Internal-combustion engines – Poppet valve operating mechanism – Electrical system
Reexamination Certificate
2006-09-26
2006-09-26
Denion, Thomas (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
Electrical system
C123S090150, C123S090240, C123S674000, C123S568160, C060S900000, C251S129040, C251S129180, C701S102000, C701S105000
Reexamination Certificate
active
07111594
ABSTRACT:
A method of operating an internal combustion engine having an; electromagnetically driven intake valves for a vehicle. With the method, deviation of an opening operation of the electromagnetically driven intake valve in response to a command signal for opening the intake valve from a predetermined characteristic is detected, and at least one of parameters used for controlling operation of the internal combustion engine is corrected so as to reduce a change in an intake air charging state in which the internal combustion engine is charge with the intake air. A valve closing timing of the intake valve or a valve closing timing of the exhaust valve that cooperates with the intake valve may be used as parameters to be corrected.
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Katsumata Shoji
Matsumoto Isao
Mizuta Tametoshi
Nishida Hideyuki
Ogiso Makoto
Denion Thomas
Oliff & Berridg,e PLC
Riddle Kyle M.
Toyota Jidosha & Kabushiki Kaisha
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