Patents Examined by Hieu T. Vo
  • Patent number: 11143124
    Abstract: Methods and systems are provided for calibrating an effective area associated with an exhaust gas recirculation valve and/or a variable orifice associated with the exhaust gas recirculation valve. In one example, a method may include attaining a first steady-state intake pressure with the exhaust gas recirculation valve closed, determining a second steady-state intake pressure and a differential pressure across the variable orifice with the exhaust gas recirculation valve open, and estimating the variable orifice effective area based on the second steady-state intake pressure and the differential pressure. In this way, a calibration table may be updated for an exhaust gas recirculation control apparatus that includes an exhaust gas recirculation valve and a variable orifice, such that an actual amount of recirculated exhaust gas reflects a commanded amount.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: October 12, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Rani Kiwan, Imtiaz Ali, Gopichandra Surnilla
  • Patent number: 11118524
    Abstract: System, method, and apparatus for controlling performance of an engine in response to a set of outputs from a device to an engine control unit. The engine control unit receives profile parameters that are related to outputs of the device. The engine control unit engages a high performance functionality in response to a first signal. The engine control unit engages a high idle functionality in response to a second signal.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: September 14, 2021
    Assignee: GDP Tuning, LLC
    Inventors: Benjamin Tyler, Barry Pierce
  • Patent number: 11118519
    Abstract: A method of controlling a hybrid electric vehicle is provided. The method includes determining whether a condition for turning off an engine is satisfied and determining engine clutch disengaging time and residual purge gas consuming time from engine driving status information when the condition is satisfied. Engine clutch-engaged charging control time is determined from the engine clutch disengaging time and the residual purge gas consuming time. The method includes closing a purge control solenoid valve and starting to perform engine clutch-engaged charging control. The engine clutch-engaged charging control is maintained for the determined engine clutch-engaged charging control time and then engine clutch disengaging control is performed for the determined engine clutch disengaging time. The engine is stopped after the engine clutch disengaging control is performed.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: September 14, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Seung Han Lee, Il Kwon Park, Dae Heung Lee, In Eok Cho, Jeong Ho Seo
  • Patent number: 11118526
    Abstract: The disclosure provides a combustion abnormality detecting device, a combustion abnormality detecting method, and a non-transitory computer-readable storage medium, a misfire detection accuracy is increased by increasing a piezoelectric detection accuracy. A charge amplifier (210) outputting a voltage signal corresponding to a charge generated by a piezoelectric element (35) in response to a received pressure, a drift component extracting part (230) extracting a drift component of the piezoelectric element (35), a drift correcting part (250) generating a correction signal for removing the drift component based on the extracted drift component and feeding back the correction signal to an input side of the charge amplifier (210), and a misfire detecting part (400) performing misfire detection based on the correction signal are included.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: September 14, 2021
    Assignee: MIKUNI CORPORATION
    Inventors: Satoru Fujisaki, Katsuhiko Fukui
  • 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: 11078863
    Abstract: An abnormality determination apparatus for an internal combustion engine in which an intake passage upstream of a supercharger and a crankcase are connected by a breather line includes: an intake flow rate detection unit that detects an intake flow rate in the intake passage; and an abnormality determination unit that determines abnormality of the breather line. The abnormality determination unit accumulates a value calculated from a rotation second-order component of a fluctuation waveform of the intake flow rate over a predetermined period of time and determines the abnormality of the breather line when the accumulated value is less than a predetermined threshold.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: August 3, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Toru Sekiguchi, Takashi Konomoto, Toshifumi Yoshida
  • Patent number: 11073094
    Abstract: Methods and systems are provided for monitoring corking of a valve in a fuel vapor line during diagnostics of the fuel vapor system. In one example, a method may include, upon sealing the fuel vapor system during a diagnostic routine, estimating a threshold pressure of the fuel vapor system based on a fuel level in the fuel tank, and in response to an estimated pressure of the fuel system decreasing to the threshold pressure, opening a canister vent valve coupled to a vent line of the fuel vapor system.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: July 27, 2021
    Assignee: Ford Global Technologies, LLC
    Inventor: Aed M. Dudar
  • Patent number: 11072251
    Abstract: Methods and systems are provided for preparing an energy receiving apparatus of a vehicle for receiving an increase in a level of energy storage prior to a vehicle reaching an energy replenishment station for receiving the increase. In one example, a method comprises preparing an energy receiving apparatus for receiving an increase in a level of energy storage while the vehicle is traveling to the energy replenishment station, in response to a vehicle operator confirming at the controller an intent to stop at the energy replenishment station to increase the level of energy storage at the energy receiving apparatus. In this way, a time-frame for increasing the energy level increase may be reduced as compared to situations where such preparations are not undertaken.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: July 27, 2021
    Assignee: Ford Global Technologies, LLC
    Inventor: Aed Dudar
  • 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: 11030831
    Abstract: A fuel efficiency estimation system includes: a velocity profile calculation unit to calculate a velocity profile indicating a change in velocity of a motor vehicle traveling a traveling route; a velocity disturbance calculation unit to calculate, based on disturbance information indicating a disturbance event occurring on the traveling route and traveling history information collected from the motor vehicle traveling the traveling route, an attenuation factor, which is a ratio of attenuation of the velocity of the motor vehicle traveling the traveling route, as a velocity disturbance correction coefficient; and a fuel efficiency calculation unit to calculate fuel efficiency of the motor vehicle traveling the traveling route by using the velocity profile and the velocity disturbance correction coefficient.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: June 8, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tomoharu Takeuchi, Norimitsu Nagashima, Takeshi Takeuchi
  • Patent number: 11011334
    Abstract: An electromagnetic switch for a starting device of an internal combustion engine may include a coil carrier having a carrier wall enclosing a cavity, a coil winding, a piston, and a ferromagnetic bypass body. During operation, the coil winding may provide a magnetic field within the cavity. The piston may be disposed in a passive position and may be adjusted axially in a direction of a core. The coil winding may have a coil wire which may be wound around the carrier wall in a first winding direction and an opposing second winding direction. The ferromagnetic bypass body may surround the cavity and may be arranged radially between the cavity and the coil winding. In the passive position of the piston, the bypass body may axially overlap the axial gap. At least one winding of the second winding section may axially overlap the bypass body.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: May 18, 2021
    Inventor: Dejan Manfreda
  • Patent number: 11008965
    Abstract: A control device for a high pressure fuel pump (33) for fuel injection (14) in which values of at least seven parameters of an engine speed, an engine load, a lubrication oil temperature, an amount of fuel supplied to the high pressure fuel pump (33), a temperature of intake air fed into the engine, a temperature of fuel discharged from the high pressure fuel pump (33), and a vehicle speed are acquired, and a learned neural network learned in weights using acquired values of the seven parameters as input values of the neural network and using as training data the temperature of fuel discharged from the high pressure fuel pump (33) acquired after a fixed time period from when acquiring the values of the seven parameters is stored, At the time of an engine operation, the temperature of fuel discharged from the high pressure fuel pump (33) after the fixed time period is estimated by using the learned neural network from the current estimated temperature of fuel discharged from the high pressure fuel pump (33).
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: May 18, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Harufumi Muto, Naoya Okubo, Akihiro Katayama, Yosuke Hashimoto
  • Patent number: 11002215
    Abstract: A controller for controlling a fuel injection valve and a fuel pressure adjustment mechanism integrates a deposition amount of deposits per unit time, and estimates a deposition amount of deposits on an injection hole of the fuel injection valve. The controller causes the fuel pressure adjustment mechanism to increase a fuel pressure, when the estimated deposition amount exceeds a predetermined value, and corrects the unit deposition amount acquired by the deposition amount estimation according to the set fuel injection timing of the fuel injection valve. The controller corrects such that as compared with the unit deposition amount when the fuel injection timing is set to a first timing away from a top dead center of the piston by a first period, the unit deposition amount decreases when the fuel injection timing is set to a second timing away by a second period longer than the first period.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: May 11, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Kazuhiro Takemoto, Michio Ito, Masanari Sueoka, Kazuhiro Nishimura, Kouji Hadama, Masataka Sumita, Masami Nishida
  • Patent number: 10995686
    Abstract: An evaporated fuel processing device that includes a pump configured to supply purge gas, which includes evaporated fuel in a fuel tank, to an intake passage of an engine through a purge passage; a controller configured to control the pump; and a detecting unit configured to acquire a gas amount introduced to the intake passage while the pump is being driven in a stable state where an air amount introduced from open air to the intake passage is stable, and configured to detect, by using change in the acquired gas amount, a state where the purge gas is unable to be normally supplied from the purge passage to the intake passage.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: May 4, 2021
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    Inventor: Daisaku Asanuma
  • Patent number: 10995681
    Abstract: A combustion control device for an engine includes a plurality of cylinders, a surge tank disposed in an intake path to the cylinders, an independent intake passage connecting the surge tank and an intake port of each of the cylinders, a fuel injection valve that is disposed for each of the cylinders and that supplies fuel into each of the cylinders, and a control unit that controls a fuel injection amount of each of the fuel injection valves according to an engine operating state. The control unit corrects a target fuel injection amount of each of the cylinders, the target fuel injection amount being determined according to the engine operating state, based on a re-intake correction amount set in each of the cylinders according to a re-intake amount of intake air from the intake port in internal EGR in each of the cylinders.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: May 4, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Masanari Sueoka, Junichi Taga, Hideki Omori, Keiji Maruyama, Tatsuhiro Tokunaga, Takuya Ohura, Toru Miyamoto, Tomohiro Nishida, Kenji Tanimura, Shinji Takayama, Yusuke Kawai, Atsushi Inoue
  • Patent number: 10989161
    Abstract: An ignition device includes: a primary coil including a first winding and a second winding connected in series to the first winding; a secondary coil connected to a spark plug and magnetically coupled to the primary coil; a first switch that opens or closes the electrical path between the first terminal and the ground; a second switch that opens or closes the electrical path between the power source and the second terminal; a third switch that opens or closes the electrical path between the power source and the connection point; a fourth switch that opens or closes the electrical path between the second terminal and the ground; and a switch control unit that controls the opening and closing of each switch to open or close each electrical path.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: April 27, 2021
    Assignee: DENSO CORPORATION
    Inventors: Takashi Ohno, Keiko Miyake, Yasuo Kakumae, Kanechiyo Terada
  • Patent number: 10989126
    Abstract: Systems and methods for operating an internal combustion engine that includes an oxygen sensor are described. In one example, a voltage that is applied to a heating element of an oxygen sensor is integrated to determine a resistance of the heating element. The resistance of the heating element is the basis for adjusting voltage applied to the heating element during subsequent engine starts.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: April 27, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Hao Zhang, Christopher Paul Glugla, Jacobus Hendrik Visser, Richard E. Soltis
  • Patent number: 10989149
    Abstract: An internal combustion engine includes combustion chambers, each having a controllable intake valve opening and closing an intake port, a controllable exhaust valve opening and closing an exhaust port, a piston displaceable back and forth in the combustion chamber between a top dead center and a bottom dead center, and a fuel injector. The engine further including an intake manifold connected to the intake port of each combustion chamber. The engine can be operated in a low load mode, wherein each combustion chamber is driven in four-stroke operation including a 720 crank angle degrees cycle, and opens the intake port during the exhaust stroke, the intake port starting to open in 610-690 CAD, closing the exhaust port during the exhaust stroke, becoming fully closed in 630-710 CAD, forcing exhaust gas into the intake manifold by the piston, and mixing fuel and exhaust gas in the intake manifold.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: April 27, 2021
    Assignee: FREEVALVE AB
    Inventors: Anders Höglund, Urban Carlson
  • Patent number: 10981556
    Abstract: Embodiments of the subject matter disclosed herein relate to controlling engine operating points and power for full throttle command in an off-highway vehicle, such as a diesel electric haul truck, to increase fuel efficiency. In one example, a system includes an engine and a controller. The controller is configured to determine a target engine horsepower and associated target engine speed, command the engine to operate at a first engine speed above the target engine speed, adjust a load placed on the engine to reach the target engine speed, and command the engine to operate at a second engine speed to reach the target engine horsepower.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: April 20, 2021
    Assignee: TRANSPORTATION IP HOLDINGS, LLC
    Inventors: Henry Todd Young, Jason Daniel Kuttenkuler, Jeffrey John Wolff, Aaron Craig Mellinger
  • Patent number: 10975818
    Abstract: A pump unit for feeding fuel, in particular diesel fuel, to an internal-combustion engine; the pump unit comprising a head (2) inside which a cylinder (3) is formed along an axis; a pumping piston (4) housed inside the cylinder and comprising a head portion (24) inside the cylinder and an opposite foot portion (23) projecting outside the cylinder; wherein the piston is slidable inside the cylinder in a reciprocating manner between a first position and a second position where the foot projects from the cylinder by a greater or smaller amount respectively; and wherein the outer surface of the piston comprises a portion (16) with a surface finish so as to have less friction and a greater lubricant-retaining capacity than the remainder of the outer surface of the piston; the portion extending along the axis between the head of the piston and a first intermediate point (17) in the first position of the piston, the first intermediate point being inside the cylinder.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: April 13, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Cristina Romita, Angela Mastai, Antonio Diaferia