Electronic Control Patents (Class 123/406.12)
  • Patent number: 10550778
    Abstract: Provided is a control device for an internal combustion engine, which can ensure a stable combustion state of the internal combustion engine even under a high-humidity environment condition, thereby improving the merchantability. The control device for the internal combustion engine includes an ECU (electronic control unit). The ECU calculates a basic target EGR amount according to an operating state of the internal combustion engine, calculates a water vapor amount in air drawn into an intake passage of the internal combustion engine, calculates an EGR conversion amount by using the water vapor amount, calculates a target EGR amount by subtracting the EGR conversion amount from the basic target EGR amount, and controls internal EGR and external EGR of the internal combustion engine by using the target EGR amount.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: February 4, 2020
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masaki Ueno, Noritaka Kimura, Kosuke Ihara, Yuto Katori, Yosuke Yamada, Hajime Uto
  • Patent number: 10523142
    Abstract: A motor control apparatus is an apparatus that controls a motor that drives a machine apparatus that moves a subject to be moved, and includes a resolution conversion unit that converts, on the basis of a ratio of resolution of a first detector that detects a position of an object and resolution of a second detector that detects a position of the object, a detection signal that indicates the position of the object that is detected by the second detector to a signal of the resolution of the first detector. The motor control apparatus further includes a current control unit that controls a voltage to be applied to the motor on the basis of a command signal that specifies a destination position of the subject to be moved and the signal obtained by the conversion performed by the resolution conversion unit on the detection signal.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: December 31, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Akira Tanabe, Munehiro Murata
  • Patent number: 10233852
    Abstract: Systems and methods for activating and deactivating cylinders of an engine that may activate and deactivate one cylinder independent of other cylinders are presented. In one example, an engine cylinder firing fraction and a remainder value that is based on the engine cylinder firing fraction are a basis for activating and deactivating engine cylinders. The systems and methods also provide for transitioning between different cylinder firing fractions.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: March 19, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Amey Y. Karnik, Stephen Lee Cooper, Adam Nathan Banker, Michael Howard Shelby, John Eric Rollinger, Adam J. Richards
  • Patent number: 10221790
    Abstract: A controlling apparatus for an engine, includes: an auto-ignition index calculating unit that is configured to calculate, based on a cylinder temperature and a cylinder pressure in a combustion chamber, an auto-ignition index which indicates easiness of occurrence of auto-ignition of fuel at a crank angle before an ignition timing in a compression stroke; a first correction coefficient calculating unit that is configured to calculate, based on an amount of fuel adhering to a wall surface of the combustion chamber at the crank angle, a wall-adhering fuel correction coefficient for correcting the auto-ignition index; and a low-speed pre-ignition predicting unit that is configured to predict, based on the auto-ignition index and the wall-adhering fuel correction coefficient, occurrence of low-speed pre-ignition.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: March 5, 2019
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Kensuke Yanagawa, Nozomu Nakamura, Fumiaki Hiraishi, Masayuki Yamashita
  • Patent number: 10167839
    Abstract: The ignition control device includes a spark plug that includes a first electrode and a second electrode disposed so as to oppose each other, an ignition coil that includes a plurality of sets of a primary coil and a secondary coil, generates a high voltage in the secondary coil by energizing or interrupting a primary current supplied to the primary coil, and applies the generated high voltage to the first electrode, and a control unit that, in a case where a plurality of the primary coils are driven during a single ignition process, temporarily stops energization of a primary current supplied to a second primary coil when a primary current supplied to a first primary coil is interrupted, and re-energizes the primary current supplied to the second primary coil following the elapse of an energization stoppage period.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: January 1, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takahiko Inada, Takahiro Enomoto
  • Patent number: 10072595
    Abstract: A method for ascertaining a mean value of a gas-mass flow in a combustion engine. The method includes measuring a gas-mass flow impinged upon by a pulsation, smoothing a sensor signal obtained by the measurement, applying a correction quantity to the smoothed sensor signal in order to obtain the mean value of the gas-mass flow, and ascertaining the correction quantity as a function of the operating state of the combustion engine with the aid of a data-based, non-parametric function model.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: September 11, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventor: Thomas Schwartzkopff
  • Patent number: 10052933
    Abstract: A system controls a drivability mode of a hybrid motor vehicle provided with a heat engine and with an electric engine. The system includes a first measurer for measuring running conditions of the vehicle, a second measurer for measuring a level of charge of a battery of the vehicle, a first controller for controlling the heat engine, a second controller for controlling the electric engine, a computer capable of emitting a first activation signal for the heat engine, and a second activation signal for the electric engine, as a function of the running conditions and of the level of charge, and a third measurer for measuring at least one characteristic relating to an operation of a heating system of the vehicle. The first activation signal and the second activation signal are generated on the basis of the characteristic relating to the operation of the heating system.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: August 21, 2018
    Assignee: RENAULT s.a.s.
    Inventors: Jean-Marie L'Huillier, Alain Alexandre
  • Patent number: 9951697
    Abstract: A period from ignition timing to maximum heat release rate timing, at which a heat release rate is maximum, within a combustion period of air-fuel mixture is defined as a first combustion period that is one of characteristic values of a heat release rate waveform. The first combustion period is estimated based on a cylinder volume at the maximum heat release rate timing (maximum heat release rate cylinder volume) irrespective of any of an engine load factor, an EGR rate, an air-fuel ratio, an oil or coolant temperature and opening and closing timing of an exhaust valve through correction by the use of the exponential function of an engine rotation speed with an exponent of a value commensurate with a tumble ratio. The heat release rate waveform is calculated by using the estimated first combustion period.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: April 24, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Munenori Imaeda
  • Patent number: 9709016
    Abstract: An ignition device for an internal combustion engine has an ignition coil disposed as a transformer, a spark plug connected to the secondary winding of the ignition coil, an actuatable switching element connected in series with the primary winding of the ignition coil, and a control unit connected to the primary winding and to the control input of the switching element. After charging the ignition coil, building up an ignition spark through non-conductive switching of the switching element, and after renewed conductive switching of the switching element for operating the ignition coil in transformer operation, the supply voltage of the control unit is detected and if a pre-determined value, representing the presence of a surface gap, is exceeded, the switching element is once more switched non-conductive.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: July 18, 2017
    Assignee: Continental Automotive GmbH
    Inventors: Achim Reuther, Harald Schmauss, Sven-Michael Eisen, Martin Goetzenberger
  • Patent number: 9605643
    Abstract: There is provided a leakage detection apparatus that can accurately detect a leakage condition in an internal combustion engine having a cylinder resting function. An ignition plug provided in the combustion chamber of a cylinder is made to generate an ignition signal at least once when based on an instruction from a cylinder resting control unit, a fuel injection valve and a valve driving mechanism are stopping the operation thereof; the leakage condition of the ignition plug is detected based on an output signal generated by an ion current detection circuit at a timing other than the timing when ignition discharge is caused.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: March 28, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takahiko Inada, Takahiro Enomoto, Yuhei Matsushima, Takeshi Koda
  • Patent number: 9410488
    Abstract: The present invention relates to variable valve timing control device and control method, which change valve timing of an internal combustion engine. An operation amount for controlling the valve timing is computed, and an operation amount computed at position detection timing of a valve timing control system is divided and output until next position detection timing.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: August 9, 2016
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventor: Kentaro Mikawa
  • Patent number: 9358892
    Abstract: A method/system is provided for improving reverse hill climb performance of a hybrid vehicle. An electronic control unit (ECU) determines whether pre-charging is needed based on vehicle state and environmental conditions. This determination can be based on a grade value of a hill upon which the vehicle is positioned, a state of charge (SOC) of the battery, and/or the expected distance that the vehicle will travel uphill. The ECU sets a charging rate and a target charge value based on the foregoing data. The battery may be charged to have an SOC that exceeds an actual needed target charge value by a hysteresis margin. A message may be displayed requesting the driver to wait until pre-charging is complete. The engine charges the battery at the charging rate until the SOC reaches the target charge value. The driver is prompted that he or she can start reverse driving.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: June 7, 2016
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventor: Geoffrey D. Gaither
  • Patent number: 9291142
    Abstract: An ignition control device is applied to an engine configured to generate one or more discharges within an ignition period. Regarding the device, a discharge voltage within first period or an amount of fuel included in the gas is referred to as a first parameter, which first period is from a discharge start timing to an intermediate timing after and near the discharge start timing, a discharge voltage within second period or a flow rate of the gas near the discharge is referred to as a second parameter, which second period is from the intermediate timing to a discharge end timing, and it is determined whether to start another discharge following the discharge within the ignition period based on at least the second parameter among the first and second parameters. Furthermore, the another discharge is started with an ignition unit when being determined to start the another discharge.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: March 22, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Sachio Mori
  • Publication number: 20150128577
    Abstract: An ignition control device for an engine provided with ignition plugs for each cylinder. The ignition control device includes a sensor that detects a signal that determines whether the engine is in an idling state or not, and an ignition control unit that determines whether the engine is in the idling state on the basis of a signal from the sensor and controls the ignition plugs to be simultaneously ignited if the engine is in the idling state, and controls part of the ignition plugs to be ignited if the engine is in a state other than the idling state.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 14, 2015
    Inventor: Takuya EGUCHI
  • Publication number: 20150116955
    Abstract: An engine control unit including a substantially rectangular printed circuit board in which a microcontroller is mounted. The printed circuit board includes a connector portion in which connection terminals are provided to be arranged in one side edge portion along the longitudinal direction thereof. The connection terminals of the connector portion include connection terminals for input on one side in the longitudinal direction and connection terminals for output on the other side with respect to a setting position. A microcontroller is disposed at substantially the center portion of the printed circuit board in the longitudinal direction thereof. An electronic component as an input interface circuit is disposed on the one side in the longitudinal direction, and an electronic component as an output interface circuit is disposed on the other side.
    Type: Application
    Filed: November 26, 2014
    Publication date: April 30, 2015
    Applicant: MIKUNI CORPORATION
    Inventors: Ichiro TSUJI, Ryuichi YAMAZAKI, Yoshitaka KOGA
  • Publication number: 20150053178
    Abstract: A system and method is provided for applying an electric field in internal combustion engines to act on the combustion process to reduce emissions and improve fuel economy in an engine. The engine has an engine block forming a combustion chamber. An in-cylinder engine part is exposed within a combustion chamber of the engine and a voltage is applied between the in-cylinder engine part and the engine block.
    Type: Application
    Filed: March 28, 2013
    Publication date: February 26, 2015
    Inventors: Fadi A. Estefanous, Naeim A. Henein
  • Publication number: 20150051809
    Abstract: Methods and systems are provided for improving the performance of a variable displacement engine. Split injection and spark retard may be used in active cylinder during a VDE mode to heat an exhaust catalyst and extend the duration of VDE mode operation. Split injection and spark retard may also be used in reactivated cylinders at a time of cylinder reactivation to improve restart combustion stability.
    Type: Application
    Filed: August 15, 2013
    Publication date: February 19, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Chris Paul Glugla, Steven Schwochert, Ken Jahr
  • Publication number: 20150040863
    Abstract: An engine control mechanism includes intake and exhaust valves that opens and closes a combustion chamber of an engine to be driven with gasoline.
    Type: Application
    Filed: July 18, 2014
    Publication date: February 12, 2015
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventor: Masaaki KANEKO
  • Publication number: 20150034047
    Abstract: An object of the invention is to provide a control device for an internal combustion engine that regularly and forcefully removes deposit that is accumulated in cylinders and restrains consecutive occurrences of pre-ignition beforehand. The internal combustion engine has a low-speed pre-ignition region in which a possibility of occurrence of pre-ignition increases, in a low-rotation and high-load region. Ignition means (16) for igniting an air-fuel mixture taken into the cylinders is included.
    Type: Application
    Filed: March 7, 2012
    Publication date: February 5, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroshi Yaguchi, Masashi Shinoda, Takeshi Kitayama
  • Patent number: 8931457
    Abstract: A multiplexing drive circuit for an AC ignition system having a common leg that includes two switches coupled in series, and one or more dedicated legs, wherein each leg includes two switches coupled in series. The multiplexing drive circuit also includes a transformer for each of the one or more dedicated legs, each transformer having a primary winding coupled between one of the one or more dedicated legs and the common leg, and wherein each transformer has a secondary winding coupled in parallel to a spark plug, and a pulse-width modulated (PWM) switch controller configured to operate the common leg and dedicated leg switches to control characteristics of the spark discharge for the spark plug. Wherein the switch controller is capable of real time diagnostic checks by monitoring the time at which a spark discharge event takes place.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: January 13, 2015
    Assignee: Woodward, Inc.
    Inventors: David C. Petruska, Doyle Kent Stewart, Monte Lee Wegner, Gerald Michael Eberhardt
  • Publication number: 20140345565
    Abstract: An ignition control device is applied to an engine configured to generate one or more discharges within an ignition period. Regarding the device, a discharge voltage within first period or an amount of fuel included in the gas is referred to as a first parameter, which first period is from a discharge start timing to an intermediate timing after and near the discharge start timing, a discharge voltage within second period or a flow rate of the gas near the discharge is referred to as a second parameter, which second period is from the intermediate timing to a discharge end timing, and it is determined whether to start another discharge following the discharge within the ignition period based on at least the second parameter among the first and second parameters. Furthermore, the another discharge is started with an ignition unit when being determined to start the another discharge.
    Type: Application
    Filed: September 14, 2011
    Publication date: November 27, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Sachio Mori
  • Publication number: 20140299098
    Abstract: An internal combustion engine includes a cylinder and a piston journalled to reciprocate therein. The cylinder and piston conjointly delimit a combustion chamber into which a spark plug projects. Ignition of the spark plug occurs at an ignition time point controlled by a control unit. The ignition time point is controlled in an idle speed range according to an idle control having a most advanced ignition time point. The engine has a decompression valve which, when open, connects the combustion chamber to a pressure relief space. The valve is open during engine start and closes when pressure in the combustion chamber exceeds a closing pressure. To close the valve, the ignition occurs in the idle speed range for an engine cycle departing from the idle control at a closing ignition time point lying approximately 5° crankshaft angle ahead of the most advanced ignition time point.
    Type: Application
    Filed: April 4, 2014
    Publication date: October 9, 2014
    Applicant: Andreas Stihl AG & Co. KG
    Inventors: Michael Raffenberg, Clemens Klatt
  • Patent number: 8843298
    Abstract: An engine control system which may be used in automotive vehicles includes first correlation data representing correlations between performance parameters associated with different types of performances of a combustion engine and uncorrelated common factors existing among the performance parameters and second correlation data representing correlations between the common factors and combustion parameters associated with combustion states of fuel in the combustion engine. The engine control system determines target values of the common factors using the first correlation data and also determines target values of the combustion parameters using the second correlation data. The engine control system determines command values as a function of the target values of the combustion parameter and outputs them to actuators which control combustion states of fuel in the engine for achieving desired levels of the performances of the combustion engine.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: September 23, 2014
    Assignee: Denso Corporation
    Inventors: Yuuki Nakatsuji, Sumitaka Ikeda, Kazuhiro Higuchi, Koji Ishizuka
  • Publication number: 20140261318
    Abstract: Methods and systems are provided for pre-ignition control. A pre-ignition mitigating enrichment is deactivated in response to a tip-out but reactivated in response to a subsequent tip-in. By preemptively enriching the engine, repeated pre-ignition due at subsequent tip-ins is reduced.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Chris Paul Glugla, Robert Sarow Baskins, Chris Richard Weber, James Matthew Kindree, Timothy Earle
  • Publication number: 20140251271
    Abstract: An engine ignition shutdown module includes a voltage regulator circuit connected to a key switch, and a pair of isolated MOSFET driver circuits connected to the voltage regulator circuit. Each MOSFET driver circuit charges a capacitor while the key switch is in a run position and the interlock switches are closed, and each capacitor discharges through a resistor for a time delay period once the key switch is moved from the run position to an off position or at least one of the interlock switches are opened. A pair of high voltage output MOSFET transistors are switched on while the capacitors discharge and provide an output to a magneto ignition for the time delay period.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 11, 2014
    Applicant: DEERE & COMPANY
    Inventors: David A. Straka, Quintin D. Rigert, Jason D. Raabe, Allan D. Narveson
  • Publication number: 20140216401
    Abstract: A pulsed electrical charge or voltage may be applied to a pulsed fuel stream or combustion reaction supported by the fuel stream. The pulsed charge or voltage may be used to affect fuel mixing, flame trajectory, heat transfer, emissivity, reaction product mix, or other physical property of the combustion reaction.
    Type: Application
    Filed: February 4, 2014
    Publication date: August 7, 2014
    Applicant: ClearSign Combustion Corporation
    Inventors: JOSEPH COLANNINO, ROBERT E. BREIDENTHAL, IGOR A. KRICHTAFOVITCH, CHRISTOPHER A. WIKLOF
  • Publication number: 20140190449
    Abstract: A system according to the principles of the present invention includes a firing fraction module, an offset generation module, and a firing fraction module. The firing fraction module determines a firing fraction based on a driver torque request. The offset generation module randomly generates an offset. The firing control module adds the firing fraction to a running total each time that a crankshaft of an engine rotates through a predetermined angle, adds the offset to the running total, and executes a firing event in a cylinder of the engine when the running total is greater than or equal to a predetermined value.
    Type: Application
    Filed: March 13, 2013
    Publication date: July 10, 2014
    Applicant: GM Global Technology Operations LLC
    Inventor: ANDREW W. PHILLIPS
  • Publication number: 20140116382
    Abstract: The invention relates to a method for generating an ion current which occurs as a direct current between a central electrode and one or more side electrodes of a spark plug of a spark ignition engine which is supplied repeatedly with an ignition voltage from an ignition voltage source, wherein the spark ignition engine is assigned an engine control unit, which, in an engine cycle, determines for each spark plug a target ignition point and/or an activation point for the ignition voltage source before the target ignition point, and a second voltage source is provided, which delivers a second voltage for the generation of the ion current, wherein the second voltage source lying in the engine cycle for a first time interval ?t1, which is shorter than the duration of the engine cycle, is connected to the electrodes of the spark plug, and wherein the ion current flowing as a result of the application of the second voltage to the electrodes of the spark plug takes a path which avoids the ignition voltage source.
    Type: Application
    Filed: October 25, 2013
    Publication date: May 1, 2014
    Inventors: Arun Sasikumar Sujatha, Ganghua Ruan, Stefan Heinzelmann, Dirk Wüstenhagen, Ulrich Schönauer
  • Publication number: 20140102412
    Abstract: A system and method for delivering spark to an engine is disclosed. In one example, a single conductor carries a spark signal that is indicative of a desired spark advance for a plurality of ignition coils. The system and method may reduce wiring complexity for spark plugs that are supplied energy via two ignition coils.
    Type: Application
    Filed: March 14, 2013
    Publication date: April 17, 2014
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Michael Damian Czekala, Garlan J. Huberts, Qiuping Qu
  • Publication number: 20140090624
    Abstract: A system according to the present disclosure includes a spectral density module and a firing sequence module. The spectral density module determines a spectral density of engine speed. The firing sequence module selects a first set of M cylinders of an engine to activate, selects a second set of N cylinders of the engine to deactivate, and selects a firing sequence to activate the first set of M cylinders and to deactivate the second set of N cylinders. M and N are integers greater than or equal to one. The firing sequence specifies whether each cylinder of the engine is active or deactivated. Based on the spectral density, the firing sequence module adjusts the firing sequence to adjust M and N and/or to adjust which cylinders of the engine are included in the first set and which cylinders of the engine are included in the second set.
    Type: Application
    Filed: March 13, 2013
    Publication date: April 3, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Douglas R. Verner
  • Publication number: 20140069381
    Abstract: A system according to the principles of the present disclosure includes a vibration prediction module and a firing sequence module. The vibration prediction module predicts a modal response of a vehicle based on a firing sequence of an engine when a cylinder of the engine is deactivated. The firing sequence module adjusts the firing sequence of the engine based on the predicted modal response of the vehicle.
    Type: Application
    Filed: March 13, 2013
    Publication date: March 13, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Randall S. Beikmann
  • Publication number: 20140069080
    Abstract: Embodiments for controlling an exhaust back-pressure valve are provided. In one example, a method for operating an engine comprises closing an exhaust back-pressure valve in response to a component temperature, and adjusting intake and/or exhaust valve operation in response to closing the exhaust back-pressure valve to reduce cylinder internal exhaust gas recirculation (EGR). In this way, combustion stability may be maintained while the exhaust back-pressure valve is closed.
    Type: Application
    Filed: September 10, 2012
    Publication date: March 13, 2014
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Thomas G. Leone, Peter C. Moilanen
  • Publication number: 20140069380
    Abstract: Embodiments for controlling an exhaust back-pressure valve are provided. In one example, a method for operating an engine comprises closing an exhaust back-pressure valve in response to a component temperature, adjusting intake and/or exhaust valve operation in response to closing the exhaust back-pressure valve to reduce cylinder internal exhaust gas recirculation (EGR), and while the exhaust back-pressure valve is closing, indicating degradation of an exhaust back-pressure system if a designated engine operating parameter remains constant. In this way, degradation of the exhaust back-pressure system may be diagnosed while maintaining combustion stability.
    Type: Application
    Filed: September 10, 2012
    Publication date: March 13, 2014
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Thomas G. Leone, Peter C. Moilanen
  • Publication number: 20140053808
    Abstract: In the present spark ignition internal combustion engine, a shortest self-ignition delay time ?min for a maximum cylinder internal pressure Pmax and a maximum cylinder internal temperature Tmax when equivolume combustion is realized is calculated by using a calculation formula which uses a cylinder internal pressure and a cylinder internal temperature to calculate an self-ignition delay time, and a knock limit ignition timing ITA is determined by the calculated shortest self-ignition delay time as the basis to determine.
    Type: Application
    Filed: May 2, 2011
    Publication date: February 27, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yukihiro Nakasaka
  • Publication number: 20140048039
    Abstract: A method for controlling an ignition system of an internal combustion engine, with which a device for the detection of misfires is provided, comprises operation of the internal combustion engine in a calibration mode, wherein the calibration mode includes stepwise reduction of the ignition energy by changing the ignition parameter starting from an initial value, detecting the reaching of a combustion failure limit based on the signal of the detection device and again reducing the ignition energy if the combustion failure limit has not yet been reached, and storing the ignition parameter at the point in time of reaching the combustion failure limit. When not in the calibration mode, operation of the ignition system takes place according to the stored ignition parameter. With such feedback control, electrode burn of the spark plugs is reduced, leading to an extension of the service life of the spark plugs.
    Type: Application
    Filed: August 14, 2013
    Publication date: February 20, 2014
    Applicant: Ford Global Technologies, LLC
    Inventors: Georg Louven, Klemens Grieser, Kay Hohenboeken, Oliver Berkemeier
  • Publication number: 20140041630
    Abstract: Various methods and arrangements for operating a skip fire engine control system are described. In one aspect of the invention, a distinct firing sequence is determined for each bank of working chambers that is used to operate the bank in a skip fire manner. Each firing sequence uses a different firing fraction. In another aspect of the invention, a determination is made as to whether a firing sequence should be dynamically generated or selected from a set of predefined firing sequences.
    Type: Application
    Filed: August 9, 2013
    Publication date: February 13, 2014
    Applicant: Tula Technology, Inc.
    Inventors: Steven E. CARLSON, Xin YUAN, Louis J. SERRANO, Joshua P. SWITKES, Biswa R. GHOSH, Norman C. LO
  • Patent number: 8620559
    Abstract: A system and a method for executing tasks for an internal combustion engine (14) has two control devices (1, 2), with the two control devices (1, 2) being provided in order to process the tasks independently of one another, with the first control device (1) having a first release signal and a first switchover signal, with the second control device having a second release signal and a second switchover signal, with, by exchanging the two release signals and the two switchover signals, it being defined that only one of the two control devices (1, 2) executes a defined task at the same time.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: December 31, 2013
    Assignee: Continental Automotive GmbH
    Inventors: Martin Jehle, Wolfgang Moser, Peter Russe
  • Publication number: 20130327293
    Abstract: An operating mode for an internal combustion engine, in particular a directly injected internal combustion engine featuring a plurality of combustion chambers, in particular for a direct-injection gasoline engine, for example in a motor vehicle, an operating mode having at least in part low-NOx combustion (NAV) and having a plurality of partial operating modes whereby it is switched between a RZV partial operating mode having pure controlled auto-ignition (RZV) and a NAV partial operating mode, whereby in the case of said NAV partial operating mode, at an ignition point (ZZP) a largely homogeneous, lean fuel/exhaust gas/air mixture in the respective combustion chamber having a combustion air ratio of ??1 is spark ignited by means of an ignition device, where the flame front combustion (FFV) initiated by the spark-ignition transitions to a controlled auto-ignition (RZV).
    Type: Application
    Filed: April 6, 2013
    Publication date: December 12, 2013
    Applicant: DAIMLER AG
    Inventor: DAIMLER AG
  • Publication number: 20130327294
    Abstract: The present invention has been made in view of the above-mentioned problems, and is intended to carry out ignition to a mixture in a more stable manner in a multi-fuel internal combustion engine. In the control apparatus for a multi-fuel internal combustion engine which is able to be operated by mixed combustion of a plurality of kinds of fuels, a mixing ratio of the plurality of kinds of fuels is controlled by a mixing ratio control unit, and ignition timing of a spark plug is controlled by an ignition timing control unit, in such manner that a required discharge voltage is made equal to or less than a voltage which is lower by a fixed value than a voltage to be applied to said spark plug (S104, S108).
    Type: Application
    Filed: February 24, 2011
    Publication date: December 12, 2013
    Inventors: Satoshi Taniguchi, Masahiko Masubuchi, Hiroshi Eto
  • Patent number: 8601685
    Abstract: A converter converts mechanical energy of a piston to and from electrical energy during each piston cycle.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: December 10, 2013
    Assignee: The Invention Science Fund I, LLC
    Inventors: Roderick A. Hyde, William H. Gates, III, Muriel Y. Ishikawa, Jordin T. Kare, Nathan P. Myhrvold, Clarence T. Tegreene, Thomas A. Weaver, Charles Whitmer, Lowell L. Wood, Jr., Victoria Y. H. Wood
  • Patent number: 8590507
    Abstract: A variable valve actuation (VVA) system comprises a spark control module and a phaser control module. The spark control module maintains a spark timing of a cylinder at a maximum braking torque (MBT) spark timing during engine idling. The phaser control module, during the engine idling, adjusts an intake valve timing of the cylinder away from a predetermined intake valve timing. The predetermined intake valve timing corresponds to a maximum air per cylinder (APC) for the cylinder at a current engine speed. The adjustment of the intake valve timing produces an APC that is less than the maximum APC.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: November 26, 2013
    Inventors: Craig D. Marriott, Matthew A. Wiles
  • Publication number: 20130298870
    Abstract: A variety of methods and arrangements for controlling the operation of an internal combustion engine in a skip fire variable displacement mode are described. Generally, an engine is controlled to operate in a skip fire variable displacement mode. In one aspect, the spark timing associated with each fired working cycle is based at least in part on the firing history of the fired working chamber.
    Type: Application
    Filed: July 18, 2013
    Publication date: November 14, 2013
    Inventors: Adya S. TRIPATHI, Chester J. SILVESTRI, Christopher W. CHANDLER, Christopher C. HAND, Joshua P. SWITKES, Mark A. WILCUTTS
  • Publication number: 20130291833
    Abstract: A method is disclosed for operating an ignition device for an internal combustion engine, said device having an ignition coil designed as a transformer, an igniter plug connected to the ignition coil secondary winding, a controllable switching element connected in series to the ignition coil primary winding and a control unit connected to the ignition coil primary winding and the control input of the switching element, wherein the control unit provides a supply voltage for the ignition coil and a control signal for the switching element depending upon the flows through the ignition coil primary and secondary winding and the voltage between the connection point of the ignition coil primary winding to the switching element and the negative terminal of the supply voltage, to provide an adjustable alternating current for the igniter plug, to provide a targeted supply of power distributed over the ignition time interval.
    Type: Application
    Filed: November 9, 2011
    Publication date: November 7, 2013
    Inventors: Sven-Michael Eisen, Stephan Bolz, Harald Schmauß, Achim Reuther, Martin Götzenberger
  • Publication number: 20130291834
    Abstract: The disclosure relates to a method for operating a spark ignition gas engine, with fuel gas in the form of biogas by setting an ignition time (ZZP) of the spark ignition gas engine. The method comprises to following steps: mixing of air and fuel gas to form a combustible gas mixture in a mixing arrangement, feeding in and igniting the combustible gas mixture in the combustion chamber while setting an ignition time (ZZP) and burning the combustible gas mixture while discharging exhaust gas from the combustion chamber. The method further comprises the steps of: detection of an exhaust gas temperature (T_AG) of the exhaust gas, predefining at least one reactor position (LRV) of a component of the mixing arrangement, setting the ignition time (ZZP) of the spark ignition gas engine as a function of the exhaust gas temperature (T_AG) and the reactor position (LRV). The reactor position (LRV) is predefined as a manipulated variable by a mixture controller.
    Type: Application
    Filed: November 14, 2011
    Publication date: November 7, 2013
    Applicant: MTU Onsite Energy GmbH
    Inventors: Markus Diehl, Tobias Lindermayr
  • Patent number: 8490598
    Abstract: Systems and methods for controlling an internal combustion engine include an ignition coil that generates a pre-discharge ionization signal during charging of the ignition coil after reaching a first threshold charge level and prior to spark discharge and a controller that determines an engine operating condition, such as pre-ignition or plug fouling, in response to the pre-discharge ionization signal. The ignition coil may also generate digital feedback and ionization signals used to by the controller for to control ignition coil dwell and repetitive sparking, as well as providing various combustion diagnostics.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: July 23, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Qiuping Qu, Garlan J. Huberts, Christopher Paul Glugla
  • Publication number: 20130152898
    Abstract: A variable ignition type diesel-gasoline dual fuel powered combustion engine and control method can select spark ignition or compression ignition depending on the engine operating range. The variable ignition type diesel-gasoline dual fuel powered combustion engine includes a cylinder block formed of a plurality of cylinders each being connected to an air intake manifold sucking air or a gasoline fuel-mixed air and an exhaust manifold exhausting an exhaust gas after combustions; and an ECU controlling the combustion modes. The engine operating ranges are judged by the speed and load of the engine. When the range is the high load range or the low load range, a gasoline fuel combustion is performed, and when the range is between the high load range and the low load range, a diesel-gasoline dual fuel powered step is performed.
    Type: Application
    Filed: December 13, 2012
    Publication date: June 20, 2013
    Applicant: Hyundai Motor Company
    Inventor: Hyundai Motor Company
  • Patent number: 8464529
    Abstract: A method of operating a turbocharged engine having cylinders in which one of the cylinders undergoes a compression stroke. The method includes advancing an ignition spark in the one of the cylinders undergoing the compression stroke by a first amount relative to top dead center of the compression stroke at a first barometric pressure for a given engine speed and load, and advancing the ignition spark in the one of the cylinders undergoing the compression stroke by a second, lesser amount relative to top dead center of the compression stroke at a second, lower barometric pressure, for the given engine speed and load as the vehicle being at different altitudes.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: June 18, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Felix Nedorezov, Ken Jahr
  • Patent number: 8442746
    Abstract: In order to provide an ignition control device 30 which can efficiently control timing of thermal ignition of gaseous mixture in a combustion region 10, the peak estimation part 32, the ignition timing determination part 33, the control timing determination part 34, and the plasma control part 35 control timing of thermal ignition of the gaseous mixture in the combustion region 10 by controlling the pulse generator 36, the electromagnetic wave oscillator 37, the mixer circuit 38, and the spark plug 15 so as to increase the amount of OH radicals in the combustion region 10 during a low-temperature oxidation preparation period that occurs prior to a peak of a heat release rate before the thermal ignition of the gaseous mixture.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: May 14, 2013
    Assignee: Imagineering, Inc.
    Inventors: Hiromitsu Ando, Yuji Ikeda
  • Publication number: 20130112169
    Abstract: Products and processes are provided herewith for analyzing octane content in a fuel sample that include the step or steps of receiving an octane measurement of a fuel sample from a octane analyzer, rounding the octane measurement to a nearest recognized octane rating, comparing the rounded octane measurement with a listed octane rating for the fuel sample, and communicating results of the comparison to a user of the octane analyzer. The octane analyzer may be incorporated into a fuel pump or a vehicle. The results of the comparison may also be used to adjust the vehicle operating parameters to account for the actual octane rating of the fuel dispensed into the vehicle.
    Type: Application
    Filed: August 7, 2012
    Publication date: May 9, 2013
    Applicant: CFPH, LLC
    Inventors: Howard W. Lutnick, Antonio Papageorgiou
  • Publication number: 20130104845
    Abstract: An ignition system for an internal combustion engine that utilizes a single primary coil and a single secondary coil to drive a pair of spark plugs. Current flowing in both a first direction and a second direction passes through the primary coil. The current flowing through the primary coil induces corresponding current in the secondary coil, which flows from the secondary coil to one of two spark plugs. Each spark plug is coupled to the secondary coil such that each of the two spark plugs receives current flowing only in a single direction. The current flowing through the ignition system can be from either a power source or created by the rotation of a flywheel having a series of magnet clusters.
    Type: Application
    Filed: October 28, 2011
    Publication date: May 2, 2013
    Applicant: BRIGGS & STRATTON CORPORATION
    Inventors: Robert J. Koenen, Andrew Paskov