Patents Examined by Johnny H. Hoang
  • Patent number: 10570850
    Abstract: A direct-injection internal combustion engine is controlled such that an injection count of multiple-stage injection is switched according to an operating region, and the multiple-stage injection is performed. The multiple-stage injection divides fuel into multiple times in one combustion cycle, and injects the fuel. Fuel vapor generated in a fuel tank as evaporated fuel is supplied to the internal combustion engine. An operating region in which the injection count of the multiple-stage injection is large is controlled to be narrower when an amount of the evaporated fuel supplied to the internal combustion engine is large, compared with a case of the amount of the evaporated fuel being not large.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: February 25, 2020
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Takeshi Tsuyuki, Takao Inoue
  • Patent number: 10557419
    Abstract: A method of controlling a fuel injection of a diesel engine for performing a plurality of fuel injections to cause a plurality of combustions inside a cylinder in one combustion cycle, is provided, which includes acquiring an oxygen concentration inside the cylinder, performing, on compression stroke, the plurality of fuel injections at substantially even injection intervals while increasing the injection intervals as the oxygen concentration decreases, and performing, after the plurality of fuel injections, another fuel injection including a larger injection amount than in the plurality of fuel injections, near a top dead center of the compression stroke.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: February 11, 2020
    Assignee: Mazda Motor Corporation
    Inventors: Naotoshi Shirahashi, Tsunehiro Mori, Takeshi Matsubara, Takeshi Inazumi, Keisuke Kawahara
  • Patent number: 10557436
    Abstract: A method of controlling a fuel injection of a diesel engine for performing a plurality of fuel injections to cause a plurality of combustions inside a cylinder in one combustion cycle, is provided, which includes performing, on compression stroke, the plurality of fuel injections at substantially constant injection intervals while increasing an injection amount as an in-cylinder oxygen concentration decreases, and performing, after the plurality of fuel injections, another fuel injection including a larger injection amount than in the plurality of fuel injections near a top dead center of the compression stroke.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: February 11, 2020
    Assignee: Mazda Motor Corporation
    Inventors: Naotoshi Shirahashi, Tsunehiro Mori, Takeshi Matsubara, Takeshi Inazumi, Tetsuya Fujioka
  • Patent number: 10554845
    Abstract: An engine output control unit of a work vehicle is configured to set a target rotation speed of an engine by using an engine output torque curve, to control an output of the engine. The engine output control unit is configured to control the output of the engine so as to set torque to be higher than torque at an actual rotation speed obtained using the engine output torque curve. Typically, when the actual rotation speed of the engine becomes smaller than the target rotation speed, the engine output control unit sets an engine output torque curve that is greater in torque at the actual rotation speed than the engine output torque curve, and switches control of the output of the engine from control performed using the engine output torque curve to control performed using the engine output torque curve.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: February 4, 2020
    Assignee: KOMATSU LTD.
    Inventors: Koji Ohigashi, Kimihiro Mori, Kazuki Kumagai
  • Patent number: 10539098
    Abstract: A control system of a compression-ignition engine is provided, which includes an engine configured to cause combustion of mixture gas inside a combustion chamber, a spark plug, and a controller configured to operate the engine. The combustion is performed in a given mode in which, after the spark plug ignites the mixture gas to start combustion, unburned mixture gas combusts by self-ignition. The controller has a heat amount ratio changing module configured to change, according to an engine operating state, a heat amount ratio as an index relating to a ratio of a heat amount generated when the mixture gas combusts by flame propagation with respect to a total heat amount generated when the mixture gas inside the combustion chamber combusts. The controller causes the changing module to increase the heat amount ratio at a high engine speed than at a low engine speed.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: January 21, 2020
    Assignee: Mazda Motor Corporation
    Inventors: Atsushi Inoue, Kota Matsumoto, Yusuke Kawai, Toru Miyamoto, Yudai Koshiro
  • Patent number: 10533527
    Abstract: An air intake control apparatus for a vehicle may include an intake passage configured such that a flow pipe for a flow of intake air is divided into first and second division passages and the first and second division passages communicate with the same combustion chamber, a variable valve provided in the first division passage to adjust an opening degree of the first division passage according to an rotation angle of a motor connected to a central shaft of the variable valve, and an operation valve provided in the second division passage to open or close the second division passage by ON/OFF control.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: January 14, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jin Ha Kim, Seung Jae Kang
  • Patent number: 10533512
    Abstract: A combustion pressure detection method and a combustion pressure detection apparatus of an internal combustion engine that can detect combustion pressure by using a crank angle sensor in an accurate and easy way. A relationship between a crank angle sensor signal and a combustion pressure signal is previously recorded. As a result, even if the combustion pressure sensor fails, the combustion pressure is detected by collating the crank angle sensor signal with the relationship.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: January 14, 2020
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventor: Eiichirou Oohata
  • Patent number: 10526993
    Abstract: A method for checking the operation of a high-pressure fuel supply unit for an internal combustion engine, consisting in driving a high-pressure fuel injection pump by a starter, and after the engine is synchronised and fuel injection into the cylinders is shut off, in defining an initial base pressure in a high-pressure rail, in activating the injection pump by issuing successive timing and angle-setting commands, on the basis of the initial pressure, and in comparing the first pressure and the second pressure obtained in the rail by these timing and angle-setting commands, and/or by comparing at least one of the pressures with a reference pressure in order to check the operation of the high-pressure fuel supply unit for the internal combustion engine.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: January 7, 2020
    Assignees: Continental Automotive France, Continental Automotive GmbH
    Inventors: Yves Agnus, Renaud Andre, Nicolas Girard
  • Patent number: 10519881
    Abstract: Embodiments of the present invention described herein include a control system for a vehicle. The control system includes a control module that dynamically computes a first power value (PC) to be generated by a compressor based on an estimation model of the compressor. The control system further includes a power term estimator module that dynamically computes a second power value (PU) based on a measured compressor pressure ratio (?cmeas) of the compressor. The control module further computes an amount of power to be generated by an engine (Ptdes) by adding the first power value and the second power value. The control module further adjusts an actuator position to generate the amount of power to be generated.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: December 31, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Giuseppe Conte, Vincenzo Alfieri, Francesco Castorina, Stefano Sarinelli
  • Patent number: 10519918
    Abstract: A starter for starting an engine in a vehicle, which includes a motor and an output shaft that rotates by receiving torque from the motor. The starter also includes a pinion movable body that includes a pinion for transmitting the torque of the motor to a ring gear of the engine. The pinion movable body is provided on an outer circumference of the output shaft integrally with the pinion in a manner allowing movement along an axial direction. The solenoid assembly consist of two divisions, one for to pull up the drive in the solenoid and the other to activate the starter motor by energizing the electronic circuit.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: December 31, 2019
    Assignee: COMSTAR AUTOMOTIVE TECHNOLOGIES PVT LTD
    Inventors: Muruganandam Radhakrishnan, Thulsirajan Ganesan, Sathishkumar Manoharan, Sarankumar Ramakrishnan, Govindhan Krishnan
  • Patent number: 10513990
    Abstract: A PCM (100) selects one of a CI mode or an SI mode based on the operating conditions of the engine (1). In the CI mode, the engine (1) is operated by compression ignition combustion. In the SI mode, the engine (1) is operated by spark ignition combustion. if, while the engine (1) is being operated in the CI mode, a determination is made that an estimated value (Tc) of the catalyst temperature is lower than or equal to a warming start temperature (Ts), the PCM (100) further performs first warming control to assign four cylinders (18) as CI and SI cylinders, which perform the compression ignition combustion and the spark ignition combustion, respectively, such that the four cylinders (18) alternately perform the compression ignition combustion and the spark ignition combustion in accordance with the order of combustion of the cylinders.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: December 24, 2019
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Toshiaki Takahashi, Masanari Sueoka, Masatoshi Hidaka
  • Patent number: 10513964
    Abstract: An engine cooling system is provided. The system includes a cylinder block formed that has a block coolant chamber formed therein and a front insert that is inserted downward of an upper portion of a front side and receives coolant in the block coolant chamber to adjust a flow of the coolant. Additionally, a rear insert is inserted downward of an upper portion of a rear side and exhausts the coolant in the block coolant chamber to adjust the flow of the coolant.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: December 24, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Hyo Jo Lee, Yonggyu Lee, Woo Yeol Jung, Tae Man Chung
  • Patent number: 10508617
    Abstract: An internal combustion engine includes a combustion chamber. The chamber includes a body that is movable in the chamber to vary the chamber volume and contains a catalyst. First valving is operable to admit an intake gas into the chamber and second valving connected with an aqueous fluid supply system is operable to admit an aqueous fluid and a steam reforming fuel into the chamber. A controller is configured to cause the second valving to admit a aqueous fluid and an amount of the steam reforming fuel into the chamber and when a predetermined condition exists in the chamber during compression of the intake gas to absorb heat generated by the compression of the intake gas in the presence of the catalyst to promote a steam reformation process to separate hydrogen from the steam reforming fuel or the aqueous fluid.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: December 17, 2019
    Assignee: HYDRO-JECT, LLC
    Inventors: Eran Sher, Ian Kurt Rosen
  • Patent number: 10502153
    Abstract: A method for controlling an engine of a vehicle going downhill with a throttle operator in an idle position, and a driven pulley of a CVT initially having a driven pulley speed below a predetermined driven pulley speed, includes: determining a first speed, the first speed being proportional to the driven pulley speed; as the driven pulley speed increases and the driven pulley speed is below the predetermined driven pulley speed, increasing an actual engine speed as the driven pulley speed increases; the actual engine speed being an engagement speed when the driven pulley speed is the predetermined driven pulley speed; and as the driven pulley speed continues to increase and the driven pulley speed is above the predetermined driven pulley speed: controlling the engine to operate under conditions corresponding to an engine braking speed thereby causing engine braking, the engine braking speed being less than the actual engine speed.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: December 10, 2019
    Assignee: BOMBARDIER RECREATIONAL PRODUCTS INC.
    Inventor: Jean-Philippe Houle
  • Patent number: 10480461
    Abstract: A combustion assist device is provided in an internal combustion engine provided with a fuel injector for injecting at least a portion of fuel into an intake manifold. Further, the combustion assist device is provided with an electrode element which is provided in the intake manifold and to which a high frequency high voltage is applied. The electrode element includes a dielectric material plate, a first metal conductor, and a second metal conductor. The dielectric material plate includes a first surface and a second surface, and divides a portion of the intake manifold into a first flow path on a first surface side and a second flow path on a second surface side. The first metal conductor is provided on the first surface. The second metal conductor is provided on the second surface.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: November 19, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventor: Tetsuya Honda
  • Patent number: 10480479
    Abstract: A control device for an engine in which partial compression-ignition combustion including SI combustion performed by forcibly combusting a portion of mixture gas inside a cylinder followed by CI combustion performed by causing the rest of the mixture gas inside the cylinder to self-ignite is executed within a part of an operating range of the engine, is provided. The device includes a detector configured to detect a parameter related to noise caused by the combustion inside the cylinder, a memory configured to store a characteristic defining a relationship between a start timing of the CI combustion and a combustion noise index, and a processor configured to specify a given combustion noise index value based on the detection value of the detector, and control the start timing of the CI combustion.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: November 19, 2019
    Assignee: Mazda Motor Corporation
    Inventors: Kenichi Nakashima, Keitaro Ezumi, Yuichiro Tsumura, Daisuke Tanaka, Taiki Maiguma, Takuji Okumura, Kensuke Ashikaga, Masayoshi Higashio
  • Patent number: 10473069
    Abstract: A protective structure includes: a base including a base main wall attached to a vehicle body wall defining a part of an engine room and extends vertically, a stay fixed to the base main wall to hold a fuel line, and a base extension wall extending from an upper part of the base main wall in a direction away from the vehicle body wall; a cover including a cover main wall disposed to oppose the base main wall and to be located in front of the stay and the fuel line, a cover extension wall extending from the cover main wall along the base extension wall, and a leg extending from the cover main wall toward the base main wall below the cover extension wall; and a fastening member extending vertically through overlapping parts of the base extension wall and the cover extension wall to fasten the base and cover.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: November 12, 2019
    Assignee: Honda Motor Co., Ltd.
    Inventor: Takumi Sasaki
  • Patent number: 10465601
    Abstract: A variable nozzle unit in a variable-capacity supercharger includes: a first nozzle ring disposed in a turbine housing and formed with a plurality of first support holes; a second nozzle ring disposed to face the first nozzle ring and formed with a plurality of second support holes that are through-holes corresponding to the first support holes; a plurality of variable nozzles supported rotatably by the first and second nozzle rings; and a plurality of seal members disposed between a turbine scroll channel and a turbine wheel side. The variable nozzles include first nozzle shafts that are rotatably supported by the first support holes, and second nozzle shafts that are rotatably supported by the second support holes, and a first seal member included in the plurality of seal members is provided at the turbine wheel side relative to the second support holes.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: November 5, 2019
    Assignee: IHI Corporation
    Inventors: Kengo Ikeda, Yoshimitsu Matsuyama
  • Patent number: 10458493
    Abstract: A control device according to an embodiment includes a storage, a determining unit, and a driving unit. The storage stores therein information on a hysteresis area of an actuator. The determining unit determines, based on a control mode, a target current value according to the hysteresis area whose information is stored in the storage. The driving unit supplies a driving current according to the target current value determined by the determining unit to the actuator.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: October 29, 2019
    Assignee: FUJITSU TEN Limited
    Inventors: Sumiaki Hashimoto, Natsuki Yokoyama
  • Patent number: 10458436
    Abstract: A rotor for a gas turbine is disclosed which includes alternating first and second set of rotor blades, the first set of rotor blades having a baseline profile and the second set of rotor blades having a profile with a cutback relative to the baseline profile, the cutback removing a portion of the baseline profile surrounding a maximum deflection point of a selected natural vibration mode. The cutback may be a leading edge cutback at a span position located a distance away from the hub between 50% and 90% of the total span length. The selected natural vibration mode may be a natural vibration mode higher than the 1st natural vibration mode, more specifically may be the 4th natural vibration mode.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: October 29, 2019
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Ignatius Theratil, Krishna Balike