Virtual pressure sensor for a common rail injection system

Details Virtual pressure sensor for a common rail injection system Virtual pressure sensor for a common rail injection system

2006-02-14

2006-02-14

Lo, Weilun (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C123S456000, C123S494000

Reexamination Certificate

active

06997164

ABSTRACT:
A Common Rail injection system of an endothermic engine, the injection system including at least one fuel pressure accumulating tank, of the rail type, having an input in fluid communication with a high-pressure pump and a plurality of outputs for feeding corresponding injectors by using pressure regulating means connected and depending on an electronic control unit. Advantageously a virtual pressure sensor includes a fluid-dynamic model of the accumulating tank suitable to estimate and to obtain fluid pressure values used by the electronic control unit for driving the injection means of the Common Rail injection system.

REFERENCES:
patent: 5609136 (1997-03-01), Tuken
patent: 6085727 (2000-07-01), Nakano
patent: 6308685 (2001-10-01), Becker
patent: 6311669 (2001-11-01), Przymusinski et al.
patent: 6484696 (2002-11-01), Barnes et al.
patent: 1 022 452 (2003-10-01), None
patent: 2 803 875 (2001-07-01), None
patent: 2 808 051 (2001-10-01), None
Yang, W.C. et al., “Dynamic Modeling and Analysis of Automotive Multi-Port Electronic Fuel Delivery System,”Journal of Dynamic Systems, Measurement and Control113:143-151, Mar. 1991.

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