Including Cylinder Pressure Or Temperature Responsive Means Patents (Class 123/435)
  • Patent number: 11111871
    Abstract: Provided is an ignition control section and an injection control section. When partial compression ignition combustion is carried out, the ignition control section causes an ignition plug to carry out: main ignition in which a spark is generated in a late period of a compression stroke or an initial period of an expansion stroke to initiate SI combustion; and preceding ignition in which the spark is generated at earlier timing than the main ignition. Also, when the partial compression ignition combustion is carried out, the injection control section causes an injector to inject fuel at such timing that the fuel exists in a cylinder at an earlier time point than the preceding ignition. Ignition timing of the preceding ignition is set to be more advanced when an in-cylinder temperature specified by an in-cylinder temperature specification section is high than when the in-cylinder temperature is low.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: September 7, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Kota Matsumoto, Tomonori Urushihara, Keiji Maruyama, Masanari Sueoka, Ryohei Ono, Yuji Harada, Toru Miyamoto, Atsushi Inoue, Tatsuhiro Tokunaga, Takuya Ohura, Yusuke Kawai, Tomohiro Nishida, Keita Arai, Yodai Yamaguchi
  • Patent number: 11085387
    Abstract: Methods and systems, using a controller (20), for performing de-rate operation of an engine (12) is disclosed. Controller (20) includes a de-rate condition detection unit (204), an operational parameter adjustment unit (206), and a de-rate condition monitoring unit (208). De-rate condition detection unit (204) detects a low fuel condition based on a current delivery pressure level of the engine (12) detected at least one of: in a fuel tank (24) and along an inlet fuel rail (38) connecting the fuel tank (24) to the engine (12). Operational parameter adjustment unit (206) performs the de-rate operation on the engine (12) by adjusting one or more operational parameters related to an engine (12) load based on the detected low fuel condition. De-rate condition monitoring unit (208) monitors the detected low fuel condition for a predetermined time period in response to the operational parameter adjustment performed by operational parameter adjustment unit (206).
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: August 10, 2021
    Assignee: Cummins Inc.
    Inventors: Gregory A. Weber, Todd F. Sloan, Eric Coupal-Sikes, Morgan M. Andreae, Jean-Patrick V. Rich
  • Patent number: 11067009
    Abstract: The invention relates to a method (100) for estimating a cylinder pressure (CP) in an internal combustion engine arrangement (10), the method comprising the steps of: initiating (110) an opening of a valve by an actuator during an expansion stroke; monitoring (120) the valve to determine a point in time (Tp) when the valve opens; determining (130) a differential pressure (DP) between the combustion cylinder and a position in a fluid medium exhaust passage (29, 39, 60) downstream said valve at the point in time (Tp); receiving (140) data being indicative of a pressure (EP) in the fluid medium passage at the point in time (Tp); and determining (150) the cylinder pressure (CP) at the point in time (Tp) based on the determined differential pressure (DP) and the data indicative of the pressure in said fluid medium passage.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: July 20, 2021
    Assignee: VOLVO TRUCK CORPORATION
    Inventors: David Carlson, Staffan Lundgren
  • Patent number: 11067052
    Abstract: Provided is a control device of an internal combustion engine that reduces the number of times of discharge in multiple discharge by an ignition plug of the internal combustion engine and suppresses an error in fuel ignition by the ignition plug. The control device according to the present invention includes an ignition plug provided in a cylinder of an internal combustion engine, and an ignition control unit which has an ignition control function of controlling discharge (ignition) of the ignition plug and an ignition detection function of detecting ignition of an air-fuel mixture through ignition by the ignition plug. The ignition control unit is configured to stop ignition by the ignition plug on the basis of detection of ignition of the air-fuel mixture by the ignition plug.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: July 20, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventor: Eiichirou Oohata
  • Patent number: 11028748
    Abstract: In a dither control process performed on a fuel injection valve, at least one cylinder is set as a rich combustion cylinder and another cylinder is set as a lean combustion cylinder. A dither control process is executed in a first mode when a vehicle is driven in a normal manner by a user. The dither control process is executed in a second mode on condition that a command signal for performing a temperature raising process on the exhaust gas purifier is input from a device outside the vehicle at a repair shop. The absolute value of the difference between the air-fuel ratio of the lean combustion cylinder and the air-fuel ratio of the rich combustion cylinder obtained by the dither control process is set to be greater in the second mode than in the first mode.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: June 8, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Noriyasu Kobashi, Takashi Nakamura, Tomokazu Akutsu
  • Patent number: 11008996
    Abstract: An ignition timing control device includes bandpass filters each configured to pass and output only a specific frequency band for the output value of a knocking sensor, a storage device storing first learned neural networks configured to receive the output values of the bandpass filters in respective frequency band, and a processor. Each of the first learned neural networks is pre-learned to output an estimated value for a value representing knocking intensity when receiving the filtered output value of the bandpass filter. The processor calculates an optimal estimated value using a part of acquired estimated values for the value excluding a unique estimated value, and executes retarding control of an ignition timing based on the calculated optimal estimated value.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: May 18, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masahiro Mori, Akinori Kitazume, Kenji Senda, Daisuke Kobayashi
  • Patent number: 10975795
    Abstract: A method for model-based control and regulation of an internal combustion engine. An emission class for operating the engine is read from a first library by an optimizer; a maximum mechanical component load is read from a second library by the optimizer using the engine type; and the emission class and the component load are set as mandatory for a combustion model and a gas path model. Injection system target values for actuating injection system actuators are calculated using the combustion model based on a target torque. Gas path target values for actuating gas path actuators are calculated using the gas path model based on the target torque. A quality measurement is calculated by the optimizer based on the injection system and gas path target values. The quality measurement is minimized by the optimizer by changing the injection system and gas path target values within a prediction horizon.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: April 13, 2021
    Assignee: MTU FRIEDRICHSHAFEN GMBH
    Inventors: Jens Niemeyer, Andreas Flohr, Jörg Remele, Christian Wolf
  • Patent number: 10941687
    Abstract: A catalyst temperature estimation device that estimates a temperature of a catalyst provided in an exhaust passage of an internal combustion engine includes a storage device and processing circuitry. The storage device stores mapping data that specifies a mapping that uses multiple input variables to output an estimation value of the temperature of the catalyst. The multiple input variables include at least one variable of an ambient temperature variable or an excess amount variable. The multiple input variables further include a fluid energy variable, which is a state variable related to energy of fluid flowing into the catalyst, and a previous cycle value of the estimation value of the temperature of the catalyst. The processing circuitry is configured to execute an acquisition process, a temperature calculation process, and an operation process. The mapping data includes data that is learned through machine learning.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: March 9, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Harufumi Muto, Atsushi Nagai, Yosuke Hashimoto, Masakazu Aoki
  • Patent number: 10926242
    Abstract: Systems and methods for separating hydrocarbons on an internal combustion powered vehicle via one or more metal organic frameworks are disclosed. Systems and methods can further include utilizing separated hydrocarbons and exhaust to generate hydrogen gas for use as fuel.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: February 23, 2021
    Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Mohamed Eddaoudi, Youssef Belmabkhout
  • Patent number: 10815919
    Abstract: A system for controlling combustion misfire in an engine comprising a plurality of cylinders, at least a portion of the plurality of cylinders receiving recirculated exhaust gas, comprises a controller structured to detect a combustion misfire in at least one of the cylinders of the plurality of cylinders. The controller is configured to retard a spark timing of at least the portion of the plurality of cylinders after a time delay.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: October 27, 2020
    Assignee: Cummins Inc.
    Inventors: J. Steven Kolhouse, David J. Stroh
  • Patent number: 10788239
    Abstract: The disclosure describes a generator set that includes a generator, an engine mechanically coupled to the generator, an enclosure housing the engine and the generator, a heating system, and a renewable energy-powered energy source. The generator is configured to supply power to an electrical system. The heating system is configured to heat at least one of the engine or the enclosure to at least a startup temperature. The renewable energy-powered energy source is configured to supply energy to the heating system to heat the at least one of the engine or the enclosure.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: September 29, 2020
    Assignee: MTU Onsite Energy Corporation
    Inventor: Dylan James Brandt
  • Patent number: 10781767
    Abstract: A fuel injection control apparatus switches between MPI and DI+MPI modes. The apparatus includes a unit calculating a DI direct combustion rate that is the rate of that portion of the amount of DI injection corresponding to a fuel combusted instead of adhering to inside of the cylinder, and a unit calculating a cylinder vaporization rate that is the rate of the amount of that portion of the fuel adhering to the inside of the cylinder which vaporizes. The former unit controls fuel injection based at least on the DI direct combustion rate and the cylinder vaporization rate. When the mode is switched between the MPI mode and the DI+MPI mode, the former unit corrects the DI direct combustion rate or the cylinder vaporization rate to set the amount of fuel injection to a value different from that set when the fuel injection modes are maintained.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: September 22, 2020
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Hitoshi Toda, Toshiyuki Miyata, Katsunori Ueda, Takahiro Tsutsui
  • Patent number: 10767592
    Abstract: A failure diagnosis device for an in-cylinder pressure sensor includes an in-cylinder pressure sensor, and a controller comprised of circuitry configured to execute a diagnosis module into which a signal of the in-cylinder pressure sensor is inputted and configured to diagnose a failure of the sensor based on the signal. The diagnosis module includes a reading module configured to read the signals of the in-cylinder pressure sensor at a first timing that is a timing retarded by a specific crank angle from a compression top dead center, and at a second timing that is a timing advanced by the specific crank angle from the compression top dead center, and a failure determining module configured to determine that the in-cylinder pressure sensor has failed when the failure determining module determines that a difference between signal values at the first timing and at the second timing exceeds a predefined threshold.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: September 8, 2020
    Assignee: Mazda Motor Corporation
    Inventors: Shoji Fujiwara, Hidetoshi Hashimoto, Takuji Okumura, Shigeru Nakagawa, Yasushi Torii, Masayuki Kinoshita, Yuichiro Tsumura, Daisuke Tanaka, Taiki Maiguma
  • Patent number: 10767581
    Abstract: A method for operating an internal combustion engine for a motor vehicle including receiving measurement signals of a cylinder pressure sensor and determining cylinder pressure fluctuations as a function of the received measurement signals of the cylinder pressure sensor. The method also includes increasing an exhaust gas recirculation rate of the internal combustion engine as a function of the determined cylinder pressure fluctuations until a predefined limiting value of the cylinder pressure fluctuations is reached. In addition, the method includes determining an actual value of the exhaust gas recirculation rate if the predefined limiting value of the cylinder pressure fluctuations is reached, and storing the determined actual value as a setpoint value for the exhaust gas recirculation rate of the internal combustion engine.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: September 8, 2020
    Assignee: Vitesco Technologies GmbH
    Inventor: Hong Zhang
  • Patent number: 10753305
    Abstract: A combustion control method in an engine of a vehicle wherein an exhaust path includes a catalyst and a NOx sensor provided on an upstream side of the catalyst, the method includes the following steps. A step of determining whether a NOx concentration in an exhaust gas falls within a predetermined reference range; a step of estimating a heat generation rate profile indicating crank angle dependency of a heat generation rate in the engine when the NOx concentration is determined out of the reference range; and a step of comparing a value of an index characterizing the estimated heat generation rate profile with a value of an index in an ideal heat generation rate profile specified from a driving condition of the vehicle and controlling a combustion condition in the engine based on a result.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: August 25, 2020
    Assignee: NGK INSULATORS, LTD.
    Inventor: Takafumi Yamaguchi
  • Patent number: 10746127
    Abstract: A controller includes a valve control unit and a target calculation unit. The valve control unit is configured to control a fuel injection valve such that divergence decreases between an ignition delay of fuel injected into a cylinder through main injection and an ignition delay target value. The target calculation unit is configured to calculate the ignition delay target value such that the ignition delay target value decreases as estimated ignitability of the fuel in the cylinder increases during an engine operation in a region where diffusion combustion and premix combustion are both performed, the ignitability of the fuel in the cylinder being estimated based on a parameter that varies the ignitability.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: August 18, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Kentaro Nishida
  • Patent number: 10626808
    Abstract: Various embodiments include a method for controlling an internal combustion engine comprising: determining a speed of the internal combustion engine; determining a cylinder wall temperature of a combustion cylinder of the internal combustion engine; selecting an injection mode based at least in part on the speed and the cylinder wall temperature; and actuating a fuel injector associated with the combustion cylinder based on the selected injection mode.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: April 21, 2020
    Assignee: CONTINENTAL AUTOMOTIVE GMBH
    Inventors: Gerhard Eser, Erwin Achleitner, Florian Kleiner
  • Patent number: 10590870
    Abstract: A method of calculating an exhaust gas recirculation (EGR) rate using combustion pressure of a cylinder of an internal combustion engine includes: detecting, by a pressure sensor, the combustion pressure of the cylinder in real time; calculating, by a processor, a data characteristic of a combustion pressure waveform per cycle through principal component analysis based on the detected combustion pressure of the cylinder; calculating, by the processor, a moment of the combustion pressure waveform per cycle by calculating a probability distribution based on the detected combustion pressure of the cylinder; calculating, by the processor, the EGR rate using the calculated data characteristic, the calculated moment, and engine operating conditions; and controlling, by the processor, the EGR rate based on the calculated EGR rate and a target EGR rate.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: March 17, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, IUCF-HYU (Industry-University Cooperation Foundation Hanyang University
    Inventors: Seungwoo Hong, Hyungbok Lee, Yeongseop Park, Dong Hee Han, Haksu Kim, Myoungho Sunwoo, Donghyuk Jung
  • Patent number: 10578041
    Abstract: A method of predicting and controlling NOx generation amount is provided. The method includes calculating a difference between an actual and a reference NOx exhaust amount and analyzing influence of the in-cylinder pressure at a combustion start time, an oxygen amount in EGR gas, and a fuel injection timing. A NOx rate of change is calculated based on change in the in-cylinder pressure at the combustion start time, the oxygen amount in the EGR gas, and the fuel injection timing. A variation width and a NOx value are calculated at the combustion start time, the oxygen amount in the EGR gas, and the fuel injection timing. The NOx value is adjusted based on the NOx value adjustment amount and a NOx final value is determined. A target boost pressure, a target oxygen amount, and a target fuel injection timing are determined to provide a final command signal.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: March 3, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Kyoungchan Han
  • Patent number: 10544742
    Abstract: A control device for an internal combustion engine comprising a combustion control part controlling a fuel feed system and ozone feed system so as to form a difference in ozone concentration space-wise or time-wise in a combustion chamber 11 so that premixed gas burns by compression ignition in stages in the combustion chamber and an ozone malfunction judging part judging malfunction of the ozone feed system. The ozone malfunction judging part judges that the ozone feed system is malfunctioning when the self-ignition timing is retarded from the presumed self-ignition timing and the combustion noise is larger than the presumed combustion noise or when the self-ignition timing is advanced from the presumed self-ignition timing and the combustion noise is smaller than the presumed combustion noise.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: January 28, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Satoshi Tsuda
  • Patent number: 10513999
    Abstract: An engine controller according to one aspect of the invention is applied to a cylinder injection engine including a fuel injection valve that directly injects fuel into a cylinder. The engine controller determines whether knocking is occurring based on a signal from a knocking sensor. When the knocking is occurring, the engine controller performs partial lift fuel injection at a predetermined timing close to an ignition timing. The partial lift fuel injection is performed with a lift amount of a valve body of the fuel injection valve limited within a range between a minimum lift amount (0) and a partial lift amount, which is smaller than a maximum lift amount.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: December 24, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Daisuke Uchida, Motonari Yarino, Susumu Hashimoto
  • Patent number: 10480433
    Abstract: A method and apparatus for calculating an internal exhaust gas recirculation (EGR) amount of an engine include a continuously variable valve duration (CVVD) apparatus. The internal EGR amount is calculated by correcting a backflow gas amount based on a valve duration changed by operation of the continuously variable valve duration apparatus during valve overlap of an intake valve or an exhaust valve.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: November 19, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Min-Kyu Won, Hyung-Soo Do, Soo-Hyeok Kang, Dae-Woo Kim
  • Patent number: 10450993
    Abstract: A fuel injection control device is applied to an internal combustion engine that includes a port injection valve and a direct injection valve. The fuel injection control device includes a port warm-up judgment section, which judges whether the intake port has been warmed up, and an injection mode determination section, which determines the injection mode based on the engine speed and a predicted load rate. When determining the injection mode at the cold operation of the internal combustion engine, the injection mode determination section sets the range of the operation region of the internal combustion engine in which the direct-injection-only mode is selected as the injection mode to be broader in a case in which the port warm-up judgment section has judged that the port has not been warmed up than in a case in which the port warm-up judgment section has judged that the port has been warmed up.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: October 22, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akinori Kitazume, Masanao Idogawa
  • Patent number: 10393032
    Abstract: An internal combustion engine includes a cylinder block that defines a cylinder and a cylinder head mounted to the cylinder block. A reciprocating piston is arranged inside the cylinder for compressing an air and fuel mixture at a geometric compression ratio of at least 10:1. A crankshaft is arranged in the cylinder block and rotated by the piston. An intake valve is operatively connected to the cylinder head and controls delivery of air to the cylinder for combustion therein. A mechanism provides a constant peak lift of the intake valve over an angle of rotation of the crankshaft that is at least 5 degrees, i.e., an extended dwell at peak lift. A multi-stage boosting system having first and second gas compressors is selectively controlled to pressurize air that is received from the ambient for delivery to the cylinder. A vehicle having such an engine is also disclosed.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: August 27, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Yongsheng He, David J. Cleary, Paul M. Najt, Jim Liu, David Sun, Bin Zhu
  • Patent number: 10358999
    Abstract: An engine controller according to one aspect of the invention is applied to a cylinder injection engine including a fuel injection valve that directly injects fuel into a cylinder. The engine controller determines whether knocking is occurring based on a signal from a knocking sensor. When the knocking is occurring, the engine controller performs partial lift fuel injection at a predetermined timing close to an ignition timing. The partial lift fuel injection is performed with a lift amount of a valve body of the fuel injection valve limited within a range between a minimum lift amount (0) and a partial lift amount, which is smaller than a maximum lift amount.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: July 23, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Daisuke Uchida, Motonari Yarino, Susumu Hashimoto
  • Patent number: 10345286
    Abstract: A method of determining the cetane number of a fuel in an internal combustion engine comprising, during running of the engine, i) with respect to one cylinder, performing a routine including a series of injections such that for each injection a quantity of fuel is injected into the cylinder, and during the routine varying the angle at which the injections takes place with respect to crankshaft angle; ii) measuring engine speed at intervals during the series of injections and determining values for changes in engine speed consequent to the injections; iii) determining cetane number from a pre-stored relationship relating the cetane number to changes in engine speed consequent to changes in the test injection angle.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: July 9, 2019
    Assignee: DELPHI TECHNOLOGIES IP LIMITED
    Inventors: Thierry Cochet, Jean-Michel Bacq
  • Patent number: 10316778
    Abstract: An estimation device includes: a memory and a processor, wherein the processor is configured to execute a process including: determining a point of a burning having a higher peak in a predetermined range of a heat release rate based on a peak of a burning having a smaller peak, in a heat release rate waveform in an internal combustion engine that performs a multiple-stage fuel injection; calculating a tangential line of the heat release rate waveform at the point; setting a predetermined point on the tangential line as an initial value for identifying a model parameter of a heat release rate model; identifying the model parameter so that a difference between a calculation value of the heat release rate model and the heat release rate waveform is reduced with use of the initial value; and estimating a heat release rate with a result of an identification of the identifying.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: June 11, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Masatoshi Ogawa, Noriyasu Aso, Hiromitsu Soneda, Takeo Kasajima, Masao Kondo
  • Patent number: 10304570
    Abstract: Various embodiments are directed towards a nuclear latch assembly. The assembly includes a latch housing and a latch mechanism. The latch mechanism includes a projection member. The latch mechanism provides a biasing force on the projection member. Unless an opposing force on the projection member counterbalances the biasing force, the projection member at least partially projects from a surface of the latch housing. The assembly may include a biasing member that provides the biasing force on the projection member. The assembly may include a bolt. The bolt includes a longitudinal axis. A bore included in the housing is sized to receive the bolt. When the bore receives the bolt, the housing is rotatable about the longitudinal axis of the bolt. The latch mechanism includes a side bore that receives the projection member, the biasing member, and a disk intermediate the projection member and the biasing member.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: May 28, 2019
    Assignee: NuScale Power, LLC
    Inventors: Seth Cadell, Tamas R. Liszkai
  • Patent number: 10281032
    Abstract: Under an abnormal determination, when a transmission gear stage is switched, a torque limit value is changed from a value before switching of the transmission gear stage to a value after switching thereof in a period in which this transmission gear stage is switched.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: May 7, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomohiro Asami, Masakazu Owatari, Takashi Miura, Yuki Murakami
  • Patent number: 10267246
    Abstract: An internal-combustion engine has an electronically-controlled one of a turbocharger and an exhaust-driven turbo supercharger coupled to an exhaust duct of the engine, and the engine is controlled during a shift event of a transmission coupled to an output shaft of the engine by determining a target engine speed at the end of the shift event, and controlling electrical energy supplied to an electric machine, rotatably coupled to a rotatable shaft that is rotatably coupled to the electronically-controlled turbocharger or exhaust-driven turbo supercharger, to control rotation of the rotatable shaft coupled to the turbocharger or exhaust-driven turbo supercharger to attain the target engine speed.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: April 23, 2019
    Assignee: BorgWarner Inc.
    Inventors: Tyler R. Garrard, Robert Merrion, John Kresse
  • Patent number: 10267251
    Abstract: A method for determining an air mass air in a cylinder of an internal combustion engine is disclosed. A first filling equivalent is determined during a compression phase of the cylinder, wherein the first filling equivalent corresponds to a first average pressure difference in a first angle range of a crank angle in the compression phase. A second filling equivalent is determined during an expansion phase of the cylinder, wherein the second filling equivalent corresponds to a second average pressure difference in a second angle range of the crank angle of the expansion phase. A differential filling equivalent is calculated by subtracting the first filling equivalent from the second filling equivalent. The air mass in the cylinder is determined based on the differential filling equivalent.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: April 23, 2019
    Assignee: CONTINENTAL AUTOMOTIVE GMBH
    Inventors: Harry Schuele, Bjoern Knorr
  • Patent number: 10247633
    Abstract: In a combustion pressure sensor having built-in charge amplifier, signal line overheating and deterioration of detection accuracy is restricted. The combustion pressure sensor includes a sensor body that includes a piezoelectric element having one end connected to chassis ground through a housing and detects pressure in a combustion chamber of engine, and a charge amplifier that includes at least a voltage converting unit converting output of the sensor body into voltage signal and a reference voltage generating unit generating reference voltage supplied to the voltage converting unit and operates on power supplied from a signal processing unit disposed outside. The reference voltage generating unit includes a voltage generating circuit having a constant current circuit and a resistor connected in series. The voltage generating circuit has one end connected to power line extending from the signal processing unit, and the other end connected to the end of the piezoelectric element.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: April 2, 2019
    Assignee: DENSO CORPORATION
    Inventors: Takayuki Shibata, Kouji Ooya
  • Patent number: 10233799
    Abstract: An engine control device sets a target value for the engine oil temperature appropriately in an engine that uses gasoline as a fuel, even when the fuel does not have a single boiling point because the gasoline is a mixed composition, or when the fuel property changes (for example, when the vaporization property changes due to deterioration). In other words, the engine control device prevents excessive heating or insufficient heating by changing the oil temperature to the high side in a condition wherein the fuel being used does not easily vaporize, and changing the oil temperature to the low side in a condition wherein the fuel being used easily vaporizes. This engine control device includes an oil temperature controller that controls the temperature of oil lubricating the interior of the engine; a fuel supply device that supplies fuel to the engine; and a detector for detecting the property of the fuel. The temperature of the oil is controlled on the basis of a signal from the detector.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: March 19, 2019
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Kenichiroh Ogata, Takashi Okamoto, Yoshinobu Arihara, Yoshihiro Sukegawa
  • Patent number: 10208691
    Abstract: A process and a system for preventing pre-ignition in an internal combustion engine (ICE) includes detecting an ionization level of a combusted gas from a cylinder of the ICE during gas exchange and for a given combustion cycle i. When the ionization level is greater than a reference ionization level a pre-ignition countermeasure prior to and/or during an immediate subsequent combustion cycle i+1 is executed. The ionization sensor may be part of a spark initiating device of the ICE or be a separate ionization sensor.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: February 19, 2019
    Assignee: FEV GmbH
    Inventor: Patrick Haenel
  • Patent number: 10119486
    Abstract: An engine control device controls a cylinder direct fuel injection type spark ignition engine provided with a fuel injection valve configured to directly inject fuel to a cylinder and an ignition plug configured to perform spark ignition for a gas mixture inside the cylinder. In a case where it is necessary to warm up an exhaust gas purifying catalyst disposed in an exhaust passage, the engine control device executes a catalyst warm-up operation in which a fuel is injected at a timing during the compression stroke, and at a timing when the fuel spray colliding with the piston crown surface moves toward the ignition plug along the shape of the piston crown surface, and in which the ignition timing is after compression top dead center. The engine control device advances the fuel injection timing in accordance with an increase in an estimation amount of a liquid fuel remaining on the top surface of the piston during execution of the catalyst warm-up operation.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: November 6, 2018
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Yoshihiro Imaoka, Takeshi Tsuyuki, Takao Inoue
  • Patent number: 10113499
    Abstract: An ECU has a fuel pressure sensor that detects fuel pressure inside of a common rail. The ECU detects the fuel pressure at a predetermined frequency and calculates a drop amount of the fuel pressure in accordance with fuel injection by fuel injectors based on the detected fuel pressure. The ECU acquires a fluctuation amount of a fuel injection amount of each of the fuel injectors based on the drop amount of the fuel pressure and learns an injection characteristic of each of the fuel injectors, the injection characteristic indicating a correlation between the fuel injection amount and the fluctuation amount of the fuel injection. In a case in which a detection timing of the fuel pressure is within a fuel injection period of a predetermined fuel injector, the ECU disallows the learning of the injection characteristic using the fuel pressure detected in the fuel injection period.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: October 30, 2018
    Assignee: DENSO CORPORATION
    Inventor: Akihiro Okamoto
  • Patent number: 10100719
    Abstract: A GDCI engine control system provides rapid heating of intake air to the combustion chamber when the engine is cold. The engine uses an intake air pathway that includes a compressor having a compressor inlet and a compressor outlet. A loop fluidly connects the compressor outlet to the compressor inlet. First and second valves are arranged in the loop and are arranged near the compressor outlet and the compressor inlet respectively. First and second passages converge at a first junction, and the first passage fluidly connects the first valve and the first junction. The second passage fluidly connects to the loop at a second junction arranged fluidly between the first and second valves. An intake air heat exchanger is arranged in the first passage and fluidly between the first valve and the first junction.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: October 16, 2018
    Assignee: DELPHI TECHNOLOGIES IP LIMITED
    Inventor: Wayne R. Moore
  • Patent number: 10067033
    Abstract: A method for estimating pressures at a gas engine using a real-time model-based observer is implemented by a pressure estimation computing device. The method includes receiving a design schema describing an intake manifold and a plurality of components associated with the gas engine, segmenting the design schema into a plurality of segments defining a plurality of sections of the gas engine, defining a fluid dynamics model associated with each of the plurality of segments, defining a plurality of interconnected elements based on the plurality of fluid dynamics models, receiving at least one pressure measurement from at least one of a plurality of sensors associated with each of the sections of the gas engine, estimating a plurality of pressure values at each section of the gas engine, and controlling fuel injection to at least one gas cylinder based on the estimated plurality of pressure values.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: September 4, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Rogier Sebastiaan Blom, Herbert Kopecek, Sharath Sridhar Aramanekoppa, Johannes Huber
  • Patent number: 10060363
    Abstract: There can be provided an engine control apparatus having a controller operable to receive input from a heat flux sensor arranged to measure combustion power within an internal combustion engine and to use said input in a control process to determine an adjustment to a controllable engine operation parameter.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: August 28, 2018
    Assignee: Lappeenranta University of Technology
    Inventors: Juha Jaakko Pyrhonen, Raimo Juntunen, Tatu Musikka, Olli Pyrhonen, Andrey Mityakov, Sergey Z. Sapozhnikov, Vladimir Y. Mityakov
  • Patent number: 10006397
    Abstract: A data analyzer for analyzing characterization data to form fuel injection control, including a data obtainer that obtains data from a detection signal of a sensor as a time-series data that changes over time. The data analyzer further includes a differentiator that differentiates the time-series data obtained by the data obtainer, a moving averager that calculates a moving average of the differentiated time-series data by the differentiator, an identifier that identifies a waveform of the time-series data based on the moving average calculated by the moving averager, and a data characterizer characterizes the time-series data based on the waveform of the time-series data identified by the identifier. As such, noise is removed as much as possible, and characteristics of time-series data become analyzable.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: June 26, 2018
    Assignee: DENSO CORPORATION
    Inventors: Naoyuki Yamada, Ken Uchiyama
  • Patent number: 10001052
    Abstract: Where a relationship between maximum heat release rate timing and a first combustion period length (that is, a reference relationship) in the case where an engine rotation speed of a spark-ignition internal combustion engine is a selected speed and a valve opening characteristic of an intake valve is a reference characteristic is expressed by the function are f=f(?dQpeak) where ?dQpeak denotes the maximum heat release rate timing and aref denotes the first combustion period length, when the valve opening characteristic of the intake valve changes to a specific characteristic from this state, a first combustion period length for selected maximum heat release rate timing is estimated on the basis of the mathematical expression a=f(?2)+?a1 where ?2 denotes the selected maximum heat release rate timing and a denotes the first combustion period length.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: June 19, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Munenori Imaeda
  • Patent number: 9989003
    Abstract: Various methods and systems are provided for diagnosing a condition of a cylinder of an engine. In one example, a method includes adjusting recirculated exhaust gas responsive to a determined emission value and indicating insufficient combustion of one or more engine cylinders based on an amount by which the recirculated exhaust gas is adjusted.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: June 5, 2018
    Assignee: General Electric Company
    Inventor: Milan Palinda Karunaratne
  • Patent number: 9964061
    Abstract: The engine controlling apparatus includes a selector and a changer. The selector selects one of a plurality of injection modes according to the operating condition of an engine, where injection rates of a plurality of injectors differ among the injection modes. The changer changes a map specifying a reference value of a detection signal detected by a first sensor according to the injection mode.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: May 8, 2018
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Akihiro Tsuchiya, Mitsuhiro Yuasa, Kensuke Kondo, Yuji Sato
  • Patent number: 9957910
    Abstract: A diagnostic system for an engine includes: a plurality of cylinders, in-cylinder injectors, port injectors and an electronic control unit. The electronic control unit configured to make an abnormality diagnosis of an air-fuel ratio due to the in-cylinder injectors and then to make an abnormality diagnosis of the air-fuel ratio due to the port injectors. The electronic control unit is configured to make an abnormality diagnosis of the air-fuel ratio due to the in-cylinder injectors in an operating situation in which fuel is injected from only the in-cylinder injectors, and to make an abnormality diagnosis of the air-fuel ratio due to the port injectors by increasing a ratio of an injection amount of the port injectors when the electronic control unit has diagnosed that there is an abnormality of the air-fuel ratio in an operating situation in which fuel is injected from both the in-cylinder injectors and the port injectors.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: May 1, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Takashi Matsumoto
  • Patent number: 9932920
    Abstract: A control device includes a cylinder pressure sensor, a driving condition detector, a reference crank angle setter, a reference cylinder pressure calculator, an EGR ratio estimator, and a controller. The cylinder pressure sensor detects a cylinder pressure inside a cylinder. The driving condition detector detects a driving condition in an internal combustion engine. The reference crank angle setter calculates, according to the driving condition, a reference crank angle immediately before which mixture gas starts combusting. The reference cylinder pressure calculator calculates a reference cylinder pressure at the reference crank angle based on temperature characteristics of a heat capacity ratio of the mixture gas under a condition. The EGR ratio estimator calculates an EGR ratio based on a pressure difference between the reference cylinder pressure and the cylinder pressure at the reference crank angle. The controller controls the internal combustion engine according to the EGR ratio.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: April 3, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Shinichi Okunishi, Ken Ogawa
  • Patent number: 9926873
    Abstract: An internal combustion engine control apparatus includes a cylinder pressure sensor, a driving condition detector, a reference crank angle setter, a reference cylinder pressure calculator, an air-fuel ratio estimator, and a controller. The cylinder pressure sensor detects a cylinder pressure. The driving condition detector detects a driving condition in an engine. The reference crank angle setter calculates a reference crank angle immediately before which an air-fuel mixture starts combusting in accordance with the driving condition. The reference cylinder pressure calculator calculates a reference cylinder pressure in the cylinder at the reference crank angle based on temperature characteristics of a specific-heat ratio of the air-fuel mixture under a condition. The air-fuel ratio estimator calculates an air-fuel ratio based on a pressure difference between the reference cylinder pressure and the cylinder pressure at the reference crank angle.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: March 27, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Shinichi Okunishi, Ken Ogawa
  • Patent number: 9863339
    Abstract: An engine control apparatus includes an engine information detector for detecting engine information including an engine speed, a fuel amount, an air amount, a boost pressure, injection timing, an intake air temperature, an atmospheric pressure, and an atmospheric temperature, a combustion pressure sensor for detecting a combustion pressure of an engine, and a controller performing an IMEP control for adjusting a main injection amount and a combustion noise control for adjusting a pilot injection amount by using the engine information detected by the engine information detector and the combustion pressure detected by the combustion pressure sensor, and calculating a final main injection correction amount and a final pilot injection correction amount by using an IMEP pilot correction amount and an IMEP correction amount outputted from the IMEP control and a combustion noise correction amount outputted from the combustion noise control.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: January 9, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventor: Kyoungchan Han
  • Patent number: 9840998
    Abstract: An engine control system includes first and second control modules. The first control module determines a fuel combustion parameter. The second control module determines a fuel delivery parameter based on the fuel combustion parameter. The fuel combustion parameter includes at least one of (i) a total amount of heat released by a volume of fuel during a combustion cycle and (ii) a rate at which heat is released during the combustion cycle. The fuel delivery parameter includes at least one of (i) a duration of time over which the volume of fuel is delivered to a cylinder, (ii) a time at which a fuel injector starts delivering the volume of fuel to the cylinder, and (iii) a fuel pressure in a fuel rail.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: December 12, 2017
    Assignee: AVL POWERTRAIN ENGINEERING, INC.
    Inventors: Gustav R. Johnson, Gary L. Hunter
  • Patent number: 9835514
    Abstract: An internal combustion engine knock determining device includes a vibration detector that produces a signal corresponding to engine vibration, an intensity computing unit that retrieves vibrational components in a plurality of frequency regions in which vibration intensity peaks are located when knock occurs, a background-noise computing unit that calculates background noise caused by factors other than knock, a frequency computing unit that determines specific frequency regions from which to determine whether knock is occurring by excluding certain frequency regions designated as frequency regions requiring exclusion due to the intensity of false-detection causing noise as a proportion of the background noise in the certain regions, and a knock determining unit that determines the occurrence of knock based on the vibration intensity in the specific frequency regions obtained by excluding the frequency regions requiring exclusion, wherein the number of specific frequency regions is increased to improve the ac
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: December 5, 2017
    Assignee: NISSAN MOTOR CO., LTD.
    Inventor: Yuji Sasaki
  • Patent number: 9816446
    Abstract: A knock determination apparatus for an internal combustion engine calculates a knock intensity based on an output signal of an in-cylinder pressure sensor in a gate range for knock determination. When the calculated knock intensity is larger than a knock determination threshold value, the knock determination apparatus determines that knock has occurred. Further, the knock determination apparatus calculates an integrated intensity which is an integrated value of knock intensities that are equal to or larger than a knock intensity at a point of 97% or more in a target knock level among knock intensities that are calculated at the respective cycles during continuous N cycles in the same cylinder. Furthermore, the knock determination apparatus corrects a knock determination threshold value so that the difference between the calculated integrated intensity and a target integrated intensity becomes small.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: November 14, 2017
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, FUJITSU TEN LIMITED
    Inventors: Yoshihiro Sakayanagi, Sumiaki Hashimoto