Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Transmission control
Reexamination Certificate
2006-08-08
2006-08-08
Yuen, Henry C. (Department: 3747)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Transmission control
C123S19800E, C123S481000, C123S493000, C123S592000, C477S111000, C701S055000, C701S117000
Reexamination Certificate
active
07089103
ABSTRACT:
In a system for controlling an internal combustion engine having a plurality of cylinders and connected to the automatic transmission and mounted on a vehicle and the operation of the engine is switched between full-cylinder operation during which all of the cylinders are operative and cutoff-cylinder operation during which some of the cylinders are non-operative, based on at least the load of the engine, a gradient of road on which the vehicle runs is estimated and the cutoff-cylinder operation is prohibited when the estimated gradient is equal to or greater than a threshold value. With this, it becomes possible to generate sufficient deceleration, when the vehicle runs a downhill during cutoff-cylinder operation, while ensuring to prevent the operator to feel excessive acceleration.
REFERENCES:
patent: 6988481 (2006-01-01), Sen et al.
patent: 05-071626 (1993-03-01), None
patent: 10-103097 (1998-04-01), None
patent: 10-141485 (1998-05-01), None
Katakura Takehiro
Kushiyama Hiroyuki
Nagayama Yoshiyuki
Nakajima Kenji
Nishio Shinichi
Harris Katrina B.
Lahive & Cockfield LLP
Laurentano, Esq. Anthony A.
Yuen Henry C.
LandOfFree
Control system for cylinder cutoff internal combustion 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 Control system for cylinder cutoff internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control system for cylinder cutoff internal combustion engine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3636182