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Class 123/198F - Cylinder cut out


Subclass of Class 123 - Internal-combustion engines
No. of patents: 859
Last issue date: 12/20/2011


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NumberTitleIssue Date
8079342Method and device for controlling an internal combustion engine
A method and a device for controlling an internal combustion engine having a plurality of cylinders. A fuel metering system includes a fuel reservoir. A fuel level signal is provided which characterizes the fuel level of the fuel reservoir. When the fuel level signa...
12/20/2011
7963267Multi-stroke variable displacement engine
A vehicle propulsion system and method of operation are presented. As one example, cylinder deactivation and transitioning from four to two strokes is coordinated with transmission shifting to improve vehicle response. Additionally, it is possible to reduce transiti...
06/21/2011
7913662Engine with cylinder disabling mechanism
An engine includes engine valves disposed on intake and exhaust sides of a combustion chambers with a valve operating device for opening and closing the engine valves and an engine valve disabling mechanism for disabling opening and closing movement of the engine va...
03/29/2011
7882820Control apparatus of internal combustion engine and control method of internal combustion engine
A control apparatus of an internal combustion engine in which a plurality of cylinders is divided into a first cylinder group (1a) and a second cylinder group (1b), the internal combustion engine being able to be selectively switched betw...
02/08/2011
7757657Dual active fuel management sequencing
A system includes a cylinder selection module and a valve deactivation module. The cylinder selection module selects cylinders of an engine for active fuel management. The valve deactivation module deactivates intake valves of selected cylinders of the engine before...
07/20/2010
7743747Electrically actuated valve deactivation in response to vehicle electrical system conditions
A method for controlling at least valve to operate in at least a cylinder of an internal combustion engine coupled to a manifold, the method comprising of deactivating said valve in response to an operating condition of a vehicle electrical system, wherein during at...
06/29/2010
7685988Coupling device for split in-line engine
A coupling device for a split, in-line engine is provided. The coupling device may be configured to connect a first section of a crank shaft to a second section of the crank shaft of the engine. Further, the coupling device may be positioned at at least one main bea...
03/30/2010
7654242Multiple-cylinder engine for planing water vehicle
A multiple-cylinder engine for a planing water vehicle includes an operation control device which changes the number of deactivated cylinders step by step in response to an engine speed when the engine speed exceeds a preset speed. The operation control device can h...
02/02/2010
7631631Oil communication manifold for an internal combustion engine
A cylinder head assembly for an internal combustion engine is provided having a cylinder head adapted to contain at least one switchable valvetrain element operable to selectively deactivate at least one intake valve and at least one other switchable valvetrain elem...
12/15/2009
7628136Engine control with cylinder deactivation and variable valve timing
A valve control method for an internal combustion engine of a vehicle that uses cylinder deactivation. The method can adjust actuation phases of the engine's valves in an all-cylinder activation mode and a cylinder deactivation mode. The engine's valves may be contr...
12/08/2009
7621252Method to optimize fuel economy by preventing cylinder deactivation busyness
A method of transitioning an engine to a cylinder deactivation mode may include determining a ratio of time that the engine is operating in the cylinder deactivation mode for an engine operating condition relative to a total time of engine operation in the operating...
11/24/2009
7559309Method to start electromechanical valves on an internal combustion engine
A system and method to improve electromechanical valve control in an internal combustion engine. The method adjusts valve current to meet a wide range of engine operating conditions. ...
07/14/2009
7549406Engine shut-down for engine having adjustable valve timing
A method for discontinuing combustion in a cylinder of an internal combustion engine having an intake manifold and an emission control device coupled downstream of thereof, where the cylinder has at least one valve, the method comprising during a shut-down and after...
06/23/2009
7527032Method for controlling the operation of a cylinder for an internal combustion engine
The invention relates to a method for controlling the operation of a cylinder for a multi-cylinder four-stroke internal combustion engine, wherein said cylinder interacts with at least one fuel injector, an intake valve, an exhaust valve, operation members for contr...
05/05/2009
7516730Fuel pump control system for cylinder cut-off internal combustion engine
In a fuel pump control system for an internal combustion engine whose operation is switched between cut-off-cylinder operating mode during which some of the cylinders are non-operative and full-cylinder operating mode during which all of the cylinders are operative ...
04/14/2009
7469672System and method for operation of an engine having multiple combustion modes and cylinder deactivation
A method of operating an engine having a plurality of combustion cylinders configured to produce an engine output, including adjusting a condition of the engine to achieve combustion by each of spark ignition and homogeneous charge compression ignition, and varying ...
12/30/2008
7467614Pedal position and/or pedal change rate for use in control of an engine
Systems and methods for using pedal position and/or pedal change rate in the fuel side and/or air side control of an engine. By knowing the pedal position and/or pedal rate, an engine controller may anticipate future fuel and/or air needs of the engine, and adjust t...
12/23/2008
7438665Control system for internal combustion engine
A control system for an internal combustion engine having a plurality of cylinders and a switching mechanism for switching between an all-cylinder operation in which all of the plurality of cylinders are operated and a partial-cylinder operation in which at least on...
10/21/2008
7430854Air fuel ratio controller for internal combustion engine for stopping calculation of model parameters when engine is in lean operation
An air fuel ratio controller for an internal combustion engine includes an exhaust gas sensor, an identifier and a control unit. The exhaust gas sensor detects oxygen concentration of exhaust gas. The identifier calculates model parameters for a model of a controlle...
10/07/2008
7433774Control system for cylinder cut-off internal combustion engine
In a control system for an internal combustion engine having a plurality of cylinders and mounted on a vehicle, in which the engine operation is switched based on the throttle opening between a full-cylinder operation in which all of the cylinders are operative and ...
10/07/2008
7428893Electronic flow control valve
An internal combustion engine is provided that includes a high pressure feed line, and a plurality of fuel injectors fluidly connected to the high pressure feed line, each being operable to inject a fuel into the engine. The engine further includes an electronically...
09/30/2008
7426915System and method for reducing vehicle acceleration during engine transitions
A method for controlling an engine to reduce vehicle shuffle mode vibration during mode transition. The engine includes multiple cylinders, each with at least one electrically actuated valve, and the engine operates in a first mode having a first number of firing cy...
09/23/2008
7395792Deactivation roller hydraulic valve lifter
A deactivation valve lifter includes a lifter body. The lifter body has a first end configured for engaging a cam of an engine and at least one annular pin chamber. A pin housing includes a pin housing bottom. The pin housing bottom defines at least one pin stop ape...
07/08/2008
7395668Turbo charged diesel-type piston engine and method for controlling such an engine
A piston engine and a method for controlling a diesel-type piston engine including at least one combustion chamber formed by a cylinder, a movably arranged piston in each cylinder, which piston is connected to a crankshaft, an injection device designed to inject fue...
07/08/2008
7395813Method of controlling the intake and/or the exhaust of at least one deactivated cylinder of an internal-combustion engine
A method controls the intake and/or the exhaust of at least one deactivated cylinder (10, 12, 14, 16) of an internal-combustion engine operating in four phases. The cylinder includes an intake with an intake valve (28), an exhaust with an exhaust valve...
07/08/2008
7389762System and method for controlling valve actuators
A system for communicating information between a first controller and a second controller is presented. The system is designed to improve and increase the robustness data transferred between two controllers. ...
06/24/2008
7380535Method and device for operating an internal combustion engine having multiple cylinders
A method and a device for operating an internal combustion engine having multiple cylinders allows for an operating state of the internal combustion engine to be switched over as quickly as possible following the receipt of a switchover request. For this purpose, at...
06/03/2008
7377254Extending operating range of a homogeneous charge compression ignition engine via cylinder deactivation
An HCCI engine has the ability to operate over a large load range by utilizing a lower cetane distillate diesel fuel to increase ignition delay. This permits more stable operation at high loads by avoidance of premature combustion before top dead center. During low ...
05/27/2008
7377250System and method for balancing an engine during cylinder cutout
The method includes reducing output of one or more cylinders of an engine system without reducing output of the remaining cylinders of the engine system. The method also includes reducing imbalance of the engine system by supplementing the engine system with power i...
05/27/2008
7370845Throttle body for two-wheeled vehicle
To shorten a side mounting pitch of adjacent throttle bodies, in a multiple throttle body, thereby improving a mounting property to a two-wheeled vehicle, a discharge open hole (5) and a fuel spray escaping hole (7) are continuously provided toward a s...
05/13/2008
7367180System and method for controlling valve timing of an engine with cylinder deactivation
Various systems and methods are disclosed for carrying out combustion in a fuel-cut operation in some or all of the engine cylinders of a vehicle. Further, various subsystems are considered, such as fuel vapor purging, air-fuel ratio control, engine torque control, ...
05/06/2008
7363912Fuel injection controller for engine
A fuel injection controller calculates a difference between a rotation speed fluctuation amount of an engine in the case where an injection for learning is performed and the rotation speed fluctuation amount in the case where the injection for the learning is not pe...
04/29/2008
7363915Method to control transitions between modes of operation of an engine
A method is disclosed for controlling operation of an engine coupled to an exhaust treatment catalyst. Under predetermined conditions, the method operates an engine with a first group of cylinders combusting a lean air/fuel mixture and a second group of cylinders pu...
04/29/2008
7360356Exhaust gas purifying apparatus for internal combustion engine
A main control computer commands a second sub-control computer to perform a reduced-cylinder operation when the coolant temperature detected by a coolant temperature sensor is greater than or equal to a reference temperature, and the exhaust temperature detected by ...
04/22/2008
7357204Drive-control system of electromotive vehicle and drive-control-method of electromotive vehicle
A drive-control-system of electromotive vehicle and drive-control-method of an electromotive vehicle. A system has a condition-determination-process unit that reads a vibration index as a factor causing vibration in the vehicle-drive-system, and determines whether a...
04/15/2008
7357019Faulty lifter oil manifold assembly solenoid diagnostic system
A diagnostic system that detects a faulty lifter oil manifold assembly solenoid includes a current measurement module, a time delay module, a voltage measurement module, and a diagnostic module. The current measurement module measures current flowing through the sol...
04/15/2008
7353795Method for cylinder diagnostic test in an internal combustion engine
In a multi-cylinder piston engine, a diagnostic method of determining if there is low compression in a cylinder (5) by using a split engine brake (18) and turning the engine brake on during one cycle and the engine brake off during another cycle and me...
04/08/2008
7350499Control device of cylinder reducing operation of multi-cylinder engine
A control device for cylinder reducing operation of a multi-cylinder engine for a vehicle controls the number of working cylinders in the engine more appropriately for fuel economy while ensuring the operational stability of the engine and comfortable drivability of...
04/01/2008
7349791Control apparatus for internal combustion engine
An acceleration request is detected in accordance with an accelerator opening PA (time t3 in FIG. 5B). If the detected acceleration request is a moderate acceleration request, an idle opening TA0 is set as an actual throttle opening TA (FIG. ...
03/25/2008
7349789Method for controlling supply of fuel to a combustion engine
A method for controlling supply of fuel to a combustion engine, e.g. a self-igniting internal combustion engine in a vehicle, having a first group of cylinders and a second group of cylinders, the method comprising the steps of: determining if a demanded total fuel ...
03/25/2008
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