Patents Examined by Phutthiwat Wongwian
  • Patent number: 10690031
    Abstract: A method for treating exhaust gas emitted by an internal combustion engine (ICE) in a hybrid architected motor vehicle with an electric motor. The method includes disposing a heater in the exhaust, disposing a first Lean NOx Trap (LNT) downstream of the heater, disposing a second LNT downstream of the first LNT, disposing a passive selective catalytic reduction (SCR) downstream of the second LNT, disposing a hydrocarbon oxidation catalyst downstream of the SCR. The method also includes connecting a controller to the heater, the controller executes a method of controlling the NOx emissions of the ICE, the method includes monitoring a torque demand for the vehicle, determining if the torque demand is large enough to cause the ICE to generate excessive NOx, operating the ICE at a torque less than the torque demand, and operating the motor with the ICE to provide sufficient torque to satisfy the torque demand.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: June 23, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Eduardo Jose Barrientos Betancourt, Roberto Romanato, Francesco Bechis, Francesco Concetto Pesce, Jaime Andres Cespedes Garcia
  • Patent number: 10690102
    Abstract: Provided is an internal-combustion engine starting device in which a control unit controls a motor to realize a first starting mode of starting an internal-combustion engine by increasing a rotation speed of the internal-combustion engine to a predetermined first rotation speed NE1 by the motor and a second starting mode of starting the internal-combustion engine by increasing the rotation speed of the internal-combustion engine to a second rotation speed NE2 set higher than the first rotation speed NE1 and set based on a temperature of a coolant by the motor.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: June 23, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Koji Yoshida, Yuichi Masukake, Atsuki Iwamitsu
  • Patent number: 10690032
    Abstract: A urea concentration sensor reflector system includes a urea concentration sensor reflector assembly including a reflector having an upwardly convex dome shape integrally connected to and supported by multiple legs. The reflector includes a concave-shaped inner surface. The multiple legs are connected to and support the urea concentration sensor reflector assembly to an upward directed surface of a bottom tank wall of a urea storage tank. A sound wave generator and receiver is fixed to the bottom tank wall directly below and centrally aligned with the reflector. The sound wave generator and receiver generates ultrasonic sound waves directed upwardly toward the reflector. A concentration of a liquid urea in the urea storage tank is determined based on a time for the ultrasonic sound waves to travel to the reflector and return as echo signals to the sound wave generator and receiver, and a temperature of the liquid urea.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: June 23, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Adrian Carpinisan
  • Patent number: 10683823
    Abstract: A control device for an internal combustion engine performs feedback control so that the air-fuel ratio of the exhaust gas flowing into an exhaust purification catalyst becomes a target air-fuel ratio and switches the target air-fuel ratio to lean when an output air-fuel ratio of a downstream side air-fuel ratio sensor is judged rich and switches the target air-fuel ratio to rich when an output air-fuel ratio of the downstream side air-fuel ratio sensor is judged lean. The control device judges that the downstream side air-fuel ratio sensor has not become abnormal when the value of the excess/deficiency parameter from when switching the target air-fuel ratio to lean or rich to when the output air-fuel ratio of the downstream side air-fuel ratio sensor is judged rich or lean is larger than a predetermined limit value.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: June 16, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Go Hayashita
  • Patent number: 10683820
    Abstract: A vehicle propulsion system includes an internal combustion engine with a first combustion chamber and a second combustion chamber, a catalytic converter in an exhaust stream in communication with an exhaust of the internal combustion engine, a gasoline particulate filter in the exhaust stream downstream of the catalytic converter, and a controller in communication with the internal combustion engine. The controller is programmed to determine if a soot loading of the gasoline particulate filter exceeds a predetermined threshold, and adjust a set of engine operating parameters of the internal combustion engine to disable combustion in the first combustion chamber and enrich a fuel mixture in the second combustion chamber if the soot loading in the gasoline particulate filter exceeds the predetermined threshold.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: June 16, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Rafat F. Hattar
  • Patent number: 10669909
    Abstract: An exhaust purification system is provided with a NOx-occlusion-reduction-type catalyst and a NOx purge rich control unit that executes NOx purge of reducing and purifying the occluded NOx by putting the exhaust into a rich state by fuel injection control, in a case where a catalyst temperature of the NOx-occlusion-reduction-type catalyst is equal to or higher than a catalyst temperature threshold value and a NOx occlusion amount of the NOx-occlusion-reduction-type catalyst is equal to or higher than an NOx occlusion amount threshold value, and executes the NOx purge even when the NOx occlusion amount is less than the NOx occlusion amount threshold value, in a case where the catalyst temperature is equal to or higher than a catalyst temperature threshold value which is greater than the catalyst temperature threshold value.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: June 2, 2020
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Teruo Nakada, Takayuki Sakamoto, Daiji Nagaoka
  • Patent number: 10662890
    Abstract: A method for operating an internal combustion engine is provided in which fuel is withdrawn from a high-pressure accumulator and injected into a combustion chamber of at least one cylinder of the internal combustion engine, the method including the steps of detecting under conditions of angular synchronism a pressure of the fuel in the high-pressure accumulator during a first injection into the at least one cylinder and during a later, second injection into the at least one cylinder; ascertaining a gradient of the detected pressure; ascertaining a frequency-transformed spectrum of the detected pressure and a frequency-transformed spectrum of the ascertained gradient; correcting the frequency-transformed spectrum of the detected pressure by the frequency-transformed spectrum of the ascertained gradient; and ascertaining a cylinder-individual injection quantity of fuel, which was injected into the at least one cylinder, from the corrected frequency-transformed spectrum of the detected pressure.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: May 26, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Florian Reiling, Christos Hondros
  • Patent number: 10662846
    Abstract: A method at an exhaust gas cleaning system for an engine (235) in which a reducing agent is added to a passage (290) for exhaust gases from the engine (235) for cleaning the exhaust gases. The exhaust gas cleaning system includes arrangements (270) that require a certain temperature level (Tmax) in order to achieve catalytic exhaust gas cleaning. The method is to distribute and store (s430) a limited amount of reducing agent at temperature level (Tmax); and to use (s440) during a cold start of the exhaust gas cleaning system, the distributed and stored reducing agent to achieve the catalytic exhaust gas cleaning. Also a computer program product (200; 210) to implement the method. Also an arrangement for an exhaust gas cleaning system for an engine (235), and a motor vehicle (100) equipped with the arrangement.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: May 26, 2020
    Assignee: SCANIA CV AB
    Inventors: Magnus Nilsson, Henrik Birgersson, Andreas Liljestrand
  • Patent number: 10655579
    Abstract: A fuel supply system includes a housing including a housing body in which a fuel storage tank serving as a reservoir tank as well and a lid covering an opening of the housing body in an air-tight manner. The housing includes a fuel pump, a regulator configured to regulate a pressure of the fuel to return excess fuel to the fuel storage tank, a regulator holding member supporting the regulator, and a fuel storage volume adjusting unit that maintains the liquid surface level of the stored fuel at a fixed level. The fuel supply system supplies fuel at a predetermined pressure from a fuel discharging pipe of the lid to the engine. The regulator holding member is formed in such a manner in a planar view as to fill most of interspace in the opening of the housing body to close the upper portion of the fuel storage tank.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: May 19, 2020
    Assignee: Nikki Co., Ltd.
    Inventors: Teruyuki Wakabayashi, Yukinori Suematsu
  • Patent number: 10655521
    Abstract: SCR tank (10) for motor vehicles for storing and dispensing aqueous urea solution, comprising a tank shell (16) enclosing a tank volume (18) having fluid delivery opening (20) and a fluid removal opening (in 28), wherein the SCR tank (10) further has a ventilation line (30), through which a gas exchange is made possible between a gas-filled region of the tank volume (18) during operation of the tank and the outer atmosphere of the SCR tank (10), wherein the tank shell (16) toward this end has a gas opening (38), at which the ventilation line (30) terminates or which is penetrated by the ventilation line (30), which is characterized in that in a joint section (52) a ventilation line component (32) contributing to formation of the ventilation line (30) is joined in a materially-bonded manner to a joint surface section (36) of the tank shell (16).
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: May 19, 2020
    Assignee: RÖCHLING AUTOMOTIVE SE & CO. KG
    Inventors: Dieter Kerschbaumer, Veit Gufler
  • Patent number: 10655584
    Abstract: To obtain a gasoline direct injection rail that enables plating treatment to be easily and reliably performed on the inside of a rail body and an inlet part, also, that includes an orifice, and that has excellent mechanical properties. In a gasoline direct injection rail comprising a steel rail body 4, an inlet part 6 provided integrally with or separately from a first end 5 of the rail body 4 and comprising therein a communication passage 7 in communication with a fuel passage of the rail body 4, and a plurality of injector holders in communication with the fuel passage, a stainless orifice member 1 formed separately from the rail body 4 is securely disposed in the communication passage 7 of the inlet part 6.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: May 19, 2020
    Assignee: USUI CO., LTD.
    Inventors: Hiroyuki Nishizawa, Shuji Suzuki
  • Patent number: 10645764
    Abstract: A heatable liquid container made of plastic material include a container wall that defines an interior of the container. The container wall at least partially consists of the plastic material which contains inductively heatable additives. An electrically actuatable magnetization unit is associated with the liquid container and operable to generate a magnetic alternating field such that the inductively heatable additives are inductively excited by the magnetization unit so as to directly heat a liquid held in the interior of the container via the container wall.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: May 5, 2020
    Assignee: ELKAMET KUNSTSTOFFTECHNIK GMBH
    Inventors: Martin Deussen, Marco Emrich
  • Patent number: 10641145
    Abstract: An extraction apparatus (10) adapted to capture exhaust gas emitted by an internal combustion engine and to dilute the exhaust gas by mixing with air and also cool the exhaust gas. The extraction apparatus (10) has a first flow path (31), second flow path (32), and third flow path (33). The first flow path (31) extends between inlet (35) and an outlet (37) for air flow from the inlet to the outlet. The second flow path (32) receives exhaust gas emitted from the engine and delivers it into the first flow path (31) for mixing with an air flow along the first flow path. The third flow path (33) delivers water for mixing with the air flow. The arrangement is such that there is confluence of air, exhaust gas and water to provide a fluid mixture for discharging through the outlet (37). The exhaust gas is cooled using the cooling effects of the air and also the cooling effects of water in heat exchange relation with the exhaust gas prior to mixing of the exhaust gas with the air.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: May 5, 2020
    Assignee: ENVIROCHASING IP HOLDINGS PTY LTD
    Inventor: Steven Terpstra
  • Patent number: 10641159
    Abstract: A pre-chamber for a fuel injector is disclosed. The pre-chamber includes a cylindrical body member extending axially from a first end portion to a second end portion opposite to the first end portion. The pre-chamber further includes a bottom plate located proximal to the first end portion of the cylindrical body member. The pre-chamber also includes a sacrificial member extending axially outwards from the second end portion of the cylindrical body member.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: May 5, 2020
    Assignee: Caterpillar Inc.
    Inventors: Curtis J. Graham, Daniel Cavanaugh, Kevin P. Reardon
  • Patent number: 10634068
    Abstract: A method and a device for controlling the engine braking operation in internal combustion engines for motor vehicles, wherein the internal combustion engine is operated with direct injection of fuel and a controllable brake flap is provided in the exhaust gas system for retaining exhaust gases in the engine braking operation, and moreover has an exhaust gas recirculation device having an EGR valve that is arranged upstream of the brake flap and a recirculation line that connects the exhaust gas system to the intake system of the internal combustion engine and during the driving operation controls a defined quantity of recirculated exhaust gas with respect to the combustion air. To avoid critical excessive temperatures at the injection valves, in the engine braking operation (MB), the EGR valve (13) is more or less opened in dependence upon operating parameters (n, TE) of the internal combustion engine (1).
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: April 28, 2020
    Assignee: MAN Truck & Bus Österreich AG
    Inventors: Rodrigo Chaves, Gottfried Raab, Markus Raup, Lukas Gohm
  • Patent number: 10626815
    Abstract: The internal combustion engine comprises an exhaust purification catalyst and downstream side air-fuel ratio sensor. The control system performs feedback control so that the air-fuel ratio of the exhaust gas flowing into the exhaust purification catalyst becomes a target air-fuel ratio and performs learning control which corrects the control center air-fuel ratio based on the output air-fuel ratio of the downstream side air-fuel ratio sensor. The target air-fuel ratio is switched between the lean air-fuel ratio and the rich air-fuel ratio. In the learning control, when the target air-fuel ratio is set to the rich air-fuel ratio and the output air-fuel ratio of the downstream side air-fuel ratio sensor is maintained in an air-fuel ratio region in proximity to the stoichiometric air-fuel ratio for the stoichiometric air-fuel ratio judgment time or more, stoichiometric air-fuel ratio stuck learning is performed, changing air-fuel ratio of the exhaust gas to the rich side.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: April 21, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shuntaro Okazaki, Norihisa Nakagawa, Yuji Yamaguchi
  • Patent number: 10626812
    Abstract: A multi-cylinder engine includes first and second subsets of cylinders. A dedicated-cylinder exhaust gas recirculation (EGR) system is associated with the second subset of cylinders. A plasma ignition system is disposed in the second subset of cylinders. A controller operates the plasma ignition system to control the plasma igniters to execute plasma discharges in the second subset of cylinders to generate residual exhaust gas, which is recirculated through the dedicated-cylinder EGR system to the intake air system for introduction into intake air.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: April 21, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Cherian A. Idicheria, Edward J. Keating, Paul M. Najt, Richard S. Davis
  • Patent number: 10626828
    Abstract: An exhaust gas control valve of an engine, which includes a plurality of engine exhausts ports, a catalytic converter, a plurality of combustion chambers, and an Exhaust Gas Recirculation (EGR) line, includes: a valve body having an inflow port communicating with only some of the plurality of engine exhaust ports, an exhaust port communicating with the catalytic converter and a recirculation port communicating with the EGR line; and a valve flap assembly rotatably installed at the valve body to block one of the exhaust port and the recirculation port while opening the other of the exhaust port and the recirculation port.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: April 21, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Dong Ho Chu, Hyeon Ho Kim, Hyuk Im, Dong Hee Han
  • Patent number: 10626830
    Abstract: Methods and systems are provided for indicating whether a canister purge valve in a vehicle evaporative emissions control system is degraded. In one example, an air intake system hydrocarbon (AIS HC) trap temperature may be monitored during a refueling event, and responsive to an indication that the AIS HC trap temperature change is greater than a predetermined threshold, it may be indicated that the canister purge valve is degraded. In this way, diagnosis of whether a vehicle canister purge valve is degraded may be indicated without the use of engine manifold vacuum, and may be advantageous for vehicles configured to operate for significant amounts of time without engine operation, or without intake manifold vacuum.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: April 21, 2020
    Assignee: Ford Global Technologies, LLC
    Inventor: Aed M. Dudar
  • Patent number: 10626758
    Abstract: A combined exhaust and engine brake rocker arm assembly configured to selectively open first and second exhaust valves, includes a rocker arm body, an exhaust rocker arm assembly formed in the rocker arm body, and an engine brake rocker arm assembly formed in the rocker arm body and configured to operate in a collapse mode and a rigid mode. The exhaust rocker arm assembly is configured to selectively engage a valve bridge to open the first and second exhaust valves, and the engine brake rocker arm assembly is configured to selectively engage the valve bridge to open only the first exhaust valve.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: April 21, 2020
    Assignee: Eaton Corporation
    Inventors: James E. McCarthy, Jr., Douglas J. Nielsen, Kshamta Bishnoi