Internal-combustion engines – Accessories – Covers – trays – vibrators – corrosion inhibitors – air filters
Reexamination Certificate
2006-04-11
2006-04-11
Kamen, Noah P. (Department: 3747)
Internal-combustion engines
Accessories
Covers, trays, vibrators, corrosion inhibitors, air filters
C701S101000
Reexamination Certificate
active
07025035
ABSTRACT:
A method for determining an event-based hydraulic control delay in a multi-displacement system for an internal combustion engine, with which to adjust the triggering a solenoid in hydraulic communication with a hydraulically-deactivatable valve train component, includes retrieving either a first mapped value representative of a time-based hydraulic deactivation delay, or a second mapped value representative of a time-based hydraulic reactivation delay, based on a current engine speed and a current oil temperature, preferably using different lookup tables for each of the first and second mapped values. The method further includes determining a current time period between generated crankshaft position pulses, and dividing either the first value or the second by the first time period to obtain either an event-based hydraulic deactivation delay or an event-based hydraulic reactivation delay. The event-based delays are thereafter used to synchronize the timing of solenoid operation when deactivating or reactivating given engine cylinders.
REFERENCES:
patent: 6752121 (2004-06-01), Rayl et al.
patent: 2002/0162540 (2002-11-01), Matthews et al.
patent: 2004/0244744 (2004-12-01), Falkowski et al.
patent: 2004/0244751 (2004-12-01), Falkowski et al.
Bates, B.; Dosdall, J. M.; and Smith, D. H.; “Variable Displacement by Engine Valve Control,” SAE Paper No. 780145 (New York, NY; 1978).
Mueller, Robert S.; and Uitvlugt, Martin W.; “Valve Selector Hardware,” SAE Publication No. 780146 (New York, NY; 1978).
Fukui, Toyoaki; Nakagami, Tatsuro; Endo, Hiroyasu; Katsumoto, Takehiko; and Danno, Yoshiaki; “Mitsubishi Orion-MD—A New Variable Displacement Engine,” SAE Paper No. 831007 (New York, NY; 1983).
Hatano, Kiyoshi; Iida, Kazumasa; Higashi, Hirohumi; and Murata, Shinichi; “Development of a New Multi-Mode Variable Valve Timing Engine,” SAE Paper No. 930878 (New York, NY; 1993).
McElwee, Mark; and Wakeman, Russell; “A Mechanical Valve System with Variable Lift, Duration, and Phase Using a Moving Pivot,” SAE Paper No. 970334 (New York, NY; 1997).
Yacoud, Yasser; and Atkinson, Chris; “Modularity in Spark Ignition Engines: A Review of its Benefits, Implementation and Limitations,” SAE Publication No. 982688 (New York, NY; 1998).
Zheng, Quan; “Characterization of the Dynamic Response of a Cylinder Deactivation Valvetrain System,” SAE Publication No. 2001-01-0669 (New York, NY; 2001).
Leone, T.G.; and Pozar, M.; “Fuel Economy Benefit of Cylinder Deactivation—Sensitivity to Vehicle Application and Operating Constraints,” SAE Paper No. 2001-01-3591 (New York, NY; 2001).
Patton, Kenneth J; Sullivan, Aaron M.; Rask, Rodney B.; and Theobald, Mark A.; “Aggregating Technologies for Reduced Fuel Consumption: A Review of the Technical Content in the 2002 National Research Council Report on CAFÉ,” SAE Paper No. 2002-01-0628 (New York, NY; 2002).
Falkowski, Alan G.; McElwee, Mark R.; and Bonne, Michael A.; “Design and Development of the Daimlerchrysler 5.7I Hemi Engine Multi -Displacement Cylinder Deactivation System,” SAE Publication No. 2004-01-2106 (New York, NY, May 7, 2004).
Bonne Michael A
Duty Mark J
Prucka Michael J
DaimlerChrysler Corporation
Kamen Noah P.
Smith Ralph E.
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