Actuator Circuit (e.g., Engine Condition Responsive Electronic Circuit Actuates Injector Valve) Patents (Class 123/478)
  • Patent number: 11118515
    Abstract: Present embodiments provide a throttle body which may be used with a variety of engines of different manufacturers. The throttle body may be used to replace mechanical or hydraulically controlled carburetors with electronic fuel injection. The throttle body may provide improved fuel pathways and fuel injector placement.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: September 14, 2021
    Assignee: Holley Performance Products, Inc.
    Inventors: Laura Shehan, Amy Gieske, Jonathan Sams, Adam Layman
  • Patent number: 11092105
    Abstract: An energization instruction switch switches energization instruction signals to instruct energization of fuel injection valves. A first cylinder designation switch designates one of the energization instruction signals to designate a valve closing detection cylinder. A valve closing detection unit monitors downstream voltage of the fuel injection valve to detect occurrence of an inflection point in change of the downstream voltage to detect a valve closing. A second cylinder designation switch designates one of the downstream voltages and designates the valve closing detection cylinder. A valve closing time measuring unit measures a valve closing time, which is from a switching timing of the energization instruction signal from ON to OFF to a valve closing detection timing, for injection of the valve closing detection cylinder. A valve closing time learning unit learns the valve closing time measured by the valve closing time measuring unit.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: August 17, 2021
    Assignee: DENSO CORPORATION
    Inventors: Masashi Inaba, Yuusuke Shimizu
  • Patent number: 11078861
    Abstract: The fuel injection control device and fuel injection control method according to the present invention allow a fuel injection device to perform fuel injection in the case where an open period of the intake valve and an open period of the exhaust valve overlap with each other, and sets the timing to start injection to the closing timing of the exhaust valve, and that sets the timing to end injection to the timing at which a deceleration rate of intake air speed becomes the local maximum. As such, the homogeneity of in-cylinder air-fuel mixture can be improved while preventing the adhesion of fuel to the inner wall of the intake port and the blow-through of fuel to the exhaust passage from occurring.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: August 3, 2021
    Assignee: Hitachi Astemo, Ltd.
    Inventors: Kohsuke Kanda, Atsushi Murai, Yoshitatsu Nakamura
  • Patent number: 11073100
    Abstract: Calibration techniques for forced-induction engines having low pressure cooled exhaust gas recirculation (LPCEGR) systems include commanding an EGR to a fully-closed position, after the EGR valve has reached the fully-closed position, commanding the engine to operate at fixed steady-state conditions for a calibration period, wherein the fixed steady-state conditions comprise at least a fixed throttle valve angle, a fixed injected fuel mass, and a fixed cylinder air/fuel ratio (AFR), during the calibration period, increasingly opening the EGR valve and monitoring a AFR of exhaust gas produced by the engine, calibrating an EGR fraction estimation and EGR transport delay model based on previously measured and/or modeled total engine flow and the monitored exhaust gas AFR during the calibration period, and storing the calibrated model at a memory of a controller of the engine for future usage to improve engine operation.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: July 27, 2021
    Assignee: FCA US LLC
    Inventors: Tyler Tutton, William P Attard
  • Patent number: 11067012
    Abstract: Fuel management system for enhanced operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder. It is preferred that the direct injection occur after the inlet valve is closed. It is also preferred that stoichiometric operation with a three way catalyst be used to minimize emissions. In addition, it is also preferred that the anti-knock agents have a heat of vaporization per unit of combustion energy that is at least three times that of gasoline.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: July 20, 2021
    Assignee: Massachusetts Institute of Technology
    Inventors: Leslie Bromberg, Daniel R. Cohn, John B. Heywood
  • Patent number: 11053870
    Abstract: Fuel management system for enhanced operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder. It is preferred that the direct injection occur after the inlet valve is closed. It is also preferred that stoichiometric operation with a three way catalyst be used to minimize emissions. In addition, it is also preferred that the anti-knock agents have a heat of vaporization per unit of combustion energy that is at least three times that of gasoline.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: July 6, 2021
    Assignee: Massachusetts Institute of Technology
    Inventors: Leslie Bromberg, Daniel R. Cohn, John B. Heywood
  • Patent number: 11035311
    Abstract: A method for controlling the air-fuel ratio of a vehicle includes: calculating the air amount charged in a cylinder of an engine by using a fresh air amount, a residual air amount remaining inside the cylinder of the engine, and a backflow gas amount flowing back into the cylinder upon the valve overlap of an intake vale and an exhaust valve of the engine, correcting it with the purge gas flow rate supplied to an intake manifold of the engine when the active purge system is operated, calculating the final fuel amount by correcting the fuel amount injected by a fuel injection device with the amount of the fuel component contained in the purge gas when the active purge system is operated, and controlling the air-fuel ratio based on the final air amount and the final fuel amount.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: June 15, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Young-Kyu Oh
  • Patent number: 11002213
    Abstract: Provided are an internal combustion engine control device and control method in which a multi-injection process comprises performing an intake synchronized injection and an intake asynchronous injection to inject a required injection amount of fuel by operating a port injection valve for injecting fuel into an intake passageway. A variable process includes variably setting an injection timing for the intake synchronized injection on the basis of at least two of three parameters. The injection timing for the intake synchronized injection is expressed by the rotation angle of a crank shaft of an internal combustion engine. The three parameters include a rotational speed of the crank shaft of the internal combustion engine, a valve-opening start timing of an intake valve, and a temperature of an intake system of the internal combustion engine.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: May 11, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takahiko Niwa, Masanori Toya, Takashi Yoshida, Takayuki Omachi
  • Patent number: 10974278
    Abstract: The present invention concerns a vibration element like for example a sonotrode with a component fixed thereto. To provide a vibration element having a component fixed thereto, which is simple to manufacture, has a long service life and in addition prevents detachment of the component from the sonotrode, it is proposed according to the invention that the vibration element has a bore and the component has a fixing portion fitted in the bore, wherein arranged between the fixing portion and the bore is an elastic element which is either elastically deformed, and more specifically preferably parallel to the bore axis, or is arranged at least partially within a recess provided in the inside surface of the bore in such a way that the component can be removed from the bore only by elastic deformation of the elastic element.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: April 13, 2021
    Assignee: HERRMANN ULTRASCHALLTECHNIK GMBH & CO. KG
    Inventor: Michael Knorr
  • Patent number: 10975778
    Abstract: A control device for controlling an internal combustion engine equipped with an engine body, a variable compression ratio mechanism A configured to be able to change a mechanical compression ratio of the engine body, and an intake system configured to be able to make exhaust discharged from combustion chambers of the engine body be recirculated to an intake passage of the engine body. The control device is provided with a compression ratio control part controlling the variable compression ratio mechanism A so that the mechanical compression ratio becomes the target compression ratio. The compression ratio control part sets the target compression ratio at a lower value when exhaust is being recirculated at a predetermined operating region at an engine low load side than when exhaust is not being recirculated.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: April 13, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshiyuki Yamashita, Yukihiro Nakasaka, Hiroki Murata
  • Patent number: 10968807
    Abstract: A catalyst deterioration detection system 1 comprises an air-fuel ratio sensor 41, a current detection device 61, a voltage application device 60, a voltage control part 71, an air-fuel ratio control part 72 and a deterioration judging part 73. The air-fuel ratio control part executes fuel cut control, and, after the fuel cut control, executes rich control. The voltage control part, if judging that the air-fuel ratio of the outflowing exhaust gas has reached the stoichiometric air-fuel ratio when setting the applied voltage to a first voltage in a limit current region during the rich control, changes the applied voltage from the first voltage to a second voltage in a limit current region. The deterioration judging part judges the degree of deterioration of the catalyst based on the output current of the air-fuel ratio sensor when the applied voltage is set to the second voltage.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: April 6, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Keiichiro Aoki
  • Patent number: 10968854
    Abstract: A port injection valve injects fuel into an intake passage. A base injection amount is an injection amount proportional to an amount of fresh air introduced into a cylinder of an internal combustion engine. A division process involves dividing the base injection amount into a synchronous injection amount and an asynchronous injection amount. In an intake-synchronous injection, the fuel is injected in synchronization with a period in which an intake valve is open. In an intake-asynchronous injection, the fuel is injected at a time advanced with respect to the intake-synchronous injection. In a selective correction process, the asynchronous injection amount is corrected according to a required correction amount for the base injection amount, and the synchronous injection amount is not corrected.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: April 6, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koumei Miyata, Masanori Toya, Masanao Idogawa, Kosuke Sasaki
  • Patent number: 10955047
    Abstract: A vehicle control apparatus including a torque transmission detecting part detecting a torque transmission state switched by a torque transmission switching part and a microprocessor configured to perform setting a target speed of an internal combustion engine in accordance with the torque transmission state detected by the torque transmission detecting part. The microprocessor is configured to perform the setting including increasing the target speed when a switch to the off-gear state is detected by the torque transmission detecting part after a switch instruction to an off-gear state the first is output by a first switch instruction part, while not increasing the target speed even when the switch to the off-gear state is detected by the torque transmission detecting part after a switch instruction to a reverse in-gear state or forward in-gear state is output by the second switch instruction part.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: March 23, 2021
    Assignee: Honda Motor Co., Ltd.
    Inventor: Yoshihiro Kazusa
  • Patent number: 10900438
    Abstract: An apparatus includes an input module structured to interpret a fuel pressure command indicative of a target fuel pressure within an accumulator and a target fuel injection characteristic, a pump module structured to control a pump assembly to provide fuel to the accumulator to maintain the target fuel pressure within the accumulator, an injector module structured to control a plurality of fuel injectors to inject fuel into an engine based on the target fuel injection characteristic, a pressure module structured to interpret pressure data regarding an actual fuel pressure within the accumulator and to determine a pressure difference between the target fuel pressure and the actual fuel pressure, and a modulation module structured to determine a final fuel injection command responsive to the pressure difference exceeding a first magnitude threshold where the final fuel injection command is based on the pressure difference and the target fuel injection characteristic.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: January 26, 2021
    Assignee: Cummins, Inc.
    Inventors: Mark N. Bays, Michael R. Tidwell
  • Patent number: 10876486
    Abstract: A fuel injection control device first causes a first power supply unit to apply a voltage to a fuel injection valve, subsequently causes a second power supply unit to apply a voltage to the fuel injection valve, and after the first power supply unit applies the voltage, executes a lift position determination process to determine that a valve element of the fuel injection valve reaches a predetermined lift position based on a change in a drive current. A first control unit performs a drive control on the fuel injection valve without executing the lift position determination process. A second control unit executes the lift position determination process and performs a drive control on the fuel injection valve. The second control unit controls the drive current to decrease when the valve element reaches the predetermined lift position compared to a case where the first control unit performs drive control.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: December 29, 2020
    Assignee: DENSO CORPORATION
    Inventor: Kazuya Kogo
  • Patent number: 10859026
    Abstract: In the communication interruption state in which the transmission of a drive control command value DUTY from an engine control unit (ECU) 1 to a fuel pump driver (FPD) 2 is disabled, the FPD 2 is configured so as to drive a fuel pump 4 by using the maximum command value DTYMAX (100%) as a drive control command value DUTY. A stop state of the fuel pump 4 is maintained even if the drive control command value DUTY is the maximum command value DTYMAX when an ignition switch 21 is in the OFF State so as to have stopped the fuel pump 4, while the fuel pump 4 is driven when the ignition switch 21 is in the ON state and the drive control command value DUTY is the maximum command value DTYMAX.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: December 8, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Shoji Sasaki, Kazunori Kawamura, Kazuhiro Kobayashi, Akira Kobayashi
  • Patent number: 10823103
    Abstract: In the communication interruption state in which the transmission of a drive control command value DUTY from an engine control unit (ECU) 1 to a fuel pump driver (FPD) 2 is disabled, the FPD 2 is configured so as to drive a fuel pump 4 by using the maximum command value DTYMAX (100%) as a drive control command value DUTY. A stop state of the fuel pump 4 is maintained even if the drive control command value DUTY is the maximum command value DTYMAX when an ignition switch 21 is in the OFF State so as to have stopped the fuel pump 4, while the fuel pump 4 is driven when the ignition switch 21 is in the ON state and the drive control command value DUTY is the maximum command value DTYMAX.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: November 3, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Shoji Sasaki, Kazunori Kawamura, Kazuhiro Kobayashi, Akira Kobayashi
  • Patent number: 10774771
    Abstract: A control system for an engine includes one or more processors configured to determine when a change in one or more of oxygen or fuel supplied to an engine. The one or more processors also are configured to, responsive to determining the change in oxygen and/or fuel supplied to an engine, direct one or more fuel injectors of the engine to begin injecting fuel into one or more cylinders of the engine during both a first fuel injection and a second fuel injection during each cycle of a multi-stroke engine cycle of the one or more cylinders.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: September 15, 2020
    Assignee: GE GLOBAL SOURCING LLC
    Inventors: Roy James Primus, Thomas Michael Lavertu, Adam Edgar Klingbeil
  • Patent number: 10760522
    Abstract: The deterioration of combustion due to condensed water flowing into a cylinder is suppressed as much as possible. A control apparatus for an internal combustion engine is applied to an internal combustion engine which includes a fuel injection valve that directly injects fuel into a cylinder and a spark plug. The internal combustion engine is constructed so that the fuel goes to the spark plug. The control apparatus comprising a controller configured to: predict whether condensed water flows into the cylinder during an intake stroke; and carry out first injection control to perform fuel injection in a predetermined period of time within a period of time which is after closure of an exhaust valve and before the condensed water flows into the cylinder, and second injection control to perform fuel injection in a compression stroke before ignition, if an inflow of the condensed water into the cylinder is predicted.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: September 1, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshinori Manju, Kei Takachiho
  • Patent number: 10746125
    Abstract: A port injection valve injects fuel into an intake passage. An intake synchronous injection is to inject fuel in synchronization with an opening period of an intake valve. A single injection process is to execute only an intake air non-synchronous injection. A majority of a fuel injection period of the single injection process is prior to the opening timing of the intake valve. A controller causes, when switching a fuel injection process from the single injection process to a multiple injection process, an injection start timing of the intake air non-synchronous injection to be more advanced than an injection start timing of the single injection process prior to the switching.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: August 18, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yusuke Takata, Masanori Toya, Masanao Idogawa
  • Patent number: 10731584
    Abstract: A fuel injection control device has a conduction time calculation unit, a setting unit, a conduction control unit, a detection unit, an estimation unit, and a changing unit. The conduction time calculation unit calculates a conduction time of an electric actuator corresponding to a requested injection quantity during partial lift injection. The setting unit sets a command conduction time. The conduction control unit energizes an electric actuator on the basis of a command conduction time set by the setting unit. The detection unit detects a physical quantity having a correlation with an actual injection quantity during partial lift injection. The estimation unit estimates an actual injection quantity on the basis of a detection result of the detection unit. The changing unit changes a lower limit time on the basis of a deviation between an estimated actual injection quantity and a requested injection quantity.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: August 4, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Nobuyuki Satake, Tomohiro Nakano
  • Patent number: 10704487
    Abstract: A method of controlling the operation of a solenoid activated fuel injector, actuator being operated by applying a activation pulse profile to the solenoid. The method includes measuring the voltage across, or current through, the solenoid during a time period of the valve closing phase, subsequent to a valve opening phase. The method also includes determining at least one parameter from the measuring step. The method also includes controlling and varying the activation pulse profile during a subsequent activation/fueling cycle of the fuel injector based on the parameter.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: July 7, 2020
    Assignee: DELPHI AUTOMOTIVE SYSTEMS LUXEMBOURG SA
    Inventors: Peter Baur, Heise Volker
  • Patent number: 10641194
    Abstract: Disclosed herein is a vehicle having improved engine startability using hardware wake-up period control by performing a vehicle state detection mode to which a battery voltage, an engine oil temperature, and an engine coolant temperature are applied by a controller in a key-off state of an engine, a wake-up fuel pressure control mode for determining whether a soaking time reaches a wake-up set time by the count of a key-off timer for 80 minutes, a pump operation control mode for operating a low-pressure fuel pump for approximately 1 second by the current supplied in response to a key-off output signal over the period of 80 minutes, and a wake-up repetition control mode for repeating a number of times the low-pressure fuel pump is operated to maximum 6 times.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: May 5, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Bon-Chang Koo
  • Patent number: 10634082
    Abstract: A method for matching the performance of a plurality of electronic fuel injectors, includes: applying a supply voltage to a control module; applying an operating voltage signal having a pulse width to each of the plurality of electronic fuel injectors individually via the control module; measuring an amount of time that each of the plurality of electronic fuel injectors supplies fuel; individually adjusting an operating voltage supplied to each of the plurality of electronic fuel injectors to cause each of the electronic fuel injectors to deliver fuel for a substantially same amount of time.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: April 28, 2020
    Assignee: BG SOFLEX LLC
    Inventors: Bruce A. Bowling, Albert C. Grippo
  • Patent number: 10634103
    Abstract: In a fuel injection valve, a movable structure includes: a movable core that includes a first attractive surface and a second attractive surface, which are configured to be attracted toward at least one stationary core when a coil is energized; and an elongated shaft member that has a length, which is measured in a moving direction of the movable structure and is larger than a length of the movable core, which is measured in the moving direction. A modulus of longitudinal elasticity of the elongated shaft member is larger than a modulus of longitudinal elasticity of the movable core.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: April 28, 2020
    Assignee: DENSO CORPORATION
    Inventor: Keita Imai
  • Patent number: 10605189
    Abstract: A communication system includes a flow measuring device and a control device. The flow measuring device includes a flow sensor that generates a flow rate signal which is a signal in accordance with a flow rate of intake air drawn into an internal-combustion engine. The flow measuring device transmits the flow rate signal. The control device receives the flow rate signal and performs at least one of injection control of fuel to be supplied to the engine and ignition control at each cylinder of the engine based on the received flow rate signal. The flow measuring device includes a measurement-side transmitting part that transmits various signals by wireless communication, and transmits the flow rate signal by the measurement-side transmitting part. The control device includes a control-side receiving part that receives the various signals by the wireless communication, and receives the flow rate signal by the control-side receiving part.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: March 31, 2020
    Assignee: DENSO CORPORATION
    Inventor: Yasushi Kohno
  • Patent number: 10598105
    Abstract: A method for controlling a forced induction engine includes: determining a first air pressure upstream of an air compressor, the air compressor supplying compressed air to the engine; determining a second air pressure downstream of the air compressor; determining a limit air flow rate to the engine corresponding to the surge limit of the air compressor based at least in part on the first and second air pressures; and controlling a throttle valve actuator to position the throttle valve at a position providing an air flow rate that is greater than or equal to the limit air flow rate. A vehicle power pack having a control unit implementing the method and a vehicle having the vehicle power pack are also disclosed.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: March 24, 2020
    Assignee: BOMBARDIER RECREATIONAL PRODUCTS INC.
    Inventors: Christian Reisenberger, Frederic Morin
  • Patent number: 10508609
    Abstract: When imbalance diagnosis is not executed, target fuel pressure is set based on a rotation speed and volumetric efficiency of an engine, and when the imbalance diagnosis is executed, fuel pressure smaller than the target fuel pressure settable when the imbalance diagnosis is not executed is set as the target fuel pressure, and a high-pressure fuel pump that supplies fuel to a delivery pipe connected to the in-cylinder injection valve, is driven and controlled such that detected fuel pressure becomes the target fuel pressure. With this, it is possible to execute the imbalance diagnosis with higher accuracy.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: December 17, 2019
    Assignees: Toyota Jidosha Kabushiki Kaisha, Toyota Technocraft Co., Ltd.
    Inventors: Keisuke Nagakura, Jun Hattori
  • Patent number: 10502156
    Abstract: An engine includes a fuel injector, an atmospheric pressure sensor, and an engine controller coupled to the fuel injector. The atmospheric pressure sensor detects the atmospheric pressure. The engine controller includes a first control device and a second control device. The first control device is configured to determine whether the engine is in a steady state or a transient state. The second control device is configured to calculate a fuel injection timing in the steady state, a the fuel injection timing in the transient state, and an atmospheric pressure correction process for correcting the fuel injection timing on the basis of the atmospheric pressure. The atmospheric correction process is performed only in the steady state to avoid redundancy. The engine controller outputs a final injection timing to the fuel injector as a result of the calculated fuel injection timing and the calculated atmospheric correction process.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: December 10, 2019
    Assignee: YANMAR CO., LTD.
    Inventors: Tomohiro Otani, Atsuhito Iwase
  • Patent number: 10458493
    Abstract: A control device according to an embodiment includes a storage, a determining unit, and a driving unit. The storage stores therein information on a hysteresis area of an actuator. The determining unit determines, based on a control mode, a target current value according to the hysteresis area whose information is stored in the storage. The driving unit supplies a driving current according to the target current value determined by the determining unit to the actuator.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: October 29, 2019
    Assignee: FUJITSU TEN Limited
    Inventors: Sumiaki Hashimoto, Natsuki Yokoyama
  • Patent number: 10450987
    Abstract: A method of operating a fuel injector of an internal combustion engine includes setting a value of a target fuel quantity to be injected by the fuel injector, initializing a value of a fuel quantity requested from the fuel injector to the value of the target fuel quantity, and correcting the value of the requested fuel quantity. A first learning cycle is performed to correct the value of the requested fuel quantity in which a difference between the target fuel quantity and the injected fuel quantity is calculated and added to the requested fuel quantity to provide a corrected value. The corrected value of the requested fuel quantity is used to determine a reference value of an energizing time that causes the fuel injector to inject a fuel quantity corresponding to the target fuel quantity. The fuel injector is operated based on the determined reference value of the energizing time.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: October 22, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Serena Tordin, Valerio Nuzzo, Paul Leonardo Claude, Angelo Cancellieri
  • Patent number: 10450996
    Abstract: During rapid warm-up operation, a CPU executes full lift injection processing, in which a nozzle needle reaches a maximum lift amount, in an intake stroke of each cylinder of a four-cylinder internal combustion engine, and then executes partial lift injection processing, in which the nozzle needle does not reach the maximum lift amount, in a compression stroke. On the other hand, during learning of injection characteristics of partial lift injection processing, the CPU executes full lift injection processing after executing partial lift injection processing, both of which are executed within a predetermined period in an intake stroke. The CPU learns the injection characteristics based on an inflection point in the temporal change of the induced electromotive force in a coil following the end of the partial lift injection processing.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: October 22, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Tomohiro Nakano
  • Patent number: 10393051
    Abstract: An internal-combustion-engine fuel injection control device which can accurately control a boosted voltage applied to a fuel injection valve during fuel injection and can control a variation in a fuel injection amount without increasing a size or a cost of the fuel injection control device even when a width of a fuel injection driving pulse to drive the fuel injection valve is small is provided. A fuel injection control device includes a boosting operation control unit configured to start a boosting operation at predetermined timing regardless of an amount of a detected voltage when the detected voltage is higher than a threshold voltage for starting boosting and is lower than a threshold voltage for stopping boosting.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: August 27, 2019
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Takao Fukuda, Hideyuki Sakamoto, Masahiro Toyohara, Yoshihisa Fujii, Osamu Mukaihara, Mitsuhiko Watanabe, Takeshi Konno
  • Patent number: 10385788
    Abstract: Fuel injection accuracy of gaseous fuel injectors is important for efficient engine operation. However, the performance of the injectors varies from part to part and across their lifetime, and when an injector is under performing according to its specification it is often unknown what is causing the problem. An apparatus for operating a gaseous fuel injector in an engine comprises a mass flow sensor that generates a signal representative of the mass flow rate of the gaseous fuel in a supply conduit in the engine.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: August 20, 2019
    Assignee: WESTPORT POWER INC.
    Inventors: Alan B. Welch, Colin W. Blair, Hamed Karimi Sharif
  • Patent number: 10385814
    Abstract: A method refreshes an injection law of a fuel injector to be tested in an injection system. The method comprises steps of establishing a desired fuel quantity for the fuel injector to be tested, performing at least one first measurement opening of the fuel injector to be tested in a test actuation time, determining a pressure drop in a common rail during the first measurement opening of the fuel injector to be tested, determining a first fuel quantity that is fed during the first measurement opening, calculating a second fuel quantity as a difference between the desired fuel quantity and the first fuel quantity, and performing a second completion opening of the fuel injector to be tested for feeding the second fuel quantity needed to reach the desired fuel quantity.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: August 20, 2019
    Assignee: Magneti Marelli S.p.A.
    Inventors: Stefano Sgatti, Marco Parotto, Gabriele Serra, Fabio Sensi
  • Patent number: 10352234
    Abstract: An engine control apparatus controls includes a cleaning mode to clean a deposit generated in an intake system of an engine. The engine control apparatus includes a generation source calculator, a deposit calculator, and a mode controller. The generation source calculator is configured to calculate an attached generation source amount on the basis of a temperature of the intake system. The attached generation source amount is an amount of a generation source, of the deposit, attached to the intake system. The deposit calculator is configured to calculate an attached deposit amount that is an amount of the deposit attached to the intake system, on the basis of the attached generation source amount and the temperature of the intake system. The mode controller is configured to execute the cleaning mode, when the attached deposit amount is greater than an execution threshold.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: July 16, 2019
    Assignee: SUBARU CORPORATION
    Inventor: Shota Tobe
  • Patent number: 10344715
    Abstract: A fuel vapor control system for a vehicle includes a fuel vapor canister that traps fuel vapor from a fuel tank of the vehicle. A purge valve opens to allow fuel vapor flow to an intake system of an engine and closes to prevent fuel vapor flow to the intake system of the engine. An electrical pump pumps fuel vapor from the fuel vapor canister to the purge valve. A pressure sensor measures a pressure within a conduit at a location between the electrical pump and the purge valve. A purge control module, based on the pressure measured using the pressure sensor at the location between the electrical pump and the purge valve, controls at least one of a speed of the electrical pump and opening of the purge valve.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: July 9, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Martino Casetti, Darrell W. Burleigh, Bruce A. Church
  • Patent number: 10344702
    Abstract: A system and methods for operating four in-line cylinders with common rail injection is described that comprises operating a first cylinder group without a compression and power stroke injection, but with an exhaust stroke injection while operating a second cylinder group with at least a compression stroke injection. In this way, the unburned fuel injected during the exhaust stroke enriches the exhaust-gas flow and further allows heating of the exhaust aftertreatment system. In one example provided, the first cylinder group is further configured to operate in an exhaust heating mode while also operating in a power generating mode.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: July 9, 2019
    Assignee: Ford Global Technologies, LLC
    Inventor: Yasser Mohamed sayed Yacoub
  • Patent number: 10337441
    Abstract: An engine control system of a vehicle includes a cylinder control module a first air per cylinder (APC) module, an adjustment module, and a fuel control module. The cylinder control module determines a target fraction of activated cylinders of an engine. The first APC module determines a first APC value based on an intake manifold pressure and an air temperature. The adjustment module determines an APC adjustment value based on the target fraction of activated cylinders. The first APC module also determines a second APC value based on the first APC value and the APC adjustment value. The fuel control module controls fuel injection based on the second APC value and a target air/fuel mixture.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: July 2, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Gregory P. Matthews
  • Patent number: 10294878
    Abstract: A turbocharger control system of a vehicle includes a trigger module that generates a trigger signal when a transmission of the vehicle is in one of (i) park and (ii) neutral. A wastegate target module, in response to the generation of the trigger signal, sets a target opening of a turbocharger wastegate to a predetermined opening and independently of a position of an accelerator pedal. The predetermined opening is greater than zero percent opening of the turbocharger wastegate. A wastegate actuator module actuates the turbocharger wastegate based on the target opening of the turbocharger wastegate.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: May 21, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Maqsood Rizwan Ali Khan, Mark R. Claywell, Scott M. Reilly
  • Patent number: 10267253
    Abstract: A booster circuit installed in a fuel injection device of an internal combustion engine, wherein malfunctions and characteristic changes of the booster circuit are detected, among which the detection distinguishes between decreases in capacity caused by deterioration or broken wires in a booster capacitor, and failures of a current monitor circuit, coil, externally connected fuel injection valve, and other components. The range of decrease in boost voltage when the fuel injection valve is opened is monitored, as is the range of increase per switch performed in order to restore the boost voltage. This makes it possible to detect malfunctions and characteristic changes of the booster circuit.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: April 23, 2019
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Atsushi Okonogi, Takao Fukuda
  • Patent number: 10232924
    Abstract: An engine control device includes an obtaining unit, a determining unit, and a control unit. The obtaining unit obtains model information on an engine based on a signal from a sensor, the sensor detecting a rotation of a camshaft unit. The determining unit determines whether the model information obtained by the obtaining unit matches stored model information. The control unit gives a warning to a user when the determining unit determines that the model information is not matched and controls the engine corresponding to the stored model information when the determining unit determines the model information is matched.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: March 19, 2019
    Assignee: SUZUKI MOTOR CORPORATION
    Inventors: Masaya Nishio, Tomohiko Miyaki
  • Patent number: 10227940
    Abstract: The objective of the present invention is to provide a control device for an engine that enables precise control of the equivalence ratio. The system from the fuel injection amount to the output from a LAF sensor is modeled as an injection amount-sensor output model by means of a model equation containing model parameters and a lag coefficient. The system from the equivalence ratio to the LAF sensor output is modeled as a port equivalence ratio-sensor output model by means of a model equation containing the lag coefficient. The control device is equipped with: a feedback-use identifier that successively identifies values for the model parameters; a LAF lag compensation-use identifier that successively identifies values for the lag coefficient; and a stoichiometric driving mode controller that determines the value of a fuel injection amount.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: March 12, 2019
    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: 10221801
    Abstract: A closed loop control system for a fuel pump based on characteristics of speed, pressure, and current. The pressure generated by the pump system is increased at the point in time when the pump system is working against a dead head system (i.e., coasting) to a level that a calibration valve is opened to a determined working point. By measuring the characteristic phase current as a function of the speed, the characteristic is able to be compared, with the pre-calibrated value of the hardware to perform an error compensation algorithm. The error compensation is overlaid with the standard pressure characteristic as a function of speed and phase current, and uses the pre-calibrated opening pressure value (i.e., the inflection point) of the calibration valve and/or in addition the change of the speed to the initial (first calibration), or to a sliding average therefrom.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: March 5, 2019
    Assignee: Continental Automotive Systems, Inc.
    Inventors: Andreas Sausner, Marc Völker
  • Patent number: 10215148
    Abstract: A method diagnoses a no-start condition in a powertrain having an engine and a starter system operable for starting the engine. The starter system includes a battery, solenoid relay, starter solenoid, and starter motor. The method includes recording starter data over a calibrated sampling duration in response to a requested start event when the solenoid relay is enabled, including a cranking voltage and engine speed. If no battery current sensor is used, the method derives a resistance ratio using an open-circuit voltage and a minimum cranking voltage of the battery. When such a sensor is used, the method derives a battery and starter resistance. A fault mode of the starter system is then identified via a controller using the starter data and either the resistance ratio or the battery and starter resistances. A control action executes that corresponds to the identified fault mode.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: February 26, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Shengbing Jiang, Xinyu Du
  • Patent number: 10180113
    Abstract: A control system for an internal combustion engine, which is capable of controlling fuel injection valves while causing valve-closing delay time periods, which occur with the valves actually mounted on the engine, to be reflected thereon, thereby making it possible to improve exhaust emission characteristics and fuel economy performance. The ECU of the control system performs initial value-specific control in fuel injection control and ignition timing control, such that initial value acquisition conditions are satisfied, so as to calculate the initial values of the valve-closing delay time periods when the initial value acquisition conditions are satisfied. When normal-time control is performed, the valve-opening time periods of the valves are calculated using the initial values of the valve-opening time periods, and the valves are controlled to be open over the valve-opening time periods.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: January 15, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Tatsuo Yamanaka, Susumu Nakajima, Naoki Yokoyama, Kenji Hirose, Hidekazu Hironobu, Seiichi Hosogai
  • Patent number: 10176913
    Abstract: An output driving circuit outputs an output current to a solenoid incorporated in a vehicle through an output terminal. A detection resistor connected between the output terminal and the output driving circuit. An amplification unit configured to output an analog detection signal generated by amplifying a voltage between both ends of the detection resistor. A current generation circuit configured to output a reference current. A reference resistor connected between the current generation circuit and a ground and configured to output a reference voltage according to the reference current. An A/D converter configured to convert the analog detection signal into a digital detection signal using the reference voltage as a reference. A control circuit configured to control the output current output from the output driving circuit according to the digital detection signal.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: January 8, 2019
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Satoshi Kondo, Kazuaki Kubo, Noriyuki Itano
  • Patent number: 10161307
    Abstract: Technology is provided for a bilateral engine control system for use on a multi-cylinder opposed piston engine. The system includes first and second sets of injectors, each set mountable on first and second sides of an engine. Each injector is in fluid communication with a corresponding cylinder of the engine. First and second engine control units are each connected to a respective set of injectors. First and second crankshaft speed sensors are connected to respective engine control units. The first engine control unit independently controls the first set of injectors based on a first speed signal and the second engine control unit independently controls the second set of injectors based on a second speed signal. The first engine control unit and the second engine control unit are configured to activate corresponding injectors of the first and second sets of injectors at substantially the same time.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: December 25, 2018
    Assignee: Fairbanks Morse LLC
    Inventors: Raymond Gosz, Omar Elkolaly
  • Patent number: 10156199
    Abstract: A drive control circuitry and an electronic control circuitry for controlling energization of a plurality of fuel injection valves. The plurality of fuel injection valves including a second fuel injection valve currently injecting fuel and a first fuel injection valve which, of the plurality of fuel injection valves, was last energized before the second fuel injection valve. When an energization start interval between a start of energization of the first fuel injection valve and a start of energization of the second fuel injection valve is longer than or equal to a peak reaching time of the first fuel injection valve, an energization time of the second fuel injection valve is extended as the energization start interval reduces. When the energization start interval is shorter than the peak reaching time, the energization time of the second fuel injection valve is reduced as the energization start interval reduces.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: December 18, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomohiro Nakano, Eiji Murase, Rihito Kaneko, Masanao Idogawa
  • Patent number: 10094319
    Abstract: Various methods are provided for operating a fuel pump. In one example, a method of operating a fuel pump comprises iteratively reducing an on-duration of a low pressure fuel pump pulse, until a peak outlet pressure of the fuel pump decreases from a peak outlet pressure corresponding to a previous pulse, to identify a minimum pulse duration, and applying a pulse having the minimum pulse duration to the fuel pump.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: October 9, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Joseph Norman Ulrey, Ross Dykstra Pursifull