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| Number | Title | Issue Date |
| 8297258 | Method and device for operating an internal combustion engine A method for operating an internal combustion engine (2) having multiple cylinders (3); fuel may be injected into the multiple cylinders (3) via corresponding injectors, and air may be let in via corresponding intake valves (9) in order t... | 10/30/2012 |
| 8225771 | Control apparatus and control method for internal combustion engine In a startup operation of an internal combustion engine, the internal combustion engine is started by supplying fuel to only a first cylinder group formed of a portion of cylinders, from among a plurality of cylinders that make up the internal combustion engine, whe... | 07/24/2012 |
| 8205599 | System and method for cleaning solenoid valve debris An engine control system includes an active fuel management (AFM) control module that selectively enables and disables an AFM mode using at least one AFM valve. The engine control system further includes a solenoid fault correction module that selectively opens and ... | 06/26/2012 |
| 8096286 | Method of controlling internal combustion engine A method for controlling an internal combustion engine, in which a traveling with reduced cylinders is controlled according to the idle-speed after the engine starting, so as to restrain the discharge of white smokes at the time lag for temperature equilibration soo... | 01/17/2012 |
| 8025043 | Controller for internal combustion engine The engine operational region in which the cylinder deactivation operation is performed in the cylinder deactivation control is switched between the cylinder deactivation region AP1 and the cylinder deactivation region AP2 depending on whether a variab... | 09/27/2011 |
| 8006670 | Engine control with valve deactivation monitoring using exhaust pressure A system or method for controlling a multiple cylinder internal combustion engine operable in a reduced displacement mode with at least one valve or cylinder selectively deactivated include controlling the engine in response to detecting opening of an exhaust valve ... | 08/30/2011 |
| 7946275 | Extending variable displacement operation through spark knock control A control system comprising a spark knock detection module that detects a spark knock in an engine of a hybrid vehicle, and a torque control module that selectively regulates an engine torque output and an electric machine torque output based on the spark knock. A m... | 05/24/2011 |
| 7918210 | Method for determining valve degradation A method for determining degraded valve operation. According to the method, valve degradation can be determined from the duration of a spark event. This method allows for the determination of both intake and exhaust valve degradation. ... | 04/05/2011 |
| 7913668 | Engine output control system and method A method for a boosted engine including first and second injectors includes adjusting boost during a disabled condition of a first injector to compensate for lack of fuel injected from said first injector, said first injector supplying a fuel to a cylinder of said e... | 03/29/2011 |
| 7913669 | Method for controlling cylinder deactivation A method of controlling a cylinder deactivation system is disclosed. Information from one or more sensors is received by a control unit. The control unit compares the current values of a parameter with one or more prohibited ranges in order to determine if cylinder ... | 03/29/2011 |
| 7836866 | Method for controlling cylinder deactivation A method of controlling a cylinder deactivation system is disclosed. Information from one or more sensors is received by a control unit. The control unit compares the current values of a parameter with one or more prohibited ranges in order to determine if cylinder ... | 11/23/2010 |
| 7810473 | Control device and method for internal combustion engine This control device for an internal combustion engine includes a variable intake valve device and a variable exhaust valve device; and it performs fuel cut-off for a plurality of cylinders of the internal combustion engine. And it further includes: an intake valve c... | 10/12/2010 |
| 7762237 | Method for determining valve degradation A method for determining degraded valve operation. According to the method, valve degradation can be determined from the duration of a spark event. This method allows for the determination of both intake and exhaust valve degradation. ... | 07/27/2010 |
| 7757666 | Cylinder fueling coordination for torque estimation and control An engine control system comprises a torque control module and a fueling control module. The torque control module selectively generates a deactivation signal for a first cylinder of a plurality of cylinders of an engine based on a torque request. The fueling contro... | 07/20/2010 |
| 7757665 | Fuel-cut manifold absolute pressure control A method of regulating a throttle opening of an engine in a hybrid electric vehicle system includes initiating a fuel-cut off operating mode of the engine, monitoring an engine speed during said fuel cut-off operating mode and regulating the throttle opening based o... | 07/20/2010 |
| 7685998 | Method and device for operating an internal combustion engine A method and a device for operating an internal combustion engine, in particular of a motor vehicle, permitting optimal compensation of all losses of the internal combustion engine in half-engine operation. The internal combustion engine has several cylinder banks, ... | 03/30/2010 |
| 7610903 | Multicylinder internal combustion engine A multicylinder internal combustion engine, which can simplify its control and is advantageous against thermal loads or vibrations includes a cylinder head with intake valves and exhaust valves arranged therein. Valve actuators are provided for openably operating th... | 11/03/2009 |
| 7600503 | Flex-fuel variable displacement engine control system and method A method for operating an engine having at least one cylinder that may be deactivated and a fuel system operating with an alcohol fuel blend, comprising of adjusting a range of operating parameters in which the at least one cylinder is deactivated, where said range ... | 10/13/2009 |
| 7581531 | Method for operating an internal combustion engine An internal combustion engine includes multiple cylinders. A partial set of the cylinders may be temporarily shut off. Fuel is introduced briefly into at least one of the shut off cylinders and combusted in an at least essentially torque-neutral way during the cylin... | 09/01/2009 |
| 7565899 | Engine fueling control during cylinder valve mode transitions A method of control fueling of a cylinder in an internal combustion engine, the cylinder having at least two intake valves, the method comprising of operating in a first mode with one active intake valve and one inactive intake valve during a cycle of the cylinder o... | 07/28/2009 |
| 7549408 | Flex-fuel variable displacement engine control system and method A method for operating an engine having at least one cylinder that may be deactivated and a fuel system operating with an alcohol fuel blend, comprising of adjusting a range of operating parameters in which the at least one cylinder is deactivated, where said range ... | 06/23/2009 |
| 7478625 | Engine cranking system with cylinder deactivation for a direct injection engine An engine cranking system includes fuel injectors that are associated with multiple combustion chambers of an engine. The fuel injectors include a first fuel injector that is associated with a first combustion chamber. A second fuel injector is associated with a sec... | 01/20/2009 |
| 7430854 | Air 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 |
| 7428893 | Electronic 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 |
| 7426918 | Engine having multiple injector locations A method for controlling a first and second injector of an engine, the first injector located in a first cylinder of the engine and the second injector located upstream of, and configured to inject fuel into, the first and a second cylinder of the engine, the method... | 09/23/2008 |
| 7421836 | Air/fuel ratio validation for lean burn A multi-cylinder group engine system operable in at least a first mode and a second mode, where in the first mode a first and second cylinder group combust air and fuel, and where in the second mode at least one of the first and second cylinder group combusts air an... | 09/09/2008 |
| 7395813 | Method 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 |
| 7383813 | Method and device for controlling the transition between normal operation and overrun fuel cut-off operation of an Otto engine operated with direct fuel injection The problem during overrun fuel cut-off operations, i.e. cut-off of fuel injection during trailing throttle conditions of the vehicle, is that the transition entails an undue torque jump, resulting in the smooth operation of the engine and the driving comfort of the... | 06/10/2008 |
| 7380535 | Method 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 |
| 7367419 | Oxygen concentration sensor for a saddle ride type all-terrain vehicle A saddle ride type all-terrain vehicle includes an engine, a front wheel and rear wheels, a saddle type rider's seat, and a rear fender provided so as to cover the surroundings of the saddle type rider's seat and the rear wheels. The vehicle further includes an exha... | 05/06/2008 |
| 7367921 | Electromechanically actuated valve control for an internal combustion engine A system and method to control engine valve operation in an internal combustion engine. Valves are controlled to improve vehicle drivability and reduce vehicle noise. ... | 05/06/2008 |
| 7367322 | Controller of an internal combustion engine When the first fuel injection is performed after reversion from the fuel cut, the fuel pulse width Ka·INJ.PW is set so that a fuel supply amount is greatly increased in relation to an intake air amount, and the ignition timing is set to the first retarded ignition ... | 05/06/2008 |
| 7363915 | Method 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 |
| 7343902 | Dual combustion mode engine A system and method to provide a desired torque increase from an engine in which some cylinder operate in spark ignition (SI) combustion mode only and some cylinders operate in homogeneous-charge, compression-ignition (HCCI) combustion mode only are disclosed. Such ... | 03/18/2008 |
| 7341041 | Toroidal engine with variable displacement volume A novel rotary engine of the kind having a toroidal cylinder and a set of pistons on a rotating circular piston assembly provides instantaneous adjustment of the displacement volume of the engine by varying the intake and expansion stroke length on the circular path... | 03/11/2008 |
| 7331332 | Method for operating an internal combustion engine An internal combustion engine includes multiple combustion chambers. The supply of fuel into at least one subset of the combustion chambers can temporarily be interrupted. It is provided that the fuel be injected into the combustion chambers directly and during a sw... | 02/19/2008 |
| 7328686 | System and method to control cylinder activation and deactivation Engine cylinder reactivation from a fuel-cut state is controlled based on a calculated future engine speed and a minimum allowable engine speed. The future engine speed is calculated based on the current rate of change of engine speed and a duration required to reac... | 02/12/2008 |
| 7325528 | Method of operating a single cylinder two-stroke engine The invention is directed to a method for operating a two-stroke engine having a cylinder in which a combustion chamber is formed and which includes devices for metering fuel and supplying combustion air as well as an ignition device for igniting a mixture in the co... | 02/05/2008 |
| 7325534 | Supplemental internal air cooling of an internal combustion engine A method for providing supplemental internal air cooling to a multi-cylinder internal combustion engine. The method involves deactivating the fuel injector to one cylinder for a predetermined time period or temperature decrease, based upon engine operating condition... | 02/05/2008 |
| 7316219 | Control apparatus for vehicle In a vehicle incorporating an internal combustion engine having in-cylinder injectors and intake manifold injectors and performing engine intermittent operation control, at the end of vehicle operation, the fuel pressure is decreased in both a high-pressure delivery... | 01/08/2008 |
