturbance Rejection ◽  
Disturbance Rejection Control ◽  
Rail Pressure Control ◽  
Common Rail Pressure ◽  
Common Rail Pressure Control

The precise pressure control in common rail is the prerequisite for the excellent performance of common rail diesel engine. Because of the complexity of engine working conditions, conventional PID controller cannot meet the demand of flexible control of common rail pressure, especially when engine load changes largely and rapidly. To overcome the shortcomings of conventional PID, feed forward Active Disturbance Rejection Control (ADRC) has been applied in the common rail pressure control system. The high pressure common rail system layout is drawn and the principle of common rail pressure control is introduced. Four control functions are carried out: “Rail pressure set point calculation”, “Feed forward controller”, “ADRC controller”, and “Flow to duty cycle”. Finally, experimental results comparing between feed forward ADRC controller and conventional PID controller shows that: feed forward ADRC controller is more effective than conventional PID controller because it is smaller in error, quicker in track speed and stronger in anti-jamming ability. It ensures the common rail engine meet the strict specification of the law based on the good dynamic performance.

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