Including Means Responsive To Instantaneous Change In Engine Speed Patents (Class 123/436)
  • Patent number: 10711707
    Abstract: A method for ascertaining whether a combustion process is being carried out in a cylinder of an internal combustion engine, it being decided whether or not the combustion process is present as a function of a relative angle between a characteristic signature of a variable characterizing a time curve of a state variable of the internal combustion engine and a specifiable crankshaft angle.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: July 14, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Lydia Gauerhof, Heiko Fahrion, Magnus Oppelland
  • Patent number: 10699495
    Abstract: Provided as display portions configured to display maintenance related information pieces about a plurality of maintenance items of a vehicle are: a first display portion configured to, when at least one of the plurality of maintenance items is in a predetermined maintenance period, display the maintenance related information piece about the maintenance item that is in the predetermined maintenance period, the predetermined maintenance period including a predetermined maintenance timing and periods before and after the predetermined maintenance timing; and a second display portion configured to, when none of the plurality of maintenance items is in the maintenance period, display only the information piece about a nearest one of the maintenance timings of the plurality of maintenance items.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: June 30, 2020
    Assignee: Mazda Motor Corporation
    Inventors: Tsuneo Kudou, Hiroyuki Watase, Fumiaki Sugino
  • Patent number: 10683099
    Abstract: The present disclosure provides a method and a system for controlling operation of an engine of an aircraft. A first engine power limit associated with a thrust limit for a propeller coupled to the engine is obtained. The first engine power limit is compared to a second engine power limit associated with a mechanical limit for the engine and to a third engine power limit associated with a thermal limit for the engine. A maximum engine power limit is set at a lowest value of the first, second, and third engine power limits.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: June 16, 2020
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Carmine Lisio, Michel Labrecque
  • Patent number: 10655519
    Abstract: A vehicle includes a filter disposed in an exhaust passage through which exhaust gas discharged from an internal combustion engine passes, the filter being configured to collect PM that is particulate matter contained in the exhaust gas; a PM removal control device configured to start execution of PM removal control that heats the filter to remove the PM accumulated on the filter while the internal combustion engine is stopped; and a determination device configured to determine whether a user of the vehicle is away from the vehicle. The PM removal control device is configured to start the execution of the PM removal control only when the determination device determines that the user of the vehicle is away from the vehicle.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: May 19, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Edgar Yoshio Morales Teraoka, Katsuhiro Itou, Ryouhei Ohno, Akira Mikami, Keishi Takada, Masaaki Satou
  • Patent number: 10640118
    Abstract: A method for controlling a powertrain of a vehicle may include: controlling, by a controller, an engine of the vehicle to be operated when an ignition key of the vehicle is in an on state; and determining, by the controller, whether the controller generates a command changing a state of a clutch based on an operation state of the vehicle. The clutch connects or disconnects a crankshaft of the engine and a crankshaft pulley including the clutch. The crankshaft pulley is connected to a generator pulley and an air conditioner compressor pulley via a belt.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: May 5, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jeong Sung Kim, Keun Sang Kim, Hyoseong Wi, Dae Kwang Kim
  • Patent number: 10626818
    Abstract: A control device for an internal combustion engine includes an electronic control unit configured to perform dither control processing for controlling the fuel injection valve based on a requested injection amount such that a part of cylinders among a plurality of cylinders becomes a lean combustion cylinder and cylinders different from the part of cylinders among the cylinders become a rich combustion cylinder, and restriction processing for, in a case where the requested injection amount is equal to or greater than a first injection amount, making no restriction on the dither control processing, and in a case where the requested injection amount is within a second injection amount range of an injection amount smaller than the first injection amount, restricting the dither control processing to a side where a leaning degree of an air-fuel ratio of a cylinder having a leanest air-fuel ratio among the cylinders decreases.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: April 21, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuki Nose, Keiichi Myojo, Yoshiyuki Shogenji, Eiji Ikuta
  • Patent number: 10619591
    Abstract: A method for operating a fuel feed pump, the fuel feed pump having a pump system and an electrically commutated electric motor, the pump system being drivable by the electric motor, includes: detecting fluctuation in circular motion of the pump system over a rotational speed of the pump system to obtain a value of the fluctuation; standardizing the detected value of the fluctuation to obtain a standardized valise; and in a case in which a predefinable limit is exceeded by the standardized value, limiting a gradient of change in the rotational speed of the pump system.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: April 14, 2020
    Assignee: Continental Automotive GmbH
    Inventors: Rolf Graf, Matthias Bludau
  • Patent number: 10597038
    Abstract: A control method for an engine includes determining whether a predetermined fuel supply stop condition has been fulfilled, executing stop time vibration suppression control of, after stop of fuel supply in response to fulfillment of the predetermined fuel supply stop condition, temporarily performing fuel supply to the engine to suppress vehicle vibration, and stopping fuel supply to all cylinders after the execution of the stop time vibration suppression control. The stop time vibration suppression control includes determining whether a first predetermined number of cylinders have undergone a combustion stroke after the stop of the fuel supply, the first predetermined number being according to a engine revolution speed or a reduction ratio from the engine to drive wheels, and in a case where the first predetermined number of cylinders have undergone the combustion stroke, performing fuel supply to a second predetermined number of cylinders.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: March 24, 2020
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Masafumi Okishima, Shingo Yamanaka, Ryuji Watanabe, Manabu Okamura, Kenichi Tsubaki
  • Patent number: 10584646
    Abstract: Systems and methods for regulating fuel flow to a gas turbine engine are provided. Power for the engine is governed using a control structure having an inner control loop and an outer control loop, the outer control loop comprising a feedback controller that outputs a feedback command based on a power error determined as a function of a shaft horsepower, the feedback command used to determine a gas generator speed error, the gas generator speed error used by the inner control loop for outputting a fuel flow command. The shaft horsepower is determined from a torque measurement of the engine using a torque pressure transducer. When a momentary loss of the torque measurement from the torque pressure transducer is detected, power fluctuations due to the loss of torque measurement are limited by maintaining the feedback command from the feedback controller constant during the momentary loss of torque measurement.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: March 10, 2020
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventor: Gabriel Meunier
  • Patent number: 10570849
    Abstract: Methods and systems are provided for controlling a vehicle engine to deliver desired torque to a power take off device coupled to the engine. In one example, the method may include, learning a filtered PTO torque demand during vehicle acceleration, and steady state operation, and during transition in engine states using the learned PTO torque demand to adjust engine speed in order to deliver a desired engine torque output for optimal operation of the PTO device.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: February 25, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Dennis E. Homant, Bradley Dean Riedle, David James Liller
  • Patent number: 10539483
    Abstract: A misfire detection device includes an electronic control unit that calculates, based on a crank signal, a first component that is a first integer multiple frequency component of a combustion cycle related to a rotation change value and a second component that is a second integer multiple frequency component of the combustion cycle related to the rotation change value. The electronic control unit determines whether the second component has a maximum value or a minimum value in at least one of two phases of a phase where the first component has a maximum value and a phase where the first component has a minimum value. The electronic control unit determines that an interval between compression top dead centers of cylinders has continuous misfire based on a determination result of whether the second component has a maximum value or a minimum value.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: January 21, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Akihiro Katayama
  • Patent number: 10502659
    Abstract: An electronic control unit of a misfire detection device is configured to calculate first time series data based on a detected angle signal of a rotating shaft and a crank signal of a crankshaft in a connected state, a state where the rotating shaft and the crankshaft are connected. The electronic control unit is configured to generate, in the connected state, second time series data acquired by removing a predetermined frequency component from time series data indicating a rotational behavior of the crankshaft. The electronic control unit is configured to generate third time series data indicating the rotational behavior of the crankshaft by combining the second time series data with the predetermined frequency component based on the first time series data and the second time series data. The electronic control unit is configured to determine presence of misfire in an internal combustion engine based on the third time series data.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: December 10, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Akihiro Katayama
  • Patent number: 10495021
    Abstract: Provided is an engine control device capable of suppressing deterioration of combustion stability due to a change in engine temperature in an engine which performs lean combustion or EGR combustion. When lean combustion in which an air-fuel mixture leaner than a stoichiometric air-fuel ratio is burned or exhaust gas recirculation combustion in which a diluted air-fuel mixture is burned by re-suctioning exhaust gas discharged from the combustion chamber into the combustion chamber is performed, a ratio of a fuel injection amount during a compression stroke to a total fuel injection amount during one combustion cycle is increased as a temperature of an engine decreases.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: December 3, 2019
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Kenichiroh Ogata, Yoshinobu Arihara, Hisahiro Ooba, Takaki Itaya
  • Patent number: 10489855
    Abstract: Systems and methods for facilitating retail price improvement of a security order. The systems and methods may include receiving at an exchange, using a processor, a retail order to buy or sell a security; receiving at the exchange, using a processor, a contra-side non-displayed order for the security, wherein the contra-side non-displayed order has an improved price relative to a benchmark; and filling, using a processor, at least a portion of the retail order at the improved price using the contra-side non-displayed order.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: November 26, 2019
    Assignee: NYSE Group, Inc.
    Inventor: Joseph Mecane
  • Patent number: 10458351
    Abstract: A control system and method for controlling vehicle launch includes receiving a request to enable a launch control feature of a traction control system of the vehicle, the launch control feature being configured to improve torque transfer from an engine of the vehicle to a driveline of the vehicle; and in response to receiving the enable request for the launch control feature, generating a torque reserve at the engine by (i) increasing airflow into the engine to a level greater than a level for achieving a torque request for the engine and (ii) deactivating a predetermined set of cylinders of the engine by disabling their respective fuel injectors; detecting an intent of the driver to launch the vehicle; and in response to detecting the intent of the driver to launch the vehicle, releasing the torque reserve to increase a torque output of the engine based on the engine torque request.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: October 29, 2019
    Assignee: FCA US LLC
    Inventors: James M Wilder, Christopher E. Pueppke, Joseph M Johnson, Ibrahim Alkeilani, Anwar Alkeilani
  • Patent number: 10400701
    Abstract: Multiple mode control system for a vehicle includes a vehicle control unit operatively configured with manual override switch, one or plurality of sensors, audio output means and electronic control unit (ECU). The vehicle control unit includes processor configured with Read Only Memory, random access memory, analog to digital converter, switch driver and an optional communication engine and hard disk drive. The engine of the vehicle is configured with electronic control unit.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: September 3, 2019
    Assignee: MAHINDRA AND MAHINDRA LIMITED
    Inventors: Milind Vilas Deshmukh, Jacob David Raj, Amol Arun Relkar, Sanjiv Kashinath Khetmar, Vishal Dudhankar, Sachin Bhalchandra Kulkarni, Devising Sadashiv Rathod
  • Patent number: 10378414
    Abstract: A work vehicle accurately informs an operator of necessity of a regeneration operation and the manner thereof, and specific information on the regeneration operation. The work vehicle comprises a meter panel including: a regeneration operation indicator that indicates a state where the regeneration operation is necessary or a state where the regeneration operation is being performed, an alert indicator that indicates abnormality of the work vehicle, and a first display device that displays information on the regeneration operation. When the regeneration operation is necessary, the regeneration operation indicator, or the regeneration operation indicator and the alert indicator blink, and the first display device displays information on an operation necessary for performing the regeneration operation.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: August 13, 2019
    Assignee: YANMAR CO., LTD.
    Inventors: Dai Uehara, Toshiyuki Miwa
  • Patent number: 10358992
    Abstract: A controller is configured to perform a control process including steps of: setting a learning execution flag to be on when a learning process has not been completed in a present trip, an engine is in a fuel cut state, and a transmission gear position is a second or lower gear position; setting the learning execution flag to be off when the transmission gear position is in a third or higher gear position; controlling to bring the engine into the fuel cut state when the engine is not in the fuel cut state, an accelerator pedal is in an accelerator off state, and the transmission gear position is the second or lower gear position; and setting the learning execution flag to be on.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: July 23, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hitoki Sugimoto
  • Patent number: 10309338
    Abstract: A fuel injection valve (6) is configured such that the effective opening area of an injection port (61) increases as its lift amount increases. A fuel injection control unit (an engine control unit 100) injects fuel in a lift amount changing mode wherein, when fuel is injected into a combustion chamber (17) in the terminal period of the compression stroke, the lift amount of the fuel injection valve is set to a predetermined large lift amount in the earlier period of the injection period, and in the later period of the injection period following the earlier period of the injection period, the lift amount is set to a small lift amount smaller than the large lift amount and is in a range where the fuel injection speed increases.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: June 4, 2019
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Takeshi Nagasawa, Noriyuki Ota, Kenji Uchida, Ryohei Ono, Kiyotaka Sato, Hidefumi Fujimoto
  • Patent number: 10280865
    Abstract: Provided is a control device for an engine comprising an engine whose combustion mode is switchable according to an engine operation state, wherein the control device is capable of controlling the engine while suppressing generation of knock noise due to abnormal combustion. The control device comprises: a basic target torque-determining part (61) configured to determine a basic target torque based on a vehicle driving state including manipulation of an accelerator pedal; a torque reduction amount-determining part (63) configured to determine a torque reduction amount based on a vehicle driving state other than the manipulation of the accelerator pedal; a final target torque-determining part (65) configured to determine a final target torque based on the basic target torque and the torque reduction amount; and an engine control part (69) configured to set the combustion mode to a premixed combustion mode or a diffusion combustion mode according to the engine operation state.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: May 7, 2019
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Kenko Ujihara, Hiroaki Shiiba, Takeshi Matsubara, Naotoshi Shirahashi
  • Patent number: 10227946
    Abstract: A method for engine drivability robustness includes: dividing, by an engine controller, an engine state into a starting condition, a stop condition, and a deceleration condition; dividing an injection mode index of a fuel injection into a suction compression injection of the starting condition, a suction split injection of the stop condition, and a suction compression split injection of the deceleration condition, respectively, depending on a low volatile fuel condition; and performing a variable indexing mode to prevent an engine off by applying a lambda control factor for a rich lambda control by an increase in fuel amount to the deceleration condition.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: March 12, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Hee-Sup Kim, Jong-Sung Park
  • Patent number: 10208692
    Abstract: A misfire detecting system for an engine of a vehicle that detects a misfire of the engine is provided, which includes a processor. The processor determines whether a misfire has occurred by examining whether a fluctuation of a crank angle of the engine is equal to or greater than a determination reference value, acquires a value relating to a density of intake air introduced into the engine, and adjusts the determination reference value according to the value related to the density.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: February 19, 2019
    Assignee: Mazda Motor Corporation
    Inventors: Akio Saiki, Kenichi Ogasawara
  • Patent number: 10133684
    Abstract: An integrated circuit, preferably for controlling vehicle functions, having an analog-digital converter for converting an analog signal into digital measurement values, a DSP unit, connected downstream from the analog-digital converter, for pre-processing the digital measurement values, a central computing unit, connected to the DSP unit so as to transmit data, for further processing of the digital measurement values, the DSP unit being set up to control the analog-digital converter during operation.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: November 20, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Axel Aue, Martin Gruenewald
  • Patent number: 10107715
    Abstract: An estimation apparatus, includes: a sensor, disposed in the proximity of a crank rotor, configured to output a signal in response to a positional variation of an outer periphery of the crank rotor, the crank rotor including a plurality of protruding teeth formed at given distances and a tooth-missing region on an outer periphery of the crank rotor and configured to rotate in an interlocking relationship with a crankshaft of an internal combustion engine; and a processor configured to calculate a crank angular velocity of the internal combustion engine at given time intervals from the signal output from the sensor and estimate a first crank angular velocity corresponding to the tooth-missing region from second crank angular velocities at two or more points corresponding to at least one of portions before and after the tooth-missing region.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: October 23, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Hiromitsu Soneda, Masatoshi Ogawa, Takeo Kasajima
  • Patent number: 10094849
    Abstract: A rough road determination device (100) is mounted on a vehicle (1) that is equipped with an internal combustion engine (10) having a crank angle sensor (31). This rough road determination device is equipped with determination means (20) for determining whether or not a road on which the vehicle travels is a rough road, by comparing a first amplitude fluctuation amount as an amplitude fluctuation amount of one pulse of an output of the crank angle sensor, which is determined in advance on the basis of a rotational speed of the internal combustion engine, with a second amplitude fluctuation amount as an amplitude fluctuation amount of one pulse that is actually output from the crank angle sensor.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: October 9, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryo Hasegawa, Yukitoshi Aoyama, Junichi Murase, Daisuke Hayashi
  • Patent number: 10082096
    Abstract: A method for starting a motor vehicle engine includes measuring the profile of a rotational speed of an engine shaft of the motor vehicle engine. An estimated rotation speed of the engine shaft is determined that is expected to be present after one working cycle of the next cylinder to be fired. The estimated rotational speed is compared with a resonant rotational speed range of a vibration damper. Where the vibration damper is configured as a dual-mass flywheel and resonant vibrations occur in the vibration damper within the resonant rotational speed range. If the estimated rotational speed is within the resonant rotational speed range, at least one of introduction parameters for the introduction of a fluid to be introduced into the cylinder or an ignition time of the cylinder is changed so as to change the estimated rotational speed to be outside the resonant rotational speed range.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: September 25, 2018
    Assignee: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT
    Inventors: Michal Nawrocik, Philipp Baisch, Heiko Gross, Alexander Grau
  • Patent number: 10072589
    Abstract: Function of a compression release brake system of a compression ignited engine with a plurality of cylinders in a motor vehicle is checked by driving a crank shaft of the engine to rotate at a constant speed without injection of fuel into the cylinders while for each cylinder, for the compression release brake system in an inactive state and then in an active state, measuring the torque to be applied for maintaining said speed in a position of said crank shaft where the torque would be influenced by the behavior of that cylinder by a correctly functioning action of said compression release brake system in an active state. The torque values obtained for each cylinder for the compression release brake system in inactive and active state are compared, and the function of the compression release brake system for each individual cylinder of the engine is determined based on the comparison.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: September 11, 2018
    Assignee: Scania CV AB
    Inventors: Patrik Rönnqvist, Fredrik Mörner
  • Patent number: 10047690
    Abstract: The present disclosure teaches method for balancing cylinders in a motor vehicle including an engine which has at least two cylinders. The method may include: determining a cycle period of a cycle of the engine and a number of cycles of the engine, determining a cylinder value function for each cylinder of the engine for each cycle indicative of acceleration of a crankshaft of the engine caused by the corresponding cylinder, carrying out a signal analysis for each cylinder value function, detecting an amplitude for each signal, forming an amplitude mean value for each cylinder, detecting irregular running of the engine on the basis of the amplitude mean values, and compensating for the detected irregular running of the engine.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: August 14, 2018
    Assignee: CONTINENTAL AUTOMOTIVE GMBH
    Inventors: Gerhard Eser, Dirk Heinitz, Wolfgang Moser, Martin Reisinger
  • Patent number: 10029693
    Abstract: A system and method for controlling performance of a vehicle engine by sensing and/or accessing data regarding the driving environment and adjusting at least one of an engine output torque limit and a shifting schedule for the vehicle based on the sensed data.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: July 24, 2018
    Assignee: Cummins Inc.
    Inventors: Vivek A. Sujan, Jenni L. Muncie-Sujan
  • Patent number: 10006398
    Abstract: A control system for a multiple fuel internal combustion engine on a vehicle in a fleet of vehicles may include at least one gas analyzer configured to monitor real-time characteristics of gaseous fuel being supplied to the engine, a fleet management data monitoring module, and a cylinder pressure sensor associated with each cylinder of the engine. The control system may further include a data collection module configured to receive real-time fuel characteristics measurements from the gas analyzer, fleet data characteristic of one or more operational parameters, fuel usage, and performance results for vehicles in the fleet, and cylinder pressure measurements from each of the cylinder pressure sensors.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: June 26, 2018
    Assignee: Caterpillar Inc.
    Inventors: Nathan P. Atterberry, Matthew J. Engfehr
  • Patent number: 10006348
    Abstract: A turbocharger device includes: a turbocharger (3); and a turbo controller (35) configured to control a waste-gate valve (31) or a variable-displacement mechanism of an exhaust-gas amount supplied to the turbine to control a boost pressure of the turbocharger, the turbo controller (35) including a control calculation part (44) and a sensor signal input part (45) provided separately and independently from an engine controller (33) and being mounted to a compressor housing at a side of the compressor (23b) of the turbocharger (3).
    Type: Grant
    Filed: November 27, 2014
    Date of Patent: June 26, 2018
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Atsushi Matsuo, Takao Yokoyama
  • Patent number: 9959966
    Abstract: A cooling fan variable-frequency control system for a power transformer includes a control device and a fan unit. The control device includes a microprocessor that is set with a first temperature range, a second temperature range higher than the first temperature range, and a fan switching time. The microprocessor is connected to a temperature sensor for detecting a temperature of an insulating oil in a power transformer. A variable-frequency controller and a fixed-frequency controller are connected to the microprocessor and are connected to a switching controller. The fan unit is connected to the switching controller and includes first and second fans. The microprocessor controls the switching controller according to the fan switching time to thereby control the variable-frequency controller to connect with the first fan or the second fan. The first fan and the second fan can operate at a fixed frequency and at a variable frequency.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: May 1, 2018
    Assignee: Fortune Electric Co., Ltd.
    Inventors: Ming-He Lin, Chia-Ching Lin
  • Patent number: 9951711
    Abstract: A control device for an engine includes an angular velocity detecting unit that detects the angular velocity of a rotating shaft which is driven according to an output of an engine, an angular acceleration calculating unit that calculates angular acceleration based on the angular velocity detected by the angular velocity detecting unit, a heat generation timing calculating unit that calculates a certain timing when the ratio of an amount of heat generation in a cylinder to the total amount of heat generation of one cycle falls in a predetermined range, based on a change of the angular acceleration calculated by the angular acceleration calculating unit, and a combustion control unit that controls combustion in the cylinder by comparison between the certain timing calculated by the heat generation timing calculating unit and a predetermined heat generation timing reference value.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: April 24, 2018
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Kazuo Kurata, Jun Akasegawa, Koji Satake, Tetsuro Ishida
  • Patent number: 9944281
    Abstract: A device for the operation of a hybrid vehicle. The hybrid vehicle has a first and a second drive assembly. The drive assemblies in each case drive the hybrid vehicle, alone or jointly in a hybrid type of operation. The first drive assembly is operated with fuel from a fuel tank and a sensor device monitors an amount of fuel in the fuel tank. The device activates a safety operation of the hybrid vehicle if the amount of fuel is smaller than a specifiable value. The device reduces the output of the second drive assembly during the safety operation when a type of operation is being used in which the torque of the second drive assembly is directed oppositely to the torque of the first drive assembly.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: April 17, 2018
    Assignee: Robert Bosch GmbH
    Inventor: Peter Maigler
  • Patent number: 9891137
    Abstract: A variety of methods and arrangements for detecting failure of the commanded air induction in an internal combustion engine are described. In some embodiments, the intake manifold pressure is monitored. An air induction event generates a fluctuation in the intake manifold pressure, which is recorded. The signal is processed through a diagnostic filter to help determine whether the actual induction matched the commanded induction. In other embodiments, measured crankshaft acceleration is compared with estimated crankshaft acceleration. If the two quantities differ by a threshold amount an induction fault is detected. The two detection methods may also be combined. The describe approaches are particularly well suited for use in engines operating in a skip fire mode with cylinder deactivation and/or a dynamic firing level modulation mode.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: February 13, 2018
    Assignee: Tula Technology, Inc.
    Inventors: Shikui Kevin Chen, Allan J. Kotwicki, Joel D. Van Ess, Robert S. Bailey, Mohammad R. Pirjaberi
  • Patent number: 9885300
    Abstract: A method for controlling an engine which comprises a combustion pressure sensor includes receiving a combustion pressure signal from the combustion pressure sensor. An Indicated mean effective pressure (IMEP) deviation for each cylinder and an IMEP deviation for each driving cycle for the engine are calculated based on a combustion pressure according to the received combustion pressure signal. A main injection timing is set based on a difference between the calculated IMEP deviations for the each cylinder and a difference between the calculated IMEP deviations for the each driving cycle. The engine runs by injecting a fuel according to the set main injection timing.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: February 6, 2018
    Assignee: Hyundai Motor Company
    Inventor: Kyoungchan Han
  • Patent number: 9869305
    Abstract: A system controller manages a gas turbine engine driving a pump directly or indirectly coupled to the engine. The controller is programmed to automatically determine and adjust inputs to the gas turbine engine in order to cause the pump to produce a user-specified hydraulic output.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: January 16, 2018
    Assignee: TUCSON EMBEDDED SYSTEMS, INC.
    Inventors: David Crowe, Elden Crom
  • Patent number: 9835097
    Abstract: A variable displacement controller for deactivating one or more cylinder assemblies of a vehicle engine can include a processor for performing various operations and the operations can include: receiving data indicative of a requested torque and vehicle speed, determining a torque variable timer threshold value based on the received data indicative of requested torque and vehicle speed, initiating a timer, comparing the timer value to the variable timer threshold value, and selectively activating/deactivating at least one of the engine cylinder assemblies based on the comparison between the timer value and the variable timer threshold value. At least one of the engine cylinder assemblies is activated if the timer value is less than the variable timer threshold value, and at least one of the engine cylinder assemblies is deactivated if the timer value is greater than or equal to the variable timer threshold value.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: December 5, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Mark R. Schrewe, Adam H. Vosz, Paul K. Dehart, Courtney L. Forsythe
  • Patent number: 9835096
    Abstract: Some embodiments are directed to a variable displacement controller for use with a vehicular engine. The controller can receive data indicative of ambient temperature and data indicative of at least one of engine speed and vehicle speed. The controller can determine engine torque value based on the engine speed, and determine a torque limit based on the ambient temperature and at least one of the determined engine torque value and the data indicative of vehicle speed. The controller can compare the engine torque value to the torque limit, and selectively activate/deactivate an engine cylinder based on the comparison between the engine torque value and the torque limit, such that the engine cylinder is deactivated if the engine torque value is less than the torque limit, and the engine cylinder is activated if the engine torque value is greater than or equal to the torque limit.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: December 5, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Adam Vosz, Kiyonari Matsuda
  • Patent number: 9828926
    Abstract: A method for detecting defective injectors includes operating an internal combustion engine in an idling mode and deactivating mixture control of the internal combustion engine. The method also includes switching off selectively each injector of the respective injection group, detecting the change in the characteristic value when the respective injector is switched off, and checking a fault criterion. The fault criterion is satisfied when the change in the characteristic value for the respective switched-off injector exceeds or undershoots a predetermined amount. The method also includes detecting a defect in the respective injector in response to the fault criterion being satisfied.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: November 28, 2017
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Vitaly Shevchenko, Siegfried Festl, Sebastian Grasreiner
  • Patent number: 9815458
    Abstract: A method (110), a device (10), and a powertrain (70) are provided for the safe operation of a hybrid vehicle (20). The hybrid vehicle has at least one first (30) and one second (40) drive assembly. The drive assemblies in each case drive the hybrid vehicle, alone or jointly in a hybrid type of operation. The first drive assembly is operated using fuel from a fuel tank (50). An amount of fuel in this fuel tank is monitored. If the amount of fuel is smaller than a specifiable value, then a safety operation of the hybrid vehicle is activated. During the safety operation, the output of the second drive assembly is reduced if the hybrid vehicle is driven using a type of operation which negatively influences the driving dynamics of the hybrid vehicle in the case of a failure of the first drive assembly.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: November 14, 2017
    Assignee: Robert Bosch GmbH
    Inventor: Peter Maigler
  • Patent number: 9765720
    Abstract: A method is provided for avoiding incorrect combustion misfire fault detection in an internal combustion engine in a motor vehicle with a dual mass flywheel. In order to detect combustion misfiring, a characteristic variable, which is dependent on the acceleration of the internal combustion engine, is determined continuously during the ongoing operation of the internal combustion engine and compared with a predefined irregular running threshold value. When the irregular running threshold value is exceeded, a combustion misfire is detected, wherein the frequency of detected combustion misfiring, for example at a specific number of crank shaft revolutions, is detected. When a defined frequency threshold is exceeded, a combustion misfire fault detection is activated. When a dual mass flywheel bounce is detected with the simultaneous detection of combustion misfiring, the injection of at least one cylinder is reduced or switched off for a predefined frequency or for a predefined time.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: September 19, 2017
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Manuel Koch, Sandra Kustermann
  • Patent number: 9765710
    Abstract: The present invention provides for predicting peak cylinder temperatures above which knock in an engine may become more frequent and then provides one or more actuation approaches to reduce the knock of the engine while maintaining engine performance. The actuation approaches of the present invention include one or more of direct injection, engine gas recirculation, and spark retarding, where the application of one or more the actuation approaches is determined based upon using operational and engine characteristic inputs as well as modeling and estimation values as inputs in a feedforward control methodology.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: September 19, 2017
    Assignee: Cummins Inc.
    Inventor: David Stroh
  • Patent number: 9752528
    Abstract: A method and an arrangement for operating an internal combustion engine. In the method, an injection start is calculated by a filter, starting from a standard injection start and at least one of the filter parameters is selected in accordance with the operating mode of the internal combustion engine.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: September 5, 2017
    Assignee: MTU FRIEDRICHSHAFEN GMBH
    Inventor: Armin Dölker
  • Patent number: 9719433
    Abstract: The gross output power of an engine distributed to at least one main machine and one auxiliary machine. A total load value calculation unit calculates the value of the lost power consumed by the auxiliary machine, and calculates the value of total load power by adding to this lost power value a target value for the main output power of the engine to be distributed to the main machine. A gross output value control unit controls the value of the gross output power so that the value of the gross output power becomes equal to the value of the total load power when the value of the total load power is less than a predetermined threshold value, and so that the value of the gross output power becomes equal to the above described threshold value when the value of the total load power is greater than the threshold value.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: August 1, 2017
    Assignee: KOMATSU LTD.
    Inventors: Masaru Shizume, Yukio Sugano
  • Patent number: 9683508
    Abstract: A system comprising an air actuator configured to control air delivered to an engine; a fuel actuator configured to control fuel delivered to an engine; and a controller configured to: actuate the air actuator in response to a first torque signal; and actuate the fuel actuator in response to a second torque signal.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: June 20, 2017
    Assignee: Cummins Inc.
    Inventors: David Stroh, Govindarajan Kothandaraman, Carlos Alcides Lana, Karim A. Azizou
  • Patent number: 9638129
    Abstract: A controller for a gas engine includes a cycle detection unit 67 configured to detect a crank angle period of a single combustion cycle of an engine including a plurality of cylinders based on a crank angle detection value inputted from a crank angle detector 75, a misfire detection unit 69 configured to detect a misfire in a combustion chamber 37 based on an in-cylinder pressure detection value inputted from the in-cylinder pressure detector 59, and a simultaneous misfire determination unit 73 configured to determine a simultaneous misfire of more than one cylinder when a total number of cylinders where the misfire is detected in the single combustion cycle by the misfire detection unit 69 is not less than a preset threshold value of a cylinder number. The fuel gas to all of the cylinders is shut off when the simultaneous misfire of more than one cylinder in the single combustion cycle is determined by the simultaneous misfire determination unit 73.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: May 2, 2017
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Hideki Nishio, Junnosuke Andou
  • Patent number: 9604655
    Abstract: Various methods and systems are provided for initiating and executing a fuel routine for reducing a pressure of gaseous fuel in a gaseous fuel system for a vehicle. In one embodiment, a control system for a vehicle comprises a controller operable to: determine a required pressure relief event is needed for a fuel tank on a fuel tender coupled to a first vehicle; and communicate a request to reduce a pressure of a gaseous component disposed within the fuel tank or adjust operation of a first engine on board the first vehicle to consume the gaseous component.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: March 28, 2017
    Assignee: General Electric Company
    Inventor: Kevin Michael Fisher
  • Patent number: 9481370
    Abstract: A method of operating a vehicle. The vehicle includes an engine. The method including determining if the engine is to be operated at idle and determining a current mode of operation of the vehicle. The current mode of operation is any one of a plurality of modes of operation including at least a first mode and a second mode. The method includes, if the engine is to be operated at idle, operating the engine at a first idle speed if the current mode of operation of the vehicle is the first mode of operation; and operating the engine at a second idle speed if the current mode of operation of the vehicle is the second mode of operation. The first idle speed is greater than the second idle speed.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: November 1, 2016
    Assignee: BOMBARDIER RECREATIONAL PRODUCTS INC.
    Inventors: Michel Bernier, Pierre-Luc Milot
  • Patent number: 9470167
    Abstract: A system and method for measuring fuel pressure decreases in a fuel accumulator of an internal combustion engine is provided. The system includes the ability to stop a fuel flow to a fuel accumulator of the engine. Pressure signals are transmitted to a control system of the engine until the fuel pressure in the fuel accumulator drops by a predetermined amount, at which time fuel flow is re-enabled. The pressure signals are then analyzed to determine the amount or quantity of fuel delivered by each fuel injector. The system and method maintain engine and emissions performance by limiting the amount of fuel pressure decrease in the fuel accumulator.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: October 18, 2016
    Assignee: Cummins Inc.
    Inventors: David M. Carey, Donald J. Benson, Sanjay Manglam, Paul V. Moonjelly