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7637250 Gasoline engine system using variable direct ethanol injection and engine shutdown  
Fuel management system for operation of a spark ignition gasoline engine. The system includes a gasoline engine powering the vehicle and a source of gasoline for introduction into the engine. A...
7630824 Fuel estimating device  
A requested injection time InjT necessary for a fuel injector to inject a fuel per one combustion cycle is computed in response to a position of an accelerator manipulated by a driver, an...
7621257 Engine valve operation  
Various approaches are described for operating an engine in a vehicle having variable valve operation for an intake and/or exhaust valve of the cylinder. In one example, a method comprises...
7610899 Control apparatus for internal combustion engine  
An engine ECU executes a program including the steps of: calculating a fuel injection ratio of an in-cylinder injector; calculating an amount of spark advance using a first map employed when the...
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...
7599787 Fuel injection control device for engine  
A fuel injection control device for an engine including a cylinder injector and an air intake passage injector is provided. The device changes a fuel injection style, from a compression stroke...
7594498 System and method for compensation of fuel injector limits  
A method for an engine configured to deliver an actively varying relative ratio of a first and second fuel via a delivery system having a first and second injector for a cylinder of the engine,...
7581528 Control strategy for engine employng multiple injection types  
A system for an engine, comprising a cylinder, a first injection subsystem for injecting a first substance into the cylinder, a second injection subsystem for injecting a second substance into the...
7578281 First and second spark plugs for improved combustion control  
A method of operating an internal combustion engine having at least one combustion chamber including a first spark plug and a second spark plug, wherein the first spark plug is configured to...
7546835 Fuel delivery system for multi-fuel engine  
A fuel delivery system for an internal combustion engine and a method of operating the fuel delivery system are provided. An example embodiment of the method includes: transferring at least some...
7536994 Internal combustion engine and fuel injection method in internal combustion engine  
An air-fuel ratio of an air-fuel mixture produced by fuel injected from a first injector into an intake port (or into a combustion chamber) is set in a range of 28 to 38. Therefore, when the...
7533651 System and method for reducing knock and preignition in an internal combustion engine  
A system for an engine of a vehicle, comprising of a combustion chamber located in the engine; a delivery system configured to deliver a fuel and a fluid to at least the combustion chamber in...
7500469 Control apparatus of vehicle  
A hybrid vehicle has, as its driving-force source, an internal combustion engine that includes an in-cylinder injector directly injecting fuel into a cylinder and an intake manifold injector...
7487766 Flexible fuel engines with exhaust gas recirculation for improved engine efficiency  
A method and system for use with flexible fuel engines capable of operating with arbitrary mixtures of gasoline and alternative fuel. The engine is equipped with an EGR loop and a control system,...
7484495 Homogeneous charge compression ignition internal combustion engine  
A homogeneous charge compression ignition internal combustion engine capable of reliably reducing flame noise at a time of high-load operation is provided. The engine includes an injector which...
7467617 Fuel injection apparatus and fuel injection control method for internal combustion engine  
A fuel injection apparatus and a fuel injection control method for an internal combustion engine which performs a direct injection operation for injecting fuel from an injector for cylinder...
7464686 Leak fuel collection apparatus of internal combustion engine  
A leak fuel collection apparatus of the internal combustion engine using leak oil collection pipe fuel is provided, by which the improvement in fuel consumption and exhaust emission can be achieved...
7461632 Method for operating an internal combustion engine  
A method for operating an internal combustion engine having a first fuel injection system for injecting fuel into a combustion chamber of a cylinder of the internal combustion engine, and having a...
7448981 Power output apparatus, vehicle equipped with power output apparatus, and control method of power output apparatus  
The drive control of the invention sets a rotation speed Ni for in-cylinder injection according to an operation curve used in operation of an engine with fuel injection from only in-cylinder fuel...
7444986 Dual fuel engine  
A dual fuel engine ( 2 ) is provided which is supplied with diesel fuel and at least one secondary fuel, such as LPG. The engine ( 2 ) has a plurality of cylinders ( 4, 6, 8, 10 ) in which pistons...
7444994 Control system for internal combustion engine  
In order that the acceleration mode hydrogen adding rate “RAcc” used during acceleration increases above the hydrogen adding base rate “RBase” predefined according to a particular operating...
7444987 Fuel management system for variable anti-knock agent octane enhancement of gasoline engines  
Fuel management system for efficient operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder of the engine. A fuel management...
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...
7424881 System and method for engine with fuel vapor purging  
A system for an engine of a vehicle traveling on the road, comprising of a first fuel injector coupled to a cylinder of the engine, a second fuel injector coupled to said cylinder of the engine, a...
7415966 Engine  
An engine includes an in-cylinder injector injecting fuel into a cylinder, a port injector injecting fuel into an intake manifold, and a valve-opening-characteristic changing mechanism changing at...
7412966 Engine output control system and method  
A system for an engine, comprising of a cylinder located in the engine; a first injector for injecting a first fuel into said cylinder; a second injector for injecting a second fuel into said...
7409926 Controlling engine operation with a first and second fuel  
A method of operating an internal combustion engine including at least a combustion chamber having a piston disposed therein, the method comprising during a first number of cycles after start-up of...
7395786 Warm up strategy for ethanol direct injection plus gasoline port fuel injection  
A system for an engine, comprising of a cylinder of the engine; a first injector configured to inject a first substance to said cylinder; a second injector configured to inject a second substance...
7389766 Fuel supply apparatus for internal combustion engine  
The engine ECU executes a program including the step of detecting an engine coolant temperature, the step of detecting an engine speed and an engine load, the step of estimating a temperature at a...
7377248 Engine starting control system of internal combustion engine  
In an engine starting control system of an internal combustion engine in which an eco-run control is performed, a combustion stroke that each cylinder reaches when the internal combustion engine...
7370609 Internal combustion engine system  
An internal combustion engine system uses a blended fuel of gasoline and ethanol, operates with high efficiency, and can inhibit nitrogen oxide and the like from being discharged. The internal...
7367317 Control apparatus for internal combustion engine  
An engine ECU executes a program including a step of sensing a coolant temperature TW of an engine, if a start request of the engine is sensed, a step of causing only an intake manifold injector to...
7357101 Engine system for multi-fluid operation  
A system for an engine, comprising of an injector coupled to the engine and configured to inject fuel to a cylinder of the engine; a first reservoir holding a first fluid containing at least a...
7357122 Internal combustion engine control apparatus  
An engine ECU executes a program including the steps of: detecting an engine speed NE, a throttle angle THA and an amount of intake air GA; estimating an amount of intake air GAINI from the engine...
7341043 Fuel supply system of internal combustion engine and internal combustion engine  
A fuel supply system according to the present invention includes a first delivery pipe for intake passage injection and a second delivery pipe for cylinder injection. The second delivery pipe is...
7334569 Control apparatus for internal combustion engine  
An air-fuel ratio feedback system is configured to calculate the deviation between a target air-fuel ratio and an air-fuel ratio sensor value, multiplying a proportional gain by the calculated...
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...
7328687 Fuel supply apparatus for internal combustion engine  
A fuel supply apparatus includes: a low-pressure fuel system applying pressure to a fuel in a fuel tank by using a first low-pressure pump and supplying the fuel to port fuel injection valves; a...
7318412 Control device for internal combustion engine  
An engine ECU executes a program including the steps of: starting an engine by transiently increasing an amount of fuel injection when a start request is detected; prohibiting calculation of a...
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 (S 100 , S 110 ); when determination is made of being in an idle region based on the engine...
7305939 Addition of flexible fuel engine control system  
The apparatus and method convert the fuel system of an internal combustion engine in a pre-existing (used) vehicle to operate on a mixture of fuels (like ethanol and gasoline) from a single fuel...
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...
7296558 Dual-injector fuel injection engine  
A dual-injector fuel injection engine includes a cylinder block, a cylinder head, an intake port, an intake manifold, a surge tank, an in-cylinder injector, an intake pipe injector, and first and...
7287492 System and method for engine fuel blend control  
A system for an engine, comprising of a cylinder located in the engine, a fuel delivery system for varying relative delivery amounts of a first and second injection type into said cylinder, and a...
7286924 Knocking determining apparatus of internal combustion engine  
A knocking determining apparatus of an internal combustion engine that includes an in-cylinder injector and an intake port injector and that determines knocking based on an output signal of a knock...
7281517 Internal combustion engine provided with double system of fuel injection  
A double system of fuel injection type internal combustion engine includes: a direct injection injector and a port fuel injection injector; a control unit for changing a fuel injection distribution...
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...
7275515 Control device for internal combustion engine  
An in-cylinder injector injects fuel to be sprayed in the form of an inverted letter V sandwiching a spark plug, as seen in a top view, and in a sector as seen in a side view. The sprayed fuel...
7273043 Control device of internal combustion engine  
When an injection sharing ratio r is neither 0 nor 1, an engine ECU executes a program including a step of calculating a purge reduction amount of an in-cylinder injector as fpg×r and calculating...
7269941 Fuel injection control apparatus and fuel injection control method for internal combustion engine  
An internal combustion engine includes an in-cylinder injection valve and an intake passage injection valve. A control apparatus of the engine determines whether the temperature of a component...
Matches 1 - 50 out of 140 1 2 3 >