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| Number | Title | Issue Date |
| 7874280 | Homogeneous charge compression ignition engine An HCCI engine provides a negative overlap period in an operation during HCCI combustion. During the negative overlap period, an intake valve and an exhaust valve are both closed when a piston is in the vicinity of the top dead center in an exhaust stroke, so that b... | 01/25/2011 |
| 7694663 | Method for controlling an internal combustion engine with the aim of reducing the pollutant emissions, engine operating according to this method, and motor vehicle equipped with said engine The invention concerns a method for controlling the operation of a cylinder assembly according to which the following phases are carried out during the same operating cycle: an exhaust opening phase (L1); a first inlet opening phase (L2) during... | 04/13/2010 |
| 7438045 | Method of operating an internal combustion engine In a method of operating an internal combustion engine with a switch-over capability between a compression ignition mode of operation and a spark ignition mode of operation in higher load ranges which includes a cam-operated valve drive with a valve control providin... | 10/21/2008 |
| 7392795 | Internal combustion engine and combustion control method An internal combustion engine is provided that basically comprises a combustion chamber, an electric discharge unit and a controller. The combustion chamber receives a mixture of fuel and air that is caused to undergo compression self ignition. The electric discharg... | 07/01/2008 |
| 7331328 | Control device of fuel system of internal combustion engine An engine control device executes a mechanism of controlling a fuel system during idling including the step of detecting an engine speed NE and an engine load, the step of determining whether fuel can be injected at normal feed pressure from an in-cylinder injector ... | 02/19/2008 |
| 7318413 | Control apparatus for internal combustion engine An engine ECU executes a program including the steps of: detecting an engine speed NE and an engine load (S100, S110); when determination is made of being in an idle region based on the engine speed NE and engine load (YES at S120), determining ... | 01/15/2008 |
| 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 |
| 7302928 | Control apparatus for internal combustion engine An engine ECU executes a program including the step of detecting an engine coolant temperature (THW), the step of selecting a map for a warm state as the map for calculating a fuel injection ratio (or a DI ratio) r when the engine coolant temperature (THW) is equal ... | 12/04/2007 |
| 7278396 | Method for controlling injection timing of an internal combustion engine A method to control injection timing for an internal combustion engine having a plurality of injectors in at least a cylinder, the method comprising of injecting a first fuel amount to at least a cylinder of an internal combustion engine from a first injector, injec... | 10/09/2007 |
| 7258104 | Method and apparatus for controlling operation of dual mode HCCI engines An intake and exhaust system for a dual mode HCCI engine, which provides superior intake temperature control and homogeneity for engine operation in SI and HCCI modes, as well as during transition between SI and HCCI modes and vice-versa. The system includes adjuste... | 08/21/2007 |
| 7237540 | Method of modifying exhaust valve timing to improve engine performance A method for actuating one or more exhaust valves in an internal combustion engine during positive power operation is disclosed. The expansion stroke of an engine cylinder is effectively lengthened and the exhaust stroke is effectively shortened by delaying the open... | 07/03/2007 |
| 7236869 | Blended torque estimation for automatic transmission systems A torque prediction module for an automatic transmission system includes a throttle-based torque prediction module. The throttle-based torque prediction module determines a first predicted torque of an engine in a vehicle that is based on a position of a throttle, a... | 06/26/2007 |
| 7207316 | Control apparatus and control method for internal combustion engine An internal combustion engine (1) generates power by burning a mixture of fuel and air in each combustion chamber 3. The internal combustion engine 1 is provided with an in-cylinder pressure sensor (15) disposed in each combustion chamber... | 04/24/2007 |
| 7201145 | Fuel supply apparatus for internal combustion engine In a fuel supply apparatus for an internal combustion engine including a first fuel injection valve for directly injecting a fuel into a cylinder and a second fuel injection valve for injecting the fuel into an intake manifold, production of deposits in the first fu... | 04/10/2007 |
| 7171950 | Method and device for determining the pressure in the combustion chamber of an internal combustion engine, in particular a spontaneous ignition engine, for controlling fuel injection in the engine A method is described for controlling fuel injection in an spontaneous ignition engine equipped with an electronically controlled fuel injection system and with an electronic control unit receiving engine quantities comprising the pressure in the combustion changer ... | 02/06/2007 |
| 7089909 | Choke valve provided with an integrated electromagnetic actuator for an intake manifold with a retracting tumble system A choke valve for an intake manifold with a retracting tumble system for an engine provided with a number of cylinders, the choke valve being adapted to vary the passage section of the air through an intake duct which connects each cylinder with the intake manifold ... | 08/15/2006 |
| 7056165 | Control system for outboard motor The control system establishes an engine warm-up protocol based, at least in part, on elapsed time from engine start. The control system provides a reduced reliance on engine temperature as a basis for determining an appropriate engine idle speed. The control system... | 06/06/2006 |
| 7051713 | Fuel injection control apparatus for internal combustion engine An electronic control apparatus adjusts the pressure such that the fuel supply pressure of a high-pressure fuel supply system is reduced when in a low load mode corresponding to a low required injection quantity. When the operating status of the engine is shifted fr... | 05/30/2006 |
| 7052597 | Tuning fuel composition for driving cycle conditions in spark ignition engines Tuning fuel composition delivered to a spark ignition, internal combustion engine as a function of driving cycle conditions results in improvements in one or more of fuel efficiency and combustion emissions. ... | 05/30/2006 |
| 7032381 | Direct-injection engine with turbocharger and method of controlling the same In a direction-injection engine incorporating a turbocharger, fuel combustion is improved to enhance fuel economy within the high-load range of engine torque, and furthermore to control occurrence of smoke in the range of great load within the lean-burn range. | 04/25/2006 |
| 7024851 | Direct fuel injection/spark ignition engine control device An engine control device is configured to perform optimum combustion control according to environmental conditions when warming up of a catalyst for emission purification is required. The engine control device performs stratified combustion by the compression stroke... | 04/11/2006 |
| 7013874 | Engine fuel injection apparatus To improve the maintenance and inspection of a fuel injection valve, as well working of the fuel piping and wiring to the fuel injection valve. An engine fuel injection apparatus includes an air chamber provided on an upstream end of an air intake passage of an engi... | 03/21/2006 |
| 7010417 | System and method for determining maximum available engine torque In one embodiment, a system for determining maximum available engine output torque includes an engine speed sensor and a control computer produce a fueling command for fueling an internal combustion engine. The computer is configured to produce a maximum available e... | 03/07/2006 |
| 7007669 | Distributed ignition method and apparatus for a combustion engine A method and apparatus for operating an internal combustion engine is provided. The method comprises the steps of introducing a primary fuel into a main combustion chamber of the engine, introducing a pilot fuel into the main combustion chamber of the engine, determ... | 03/07/2006 |
| 6988485 | Fuel injection control device for internal combustion engine An internal combustion engine (10) is provided with a port injector (28) and an in-cylinder injector (22). Before a port injection is started, the total amount of fuel to be injected is calculated (at an injection amount calculation timing). The... | 01/24/2006 |
| 6978762 | Control system for internal combustion engine In an internal combustion engine equipped with an injector for cylinder-inside injection to inject fuel into a cylinder and an injector for intake port injection to inject fuel into an intake port, both the injectors being switched for use depending upon operating c... | 12/27/2005 |
| 6978763 | Engine fuel injection device and engine fuel injection method A fuel injection device for an engine includes a direct injector and an intake passage injector. When the engine load is relatively low, a fuel pressure lowering procedure is executed for lowering the pressure of fuel supplied to the direct injector. An ECU sets a f... | 12/27/2005 |
| 6941906 | Crankcase scavenged internal combustion engine A crankcase scavenged internal combustion engine includes a cylinder and a piston reciprocating along the cylinder wall. At least one auxiliary duct is arranged with an auxiliary port in the cylinder wall. An inlet is divided into: a fuel inlet leading to a fuel por... | 09/13/2005 |
| 6915776 | Premixed charge compression ignition engine with optimal combustion control A premixed charge compression ignition engine, and a control system, is provided which effectively initiates combustion by compression ignition and maintains stable combustion while achieving extremely low nitrous oxide emissions, good overall efficiency and accepta... | 07/12/2005 |
| 6866024 | Engine control using torque estimation Torque estimation techniques in the real-time basis for engine control and diagnostics applications using the measurement of crankshaft speed variation are disclosed. Two different torque estimation approaches are disclosed—“Stochastic Analysis” and “Frequen... | 03/15/2005 |
| 6782869 | Fuel delivery system and method A fuel delivery system includes a drop ejector for discretely ejecting drops of combustible liquid in a digital manner. A controller is configured to cause the drop ejector to provide a first air/fuel mixture to a combustion chamber for a first portion of a fuel int... | 08/31/2004 |
| 6725649 | Control apparatus for a direct-injection, spark-ignition engine A control apparatus for a direct-injection, spark-ignition engine including a temperature-condition detector for detecting a temperature condition of the engine catalyst, and a controller for controlling a fuel-injection operation. The controller controls the fuel i... | 04/27/2004 |
| 6672052 | Exhaust gas purifying apparatus for internal combustion engine An exhaust gas purifying apparatus comprises a control unit (29) operative to estimate an amount of NOx absorbed by a NOx trap material (17) disposed in an exhaust passage (10) and to make an air-fuel ratio richer so as thereby to cause the NOx trap mater... | 01/06/2004 |
| 6668790 | Method of operating an internal combustion engine operated on gasoline type fuels The invention relates to a method of operating an internal combustion engine operated on gasoline type fuels, more specifically on gasoline, wherein ignition of the fuel-air mixture is initiated spontaneously in at least one operational range of the engin... | 12/30/2003 |
| 6659068 | Feedback control for auto-ignition two-stage combustion of gasoline in engine cylinder A split injection of gasoline produces stratified charge in at least one cylinder. A sensor measures cylinder pressure or knock and generates a sensor signal indicative of combustion event timing of stratified charge. From the sensor signal, a controller ... | 12/09/2003 |
| 6644019 | Combustion control apparatus for engine When an engine operates in a low and medium load area and in a low and medium speed area, the combustion mode is established to a compression ignition combustion and when the engine operates in other load and speed areas, the combustion mode is establishe... | 11/11/2003 |
| 6637393 | HCCI engine combustion control apparatus and method Compression ignition of a homogeneous air fuel charge in a piston engine is controlled over a substantial range of lean to stoichiometric air fuel ratios by supplying additional heat as required to an open sided hot spot recess in a combustion chamber. A ... | 10/28/2003 |
| 6588399 | Fuel injection method of internal combustion engine and fuel injection apparatus of internal combustion engine In a fuel injection apparatus of an internal combustion engine comprising a fuel injector, an intake valve device for opening and closing an intake port, and an intake air flow control device arranged in an upstream side of the intake valve device, a fuel... | 07/08/2003 |
| 6571551 | Heat exchanger for SOx or NOx regeneration of catalyst A device for use with a lean-burning internal combustion engine is disclosed. The device is comprised of a means for generating an air/fuel mixture for the cylinders of the engine in order to provide at least stratified and homogenous operation, an exhaus... | 06/03/2003 |
| 6508227 | Method of operating an internal combustion engine The invention is directed to an internal combustion engine (1) especially of a motor vehicle. The engine (1) includes a combustion chamber (4) wherein fuel can be injected during a compression phase in a stratified mode of operation. A control apparatus (... | 01/21/2003 |
