Internal-combustion engines – Engine speed regulator – Open loop condition responsive
Reexamination Certificate
2005-12-19
2009-10-20
Cronin, Stephen K (Department: 3747)
Internal-combustion engines
Engine speed regulator
Open loop condition responsive
C123S396000, C700S079000, C701S114000, C701S107000
Reexamination Certificate
active
07603980
ABSTRACT:
An electronic throttle control apparatus includes first and second throttle position sensors that detect an opening of a throttle valve for adjusting an amount of supply air to an internal combustion engine, a throttle control unit that controls to drive the throttle valve, first and second accelerator position sensors that detect an operation amount of an accelerator pedal, and an ECU that calculates control parameters for the internal combustion engine on the basis of internal combustion engine operation information including an accelerator opening and a throttle opening and controls a throttle actuator such that a throttle opening position coincides with a target throttle opening position included in the control parameters. The ECU surely detects an abnormality in a sensor output due to contact failure or the like of the throttle position sensors and the accelerator position sensors. As a result, it is possible to provide an electronic throttle control apparatus that can prevent an unintended increase in the number of revolutions of the internal combustion engine, an engine trouble, and the like.
REFERENCES:
patent: 5260877 (1993-11-01), Drobny et al.
patent: 5394744 (1995-03-01), James et al.
patent: 6109239 (2000-08-01), Watanabe
patent: 6751544 (2004-06-01), Hashimoto et al.
patent: 6805094 (2004-10-01), Hashimoto et al.
patent: 2003/0183194 (2003-10-01), Noguchi
patent: 40 04 085 (1991-08-01), None
patent: 103 03 920 (2004-01-01), None
patent: 0 662 608 (1995-07-01), None
patent: 0 908 611 (1999-04-01), None
patent: 2000-130231 (2000-05-01), None
patent: 2001-303976 (2001-10-01), None
German Office Action dated Jan. 30, 2008.
Japanese Office Action dated Mar. 11, 2008.
Cronin Stephen K
Hufty J. Page
Mitsubishi Denki & Kabushiki Kaisha
Sughrue & Mion, PLLC
LandOfFree
Sensor abnormality detecting method and electronic throttle... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sensor abnormality detecting method and electronic throttle..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sensor abnormality detecting method and electronic throttle... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4072554