With Coordinated Engine Fuel Control Patents (Class 60/601)
  • Patent number: 9816453
    Abstract: A control method includes an electronic waste gate actuator (EWGA) and a waste gate valve, connected to each other through a rod. The control method includes an operation condition determination step for determining whether an engine is in cold operation or hot operation by measuring engine soak time and initial coolant temperature when the engine starts and by comparing them with a predetermined reference soak time and reference coolant temperature. The control method also includes a cold control step for setting cold operation reference voltage, performing cold operation learning, and applying cold operation learning data to the cold operation reference voltage, when the engine is in cold operation. The control method further includes a hot control step for setting hot operation reference voltage, performing hot operation learning, and applying hot operation learning data to the hot operation reference voltage, when the engine is in hot operation.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: November 14, 2017
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Young Min Kim, Hyun Kim, Deok Ryol Kim
  • Patent number: 9777623
    Abstract: When opening or closing an exhaust cut valve in accordance with an operation range of an engine and performing feedback control for an opening degree of a wastegate valve such that a target supercharging pressure is achieved in each of an open operation range where the exhaust cut valve is opened and a closed operation range where the exhaust cut valve is closed, a failure of the exhaust cut valve can be accurately determined. Whether or not an abnormal state occurs is determined in each range. In the abnormal state, although feedback control for closing the wastegate valve is performed, the actual supercharging pressure is lower than the target supercharging pressure, and a deviation between the actual supercharging pressure and the target supercharging pressure is maintained at not less than a predetermined value. Further, whether the exhaust cut valve is normal or in failure is determined.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: October 3, 2017
    Assignee: Mazda Motor Corporation
    Inventor: Takafumi Nishio
  • Patent number: 9745914
    Abstract: An object is to improve the combustion condition in an internal combustion engine equipped with a supercharger and performing diesel combustion using fuel having a relatively high self-ignition temperature in an operation state in which the engine load is increased or decreased. A control apparatus performs first injection during the compression stroke, causes spray guide combustion to occur, and starts to perform second injection at such a second injection time that combustion of injected fuel is started by flame generated by the spray guide combustion, thereby causing self-ignition and diffusion combustion of fuel to occur.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: August 29, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuta Ochi, Toshimi Kashiwagura
  • Patent number: 9546614
    Abstract: A fuel property detection apparatus detects fuel properties based on cetane number and density of a tested fuel. Tested fuel is examined in terms of ignition timing, and, when the tested fuel has an ignition timing earlier than a threshold, the tested fuel is identified as having a standard cetane number. When the tested fuel has an ignition timing later than the threshold, the tested fuel is identified as having a low cetane number. An advance angle of the ignition timing is increased for yielding a greater ignition timing difference between a light property fuel and a heavy property fuel, and, in such manner, the difference therebetween is detected. When an advancement of the ignition timing is greater than a threshold, the fuel property is identified as heavy, and, when an advancement of the ignition timing is smaller than the threshold, the fuel property is identified as light.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: January 17, 2017
    Assignee: DENSO CORPORATION
    Inventors: Hideo Naruse, Makoto Mashida, Koji Ishizuka, Jun Kawamura, Masayuki Suzuki
  • Patent number: 9523309
    Abstract: A control method for a turbocharger system may include a first intake line supplying outdoor air to an intake manifold, a turbocharger, a second intake line supplying fresh air to the compressor; a third intake line connecting the compressor and the first intake line; a throttle valve controlling a flow of air supplied from the first intake line and the third intake line; an intake bypass valve controlling a flow of air that flows in the first intake line; a first exhaust line; a second exhaust line; an exhaust bypass valve controlling a flow of the exhaust gas discharged from the first exhaust line; and a controller controlling opening levels of the intake bypass valve, the exhaust bypass valve, and the throttle valve according to a driving condition of a vehicle.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: December 20, 2016
    Assignee: Hyundai Motor Company
    Inventors: Yoonjoo Kim, Joowon Lee, Hyunjun Lim, Nahmroh Joo, Donghee Han, Iljoong Hwang, Jongil Park
  • Patent number: 9243551
    Abstract: A method for operation of an engine including a turbocharger system is provided. The method includes adjusting turbocharger rotational acceleration or deceleration in response to one or more resonant frequencies. Additionally in some examples, the method may further include increasing turbocharger rotation in response to one or more resonant frequencies during a first condition, and increasing turbocharger deceleration in response to one or more resonant frequencies during a second condition, the second condition different from the first condition. In this way, it is possible to enhance the useful life cycle of the turbocharger and associated engine by limiting the operating time in a resonant frequency band.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: January 26, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Harold Huimin Sun, Yong Shu, Dave Hanna, Tim Schram
  • Patent number: 9010116
    Abstract: A vacuum source arbitration system is disclosed. In one example, vacuum is supplied to a vacuum reservoir via an ejector during a first condition, and vacuum is supplied to the vacuum reservoir via an engine intake manifold during a second condition. The approach may provide a desired level of vacuum in a reservoir while reducing engine fuel consumption.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: April 21, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Ralph Wayne Cunningham, Moses Alexander Fridman, Todd Anthony Rumpsa, Mansour Beshay, Clifford E. Maki, Ross Dykstra Pursifull
  • Patent number: 9010115
    Abstract: A vacuum source including an ejector is disclosed. In one example, vacuum is supplied via the ejector when a turbocharger has excess boost capacity. The approach can prioritize how excess boost may be used to provide vacuum.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: April 21, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Ross Dykstra Pursifull, Joseph Norman Ulrey
  • Patent number: 8978378
    Abstract: An approach for controlling a turbocharger bypass valve is disclosed. In one example, the turbocharger bypass valve is opened during engine cold start conditions to reduce turbocharger speed. The approach may reduce noise produced by the turbocharger during engine start and warm-up.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: March 17, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Robert Andrew Wade, Fadi Maroun Naddaf, Joseph P. Whitehead, Jason Eugene Devries
  • Publication number: 20140338326
    Abstract: An internal combustion engine control device that acquires the temperature of a catalyst disposed in an exhaust path, and detects an abnormal combustion that has occurred in a combustion chamber. The control device includes a gas control unit, which controls the amount of intake gas flowing into the combustion chamber and the temperature of exhaust gas flowing into the catalyst, and a fuel injection amount control unit, which controls the amount of fuel injected into the combustion chamber. The control device also includes an abnormal combustion inhibition mode selection unit that chooses a first mode, a second mode, or a third mode in accordance with the catalyst temperature when the abnormal combustion is detected. The first mode causes the gas control unit to suppress the occurrence of the abnormal combustion while raising the catalyst temperature.
    Type: Application
    Filed: February 1, 2012
    Publication date: November 20, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroyuki Sugihara
  • Patent number: 8850811
    Abstract: Systems and methods for determining compression device degradation of an engine of a rail vehicle are provided. In one embodiment, a rail vehicle system includes an engine, an air-intake passage coupled to the engine, a compression device including a compressor positioned along the air-intake passage, a barometric air pressure sensor for measuring a barometric air pressure upstream of the compressor, a manifold air pressure sensor for measuring a manifold air pressure downstream of the compressor, and a controller configured to adjust a rail vehicle operating parameter responsive to a determination of compression device degradation based on a negative pressure differential between the manifold air pressure and the barometric air pressure during a designated operating condition.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: October 7, 2014
    Assignee: General Electric Company
    Inventors: Paul Gerard Nistler, James Robert Mischler, Luke Henry, William Gray
  • Patent number: 8713937
    Abstract: Methods and systems are provided for a boosted engine having a split intake system coupled to a split exhaust system. Aircharges of differing composition, pressure, and temperature may be delivered to the engine through the split intake system at different points of an engine cycle. In this way, boost and EGR benefits may be extended.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: May 6, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Ross Dykstra Pursifull, Joseph Norman Ulrey
  • Patent number: 8713935
    Abstract: A control system for a turbo charged natural gas engine. A butterfly valve used for fuel control upstream of a carburetor provides non-linear flow response during opening and closing and a flow compensator compensates for the non-linear response. A throttle valve position sensor acts in association with a controller which compares the throttle valve position signal with a predetermined set point and thereby opens or closes the waste gate of the turbo charger which affects oxygen content in the exhaust. A compensator for a throttle valve used with electronic engine controllers is also provided.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: May 6, 2014
    Assignee: REM Technology, Inc.
    Inventors: Howard Leigh Malm, Wade Larry Mowat
  • Patent number: 8683800
    Abstract: A vacuum source arbitration system is disclosed. In one example, vacuum is supplied to a vacuum reservoir via an ejector during a first condition, and vacuum is supplied to the vacuum reservoir via an engine intake manifold during a second condition. The approach may provide a desired level of vacuum in a reservoir while reducing engine fuel consumption.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: April 1, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Ralph Wayne Cunningham, Moses Alexander Fridman, Todd Anthony Rumpsa, Mansour Beshay, Cliff Maki, Ross Dykstra Pursifull
  • Patent number: 8607564
    Abstract: An automobile-mount diesel engine with a turbocharger is provided, which includes an engine body with the turbocharger, the engine body being mounted in the automobile and supplied with fuel containing diesel fuel as its main component, a fuel injection valve arranged in the engine body so as to be oriented toward a cylinder of the engine body and for directly injecting the fuel into the cylinder, an injection control module for controlling a mode of injecting the fuel into the cylinder through the fuel injection valve, and an EGR amount control module for adjusting an amount of EGR gas introduced into the cylinder. EGR and fuel injection are adjusted based on speed-load conditions of the engine.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: December 17, 2013
    Assignee: Mazda Motor Corporation
    Inventors: Keiji Maruyama, Masaki Ushitani
  • Publication number: 20130305709
    Abstract: Methods and systems are provided for reducing turbo lag in a boosted engine. A boost reservoir coupled to the engine may be charged with compressed intake air and/or combusted exhaust gas. The pressurized charge may then be discharged during a tip-in to either the intake or the exhaust manifold.
    Type: Application
    Filed: May 17, 2012
    Publication date: November 21, 2013
    Applicant: Ford Global Technologies, LLC
    Inventors: John Eric Rollinger, Adam J. Richards, Alex O'Connor Gibson, David Bell, Julia Helen Buckland
  • Patent number: 8589084
    Abstract: Ethanol emissions from a direct ignition spark ignition are measured using mass spectrometry. The method exploits specific fragment ions from ethanol. Ethanol contributes ions of mass number 31, and no other gas species produces ions at this mass number. The method and a device for implementing the method can be used for online detection of ethanol in emissions from engines burning E85 or other ethanol/gasoline mixtures.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: November 19, 2013
    Assignee: Massachusetts Institute of Technology
    Inventors: Kenneth Kar, Wai K. Cheng
  • Patent number: 8528332
    Abstract: A method for providing air to a combustion chamber of an engine, the engine including a compressor and a boost tank selectably coupled to an intake manifold. The method includes varying a relative amount of engine exhaust in air pressurized in the boost tank based on engine operating conditions, and discharging the air pressurized in the boost tank to the intake manifold.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: September 10, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Ross Dykstra Pursifull, Ralph Wayne Cunningham, Gopichandra Surnilla
  • Patent number: 8505296
    Abstract: A method for controlling engine temperature of an engine with a wide dynamic range is disclosed. In one example, the derivative of an engine temperature is assessed by a controller. The controller may adjust engine actuators to limit engine temperature in response to the derivative.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: August 13, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Benjamin Carl Mukkala, Nathanael David Shaw, Jason Eugene Devries, Brian Michael O'Neil, Michael Joseph Giunta
  • Patent number: 8484968
    Abstract: A method of operating a compression-ignition engine includes adjusting timing of fuel injection if a sensed parameter indicative of a maximum pressure within a combustion chamber varies relative to a selected pressure and if fuel injection timing is greater than a preselected timing.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: July 16, 2013
    Assignee: General Electric Company
    Inventor: Manoj Prakash Gokhale
  • Patent number: 8468823
    Abstract: Disclosed is a supercharged direct-injection engine, which comprises a supercharging device (25, 30) for compressing intake air, and an injector 10 for directly injecting fuel into a combustion chamber 5. In the engine, an excess air factor ? as a ratio of an actual air-fuel ratio to a stoichiometric air-fuel ratio, at least in an engine warmed-up mode, is set to 2 or more in the entire engine-load region. Further, compressed self-ignited combustion is performed in a low engine-load region, and a supercharging amount by the supercharging device (25, 30) is increased along with an increase in engine load in a high engine-load region to allow the excess air factor ? to be kept at 2 or more. The engine of the present invention can effectively reduce NOx emission, while improving fuel economy.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: June 25, 2013
    Assignee: Mazda Motor Corporation
    Inventors: Mitsuo Hitomi, Masahisa Yamakawa, Takashi Youso, Toshiaki Nishimoto, Keiji Araki
  • Patent number: 8468801
    Abstract: A warming-up system performing a catalytic converter warming-up method has an electric motor (1m) enabling a turbocharger (1) to increase the amount of air supplied to an internal combustion engine (2) regardless of the amount of exhaust gas flowing through a turbine (1t) of the turbocharger (1), a variable nozzle (1n) regulating the flow of exhaust gas through the turbine (1t), and an ECU (5) for controlling the operation of the electric motor (1m) and the variable nozzle (1n) and the amount of fuel supplied to the internal combustion engine (2). After the internal combustion engine (2) is started, the ECU (5) warms up the catalytic converter (4) by driving the electrical motor (1m) to forcibly rotate the turbine (1t), opening the variable nozzle (1n), and increasing fuel supply to the internal combustion engine (2).
    Type: Grant
    Filed: March 9, 2009
    Date of Patent: June 25, 2013
    Assignee: IHI Corporation
    Inventors: Masahiro Shimizu, Kazuhiko Shinagawa
  • Patent number: 8459021
    Abstract: A supercharged engine has a geometric compression ratio ser to 16 or more and is designed to perform a compression self-ignition combustion under an air-fuel ratio leaner than a stoichiometric air-fuel ratio at least in a low engine speed range. On a lower engine load side than a given engine load within an engine operating region at which the compression self-ignition combustion is performed, a fresh air amount is reduced and an effective compression ratio (??) is increased, as compared with a higher engine load side than the given engine load within the engine operating region, and, on the higher engine load side than the given engine load, a supercharging pressure based on a supercharger (25) is increased to increase the fresh air amount, and the effective compression ratio (??) is reduced, as compared with the lower engine load side than the given engine load.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: June 11, 2013
    Assignee: Mazda Motor Corporation
    Inventors: Masahisa Yamakawa, Kouhei Iwai, Shuji Oba
  • Patent number: 8459025
    Abstract: A device for controlling the exhaust-gas turbocharging of an internal combustion engine having an exhaust-gas turbocharging device, has an estimated value unit for determining a mass flow through a turbine system, a regulating unit for determining a regulating exhaust-gas back pressure as a function of a nominal charge pressure and an actual charge pressure, and also a unit for generating at least one actuating signal for at least one actuator of the turbine system as a function of the regulating exhaust-gas back pressure and of the mass flow through the turbine system, wherein the estimated value unit has a turbine system model for determining an estimated overall efficiency of the turbine system and a model for determining an estimated overall efficiency of a compressor system having at least two compressors, and wherein the regulating unit is set up to determine the regulating exhaust-gas back pressure using the estimated overall efficiencies
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: June 11, 2013
    Assignee: Continental Automotive GmbH
    Inventor: Anselm Schwarte
  • Patent number: 8408180
    Abstract: Disclosed is a control apparatus for a turbocharged diesel engine. The control apparatus comprises an engine start controller (10) operable, when an engine restart condition associated with a demand for vehicle start is satisfied, to execute a split-injection control to perform a main injection for injecting fuel at a timing around a top dead center of a compression stroke, and a post injection for injecting fuel in an expansion stroke following the main injection, during the engine restart control, and, when an engine restart condition nonassociated with the demand for vehicle start is satisfied, to execute the engine restart control to perform only the main injection without executing the split-injection control. This makes it possible to optimize the engine restart control to be execute in response to satisfaction of the engine restart condition, depending on the presence or absence of the demand for vehicle start.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: April 2, 2013
    Assignee: Mazda Motor Corporation
    Inventors: Masahiro Nagoshi, Masayuki Tetsuno, Masaharu Marumoto
  • Patent number: 8375714
    Abstract: A method of operating a turbocharged system includes controlling speed of a turbocharger and substantially eliminating choke of a compressor coupled to a turbine by adjusting exhaust flow through a turbine wastegate, or by adjusting airflow through a compressor recirculation valve, or by adjusting a combination thereof in response to variance in parameters including compressor inlet temperature, compressor inlet pressure, and turbocharger speed.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: February 19, 2013
    Assignee: General Electric Company
    Inventors: Manoj Prakash Gokhale, Roy James Primus, Kendall Roger Swenson
  • Patent number: 8352167
    Abstract: A method for reducing a temperature of an engine component is disclosed. In one example, an air-fuel ratio provided to an engine is adjusted to reduce a temperature of an engine component. The approach may be useful for controlling temperature and emissions from a turbocharged engine.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: January 8, 2013
    Assignee: Ford Global Technologies, LLC
    Inventor: Stephen George Russ
  • Patent number: 8347626
    Abstract: The present invention relates to a method of controlling the intake of a supercharged engine comprising a cylinder (10) with at least two intake pipes (12, 14) associated with their intake valves (16, 18) and connected to an intake distributor (30), and at least one exhaust pipe (20) with its exhaust valve (22), a method according to which, before the end of the exhaust phase of said engine, an exhaust gas scavenging operation is carried out by overlap of exhaust valve (22) and intake valve (16) and, at the end of the scavenging operation, a stage of fuel mixture preparation is performed for combustion of this mixture in said cylinder.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: January 8, 2013
    Assignee: IFP
    Inventor: Xavier Gautrot
  • Patent number: 8333071
    Abstract: A method and system to control an engine to maintain turbine inlet temperature utilizes two temperature thresholds: a control initiation temperature and a maximum hardware temperature. An engine parameter is adjusted in a closed-loop manner based on an error, which is a difference between a setpoint temperature and the turbine inlet temperature. The setpoint temperature is initially the control initiation temperature. However, after control over turbine inlet temperature is established, the setpoint temperature ramps gradually to maximum hardware temperature. In one embodiment, the engine parameter is engine torque. Other engine parameters affecting turbine inlet temperature include timing and duration of fuel injection pulses, EGR rate, gear selection, and intake throttle position, any of which can be used in place of, or in combination with, torque for controlling turbine inlet temperature.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: December 18, 2012
    Assignee: Ford Global Technologies, LLC
    Inventors: Aaron John Oakley, Paul Martin Niessen, Jason Ronald Smith
  • Patent number: 8276549
    Abstract: The present invention provides a flexible fuel, spark ignition, variable boost, supercharged internal combustion engine. A variable speed drive assembly connects the engine output to a supercharger. The engine includes a fuel sensor which provides a signal to an engine controller which determines the type of fuel. The engine controller also receives signals from a mass air flow sensor, a manifold air pressure sensor, a crank angle sensor, a camshaft angle sensor, an oxygen sensor in the exhaust stream and a transmission controller. The engine controller provides control signals to an ignition module, to a fuel injection system, to an electronic throttle control, to a supercharger drive controller and to the transmission controller.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: October 2, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Ko-Jen Wu, James C. Elmslie, Jian Jun Zhang
  • Publication number: 20120240571
    Abstract: An object of the present invention is to provide a control device that is used for an internal combustion engine with a turbocharger and capable of suppressing the deterioration of a catalyst when a speed reduction fuel cut is performed in a situation where the temperature of the turbocharger is high. The control device includes a turbine for the turbocharger installed in an exhaust path of the internal combustion engine, a catalyst installed in the exhaust path and disposed downstream of the turbine, a bypass path for bypassing the turbine by connecting the exhaust path upstream of the turbine to the exhaust path between the turbine and the catalyst, and a waste gate valve capable of opening and closing the bypass path. The control device opens the waste gate valve when a speed reduction fuel cut operation is performed in a situation where the temperature of the turbocharger is higher than its setting.
    Type: Application
    Filed: December 7, 2010
    Publication date: September 27, 2012
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takayuki Otsuka
  • Patent number: 8272215
    Abstract: A method for responding to an existing or incipient surge condition of a turbocharger coupled to an engine of a motor vehicle is provided. The method comprises receiving a signal responsive to an operating condition of the turbocharger and adjusting one or more operating parameters of the motor vehicle when a power of the signal, integrated over a pre-selected range of non-zero frequencies, exceeds a pre-selected threshold. Other embodiments provide related systems for responding to an existing or incipient surge condition of a turbocharger.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: September 25, 2012
    Assignee: Ford Global Technologies, LLC
    Inventors: Yong Shu, Michiel J. Van Nieuwstadt, Brien Lloyd Fulton, Frank M. Korpics, Harold Huimin Sun
  • Patent number: 8266905
    Abstract: A method for controlling fueling of an internal combustion engine is provided. The engine may include an intake manifold, one or more exhaust manifolds and a turbocharger coupled between the intake and exhaust manifolds. The method may comprise estimating an operating condition of the turbocharger, determining a maximum value of an operating parameter as a function of the estimated operating condition of the turbocharger, measuring a value of the operating parameter, determining an error value as a function of the maximum value of the first operating parameter and the measured value of the operating parameter, and limiting fuel supplied to the engine based on the error value.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: September 18, 2012
    Assignee: Cummins Inc.
    Inventors: David J. Reynolds, Zachary Schwab, Ralph Gutman
  • Patent number: 8250864
    Abstract: A method is for controlling the torque of a hybrid drive unit, which includes a combustion engine and at least one electric machine capable of being operated alternatively as a motor or as a generator. The electric machine, when operated as a motor, is powered by an energy storage device and supplies a positive electric motor torque which together with a combustion engine torque of the combustion engine produces a total drive torque of the hybrid drive unit. A hybrid drive unit includes a respective torque control. In the event that a desired torque is greater than a consumption-optimized combustion engine maximum torque, the electric machine is operated as a motor having an electric motor torque. An electric motor maximum torque is specified as a function of at least one state parameter of the energy storage device.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: August 28, 2012
    Assignee: Volkswagen AG
    Inventors: Ekkehard Pott, Matthias Holz, Michael Zillmer, David Prochazka
  • Publication number: 20120204556
    Abstract: A first supercharger and a second supercharger are disposed in series in intake and exhaust passages. In a B region in which both the supercharging effects of the first and second superchargers are utilized, the opening of an exhaust control valve disposed in a passage for bypassing the turbine of the first supercharger is set to an intermediate degree, and the opening of an intake control valve disposed in a passage for bypassing the compressor of the first supercharger is set to the minimum. In a C region in which the supercharging effect of only the second supercharger is utilized, both the openings of the exhaust control valve and the intake control valve are set to the maximum. When the control region shifts from B region to C region as result of acceleration of the vehicle, the fuel injection amount is reduced over a predetermined period immediately after the shift.
    Type: Application
    Filed: October 26, 2009
    Publication date: August 16, 2012
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tetsuji Tomita, Taku Ibuki, Yoshihisa Hirosawa
  • Patent number: 8215292
    Abstract: Method of operating an internal combustion engine, including, at least, compressing and cooling air outside an engine chamber, supplying cooled, pressurized air to an intake port associated with the chamber, and, during each engine cycle: opening the intake port, allowing cooled, pressurized air to flow through the intake port and into the chamber during at least a portion of the intake stroke; maintaining open the intake port during the portion of the intake stroke and beyond the end of the intake stroke and into the compression stroke and during a majority portion of the compression stroke; closing the intake port at a point during travel of the piston to capture in the chamber a cooled compressed charge of the cooled, pressurized air; controllably delivering fuel into the chamber after the cooled compressed charge is captured within the chamber; and igniting a fuel and air mixture within the chamber.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: July 10, 2012
    Inventor: Clyde C. Bryant
  • Patent number: 8205601
    Abstract: An engine system includes a correction factor generation module and a boost pressure correction module. The correction factor generation module generates a correction factor based on a first pressure difference, wherein the first pressure difference corresponds to a difference between an intake manifold absolute pressure (MAP) when an engine is on and a barometric pressure. The boost pressure correction module generates a corrected boost pressure based on the MAP when the engine is on, a second pressure difference, and the correction factor, wherein the second pressure difference corresponds to a difference between the MAP when the engine is off and the barometric pressure.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: June 26, 2012
    Inventor: John Coppola
  • Patent number: 8200387
    Abstract: In a method for controlling the operation of an internal combustion engine, a target torque to be produced is determined in several steps: In a first step a torque requested by a user is determined and modified in subsequent steps by different functions, which reproduce the influences of at least one continuously determined working and/or operating parameter of the engine on the torque that is actually produced, in such a way that at the end of the steps the target torque required during the engine operation is defined and the engine operation and the determination of the working and/or operating parameter are monitored for errors. If errors occur, diagnostic values that describe or indicate the errors are generated and used to modify, in particular limit the target torque. The diagnostic values are individually assigned to the individual steps to modify the determination or modification of the torque performed in each step.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: June 12, 2012
    Assignee: Continental Automotive GmbH
    Inventors: Stefan Maier, Martin Prenninger
  • Patent number: 8196404
    Abstract: An exhaust gas recirculation system includes a high-pressure EGR unit; a low-pressure EGR unit; a high-pressure EGR valve; a low-pressure EGR valve; and an EGR control unit that adjusts the opening amount of the high-pressure EGR valve to a required value for achieving the target EGR rate based on the characteristics of the exhaust gas in the low-pressure EGR passage before the operation mode is changed, and that maintains the required value during a period from when the operation mode is changed until when the low-pressure EGR gas is changed to the exhaust gas discharged from the internal combustion engine in the post-change operation mode.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: June 12, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomomi Onishi, Shigeki Nakayama, Teruhiko Miyake, Masahiro Nagae, Hajime Shimizu, Isao Matsumoto, Tomoyuki Ono, Hiroki Murata, Akira Yamashita, Hiroyuki Haga
  • Publication number: 20120096853
    Abstract: A radial, two-stroke uniflow internal combustion (IC) cylinder and multiple cylinder engine, the cylinder having a cylinder wall and a cylinder head, the cylinder head having an exhaust port, a fuel injector, and a spark means disposed through the cylinder head, a piston reciprocally mounted in the cylinder for movement alternately through compression and power strokes, and an inlet swirl port disposed through the cylinder wall providing fluid communication into the cylinder chamber, and having an annular exhaust air manifold in exhaust gas communication with each exhaust ports, and an exhaust-driven radial in-flow turbine that drives the inlet air compression.
    Type: Application
    Filed: November 7, 2011
    Publication date: April 26, 2012
    Inventor: Jack R. Taylor
  • Patent number: 8141356
    Abstract: Methods and systems for separating fuel and supplying the separated fuel to an engine are disclosed. In one example, alcohol is separated from a blend of alcohol and gasoline. The methods and systems may improve fuel separator operation by adjusting separator operation in response to engine operating conditions.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: March 27, 2012
    Assignee: Ford Global Technologies, LLC
    Inventors: Thomas G. Leone, Robert A. Stein
  • Patent number: 8141357
    Abstract: An engine system with a turbocharger is provided. The system may include an exhaust manifold having plural independent exhaust passages, each of the exhaust passages being connected to an exhaust port of a corresponding engine cylinder. The system may further include a collective part formed by gathering said independent exhaust passages in said exhaust manifold or on a downstream side of said exhaust manifold. The system may further include an exhaust turbocharger connected to a downstream side of said collective part. The system may further include a variable exhaust valve for changing each passage cross-sectional area of said independent exhaust passage at an upstream side of said collective part. The system may further include a controller for controlling said variable exhaust valve, wherein said controller is configured to perform independent exhaust throttle control for reducing a passage cross-sectional area of at least one of said independent exhaust passages.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: March 27, 2012
    Assignee: Mazda Motor Corporation
    Inventors: Naoyuki Yamagata, Mikihito Fujii, Susumu Masuyama
  • Patent number: 8117840
    Abstract: An abnormality-determining device for a turbo-supercharger, which is capable of detecting abnormalities, including response delay of a movable member, with accuracy. A turbo-supercharger provided in an internal combustion engine has variable vanes 8c arranged in an exhaust turbine, for changing an area of a nozzle thereof. An abnormality-determining device stops supply of fuel to the engine, when the engine is in a predetermined operating condition, actuates the variable vanes, after actuating the same toward one of an open side and a closed side, toward the other of the sides, during the stoppage of fuel supply, detects a supercharging parameter indicative of a degree of supercharging by the turbo-supercharger, and determines abnormality of the turbo-supercharger based on a change in the supercharging parameter detected during the actuation of the movable vanes.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: February 21, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Hirofumi Hara, Masaki Tsuda
  • Patent number: 8112218
    Abstract: A method for reducing a temperature of an engine component is disclosed. In one example, an air-fuel ratio provided to an engine is adjusted to reduce a temperature of an engine component. The approach may be useful for controlling temperature and emissions from a turbocharged engine.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: February 7, 2012
    Assignee: Ford Global Technologies, LLC
    Inventor: Stephen George Russ
  • Patent number: 8104279
    Abstract: In a method and a device for determining an operating characteristic of an injection system, to determine an operating characteristic (30) of an internal combustion engine (1) that is charged by a turbocharger (4), the method has the following steps: A) carrying out a pilot injection of fuel into a cylinder (51, 52, 53, 54) of the internal combustion engine using the injection system (30); B) determining an operating parameter of the turbocharger (40); C) determining an operating characteristic of the injection system (30) using the operating parameter of the turbocharger (40) previously determined.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: January 31, 2012
    Assignee: Continental Automotive GmbH
    Inventors: Uwe Jung, Hans-Peter Rabl, Janos Radeczky
  • Patent number: 8082735
    Abstract: Fuel management system for enhanced operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder. It is preferred that the direct injection occur after the inlet valve is closed. It is also preferred that stoichiometric operation with a three way catalyst be used to minimize emissions. In addition, it is also preferred that the anti-knock agents have a heat of vaporization per unit of combustion energy that is at least three times that of gasoline.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: December 27, 2011
    Assignee: Massachusetts Institute of Technology
    Inventors: Leslie Bromberg, Daniel R. Cohn, John B. Heywood
  • Publication number: 20110247325
    Abstract: A fuel delivery system for an internal combustion engine and a method of operating the fuel delivery system is described. As one example, the method includes delivering a first fuel blend from a first fuel tank to the engine; delivering a second fuel blend from a second fuel tank to the engine, the proportion of said second fuel blend delivered to the engine to said first fuel blend delivered to the engine being related to the desired engine output; transferring said first fuel blend from said first fuel tank to said second fuel tank to prevent an amount of said first fuel blend and said second fuel blend in said second fuel tank from falling below a predetermined level; and boosting air delivered to the engine, the amount of boosting being related to latent heat of vaporization of said second fuel blend delivered to the engine.
    Type: Application
    Filed: June 24, 2011
    Publication date: October 13, 2011
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Allan J. Lippa, Donald J. Lewis
  • Patent number: 7987672
    Abstract: A turbocharger protection system for an engine system that includes a particulate filter and a turbocharger comprises a delta pressure estimator that estimates a pressure difference in a particulate filter. A pressure factor estimator module estimates a pressure factor based on the difference and barometric pressure. A fuel limit estimator module protects the turbocharger by selectively limiting fuel injection to the engine based on the pressure factor.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: August 2, 2011
    Inventor: Ravishankar Ramamurthy
  • Patent number: 7908858
    Abstract: A turbocharger control system is disclosed. The control system may have an engine and a fuel system configured to regulate fuel flow into the engine. The control system may further have an air induction system configured to regulate air flow into the engine and a sensor situated to sense a speed value of the air induction system. The controller may also have a controller configured to receive the speed value and regulate fuel flow into the engine as a function of the speed value.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: March 22, 2011
    Assignee: Caterpillar Inc.
    Inventors: Christopher Ronald Gehrke, James Harris Mutti, Jr.
  • Patent number: 7877996
    Abstract: A boost system for an engine is described. In one example, the boost system provides air to an engine cylinder via a converging-diverging valve seat. The system can reduce turbocharger lag during some conditions.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: February 1, 2011
    Assignee: Ford Global Technologies, LLC
    Inventors: Al Berger, Thomas Leone