Variable valve timing system and method for controlling the...

Details Variable valve timing system and method for controlling the... Variable valve timing system and method for controlling the...

2011-03-22

2011-03-22

Eshete, Zelalem (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090150, C123S090310

Reexamination Certificate

active

07909008

ABSTRACT:
In an intake valve phase control after an engine stop command is issued, a stop-time phase is used as a target value. In the intake valve phase control, when the mode changeover condition is not satisfied, and an electric motor that serves as an actuator is not in a locked-state, the highest-speed mode, in which the amount of electric power supplied to the electric motor is fixed to the maximum value, is selected to reliably change the intake valve phase by a required amount. Then, the intake valve phase comes close to the stop-time phase and the mode changeover condition is satisfied, the control mode is changed from the highest-speed mode to the normal mode to set the control phase to the stop-time phase with higher accuracy, and the feedback control over the intake valve phase is executed.

REFERENCES:
patent: 6311655 (2001-11-01), Simpson et al.
patent: 2003/0145815 (2003-08-01), Miyakoshi
patent: 2004/0107928 (2004-06-01), Asada et al.
patent: 2005/0081808 (2005-04-01), Tani et al.
patent: 2006/0102125 (2006-05-01), Mashiki
patent: 2007/0125332 (2007-06-01), Inoue et al.
patent: 59 113227 (1984-06-01), None
patent: 2003 328786 (2003-11-01), None
patent: 2004 156461 (2004-06-01), None
patent: 2004 156508 (2004-06-01), None
patent: 2004 190663 (2004-07-01), None
patent: 2005-233174 (2005-09-01), None
patent: 2006-144567 (2006-06-01), None
patent: 2007 154715 (2007-06-01), None
patent: 2007 142322 (2007-12-01), None
Japanese Office Action issued Sep. 21, 2010 in Japanese Patent Application No. 2006-232373 filed Aug. 29, 2006 with English translation.

Affiliated with

Also associated with

Rating

Variable valve timing system and method for controlling the... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable valve timing system and method for controlling the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable valve timing system and method for controlling the... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2649272