F - Mech Eng,Light,Heat,Weapons – 02 – D
Patent
F - Mech Eng,Light,Heat,Weapons
02
D
F02D 41/04 (2006.01) F01L 1/34 (2006.01) F01L 1/344 (2006.01) F01L 13/00 (2006.01) F02D 13/02 (2006.01) F02D 35/02 (2006.01) F02D 37/02 (2006.01) F02D 41/00 (2006.01) F02D 45/00 (2006.01) F02P 5/15 (2006.01) F02M 25/07 (2006.01)
Patent
CA 2431258
A device for controlling an internal combustion engine, comprising a variable valve mechanism for varying opening areas (valve lift) or the working angles (valve--opening periods) of at least either the intake valves or the exhaust valves, wherein a pressure in the cylinder is calculated based on the opening area or the working angle of at least either the intake valve or the exhaust valve varied by the variable valve mechanism, and the internal combustion engine is controlled based on the pressure in the cylinder. Upon calculating the pressure in the cylinder based on the opening areas or the working angles of the intake and exhaust valves, it is possible to more suitably control the internal combustion engine based not only upon the peak combustion pressure in the cylinder like when a combustion pressure sensor is used but also upon a pressure in the cylinder at a moment other than the peak combustion pressure.
L'invention concerne un commande de moteur à combustion interne comportant un système de soupapes variables destiné à modifier la zone d'ouverture (levée des soupapes) ou un angle de travail (période d'ouverture des soupapes) d'une soupape d'admission et/ou d'une soupape d'échappement. Une pression cylindre est calculée sur la base de la zone d'ouverture ou de l'angle de travail de la soupape d'admission et/ou de la soupape d'échappement commandées par le système de soupapes variables. Le moteur à combustion interne est commandé sur la base de la pression cylindre. Cependant, ledit moteur à combustion interne peut être commandé de façon plus appropriée sur la base de la pression cylindre à l'instant du pic de pression de combustion, et de la pression cylindre à d'autres instants relevée au moyen d'un capteur de pression de combustion.
Ehara Masato
Fuwa Naohide
Kanamaru Masanobu
Konishi Masaaki
Osanai Akinori
Gowling Lafleur Henderson Llp
Toyota Jidosha Kabushiki Kaisha
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