Engine Fuel, Air, Or Ignition Controlled By Sensor Of Reactor Condition Patents (Class 60/285)
  • Patent number: 10352231
    Abstract: In an upstream portion from a valve connecting surface that is formed in an opening of an intake port to a combustion chamber, an upper wall surface of the intake port continues from an upstream side end of the valve connecting surface and extends substantially straight and diagonally with respect to a ceiling surface on the intake port side. In addition, a cross-sectional shape of the portion in the intake port in a direction perpendicular to an axial direction of the intake port is a flat shape with an axis in a transverse direction being a long axis.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: July 16, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuyoshi Abe, Yasushi Yoshihara, Taketo Nagasaki, Nobuhiko Horie
  • Patent number: 10329979
    Abstract: A method for controlling an emission amount in an exhaust gas stream emitted from a power generation system is presented. The method includes determining a pre-catalyst emission level using a combustion engine model. The method further includes determining a post-catalyst emission level using a three-way catalyst model based on the pre-catalyst emission level. Furthermore, the method includes determining an adjusted post-catalyst emission level based on the post-catalyst emission level. Moreover, the method includes determining a difference between the post-catalyst emission level and the adjusted post-catalyst emission level and comparing the difference with a threshold value. Additionally, the method includes determining whether to adjust an actual value of an engine operating parameter based on the comparison such that the emission amount in the exhaust gas stream is maintained below an emission regulatory limit. An engine controller and a power generation system employing the method are also presented.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: June 25, 2019
    Assignee: AI ALPINE US BIDCO INC
    Inventors: Prashant Srinivasan, Maruthi NarasingaRao Devarakonda, William Collins Vining, Edward Owen Reinbold, Dipankar Deb
  • Patent number: 10309333
    Abstract: A method and apparatus is provided for regenerating an after-treatment device associated with an exhaust system of an internal combustion engine. A lambda error control provides a lambda error signal based upon a measured lambda value and a predetermined lambda value indicative of rich operation. An after-injection map provides an after-injection preset based upon a speed and a torque of the internal combustion engine. A main injection map provides a torque-making main injection preset based upon the speed of the internal combustion engine and the torque of the internal combustion engine. A controller is configured to provide an after-injection quantity signal based upon the after-injection preset, the lambda error signal and a main injection quantity signal based upon the main injection preset and the lambda error signal such that the measured lambda value is maintained within a regeneration range.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: June 4, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Giorgio Nati, Paolo Olmo, Nicola Pio Sacco, Davide Gessaroli
  • Patent number: 10309329
    Abstract: In a hybrid vehicle including: an engine having an exhaust system in which a filter that removes particulate matter is provided; a motor configured to generate a driving force for the hybrid vehicle; a power storage device configured to exchange an electric power with the motor; and an electronic control unit configured to control the engine and the motor. When an accumulation amount of the particulate matter of the filter is equal to or more than a predetermined accumulation amount, the electronic control unit is configured to permit fuel cut of the engine when a temperature of the filter is lower than a predetermined temperature, and the electronic control unit is configured to prohibit the fuel cut of the engine when the temperature of the filter is equal to or higher than the predetermined temperature.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: June 4, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Asuka Tsunoda, Takashi Suzuki
  • Patent number: 10267192
    Abstract: An exhaust purification system of an internal combustion engine comprising an exhaust treatment catalyst (13) arranged in an engine exhaust passage and a heat and hydrogen generation device (50) able to feed only heat or heat and hydrogen to the exhaust treatment catalyst (13). When the warm-up operation of the heat and hydrogen generation device (50) is completed and a reforming action by a reformer catalyst (54) becomes possible, if the temperature of the exhaust treatment catalyst (13) is a preset activation temperature or more, a partial oxidation reaction is performed at the heat and hydrogen generation device (50) and the generated heat and hydrogen are fed to the exhaust treatment catalyst (50). At this time, if the temperature of the exhaust treatment catalyst (13) is less than the preset activation temperature, a complete oxidation reaction by a lean air-fuel ratio is continued and a heat is fed to the exhaust treatment catalyst (13).
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: April 23, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shinichi Takeshima, Hiromasa Nishioka, Kiyoshi Fujiwara
  • Patent number: 10260439
    Abstract: A control apparatus for an internal combustion engine executes a detection process upon satisfaction of all detection preconditions including a stopped condition that a temperature-increasing process has been stopped; determines Whether all the detection preconditions except the stopped condition are satisfied, during the temperature-increasing process; executes a gradually-changing-and-stopping process of stopping the temperature-increasing process by gradually changing the air-fuel ratios in the cylinders to a target air-fuel ratio set based on an operation state of the internal combustion engine after stop of the temperature-increasing process, when a negative determination is made and a temperature-increasing process stop request has been issued; and executes a promptly-stopping process of stopping the temperature-increasing process by changing the air-fuel ratios in the cylinders to the target air-fuel ratio within a shorter time period than that of the gradually-changing-and-stopping process, when an af
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: April 16, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Kazuki Tsuruoka
  • Patent number: 10253720
    Abstract: A control device for an internal combustion engine for preventing a deterioration in exhaust characteristics when a change to an air-fuel ratio on a theoretical air-fuel ratio side is requested in an internal combustion engine during operation in a lean mode. The control device controls an internal combustion engine equipped with a NOx storage-reduction catalyst in an exhaust passage. When a NOx amount stored in the NOx storage-reduction catalyst reaches a release threshold value, the control device executes rich control to cause the NOx to be released. In a state in which an air-fuel ratio of an air-fuel mixture belongs to a second region that is near a lean limit, the release threshold value for determining the start of the rich control is set in the vicinity of the NOx storage capacity of the NOx storage-reduction catalyst.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: April 9, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Shingo Korenaga
  • Patent number: 10240506
    Abstract: Methods, systems, and vehicles are provided for estimating nitrogen oxide values for vehicles. In accordance with one embodiment, a system includes a memory and a processor. The memory is configured to store one or more kinetic models pertaining to a propulsion system for a vehicle. The processor is configured to at least facilitate obtaining a nitrogen value pertaining to a selective catalytic reduction (SCR) unit of the propulsion system, obtaining an initial nitrogen oxide measurement via a nitrogen oxide sensor of the propulsion system, using the nitrogen value as an input for the one or more kinetic models pertaining to the propulsion system, generating a kinetic model output from the one or more kinetic models, and estimating an updated value for the initial nitrogen oxide measurement based on the kinetic model output.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: March 26, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Yue-Yun Wang, Gongshin Qi, Guiseppe Mazzara Bologna
  • Patent number: 10202882
    Abstract: A fault diagnosis device for an exhaust pipe fuel injector that diagnoses a normality or an abnormality of the exhaust pipe fuel injector which injects a fuel according to an instructed fuel injection amount, includes: a storage unit which stores a regeneration duration and an instructed fuel injection amount in the regeneration duration; a calculation unit which calculates an instructed fuel injection amount per unit time in the regeneration duration; and a fault diagnosis unit which diagnoses that the exhaust pipe fuel injector is abnormal when the instructed fuel injection amount per unit time in the regeneration duration exceeds a fault threshold, and diagnoses that the exhaust pipe fuel injector is normal when the instructed fuel injection amount per unit time in the regeneration duration does not exceed the fault threshold.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: February 12, 2019
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Toshio Ichimasa, Yukihiro Kawashima, Tomoya Kaji, Kouji Sakumoto, Shunya Matsushita
  • Patent number: 10188975
    Abstract: An air filter, including: at least one wall-flow honeycomb particulate filter having at least one coat on at least a portion of the interior surface of the filter, wherein the at least one coat comprises at least one of: a sorbent; a catalyst; or a combination thereof, and the air filter, in-use, retains from filtered air at least one of: a particulate, a volatile organic compound, or a combination thereof. Also disclosed is an interior air purification system including the air filter, and methods of making and using the air filter.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: January 29, 2019
    Assignee: Corning Incorporated
    Inventors: Xiaodong Robert Fu, Wenhuan Hu, Weizheng Yu
  • Patent number: 10145317
    Abstract: Disclosed herein is a system for managing combustion in an internal combustion engine includes a detection module that determines a combustion condition of the internal combustion engine. The combustion condition includes one of a first combustion condition or second combustion engine. The system also includes a fuel table module that receives the combustion condition and selects an engine operating request based on data in a first fuel table when the combustion condition is the first combustion condition, and data in a second fuel table when the combustion condition is the second combustion condition. The system additionally includes an engine control module that receives the engine operating request and generates engine operating commands based on the engine operating request.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: December 4, 2018
    Assignee: Cummins IP, Inc.
    Inventors: Axel O. zur Loye, David J. Reynolds
  • Patent number: 10138826
    Abstract: Fuel management system for efficient operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder of the engine. A fuel management microprocessor system controls injection of the anti-knock agent so as to control knock and minimize that amount of the anti-knock agent that is used in a drive cycle. It is preferred that the anti-knock agent is ethanol. The use of ethanol can be further minimized by injection in a non-uniform manner within a cylinder. The ethanol injection suppresses knock so that higher compression ratio and/or engine downsizing from increased turbocharging or supercharging can be used to increase the efficiency or the engine.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: November 27, 2018
    Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Daniel R. Cohn, John B. Heywood, Leslie Bromberg
  • Patent number: 10132247
    Abstract: A controller of an internal combustion engine receives a request for engine braking and, in response thereto, activates an exhaust braking subsystem. Additionally, after passage of a period of time, the controller further activates a compression release braking subsystem. The period of time is preferably selected to permit development of increased back pressure in an exhaust system of the internal combustion engine prior to activation of the compression release braking subsystem. Additionally, following activation of the exhaust braking subsystem, the controller may whether the exhaust braking subsystem has failed and, if so, cause the compression release braking subsystem to operate in a reduced braking power mode, for example at less than full braking power potentially down to and including no braking power.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: November 20, 2018
    Assignee: JACOBS VEHICLE SYSTEMS, INC.
    Inventors: Matei Alexandru, Ryan Lilly
  • Patent number: 10113460
    Abstract: A method for adjusting the temperature of an exhaust gas aftertreatment device is disclosed. A first characteristic temperature value for an oxidative carbon monoxide conversion and a second characteristic temperature value for an oxidative hydrocarbon conversion are assigned to an oxidation catalytic converter, and a third characteristic temperature value for a reductive NOx conversion is assigned to an SCR catalytic converter. Different respective values for injection parameters of injection processes for fuel injections into combustion chambers of the internal combustion engine and/or the heating output of an electric heating element are set upon reaching the first and the second characteristic temperature values for the temperature of the oxidation catalytic converter and upon reaching the third characteristic temperature value for the temperature of the SCR catalytic converter.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: October 30, 2018
    Assignee: Daimler AG
    Inventors: Ortwin Balthes, Berthold Keppeler, Siegfried Mueller, Thorsten Woog
  • Patent number: 10107166
    Abstract: A catalytic converter for an internal combustion engine includes a tubular member which defines a volume within which a catalytic converter substrate is located, the volume communicates with an inlet portion for receiving exhaust gas emissions and with a first outlet portion for discharging emissions after catalytic conversion. The catalytic converter may also include a pipe member within the tubular member, which connects the inlet portion with the volume and guides emissions from the inlet portion in a first direction. The pipe member opens into a deflector member which deflects emissions into the volume in a second direction, and the catalytic converter includes a second outlet portion connected to the deflector member and a valve to control gas flow through the second outlet portion to guide emissions away from the pipe member and out of the catalytic converter prior to reaching the catalytic converter substrate when the valve is open.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: October 23, 2018
    Assignee: Volvo Car Corporation
    Inventors: Mats Laurell, Jan Dahlgren
  • Patent number: 10100755
    Abstract: A method for operating a system having a plurality of internal combustion engines coupled together such that then outputs are drawn off by a common load, a downstream individual exhaust gas aftertreatment device, in which the exhaust gas of a particular engine undergoes an individual exhaust gas aftertreatment, positioned downstream of each engine, or a common exhaust gas aftertreatment device, in which the exhaust gas undergoes a common exhaust gas aftertreatment, positioned downstream of to the engine. To regenerate an exhaust gas aftertreatment device, the drive output of one engine is reduced, the temperature of the exhaust gas is increased, and the drive output of a second engine is increased such that the drive output reduction is at least partially compensated for.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: October 16, 2018
    Assignee: MAN Energy Solutions SE
    Inventors: Andreas Döring, Alexander Knafl, Mirko Bugsch
  • Patent number: 10085377
    Abstract: A cooling system for cooling a component on a farm machine according to the present disclosure can include a rotary blower and a manifold. The rotary blower can include a housing and have a first rotor and a second rotor rotatably disposed in the housing. The first and second rotors can have meshed lobes for transporting air from an inlet port to an outlet port. The rotary blower can further include a first rotor shaft and a second rotor shaft rotatably supported by the housing and having first and second rotors, respectively, fixed for rotation therewith. The manifold can direct the air from the rotary blower onto the component of the farm machine.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: October 2, 2018
    Assignee: Eaton Corporation
    Inventors: Kurt Northrop, Daniel Ouwenga
  • Patent number: 10082060
    Abstract: In one embodiment, a system may include a gas turbine system. the gas turbine system includes a gas turbine, an after-treatment system that may receive exhaust gases from the gas turbine system, and a controller that may receive inputs and model operational behavior of an industrial plant based on the inputs. The industrial plant may include the gas turbine and the after-treatment system. The controller may also determine one or more operational parameter setpoints for the industrial plant, select the one or more operational parameter setpoints that reduce an output of a cost function, and apply the one or more operational parameter setpoints to control the industrial plant.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: September 25, 2018
    Assignee: General Electric Company
    Inventors: Maruthi Narasinga Rao Devarakonda, Rachel Tarvin Farr, Sahika Genc
  • Patent number: 10077727
    Abstract: A fuel control module controls fuel injection of an engine based on a predetermined lean air/fuel ratio. The predetermined lean air/fuel ratio is fuel lean relative to a stoichiometric air/fuel ratio for the fuel. A cylinder control module selectively deactivates opening of intake and exhaust valves of M cylinders of the engine to increase removal of nitrogen oxide (NOx) from exhaust. M is an integer greater than 0 and less than a total number of cylinders of the engine. The fuel control module further: disables fueling of the M cylinders while opening of the intake and exhaust valves of the M cylinders is deactivated; and, while fueling of the M cylinders is disabled and opening of the intake and exhaust valves of the M cylinders is deactivated, controls fuel injection of other cylinders based on a predetermined rich air/fuel ratio that is fuel rich relative to the stoichiometric air/fuel ratio.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: September 18, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: David P. Sczomak, Robert J. Gallon, Robert S. McAlpine, Arun S. Solomon
  • Patent number: 10072553
    Abstract: In a deterioration diagnosis apparatus for a selective catalytic reduction (SCR) catalyst in which when an air fuel ratio of a mixture to be combusted in an internal combustion engine is a lean air fuel ratio, inducement processing is executed which is to induce a water gas shift reaction in a pre-stage catalyst, by changing the air fuel ratio of the mixture from the lean air fuel ratio to a predetermined rich air fuel ratio, and diagnosis processing is executed which is to diagnose deterioration of the SCR catalyst based on an output difference between two air fuel ratio sensors at the time of the execution of the inducement processing, when the SCR catalyst is in a state of being subjected to sulfur poisoning resulting from the execution of the S purge processing of the pre-stage catalyst, diagnosis processing is not executed.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: September 11, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koji Hagiwara, Toru Kidokoro, Yasushi Iwazaki, Takahiko Fujiwara
  • Patent number: 10072545
    Abstract: An exhaust purification system of an internal combustion engine having an upstream side catalyst a downstream side catalyst, a downstream side air-fuel ratio sensor provided between the upstream side catalyst and the downstream side catalyst, and a control device able to control an air-fuel ratio of exhaust gas flowing into the upstream side catalyst as air-fuel ratio control.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: September 11, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Shigemasa Hirooka
  • Patent number: 10024209
    Abstract: An exhaust gas purification filter includes: a honeycomb structure body having partition walls for defining a plurality of cells that extend from an inflow end face to an outflow end face; an inflow side plugging portion; an outflow side plugging portion; and a porous surface trapping layer which is disposed on an inflow surface which is a surface on an inflow cell side which is the cell in which the outflow side plugging portion is disposed, among surfaces of the partition walls, in which the surface trapping layer has a thickness of 10 to 60 ?m and an average pore diameter of 0.3 to 5 ?m, and in a section which is parallel to a cell extending direction.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: July 17, 2018
    Assignee: NGK Insulators, Ltd.
    Inventors: Yukio Miyairi, Toshio Yamada, Toshihiro Hirakawa
  • Patent number: 10018142
    Abstract: A method is provided for operating a compression-ignition engine having a combustion chamber. The method includes establishing, via an injection driver, electronic communication with a primary clock configured to generate a primary time signal. The method also includes commanding an injector to introduce into the combustion chamber injections of fuel having respective pulse widths timed using the primary time signal to generate combustion within the combustion chamber. The method additionally includes detecting a loss of the primary time signal and subsequently establishing an electronic communication between the injection driver and an auxiliary clock configured to generate an auxiliary time signal. Furthermore, the method includes commanding the injector to introduce into the combustion chamber a number of injections of fuel having respective pulse widths timed using the auxiliary time signal and thereby continuing combustion within the combustion chamber.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: July 10, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Umberto Ferrara, Luca Chiapusso, Raffaele Esposito, Marco Tiberio
  • Patent number: 10012164
    Abstract: A control apparatus of an engine including intake and exhaust valves and a variable valve timing mechanism for varying open and close timings is provided. The apparatus includes a processor configured to execute an increasing amount controlling module for performing a fuel amount increase control in which a fuel injection amount is increased to decrease an exhaust gas temperature, and a valve controlling module for controlling, via the variable valve timing mechanism, an overlapping period in which the intake and exhaust valves are both opened on intake stroke. When the increasing amount controlling module performs the increase control, based on an increase of a temperature of the exhaust gas in the increase control, the valve controlling module determines whether a protection for an exhaust system component is required, and if the protection is determined to be required, the valve controlling module shortens the overlapping period.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: July 3, 2018
    Assignee: Mazda Motor Corporation
    Inventors: Takafumi Nishio, Shin Miura, Kazuhiro Nishimura
  • Patent number: 10001047
    Abstract: An exhaust aftertreatment system for treating exhaust flow from an internal combustion engine, and associated method, allows for independent control of exhaust flow through plural exhaust legs of the exhaust aftertreatment system. The independent control of exhaust flow is carried out by adjusting a valve positioned in each the exhaust legs based on a value of a signal generated by a flow measurement device positioned along at least one of the exhaust legs. The valves can be adjusted to force a target flow in a exhaust leg, relative flow among exhaust legs, exhaust temperature in an exhaust leg, exhaust backpressure and/or imbalance within the exhaust legs.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: June 19, 2018
    Assignee: Cumming Intellectual Property, Inc.
    Inventors: Colin L. Norris, Richard J. Ancimer, Axel O. zur Loye, Randy W. Nelson, Gary Charles Salemme, Ousmane Gueye, John Franklin Wright
  • Patent number: 9982614
    Abstract: A control device for an internal combustion engine comprises an air-fuel ratio control part configured to control the air-fuel ratio of the exhaust gas and a heating control part configured to control the heating of the air-fuel ratio sensors. The heating control part controls the sensor heaters so that the temperature of the upstream air-fuel ratio sensor becomes less than the activation temperature and so that the temperature of the downstream air-fuel ratio sensor becomes the activation temperature or more while the internal combustion engine is stopped by the automatic stop function. The air-fuel ratio control part controls the exhaust air-fuel ratio based on the outputs of the two air-fuel ratio sensors during engine operation and control the air-fuel ratio temporarily based on only the output of the downstream air-fuel ratio sensor after the internal combustion engine has been restarted after automatic stop.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: May 29, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Go Hayashita, Koji Ide
  • Patent number: 9982622
    Abstract: A control system for an engine includes a limiting current gas sensor includes a pumping cell arranged in the exhaust passage of the engine and an ECU. The ECU is configured to: execute step-up operation for increasing a voltage applied between a pair of electrodes of the pumping cell from a first voltage to a second voltage, then, execute step-down operation for reducing the applied voltage from the second voltage to a third voltage within a second period; acquire an air-fuel ratio of the exhaust gas multiple times within a first period from a start of the step-up operation to a start of the step-down operation; acquire a first waveform characteristic value indicating a characteristic of a waveform of current within the second period; and estimate an actual concentration of sulfur in fuel by using the first waveform characteristic value and the acquired air-fuel ratios.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: May 29, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tatsuhiro Hashida, Kazuhiro Wakao
  • Patent number: 9926827
    Abstract: An aftertreatment system comprises an exhaust reductant storage tank and a SCR system including a catalyst fluidly coupled thereto. The aftertreatment system also includes a controller configured to interpret an output signal indicative of a catalytic efficiency of the catalyst. The output signal is filtered using a fast filter to obtain a fast filter response signal, and also using a slow filter to obtain a slow filter response signal. It is determined if the fast filter response signal exceeds a first threshold and if the slow filter response signal exceeds a second threshold. In response to determining that the fast filter response signal exceeds the first threshold, and the slow filter signal response exceeds the second threshold, an indication is provided that an improper exhaust reductant is present in the storage tank.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: March 27, 2018
    Assignee: CUMMINS EMISSION SOLUTIONS, INC.
    Inventors: Jaya Chandra-Ramadugu, Farshad Farid, Kwadwo O. Owusu, Sergio Manuel Hernandez-Gonzalez, Joshua Supplee, Andrew Hillery
  • Patent number: 9879586
    Abstract: An object of the present invention is to distinguish and detect an abnormality of SCRF and an abnormality of a diffusing device in a system in which a diffusing device is provided for an exhaust gas passage between a filter (SCRF) including an SCR catalyst carried thereon and a reducing agent addition valve.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: January 30, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Yuriko Hagimoto
  • Patent number: 9874167
    Abstract: A torque request module determines a torque request for an engine based on a driver input. A cylinder control module determines a target fraction of a total number of cylinders of the engine to be activated based on the torque request. An air fuel imbalance (AFIM) module selectively commands that the cylinder control module set the target fraction based on a predetermined fraction of the total number of cylinders of the engine to be activated. The cylinder control module further: sets the target fraction based on the predetermined fraction in response to the command; and activates and deactivates opening of intake and exhaust valves of the cylinders of the engine based on the target fraction. The AFIM module further, while the target firing fraction is set based on the predetermined fraction, selectively diagnoses the presence of an AFIM fault based on samples of a signal from an oxygen sensor.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: January 23, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Ian J. MacEwen, David A. Gorajek, Douglas J. Moening, Daniel W. Jecks
  • Patent number: 9834197
    Abstract: Section acquisition systems, methods, and programs acquire a scheduled travel route of a vehicle driven by at least one of an internal combustion engine or a motor. The systems, methods, and programs divide the scheduled travel route that is in a range of a predetermined distance from a current location into a plurality of sections such that a difference in traffic congestion degree is distinguished, and divide the scheduled travel route that is not in the range of the predetermined distance from the current location into a plurality of sections such that a difference in travel load is distinguished.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: December 5, 2017
    Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Satoshi Hirano, Takayuki Miyajima, Tomoki Kodan, Kuniaki Tanaka
  • Patent number: 9822682
    Abstract: An exhaust gas purification apparatus for an internal combustion engine, capable of carrying out oxidation removal of PM deposited in a filter as a whole in an efficient manner, includes a filter arranged in an exhaust passage of the internal combustion engine and having an oxidation catalyst supported in at least an upstream side portion thereof, and a heating device arranged so as to be able to heat the upstream side portion of the filter irrespective of oxidation reaction heat of the oxidation catalyst, wherein when filter upstream regeneration processing to oxidize and remove deposition PM in the upstream side portion of the filter is carried out by controlling a heating device, an amount of decrease of the upstream side deposition PM by the filter upstream regeneration processing is reflected on an amount of filter PM deposition in the ordinary filter regeneration processing which oxidizes and removes the deposition PM in the entire filter by means of oxidation reaction heat of unburnt fuel generated by
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: November 21, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yoshio Yamashita
  • Patent number: 9797325
    Abstract: A control apparatus for an internal combustion engine is provided. The control apparatus includes a turbocharger, a bypass passage, a wastegate valve, a catalyst device and a controller. The controller sets the wastegate valve to a closed state in a case where a warm-up execution condition is established, and performs A/F oscillation for increasing or decreasing the fuel injection amount so that lean combustion and rich combustion are alternately performed in a case where the temperature in the exhaust passage upstream of the turbocharger is beyond a predetermined reference value.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: October 24, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Shingo Korenaga
  • Patent number: 9777652
    Abstract: A driver inducement method and a driver inducement system for a vehicle that induce a driver to replenish a urea considering a urea level in a urea tank and an actual vehicle speed are disclosed. The driver inducement method may include: calculating a first residual travel distance according to a urea level and an average urea consumption if an engine is started; calculating a final residual travel distance based on the first residual travel distance according to the urea level and the average urea consumption and a second residual travel distance according to the urea level and a vehicle speed, if the first residual travel distance according to the urea level and the average urea consumption is smaller than a threshold distance; and limiting an engine output according to the final residual travel distance.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: October 3, 2017
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Jae Yoon Jung
  • Patent number: 9765666
    Abstract: A system and method for utilizing fuel as an on-board reductant for selective catalytic reduction of NOx is provided and includes a controller for controlling an engine to produce a lean first exhaust stream and a rich second exhaust stream that are received in respective first and second passageways of a dual path aftertreatment system. The rich second exhaust stream reacts with NOx stored in a NOx storage and reduction catalyst of the second passageway to regenerate this catalyst and generate ammonia. The first exhaust stream and the second exhaust stream having the generated ammonia are combined in a downstream common passageway to form a combined lean exhaust gas stream where the ammonia carried therein is stored or used by an SCR catalyst of the common passageway for NOx reduction. The engine is subsequently controlled to produce a rich first exhaust stream and a lean second exhaust stream.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: September 19, 2017
    Assignee: FCA US LLC
    Inventors: Michael A Smith, Craig L Dimaggio, Jeffrey P Wuttke, Andrew Brocker, Travis T Hamilton, Ken Hardman, Cody Baldwin-Squib
  • Patent number: 9752481
    Abstract: A system includes a prime engine connected to a prime engine exhaust stack that receives prime engine exhaust, a mixing duct section connected to the prime engine exhaust stack, a head-end power (HEP) generator connected to an HEP generator exhaust pipe that receives HEP generator exhaust, a single urea injector, and a selective catalytic reduction (SCR) system. The HEP generator exhaust pipe is connected to the mixing duct section, and the single urea injector injects urea into the HEP generator exhaust pipe upstream of the mixing duct section. The HEP generator exhaust and prime engine exhaust merge in the mixing duct section to form a merged exhaust that is received by the SCR system.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: September 5, 2017
    Assignee: CLEAN TRAIN PROPULSION
    Inventor: David Cook
  • Patent number: 9732656
    Abstract: A method for regenerating an exhaust gas filter for vehicles includes controlling an engine to operate in a high RPM range by a controller and regenerating the exhaust gas filter, controlling the engine to operate in the high RPM range by a temperature sensor unit provided on an exhaust pipe, controlling the engine to operate in a middle RPM range above a measured exhaust gas temperature threshold, and controlling the engine to operate in the middle RPM range by the temperature sensor unit, and controlling the engine to operate in an idle state if the temperature of the exhaust gas measured by the temperature sensor unit in secondary measurement is a middle RPM escape temperature predetermined by the controller or lower.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: August 15, 2017
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Beom Kyu Kim
  • Patent number: 9726097
    Abstract: A control device for an internal combustion engine, said control device implementing a lean control, whereby the air-fuel ratio of the exhaust gas flowing into an exhaust purification catalyst is set to a lean air-fuel ratio setting, and a rich control, whereby the air-fuel ratio of the exhaust gas flowing into the exhaust purification catalyst is set to a rich air-fuel ratio setting. When the amount of oxygen absorbed by the exhaust purification catalyst during lean control reaches or exceeds a criterion storage amount, a control is executed to switch to rich control. In addition, a control is executed to set the lean air-fuel ratio setting for a first intake air amount so as to be richer than the lean air-fuel ratio setting for a second intake air amount that is less than the first intake air amount.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: August 8, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KIASHA
    Inventors: Norihisa Nakagawa, Shuntaro Okazaki, Yuji Yamaguchi
  • Patent number: 9726101
    Abstract: An exhaust purification system of an internal combustion engine which has a plurality of cylinders is comprised of an exhaust purification catalyst, a downstream side air-fuel ratio sensor, and a control device which controls the average air-fuel ratio of the exhaust gas and the combustion air-fuel ratios of the cylinders. The control device performs average air-fuel ratio control where it alternately controls the average air-fuel ratio between the rich air-fuel ratio and the lean air-fuel ratio and inter-cylinder air-fuel ratio control where it controls the combustion air-fuel ratios of the cylinders so that the combustion air-fuel ratio becomes the rich air-fuel ratio at least at one cylinder among the plurality of cylinders even when the average air-fuel ratio is controlled to the lean air-fuel ratio by average air-fuel ratio control.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: August 8, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuya Suzuki, Yuji Yamaguchi, Hiroyuki Hokuto, Yuji Miyoshi, Koichi Hoshi
  • Patent number: 9683469
    Abstract: A system for treating exhaust gases of an engine on a motor vehicle including a particle filter, in which regeneration of the particle filter is controlled by bringing temperature of gases that are upstream from the particle filter to a first set temperature to initiate combustion of soot accumulated in the particle filter. A critical area and a normal area are defined on the basis of a point of operation of the engine, by a load of the engine and a speed. The temperature of the exhaust gases is brought to the first set temperature in the normal area and to a second set temperature, which is lower than the first set temperature, in the critical area.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: June 20, 2017
    Assignee: RENAULT s.a.s.
    Inventor: Mickael Remingol
  • Patent number: 9677442
    Abstract: A concentration of sulfur components contained in fuel is determined, without adding any special sensor for determining the sulfur concentration of the fuel.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: June 13, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiromasa Nishioka, Daichi Imai
  • Patent number: 9664094
    Abstract: A system for controlling an air/fuel ratio in an engine based on catalyst deactivation includes an NH3 detector disposed downstream from the three way catalyst, and a subsystem that compares measured values of NH3 concentration with a nominal value of NH3 concentration at rich operating conditions. A subsystem adjusts the air/fuel ratio based on the measured value of NH3 concentration and estimated CO concentration.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: May 30, 2017
    Assignee: General Electric Company
    Inventor: Maruthi Devarakonda
  • Patent number: 9657673
    Abstract: The objective of the present invention is to provide an exhaust purification system that is capable of purifying exhaust gas during both lean and stoichiometric driving. The exhaust purification system is equipped with: a feedback-use identifier, which identifies parameter values such that the error between the output value from a LAF sensor and the estimated value for the LAF sensor output as obtained from a model equation is minimized; and a stoichiometric driving mode controller. The controller performs feedback control and thereby determines the fuel injection amount such that in the stoichiometric driving mode the equivalence ratio value as calculated from the parameters reaches a target value which is set such that a three-way purification reaction occurs in an under-engine catalyst. The identifier identifies the model parameters before feedback control is initiated by the controller.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: May 23, 2017
    Assignees: HONDA MOTOR CO., LTD., DELPHI INTERNATIONAL OPERATIONS LUXEMBOURG S.A.R.L.
    Inventors: Yuji Yasui, Hideki Matsunaga, Hans Hardam, Toshiharu Takahashi, Masatoshi Yamada, Hiroshi Uike
  • Patent number: 9650984
    Abstract: When a specific condition requiring a rise in exhaust gas temperature is satisfied, a required fuel amount to be injected from an injector (21) is injected in a split manner, such that the fuel injection is divided to: a main injection (X1) to be initiated a given period before a compression top dead center; an auxiliary injection (X2) to be initiated after initiation of auto-ignited combustion of an air-fuel mixture consisting of air and the fuel injected by the main injection (X1) and before an assumed peak timing (Pk?) of a heat release rate (RH) from the combustion based on the main injection (X1); and a post injection (X3) to be initiated after the assumed peak timing (Pk?) and before completion of combustion based on the main injection (X1) and the auxiliary injection (X2). This makes it possible to raise an exhaust gas temperature while sufficiently ensuring auto-ignitability and fuel economy performance.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: May 16, 2017
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Kazuhiro Nagatsu, Masatoshi Hidaka, Takashi Kaminaga, Masahisa Yamakawa
  • Patent number: 9650934
    Abstract: An approach and system for engine and aftertreatment system optimization. Emissions of an engine may be reduced by an aftertreatment mechanism. Control of the engine and the aftertreatment mechanism may be coordinated for the best overall efficiency relative to both fuel consumption and the emissions reduction. Engine and aftertreatment control may also be optimized in terms of cost function minimization. Individual efficiencies of the engine and aftertreatment mechanism are not necessarily significant by themselves. Therefore, the engine and aftertreatment mechanism should be controlled in a manner to achieve the optimality of the engine and the aftertreatment mechanism together as one entity.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: May 16, 2017
    Assignee: Honeywell spol.s.r.o.
    Inventors: Daniel Pachner, Jaroslav Pekar
  • Patent number: 9624804
    Abstract: An incorrect or wrong diagnosis in abnormality diagnosis of a sensor is suppressed. Provided at the downstream side of an NOx selective reduction catalyst is a sensor which detects NOx and ammonia in an exhaust gas flowing out of the NOx selective reduction catalyst, and in which the NOx and the ammonia react with each other. An amount of decrease in an output of the sensor due to a reaction of the NOx and the ammonia in the sensor is calculated based on the NOx and the ammonia flowing out of the NOx catalyst, and an abnormality diagnosis of the sensor is carried out based on this amount of decrease in the output of the sensor.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: April 18, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Arifumi Matsumoto, Tomoyuki Kogo, Taiga Hagimoto, Kenji Furui, Akifumi Uozumi
  • Patent number: 9599001
    Abstract: An exhaust purification system for an internal combustion engine is provided that can maintain the NOx purification rate of a selective reduction catalyst at near the maximum thereof. The exhaust purification system is provided with an oxidation catalyst and CSF provided in the exhaust plumbing of the engine, a selective reduction catalyst that is provided in the exhaust plumbing on the downstream side of oxidation catalyst and CSF, and selectively reduces NOx in the exhaust, and a NO2 sensor that detects NO2 in the exhaust inside of the exhaust plumbing on the downstream side of the selective reduction catalyst. An ECU executes NO2-NOx ratio decrease processing to cause the NO2-NOx ratio corresponding to the ratio of NO2 to NOx in the exhaust flowing into the selective reduction catalyst to decrease, in a case of a detection value Vno2 from the NO2 sensor being greater than a predetermined value Vno2_th.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: March 21, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yuji Yasui, Eiji Hashimoto, Hideki Matsunaga, Hisao Haga, Masafumi Sakota
  • Patent number: 9587574
    Abstract: An exhaust system for an engine having a throttle is disclosed. The exhaust system may include an exhaust passage connectable to the engine, a particulate filter disposed in the exhaust passage, a sensor configured to generate a signal indicative of a total pressure differential across the particulate filter caused by soot and ash accumulation, a load actuator configured to selectively adjust a load on the engine, and a control module electronically connected to the load actuator and the sensor.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: March 7, 2017
    Assignee: Electro-Motive Diesel, Inc.
    Inventors: Douglas Michael Biagini, Rajesh Narayanan Nair
  • Patent number: 9588017
    Abstract: An apparatus for detecting a variation abnormality in an air-fuel ratio between cylinders according to the present invention is configured to calculate a value representing a change in an air-fuel ratio based on an output of an air-fuel ratio sensor that is provided in an exhaust passage in a predetermined operating state in which fuel is injected from a fuel injection valve, perform, to the calculated value, sensitivity correction in accordance with a sensitivity of the sensor based on the output of the sensor during fuel-cut operation and outside atmospheric pressure correction based on outside atmospheric pressure, and determine the presence or absence of a variation abnormality in an air-fuel ratio between cylinders by comparing the corrected value with a predetermined value.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: March 7, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroshi Miyamoto, Kenji Suzuki
  • Patent number: 9567889
    Abstract: In an internal combustion engine, an exhaust purification catalyst and a hydrocarbon feed valve are arranged in an exhaust passage. When the air-fuel ratio of the exhaust gas which flows into the exhaust purification catalyst should be made rich, rich control, which makes the air-fuel ratio of the exhaust gas which is exhausted from the combustion chamber rich, is performed. In order to prevent clogging of the hydrocarbon feed valve, clogging preventing injection which injects hydrocarbons from the hydrocarbon feed valve by an injection interval ?tCB is performed. The exhaust purification catalyst has an oxygen storage ability. At the initial period of rich control, clogging preventing injection is performed by a shorter injection interval ?tCS.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: February 14, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yoshito Nogi