Patents Examined by Carl C Staubach
  • Patent number: 10995716
    Abstract: A fuel supply system includes a fuel injector having an inlet conduit, a nozzle opening, and a valve needle which is moveable to selectively permit and prevent flow of fuel. The inlet conduit extends along an axis and includes an inlet conduit shoulder which is traverse to the axis. A fuel distribution conduit, which supplies fuel to the fuel injector, has external threads. A connection nut has internal threads which threadably engage the external threads of the fuel distribution conduit and also has an internal shoulder which is traverse to the axis. A first ring sector and a second ring sector each engage both the inlet conduit shoulder and the internal shoulder such that tightening of the connection nut causes the first ring sector and the second ring sector to be compressed between the inlet conduit shoulder and the internal shoulder.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: May 4, 2021
    Inventor: Ravish S. Masti
  • Patent number: 10989131
    Abstract: Various embodiments includes a method for determining energization data for an actuator of an injection valve of a motor vehicle comprising: receiving input data at a control unit; and determining the energization data based on the received input data into account with the control unit. Determining the energization data includes using a polynomial regression model.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: April 27, 2021
    Assignee: VITESCO TECHNOLOGIES GMBH
    Inventors: Tany Gargiso, Michael Kausche, Hans-Jörg Wiehoff
  • 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: 10961943
    Abstract: A method and a system for controlling combustion of a natural gas engine. The method includes: determining, based on a current operation parameter of a natural gas engine, an operation state of the natural gas engine, and calculating a total injection quantity of natural gas and pilot diesel required by the natural gas engine in the operation state; adopting a direct injection diffusion-combustion mode in a case that the operation state is an idle state or a low load state; adopting a natural gas homogeneous hybrid active control compression-ignition mode in a case that the operation state is a medium load state; configuring the total injection quantity into three parts including a compression-ignition natural gas injection quantity, a pilot diesel injection quantity, and a diffusion-combustion natural gas injection quantity in a case that the operation state is a high load state, and sequentially injecting them into a combustion chamber.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: March 30, 2021
    Assignee: WEICHAI POWER CO., LTD.
    Inventors: Xuguang Tan, Dehui Tong, Xiaoyan Wang, Zhijie Li, Xiaoying Xu, Qiang Zhang, Guoxiang Li
  • Patent number: 10961981
    Abstract: A method of controlling a wind turbine having a nacelle, a rotor, a rotating hub, a first rotor blade and at least a second rotor blade, both rotor blades being mounted to the hub. The method includes measuring the strain in the first rotor blade by a strain measurement device attached to the first rotor blade; and choosing the operational parameters of the wind turbine based on the measured strain such that fatigue damage of the second rotor blade is reduced. A wind turbine is controlled by such a method.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: March 30, 2021
    Assignee: Siemens Gamesa Renewable Energy A/S
    Inventors: John M. Obrecht, Karsten Schibsbye
  • Patent number: 10954881
    Abstract: It is hereby disclosed a method of controlling an injection apparatus of an internal combustion engine including setting a minimum value (QMIN) of a fuel quantity that can be injected into the internal combustion engine by the injection apparatus with one injection; preventing the injection apparatus from performing post-injections of fuel quantities having a smaller value than the minimum value (QMIN).
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: March 23, 2021
    Assignee: Kohler Co.
    Inventors: Fabio Panini, Felice Di Iorio, Mario de Monte
  • Patent number: 10947940
    Abstract: A fuel delivery system includes a fuel pump assembly, an extension tube, and an injection nozzle assembly. The fuel pump assembly includes a pumping chamber, an inlet valve configured to direct fuel to the pumping chamber, a piston configured to pressurize fuel in the pumping chamber, an electromagnetic actuator operatively coupled to the piston, and an outlet check valve configured to direct pressurized fuel out of the pumping chamber. The electromagnetic actuator is configured to produce a force sufficient to move the piston to pressurize fuel in the pumping chamber and direct pressurized fuel through the outlet check valve. The extension tube is located downstream of the outlet check valve, and the injection nozzle assembly is located downstream of the extension tube. The injection nozzle assembly includes a nozzle check valve configured to selectively permit pressurized fuel received from the outlet check valve through the extension tube to exit the fuel delivery system.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: March 16, 2021
    Assignee: Briggs & Stratton, LLC
    Inventor: Lihang Nong
  • 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: 10934961
    Abstract: A control device for controlling an engine including an injector that supplies fuel into a cylinder and an in-cylinder pressure sensor that detects an in-cylinder pressure being a pressure inside the cylinder, is provided. The device includes a processor configured to execute an abnormal combustion determining module to determine whether combustion of a mixture gas inside the cylinder is abnormal based on a detection value of the in-cylinder pressure sensor. The abnormal combustion determining module determines that an abnormal combustion has occurred in which progress of the combustion of the mixture gas is excessively fast, when an in-cylinder pressure intensity that is a spectrum value of a frequency component of an in-cylinder pressure waveform less than a given reference frequency is greater than or equal to a given determination intensity, the in-cylinder pressure waveform being detected by the in-cylinder pressure sensor.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: March 2, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Hiroki Morimoto, Takeshi Tsugawa
  • Patent number: 10934959
    Abstract: The occurrence of the misfire having a level at which exhaust purifying function of a catalyst is impaired (OT-level misfire) is detected. Upon the detection of the OT-level misfire, basic OT risk from the misfire is multiplied by a correction coefficient corresponding to the accumulated PM amount on the catalyst. The basic OT risk from the misfire is a basic value of OT risk from the misfire which is set based on the operating condition of the engine. The correction coefficient is set to a smaller value as the accumulated PM amount increases. Therefore, the OT risk from the misfire after the multiplication decreases as the accumulated PM amount increases. When a predetermined judgement condition with the OT risk from the misfire is established, it is judged that the misfire having the level occurs.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: March 2, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takuya Hishida, Toshikazu Kato, Hayato Imai
  • Patent number: 10934956
    Abstract: A method for controlling an internal combustion engine is provided, which includes defining a first area in which the engine operates in a stoichiometric combustion mode and a second area in which the engine operates in a lean combustion mode, on an operation map defined by the engine load and speed, and causing a controller to determine that an operation point on the operation map shifts from the first area to the second area based on signals from an accelerator opening sensor and a crank angle sensor, predict a length of time that the operation point stays in the second area, switch a combustion mode to the lean combustion mode when the predicted time is longer than a given period of time, and maintain the stoichiometric combustion mode when the predicted time is shorter than the given period of time.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: March 2, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Taiga Kamiji, Takuo Hirano, Chikako Ohisa, Yoshiaki Aritome
  • Patent number: 10920694
    Abstract: Various methods and systems are provided for an engine capable of receiving liquid and gaseous fuel. In one example, cylinder misfire may be identified based on a misfire monitor. The misfire monitor may detect misfire based on signals from a crankshaft sensor.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: February 16, 2021
    Assignee: TRANSPORTATION IP HOLDINGS, LLC
    Inventors: Paul Lloyd Flynn, Aninda Bhattacharya, Ganesasubramanian Murugesan, Milan Palinda Karunaratne, Daniel Cullen
  • Patent number: 10920734
    Abstract: An ignition device for an internal combustion engine with a charging coil, in particular disposed on a yoke core, with a starter wheel to induce a charging voltage in the charging coil by its rotation, with a first energy store which is connected to the charging coil via a rectifier, as well as with an electrical load which for its power supply, in particular during the starting process of the internal combustion engine is connected to a second energy store, wherein the second energy store is connected to the first energy store via a voltage converter. Furthermore, the invention relates to an internal combustion engine with such an ignition device and a method for its operation.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: February 16, 2021
    Assignee: PRUEFREX engineering e motion GmbH & Co. KG
    Inventors: Jochen Heubeck, Marek Lajda
  • Patent number: 10920678
    Abstract: A valve comprises a body having a gas inlet and outlet, a flap in the body,—a drive shaft which is rigidly connected to the flap, an actuator having a motor shaft, and a coupling of the motor shaft and the drive shaft. A mounting for the actuator on the body comprises a side wall defining a cavity and closed in part at angular sectors facing towards the inlet and towards the outlet. The wall has openings for circulating air between the inside and the outside of the cavity. A thermally insulating partition is between the body and the actuator and has a surface area which is greater than 50% of a cross section of the wall taken in a plane which is perpendicular to the axis of the shaft, and has an opening for receiving the shaft with a gap. A plate is connected to the shaft, which is axially interposed between the partition and the actuator, and covers the gap.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: February 16, 2021
    Inventors: Gilbert Delplanque, Raphael De Matos, Alain Mercier
  • Patent number: 10914261
    Abstract: An intake air cooling apparatus abnormality detection system for an engine includes a first intake air temperature sensor that detects an intake air temperature in an intake pipe at the downstream side of an intercooler and a second intake air temperature sensor that detects the intake air temperature in an intake manifold. An abnormality determination unit determines that an abnormality occurs in an intercooler cooling water circuit if a state in which at least one of a value based on an output from the first intake air temperature sensor and a value based on an output from the second intake air temperature sensor exceeds a predetermined threshold value continues for a certain time or longer when a load state determination unit determines that the engine is in a high load state.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: February 9, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Jyo Ishimasa, Hisashi Daicho
  • Patent number: 10900445
    Abstract: An exhaust gas recirculation cooler may include a heat exchanger block including a first mounting flange, a diffuser including a second mounting flange, and at least one non-return valve arranged between the heat exchanger block and the diffuser. The exhaust gas recirculation cooler may also include a valve carrier which supports the at least one non-return valve and on which a gasket is arranged. The heat exchanger block may be connected via the first mounting flange directly to the second mounting flange of the diffuser. The valve carrier may be arranged between the heat exchanger block and the diffuser, and with the gasket may seal a sealing point between the first mounting flange and the second mounting flange. The diffuser may include an outwardly closed recess with a peripheral rim structured to accommodate the valve carrier. The rim may define the second mounting flange.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: January 26, 2021
    Inventor: Oliver Grill
  • Patent number: 10900434
    Abstract: The occurrence of the misfire having a level at which exhaust purifying function of a catalyst is impaired (OT-level misfire) is detected. Upon the detection of the OT-level misfire, basic OT risk from the misfire is multiplied by a correction coefficient corresponding to the accumulated PM amount on the catalyst. The basic OT risk from the misfire is a basic value of OT risk from the misfire which is set based on the operating condition of the engine. The correction coefficient is set to a smaller value as the accumulated PM amount increases. Therefore, the OT risk from the misfire after the multiplication decreases as the accumulated PM amount increases. When a predetermined judgement condition with the OT risk from the misfire is established, it is judged that the misfire having the level occurs.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: January 26, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takuya Hishida, Toshikazu Kato, Hayato Imai
  • Patent number: 10894462
    Abstract: A system for controlling a compressor may include an engine controller that controls a fuel injection amount corresponding to an engine load and an opening amount of a throttle by reflecting a required torque required for an air conditioner (A/C), an operation information detector for detecting operation information according to driving state of the vehicle, a compressor that generates pressure during operation of the A/C, an air conditioner relay which is turned on when the air conditioner operates and is turned off when the A/C is stopped, and a controller which determines an engine negative pressure of an intake manifold, and when the cooling water temperature is lower than the predetermined temperature and the intake manifold pressure is lower than the first threshold value, a cold-start intake manifold negative pressure insufficient event is generated to reduce the A/C duty in accordance with the entry into a negative pressure recovery mode.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: January 19, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Tae Hun Jung, Jeong Sik Seo, Jaeyeon Moon
  • Patent number: 10883441
    Abstract: The fuel injection timing IT is changed based operation and environmental condition of the engine. If the injection timing IT is changed, the rate of fuel passing through meshes of the mesh member (i.e., the mesh passing rate) changes. If the mesh passing rate changes, the set-off position (i.e., the ignition position of the air-fuel mixture) is extended or shortened. Based on this, under the condition of high ignition performance (i.e., the second condition), the mesh passing rate is controlled to increase thereby the set-off position is extended. On the other hand, under the condition of low ignition performance (i.e., the first condition), the mesh passing rate is controlled to decrease thereby the extension of the set-off position is suppressed or prohibited.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: January 5, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Jun Kawakami
  • Patent number: 10876490
    Abstract: A controller for controlling a fuel injection valve and a fuel pressure adjustment mechanism sets an air-fuel ratio of a fuel-air mixture to be generated within a combustion chamber to be equal to or leaner than a theoretical air-fuel ratio, based on an operating condition of an engine; drives the fuel injection valve, based on the set air-fuel ratio; estimates a deposition amount of deposits on an injection hole of the fuel injection valve, based on an operating condition of the engine; causes the fuel pressure adjustment mechanism to increase the fuel pressure, when the estimated deposition amount of deposits exceeds a predetermined value; and restricts the fuel pressure from increasing, even when the estimated deposition amount of deposits exceeds the predetermined value, as long as the fuel-air ratio is set to an air-fuel ratio leaner than the theoretical fuel-air ratio.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: December 29, 2020
    Assignee: Mazda Motor Corporation
    Inventors: Kazuhiro Takemoto, Michio Ito, Masanari Sueoka, Kazuhiro Nishimura, Kouji Hadama, Masataka Sumita, Masami Nishida