Internal-combustion engines – Starting device – Condition responsive control of starting device
Reexamination Certificate
2007-04-24
2007-04-24
Cronin, Stephen K. (Department: 3747)
Internal-combustion engines
Starting device
Condition responsive control of starting device
C123S1980DB
Reexamination Certificate
active
11356192
ABSTRACT:
An engine has variable-valve mechanisms. An engine control system has an engine control unit for executing automatic stop and start control. At an automatic-stop, the variable-valve mechanisms are controlled to obtain a valve operation characteristic suitable for a restart of the engine. When a catalyst is in an inactivated state, the variable-valve mechanisms are controlled to reduce the amount of residual gas leaking out from cylinders. At an automatic-start, the control of the variable-valve mechanism is prohibited and an intake air is adjusted by using a throttle valve. At an automatic-stop, the engine speed is abruptly reduced so that the engine speed passes through a resonant revolution speed area in a short period of time. When the voltage of a battery is low, the control of the variable-valve mechanism may be prohibited.
REFERENCES:
patent: 4009695 (1977-03-01), Ule
patent: 4466392 (1984-08-01), Uchida et al.
patent: 5349929 (1994-09-01), Shimizu et al.
patent: 6330870 (2001-12-01), Inoue et al.
patent: 1 039 103 (2000-03-01), None
patent: 06-081678 (1994-03-01), None
patent: 8-193531 (1996-07-01), None
patent: 10-047142 (1998-02-01), None
patent: 2000-034913 (2000-02-01), None
patent: 2000-213383 (2000-08-01), None
patent: 2000-320356 (2000-11-01), None
patent: 2001-041072 (2001-02-01), None
patent: 2001-221072 (2001-08-01), None
patent: 2001-221080 (2001-08-01), None
patent: 2001-304005 (2001-10-01), None
Castro Arnold
Cronin Stephen K.
DENSO Corporation
Nixon & Vanderhye P.C.
LandOfFree
Apparatus for controlling engine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for controlling engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for controlling engine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3772862