Internal-combustion engines – Poppet valve operating mechanism – Electrical system
Reexamination Certificate
2005-03-15
2005-03-15
Denion, Thomas (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
Electrical system
C123S090150, C251S129100, C251S129150, C251S129160, C701S102000, C701S105000, C701S115000
Reexamination Certificate
active
06866012
ABSTRACT:
A main CPU determines whether or not there is a request for one valve driving based on an engine operating state such as an engine speed and a load factor, with reference to a control map. When it is determined that there is a request for one valve driving, it is determined whether or not there is an overlapping period between opening periods. When it is determined that there is no overlapping period, a high speed control is performed for controlling electromagnetically driven valves. When it is determined that there is no request for one valve driving, or when it is determined that there is the overlapping period, a low speed control is performed for controlling electromagnetically driven valves.
REFERENCES:
patent: 4641613 (1987-02-01), Delesalle
patent: 6202608 (2001-03-01), Yamaki et al.
patent: 6505113 (2003-01-01), Eichenseher et al.
patent: 6626146 (2003-09-01), Yanai et al.
patent: 6636782 (2003-10-01), Morikawa et al.
patent: 20020011101 (2002-01-01), Hartke et al.
patent: 1 104 844 (2001-06-01), None
patent: A 9-189209 (1997-07-01), None
patent: A 2000-234534 (2000-08-01), None
patent: A 2001-207875 (2001-08-01), None
patent: A 2001-221022 (2001-08-01), None
Fuwa Toshio
Hayase Yuichiro
Kadowaki Yoshinori
Tsubone Kenji
Yanai Akihiro
Kenyon & Kenyon
Riddle Kyle M.
Toyota Jidosha & Kabushiki Kaisha
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