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Controlling timing

Subclass of:

701 - Data processing: vehicles, navigation, and relative location

701001000 - VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION

701099000 - With indicator or control of power plant (e.g., performance)

701101000 - Internal-combustion engine

701102000 - Digital or programmed data processor

701103000 - Control of air/fuel ratio or fuel injection

Patent class list (only not empty are listed)

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Entries
DocumentTitleDate
20110208408ADAPTIVE DIESEL ENGINE CONTROL FOR CETANE VARIATIONS - A method and system for adaptively controlling a diesel engine to account for variations in the cetane number of the diesel fuel being used. An engine controller includes various control modules with algorithms for estimating the fuel cetane number, or determining the ignition delay that the engine is experiencing, or both. With this information, the controller can adjust the amount of exhaust gas recirculation that is used, thus varying the amount of oxygen that is available in the intake charge to burn the fuel. The controller can also adjust the timing of the fuel injection event, as another way of altering the nature of combustion. Using these techniques, the controller can optimize the engine operation based on the fuel currently being used.08-25-2011
20120173126CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - A control system of an internal combustion engine is provided with an air flowmeter which is arranged in an engine intake passage, has a transition period from the initial operating state to the end operating state for obtaining the output value of the air flowmeter in the period from the time of startup of the internal combustion engine to when the warmup operation ends, calculates the cumulative air amount in the transition period from the detected output value of the air flowmeter, and uses the calculated cumulative air amount and the reference intake air amount corresponding to the transition period as the basis to correct the output value of the air flowmeter.07-05-2012
20090192697ENGINE CONTROL SYSTEM AND VEHICLE INCLUDING THE SAME - A control system for an engine includes a regulator with an output waveform which includes a plurality of waves, each wave having a peak portion, a first portion located on a front side of the peak portion, and a second portion located on the other side of the peak portion, the second portion exhibiting a more rapid change in voltage than the first portion. An ECU is configured to turn on a fuel injector of the engine at a first timing and turn off an ignition plug of the engine at a second timing, the first and second timings corresponding to a shift in waveform output from the peak portion toward the first portion of a first wave and a second wave, respectively. The waveform shift corresponds to a predetermined angular shift in the rotational position of a crankshaft of the motorcycle engine of preferably about 3°.07-30-2009
20130035841METHOD AND SYSTEM FOR PRE-IGNITION CONTROL - Methods are provided for controlling an engine in response to a pre-ignition event. A pre-ignition threshold and a pre-ignition mitigating action are adjusted based on a rate of change of cylinder aircharge. As a result, pre-ignition events occurring during transient engine operating conditions are detected and addressed different from pre-ignition events occurring during steady-state engine operating conditions.02-07-2013
20100042309METHOD FOR CONTROLLING A FUEL INJECTOR OF A DIESEL ENGINE - A method for controlling a fuel injector of a diesel engine having a predefined control time from a control start, in which a setpoint value of a combustion start of a combustion chamber charge of the diesel engine is ascertained. The method is characterized in that an ignition delay between the control start and the combustion start is estimated from performance parameters of the diesel engine using a computing model, and the control start is formed on the basis of the setpoint value of the combustion start and the estimated ignition delay. A control unit controls the sequence of the method.02-18-2010
20090157281METHOD FOR CONTROLLING CONTINUOUS VARIABLE VALVE TIMING APPARATUS - A method for controlling a continuous variable valve timing apparatus that can control a phase angle of a camshaft quickly and precisely according to an exemplary embodiment of the present invention may include: calculating a difference between a target phase angle and a current phase angle of a camshaft; determining whether the difference between the target phase angle and the current phase angle of the camshaft is larger than or equal to a predetermined value; calculating a base torque T06-18-2009
20120185157APPARATUS FOR DETECTING AIR-FUEL RATIO DISPERSION ABNORMALITY BETWEEN CYLINDERS OF MULTIPLE-CYLINDER INTERNAL COMBUSTION ENGINE - An apparatus for detecting dispersion abnormality in air-fuel ratio between cylinders of a multiple-cylinder engine, including a waste gate passage (07-19-2012
20090125215VARIABLE VALVE TIMING CONTROL SYSTEM AND METHOD - An engine control system is provided for an internal combustion system having variable valve timing operated by at least one variable valve actuator. The engine control system is operable to calculate fuel injection amounts based on predicted volumetric efficiency and to delay a control signal for initiation of the variable valve actuator by a control delay timing. An embodiment can provide compensation for fuel amounts injected despite rapid variable valve actuation.05-14-2009
20120191328DIRECT 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.07-26-2012
20120191326Control Device for Internal Combustion Engine and Internal Combustion Engine - A control device for an internal combustion engine that is capable of easily switching between a stratified operation mode and a non-stratified operation mode is provided for a port injection spark ignition internal combustion engine. Injection directions in which sprayed fuel is injected from a fuel injection valve are defined nearer the center of a cylinder than the centers of two intake valves. Injection timing of the fuel injection valve is controlled by the stratified operation mode completing the fuel injection in the exhaust stroke, and the non-stratified operation mode completing the fuel injection in a range from a compression stroke to the exhaust stroke. The injection end timing of the fuel injection valve in the stratified operation mode is retarded from the injection end timing in the non-stratified operation mode, in which the fuel injection time is equal to or shorter than that in the stratified operation mode.07-26-2012
20090093950Approach for Improved Fuel Vaporization in a Directly Injected Internal Combustion Engine - A system and a method of facilitating fuel vaporization in a directly injected internal combustion engine are provided. As one example, the method comprises: closing an exhaust valve of the cylinder; opening an intake valve after the exhaust valve has closed; moving a piston of the cylinder away from top dead center between the closing of the exhaust valve and the opening of the intake valve to expand the cylinder volume and reduce a pressure within the cylinder to below a pressure of an air intake manifold of the cylinder; and initiating an injection of fuel directly into the cylinder via an in-cylinder injector after the exhaust valve has closed.04-09-2009
20130073188Determining the Closing Point in Time of an Injection Valve on the Basis of an Analysis of the Actuation Voltage Using an Adapted Reference Voltage Signal - A method for determining a closing time of a valve having a coil drive may include switching off a current flow through a coil of the coil drive so that the coil is depowered, measuring a time curve of a voltage induced in the non-powered coil, wherein the induced voltage is generated at least partially by a motion of the armature relative to the coil, evaluating the measured time curve of the voltage induced in the coil, wherein the evaluation comprises comparing the measured time curve of the voltage induced in the depowered coil to a reference voltage curve stored in an engine controller, and determining the closing time based on the evaluated time curve. The reference voltage curve is thereby adapted to current operating conditions of the valve. A corresponding device and computer program for determining the closing time of a valve comprising a coil drive are also disclosed.03-21-2013
20130060452CONTROL APPARATUS AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE - Control apparatus and method for internal combustion engine includes a fuel injection valve that injects fuel into an intake pipe at the upstream side of intake valves. When a deposition amount VDEPO of the intake valves is estimated, and becomes greater than a second threshold value SL03-07-2013
20130066538ADAPTIVE IDLE STROKE COMPENSATION FOR FUEL INJECTION VALVES - A method is provided for operating an internal combustion engine having an injection system comprising at least one injector indirectly driven by means of an actuator, and a high pressure accumulator. According to the method, the actuator of the at least one injector has electrical test pulses of iteratively increasing energy continuously applied thereto, and the idle stroke of the actuator is continuously determined by hydraulic and/or electric means. Upon detecting a change in the idle stroke, a corresponding correction of the injection time of the injector is carried out.03-14-2013
20100121557DIESEL ENGINE HAVING A SYSTEM FOR VARIABLE CONTROL OF THE INTAKE VALVES AND INTERNAL EXHAUST-GAS RECIRCULATION - A supercharged diesel engine is equipped with an electronically controlled hydraulic system for variable actuation of the intake valves of the engine. The cam that controls each intake valve has an additional lobe for causing an additional opening of the intake valve, during the exhaust stroke, so as to provide an exhaust-gas recirculation directly inside the engine. Said additional lobe is shaped in such a way as to give rise to a profile of the additional lift of the valve as the crank angle varies with a boot conformation, including an initial stretch with a gentler slope extending from a point of zero lift corresponding to the expansion stroke in the engine cylinder. The engine is moreover equipped with a duct for exhaust-gas recirculation of the long-route type, which picks up the gases from a point of the exhaust duct set downstream of the catalytic converter and of the particulate trap.05-13-2010
20090012700Spark Ignition Type Internal Combustion Engine - An engine provided with a variable timing mechanism (B) able to control a closing timing of an intake valve (01-08-2009
20090012699Method for Operating a Two-Stroke Engine - A two-stroke engine has a cylinder with a combustion chamber delimited by a reciprocating piston, wherein the piston drives in rotation a crankshaft, and wherein a spark plug projects into the combustion chamber and ignites a fuel/air mixture. The two-stroke engine further has devices for supplying fuel and combustion air to the combustion chamber and a control unit that determines the ignition timing based on an ignition map. The ignition map indicates the ignition timing as a function of the engine speed for at least one first and one second operating states and for at least one first and one second engine speed ranges. The engine is controlled in that for an engine cycle the ignition timing is set in the second operating state at least within the first engine speed range based on the engine speed and on the number of engine cycles since the last combustion.01-08-2009
20100088010METHOD AND CONTROL SYSTEM FOR CONTROLLING AN ENGINE FUNCTION BASED ON CRAKSHAFT ACCELERATION - A method and control system for controlling an engine includes an instantaneous crankshaft acceleration determining module determining an instantaneous crankshaft acceleration. An engine parameter adjustment module adjusts an engine parameter in response to the instantaneous crankshaft acceleration.04-08-2010
20110077843METHOD FOR THE INJECTOR-INDIVIDUAL ADAPTION OF THE INJECTION TIME OF MOTOR VEHICLES - A method for the injector-individual adaption of the injection time of motor vehicles is based on linking the IIC method and the MFMA method. Before starting to drive, the IIC method is carried out, and while driving MFMA measurements are carried out. The measurement points obtained are used as subsequent measurement points for the IIC function. Thus injector-individual characteristic fields can be determined, in which deviations due to manufacturing and also aging and wear of the components during the service life are considered.03-31-2011
20100268444CONTROLLER FOR DIESEL ENGINE AND METHOD OF CONTROLLING DIESEL ENGINE - An electronic controller for a diesel engine (10-21-2010
20080270009Method and System for Fuel Injection Simulation - A pulse width signal modifier comprises a fuel injector monitor in communication with an engine fuel injector. A signal modifier is configured to modify a 25% greater pulse width signal output to the fuel injector, wherein the modified pulse width signal is optimized for an E85 fuel blend. The fuel injector monitor is configured to monitor the engine fuel injector for a fault condition and communicate the fault condition to a fuel injector10-30-2008
20110301828CONTROL APPARATUS AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE - In a control apparatus, when an engine is cranked, “an air-fuel mixture (an air-fuel mixture used for determination of fuel property) including fuel in a first predetermined fuel amount TAUm and air in a first predetermined air amount Mcm”, which generates torque that does not make the engine autonomously operate, is formed in a first cylinder (cylinder used for determination of the fuel property), and the air-fuel mixture is ignited and combusted by a spark at an ignition timing after a compression top dead center. Further, the control apparatus determines “an amount of heat generated per unit mass of the fuel” when the air-fuel mixture is combusted in the first cylinder, and determines a property of the fuel based on the amount of generated heat.12-08-2011
20110288749COMBUSTION CONTROL SYSTEMS AND METHODS - A combustion control system for a direct injection engine includes a mean effective pressure (MEP) determination module, a coefficient of variation (COV) determination module, a spark timing module, and a fuel control module. The MEP determination module determines a MEP for a first combustion event of a cylinder based on cylinder pressure measured by a cylinder pressure sensor during the first combustion event. The COV determination module determines a COV for the cylinder based on the MEP. The spark timing module selectively sets a spark timing for a second combustion event of the cylinder based on the COV. The second combustion event is after the first combustion event. The fuel control module that selectively provides fuel for the second combustion event based on the COV.11-24-2011
20120191327METHOD AND CONTROL TOOL FOR OPERATING A VALVE - A method for operating a valve actuated by way of an actuator, in particular a fuel injection valve of an internal combustion engine of a motor vehicle, in which a first delay time is identified, which time characterizes a time difference between a point in time of a first change in an energization signal for the actuator and a point in time of a first change in the operating state of the valve corresponding to the first change in the energization signal. According to the present invention, from the first delay time at least one second delay time of the valve is inferred, which latter time characterizes a time difference between a point in time of a second change, different from the first change, in the energization signal and a point in time of a second change in the operating state of the valve corresponding to the second change in the energization signal.07-26-2012
20120016572METHOD FOR PERFORMING A NUMBER OF INJECTIONS - In a method for carrying out a number of injections for at least one cylinder of an internal combustion engine, a reference point in time for a control application onset of an injection is ascertained for the at least one cylinder, and a target point in time for the control application onset is determined from the reference point in time plus a delay time.01-19-2012
20090177368Method for optimizing fuel injection timing in a compression ignition engine - A method for determining the optimum fuel injection timing angle in a CI engine provided with means disposed in one or more cylinders for measuring Indicated Mean Effective Pressure. The pressure level during the power stroke of a piston is a direct correlate of engine torque being generated, and the timing of fuel injection can increase or decrease the amount of torque. Thus, maximum torque can be obtained by optimizing the timing of fuel injection. An algorithm in the ECM varies the timing of fuel injection in a narrow range until a IMEP maximum is achieved, which timing is then retained and employed until the engine operating conditions change. Thus, the invention can optimize fuel economy by optimizing the torque obtained from each injection of fuel into the cylinders.07-09-2009
20110276255METHOD OF MULTIPLE INJECTION TIMING CONTROL - A method for adjusting fuel injection timing in an internal combustion engine including a cylinder and configured to operate multiple fuel injections in the cylinder per combustion cycle includes monitoring in-cylinder pressure through a first combustion cycle, determining actual combustion phasing metrics based upon the in-cylinder pressure, monitoring a baseline fuel injection timing comprising a first injection timing and a second injection timing, providing expected combustion phasing metrics based upon the baseline fuel injection timing, comparing the actual combustion phasing metrics to the expected combustion phasing metrics, and adjusting the baseline fuel injection timing in a second combustion cycle based upon the comparing.11-10-2011
20100036589POWER OUTPUT APPARATUS, INTERNAL COMBUSTION ENGINE SYSTEM, AND CONTROL METHODS THEREOF - On the occasion of a cutoff of fuel supply to an engine in an accelerator-off state, the invention expands a throttle opening over a specific throttle opening set in the state of idling of the engine at the reference rotation speed. On resumption of fuel injection to the engine, the invention reduces the throttle opening to the specific throttle opening set in the state of idling of the engine at the reference rotation speed. Under no control of lowering the rotation speed of the engine by a motor or under the condition of low vehicle speed with control of lowering the rotation speed of the engine by the motor, the invention resumes fuel injection to the engine resumed with setting of a smaller correction amount to a fuel increase correction amount.02-11-2010
20100114458CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - The present application relates to a control apparatus for an internal combustion engine. It is an object of the present application to prevent an excessive reaction of a throttle valve when the opening of the throttle valve is controlled on the basis of a plurality of required torques. The control apparatus includes: required torque consolidation means for calculating an after-consolidation required torque first torque control means which causes an actual torque to follow variation of the after-consolidation required torque by changing the opening of the throttle valve in accordance with the variation of the after-consolidation required torque; and second torque control means which fixes the opening of the throttle valve and causes the actual torque to follow variation of the after-consolidation required torque.05-06-2010
20090150055VARIABLE ACTIVE FUEL MANAGEMENT DELAY WITH HYBRID START-STOP - A control system for a hybrid vehicle including an engine with cylinder deactivation comprises an engine time off module that determines an engine time off value. A re-purge determining module estimates a re-purge time required to purge a hydraulic control system of the engine of air before initiating cylinder deactivation. The re-purge time is estimated based on the engine time off value and an engine temperature.06-11-2009
20090312937Method for controlling and diagnosing a vane-type cam phaser having intermediate position pin locking - An improved control and diagnostic algorithm for coordinating the operation and checking reliability of oil control valves for a vane-type camshaft phaser in an internal combustion engine. A first oil control valve governs the rotational position of the phaser rotor within the stator, and a second oil control valve controls the locking and unlocking of a locking pin operable between the rotor and the stator. The algorithm determines when a change is needed in the position of the locking pin, commands the rotor to a predetermined angular position to permit the position change to be carried out, determines whether the commanded change was carried out successfully, and reports instances wherein the commanded locking pin position change was unsuccessful.12-17-2009
20120239278METHOD AND CONTROL UNIT FOR OPERATING A VALVE - A method for operating a valve actuated with the aid of an actuator, in particular, an injection valve of an internal combustion engine of a motor vehicle, where the actuator is activated using an activation signal characterizing a desired opening duration of the valve. The activation signal characterizing the desired opening duration is corrected as a function of a valve delay time, in order to obtain a corrected activation signal for activating the actuator; the valve delay time representing a temporal deviation between the activation signal and an actual change of an operating state of at least one component of the valve, in particular, of the valve element of an electromagnetic actuator, or of a valve needle.09-20-2012
20120109501VEHICLE LAUNCH ANTICIPATION - Turbo lag is a known impediment of a turbocharged, small displacement engine providing the feel of a large displacement engine. A method of spinning up the exhaust turbine during an interval between the time that the operator moves his/her foot from the brake pedal to the accelerator pedal to initiate a launch. A non-exhaustive list of actions that can be taken to increase exhaust enthalpy provided to the turbine include: opening the throttle, retarding the spark, and closing the wastegate. Additionally, a brake can be applied at one of the vehicle wheels to keep the engine from launching forward during this interval.05-03-2012
20090287397PARALLEL SEQUENTIAL TURBOCHARGER ARCHITECTURE USING ENGINE CYLINDER VARIABLE VALVE LIFT SYSTEM - An exemplary controller includes one or more processors, memory and control logic to individually control at least one of two exhaust valves of a cylinder of an internal combustion engine to either provide exhaust from the cylinder to a single exhaust turbine or to provide exhaust from the cylinder to two exhaust turbines where the two exhaust valves are mounted in a cylinder head of the internal combustion engine. For example, such a controller may call for operation of one exhaust valve to provide exhaust to a single exhaust turbine and call for operation of two exhaust valves to provide exhaust to two exhaust turbines. Various other exemplary methods, devices, systems, etc., are also disclosed.11-19-2009
20090055084FUEL INJECTION CONTROL DEVICE - A fuel injection control device (ECU) for controlling injection supply of fuel to a target engine includes a program for sequentially sensing fuel pressure fluctuating with injection of a predetermined injector of each cylinder of a multi-cylinder engine based on an output of a fuel pressure sensor, a program for detecting a diagram as a profile of a transition of a fuel quantity injected from the injector per unit time (i.e., an injection rate) at a present time based on the sequentially sensed fuel pressure transition, and a program for varying an injection command to the injector based on the diagram that is the profile of the injection rate transition and that is detected by the latter program and a predetermined basic diagram such that the diagram as the actual profile of the injection rate transition belongs to the basic diagram.02-26-2009
20120271533SPARK-IGNITION ENGINE AND METHOD OF CONTROLLING THE SPARK-IGNITION ENGINE - A method of controlling a spark-ignition engine including an ignition plug for spark-igniting mixture gas inside a cylinder in an engine body, and an effective compression ratio changing module for changing an effective compression ratio of the engine body is provided. The method includes estimating, based on engine speed, engine load, and environmental conditions, a limit effective compression ratio serving as a maximum effective compression ratio where pre-ignition does not occur, calculating a current effective compression ratio, calculating a value obtained by subtracting the effective compression ratio from the limit effective compression ratio, as a margin before pre-ignition occurs, and decreasing, when the margin is below a predetermined minimum margin, the effective compression ratio of the engine body by using the effective compression ratio changing module so that the margin is increased to be above the minimum margin, which is set constant regardless of at least environmental conditions.10-25-2012
20090093949Staggered Intake Valve Opening with Bifurcated Port to Eliminate Hydrogen Intake Backfire - A method is described for operating a gaseous fueled engine, where gaseous fuel and intake air are delivered to a first intake port of a cylinder of the engine and intake air without gaseous fuel is delivered to a second intake port of the cylinder, the first port separated from the second port. Further, the method includes inducting the fuel and intake air from the first port via a first intake valve, and the intake air from the second port via a second intake valve, into the cylinder, where the first intake valve is opened after the second intake valve.04-09-2009
20090088955APPARATUS FOR AND METHOD OF CONTROLLING VARIABLE VALVE MECHANISM - The present invention provides an apparatus for and method of diagnosing whether or not a failure occurs in a variable valve mechanism on the basis of a manipulated variable of an electric actuator. The variable valve mechanism is operated by the electric actuator and varies an open characteristic of an engine valve. The time for determining occurrence of a failure in the electric actuator is changed according to a temperature condition.04-02-2009
20090088954APPARATUS FOR AND METHOD OF CONTROLLING VARIABLE VALVE MECHANISM - An apparatus for and method of controlling a variable valve mechanism capable of continuously varying an effective opening of an intake valve by driving of an actuator, and also, is provided with a default mechanism which mechanically holds the intake valve at a default opening set to be larger than a minimum effective opening when the driving of the actuator is stopped, while the intake valve is being held at the default opening by the default mechanism, the effective opening of the intake valve is detected, the default opening is detected based on the detected effective opening to thereby learning the default opening, so that a direction of supply of a driving force by the actuator is switched between an increase-direction causing an increase in the effective opening and a decrease-direction causing a decrease therein, from the detected or learned default opening.04-02-2009
20080208438Control Method of Direct Injection Engine, Controller for Implementing the Control method, and Control Circuit Device Used for the Controller - An object of the present invention is to provide a fuel injection control technique which maximizes engine power according to fuel evaporation characteristics. The fuel injection timing in the intake stroke is delayed according as a physical quantity affecting the fuel evaporation time changes such that the fuel evaporation time decreases. Further, the fuel injection timing when a physical quantity affecting the fuel evaporation time is such that the fuel evaporation time decreases is set closer to the end of the intake stroke than the fuel injection timing when the physical quantity is such that the fuel evaporation time increases. The fuel injection timing is controlled so as to maximize engine power according to fuel evaporation times.08-28-2008
20090276146METHOD FOR THE INDIVIDUAL CONTROL OF A SET OF VALVE ACTUATORS BY THE ECU - The invention relates to a system for controlling a thermal engine with valves, that comprises an engine control unit (11-05-2009
20090299609LOCOMOTIVE ENGINE MULTI-FUEL CONTROL SYSTEM AND METHOD - A method, in certain embodiments, includes controlling a first parameter set (e.g., fuel injection timing, engine speed, etc.) of an engine to reduce specific fuel consumption to account for a plurality of different fuels alone or in combination with one another. The method also may include controlling a second parameter set (e.g., engine duration, engine speed, manifold air pressure, fuel supply temperature, fuel supply pressure, etc.) of the engine to reduce the possibility of exceeding design limits associated with the engine to account for the plurality of different fuels alone or in combination with one another.12-03-2009
20090299610CONTROL APPARATUS OF SPARK IGNITION INTERNAL COMBUSTION ENGINE - In an in-cylinder injection type spark ignition internal combustion engine in which the intake air amount is controlled by use of an intake valve or an exhaust valve, which is provided with mainly a variable valve mechanism, instable combustion during a low-load operation is avoided without an increase in pumping loss (without a decrease in the thermal efficiency). In the in-cylinder injection type spark ignition internal combustion engine, during low-load operation, on the basis of the cooling water temperature of the engine the opening and closing timing of the intake valve is controlled in a retard angle manner and the opening and closing timing of the exhaust valve is controlled in an advance angle manner. Furthermore, the fuel injection timing is controlled in a retard angle manner on the basis of the retard angle amount of the intake valve opening and closing timing.12-03-2009
20110270511METHOD ENGINE STARTING - An engine starting method is disclosed. In one example, engine operation is adjusted to reduce catalyst light off time. Exhaust temperatures may be increased until a threshold engine temperature is reached.11-03-2011
20100114459DEVICE AND METHOD FOR CONTROLLING FUEL INJECTION - In a method for controlling fuel injection by means of injectors in a multicylinder internal combustion engine, the injectors are controlled sequentially according to control data for opening and closing in injection processes, wherein for each cylinder in an operating cycle a certain injection segment is defined, during which injection is possible. For the cylinders, a plurality of injection processes are performed per injection segment, the duration and temporal position for these injection processes are defined in the operating cycle, and in a conflict correction step a shift, or suppression, is performed of at least partially overlapping, and therefore conflicting, injection processes.05-06-2010
20130218441METHOD AND SYSTEM FOR ENGINE CONTROL - Methods and systems are provided for restarting an engine when a high pressure fuel pump is degraded. In response to an indication of high pressure fuel pump degradation, fuel may be injected during an intake stroke, rather than a compression stroke, for a selected number of combustion events since the engine restart. By shifting to an intake stroke injection, the engine may be started even when sufficient fuel rail pressures are not available.08-22-2013
20130218440SYSTEM AND METHOD FOR INJECTING FUEL - Methods and systems for adjusting fuel injection of an internal combustion engine are disclosed. In one example, a change in fuel pressure is scheduled when a number of pilot fuel injections provided by a fuel injector to a cylinder transitions from a first number during a first engine cycle to a second number during a second engine cycle. The methods and systems may reduce engine emissions and improve engine noise characteristics.08-22-2013
20090265083VALVE TIMING CONTROL APPARATUS AND VALVE TIMING CONTROL ARRANGEMENT - A valve timing control apparatus for a valve timing adjustment mechanism that adjusts timing of opening and closing an intake or exhaust valve of an engine includes an output-side rotor, a cam-side rotors a hydraulic pump, a control device, a control valve, a storage device. The control device outputs a signal associated with rotation of one of the rotors relative to the other one. The control valve controls the speed of the rotation. The storage device prestores standard data indicating a predetermined relation between a dead zone width and a parameter correlated with the dead zone width for each hydraulic oil temperature. A value of the parameter of the adjustment mechanism during a hold state is learned by changing the signal. The control device computes the signal based on the value learned, the standard data, and hydraulic oil temperature.10-22-2009
20080312809FUEL 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 injectable time InjMax per one combustion cycle is computed on the basis of an engine speed, and whether or not the requested injection time InjT is larger than the injectable time InjMax is determined. Then, when it is positively determined that the requested injection time InjT is larger than the injectable time InjMax, it is estimated that an alternate fuel (for example an alcohol fuel) other than a regular fuel (for example gasoline) is blended with a fuel in a fuel tank.12-18-2008
20120296557SYSTEM AND METHOD FOR TORQUE CONTROL IN A HOMOGENEOUS CHARGE COMPRESSION IGNITION ENGINE - A control system for a homogeneous charge compression ignition (HCCI) engine includes first and second modules. The first module determines a load on the HCCI engine when the HCCI engine is operating in an HCCI combustion mode. The second module controls torque generated by the HCCI engine based on the determined load and a predetermined threshold, wherein the second module controls the torque generated by the HCCI engine by controlling fueling of the HCCI engine.11-22-2012
20120296556SYSTEM AND METHOD FOR CONTROLLING INTAKE VALVE TIMING IN HOMOGENEOUS CHARGE COMPRESSION IGNITION ENGINES - A control system for a homogeneous charge compression ignition (HCCI) engine includes first and second modules. The first module determines an adjusted intake valve opening (IVO) timing based on a base IVO timing and an IVO timing adjustment, wherein the IVO timing adjustment is based on one or more of a plurality of operating parameters. The second module controls intake valves of the HCCI engine based on the adjusted IVO timing.11-22-2012
20090118984Ignition Method with Energy Conservation and Environmental Protection for Gasoline Engine - This invention makes known by a method of the ignition, which is energy conservation and environmental protection. Its characteristic is that the ignitor can fire possibly to close with the point of ignition which is under the control of digital single-chip microcomputer-controlled circuit in some working conditions. The degree of approach in proportion as the speed of operation, so that the engine output speed namely the engine output power is highest. The present invention needn't preset the so-called the best ignition curve which does not exist, but it adjusts the ignition time automatically base on the working conditions of engine. This method ensures the present system could fire at the best time in any working conditions. This technology applies to products which use gasoline engine, for example, cars, motorbikes.05-07-2009
20090118986CONTROL DEVICE OF DIRECT INJECTION INTERNAL COMBUSTION ENGINE - When engine rotation speed is increasing in a compression stroke injection mode, a control device determines that a crank angle at injection end timing of an injector deviates toward a delayed crank angle side and performs additional ignition at timing when (or immediately before or after) a crank angle at actual injection end timing of the injector of a present injection cylinder is reached. Thus, even when the crank angle at the injection end timing deviates toward the delayed crank angle side with respect to preset original ignition timing, a combustion state can be stabilized by performing the additional ignition at timing, at which a suitable stratified mixture gas is formed in a cylinder, through the execution of the additional ignition at the timing substantially the same as the actual injection end timing.05-07-2009
20090118985SECURED COUNT OF CYLINDERS FUELED IN A COORDINATED TORQUE CONTROL SYSTEM - A control system for a vehicle includes a first counter that indicates a first count of a number of cylinders of an engine of the vehicle that are fueled. A second counter indicates a second count of the number of cylinders that are fueled. A control module determines a secure count based on the first count and the second count. The control module adjusts torque output of the engine based on the secure count.05-07-2009
20090187329Method of Controlling a Mechanical Compression Ratio and a Start Timing of an Actual Compression Action - An internal combustion engine provided with a variable compression ratio mechanism able to change a mechanical compression ratio and an actual compression action start timing changing mechanism able to change a start timing of an actual compression action. The mechanical compression ratio is made maximum so that the expansion ratio becomes 20 or more at the time of engine low load operation, while the actual compression ratio at the time of engine low load operation is made an actual compression ratio substantially the same as that at the time of engine high load operation.07-23-2009
20090055085VARIABLE VALVE TIMING APPARATUS AND CONTROL METHOD THEREOF - At the time of reference position learning, an operation amount of an actuator is set such that intake valve phase changes to a position of most retarded angle in a region where the amount of change in intake valve phase relative to the actuator operation amount is small (S02-26-2009
20090082945Continuously variable transmission system with power boost - A method is provided of boosting power to a continuously variable transmission having a motor. The continuously variable transmission is powered by an engine. The method includes selectively adjusting a power output of the engine above a steady state power output rating of the engine when an acceleration of the motor exceeds an acceleration threshold value.03-26-2009
20090222197CONTROL APPARATUS AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE - A control apparatus for an internal combustion engine is employed for a multi-cylinder internal combustion engine. The control apparatus includes a variable valve operating mechanism which changes a valve characteristic of an engine valve; a valve stop mechanism which stops opening/closing of the engine valve in at least one cylinder; and a controller which executes a variable valve control that makes an actual value of the valve characteristic match a target value by executing a hydraulic pressure control for the variable valve operating mechanism, and which operates the valve stop mechanism so that a reduced-cylinder operation is performed when an engine operating state is in a preset reduced-cylinder operation region. If it is determined that a pressure of hydraulic fluid supplied to the variable valve operating mechanism satisfies a preset condition when the engine operating state is in the reduced-cylinder operation region, the controller prohibits the variable valve control.09-03-2009
200902221962-STEP OIL CONTROL VALVE FAILURE DIAGNOSTIC - A method may include commanding operation of an engine in a first lift mode. The engine may include a valve lifter system that selectively operates a valve member in the first lift mode and a second lift mode through engagement with a camshaft. A first duty cycle of a cam phaser oil control valve (OCV) may be determined to maintain a first camshaft position corresponding to the first lift mode. The camshaft position may be maintained by a cam phaser that is coupled to the camshaft and in communication with the cam phaser OCV. Engine operation may be commanded to the second lift mode and a second duty cycle of the cam phaser OCV may be determined to maintain a second camshaft position corresponding to the second lift mode. A valve lifter system failure may be diagnosed based on a difference between the first and second duty cycles.09-03-2009
20120197512FUEL INJECTION CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING INTERNAL COMBUSTION ENGINE - A fuel injection control apparatus includes a first injection timing setting device, a target second injection timing setting device, a reference injection timing calculator, and a second injection timing setting device. The reference injection timing calculator is configured to calculate, as a reference injection timing, a timing at which a second-injection boosting operation is to be completed. The second-injection boosting operation is to re-boost a reduced voltage which has been reduced because of an execution of a first injection operation by using a booster circuit. The second injection timing setting device is configured to set, as a second injection timing at which a second injection operation is to be started, a later one of a target second injection timing set by the target second injection timing setting device and the reference injection timing calculated by the reference injection timing calculator.08-02-2012
20100161201METHOD, RECORDING SUPPORT AND DEVICE TO CALIBRATE FUEL INJECTION - A method to calibrate the fuel injection in at least one combustion chamber of a Diesel engine includes: 06-24-2010
20120173125METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE - The invention relates to a method for operating an internal combustion engine and a combustion chamber for such an internal combustion engine. According to the method, a thinned base mixture is ignited by additionally injecting a pilot fuel at an injection point in time, wherein the injection point in time of the pilot fuel is selected such that the pilot fuel is not fully homogenized with the base mixture.07-05-2012
20100191442INTERNAL COMBUSTION ENGINE CYCLE - An internal combustion engine including an air intake pressurization device having an outlet from which air at a pressure substantially greater than ambient air pressure is expelled, an expansible combustion chamber into which air is received from the device outlet and from which exhaust gases are expelled, first and second intake valves and one or more exhaust valves, each valve having open and closed states. The combustion chamber is in periodic fluid communication with the device outlet through at least one of the first and second intake valves, and exhaust gases are expelled from the combustion chamber via the exhaust valve(s). A control valve disposed between the first intake valve and the device outlet has an open position in which the device outlet and the combustion chamber are in fluid communication via the first intake valve in its open state, and a closed position in which fluid communication between the device outlet and the combustion chamber via the first intake valve is comparatively restricted. The exhaust valve(s) is in its open state when the first and second intake valves are both in their closed states, the first and second intake valves are both in their open states when the exhaust valve(s) is in its closed state, and the second intake valve is moved from its open state into its closed state substantially prior to movement of the first intake valve from its open state into its closed state.07-29-2010
20100241336Method and device for correlating cylinder charge and maximum intake valve lift of internal combustion engine - A method for determining a cylinder charge of an internal-combustion engine having valves with a variable valve gear, may include determining a maximum intake valve lift, calculating a standardized cylinder charge relative to at least one of a defined intake spread of an intake valve opening phase and a defined exhaust spread of an exhaust valve opening phase, as a function of the maximum intake valve lift, determining an overlap value, which characterizes an actual overlap of the intake valve opening phase and the exhaust valve opening phase, and determining a corrected cylinder charge based on the standardized cylinder charge and the overlap value.09-23-2010
20100241338MOTOR CONTROL STRATEGY FOR A HYDRAULIC CAMSHAFT ADJUSTER HAVING A MECHANICAL CENTRAL LOCK - A motor control strategy for a hydraulic camshaft adjuster. The motor control strategy has a mechanical central lock which in turn has at least one rotor and one stator, between which hydraulically loadable chamber A and chambers B are provided. Locking pistons supported in an axially displaceable manner are provided in the rotor for the mechanical central lock. A hydraulic system and an electrically controllable solenoid valve are provided The valve is powered in a controlled manner by a motor control device, which receives an “ignition off” signal; the motor being turned off, and at least one signal for current angular position of the camshaft adjuster, which compares the angular position to at least one zone definition stored in the motor control device, forms control commands from the same, and transmits the control commands to the electric solenoid valve.09-23-2010
20100217504METHOD OF CONTROLLING ENGINE SYSTEM AND ENGINE SYSTEM - A valve overlap period is increased as a desired torque of an engine increases by advancing an opening timing of an intake valve at a rate greater than that of retarding a closing timing of an exhaust valve in a low engine-torque area in which the desired torque of the internal combustion engine is relatively low (step S08-26-2010
20100241337APPARATUS FOR AND METHOD OF CONTROLLING ENGINE - There is a control apparatus of an engine including a variable valve timing mechanism having a locking mechanism for locking a rotation phase of a camshaft with respect to a crankshaft to a target for the engine starting. In a case where the rotation phase has not reached the target for the engine starting at the time of the engine starting, fuel injection to the engine is restricted from the commencement of the engine starting until an integrated value of valve opening frequencies reaches a threshold, and when the integrated value of the valve opening frequencies has reached the threshold, it is regarded that the rotation phase is locked to the target for the engine starting by a locking mechanism, and fuel supply to the engine is permitted.09-23-2010
20120035834CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - Disclosed is a control device that is used for an internal combustion engine and capable of periodically varying an air-fuel ratio while keeping torque generated by the internal combustion engine at a target torque. The control device can periodically vary a target air-fuel ratio and controls a fuel injection amount in accordance with the target air-fuel ratio which periodically varies. Further, the control device sets an air amount control torque in accordance with the target torque and calculates a target air amount for achieving the air amount control torque at a predetermined virtual air-fuel ratio. The control device then provides air amount control in accordance with the target air amount and calculates an air amount that is estimated to be achieved by the air amount control. Eventually, the control device calculates torque that is estimated to be achieved by the estimated air amount at the target air-fuel ratio, and provides ignition timing control so as to compensate for the difference between the estimated torque and the target torque by correcting ignition timing.02-09-2012
20100222989INTERNAL COMBUSTION ENGINE - An internal combustion engine having a plurality of banks; each having a cylinder provided to said banks comprising: an intake valve provided between said cylinder and an intake manifold a camshaft opening and closing said intake valve by means of mechanical power of said internal combustion engine; and a changing unit changing, according to an operating state of said internal combustion engine a phase angle of said camshaft said phase angle corresponding to a closing timing of said intake valve said banks differing from each other in most retarded phase angle changed by said changing unit.09-02-2010
20100222990VARIABLE VALVE TIMING APPARATUS AND CONTROL METHOD THEREFOR - An ECU executes a program including the step of stopping power supply to an electric motor if a phase of an intake valve is in a first region between the most retarded angle and CA. In the case where the phase of the intake valve is in the first region, the rotational speed of relative rotation between the output shaft of the electric motor and a sprocket is reduced at reduction gear ratio R thereby to vary the phase of the intake valve. In the case where the phase of the intake valve is in a second region between CA and the most advanced angle, the rotational speed of the relative rotation is reduced at reduction gear ratio R thereby to vary the phase of the intake valve.09-02-2010
20090043483VARIABLE VALVE CONTROLLER FOR AN INTERNAL COMBUSTION ENGINE AND METHOD FOR OPERATING THE SAME - A variable valve controller for internal combustion engines and methods for operating the same. In the variable valve controller, and engine control unit (ECM) calculates a target value of a valve lift (VEL) for an intake valve and transmits it to a controller with a second control unit (VEL-C/U). The VEL-C/U controls the VEL on the basis of the VEL target value, detects a VEL actual value, and transmits it to the ECM. The ECM calculates a target value of a valve timing (VTC), and controls the VTC. Also, the ECM controls a limit value for the VTC target value in accordance with the VEL actual value. Fail-safe control is performed when an error occurs in a communication unit or a sensor. To reliably perform the control in a period from occurrence of an error to detection of the error, the limit value is set with calculation by offsetting a limit basic value set in accordance with the VEL actual value, by a displacement of the VEL within a time necessary for detecting the error.02-12-2009
20090177369FUEL INJECTION CONTROL APPARATUS - To provide a fuel injection control apparatus capable of reducing the minimum quantity of fuel injection without reducing the maximum quantity of injection.07-09-2009
20090112444CONTROL DEVICE AND CONTROL SYSTEM OF INTERNAL COMBUSTION ENGINE - An internal combustion engine control device has a cylinder pressure sensor for sensing pressure in a combustion chamber and a fuel pressure sensor for sensing fuel pressure fluctuating in connection with fuel injection from an injector. The control device calculates a combustion characteristic of a cylinder (for example, an ignition delay or a combustion rate) based on both of a cylinder pressure sensing value and a fuel pressure sensing value. The control device corrects an EGR quantity, supercharging pressure, and injection start timing in accordance with the calculated combustion characteristic. Thus, the control device performs cooperative control of the injection start timing (an injection mode), the supercharging pressure and the EGR quantity (intake air conditions) in accordance with the combustion characteristic of the cylinder.04-30-2009
20120143480METHOD AND SYSTEM FOR ENGINE CONTROL - Methods and systems are provided for fuel systems including a gaseous fuel. Temporary flow restrictions in the fuel line of a first gaseous fuel may be addressed by temporarily shifting to cylinder operation with a second liquid fuel. Upon resumption of first fuel operation, if the flow restriction persists, a diagnostic code may be set and cylinder operation with the second fuel may be restarted.06-07-2012
20090198437CAMSHAFT PHASER POSITION CONTROL SYSTEM - A camshaft phasor control system for an engine includes a position control module. The position control module generates a position control signal based on a camshaft position command signal and a gain signal. A gain circuit generates the gain signal based on the position control signal and feeds the gain signal back to the position control module. The position control module positions a camshaft of the engine based on the gain signal.08-06-2009
20100305833FUEL INJECTION CONTROL APPARATUS OF INTERNAL COMBUSTION ENGINE - In one embodiment, a determination is made of whether or not in a condition in which a compressed gas temperature will reach a fuel self-ignition temperature by only a compression operation in the compression stroke, and in a case where the compressed gas temperature will reach the fuel self-ignition temperature, pilot injection is judged to be unnecessary, so this pilot injection is prohibited.12-02-2010
20090070015VALVETRAIN CONTROL SYSTEMS FOR INTERNAL COMBUSTION ENGINES WITH MULTIPLE INTAKE AND EXHAUST TIMING BASED LIFT MODES - A valve control system for an internal combustion engine includes a valve actuation system that actuates each of an intake valve and an exhaust valve between N open lift modes where N is an integer greater than one. A control module defines a switching window having a start time based on intake valve timing and an end time based on exhaust valve timing. The control module enables transitioning of at least one of the intake and exhaust valves between the N open lift modes based on the switching window.03-12-2009
20090070014CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE - An object of the present invention is to provide a technique that enables to more preferably suppress an unpreferable exhaust emission in an internal combustion engine having a supercharger while the supercharging pressure is increased by the supercharger. According to the present invention, in an internal combustion engine having a supercharger and an exhaust gas purification catalyst provided in the exhaust passage, while the supercharging pressure is increased by the supercharger, the quantity of the flow-through air that flows from the intake port out into the exhaust port during the valve overlap period is regulated by controlling the valve overlap period (S03-12-2009
20090070016VALVETRAIN CONTROL SYSTEMS FOR INTERNAL COMBUSTION ENGINES WITH TIME AND EVENT BASED CONTROL - A valve control system includes a vehicle control module that generates a lift mode command signal to transition one of intake and exhaust valves between N open lift modes. A time module generates a response time signal that indicates a duration of the transition and a lift limit signal that disables the transition. The time module generates the response time and lift limit signals based on current lift mode and status signals. The current lift mode signal indicates a current lift state of one of the intake and exhaust valves. The status signal indicates status of a lift control valve. The lift control valve actuates one of the intake valve and the exhaust valve. The event module generates the current lift mode and status signals based on the lift command signal, the response time signal, and the lift limit signal. One of the time and event modules enables the transition.03-12-2009
20090070013Control system for internal combustion engine - To provide a control system for an internal combustion engine, which is capable of attaining both the securing of excellent drivability and the reduction of impact occurring when a movable part abuts against a restriction part at the same time. The control system 03-12-2009
20090125216CONTROL APPARATUS FOR AN INTERNAL COMBUSTION ENGINE - Provided is a control apparatus for an internal combustion engine which controls the internal combustion engine in such a manner as to prevent excessive overshoot of an actual phase angle at a time of phase angle feedback control. The control apparatus for an internal combustion engine includes: a unit for detecting an actual phase angle of a camshaft based on a crank angle signal and a cam angle signal; a unit for setting a target phase angle of the camshaft based on an operational state; and a unit for performing phase angle feedback control calculation such that the actual phase angle coincides with the target phase angle, to calculate an amount of operation for the hydraulic pressure control solenoid valve, in which: the phase angle feedback control calculation is started for a first time after a KEY is turned ON with an initial value of an integral term set to a predetermined value; the phase angle feedback control calculation is performed using a control gain obtained by multiplying a control gain at a time of normal control when a control difference is equal to or larger than a preset value during the phase angle feedback control; and the phase angle feedback control calculation is performed using the control gain at the time of normal control when the control difference is smaller than the preset value during the phase angle feedback control.05-14-2009
20090063021Control Apparatus of Cylinder Injection Type Internal Combustion Engine - An object of the invention is to reduce an HC generated in a so-called fast idle period in which an engine and a catalyst are warmed up, stabilize a combustion and achieve an early activation of the catalyst, at a cold starting time of a cylinder injection type engine. In a control apparatus controlling a cylinder injection type internal combustion engine directly feeding a fuel into a combustion chamber by a fuel injection apparatus attached to a portion near an intake valve, the control apparatus controls the fuel injection apparatus so as to carry out an intake stroke injection, makes a lift amount of an intake valve smaller than a lift amount at a time of a high load, and controls such that an opening timing of the intake valve comes closer to an intake stroke side near an intake top dead center, in a fast idle period of the cylinder injection type internal combustion engine.03-05-2009
20120245828CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE INCLUDING VARIABLE VALVE OPERATING APPARATUS - Provided is a control apparatus for an internal combustion engine that can suppress deterioration of a catalyst that is ascribable to a control delay of a variable valve operating apparatus when transitioning to a valve stopped state accompanying a fuel-cut operation, or when transitioning from the valve stopped state to a combustion limit operating state. An intake variable valve operating apparatus capable of changing the operating state of an intake valve to a valve stopped state by continuously changing a lift amount and working angle of the intake valve is included. When the temperature of a catalyst is equal to or greater than a predetermined temperature, fuel injection is executed to supply fuel into an exhaust passage during a period in which the operating state of the intake valve transitions to the valve stopped state, during a period in which a fuel-cut operation is executed in the valve stopped state, or during a period in which the operating state of the intake valve transitions from the valve stopped state to a return limit operating state.09-27-2012
20090048764Engine Control Apparatus and Method - To provide a control apparatus of an engine that improves vehicle drivability by controlling a variable valve mechanism. The control apparatus of an engine prohibits the changing of the valve duration of an intake valve during a stop of an engine.02-19-2009
20120245826METHOD AND APPARATUS TO REDUCE ENGINE NOISE IN A DIRECTION INJECTION ENGINE - A method to reduce engine noise in a multi-cylinder direct injection internal combustion engine. The internal combustion engine includes a high pressure fuel pump having both an inlet valve fluidly connected to a fuel source and an outlet valve typically connected to a pressurized fuel rail. In order to reduce engine noise, especially at low engine speeds, the timing of the opening of either the fuel pump inlet valve or fuel pump outlet valve is varied so that it coincides with the opening of the fuel injectors.09-27-2012
20120245827Method and System for Pre-Ignition Control - Methods and systems are provided for addressing cylinder pre-ignition. Each cylinder of an engine may be operated in either a split injection mode or a single injection mode based on the pre-ignition history of the cylinder. The timing and number of injections in the split injection mode is adjusted based on the pre-ignition count of the cylinder.09-27-2012
20090216428LATE INTAKE VALVE CLOSING TO IMPROVE COLD STARTABILITY FOR SPARK-IGNITION DIRECT-INJECTION (SIDI) ENGINES - An engine control system includes a cam phaser that introduces a cam phase angle θ between a camshaft intake lobe and an associated crankshaft. An engine control module communicates with the cam phaser to introduce the cam phase angle θ while an engine is being started. The cam phase angle θ is selected such that the camshaft intake lobe opens an intake valve during at least a portion of a compression stroke of a cylinder that is associated with the camshaft intake lobe.08-27-2009
20100070159AIR TO FUEL RATIO CONTROL DEVICE - An air-fuel ratio control device of an internal combustion engine is provided. The control device includes a learning section, a correction section, and an inhibiting section. When an execution condition is met, the learning section learns, as a deviation amount learned value, a constant deviation amount between a correction amount and its reference value in different manners between a case in which the lift amount of the intake valve is in a first lift amount region used only when the execution condition is not met and a case in which the lift amount is in a second lift amount region used only when the execution condition is met. The learning section computes and stores the relationship between the deviation amount and the lift amount based on the deviation amount learned value. A correction section computes the deviation amount correction value from the stored relationship based on the lift amount, and corrects the fuel injection amount command value using the deviation amount correction value. When there is no record of completing learning of the deviation amount when the lift amount is in the first lift amount region, an inhibiting section inhibits the lift amount from being shifted from the first lift amount region to other lift amount region.03-18-2010
20100070158FUEL INJECTION DEVICE - A fuel injection device (03-18-2010
20080243363VALVE CHARACTERISTIC CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A valve characteristic control apparatus is provided in an internal combustion engine including a variable valve mechanism that can change at the least, among valve characteristics of an exhaust valve, a closing timing of the exhaust valve, and in which a number of injections of fuel is changed during one engine cycle. The valve characteristic control apparatus sets the closing timing of the exhaust valve to a retard side during an engine warming up operation. When setting to the retard side is performed, if two injections are performed, an exhaust side target displacement angle VTTex of the exhaust valve is calculated based on a dual injection use map. On the other hand, if one injection is performed, the exhaust side target displacement angle VTTex of the exhaust valve is calculated based on a single injection use map.10-02-2008
20080319638Control System - A control system which is capable of compensating for and suppressing the influence of a periodic disturbance on a controlled object more quickly, even when the controlled object is subjected to the periodic disturbance the amplitude of which periodically changes, thereby enhancing the stability and the accuracy of control. The control system includes an ECU. The ECU calculates disturbance compensation values for compensating for a periodic disturbance by searching maps and tables, in timing of generation of each pulse of a CRK signal. The ECU calculates control inputs at a predetermined control period, with predetermined control algorithms, according to the disturbance compensation values read in at the control period, respectively.12-25-2008
20100305834ENGINE FUEL INJECTION CONTROL APPARATUS - An engine fuel injection control apparatus includes a variable valve device that at least varies an intake valve open timing of an intake valve. A controller adjusts the variable valve device and a fuel injection timing of a fuel injection valve. The controller controls a fuel injection end timing in accordance with an overlap amount of the intake valve and an exhaust valve. The controller adjusts the fuel injection timing such that the fuel injection end timing is more advanced than the intake valve open timing and such that as an amount by which the overlap amount exceeds a prescribed overlap amount becomes larger, a time interval between the fuel injection end timing and the intake valve open timing is set to become increasingly larger, upon determining that the engine is being cold started and the overlap amount is larger than the prescribed overlap amount.12-02-2010
20100280744DEVICE FOR CONTROLLING THE OPERATION OF AN INTERNAL COMBUSTION ENGINE, WITH IMPROVED REPHASING OF INJECTION EVENTS - A device (D) is dedicated to controlling the operation of an internal combustion engine (M) including at least two cylinders (Ci), each equipped with at least one inlet valve (SA) and at least one injector (IJ), and of the so-called indirect and sequential fuel injection type. This device (D) includes detection elements (MD) designed to detect an injection event phasing error relative to reference angular positions specific to the various cylinders (Ci), and control elements (MC) designed to rephase, if a phasing error of a cylinder (Ci) is detected, the command to open the injector (IJ) of this cylinder (Ci) after closure of the inlet valve (SA).11-04-2010
20120310511CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - When a working angle of an intake valve is increased in accordance with a deficiency in a working fluid pressure of a VVT mechanism, an electronic control unit corrects an opening degree of a throttle valve so as to increase an intake air amount, and thereby restraining the intake air amount from decreasing in accordance with the increase in the working angle with a valve timing of the intake valve retarded, and hence suppressing a fall in an engine rotational speed.12-06-2012
20100250102FUEL INJECTION DETECTING DEVICE - A fuel injection detecting device computes an actual fuel-injection-end timing based on a rising waveform of the fuel pressure detected by a fuel sensor during a period in which the fuel pressure increases due to a fuel injection rate decrease. The rising waveform is modeled by a modeling formula. A reference pressure Ps(n) is substituted into the modeling formula, whereby a timing “te” is obtained as the fuel-injection-end timing.09-30-2010
20110178696CONTROL UNIT FOR ONE OR MORE ELECTROMAGNETIC ACTUATORS OF A HEAT ENGINE VALVE, AND DIFFERENT ASSEMBLIES OF SUCH CONTROL UNITS AND SUCH ELECTROMAGNETIC ACTUATORS - The invention relates to a control unit (07-21-2011
20090292451VARIABLE OPERATION ANGLE MECHANISM AND APPARATUS FOR AND METHOD OF CONTROLLING ENGINE - The present invention relates to a variable operation angle mechanism that can improve engine performance at transient operation by optimally setting a ratio between change amounts of opening and closing timings accompanying a variation in valve operation angle of intake valve, and relates to an apparatus for and a method of controlling an engine including the variable operation angle mechanism. In the variable operation angle mechanism, ratio RIVO of change amount of opening timing IVO of intake valve to change amount of valve operation angle is set to be 20% or more and 40% or less, and preferably, to be 30%. In engine including a variable valve timing mechanism varying a rotating phase of intake camshaft relative to crankshaft and the variable operation angle mechanism, a target phase change amount varied by the variable valve timing mechanism is corrected for phase change amount accompanying the variation in the valve operation angle.11-26-2009
20110040475MISFIRE DETECTION THROUGH COMBUSTION PRESSURE SENSOR - A method is provided for controlling an internal combustion engine. The method includes, but is not limited to the step of measuring in-cylinder pressure of an expansion phase of a combustion cycle of a cylinder of the internal combustion engine and measuring in-cylinder pressure of a compression phase of the combustion cycle of the cylinder of the internal combustion engine. A difference between a polytrophic expansion phase constant of the cylinder of the internal combustion engine and a polytrophic compression phase constant of the cylinder of the internal combustion engine is then determined using the measured expansion phase pressure and the measured compression phase pressure. A misfiring of the cylinder is later detected using the determined difference.02-17-2011
20110307164Control Device for In-Cylinder Fuel Injection Type Internal Combustion Engine - Provided is a control device for an in-cylinder injection engine which reduces an amount of fuel attaching and remaining on a piston crown surface so as to bring the first injection as advanced as possible and suppress an increase in the number of exhaust particles of PM, when fuel injection is performed a plurality of times in one cycle in the in-cylinder injection engine. At least the first fuel injection of the respective injections dividedly performed the plurality of times is performed in an intake stroke. At least the first injection start timing of the respective injections dividedly performed the plurality of times is set in accordance with an EGR amount. The first injection start timing is more advanced when the EGR amount is large than when the EGR amount is small.12-15-2011
20090281712Method for Improving the Running Smoothness of an Internal Combustion Engine, Control Device and Internal Combustion Engine - In a method for improving the running smoothness of an internal combustion engine (11-12-2009
20100121558DIESEL ENGINE HAVING CAMS FOR CONTROLLING THE INTAKE VALVES, WHICH HAVE A MAIN LOBE AND AN ADDITIONAL LOBE RADIUSED TO EACH OTHER - A supercharged diesel engine is equipped with an electronically controlled hydraulic system for variable actuation of the intake valves of the engine. The cam that controls each intake valve has an additional lobe for causing an additional opening of the intake valve, during the expansion and exhaust strokes, so as to provide an exhaust-gas recirculation directly inside the engine. The aforesaid additional lobe has its descending stretch radiused to the main lobe with a stretch corresponding to a non-zero lift of the valve in such a way that the profile of the lift of the valve has a portion corresponding to a substantially non-zero value of the lift that radiuses the descending stretch of the profile of the additional lift to the ascending stretch of the profile of the main lift.05-13-2010
20120158273MULTI-MODE HIGH EFFICIENCY INTERNAL COMBUSTION ENGINE - An internal combustion engine is operable in an efficiency mode providing a first power output range between zero and a transition power output and in a power mode providing a second power output range between the transition power output and a maximum power output. The efficiency mode can include a first ignition timing and a first air/fuel ratio of the mixture to avoid premature auto-ignition, and the power mode can include a second ignition timing and a second air/fuel ratio of the mixture to avoid premature auto-ignition of the mixture. To further enable knock free operation of such an engine, turbulence can be imparted to the mixture to promote a faster burn duration and high temperatures that may lead to premature auto-ignition of the mixture can be avoided.06-21-2012
20110071748CONTROL DEVICE FOR AN ENGINE - In an engine having a variable valve timing mechanism to which an intermittent operation control is applied, appropriate execution of a foreign object removal process for the variable valve timing mechanism is enabled. An engine control device (03-24-2011
20110066357INFERRED OIL RESPONSIVENESS USING PRESSURE SENSOR PULSES - A system and method for controlling an internal combustion engine include determining oil responsiveness based on pressure variations associated with oil pump pulses in response to a stimulus, and controlling the engine based on the determined oil responsiveness. The stimulus may be a change in oil temperature, engine speed, or commanded pump pressure, for example. The system and method may also use the rate of change of mean oil pressure to determine the oil responsiveness or measure of oil viscosity. Oil responsiveness may be used to control hydraulic actuators, such as variable cam timing devices, or valve deactivation devices.03-17-2011
20090132151Fuel injection control method of engine and fuel injection control device for same - In a method of permitting an electronic control device 05-21-2009
20120173127CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - An object of this invention is to promptly detect a crank angle based on in-cylinder pressures and easily compensate for a detection error by processing that has a low computational load. An ECU 07-05-2012
20120166069Method and Device for Operating an Internal Combustion Engine - In a method for operating an internal combustion engine in which fuel arrives in at least one combustion chamber via at least one injector configured as an electromagnetic actuating device, an opening delay time of the injector (06-28-2012
20120130623CONTROL DEVICE AND CONTROL METHOD USED FOR ENGINE INTAKE AIR-OR-GAS SYSTEM - A control device of a control valve used for an intake air-gas system of an engine, the device including, but not limited to: the control valve which is an intake air throttle valve provided in the intake air-gas system provided in the intake air-gas system of the engine to control the flow rate of intake air to the engine, or an EGR valve provided in the intake air-gas system of the engine to control the flow rate of EGR gas to the engine; and a control unit which determines a target opening of the control valve in response to the operation conditions of the engine, and controls the opening of the control valve so that the opening conforms with the target opening, wherein the control unit is configured so that, in a case where the target opening is maintained at a same level during over a fixed duration, the target opening is changed, in time, from the target opening which is determined in response to the operation conditions of the engine and controls the opening of the control valve, in order to prevent the control valve from being out of order as well as in order to detect a failure of the control valve.05-24-2012
20120316758ENGINE CONTROL APPARATUS - An engine control apparatus includes a target air volume calculator which calculates a target air volume required by an engine, and an actual air volume calculator which calculates an actual air volume inhaled into a cylinder of the engine. The apparatus further includes an estimator which calculates the estimated value of subsequent actual air volume on the basis of a time lag from a time when the target air volume is calculated to a time when the actual air volume reaches the target air volume. The apparatus can accurately estimate an intake air volume inhaled into the cylinder to improve the controllability of the engine.12-13-2012
20100332109CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - A control device for an internal combustion engine of a spark-ignition type that injects fuel directly into a combustion chamber including a temperature detector that detects the temperature of the combustion chamber, a load detector that detects the load of the internal combustion engine, and a controller. The controller performs a first control when the temperature of the combustion chamber is lower than or equal to a predetermined temperature and the load of the internal combustion engine is higher than a predetermined load such that the timing of fuel injection is advanced compared with the timing when the load of the internal combustion engine is lower than or equal to the predetermined load.12-30-2010
20120215425METHOD FOR COMPENSATING AN OPERATING IMBALANCE BETWEEN DIFFERENT BANKS OF A TURBOCHARGED ENGINE - A method for controlling differences in cylinder mixtures for a two cylinder bank engine having a turbocharger is presented. In one example, the description includes a method for adjusting valve timing to reduce cylinder mixture variation.08-23-2012
20110184630METHOD FOR CONTROLLING AN ENGINE VALVE OF AN INTERNAL COMBUSTION ENGINE - An internal combustion engine system is equipped with a controllable engine valve actuation system. Controlling lift of an engine valve includes periodically monitoring engine valve lift and engine crank angle. A preferred engine valve lift profile is determined in a crank angle-domain. A preferred engine valve position is determined in the crank angle-domain. The preferred engine valve position is interpolated to determine a preferred engine valve position in the time-domain. The control circuit is actuated to control the engine valve in the time-domain.07-28-2011
20100185381Method and Apparatus for Controlling Exhaust Gas Recirculation and Start of Combustion in Reciprocating Compression Ignition Engines With An Ignition System With Ionization Measurement - An apparatus and method to detect combustion conditions using ion signals for use in a feedback control of a reciprocation engine is presented. The ion signals are used as a feedback signal to control EGR and diesel injection timing. The apparatus is an ignition system with a spark plug type of sensor. The ignition system is used to provide a cold start mechanism for diesel engines and start of combustion for spark ignition engines. The ignition is combined with ion sensing feedback that can control the engine.07-22-2010
20120316757COMBUSTION PHASING CONTROL METHODOLOGY IN HCCI COMBUSTION - Controlling combustion in a spark-ignition direction-injection internal combustion engine includes providing an initial injected fuel mass timing and an initial spark ignition timing. A combustion phasing error is monitored and compared with each of the initial injected fuel mass timing and the initial spark ignition timing. An adjusted injected fuel mass timing and an adjusted desired spark ignition timing is determined based on the comparing for maintaining a desired combustion phasing.12-13-2012
20120316759VARIABLE COMPRESSION RATIO V-TYPE INTERNAL COMBUSTION ENGINE - The present variable compression ratio V-type internal combustion engine is a variable compression ratio V-type internal combustion engine which joins cylinder blocks of two cylinder groups and makes the joined cylinder block move relatively to a crankcase, wherein at each relative movement position of the joined cylinder block, the intake valve closing timings of the cylinders are controlled so that the actual compression ratios of the two cylinder groups become equal and thus the temperature difference and pressure difference in the cylinders at top dead center between the two cylinder groups are reduced.12-13-2012
20120226432CONTROLLING CYLINDER MIXTURE AND TURBOCHARGER OPERATION - A method for controlling differences in exhaust gas residual amount for a two cylinder bank engine having at least one turbocharger is presented. In one example, the description includes a method for adjusting valve timing to reduce cylinder exhaust gas residual variation.09-06-2012
20120226431CONTROL SYSTEM FOR AN INTERNAL COMBUSTION ENGINE - An internal combustion engine includes a hydraulically-driven variable valve timing device for adjusting the opening timing and the closing timing of an intake valve and configured to include a start retard position for decompression that is retarded further from the most retarded position during a normal operating state, and a control system configured to start a cranking operation of the internal combustion engine while the variable valve timing device is positioned in the start retard position for decompression, to determine during the cranking operation whether operating oil has drained from the variable valve timing device, when it has been determined that oil has drained from the variable valve timing device, to set a delay time between the cranking operation start and an advance operation of the variable valve timing device longer than the situation in which operating oil is replete.09-06-2012
20090018756METHOD FOR COMPENSATING AN OPERATING IMBALANCE BETWEEN DIFFERENT BANKS OF A TURBOCHARGED ENGINE - A method for controlling differences in cylinder mixtures for a two cylinder bank engine having a turbocharger is presented. In one example, the description includes a method for adjusting valve timing to reduce cylinder mixture variation.01-15-2009
20120232774MISFIRE DETECTING APPARATUS FOR INTERNAL COMBUSTION ENGINE - A misfire detecting apparatus for an internal combustion engine is provided. The engine has an output shaft connected via a torsion element to an input shaft of a transmission mechanism. A transmission rotational speed parameter indicative of a rotational speed of the input shaft is detected. A modified engine rotational speed parameter is calculated by modifying the detected engine rotational speed parameter based on the transmission rotational speed parameter, an engine rotation moment on the input side of the torsion element, and a transmission rotation moment on the output side of the torsion element. An average change amount of the modified rotational speed parameter, and an inertia speed changing component, are calculated. Further, a corrected rotational speed parameter is calculated by correcting the modified rotational speed parameter according to the average change amount and the inertia speed changing component. A relative speed parameter is calculated based on the corrected rotational speed parameter, and a determination parameter is calculated by integrating the relative speed parameter. The misfire determination is performed based on the determination parameter.09-13-2012
20090276145SYNCHRONIZATION DEVICE FOR AN ENGINE - A synchronization device for an engine is provided that has a first active sensor and a second active sensor. The first active sensor is adapted to determine an angular position of a first shaft and the second active sensor is adapted to determine the angular position of a second shaft. The first active sensor and the second active sensor are adapted to provide information on the state of the angular position of the first shaft and the second shaft or the angular position of the first shaft and the phase position between the first shaft and the second shaft to the control device. In addition, the control device is adapted to provide a control signal for setting a given phase difference between the first and the second shaft.11-05-2009
20080300773Torque Delivery - A system for controlling a multiple cylinder internal combustion engine having a plurality of cylinders with electronically actuated valves (EVA) is presented. The system is designed to improve the torque delivery of an EVA engine that operates a portion of cylinders in an HCCI combustion mode.12-04-2008
20120239277FUEL BASED ENGINE OPERATION CONTROL - Methods are provided for operating an engine with a variable fuel blend in a cylinder, where the variable fuel blend varies a peak achievable engine torque for a given operating condition. One example method comprises selectively operating an engine actuator that affects engine torque and engine fuel economy at the given operating condition, and extending operation of the actuator to higher engine torques as a peak engine torque for the given operating condition increases.09-20-2012
20080281503Regulator Device for Compensating for Dispersions of Injectors - Injectors each having a piezo actuator are assigned to cylinders of an internal combustion engine. A regulator device is configured for furnishing a cylinder-specific controlled variable and a command variable to a controller whose primary manipulated variable is a variable representing an electrical power supplied to the piezo actuator during a control cycle. A manipulated variable splitting unit is provided whose input variable is a regulator-determined regulator value of the primary manipulated variable and is configured for determining a total value of the primary manipulated variable according to the regulator value. It is also configured for splitting the total value into a primary value of the primary manipulated variable and into a secondary value of a secondary manipulated variable according to a lower and/or upper threshold value of the total value.11-13-2008
20120323468FUEL INJECTION CONTROL APPARATUS - This apparatus is applied to an engine equipped with a fuel supply system that supplies pressure-increased fuel to a fuel injection valve, and performs the fuel injection from the injection valve in one combustion cycle by a multiple injection process that includes a pre-injection and a main injection that are executed with an interval therebetween. The apparatus calculates a deviation between a required value (one-dot chain line) and an actual value (solid line) regarding the end timing of the pre-injection, based on the manner of fluctuation of the fuel pressure in the fuel injection that is detected by a pressure sensor. A target main injection timing and a target pre-interval are individually set on the basis of the state of operation of the engine. Based on the deviation, the target main injection timing and the target pre-interval, the apparatus sets control target values regarding the execution period of the pre-injection.12-20-2012
20120330537FUEL INJECTION CONTROLLER AND INTERNAL COMBUSTION ENGINE - An ECU of a fuel injection controller acquires information on a load of an internal combustion engine including a fuel injection valve. Based on the load information, a switch is made between low-load-condition control, in which a main injection is performed at a timing that avoids a spray injected by a pilot injection that drifts due to a swirl effect, and high-load condition control, in which the main injection is performed at a timing that interferes with (at least partially overlaps) a spray injected by the pilot injection that drifts due to a swirl effect. In the low-load-condition control, the spray injected by a pilot injection is diffused before the occurrence of ignition to reduce smoke. In the high-load condition control, the spray injected by the main injection is caused to interfere with the spray injected by the pilot injection that contains OH radicals, to reduce smoke.12-27-2012
20120101709METHOD AND APPARATUS FOR OPERATING AN INTERNAL COMBUSTION ENGINE - In a method and the corresponding apparatus for operating an internal combustion engine with a plurality of cylinders (Z04-26-2012
20100168987INTERNAL-COMBUSTION ENGINE WITH VARIABLE ACTUATION OF THE INTAKE VALVES AND SELF-ADAPTIVE CONTROL OF THE AIR-FUEL RATIO WITH SUPERVISION OF THE CONTROL FUNCTIONS - An internal-combustion engine for motor vehicles, for example a petrol-fuelled engine or a gas-fuelled engine, is provided with an electronically controlled hydraulic system for variable actuation of the intake valves. The system of variable actuation of the intake valves is governed by an electronic control unit that is programmed for performing at least once, at the start of the life of the engine, an activity of supervision of the functions of self-adaptive control of the air-fuel ratio. The supervision activity is based upon identification of a constant ratio between a delta in the value of the crank angle used by the electronic control unit and the error in the estimation of the air-fuel ratio by the electronic control unit when the system of actuation of the intake valves operates in late-opening mode. The activity of supervision envisages that the electronic control unit detects and stores the variation in the value of the crank angle (crank-angle delta) that must be applied to the value of the crank angle used by the electronic control unit in order to reach an estimated value of the mass of air taken in that basically coincides with the real value.07-01-2010
20100131180CONTROL UNIT FOR VARIABLE VALVE TIMING MECHANISM - A stop-time target phase setting unit sets a target phase CAr for an intake valve to a target phase, which is used when an engine is stopped, in response to issuance of an engine stop command. An engine stop control unit generates a series of control commands for an engine stop process in response to issuance of the engine stop command. A motoring command unit generates a first MG control command for rotating the engine using a motor for a predetermined period Tm that is counted by a timer in response to issuance of the engine stop command. Thus, the engine idles even after fuel combustion stops. In this way, the period in which the valve phase can be changed by a VVT mechanism is increased. As a result, a valve phase when the engine stops is reliably brought to the target phase that is suitable for next engine starting.05-27-2010
20090204313SYSTEM AND METHOD OF CONTROLLING COMBUSTION PHASING IN AN INTERNAL COMBUSTION ENGINE - A system for controlling combustion phasing in an internal combustion engine is provided that includes, but is not limited to a first sensor positioned within a first variable volume combustion chamber and a vibration sensor positioned outside of the first and second variable volume combustion chambers. A first signal from the first sensor is used to control the combustion process in the first variable volume combustion chamber and a combination of the first signal from the first sensor and the second signal from the vibration sensor is used to control the combustion process in the at least one second variable volume combustion chamber.08-13-2009
20130103287METHOD FOR REGULATING A FUEL INJECTION SYSTEM OF AN INTERNAL COMBUSTION ENGINE - A method for regulating a fuel injection system of an internal combustion engine includes outputting from a control unit an instruction to start an injection process of fuel through an injection valve, wherein during a determination of a time of the outputting of the instruction to start the injection process, the control unit takes into account delays caused by the mechanical system of the injection valve. Furthermore, during the determination of the time of the outputting of the instruction to start the injection process, the control unit also takes into account a correction value which describes the fuel pressure in the injector feed line.04-25-2013
20130124070METHOD OF ASSESSING THE FUNCTIONING OF AN EGR COOLER IN AN INTERNAL COMBUSTION ENGINE - A method of assessing the functioning of an EGR cooler of an EGR system in an internal combustion engine, wherein the EGR cooler can be selectively operated in a first and a second operating condition; and wherein the engine comprises at least one cylinder equipped with a pressure sensor. The assessment of the functioning of the EGR cooler is based on the variation of a combustion characteristic value depending on cylinder pressure (CA50), upon switching of the EGR cooler from a first to a second operating condition.05-16-2013
20130131964METHOD OF CONTROLLING THE BURNT GAS FRACTION IN AN ENGINE CYLINDER WITH EGR AND IGR - The invention relates to a method of controlling an internal-combustion engine (05-23-2013
20130144513Internal Combustion Engine And Method For Controlling The Operation Of The Internal Combustion Engine - Internal combustion engine and method for controlling the operation of an internal combustion engine, wherein the method comprises: determining an operating load of the internal combustion engine, controlling the operation of the internal combustion engine on the basis of a standard control map which realizes a determined propulsion power of the internal combustion engine when the operating load of the internal combustion engine is constant and, when the operating load of the internal combustion engine increases to a predetermined extent, activating at least one control characteristic for modifying the standard control map so that the propulsion power of the internal combustion engine is increased.06-06-2013
20110288750METHOD AND APPARATUS FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE COUPLED TO A PASSIVE SELECTIVE CATALYTIC REDUCTION AFTERTREATMENT SYSTEM - A direct-injection internal combustion engine is fluidly coupled to a passive SCR system including a three-way catalytic converter upstream to an ammonia-selective catalytic reduction catalyst. Transition from an HCCI combustion mode to an SI combustion mode includes determining a preferred air/fuel ratio to achieve a minimum fuel consumption and maintain combustion stability at an acceptable level for a predetermined engine operating point during the SI combustion mode. A fuel injection timing, an engine spark timing and an engine valve lift are substantially immediately controlled from respective HCCI combustion mode settings to respective SI combustion mode settings. A transition to the preferred air/fuel ratio is coordinated with a transition of an engine valve phase from a respective HCCI combustion mode setting to a respective SI combustion mode phase setting.11-24-2011
20110320108METHOD OF CONTROLLING AUTOMOBILE-MOUNT DIESEL ENGINE AND THE AUTOMOBILE-MOUNT DIESEL ENGINE - This disclosure provides a method of controlling a diesel engine, which includes executing a premix combustion pattern fuel injection containing one or more injections at a first timing, while introducing an amount of EGR gas according to an operating condition of the engine into a cylinder, when an engine load is low, to operate in a premix combustion mode, executing a diffusion combustion pattern fuel injection containing one or more injections at a second timing that is later than the first timing, when the engine load is high, to operate in a diffusion combustion mode, and executing a diffusion combustion pattern fuel injection at a third timing that is later than the second timing, while introducing the amount of EGR gas according to the operating condition of the engine into the cylinder, when shifting from the diffusion combustion mode to the premix combustion mode with a decrease in engine load.12-29-2011
20130211694METHOD AND SYSTEM FOR CONTROL OF AN INTERNALCOMBUSTION ENGINE BASED ON ENGINE CRANK ANGLE - A method for control of an internal combustion engine includes generating, with a microelectromechanical system (MEMS) accelerometer, an acceleration signal representing vibrations of the internal combustion engine. An engine crank angle signal is generated based on the acceleration signal. The engine crank angle signal is compared with a target value. The internal combustion engine is adjusted based upon the comparing.08-15-2013

Patent applications in class Controlling timing