Purge Valve Controlled By Engine Parameter Patents (Class 123/520)
  • Patent number: 10774792
    Abstract: An evaporative emissions isolation module system configured to manage venting on a fuel tank system is disclosed. The isolation module system includes a carbon canister, a multi-valve assembly and a controller. The carbon canister is adapted to collect fuel vapor emitted by the fuel tank and to subsequently release the fuel vapor to the engine. The multi-valve assembly includes a motor drive that rotates a camshaft having at least a first cam and a second cam housed in a manifold. The multi-valve assembly has a first valve and a second valve. The first valve selectively fluidly connects the fuel tank and the carbon canister. The second valve fluidly connects the carbon canister with a vent port defined in the manifold that vents to atmosphere. The controller sends signals to the multi-valve assembly based on operating conditions to open and close at least one of the first and second valves.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: September 15, 2020
    Inventors: Vaughn K. Mills, Matthew Memmer
  • Patent number: 10760533
    Abstract: A detecting unit that detects a specific pressure difference between a pressure of gas that has passed throuch a canister and a pump and a pressure of the gas before passing through the canister and the pump. A gas flow rate from the pump may be higher with a smaller pressure difference between upstream and downstream sides relative to the pump, and higher with a higher purge gas density. A gas flow rate from the canister may be lower with a smaller pressure difference between upstream and downstream sides relative to the canister, and lower with a higher purge gas density. An estimating unit may estimate a flow rate of the purge gas while the specific pressure difference is an unchanged pressure difference being a pressure at which the flow rate of the gas is not chanced by the density of the purge gas.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: September 1, 2020
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Makoto Nakagawa, Daisaku Asanuma, Masanori Sugiura
  • Patent number: 10760532
    Abstract: Methods and systems are provided for conducting an ejector system diagnostic under conditions where an engine of a vehicle is not combusting air and fuel. In one example, a method comprises directing a positive pressure to the ejector system while the engine is off in order to communicate a negative pressure with respect to atmospheric pressure on a fuel system and an evaporative emissions system of the vehicle, and indicating that the ejector system is degraded responsive to the negative pressure not reaching a vacuum build threshold. In this way, the ejector system may be diagnosed under conditions where boosted engine operation is infrequent and/or of durations insufficient for conducting such an ejector system diagnostic.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: September 1, 2020
    Assignee: Ford Global Technologies, LLC
    Inventor: Aed Dudar
  • Patent number: 10760534
    Abstract: A fuel vapor processing apparatus form an internal combustion engine provided with a turbocharger includes a canister and an ejector. The canister is configured to adsorb fuel vapor from a fuel tank. The ejector is configured to generate a negative pressure by supercharged air flowing from an intake passage on a downstream side of the turbocharger to the intake passage on an upstream side of the turbocharger, so that fuel vapor in the canister is purged by the negative pressure. The ejector includes an ejector housing extending in a discharge direction of the supercharged air. The ejector housing is welded to a tubular member defining a passage wall of the intake passage such that the supercharged air is discharged into the intake passage on the upstream side of the turbocharger and that the discharge direction of the supercharged air is parallel to a direction of flow of intake air.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: September 1, 2020
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    Inventor: Takanori Akiyama
  • Patent number: 10753293
    Abstract: A method for controlling an air-fuel ratio in an idle purge-off mode is provided. The method includes stopping feedback for an amount of fuel for a particular period of time when idle purging is terminated and performing freeze control with a constant lambda control value.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: August 25, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Tae-Gon Noh, Seung-Mook You
  • Patent number: 10738751
    Abstract: A fluid control device for an internal combustion engine, includes: plural fluid control valves each including a chamber, a first port via which fluid is introduced to the chamber, a second port via which fluid is guided out from the chamber, and a solenoid valve part opening and closing the second port with respect to the chamber; one support member for supporting and fixing the fluid control valves to a vehicle; and a branched passage having plural inlet portions communicating with the second port of the fluid control valves and an outlet portion guiding out the fluid introduced from the inlet portions, the branched passage being formed integrally with an interior of the support member. Thus, due to the branched passage being formed from the support member itself without requiring a joint member having a special shape, it is possible to cut the number of components and save installation space.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: August 11, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Shota Komatsu, Takayuki Kikuchi
  • Patent number: 10738722
    Abstract: A method for operating a drive system of a motor vehicle having a combustion engine, a fuel tank, and an evaporative emission control system, includes the following steps: opening a canister-purge valve of the evaporative emission control system; using a first sensor of the motor vehicle designed as a pressure sensor to ascertain an evaporative emission control system pressure prevailing in the evaporative emission control system between a filter device of the evaporative emission control system and the canister-purge valve; using a measurement device of the motor vehicle to ascertain an ambient pressure of the motor vehicle; using a computational device of the motor vehicle to compute a flow volume of a fluid streaming through the canister-purge valve on the basis of the ascertained evaporative emission control system pressure and the ascertained ambient pressure; and using an engine control device of the drive system of the motor vehicle to operate the drive system taking into account the computed fluid flo
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: August 11, 2020
    Assignee: VOLKSWAGEN AKTIENGESELLSCHAFT
    Inventors: Jens Wodausch, Björn Fröhlich, Silke Weddig, Michael Brand
  • Patent number: 10718282
    Abstract: Methods and systems are provided for cleaning a fuel vapor storage canister positioned in an evaporative emissions control system of a vehicle. In one example, a method comprises sealing a fuel system of the vehicle for descending an altitude change that is predicted in advance, and subsequent to the vehicle descending the altitude change, unsealing the fuel system to passively purge fuel vapors stored in the fuel vapor storage canister to a fuel tank of the vehicle. In this way, bleed through emissions from the fuel vapor storage canister may be reduced, and engine operation may be improved.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: July 21, 2020
    Assignee: Ford Global Technologies, LLC
    Inventor: Aed M. Dudar
  • Patent number: 10712228
    Abstract: A blockage diagnosis device includes a diagnosis unit that performs blockage diagnosis on a vent passage based on a change over time in an internal pressure of the vent passage in association with the operation of a negative pressure pump. A primary determination unit of the diagnosis unit makes a primary determination that the vent passage is blocked, if a first estimation volume V1 is less than a preset threshold volume Vth. A secondary determination unit of the diagnosis unit makes a secondary determination that the vent passage is blocked, if the second estimation volume V2 is less than the threshold volume Vth. If the primary determination indicating that the vent passage is blocked is made in the primary determination unit, and the secondary determination indicating that the vent passage is blocked is made in the secondary determination unit, the diagnosis unit determines that the vent passage is blocked.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: July 14, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yuichiro Murata, Hiroki Ishikawa, Daijiro Nakamura
  • Patent number: 10711735
    Abstract: An arrangement is provided for use with an internal combustion engine. The arrangement includes an intake tract for the internal combustion engine and a valve that is fluidly connected to the intake tract. An activated carbon filter is located upstream from the intake tract and the valve. The valve is connected to the carbon filter by an intake line. When the valve is open, fluid can flow from the activated carbon filter into the intake tract. A pressure sensor measures upstream pressure (p1) in the intake line. A pump helps generate the pressure (p1) in the intake line. The valve is connected to the intake tract so they cooperate together to form a cavity that is connected to the intake line such that when the valve is closed, the pressure in the cavity is the pressure (p1).
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: July 14, 2020
    Assignee: Eagle Actuator Components GmbH & Co. KG
    Inventors: Marc Schwinn, Volker Daume, Lukas Göcke
  • Patent number: 10704490
    Abstract: Provided is a method for diagnosing unintended fuelling from one or more fuel injectors of a multi cylinder internal combustion engine during engine operation. Pressurized fuel is intended to be distributed by means of said fuel injectors from said accumulator tank to the cylinders for combustion. An oxidation catalyst is arranged downstream said cylinders. The method comprises: determining the pressure in the fuel accumulator tank and whether said pressure is decreasing; and determining whether the actual amount of fuel provided by the pump unit exceeds the demanded amount of fuel. The method further comprises the steps of: determining whether the temperature associated with the oxidation catalyst is above a certain level and/or determining whether the air/fuel ratio is below a certain level and/or determining whether an amount of particulate matter is above a certain level; and confirming an unintended fuelling based on the determined conditions.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: July 7, 2020
    Assignee: Scania CV AB
    Inventors: Kim Kylström, Roger Hälleberg, Ola Stenlåås
  • Patent number: 10690083
    Abstract: The air-fuel ratio feedback control section updates an air-fuel ratio feedback correction value. The air-fuel ratio learning control section performs, in each of learning regions, learning of an air-fuel ratio learning value. If the air-fuel ratio feedback correction value converges to a value less than or equal to a specified value, the air-fuel ratio learning control section determines that learning of the air-fuel ratio learning value in the learning region has been completed. If it has not yet been determined that learning of the air-fuel ratio learning value has been completed in any of the learning regions, the air-fuel ratio learning control section collectively updates the air-fuel ratio learning values of all the learning regions at the time of updating the air-fuel ratio learning value through learning in any of the learning regions.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: June 23, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryusuke Kuroda, Masanao Idogawa
  • Patent number: 10677197
    Abstract: Methods and systems are provided for conducting an evaporative emissions test responsive to an indication of a vehicle remote engine start event. In one example, responsive to an indication of a remote start and further indication that the vehicle is not occupied, intake manifold vacuum is utilized to reduce pressure in the fuel system and evaporative emissions system to a threshold, wherein the fuel system and evaporative emissions system are sealed, and undesired evaporative emissions indicated responsive to a pressure bleed-up rate greater than a threshold. In this way, by applying intake manifold vacuum on the fuel system and evaporative emissions system while the vehicle is stationary and not occupied, engine hesitations resulting from desorption of fuel vapors from a fuel vapor canister are not experienced by the vehicle operator and/or passengers, and noise factors from driving conditions, passenger movement, etc., do not impact the evaporative emissions test.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: June 9, 2020
    Assignee: Ford Global Technologies, LLC
    Inventor: Aed M. Dudar
  • Patent number: 10677199
    Abstract: An anomaly determination device for an evaporated fuel processing device comprises: an evaporated fuel processing device (60) including a canister (61), a purge passage (62) and a purge valve (66); a first pressure sensor (43) and/or a second pressure sensor (45) for acquiring a purge downstream pressure, a third pressure sensor (53) for acquiring a canister internal pressure, and a PCM (70) that calculates a purge flow rate per unit time based on the purge downstream pressure and an opening degree of the purge valve (66), and calculates an integrated purge flow rate by integrating the purge flow rate, so as to perform an anomaly determination for the evaporated fuel processing device (60) based on the canister internal pressure and the integrated purge flow rate. The PCM (70) uses the canister internal pressure when the integrated purge flow rate becomes a predetermined flow rate or more.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: June 9, 2020
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Hidetoshi Hashimoto, Daisuke Tanaka, Yusuke Higuchi, Takayuki Kikuchi
  • Patent number: 10662902
    Abstract: A purge control solenoid valve may include a middle housing in which an inlet flow path is formed and a middle flow path is formed on a center; a valve housing in which a driving module selectively communicating the inlet flow path and the middle flow path is installed; an upper cover coupled to the upper part of the middle housing and including a upper flow path selectively communicated with the middle flow path on the center; and a membrane provided on the upper cover and selectively communicating the middle flow path and the upper flow path.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: May 26, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, HYUNDAI KEFICO CORPORATION
    Inventors: Choo Saeng Choi, Ahn Hee Lee
  • Patent number: 10662900
    Abstract: An evaporative emissions control system includes a first vent valve configured to selectively open and close a first vent, a second vent valve configured to selectively open and close a second vent, a fuel level sensor configured to sense a fuel level in the fuel tank, a pressure sensor configured to sense a pressure in the fuel tank, an accelerometer configured to measure an acceleration of the vehicle, and a controller configured to regulate operation of the first and second vent valves to provide pressure relief for the fuel tank. The controller is programmed to determine if a refueling event is occurring based one signals indicating the fuel level is increasing, the pressure in the fuel tank is increasing, and the vehicle is not moving, and open at least one of the first and second vent valves based on determining the refueling event is occurring.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: May 26, 2020
    Assignee: Eaton Corporation
    Inventors: Max Russell Franklin, Nikhil Nahar, Vaughn Kevin Mills, Mark Beaupre, Matthew Memmer, Steven L. Ambrose, Robert P. Benjey, Kenneth Brauning
  • Patent number: 10655568
    Abstract: A fuel vapor purge system may include a turbocharger including a turbine disposed in an exhaust line, and a compressor; a canister connected to a fuel tank through a vapor line; a fuel pressure detector configured for detecting pressure in the fuel tank; a canister closing valve selectively closing an atmospheric path provided in the canister; a purge control solenoid valve disposed in a main purge line connected to the canister and selectively closing fuel vapor collected at the canister; a first check valve disposed in a first purge line and preventing the fuel vapor flowing along the first purge line from flowing reversely; a second check valve disposed in a second purge line preventing the fuel vapor flowing along the second purge line from flowing reversely; a differential pressure generating valve disposed in the intake line, and generating negative pressure; and an intake pressure sensor disposed in the intake line between the differential pressure generating valve and the compressor.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: May 19, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Choo Saeng Choi, Il Nam Lee, Sang Bong Han
  • Patent number: 10655552
    Abstract: A canister purge control method for a vehicle can reduce the number of components of an active purge system provided in the vehicle. An active purge operation is performed using a pressure value measured by an intake pressure sensor, instead of a pressure value measured by a rear-end pressure sensor, after a purge control solenoid valve is fully opened.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: May 19, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Seung Bum Kim
  • Patent number: 10655570
    Abstract: An evaporative emissions (EVAP) system and its method of control comprise commanding a three-way valve to fluidly connect an auxiliary vapor canister and a bottom portion of a fuel tank, controlling at least one of an engine of the vehicle and a purge pump of the EVAP system disposed between the engine, a separate primary vapor canister, and the auxiliary vapor canister to draws fuel vapor from the fuel tank into the auxiliary vapor canister for storage, commanding the three-way valve to fluidly connect the bottom portion of the fuel tank to an atmosphere outside of the EVAP system to generate additional fuel vapor in the fuel tank, commanding the three-way valve to fluidly connect the auxiliary vapor canister to the atmosphere, and controlling at least one of the engine and the purge pump to draw the fuel vapor from the auxiliary vapor canister into the engine.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: May 19, 2020
    Assignee: FCA US LLC
    Inventors: Roger C Sager, Nithin Baradwaj, Joseph M, Matthew M Delleree, Gregg T Black, Jennifer Bartaszewicz, James J Daley, David R Pedro, Ruoming Gu, Edward E Baker
  • Patent number: 10638013
    Abstract: Systems and methods for processing online data are disclosed. One such method includes receiving a plurality of data points in a time-series at a short term storage. The method also includes calculating at least one approximation coefficient based on the plurality of data points using a wavelet transform, including calculating a highest level approximation coefficient, and calculating estimated value based on the highest level approximation coefficient. The method further includes calculating differences between the estimated value and the plurality of data points of the short term storage, and determining whether a maximum difference among the calculated differences is less than a predetermined threshold. The method further includes, based on the maximum difference being greater than or equal to the predetermined threshold, storing the oldest data point of the short term storage in a long term storage.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: April 28, 2020
    Assignee: Chevron U.S.A. Inc.
    Inventors: Alisha Deshpande, Lisa Ann Brenskelle
  • Patent number: 10627006
    Abstract: A valve is provided having first and second flow channels connected by a passage. A sealing device is operable to open and close the passage to control fluid flow between the first and second flow channels. The sealing device includes a first sealing body and a second sealing body through which the passages extends. The first and second sealing bodies are biased together by a spring to close the passage. The first sealing body is passively movable by fluid and actively movable by an electromagnetic device to open the passage to permit fluid to flow between the first and second passages.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: April 21, 2020
    Assignee: Eagle Actuator Components GmbH & Co. KG
    Inventors: Ralf Heinrich, Daniel Koch
  • Patent number: 10612495
    Abstract: An evaporated fuel treating device includes: a canister configured to adsorb evaporated fuel generated in a fuel tank through a vapor passage; a blocking valve configured to close and open the vapor passage, the blocking valve having a stepping motor as a drive source; and a controller configured to operate the blocking valve by controlling electric power that is supplied from a predetermined power supply to the blocking valve. The controller is configured, when there is a request to drive the blocking valve, to operate the blocking valve by controlling the electric power such that when a voltage that is supplied from the power supply to the blocking valve is less than a predetermined value, a driving period which is an interval between pulses that are supplied to the stepping motor becomes long compared to when the voltage is equal to or higher than the predetermined value.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: April 7, 2020
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Keita Fukui, Makoto Yamazaki, Yoshikazu Miyabe
  • Patent number: 10605182
    Abstract: Systems and methods for operating an engine in response to a condition of an engine air intake throttle being degraded are presented. In one example, the engine air intake throttle is held closed while a position of a fuel vapor storage canister vent valve is adjusted to control air flow into the engine based on a position of an accelerator pedal. In this way, the engine air amount may be adjusted to provide additional torque from an engine while a throttle is degraded.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: March 31, 2020
    Assignee: Ford Global Technologies, LLC
    Inventor: Aed M. Dudar
  • Patent number: 10556503
    Abstract: An evaporated fuel treatment device executes a pressure reducing control while monitoring inner pressure of a fuel tank, so that when the inner pressure of the fuel tank exceeds a predetermined value prior to fueling to the fuel tank, pressure reduction progresses within a range that the flow rate of a vapor passage does not exceed the boundary flow rate where the vapor passage is closed by a valve element of an ORVR valve, and also a valve opening speed of the closing valve is made higher as the inner pressure of the fuel tank becomes lower.
    Type: Grant
    Filed: January 13, 2018
    Date of Patent: February 11, 2020
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Keita Fukui, Makoto Yamazaki, Yoshikazu Miyabe
  • Patent number: 10557441
    Abstract: An evaporated fuel processing device may include: a canister configured to adsorb fuel evaporated in a fuel tank; a purge passage through which a purge gas sent from the canister to the intake passage passes; a control valve provided on the purge passage and having a variable aperture; and a differential pressure sensor configured to detect a pressure difference between an upstream side and a downstream side of the control valve.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: February 11, 2020
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Nobuhiro Kato, Daisaku Asanuma
  • Patent number: 10550775
    Abstract: In a vaporized fuel processing apparatus in which fuel vapor within a fuel tank is adsorbed by a canister, the adsorbed vaporized fuel is drawn to an engine, a closing valve is provided connecting the fuel tank and the canister for controlling communication between the fuel tank and the canister, and a purge valve is provided connecting the canister and the engine for controlling communication between the canister and the engine. The vaporized fuel processing apparatus includes an internal pressure sensor configured to detect a pressure of a space within the fuel tank as an internal pressure, and a closing valve control means configured to open the closing valve for supplying an atmospheric pressure to the fuel tank via the canister when the sensor detects that the internal pressure of the fuel tank is negative, while the purge valve is closed. Therefore, the air/fuel ratio is prevented from being disturbed.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: February 4, 2020
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Yoshikazu Miyabe, Junya Kimoto
  • Patent number: 10550788
    Abstract: A controller for an internal combustion engine is configured to execute a dither control process, a purge control process, and a limiting process. The dither control process operates the fuel injection valves such that at least one of the cylinders is a lean combustion cylinder, in which the air-fuel ratio is leaner than the stoichiometric air-fuel ratio, and at least another one of the cylinders is a rich combustion cylinder, in which the air-fuel ratio is richer than the stoichiometric air-fuel ratio. The purge control process controls the purge flow rate by operating the adjustment device. The limiting process limits the purge control process such that, when the dither control process is being executed, the purge flow rate is reduced as compared to a case in which the dither control process is not being executed.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: February 4, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Keiichi Myojo, Yuki Nose, Eiji Ikuta
  • Patent number: 10550799
    Abstract: An evaporative emissions control system for an internal combustion engine having an air intake manifold is provided. The system includes a carbon canister configured to receive fuel vapor, a purge valve fluidly coupled to the carbon canister, an air induction system configured to fluidly couple to the air intake manifold, a conduit fluidly coupled between the purge valve and the air induction system, and an inlet valve disposed in the air induction system. The inlet valve is configured to selectively move between an open position and a closed position to vary an air restriction in the air induction system and generate a vacuum. The vacuum draws fuel vapor from the carbon canister through the conduit into the air induction system.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: February 4, 2020
    Assignee: FCA US LLC
    Inventor: Colton Wyatt
  • Patent number: 10533524
    Abstract: An apparatus for purging fuel vapor includes: a turbocharger; a recirculation valve; a canister connected with a fuel tank through a vapor line and collecting fuel vapor of fuel stored in the fuel tank; a purge control solenoid valve installed in a main purge line connected with the canister and selectively blocking the fuel vapor collected in the canister; a first check valve; a second check valve; and a differential pressure creating valve installed in the intake line at the upstream portion of the compressor, and creating negative pressure.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: January 14, 2020
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Choo Saeng Choi, Dong Hee Han
  • Patent number: 10493991
    Abstract: The systems and methods provided herein are directed to enabling a vehicle to enter into and/or exit from a transport mode using a backup fuse. The vehicle may enter into the transport mode from a normal mode when an ignition of the vehicle transitions from off to on if the backup fuse has been removed and the vehicle has been placed in park or neutral. The transport mode may, in part, reduce electrical loads and power as well as limit other components of the vehicle during shipping. The dealer, or other party, may remove the transport mode when the vehicle arrives and is ready to be sold. The vehicle may exit the transport mode when the backup fuse has been re-installed and the fuel cap or lid has been removed or opened, thus returning the vehicle to the normal mode.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: December 3, 2019
    Assignee: Honda Motor Co., Ltd.
    Inventors: Atsushi Kurauchi, Kevin Hawkins, Charles J Franklin, II, Kiyomi Catalina Ito
  • Patent number: 10457267
    Abstract: A controller controls a valve device for opening and closing of a passage to control a flow of evaporative fuel evaporating and flowing from a fuel tank. The valve device includes a valve body housed in the passage to open and close the passage, a biasing member biasing the valve body to close the passage, and a driver driving the valve body to open the fuel passage. The controller includes a detector detecting load of the driver and a determiner to determine the position of the valve body. The determiner determines that the passage is open when a magnitude of the change of the driver load is equal to or greater than a threshold value. The controller accurately detects an open valve position without detecting an internal pressure change of the fuel tank.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: October 29, 2019
    Assignee: DENSO CORPORATION
    Inventors: Hirofumi Onodera, Kunio Namba, Yasuo Kato
  • Patent number: 10451010
    Abstract: Methods and systems are provided for conducting a canister purging operation and for rationalizing components of a vehicle evaporative emission system. In one example, after completion of a refueling event, a first fuel vapor canister purge operation is conducted to desorb hydrocarbon light ends from the fuel vapor canister, and subsequently the canister is heated to desorb hydrocarbon heavy ends from the canister, which are routed to a hydrocarbon sensor to rationalize the hydrocarbon sensor, before being purged to engine intake in a second purging operation. In this way, a fuel vapor storage canister may be thoroughly cleaned of hydrocarbon light ends and hydrocarbon heavy ends, while additionally indicating whether a canister heating element, and a hydrocarbon sensor positioned between the canister and atmosphere, are functioning as desired.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: October 22, 2019
    Assignee: Ford Global Technologies, LLC
    Inventor: Aed M. Dudar
  • Patent number: 10428771
    Abstract: A vaporized-fuel processing apparatus includes an intake passage, a chamber, a first purge guide hole, and a second purge guide hole. The intake passage is defined by an intake manifold and a throttle body. The chamber communicates with the intake passage. The first purge guide hole is to guide vaporized fuel adsorbed in a canister toward the chamber. The second purge guide hole is to guide the vaporized fuel adsorbed in the canister toward the chamber.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: October 1, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Mitsunobu Yamamoto, Kazunori Koura, Takayuki Namai
  • Patent number: 10408143
    Abstract: Methods and systems are provided for rationalizing a hydrocarbon sensor in a hybrid vehicle, the hydrocarbon sensor used for feed-forward air/fuel ratio control during fuel vapor canister purging events. In one example, a method comprises routing blow-by gasses from a crankcase of an engine of the vehicle to an intake manifold of the engine and then to a fuel vapor storage canister, and indicating whether the hydrocarbon sensor is functioning as desired based on a magnitude of a response of the hydrocarbon sensor during the routing. In this way, the hydrocarbon sensor may be diagnosed under conditions when the canister is substantially free from fuel vapors, and where engine run-time is limited.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: September 10, 2019
    Assignee: Ford Global Technologies, LLC
    Inventor: Aed Dudar
  • Patent number: 10400688
    Abstract: An evaporated fuel processing apparatus is provided with an initializer configured to increase a step number with which a stepping motor is rotated in a valve closing direction, when there is an initialization request for the blocking valve and tank pressure of the fuel tank is in a predetermined pressure range near atmospheric pressure, in comparison with when the tank pressure is out of the predetermined pressure range.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: September 3, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Keita Fukui, Makoto Yamazaki, Yoshikazu Miyabe
  • Patent number: 10378469
    Abstract: An evaporated fuel treating device includes a canister, a first purge passage connected to the canister, a second purge passage connected to a second end of the first purge passage and an intake passage, a purge control valve disposed in the first purge passage, a pulsation detection sensor disposed in the second purge passage, and an electronic control unit configured to execute abnormality detection control that detects abnormality of the second purge passage. The electronic control unit is configured to detect pulsation of a purge gas flowing through the second purge passage, based on an output signal from the pulsation detection sensor when the electronic control unit execute a control that opens and closes the purge control valve, and determine abnormality of the second purge passage, based on the detected pulsation.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: August 13, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Leuth Insixiengmai
  • Patent number: 10379022
    Abstract: An air-mass measuring apparatus for a vehicle, that has a support element, an air-mass sensor for providing air-mass data, the air-mass sensor being disposed on the support element, at least one further sensor for providing further sensor data, the at least one further sensor being disposed on the support element, and an evaluation circuit having a first input interface to receive the air-mass data, at least one second input interface to receive the further sensor data and having an output interface, the evaluation circuit being disposed on the support element and being designed to provide the air-mass data and the further sensor data as bundled sensor data via the output interface.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: August 13, 2019
    Assignee: ROBERT BOSCH GMBH
    Inventors: Norbert Schneider, Michael Horstbrink, Uwe Konzelmann, Andreas Kuehn, Michael Rittmann
  • Patent number: 10371075
    Abstract: An EGR rate estimation method using an EGR valve opening area involves aggravated EGR rate estimation accuracy as an EGR valve is deteriorated and is unable to satisfy required accuracy when a target EGR rate is high. With a method for correcting a fuel injection amount by a fuel injection valve through estimation of a purge air-fuel ratio on the basis of variations in an air-fuel ratio variable depending on whether purging is performed, the fuel injection correction fails to accommodate the change in the air-fuel ratio when concentration of fuel evaporative emissions adsorbed by an activated carbon of a canister is high, resulting in reduced conversion efficiency of a catalyst. An arrangement includes an introduction port that is disposed in an intake pipe and through which a gas other than fresh air flows in the intake pipe and humidity sensors disposed upstream and downstream, respectively, of the introduction port.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: August 6, 2019
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Shinya Matohara, Yoshihiko Akagi, Seiji Asano, Kazuhiro Oryoji
  • Patent number: 10363812
    Abstract: A vapour recovery system recovers vapour coming from a vehicle tank. The system includes a valve that is positionable in a closed position, an open position creating a passageway with a first size, and one or more intermediate positions each creating a passageway with a size smaller than the first size. The system also includes an electronic controller to control an actuator to position the valve in a sequence of positions over time. The sequence includes at least one of the intermediate positions during a time period larger than 1 second. The valve is arranged in a line of the vapour recovery system between a vapour outlet of the vehicle tank and the atmosphere. The actuator is a stepper-motor based linear actuator. The controlling includes selecting at least one intermediate position, and the selection includes selecting a number of steps to be set from a predetermined reference position.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: July 30, 2019
    Assignee: Plastic Omnium Advanced Innovation and Research
    Inventor: David Hill
  • Patent number: 10352260
    Abstract: A fuel vapor purge system includes: a fuel tank; a canister; a passage component that defines an intake passage of an internal-combustion engine; a purge pump pumping vapor fuel; and a valve device having a valve object, a main part having an internal passage, an inflow port through which the vapor fuel pumped from the canister flows into the main part, an outflow port connected with the inflow port through the internal passage and being opened to the intake passage, and a leak port connected with the inflow port through the internal passage and being opened to outside of the main part. The leak port has a leak preventive structure which prevents the vapor fuel from leaking to outside when the valve device is attached to the passage component such that the vapor fuel is able to flow into the intake passage.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: July 16, 2019
    Assignee: Hamanakodenso Co., Ltd.
    Inventor: Hideya Tochihara
  • Patent number: 10316799
    Abstract: A first electromagnetic valve includes a suction port that communicates with a purge pipe and sucks vaporized gas from a canister, a discharge port that communicates with a first purge pipe and discharges the vaporized gas to a downstream side of a throttle, a branch port that communicates with second purge pipes to which a second electromagnetic valve is attached and causes the vaporized gas to branch off to an upstream side of a compressor, a branch passage that diverges into and communicates with the suction port, the discharge port and the branch port. The branch passage includes a chamber having an inner diameter larger than each inner diameter of the ports.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: June 11, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Yutaro Tawa
  • Patent number: 10316953
    Abstract: An assembly of a lubrication system for fluid machinery includes a transmission shaft, an oil-injection insulating ring and a labyrinth ring. The transmission shaft defines axially power and passive sides. The power side includes a body unit having first and second bearings. The oil-injection insulating ring located between the first and second bearings sleeves the transmission shaft and connects a fuel-supply looping having outer and inner rings. The outer ring has at least one first hole communicatively connected with the fuel-supply looping. The labyrinth ring having first and second axial ends has outer diameters tapering from the second axial end to the first axial end. The first and second axial ends face the power and passive sides, respectively. A circumference of the labyrinth ring includes circular grooves to form a circumferential step-like structure. The labyrinth ring sleeves the transmission shaft and is embedded into the body unit.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: June 11, 2019
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Ying-Che Weng, Teng-Yuan Wu, Jer-Lin Huang, Jyh-Nan Ho, Chun-Hsiang Yang
  • Patent number: 10308103
    Abstract: A feed pump supplies fuel to a port injection valve of an engine through low pressure fuel piping by applying a pressure to fuel. An engine ECU controls a fuel pressure which is a pressure applied to fuel by driving the feed pump. When the feed pump is driven to lower the fuel pressure, and it is determined that vapor is generated in the fuel piping, the engine ECU executes a fuel pressure control that increases the fuel pressure provided at the time of determination.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: June 4, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Akihiro Kaneko
  • Patent number: 10302031
    Abstract: Methods and systems are provided for operating an evaporative emissions system in a turbocharged engine. In one example, a method may include pulsing open a canister purge valve responsive to the turbocharged engine entering a boosted mode of operation. The canister purge valve may be opened for a duration long enough to close a check valve coupled between the canister purge valve and an intake of the engine.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: May 28, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Aed M. Dudar, Kevin William Plymale, Charlie P. Threadingham, David Martin, Terry Vandenbrink, Mark W. Peters
  • Patent number: 10294895
    Abstract: An abnormality sensing device for an evaporation fuel purge system is equipped with a purge passage that connects a canister to an intake passage of an internal combustion engine, a purge pump, a purge control valve, and a valve component that closes and opens the purge passage at a target passage including at least a first purge passage defined between the purge control valve and the intake passage. An abnormality determining portion detects a physical quantity relevant to a pressure change in the target passage in a determination possible state where the purge control valve allows the evaporation fuel to flow through the first purge passage and where the valve component prohibits the evaporation fuel from being supplied to the intake passage.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: May 21, 2019
    Assignees: HAMANAKODENSO CO., LTD., DENSO CORPORATION
    Inventor: Kosuke Shirai
  • Patent number: 10287941
    Abstract: Methods and systems are provided for expediting catalyst warm-up. In one example, a method may include flowing exhaust gas from an engine first through an emission control device and then through a turbine to rotate the turbine in a reverse direction, the rotation of the turbine in the reverse direction generating intake manifold vacuum for a vacuum consumer via a compressor coupled to the turbine. In this way, heat loss through a turbine may be avoided.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: May 14, 2019
    Assignee: Ford Global Technologies, LLC
    Inventor: Xiaogang Zhang
  • Patent number: 10280851
    Abstract: Disclosed are a method and device for determining a model of flowrate for a valve, including: instantiation of the model initially equal to an approximate model; choosing flowrate setting; determination of an initial command corresponding to the flowrate setting by the model; application of the initial command to the valve; observation of a discrepancy indicative of a difference between the flowrate setting and a flowrate achieved; if the discrepancy is not zero, application of a correction to the initial command, and return to the application step; if the discrepancy is zero, correction of the model by replacing, for the flowrate setting, the initial command by the corrected command, where the flowrate passing through the valve ends up in a combustion engine admission collector including a small-area controller regulating the flowrate of air admitted, and where the discrepancy of the observation step is the deviation of the small-area controller.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: May 7, 2019
    Assignees: CONTINENTAL AUTOMOTIVE FRANCE, CONTINENTAL AUTOMOTIVE GMBH
    Inventor: Thierry Collet
  • Patent number: 10280820
    Abstract: An evaporative emission control canister system comprises an initial adsorbent volume having an effective incremental adsorption capacity at 25° C. of greater than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, and at least one subsequent adsorbent volume having an effective incremental adsorption capacity at 25° C. of less than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, an effective butane working capacity (BWC) of less than 3 g/dL, and a g-total BWC of between 2 grams and 6 grams. The evaporative emission control canister system has a two-day diurnal breathing loss (DBL) emissions of no more than 20 mg at no more than 210 liters of purge applied after the 40 g/hr butane loading step.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: May 7, 2019
    Assignee: INGEVITY SOUTH CAROLINA, LLC
    Inventors: Laurence H. Hiltzik, Peter D. McCrae, James R. Miller, Roger S. Williams
  • Patent number: 10267267
    Abstract: An evaporated fuel processing device includes a flow control valve that is used as a valve to be installed in a pathway connecting a canister and a fuel tank. The device includes an inner pressure sensor configured to detect a pressure in an interior space of the fuel tank as an inner pressure, a valve-opening start position determination means configured to calculate a second order differential value of the inner pressure after a valve opening operation of the flow control valve is started and to determine a valve opening position of the flow control valve as a valve-opening start position when the second order differential value is equal to or greater than a first predetermined value, and a learning means configured to store the valve-opening start position as a learned value that is used when a valve-opening control of the flow control valve is performed.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: April 23, 2019
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Junya Kimoto, Yoshikazu Miyabe
  • Patent number: 10267248
    Abstract: An evaporated fuel processing device configured to adsorb evaporated fuel in a fuel tank to a canister and to feed the adsorbed evaporated fuel to an engine. The device includes an inner pressure sensor configured to detect a pressure in an interior space of the fuel tank, a valve-opening start position determination means configured to change the stroke amount of a flow control valve from an initial condition and to determine a valve-opening start position of the flow control valve based on a requirement that a range of variation of the inner pressure is equal to or greater than a predetermined value, a learning means configured to store the valve-opening start position, and a prohibition means configured to prohibit the valve-opening start position determination means from determining the valve-opening start position when the inner pressure falls within a predetermined pressure range relative to the atmospheric pressure.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: April 23, 2019
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Junya Kimoto, Yoshikazu Miyabe