With Fuel Injection Control Patents (Class 123/406.47)
  • Patent number: 10400738
    Abstract: It is an object of the present invention to provide a control device for an internal combustion engine capable of appropriately controlling compression ratio and ignition timing before the target compression ratio that is set according to humidity is attained.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: September 3, 2019
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Kazuhiro Oryoji, Yoshihiko Akagi
  • Patent number: 10197000
    Abstract: Methods and systems are provided for diagnosing a humidity sensor positioned in an intake system of a vehicle engine system. In one example, a method comprises rotating an engine unfueled in reverse and injecting a fluid into an exhaust system of the engine system, to draw the fluid into the intake system, where a humidity sensor output signal greater than a baseline output signal by a predetermined threshold is indicative of a humidity sensor that is functioning as desired. In this way, a humidity sensor may be periodically rationalized which may prolong engine lifetime by ensuring the engine is operating at optimal parameters.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: February 5, 2019
    Assignee: Ford Global Technologies, LLC
    Inventor: Aed M. Dudar
  • Patent number: 10174705
    Abstract: A control device of an internal combustion engine includes an estimating means adapted to estimate an amount of a mixture of fuel and oil dispersing according to a movement of a piston within a cylinder; and a limiting means adapted to limit an upper limit torque (UT) of an internal combustion engine according to the estimated amount of the mixture.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: January 8, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Masaharu Kassai, Kentarou Yamano
  • Patent number: 10167746
    Abstract: A method of phasing the opening and closing of internal combustion engine intake and exhaust valves relative to the rotation of the crankshaft is based upon changes in engine speed, engine load and ambient relative humidity. During certain conditions of higher humidity, in order to maintain good combustion stability and thus overall engine operation, it is necessary to reduce intake and exhaust valve overlap by adjusting the phase of the intake and exhaust camshafts. This is achieved by utilizing a set of cam position reference values and constraints based upon engine speed, engine load and humidity that are contained in lookup tables that adjust and limit cam position and valve overlap. Generally speaking, in order to maintain optimum engine performance, intake and exhaust valve overlap is reduced with higher ambient humidity and vice versa.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: January 1, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Christopher E. Whitney, David N. Hayden, Nicola Pisu, Stephen P. Levijoki
  • Patent number: 10018136
    Abstract: A method for controlling a marine engine for propelling a marine vessel includes receiving user input as a user input device to control acceleration of a marine vessel, detecting a rapid acceleration command based on the user input, and determining an advanced spark timing based on at least one of engine speed and engine load, wherein the advanced spark timing adjusts a base spark time by a spark advance offset. A fuel increase is then determined based on the spark advance offset, and then an increased fuel injection amount is determined by increasing a base fuel injection amount by the fuel increase. Spark and fuel delivery are then controlled for one or more cylinders of the marine engine based on the advanced spark timing and the increased fuel injection amount.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: July 10, 2018
    Assignee: Brunswick Corporation
    Inventors: Steven M. Anschuetz, Michael A. Purdy, Robert Raymond Osthelder, David J. Hilbert
  • Patent number: 9970405
    Abstract: A control methodology and apparatus for an engine suitable for use in capacitor discharge ignition systems for internal combustion engines or brushless DC motors is provided, which make use of a simple logic block to determine for instance an ignition timing advance angle or duty cycle signal based on actual engine speed versus engine control parameter data stored in a table, which is a read-only memory, preferably configurable. To minimize memory space, a small number of values of engine control parameter versus engine speed are stored in the table and the logic block determines the required engine control signal for a measured value of engine speed by an interpolation process, preferably linear interpolation.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: May 15, 2018
    Assignee: NXP USA, Inc.
    Inventors: Michael Robert Garrard, William E. Edwards, John Matthew Hall
  • Patent number: 9932915
    Abstract: A method for operating an internal combustion engine in an idle mode, in which an ignition angle and/or an air quantity of the internal combustion engine is influenced and/or is modified as a function of an idle rotation speed of the internal combustion engine. The ignition angle and/or the air quantity and/or a fuel quantity for at least one combustion chamber of the internal combustion engine is modified as a function of at least one variable characterizing a combustion event in the combustion chamber.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: April 3, 2018
    Assignee: Robert Bosch GmbH
    Inventors: David Gaenzle, Wolfgang Fischer, Laurent Nack
  • Patent number: 9771917
    Abstract: A system, method, and engine control module for energy ignition management of a combustion engine. The method may be performed by the system or the engine control module. The method includes determining operating conditions of the combustion engine, setting ignition energy characteristics for a dedicated EGR cylinder and a non-dedicated EGR cylinder based on the operating conditions. The ignition energy characteristics include at least one of magnitude of energy, current, voltage, and ignition energy duration. At least one characteristic of the ignition energy characteristics for the non-dedicated EGR cylinder is different than a corresponding characteristic for the dedicated EGR cylinder. The method also includes energizing ignition aid plugs based on the ignition energy characteristics.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: September 26, 2017
    Assignee: Cummins Inc.
    Inventors: Samuel C. Geckler, David Stroh, Steven J. Kolhouse
  • Patent number: 9752517
    Abstract: Methods and systems are described for monitoring air/fuel imbalance in cylinders of an engine. In one example method, air/fuel ratio of a cylinder is modulated to produce a series of rich, lean, and stoichiometric conditions in the cylinder and corresponding crank accelerations are measured to calculate a peak function indicating an air/fuel ratio in the cylinder. The peak function is calculated over a plurality of modulations to provide a more reliable computation of the air/fuel ratio of the cylinder and its deviation from a pre-determined air/fuel ratio.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: September 5, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: John Eric Rollinger, Robert Roy Jentz, Michael Igor Kluzner
  • Patent number: 9435284
    Abstract: An internal combustion engine includes an electronic controller programmed to determine, for at least one combustion event in a combustion chamber, a theoretical polytropic constant, a measured polytropic constant, and a difference between the theoretical polytropic constant and the measured polytropic constant. The electronic controller is further programmed to calculate an adjusted pressure signal based on the pressure signal and the difference such that the adjusted pressure signal compensates for changes to an accuracy of the pressure sensor over time.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: September 6, 2016
    Assignee: Caterpillar Inc.
    Inventors: Mary L. Yeager, Francis L. Clark, Brandon Gregory, Parag Mehresh
  • Patent number: 9435287
    Abstract: Methods and systems are described for controlling fuel injection in an engine equipped with a dual injector system including a port injector and a direct injector. A ratio of port injected fuel to direct injected fuel is adjusted based at least on intake valve temperature. The proportion of fuel port injected into a cylinder is increased as the intake valve temperature for the given cylinder increases to improve fuel vaporization in the intake port.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: September 6, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Eric Krengel, Joseph Lyle Thomas, Todd Anthony Rumpsa, Michael Howard Shelby
  • Patent number: 9416738
    Abstract: A control device for an internal combustion engine is provided, which can carry out favorable injection amount feedback control even when a fuel property changes. A cylinder internal pressure sensor (16) that detects a cylinder internal pressure is included. A cylinder internal fresh air amount is calculated based on the cylinder internal pressure detected by the cylinder internal pressure sensor (16) (100). Based on the cylinder internal pressure detected by the cylinder internal pressure sensor (16), an actual heating value is calculated (120). From the calculated cylinder internal fresh air amount, a target heating value in a predetermined excess air ratio is calculated (150). A comparison value of the actual heating value and the target heating value is fed back to a fuel injection amount so that the calculated actual heating value corresponds to the target heating value (160, 170).
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: August 16, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yusuke Suzuki, Soichiro Tanaka
  • Patent number: 9399962
    Abstract: A method for determining cylinder blow-through air via engine volumetric efficiency is disclosed. In one example, the method provides a way to adjust cylinder blow-through to promote and control a reaction in an exhaust after treatment device. The approach may simplify cylinder blow-through calculations and improve engine emissions via providing improved control of constituents reaching an exhaust after treatment device.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: July 26, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Dave G. Hagner, Mrdjan J. Jankovic, De-Shiou Chen, Amey Y. Karnik
  • Patent number: 9371786
    Abstract: An engine system may include a fuel and air supply circuit and an exhaust circuit, a temperature sensor mounted on an exterior of the engine and an oxygen sensor located in the exhaust circuit. The fuel and air supply circuit may include a throttle body mounted on the engine and having a throttle valve to control the flow rate of air delivered to the engine, a fuel injector carried by the throttle body to deliver fuel to the engine and a fuel rail carried by at least one of the throttle body and the fuel injector and having an input to receive a supply of fuel and an outlet through which fuel is routed to the fuel injector. An engine control unit may be communicated with these components to control the fuel and air mixture provided to the engine as a function of the temperature and oxygen sensor outputs.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: June 21, 2016
    Assignee: WALBRO LLC
    Inventors: Massimo Casoni, William E. Galka, Bradley J. Roche, David L. Speirs, Mark S. Swanson, Eric G. Zbytowski
  • Patent number: 9279381
    Abstract: To prevent particle emissions, the start of injection of an internal combustion engine is controlled as a function of a detected dynamics of an operating parameter of the internal combustion engine. The dynamics is detected by comparing the temporal change of the operating parameter to a threshold value. The control may be carried out such that, in particular, a value of the start of injection, determined with the aid of a regulation, is frozen for a specific holding period following the detection of the dynamics.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: March 8, 2016
    Assignee: VOLKSWAGEN AG
    Inventors: Eike Bunsen, Rene Fink, Kay Schintzel, Matthias Schultalbers, Olaf Magnor
  • Patent number: 9199634
    Abstract: A method of operating a vehicle powertrain system where the powertrain system includes a fuel controlled engine, an electric motor, and a battery, the fuel, controlled engine and the electric motor capable of powering the powertrain system. The powertrain system is capable of operating in a plurality of operational modes. The method includes detecting a current value representative of a current flowing through a portion of the battery, calculating a first value representative of the current over a predetermined amount of time, and de-rating at least one of the plurality of operational modes in response to the calculated first value.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: December 1, 2015
    Assignee: Eaton Corporation
    Inventors: Thomas R. Connolly, Xiaosong Kang, George A. Brunemann
  • Patent number: 9109526
    Abstract: A control unit is provided for fuel supply regulation during a cold-running phase of an internal combustion engine, that includes, but is not limited to an input port for inputting a combustion signal about the presence of a rich or lean combustion of a fuel mixture in the internal combustion engine, a P-element for providing a P-manipulated variable, which sets a fuel reduction upon the presence of a rich combustion and sets a fuel increase upon the presence of a lean combustion, an I-element for providing an I-manipulated variable, which sets a fuel increase, and an output port for controlling a fuel supply, the P-manipulated variable and the I-manipulated variable substantially offsetting one another during the cold-running phase upon the presence of a rich combustion in the stationary state.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: August 18, 2015
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Martin Giencke
  • Publication number: 20150144102
    Abstract: A system according to the principles of the present disclosure includes an ignition timing determination module, an injection timing determination module, a spark control module, and a fuel control module. The ignition timing determination module determines a first crank angle. The injection timing determination module selectively determines a second crank angle based on the first crank angle. The spark control module controls a spark plug to generate spark in a cylinder of an engine at the first crank angle. The fuel control module controls a fuel injector to deliver fuel to the cylinder at the second crank angle.
    Type: Application
    Filed: January 10, 2014
    Publication date: May 28, 2015
    Applicant: GM Global Technology Operations LLC
    Inventors: JONATHAN T. SHIBATA, Michael J. Lucido
  • Publication number: 20150101564
    Abstract: Methods and systems are provided for correcting an EGR rate determined based on an intake manifold oxygen sensor based on an air-fuel ratio of EGR. The output of the sensor is corrected to compensate for extra fuel in rich EGR or extra air in lean EGR and used to reliably estimate the EGR rate. One or more engine operating parameters are adjusted based on an uncorrected output of the sensor.
    Type: Application
    Filed: October 11, 2013
    Publication date: April 16, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Timothy Joseph Clark, James Alfred Hilditch, Matthew John Gerhart
  • Patent number: 8955492
    Abstract: A direct-injection internal combustion engine includes an intake camshaft with a low-lift intake cam and a high-lift intake cam, a variable lift control for selectively operating an intake valve in one of a low-lift intake valve profile with the low-lift intake cam and a high-lift intake valve profile with the high-lift intake cam, a variable cam phase control operative on the intake camshaft for simultaneously controlling the phase of the low-lift intake cam and the high-lift intake cam, an ignition spark control, a fuel injection control, an exhaust gas recirculation control, and an intake throttle control.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: February 17, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Nicole Wermuth, Paul M. Najt, Hanho Yun
  • Patent number: 8899209
    Abstract: Methods and systems for adjusting a plurality of fuel injections supplied to a cylinder during a cycle of the cylinder are described. In one example, fuel amounts are moved between fuel injections in response to combustion phase. Engine feedgas hydrocarbons and/or carbonaceous particulate matter may be reduced when cetane of combusted fuel changes.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: December 2, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Eric Kurtz, Douglas Kuhel
  • Publication number: 20140331968
    Abstract: Method for cold starting an internal combustion engine operating with an ethanol fuel, with ignition controlled by a control unit including a basic ignition advance map determined for a given engine, includes the following steps applied to at least one combustion chamber in contact with a piston connected to a drive shaft: determining the engine temperature; rotating the drive shaft; phasing the engine; ensuring the fuel pressure exceeds a determined threshold for injection; injecting fuel for a first operational engine cycle after phasing; below a determined engine temperature, increasing, in the first operational cycle, the advance of the first ignition point before the compression top dead centre for gases in the cylinder, with respect to the advance map, by a value between 21° and 50°; controlling a first ignition point according to advance map based on the cycle following the first cycle.
    Type: Application
    Filed: May 1, 2014
    Publication date: November 13, 2014
    Applicants: CONTINENTAL AUTOMOTIVE FRANCE, CONTINENTAL AUTOMOTIVE GmbH
    Inventor: Claude COURTIEL
  • Patent number: 8851050
    Abstract: When preignition is detected, and an engine speed is less than a predetermined value (Nex), an air/fuel ratio is enriched (S22), and then, when the preignition is detected even after enriching the air/fuel ratio, an effective compression ratio of an engine is reduced (S23), whereafter, when the preignition is detected even after reducing the effective compression ratio, a part of injection fuel is injected in a compression stroke (S24). On the other hand, when preignition is detected, and an engine speed is equal to or greater than the predetermined value (Nex), the air/fuel ratio is enriched (S31), and then, when the preignition is detected even after enriching the air/fuel ratio, a part of the fuel is injected in the compression stroke (S32). This makes it possible to effectively suppress the occurrence of preignition while maximally avoiding deterioration in emission performance and lowering in engine power output.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: October 7, 2014
    Assignee: Mazda Motor Corporation
    Inventors: Kouji Shishime, Naoya Matsuo, Mikinori Ohashi
  • Publication number: 20140297159
    Abstract: Methods and systems are provided for controlling exhaust emissions by adjusting an injection profile for different fuels injected into an engine cylinder from different fuel injectors during engine start and crank. By splitting fuel injection during start and cranking so that fuel of lower alcohol content is port injected and fuel of higher alcohol content is direct injected as one or multiple injections, the soot load of the engine can be reduced and fuel economy can be improved.
    Type: Application
    Filed: April 1, 2013
    Publication date: October 2, 2014
    Applicant: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Steven Schwochert, Peter C. Moilanen, Eric Krengel, Todd Anthony Rumpsa
  • Publication number: 20140297162
    Abstract: Methods and systems are provided for controlling exhaust emissions by adjusting an injection profile for fuel injected into an engine cylinder from a plurality of fuel injectors during engine start and crank. By splitting injection of fuel during start so that a portion of fuel is port injected and a remaining portion is direct injected as one or multiple injections, the soot load of the engine can be reduced and fuel economy can be improved. The injections are adjusted based on the alcohol content of the injected fuel to take advantage of the charge cooling properties of the fuel.
    Type: Application
    Filed: April 1, 2013
    Publication date: October 2, 2014
    Applicant: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Steven Schwochert, Peter C. Moilanen, Eric Krengel
  • Patent number: 8812214
    Abstract: An internal combustion engine control device the present invention provides is a control device that can realize both of request torque and a request A/F for each of cylinder groups with high precision, even when the request A/F differs at each of the cylinder groups. The present control device sets a reference A/F within a range from the leanest A/F to the richest A/F out of the request A/Fs to the respective cylinder groups. The present control device calculates a target air quantity for realizing the request torque under the reference A/F, based on data that defines a relation between engine output torque and an air quantity in relation to an A/F. The present control device controls a throttle opening in accordance with the target air quantity, and controls fuel injection amounts of the respective cylinders in accordance with the request A/F s to the respective cylinder groups.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: August 19, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shuntaro Okazaki, Satoshi Yoshizaki, Kaoru Shokatsu, Masashi Shibayama, Hajime Kawakami
  • Patent number: 8775055
    Abstract: 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.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: July 8, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Chris Paul Glugla, Michael Mancini
  • Patent number: 8739762
    Abstract: An engine controlling apparatus includes an idle speed setting unit that sets a target idle speed upon idling of an engine mounted on a vehicle, and a target torque setting unit that sets a target torque in response to the target idle speed. The apparatus further includes an ignition timing controlling unit that controls an ignition timing and an intake air amount controlling unit that controls an intake air amount, and a steering angle detection unit that detects a steering angle. The apparatus further includes a torque value setting unit that sets a torque value in response to the steering angle. The intake air amount controlling unit controls the intake air amount in response to both the target torque and the torque value. The ignition timing controlling unit controls the ignition timing so that the engine outputs the target torque.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: June 3, 2014
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Toshiyuki Miyata, Katsunori Ueda, Hitoshi Toda, Koji Shibata
  • Patent number: 8720416
    Abstract: The disclosure provides a method of detecting and inhibiting an abnormal combustion event in an internal combustion engine, comprising operating the internal combustion engine to produce exhaust gas from the cylinder at a break mean effective pressure greater than or equal to 10 bars at a speed less than or equal to 2,000 revolutions per minute; monitoring the exhaust gas from the cylinder with an oxygen sensor while the internal combustion engine undergoes a pre-ignition combustion event; obtaining an output from the oxygen sensor, the output from the oxygen sensor providing an indicator of the pre-ignition combustion event; and adjusting at least one operating parameter of the internal combustion engine in response to the output of the oxygen sensor, wherein the at least one operating parameter is adjusted to inhibit an occurrence of a subsequent pre-ignition combustion event.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: May 13, 2014
    Assignee: Southwest Research Institute
    Inventors: Manfred Amann, Terrence F. Alger, II
  • Publication number: 20140069382
    Abstract: A spark-ignition direct injection engine is provided. The engine includes an engine body, a fuel injection valve, a fuel pressure setting mechanism, an ignition plug, and a controller. The controller switches between a compression-ignition mode where the engine body is operated to perform compression-ignition combustion and a spark-ignition mode where the engine body is operated to perform spark-ignition combustion. Immediately after switching from the spark-ignition mode to the compression-ignition mode, the controller operates the engine body in a compression-ignition initial mode where the fuel pressure is set to be 30 MPa or above and the fuel injection valve is controlled to perform the fuel injection in a period from a late stage of the compression stroke to an early stage of the expansion stroke so that the gas mixture self-ignites to combust.
    Type: Application
    Filed: August 21, 2013
    Publication date: March 13, 2014
    Applicant: Mazda Motor Corporation
    Inventors: Kouhei Iwai, Masahisa Yamakawa, Junichi Taga, Shigeru Nakagawa, Saori Mizuno, Keiji Araki
  • Publication number: 20140034013
    Abstract: Methods and systems are provided for improving fuel usage while addressing knock by adjusting the use of spark retard and direct injection of a knock control fluid based on engine operating conditions and the composition of the injected fluid. One or more engine parameters, such as EGR, VCT, boost, throttle position, and CMCV, are coordinated with the direct injection to reduce torque and EGR transients.
    Type: Application
    Filed: October 8, 2013
    Publication date: February 6, 2014
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventor: Thomas G. Leone
  • Publication number: 20140007839
    Abstract: An engine system includes an engine, an air intake passage to supply air to the engine, a throttle valve provided in the air intake passage to adjust a throttle opening degree that is an opening degree of the air intake passage, a bypass passage to supply air to the engine while bypassing the throttle valve, an on/off valve provided in the bypass passage to open and close the bypass passage, and a control unit that performs ignition lag control of the engine to control an output of the engine when the on/off valve is in an open state.
    Type: Application
    Filed: June 27, 2013
    Publication date: January 9, 2014
    Inventor: Hiroshi INOUE
  • Patent number: 8543315
    Abstract: 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.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: September 24, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Christopher P. Glugla, Michael A. Mancini
  • Patent number: 8522749
    Abstract: Methods and systems are provided for improving fluid usage while addressing knock by adjusting the use of spark retard and direct injection of a fluid based on engine operating conditions and the composition of the injected fluid. One or more engine parameters, such as EGR, VCT, boost, throttle position, are coordinated with the direct injection to reduce torque and EGR transients.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: September 3, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, John Nelson, Thomas G. Leone
  • Patent number: 8521399
    Abstract: A method for reducing particulate matter emitted by an engine is disclosed. In one example, the start of fuel injection timing is adjusted in response to a change in engine operating conditions. In particular, start of injection timing may be advanced and then retarded to promote fuel vaporization.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: August 27, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Mark W. Peters, Eric Krengel
  • Patent number: 8504276
    Abstract: Embodiments for controlling a gas turbine engine to minimize combustion dynamics and emissions are disclosed. Methods and an apparatus are provided for controlling the gas turbine engine where a compressor inlet temperature is measured and a turbine reference temperature is calculated in real-time and utilized to determine the most-efficient fuel splits and operating conditions for each of the fuel circuits. The fuel flow for the fuel circuits are then adjusted according to the identified fuel split.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: August 6, 2013
    Assignee: Power Systems Mfg., LLC
    Inventors: Vincent C. Martling, Peter So, Zhenhua Xiao, Plazi Ricklin
  • Patent number: 8495984
    Abstract: An engine control system for a vehicle includes a variable displacement module that deactivates N of M cylinders of an engine during a fuel management mode. N is an integer and M is an integer greater than 1. A spark control module generates a spark timing signal for the N cylinders based on a pre-dwell time and a fuel management dwell modifier during the fuel management mode. The spark control module reduces dwell time of the N cylinders during the fuel management mode based on the fuel management dwell modifier.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: July 30, 2013
    Inventors: Robert W. Riegel, Yujiro Suwa, Ronald M. Wozniak, Anthony L. Marks
  • Publication number: 20130160739
    Abstract: Because opening of a flow enhancement valve affects not only a flow but also a flow rate, when the opening of the flow enhancement valve is transiently changed, if an ignition correction control is conducted on the basis of a relationship obtained in a steady operation state of the flow enhancement valve opening and the ignition timing, there occurs such a drawback that the ignition timing is set to a retard side or an advance side of the optimal point.
    Type: Application
    Filed: September 5, 2011
    Publication date: June 27, 2013
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Kunihiko Suzuki, Seiji Asano
  • Patent number: 8457866
    Abstract: An ignition timing control system for an internal combustion engine is provided to ensure stable combustion without causing misfire or knocking, by properly setting ignition timing in the compression stroke injection mode, thereby improving drivability. The ignition timing control system for the engine, that directly injects fuel into the cylinders and that is operated by switching the fuel injection mode between an intake stroke injection mode and a compression stroke injection mode, includes a fuel injection timing-setting device for setting a fuel injection timing according to an engine speed of the engine and a fuel injection amount, a basic value-setting device for setting a basic value of ignition timing according to the engine speed of the engine and the fuel injection timing, and an ignition timing-setting device for setting ignition timing in the compression stroke injection mode by correcting the basic value according to a detected air-fuel ratio.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: June 4, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Chiho Itoga, Toru Kitamura, Toshinari Shinohara
  • Patent number: 8447498
    Abstract: Even when an engine is started in various combustion states, an excessive increase in engine speed at the start of the engine is suppressed without an influence of the combustion states and with an excellent responsiveness. Ignition timing (or a combustion injection amount) at the start of an internal combustion engine is corrected in accordance with a crank angle cycle ratio which is a ratio of a combustion period crank angle cycle and a reference crank angle cycle.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: May 21, 2013
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Masahiro Toyohara, Minoru Okubo, Takao Miyake, Tomohiro Ohisa
  • Patent number: 8439011
    Abstract: Methods and systems are provided for addressing cylinder pre-ignition by adjusting a spray angle of fuel injected into a cylinder responsive to an indication of pre-ignition. A spray pattern of fuel injected in the cylinder is varied based on a cylinder pre-ignition count to reduce cylinder wall impingement of injected fuel while improving air-fuel mixing in the cylinder.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: May 14, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Chris Paul Glugla, Robert Sarow Baskins
  • Patent number: 8434455
    Abstract: A control system for an internal combustion engine performs output control so that an engine output coincides with demand output by changing intake air flow rate or ignition timing of the engine. Output reduction control, wherein engine output is reduced, is performed when the demand output decreases. A retard limit output is calculated, and a retard limit intake air flow rate is calculated when the demand output is less than the retard limit output. The engine output is made to coincide with the demand output by retarding the ignition timing when the demand output is equal or greater than the retard limit output. When the demand output is less than the retard limit output, the ignition timing is retard to the limit and the intake air flow rate is controlled so as to coincide with the retard limit intake air flow rate.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: May 7, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masahiro Takeuchi, Sinobu Ochiai
  • Patent number: 8428848
    Abstract: 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.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: April 23, 2013
    Inventor: Halim G. Santoso
  • Patent number: 8418674
    Abstract: A control device of a diesel engine, including an acceleration detector including an acceleration sensor, the acceleration sensor being attached to an engine body that defines a combustion chamber, the acceleration detector configured to output a vibration acceleration, an integrator configured to integrate values corresponding to amplitudes of the vibration acceleration from a predetermined integration start timing that is at least before an ignition timing, a comparison unit configured to compare an integration value of the integrator with a predetermined ignition timing judgment level, and a real ignition timing judgment unit configured to judge a real ignition timing on the basis of a reach timing, at which the integration value has reached the ignition timing judgment level.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: April 16, 2013
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kousuke Yasuhara, Yasutaka Ishibashi, Naoki Nagashima
  • Patent number: 8355858
    Abstract: Various methods are described for controlling engine operation for an engine having a turbocharger and direct injection. One example method includes performing a first and second injection during a cylinder cycle, the first injection generating a lean combustion and the second injection exiting the cylinder unburned into the exhaust upstream of a turbine of the turbocharger.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: January 15, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Tobias John Pallett, Eric Matthew Storhok, Gopichandra Surnilla
  • Patent number: 8352160
    Abstract: Engine surge includes oscillations in engine torque resulting in bucking or jerking motion of a vehicle that may degrade driver experience. The present application relates to increasing reformate entering an example engine cylinder in response to engine surge.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: January 8, 2013
    Assignee: Ford Global Technologies, LLC
    Inventor: Thomas G. Leone
  • Patent number: 8347852
    Abstract: 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.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: January 8, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Chris Paul Glugla, Michael Mancini
  • Patent number: 8352166
    Abstract: Systems and methods of operating an engine, the engine including an injector configured to directly inject fuel into an engine cylinder. One example method comprises, during an engine cold start, performing compression direct fuel injection, and retarding a timing of the compression injection as a fuel alcohol content of the fuel increases.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: January 8, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, David Karl Bidner, Peter Charles Moilanen
  • Patent number: 8332127
    Abstract: A system comprises a torque control module, a combustion prediction module, and a fuel control module. The torque control module sets spark timing of an engine to produce a drive torque and determines an amount of delay to add to the spark timing to decrease the drive torque by a predetermined torque. The combustion prediction module predicts whether a single injection of fuel will combust in a cylinder of the engine when the amount of delay is added to the spark timing. The fuel control module actuates a plurality of separate injections of fuel into the cylinder when the combustion prediction module predicts that the single injection of fuel will not combust.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: December 11, 2012
    Inventors: Jesse M. Gwidt, Matthew Pruski
  • Patent number: 8316824
    Abstract: Control apparatus for an internal combustion engine including: a second knock detection unit for detecting occurrence of a second knock due to an effective compression ratio when ignition timing is on a retard side of a predetermined value in the case where a first knock is detected; a second knock suppression unit for suppressing the second knock when the second knock is detected; a first abnormal ignition detection means for detecting occurrence of first abnormal ignition due to the pre-ignition or the post-ignition when a knock intensity of the second knock is equal to or larger than a predetermined value; and a first abnormal ignition suppression unit for suppressing the first abnormal ignition by performing fuel control for the internal combustion engine when the first abnormal ignition is detected.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: November 27, 2012
    Assignee: Mazda Motor Corporation
    Inventors: Hideki Hagari, Tomokazu Makino, Keitaro Ezumi, Tomokuni Kusunoki