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Internal-combustion Engines > Charge Forming Device (e.g., Pollution Control) > Fuel Injection System > Electrically Actuated Injector > Actuator Circuit (e.g., Engine Condition Responsive Electronic Circuit Actuates Injector Valve)

Actuator Circuit (e.g., Engine Condition Responsive Electronic Circuit Actuates Injector Valve)

Actuator Circuit (e.g., Engine Condition Responsive Electronic Circuit Actuates Injector Valve) patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

07/10/14 - 20140190453 - Method to detect partial failure of direct-injection boost voltage
A power supply diagnostic circuit includes a switching power supply that generates a voltage for powering a fuel injector. An injector control module selectively applies the voltage to the fuel injector and monitors a resultant electrical current flow through the fuel injector. The switching power supply includes a dual path...

07/03/14 - 20140182559 - Gaseous fuel system, direct injection gas engine system, and method
The disclosure describes an engine system having liquid and gaseous fuel systems, each of which injects fuel directly into an engine cylinder. A controller controls the pumping of a liquefied natural gas (LNG) in the gaseous fuel system using variable speeds for reciprocally moving a pumping piston of a pumping...

07/03/14 - 20140182560 - Variable speed dual fueled engine and electrical power management apparatus and methods
A fuel system is provided for use with a variable speed dual fuel engine. The fuel system comprises a first fuel injector configured for supplying diesel fuel to the engine, a second fuel injector configured for supplying natural gas to the engine, and a fuel controller configured to implement a...

06/26/14 - 20140174406 - Control system for an engine with egr flow
A system associated with an internal combustion engine is disclosed. The system may be configured to inject fuel at a current fuel injection flow rate and to direct exhaust at a current EGR flow rate. A controller may be configured to determine a maximum fuel injection flow rate and a...

05/15/14 - 20140130779 - Wideband oxygen sensing method and apparatus
A method of determining an air:fuel ratio based on information from an oxygen sensor exposed to exhaust gases of a combustion process, and related systems. A constant current is supplied to an oxygen sensor that has both an n-type sensing circuit and a p-type sensing circuit that share a common...

05/08/14 - 20140123954 - Fuel amount distribution method for engine with dual injector and apparatus therefor
It is possible to improve volatility of fuel in a fuel-gas mixture and improve the combustion performance of an engine by appropriately distributing the amount of fuel that is injected from two injectors disposed in two intake port, in a dual injector engine....

05/08/14 - 20140123955 - Fuel injection control system for internal combustion engine
A fuel injection control system for an internal combustion engine in which a driving signal for a high pressure fuel pump is calculated by using proportional plus integral control based on a difference between a delivery pressure of the high pressure fuel pump and a target pressure thereof. A delivery...

05/08/14 - 20140123956 - Control device for direct injection engine
The present invention provides a control device for a direct injection engine, capable of reducing the amount of fuel adhesion on a piston crown and a cylinder bore wall surface and improving homogeneity of a fuel-air mixture inside the cylinder, thereby reducing the particulate number of emitted PM. The fuel...

04/10/14 - 20140096746 - Actuator unit, in particular for injecting a fuel into a combustion chamber of an internal combustion engine
An actuator unit for injecting fuel into a combustion chamber of an internal combustion engine includes an electrically conductive excitation winding, a ferromagnetic circuit having a ferromagnetic return, and a moveable armature. The armature is held in an idle position by a holding force of a spring element. A current...

03/13/14 - 20140069389 - Fuel injection controller
A fuel injection controller is provided with a detection control portion which detects a valve-opening time. The detection control portion supplies the low valve-opening voltage to the fuel injector from a low voltage supply. An electric current flowing through a coil is gradually increased. When the fuel injector is fully...

03/13/14 - 20140069390 - Fuel injection controller
A fuel injection controller supplies a valve-opening voltage VF1 to a fuel injector. In order to obtain a small injection quantity, the controller terminates a supply of the valve-opening voltage before the fuel injector is fully opened. A bias-control portion supplies a bias voltage to the fuel injector instead of...

03/13/14 - 20140069391 - Fuel injection controller
A fuel injection controller has terminals which can be connected to the coil of the fuel injector. A first valve-open control portion supplies the valve-opening voltage to the terminals for opening the fuel injector. The first valve-open control portion stops supplying the electric supply to the coil before the fuel...

03/13/14 - 20140069392 - Strategy for fueling a diesel engine
A compression ignition engine (10) operates to fuel an engine cylinder (12) to create an in-cylinder air-fuel charge and to cause that charge to autoignite. A fuel injector (20) operates to inject fuel into the engine cylinder for substantially the entire duration of a first phase (24) of fuel injection...

03/13/14 - 20140069393 - Fuel injection apparatus for internal combustion engine
In a fuel injection apparatus for an internal combustion engine, capable of changing a pressure of fuel that is supplied to a fuel injection valve (21A), the fuel injection valve (21A) has an upper nozzle hole group (25U) including a plurality of nozzle holes (25u) and located on an upper...

03/06/14 - 20140060489 - Spark-ignition direct injection engine
A spark-ignition direct injection engine is provided. The engine includes an engine body, a fuel injection valve, a fuel pressure setting mechanism, an ignition plug, and a controller. The controller operates the engine to perform compression-ignition combustion within a first operating range, and controls the ignition plug to operate the...

03/06/14 - 20140060490 - Spark-ignition direct injection engine
A spark-ignition direct injection engine is provided. The engine includes an engine body, a fuel injection valve, a fuel pressure setting mechanism, an ignition plug, and a controller. Within a low engine speed operating range of a predetermined high engine load range, the fuel pressure setting mechanism sets a fuel...

03/06/14 - 20140060491 - Fuel injection control device for saddle-ride type vehicle
A fuel injection control device includes a throttle opening read timing setter that sets the timing at which a throttle opening is read. The setter is triggered to detect the throttle opening used for calculation of a basic injection amount by the start of calculation timing of the basic injection...

03/06/14 - 20140060492 - Method for modifying a vehicle to receive and utilize a secondary fuel
A method for modifying a vehicle to receive and utilize a secondary fuel is provided, as well as the modified vehicle. The vehicle prior to modification can use a primary fuel, and comprises signal transmitter for supplying a signal having a pulse width that varies to vary the quantity of...

03/06/14 - 20140060493 - Spark-ignition direct injection engine
A spark-ignition engine is provided. The engine includes an engine body, a fuel injection valve, an ignition plug, an EGR introduction system, and a controller for operating the engine body by controlling the fuel injection valve, the ignition plug, and the EGR introduction system. The controller controls to combust mixture...

03/06/14 - 20140060494 - On-vehicle compressed natural gas system with in-cabin display
A compressed natural gas (CNG) fueling system includes a CNG reservoir that can be mounted to a vehicle, a sensor arrangement that can sense an environmental condition in a vicinity of the vehicle and a condition associated with the reservoir, an electronically configurable display that can be mounted within a...

03/06/14 - 20140060495 - Method of compensating for injector aging
A method of controlling a fuel injector is provided. Engine speed is monitored. Engine torque output is monitored. It is determined if the engine speed is within one of a plurality of predefined engine speed ranges. It is determined if the engine torque output is within one of a plurality...

02/27/14 - 20140053813 - Control apparatus for internal combustion engine
A fuel injection valve (26) is provided which is capable of directly injecting fuel into a cylinder. If a target fuel injection amount is smaller than a minimum fuel injection amount that is minimum and is capable of injecting during one opening and closing operation of the fuel injection valve...

02/20/14 - 20140048045 - Injection timing
Various systems and methods for determining a start of fuel injection including a gaseous fuel in an internal combustion engine are provided. In one embodiment, an end of gas injection, a duration of gas injection, and a start of gas injection in an induction pipe of a cylinder of an...

02/20/14 - 20140048046 - Method and device for controlling pilot injection timing when abnormality occurs in combustion diagnosis signal relating to engine
The present invention includes: an injection timing correction unit 62 which repeatedly corrects a fuel injection timing in relation to a cylinder in which combustion is determined by a combustion diagnosis device 44 to be less than optimal such that a correction amount accumulates until combustion is determined to be...

02/20/14 - 20140048047 - Fuel supply control device and control method for engine
In an engine that includes a liquid fuel injector and a gaseous fuel injector connected to an intake pipe via a fuel passage and that switches fuel supplied into intake air between liquid fuel and gaseous fuel, an electronic control unit increases fuel in an amount required to fill the...

02/13/14 - 20140041637 - Control method for an internal combustion engine and internal combustion engine
The method for controlling the operation of an internal combustion engine comprises at least two operating modes. In a first operating mode, the intake valve is closed at a first predetermined crank angle, in accordance with the Miller cycle, before the piston reaches bottom dead center during the intake stroke...

02/06/14 - 20140034025 - Fuel injection control apparatus
In a fuel injection control apparatus, an injector is driven to open its valve by supplying a coil of the injector with a current during a high-level period of a power supply command signal outputted from a microcomputer. A valve-closing time of the injector is detected based on a coil...

01/30/14 - 20140026859 - Reactivity controlled compression ignition engine with exhaust gas recirculation
An internal combustion engine is configured to utilize a reactivity controlled compression ignition process and an exhaust gas recirculation (“EGR”) system. The EGR system directs a portion of the exhaust gasses from the exhaust system to the air intake system. The engine system is adapted to introduce a first fuel...

01/30/14 - 20140026860 - Apparatus and method for controlling internal-combustion engine
An apparatus and a method control an internal-combustion engine with a fuel injection valve for injecting fuel into an inlet port. In fuel injection control, injection field pressure at injection start timing is estimated from engine rotation speed and injection starting timing of the fuel injection valve. Since flow rate...

01/16/14 - 20140014069 - Fuel injection device
A fuel injection device is equipped with a fuel injection valve that is mounted in an engine body and injects fuel containing air bubbles, and void fraction adjustment means that changes a void fraction of the fuel that is to be injected from the fuel injection valve. The void ratio...

01/02/14 - 20140000566 - Injector nozzle coking compensation strategy
Systems and methods for compensating for nozzle coking in fuel injection system include creating expected fuel flow rate formula for selected fuel injection nozzle, operating selected fuel injection nozzle for a time, measuring fuel pressure and injector control valve on-time of fuel injection nozzle during operation, determining expected fuel flow...

12/26/13 - 20130340716 - Closed loop control fuel injection method
A closed loop control fuel injection method allows an injection amount and injection timing to be obtained, in such a way that an HRR (Heat Release Rate) is calculated from a combustion pressure signal of a combustion pressure sensor after a related pilot fuel amount is injected in a state...

12/26/13 - 20130340717 - Methods and systems for conversion of single-fuel engine to multiple-fuel engine with diesel oxidation catalyst
Engine conversion systems for converting an internal combustion engine from a single to a multiple-fuel engine are described. After engine conversion, an electronic control unit (ECU), can control amounts of a first fuel (for example, diesel) and amounts of a second fuel (for example, propane) that are provided to combustion...

12/26/13 - 20130340718 - Direct injection event-based engine starting
A method for starting an internal combustion engine having direct fuel injection, comprising of adjusting a number of direct injections per combustion cycle based on a cylinder event number from a first cylinder event....

12/26/13 - 20130340719 - Method for operating an injection system for an internal combustion engine
In a method for operating an injection system for an internal combustion engine having a combustion chamber, in a first method step, a first inlet valve to the combustion chamber is opened and fuel is injected into the combustion chamber through the open first inlet valve by a first injector,...

12/26/13 - 20130340720 - Fuel injection device
A fuel injection device is provided with a fuel injection valve to inject fuel into a combustion chamber of an engine, and an electronic control unit to operate the fuel injection valve to inject the fuel in multiple separate injections. The electronic control unit controls a timing of a first...

12/12/13 - 20130327299 - System for controlling combustion condition in vehicle engine
In a system, a fuel supply increasing unit increases, upon determination that abnormal combustion takes place in at least one cylinder, a quantity of fuel to be supplied into the at least one cylinder in comparison to a quantity of fuel to be supplied into the same cylinder in which...

12/12/13 - 20130327300 - Fuel pressure waveform acquisition device
A fuel injection system has a fuel injector and a fuel pressure sensor. An ECU acquires a pressure waveform detected by the fuel pressure sensor during performing a multi-stage injection as a detected waveform at the time of the multi-stage injection, memorizes a model waveform, which is used as a...

12/12/13 - 20130327301 - Injection device
An injection device for an internal combustion engine includes a piezo actuator for moving a valve piston, and a control unit for actuating the piezo actuator. The control unit supplies electrical pulses having different pulse energy to the piezo actuator and determines a return stroke between the piezo actuator and...

11/28/13 - 20130312708 - System for fuel injection control in an internal combustion engine
A system for fuel injection control in internal combustion engine is provided. Fuel is injected during exhaust stroke from a fuel injector for port injection upstream of an intake valve. In-cylinder temperature as the engine cylinder undergoes compression is predicted. Fuel is injected during intake stroke from the fuel injector...

11/28/13 - 20130312709 - Method for operating a fuel injection system of an internal combustion engine
A method for operating a fuel injection system of an internal combustion engine is described. The fuel injection system has an injector for metering fuel into a combustion chamber of the internal combustion engine. The injector has an actuator, a control valve and a nozzle needle. In the method, the...

11/21/13 - 20130306034 - Method and device for actuating an injector in a fuel injection system of an internal combustion engine
A device and a method for actuating an injector in a fuel-injection system of an internal combustion engine are described. Using a first calibration method and based on a control parameter, an injector parameter which characterizes the injection process is determined. Starting from this injector parameter, a first feature is...

11/14/13 - 20130298875 - Method for operating a motor vehicle
A method for operating a motor vehicle having a hybrid drive which includes an internal combustion engine having an injection system and an electric motor, in which in an operating situation, in which the motor vehicle is driven by the electric motor and the internal combustion engine is turned off,...

11/14/13 - 20130298876 - Heavy duty pressure injection time pressure fuel injection system
A fuel injection system that includes an electronic controller that senses engine speed, calculates energy required by an engine existing control unit based upon a signal sent to one or more diesel injection pressure and timing actuators and a plurality of gaseous fuel injectors that respond to commands from the...

11/14/13 - 20130298877 - Electronically controlled fuel injection valve
An electronically controlled fuel injection valve can independently control the time to inject fuel and the amount of fuel to be injected in response to a control signal sent from the operating condition of an engine unlike a traditional mechanical fuel injection valve, and employs a control method for fuel...

10/03/13 - 20130255640 - Fuel injection valve and fuel injection system
A fuel injection valve which has: swirl chambers each having an inner wall whose curvature is gradually increased from upstream to downstream along fuel flow; passages for swirling motion, the passages permitting introduction of fuel into the swirl chambers; fuel injection holes opening into the swirl chambers and including at...

09/19/13 - 20130239929 - Method for actuating a piezo injector of a fuel injection system
A method for actuating a piezoelectric actuator and a piezo injector of a fuel injection system having a nozzle needle which can be moved between the closed position and an open position by the piezoelectric actuator are disclosed. Current is applied to the piezoelectric actuator from a source for the...

09/12/13 - 20130233281 - Control device of diesel engine with turbocharger
A control device of a diesel engine is provided. The diesel engine includes an injector for injecting fuel into a cylinder, and a turbocharger for compressing intake air by using exhaust energy. The control device includes a calculating module for setting a basic injection timing determined according to an operating...

09/12/13 - 20130233282 - Method for operating an injection system
In a method for operating an injection system for a combustion engine, in an operating situation in which fuel is not requested by combustion engine, a valve is operated during at least one time interval in such a way that no fuel injection takes place, a valve element being moved...

08/29/13 - 20130220278 - Fuel gas supply method and supply unit for gas engine
In an gas engine provided with a gas supply pipe 35 branching into a supercharger-side gas supply pipe 33 and a cylinder-side gas supply pipe 37, a supercharger-side gas adjusting valve 43 and a cylinder-side gas adjusting valve 45 for controlling flow rates of passages, when gas concentration of the...

08/22/13 - 20130213362 - Fuel injection apparatus for internal combustion engine
The fuel injection apparatus includes: a fuel injector having a leading end portion that has an internal space in which fuel is accumulated and an injection port for injecting fuel; and an adsorbent disposed in the internal space, the adsorbent being capable of selectively adsorbing an alcohol component in a...