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.
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
.
DOI: 10.1007/s12204-013-1392-3
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