Deceleration Condition Responsive Patents (Class 123/493)
  • Patent number: 10330040
    Abstract: Methods and systems are provided for learning fuel injector error for cylinder groups during a deceleration fuel shut-off (DFSO), where all cylinders of an engine are deactivated, sequentially firing each cylinder of a cylinder group, each cylinder fueled via consecutive first and second fuel pulses of differing fuel pulse width from an injector. Based on a lambda deviation between the first and second pulses, a fuel error for the injector and an air-fuel ratio imbalance for each cylinder is learned. Alternatively or additionally, a difference in crankshaft acceleration between the first and second pulses relative to the expected deviation may be used to learn torque error, and adjust fuel injector error and air-ratio imbalance for each cylinder.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: June 25, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Imad Hassan Makki, Adithya Pravarun Re Ranga, Hassene Jammoussi, Robert Roy Jentz, Michael Igor Kluzner, Stephen B. Smith
  • Patent number: 10060364
    Abstract: There is provided a controller for an internal combustion engine that includes an exhaust gas recirculation device. The exhaust gas recirculation device includes an exhaust gas recirculation passage, which connects a portion of the intake passage located at a downstream side of the throttle valve with an exhaust passage, a recirculation valve, which opens and closes the exhaust gas recirculation passage, and an actuator, which drives and opens the recirculation valve. The controller includes a processor configured to execute a fuel cut-off process that stops fuel injection from the fuel injection valve, to open the recirculation valve when the fuel cut-off process is executed, and to execute a pressure increase process that increases pressure of the portion of the intake passage at the downstream side of the throttle valve before opening the recirculation valve.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: August 28, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Tomohiro Nozaki
  • Patent number: 9990662
    Abstract: A computer-assisted inspection system provides computer architectures and software controlled algorithms to automatically provide vehicle inspections and repair recommendations including estimated repair time and cost of depression type damage such as dents. Features provided by a handheld wireless touchscreen based inspection device include flat car part picking, auto grading including seller grading, and automatic calculation of body and bumper dent repair parameters and directions.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: June 5, 2018
    Assignee: Manheim Investments, Inc.
    Inventors: William Henry Couch, Julie Elizabeth Warpool, Mark Humble, Marc Haegelin, Stephen Krise, Michael Chastain, Ronald St. Denis, Terry Mitchell
  • Patent number: 9754301
    Abstract: A system and method for monitoring a gas station can be used to prevent deceptive practices, such as a gas station that deceives a refueling amount or supplies inferior fuel. The gas station monitoring system includes: at least one telematics terminal that collects refueling information and transmits the refueling information to the outside; a credit card company server that transmits payment information of a gas station to the outside; a traffic information providing server that transmits traffic information including a position of the gas station to the outside; and a telematics server that determines the gas station to be a dishonest gas station that deceives a refueling amount by comparing information that is transmitted from the at least one telematics terminal and the payment information.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: September 5, 2017
    Assignee: Hyundai Motor Company
    Inventor: Sang Woo Park
  • Patent number: 9328672
    Abstract: In one aspect of the invention, an engine is operated in a skip cylinder engine braking mode. In the skip cylinder engine braking mode, selected working cycles of selected working chambers are deactivated. Other selected working cycles of the selected working chambers are operated in a braking mode. Accordingly, individual working chambers are sometimes deactivated and sometimes operated in the braking mode while the engine is operating in the skip cylinder engine braking mode. Various methods for cylinder control are described, which improve fuel economy, catalytic converter performance, and vehicle NVH characteristics.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: May 3, 2016
    Assignee: Tula Technology, Inc.
    Inventors: Louis J. Serrano, Steven E. Carlson, Joshua P. Switkes, Ronald D. Yuille
  • Patent number: 9222388
    Abstract: An exhaust system including a selective catalytic reduction (SCR) component and an oxidation catalyst component. The exhaust system also includes an exhaust treatment fluid injection system for dispersing an exhaust treatment fluid into an exhaust stream at a location adjacent either the SCR component or the oxidation catalyst component, wherein the exhaust treatment fluid injection device includes a common rail that provides the exhaust treatment fluid under pressure to a plurality of injectors that dose the exhaust treatment fluid into the exhaust stream. The exhaust treatment fluid injection device also includes a return rail for returning unused exhaust treatment fluid to the fluid source. Each of the common rail and return rail can be configured to allow drainage of the exhaust treatment fluid as a freeze-protection feature.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: December 29, 2015
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: Dana Kregling, Michael Golin, Guanyu Zheng, Alan Brockman, Adam J. Kotrba, Timothy P. Gardner, Andrey Factor
  • Patent number: 9102213
    Abstract: A vehicle air conditioner control system has an air conditioning device for performing a refrigerating cycle, having a compressor that intakes, compresses, and discharges a refrigerant, a condenser that condenses the refrigerant discharged from the compressor, an expansion valve that depressurizes the refrigerant condensed by the condenser, an evaporator that performs heat exchange between open air and the refrigerant to vaporize the refrigerant, a compressor ON/OFF control device that controls a running rate of the compressor by alternating between an ON state and an OFF state, a vehicle deceleration fuel cut-off executing device that performs cut-off fuel supply during vehicle deceleration, and a fuel supply recovery executing device that cancels fuel cut-off and recovers fuel supply during vehicle deceleration fuel cut-off period based on a demand to turn on the compressor.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: August 11, 2015
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yugo Motegi, Tadashi Iwamoto, Takashi Watanabe, Tetsuya Fuke, Tetsuya Furumaya
  • Patent number: 8989991
    Abstract: Disclosed are an apparatus and a method for processing a fuel cut starting or releasing the fuel cut using a tilt angle of a vehicle or a clearance angle of an acceleration pedal. An exemplary embodiment of the present invention can reflect driving habit or acceleration intention of a driver by interlocking a clearance angle of the acceleration pedal in addition to starting or releasing a fuel cut according to a tilt angle of a vehicle, thereby increasing fuel efficiency driving or convenience of driving. The exemplary embodiment of the present invention can improve stability of driving by applying a haptic technology.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: March 24, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Young Back Kim, Hae Dong Lee, Kee Koo Kwon, Gwang Su Kim
  • Patent number: 8851049
    Abstract: In a vehicle in which an output of an engine is transmitted to a driving wheel through a transmission, an engine control device stops fuel injection of the engine, when engine rotational speed is above a preset specific fuel cut-off rotational speed while the vehicle is coasting; and restarts the fuel injection, when the engine rotational speed falls below a recovery rotational speed while the fuel injection is stopped, wherein the recovery rotational speed is below the specific fuel cut-off rotational speed. When determining that an operating state allows the stop and restart of fuel injection to be repeated, the engine control device sets a hunting-preventing fuel cut-off rotational speed based on an input shaft rotational speed of the transmission, wherein the hunting-preventing fuel cut-off rotational speed replaces the specific fuel cut-off rotational speed.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: October 7, 2014
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Ryouichi Ootaki, Masahiro Iriyama
  • Patent number: 8620561
    Abstract: A control for an internal combustion engine having a fuel injection valve for directly injecting fuel to a combustion chamber of the engine, an ignition device for burning an air-fuel mixture containing the fuel injected from the fuel injection valve, and a variable cylinder management mechanism that is capable of changing the number of operating cylinders is provided. The control includes making a transition to an operating mode where the number of operating cylinders is decreased through the variable cylinder management mechanism. It is predicted based on an operating condition of the engine that an air-fuel ratio of an exhaust atmosphere of the engine becomes lean due to a stop of the fuel injection into one or more cylinders to be halted by the transition.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: December 31, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Akira Murakami, Taro Endo, Takaaki Fukusako
  • Patent number: 8584653
    Abstract: An internal combustion engine is provided with a fuel injector which injects fuel into an intake port and exhaust variable valve timing mechanism which changes a valve timing of an exhaust valve. A control device executes early exhaust valve closing control which advances a closing timing of an exhaust valve when conditions for executing early exhaust valve closing control stand. The control device detects an output torque output by an engine body. At the time of deceleration of the engine, even when the condition for executing early exhaust valve closing control stands, execution of early exhaust valve closing control is prohibited when it is predicted that the output torque will become smaller than the limit torque. Thus, due to execution of the early exhaust valve closing control, a large torque fluctuation is prevented from occurring at the time of deceleration of the engine.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: November 19, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Makoto Tomimatsu, Koichi Hoshi, Shogo Suda
  • Patent number: 8515652
    Abstract: A control device for an internal combustion engine is provided. The control device includes means which controls fuel injection by a fuel injection device, and means which controls the throttle. The fuel injection control means sequentially restarts fuel injection for each cylinder in accordance with an ignition sequence among cylinders when cancellation conditions of fuel cut are satisfied during implementation of the fuel cut. Meanwhile, the throttle control means firstly controls the throttle to a closing side when the cancellation conditions of fuel cut are satisfied. The throttle is controlled to the closing side, whereby the air amount in the intake pipe is decreased, and the air amount in a cylinder which is the basis of calculation of a fuel injection amount is also decreased.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: August 20, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shinichi Soejima, Naoto Kato, Kaoru Otsuka, Kiyonori Takahashi, Hiroyuki Tanaka, Ryutaro Moriguchi
  • Patent number: 8430082
    Abstract: In order to determine the quality of fuel in an auto-igniting internal combustion engine, a defined fuel amount is injected at defined crank shaft angles during a deceleration fuel shut-off phase of the internal combustion engine. The thereby created crankshaft torque contribution is detected and an absolute or relative measure is determined for the fuel quality thereof.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: April 30, 2013
    Assignee: Continental Automotive GmbH
    Inventors: Ralf Böhnig, Michael Hardt
  • Patent number: 8423265
    Abstract: A control system of an internal combustion engine in which a first fuel of ammonia and a second fuel which is easier to burn than ammonia are used as fuels. An ammonia ratio is usually set to a reference ammonia ratio which is determined in advance in accordance with an operating state of an engine. At the time when feed of the fuel is restarted after suspension of feed of the fuel at the time of deceleration, the ammonia ratio is temporarily made lower than the reference ammonia ratio in accordance with the operating state of the engine.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: April 16, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Koji Aso, Takahiko Fujiwara, Hiroshi Tanaka
  • Patent number: 8316819
    Abstract: There is provided, in one aspect of the present description, a method of controlling a spark ignited internal combustion engine having a fuel injector which injects fuel directly into its combustion chamber. The method comprises stopping the fuel injection if a desired torque for the engine is a predetermined torque or less and a speed of the engine is a predetermined speed or greater. The method comprises resuming the fuel injection by injecting a first amount of fuel directly into the combustion chamber during a negative pressure period and injecting a second amount of the fuel into the combustion chamber during an intake period. The method further includes resuming the fuel injection by injecting a third amount of the fuel directly into the combustion chamber during the negative pressure period and injecting a fourth amount of the fuel into the combustion chamber during the intake period.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: November 27, 2012
    Assignee: Mazda Motor Corporation
    Inventors: Masahisa Yamakawa, Shinichi Sugihara, Naohiro Yamaguchi, Keiji Araki
  • Patent number: 8321121
    Abstract: A fuel injection control apparatus is provided with a supply control section, a stop control section, a timing estimating section and a torque recovery control section. The supply control section controls fuel supplied to an engine based on a detected prescribed vehicle running state. The stop control section stops supplying fuel upon detecting a first prescribed vehicle running state. The timing estimating section estimates a timing at which a drive train transmitting a drive force from the engine to a wheel will change from a non-drive state in which the engine rotates due to a force from the wheel to a drive state in which the wheel rotates due to a drive force of the engine. The torque recovery control section resumes supplying fuel upon detecting a second prescribed vehicle running state and stops resumption of fuel being supplied for a prescribed amount of time based on the timing.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: November 27, 2012
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Norihiro Santou, Taiki Tsukada
  • Patent number: 8306723
    Abstract: A direct-injection, compression-ignition internal combustion engine control adapts nominal minimum pulsewidth parameters controlling the fuel injectors to minimize pilot fuel delivered to the cylinders required to initiate a preliminary combustion event.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: November 6, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Ibrahim Haskara, Yue-Yun Wang, Chol-Bum M Kweon, Zhiping Liu, Frederic Anton Matekunas, Paul Anthony Battiston
  • Patent number: 8291890
    Abstract: The invention is directed to the improvement of starting performance in an engine rotational speed region that exceeds an idle rotation region without affecting normal traveling performance. At the time when a vehicle starts moving, when in an electronic control unit, the rotational speed of an engine is in a predetermined range that exceeds an idle rotation region and the engine rotational speed decreases, the electronic control unit adds a corrected fuel injection amount corresponding to the rate of decrease to a target fuel injection amount to create a new target fuel injection amount. When the rotational speed of the engine increases, the electronic control unit subtracts a corrected fuel injection amount corresponding to the rate of increase of the engine rotational speed from a target fuel injection amount to create a new target fuel injection amount. Control of the output of the engine is performed by the electronic control unit.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: October 23, 2012
    Assignee: Bosch Corporation
    Inventors: Osamu Mori, Takeshi Asami
  • Patent number: 8272367
    Abstract: A control system for an internal combustion engine for driving a vehicle, which controls an output torque of the engine, is provided. In this control system, a rapid change in a demand torque of the engine is detected, and a feedforward correction amount is generated during a correction period which is substantially equal to a resonance period of a powertrain of the vehicle, from a time when the rapid change in the demand torque is detected. An output torque control amount of the engine is corrected with the feedforward correction amount. A torque change amount integrated value is calculated by integrating an amount of change in the demand torque, and the feedforward correction amount is generated according to the torque change amount integrated value.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: September 25, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Mahito Shikama, Ryuji Kohno, Eisei Yamazaki, Hidekazu Hironobu
  • Patent number: 8229632
    Abstract: An engine control system for preventing automatic increasing of an engine speed above a threshold engine speed when increasing engine speed toward an elevated transmission mainshaft speed during a transmission downshift includes a downshift sensor for detecting a transmission downshift in a manual transmission and an electronic control unit (ECU) operatively connected to the downshift sensor for receiving a downshift signal therefrom indicative of the transmission downshift. The ECU automatically increases the engine speed toward a transmission mainshaft speed when the downshift sensor detects a transmission downshift. The ECU limits the increasing of the engine speed to an engine target speed that is below the threshold engine speed.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: July 24, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Nathaniel Ellis, Hirokazu Toyoshima
  • Patent number: 8224558
    Abstract: An internal combustion engine control apparatus includes a fuel supplying mechanism supplying fuel to the internal combustion engine; an exhaust gas recirculating mechanism recirculating exhaust gas of the internal combustion engine to an intake side of the internal combustion engine; a flow adjuster selectively increasing and decreasing a strength of flow of the supplied fuel and the recirculated exhaust gas in a cylinder of the internal combustion engine; a stop controller controlling the fuel supplying mechanism to stop the supply of fuel and controlling the exhaust gas recirculating mechanism to stop the recirculation of exhaust gas, when the internal combustion engine is operated in a predetermined deceleration mode; and in-cylinder flow controller controlling the flow adjuster to increase the strength of the flow when the control to stop the supply of fuel is cancelled.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: July 17, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuuichi Katou, Tomohiro Shinagawa, Shingo Korenaga
  • Patent number: 8219300
    Abstract: An engine control system and method for controlling engine air flow during a deceleration fuel cut includes an internal combustion engine, an anti-lock braking system (ABS), and an electronic control unit (ECU) that controls the engine. The ECU establishes a desired air flow rate for the internal combustion engine, which is taken from an ABS failed condition look-up table when determined that the ABS has failed while the engine is in a deceleration fuel cut mode, and otherwise is taken from a normal condition look-up table.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: July 10, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Dan Nagashima, Paul DeHart, Hirokazu Toyoshima, Takahide Mizuno, Yoshiharu Saitou, Yutaka Ishikawa, Akio Muto
  • Patent number: 8165774
    Abstract: A vehicle control system includes a sensor that generates a vehicle speed signal. A cruise control system generates a cruise control signal to maintain a vehicle at a target speed. A control module compares the vehicle speed signal to the target speed signal. The control module calculates different cruise control gains to delay changes in throttle position of the cruise control system when the vehicle speed signal is greater than the target speed.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: April 24, 2012
    Inventors: Lan Wang, Wenbo Wang, Zhong Wang
  • Patent number: 8140242
    Abstract: Systems and methods involving multiplexed engine control signals are provided. In this regard, a representative engine control system for a gas turbine engine includes: a signal relay device operative to receive multiplexed signals from an engine electronic control (EEC), demultiplex the signals, and provide demultiplexed signals to corresponding ones of multiple control devices of the engine.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: March 20, 2012
    Assignee: United Technologies Corp.
    Inventor: Thomas G. Cloft
  • Publication number: 20110192380
    Abstract: An internal combustion engine is provided with a fuel injector which injects fuel into an intake port and exhaust variable valve timing mechanism which changes a valve timing of an exhaust valve. A control device executes early exhaust valve closing control which advances a closing timing of an exhaust valve when conditions for executing early exhaust valve closing control stand. The control device includes a torque detecting means which detects an output torque output by an engine body. At the time of deceleration of the engine, even when the condition for executing early exhaust valve closing control stands, execution of early exhaust valve closing control is prohibited when it is predicted that the output torque will become smaller than the limit torque. Thus, due to execution of the early exhaust valve closing control, a large torque fluctuation is prevented from occurring at the time of deceleration of the engine.
    Type: Application
    Filed: October 20, 2008
    Publication date: August 11, 2011
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Makoto Tomimatsu, Koichi Hoshi, Shogo Suda
  • Patent number: 7966810
    Abstract: It is suppressed that nanoparticles generated in an internal combustion engine are discharged into the atmosphere. In a cylinder or an exhaust system of the internal combustion engine, microparticles having a particle diameter larger than that of the nanoparticles are generated, and the nanoparticles generated in the internal combustion engine are adsorbed by the microparticles, thereby increasing the diameter of the nanoparticles. The microparticles can be generated in the cylinder as the soot, for example. Additionally, by providing a carbon microparticle generation device in the exhaust system, the microparticles can be generated, too. By making the nanoparticles adsorbed by the microparticles and increasing the diameter of the nanoparticles, discharging of the nanoparticles can be suppressed.
    Type: Grant
    Filed: March 17, 2006
    Date of Patent: June 28, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroshi Ito, Kotaro Hayashi, Tetsuya Yamashita, Shinichi Takeshima
  • Publication number: 20110120422
    Abstract: A universal energy-saving system for multiple working conditions includes an electronic control unit and an actuator. The electronic control unit is adapted to sample, process running, information of a vehicle and an instruction of a driver, control on and off of a fuel injector, and adapted to drive the actuator to lock or release an exhaust valve after opening the exhaust valve, so as to realize working under multiple working conditions. A, normal working condition, the performance of the original vehicle does not change; B, racing and gliding with reduced pressure, no fuel is used and there is no emission; C, working with reduced cylinders when waiting red light and cruising, non-working cylinders race with reduced pressure and no fuel. The features include: fuel of the engine is cut off when gliding, the exhaust valve is constantly half open, the engine races with reduced pressure; the inlet valve opens and closes normally, an inlet manifold is vacuum, direction and braking are not affected.
    Type: Application
    Filed: January 31, 2011
    Publication date: May 26, 2011
    Inventor: He HOU
  • Publication number: 20110098907
    Abstract: In a vehicle in which an output of an engine is transmitted to a driving wheel through a transmission, an engine control device stops fuel injection of the engine, when engine rotational speed is above a preset specific fuel cut-off rotational speed while the vehicle is coasting; and restarts the fuel injection, when the engine rotational speed falls below a recovery rotational speed while the fuel injection is stopped, wherein the recovery rotational speed is below the specific fuel cut-off rotational speed. When determining that an operating state allows the stop and restart of fuel injection to be repeated, the engine control device sets a hunting-preventing fuel cut-off rotational speed based on an input shaft rotational speed of the transmission, wherein the hunting-preventing fuel cut-off rotational speed replaces the specific fuel cut-off rotational speed.
    Type: Application
    Filed: April 28, 2009
    Publication date: April 28, 2011
    Inventors: Ryouichi Ootaki, Masahiro Iriyama
  • Publication number: 20100262351
    Abstract: An engine control system and method for controlling engine air flow during a deceleration fuel cut includes an internal combustion engine, an anti-lock braking system (ABS), and an electronic control unit (ECU) that controls the engine. The ECU establishes a desired air flow rate for the internal combustion engine, which is taken from an ABS failed condition look-up table when determined that the ABS has failed while the engine is in a deceleration fuel cut mode, and otherwise is taken from a normal condition look-up table.
    Type: Application
    Filed: April 10, 2009
    Publication date: October 14, 2010
    Inventors: Dan Nagashima, Paul DeHart, Hirokazu Toyoshima, Takahide Mizuno, Yoshiharu Saitou, Yutaka Ishikawa, Akio Muto
  • Patent number: 7757665
    Abstract: A method of regulating a throttle opening of an engine in a hybrid electric vehicle system includes initiating a fuel-cut off operating mode of the engine, monitoring an engine speed during said fuel cut-off operating mode and regulating the throttle opening based on the engine speed during the fuel-cut off mode to maintain a manifold absolute pressure (MAP) of the engine above a threshold MAP.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: July 20, 2010
    Inventors: Goro Tamai, James L. Worthing
  • Publication number: 20100139623
    Abstract: It is an object to improve starting performance in an engine rotational speed region that exceeds an idle rotation region without affecting normal traveling performance. At the time when a vehicle starts moving, when in an electronic control unit 2, the rotational speed of an engine 1 is in a predetermined range that exceeds an idle rotation region and the engine rotational speed decreases, the electronic control unit 2 adds a corrected fuel injection amount corresponding to the rate of decrease to a target fuel injection amount to create a new target fuel injection amount (S202 to S208), and when the rotational speed of the engine 1 increases, the electronic control unit subtracts a corrected fuel injection amount corresponding to the rate of increase of the engine rotational speed from a target fuel injection amount to create a new target fuel injection amount (S212 to S218), whereby control of the output of the engine 1 is performed by the electronic control unit 2.
    Type: Application
    Filed: April 23, 2008
    Publication date: June 10, 2010
    Inventors: Osamu Mori, Takeshi Asami
  • Patent number: 7558664
    Abstract: To enable smooth, highly accurate deceleration in various usage conditions of an outboard motor and realize stabilized engine speed after deceleration, a fuel controller for controlling the amount of fuel fed to an engine of an outboard motor mounted on a boat includes a deceleration determining section arranged to determine deceleration of the boat, an engine speed detecting section arranged to detect the engine speed of the engine, an engine load detecting section arranged to detect the load on the engine, and a controller arranged to control the amount of fuel fed to the engine when the boat is in deceleration according to the detected engine speed and engine load.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: July 7, 2009
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Takaaki Banba, Yoshikazu Nakayasu
  • Patent number: 7475677
    Abstract: A method and apparatus, and vehicle on which the apparatus is mounted, for controlling combustion of a fuel-injection, internal-combustion engine with two or more cylinders are provided. The method includes determining a deceleration condition of a vehicle being driven by the engine, and thinning the fuel-injection of the engine when the deceleration condition is determined.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: January 13, 2009
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Yoshinobu Mori, Takeshi Ikeda, Takuya Sakamoto
  • Patent number: 7441541
    Abstract: Fuel injection is controlled to cause one of multiple cylinders to receive fuel injection and to stop in a predetermined range over an intake stroke to a compression stroke in an operation stop of the internal combustion engine. At the time of stopping the engine, fuel injection is allowed only while the observed rotation speed of the internal combustion engine is between a preset start rotation speed and a preset stop rotation speed, and at least one of the start rotation speed and the stop rotation speed are regulated based on a detected rotation stop position of a crankshaft in the operation stop of the internal combustion engine and a state of fuel injection in the cylinder stopping in the predetermined range.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: October 28, 2008
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Makoto Nakamura, Mitsuhiro Tabata
  • Patent number: 7441547
    Abstract: A method of feeding fuel to an engine, comprising the steps of determining whether or not the engine is decelerating based on a time-lapse change rate of an engine speed of the engine, and reducing an amount of the fuel to be fed to air taken into the engine from outside to less than a reference amount preset according to the engine speed when it is determined that the engine is decelerating.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: October 28, 2008
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Naoki Kawamura, Satoru Watabe
  • Publication number: 20080173278
    Abstract: Fuel management system for operation of a spark ignition gasoline engine. The system includes a gasoline engine powering the vehicle and a source of gasoline for introduction into the engine. A source of an anti-knock fuel such as ethanol is provided. An injector directly injects the anti-knock fuel into a cylinder of the engine and the control system shuts down the engine by stopping gasoline and anti-knock agent flow into the engine during vehicle deceleration and idling and restarts the engine upon driver demand. Direct ethanol injection and engine shutdown results in efficiencies similar to those of full hybrid vehicles.
    Type: Application
    Filed: March 8, 2007
    Publication date: July 24, 2008
    Applicant: ETHANOL BOOSTING SYSTEMS LLC
    Inventors: Leslie Bromberg, Paul N. Blumberg, Daniel R. Cohn, John Heywood
  • Patent number: 7395808
    Abstract: There is provided a control system for controlling an internal combustion engine with an exhaust system provided with a catalyst, comprising a fuel cut means for stopping the supply of fuel to the internal combustion engine when the vehicle in which the internal combustion engine is mounted is in a decelerating state, the control system of an internal combustion engine characterized in that, in the case that the fuel cut is executed, when the speed SPD of the vehicle is higher than a predetermined first vehicle speed Sh, the intake air amount Ga of the internal combustion engine is made smaller than the intake air amount Gai of when the internal combustion engine is in the idling state (step 120), while when the speed SPD is the first vehicle speed Sh or less, the intake air amount Ga is made larger than the intake air amount Gai of when the internal combustion engine is in the idling state (step 130).
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: July 8, 2008
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Mamoru Yoshioka
  • Publication number: 20080154480
    Abstract: To enable smooth, highly accurate deceleration in various usage conditions of an outboard motor and realize stabilized engine speed after deceleration, a fuel controller for controlling the amount of fuel fed to an engine of an outboard motor mounted on a boat includes a deceleration determining section arranged to determine deceleration of the boat, an engine speed detecting section arranged to detect the engine speed of the engine, an engine load detecting section arranged to detect the load on the engine, and a controller arranged to control the amount of fuel fed to the engine when the boat is in deceleration according to the detected engine speed and engine load.
    Type: Application
    Filed: December 11, 2007
    Publication date: June 26, 2008
    Applicant: YAMAHA MARINE KABUSHIKI KAISHA
    Inventors: Takaaki BANBA, Yoshikazu NAKAYASU
  • Patent number: 7383813
    Abstract: The problem during overrun fuel cut-off operations, i.e. cut-off of fuel injection during trailing throttle conditions of the vehicle, is that the transition entails an undue torque jump, resulting in the smooth operation of the engine and the driving comfort of the passengers of the vehicle being affected. The aim of the invention is to reduce the torque jump. Said aim is achieved by injecting fuel into a cylinder of the Otto engine in a multiple injection process, at least a partial quantity of the fuel that is to be injected being injected during the compression phase, whereby the quantity of air that is taken in advantageously decreases because no internal cooling takes place while the efficiency is advantageously reduced due to the lesser degree of swirling, resulting in lower torque. Overall, torque (DM) is reduced to a significantly greater extent than by merely adjusting the spark angle (ZW) while smooth operation of the Otto engine is not affected.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: June 10, 2008
    Assignee: Siemens Aktiengesellschaft
    Inventors: Frank Weiss, Hong Zhang
  • Patent number: 7377256
    Abstract: A method for operating a drive unit, in which, given the use of a vehicle-speed controller, the actual speed is prevented from exceeding the setpoint speed too significantly. In the method, a setpoint value for an output variable of the drive unit is predetermined. An overrun fuel cutoff of the drive unit is enabled as soon as the setpoint value for the output variable falls below a characteristic value for the overrun fuel cutoff.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: May 27, 2008
    Assignee: Robert Bosch GmbH
    Inventor: Michael Glora
  • Publication number: 20080115760
    Abstract: Fuel injection is controlled to cause one of multiple cylinders to receive fuel injection and to stop in a predetermined range over an intake stroke to a compression stroke in an operation stop of the internal combustion engine. At the time of stopping the engine, fuel injection is allowed only while the observed rotation speed of the internal combustion engine is between a preset start rotation speed and a preset stop rotation speed, and at least one of the start rotation speed and the stop rotation speed are regulated based on a detected rotation stop position of a crankshaft in the operation stop of the internal combustion engine and a state of fuel injection in the cylinder stopping in the predetermined range.
    Type: Application
    Filed: November 15, 2005
    Publication date: May 22, 2008
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Makoto Nakamura, Mitsuhiro Tabata
  • Patent number: 7328686
    Abstract: Engine cylinder reactivation from a fuel-cut state is controlled based on a calculated future engine speed and a minimum allowable engine speed. The future engine speed is calculated based on the current rate of change of engine speed and a duration required to reactivate an engine cylinder. The duration can be in the time domain, or engine event domain, for example.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: February 12, 2008
    Assignee: Ford Global Technologies LLC
    Inventor: Michael J. Cullen
  • Patent number: 7296561
    Abstract: In order to prevent the generation of surge noise or other abnormal phenomena during deceleration of a vehicle, the present engine control apparatus comprises a turbo-supercharger driven by exhaust energy of the engine, at least one of an NOx trap catalyzer and a DPF mounted in the exhaust path of the engine for purifying the exhaust, an EGR path interconnecting the exhaust path and the inlet path of the engine, an EGR valve for adjusting the cross-section of the duct of the EGR path, means for detecting deceleration, and a fuel cutoff control means that, if predetermined conditions are satisfied, effects fuel cutoff control to reduces the rate of fuel injection, wherein the EGR valve is closed during the period of vehicle deceleration.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: November 20, 2007
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takashi Shirakawa, Yasutaka Ishibashi, Hikari Todoroki
  • Publication number: 20070250255
    Abstract: The invention comprises a method to determine a position of a piston in a cylinder of an engine during ongoing operation, comprising adapting pressure sensing devices to monitor in-cylinder pressure, and, operating the engine. In-cylinder pressure is monitored along with a corresponding engine crank position. The engine is operated in a motoring mode and in a cylinder firing mode, and a plurality of instantaneous in-cylinder pressure states are determined during compression and expansion strokes. Pressure ratios are determined based upon the instantaneous in-cylinder pressure states, which are used to determine an engine crank angle and compression ratio error and, adjust the monitored engine crank position based upon the crank angle error and readjust engine operation according to these sensed errors.
    Type: Application
    Filed: April 24, 2007
    Publication date: October 25, 2007
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Frederic Anton Matekunas, Paul Anthony Battiston, Patrick G. Szymkowicz, Anupam Gangopadhyay
  • Patent number: 7263977
    Abstract: A method is provided for operating an internal combustion engine 10 in overrun condition, which method includes the steps of: release of a monitoring of a control signal for a power actuator of the internal combustion engine when predetermined release conditions have been satisfied, which include the exceeding of a release rotary speed of the internal combustion engine; after the release, comparing a control signal for the power actuator of the internal combustion engine to a threshold value, and triggering an error response if the control signal exceeds the threshold value. The method provides that the release speed is varied as a function of the intervention of an idling speed control in the formation of the control signal. Also provided is a control unit which controls such a method.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: September 4, 2007
    Assignee: Robert Bosch GmbH
    Inventors: Volker Pitzal, Gerit von Schwertfuehrer
  • Patent number: 7140348
    Abstract: A fuel injection valve control to correctingly increase the fuel amount appropriately for realizing a favorable acceleration performance at the time of accelerating after a throttle full closure period is finished.
    Type: Grant
    Filed: February 1, 2005
    Date of Patent: November 28, 2006
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yoshiaki Takeuchi, Kenichi Machida, Hideo Nihei
  • Patent number: 7117853
    Abstract: An electronic control unit compulsorily stops supply of a fuel injection quantity, which is calculated based on various parameters including a throttle opening degree, performed by an injector in accordance with a crank angle signal if a series of operations, of rapidly opening a throttle valve from a certain throttle opening degree and then rapidly closing the throttle valve, occurs within a predetermined time in one combustion cycle of an internal combustion engine after completion of stroke determination. The electronic control unit removes the compulsory stoppage of the supply of the fuel injection quantity if drawing of an air intake quantity overlaps with at least one-third of an intake stroke in one combustion cycle of the engine.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: October 10, 2006
    Assignee: Denso Corporation
    Inventor: Yasuhiro Okochi
  • Patent number: 7093587
    Abstract: A method and a device for controlling the drive unit of a vehicle make possible an effective kinesthetic signaling of an event. Based on a detection of the event, an output variable of the drive unit is changed in a stepwise manner, as a function of whether the vehicle is in an overrun state or an acceleration state.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: August 22, 2006
    Assignee: Robert Bosch GMBH
    Inventors: Michael Glora, Manfred Weiffen
  • Patent number: 7089103
    Abstract: In a system for controlling an internal combustion engine having a plurality of cylinders and connected to the automatic transmission and mounted on a vehicle and the operation of the engine is switched between full-cylinder operation during which all of the cylinders are operative and cutoff-cylinder operation during which some of the cylinders are non-operative, based on at least the load of the engine, a gradient of road on which the vehicle runs is estimated and the cutoff-cylinder operation is prohibited when the estimated gradient is equal to or greater than a threshold value. With this, it becomes possible to generate sufficient deceleration, when the vehicle runs a downhill during cutoff-cylinder operation, while ensuring to prevent the operator to feel excessive acceleration.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: August 8, 2006
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takehiro Katakura, Kenji Nakajima, Hiroshi Terayama, Shinichi Nishio, Yoshiyuki Nagayama, Hiroyuki Kushiyama
  • Patent number: 7086387
    Abstract: The invention provides a control apparatus of a cylinder injection of fuel type internal combustion engine executing a dilute combustion, which can satisfy a requirement of rapidly changing an engine torque while restricting a deterioration of a driving property and an exhaust gas as much as possible. In a control apparatus of a multicylinder engine executing a dilute combustion, in the case that a requirement of reducing and changing an engine torque of the internal combustion engine is applied, the control apparatus executes a fuel cut of a predetermined number of cylinders, and controls so that a torque of operating cylinders except the cylinders executing the fuel cut becomes the required engine torque.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: August 8, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Takashi Okamoto, Toshio Hori