Air dynamic steady state and transient detection method for...

Details Air dynamic steady state and transient detection method for... Air dynamic steady state and transient detection method for...

2006-05-15

2008-12-16

Eshete, Zelalem (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090150, C123S090310

Reexamination Certificate

active

07464676

ABSTRACT:
An air dynamic steady state detection system for movement of a cam phaser of an internal combustion engine includes a cam position sensing device and a control module. The cam position sensing device generates a position signal based on a position of the cam phaser of the engine. The control module receives the position signal and applies first and second filters to the position signal to select either a transient or steady state condition. The control module also calculates an estimated air value based on the selection of the transient or steady state condition.

REFERENCES:
patent: 5690071 (1997-11-01), Jankovic
patent: 6738706 (2004-05-01), Cullen et al.
patent: 2003/0192495 (2003-10-01), Hagner et al.
patent: 0584856 (1994-03-01), None

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