Controlling Fuel Quantity Patents (Class 701/104)
  • Patent number: 10970669
    Abstract: Some embodiments provide a system to facilitate transaction processing associated with an industrial asset supply chain having a first entity and a second entity. A first entity computer processor may retrieve, from a first entity database, information associated with pre-delivery data about the industrial asset. The first entity computer processor may then record pre-delivery data about the industrial asset via a secure, distributed transaction ledger. A second entity computer processor may retrieve, from a second entity database, information associated with a post-delivery event involving the industrial asset. The second entity computer processor may then record post-delivery event data about the industrial asset via a secure, distributed transaction ledger. The post-delivery event data might indicate, for example, that the industrial asset has been delivered, has been installed, is working properly, has been used, etc.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: April 6, 2021
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Walter Charles Yund, Patricia Denise Mackenzie, Joseph James Salvo, John William Carbone, Benjamin Edward Beckmann, Dan Yang, Peter Koudal
  • Patent number: 10968856
    Abstract: When an incremental amount of a steering angle exceeds a reference incremental amount, an ECU 60 executes vehicle attitude control of reducing an output torque of an engine, and, in a given operating range, drives a spark plug 16 in a manner allowing an air-fuel mixture to be self-ignited at a given timing, thereby executing SPCCI combustion. When there is a request for an additional deceleration from the vehicle attitude control (#12: YES), and the SPCCI combustion is performed (#13: YES), the ECU 60 executes fuel amount reduction control of reducing the amount of fuel to be supplied into a cylinder 2 (#14), so as to attain torque reduction for the vehicle attitude control. On the other hand, when the SPCCI combustion is not performed (#13: NO), the ECU 60 executes ignition retardation control of retarding an ignition timing of the spark plug 16 (#15).
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: April 6, 2021
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Shinji Takayama, Takeatsu Ito, Michio Ito, Kenko Ujihara, Daisaku Ogawa, Daisuke Umetsu
  • Patent number: 10954880
    Abstract: Methods and systems are provided for controlling fuel injection to cylinders of an engine in a vehicle. In one example, a method comprises monitoring an electrical energy profile associated with a fuel injector that has been commanded to inject a predetermined amount of a fuel into an engine cylinder, inferring a fuel injection pressure based on the electrical energy profile, and controlling a subsequent fuel injection based on the inferred fuel injection pressure. In this way, fuel injection may be controlled without relying on a pressure sensor in a fuel rail that supplies fuel to the fuel injector, under conditions where the fuel rail does not include the pressure sensor or where the pressure sensor is degraded.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: March 23, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Joseph Lyle Thomas, Ross Dykstra Pursifull
  • Patent number: 10934991
    Abstract: The invention provides an internal combustion engine combustion state detecting device such that ascertaining a combustion state using ionic current detection is carried out accurately over a wide operating range of an internal combustion engine. The internal combustion engine combustion state detecting device includes a spark plug that has a central electrode and a grounding electrode opposing across a gap, and a discharge stopping-induced current detecting device that estimates an induced current caused by a stopping of a spark discharge generated in the gap between the central electrode and the grounding electrode, wherein an ionic current detection threshold is set to a threshold value that is not affected by the induced current using the induced current estimated by the discharge stopping-induced current detecting device.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: March 2, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Toshifumi Nakamura, Takahiko Inada
  • Patent number: 10920694
    Abstract: Various methods and systems are provided for an engine capable of receiving liquid and gaseous fuel. In one example, cylinder misfire may be identified based on a misfire monitor. The misfire monitor may detect misfire based on signals from a crankshaft sensor.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: February 16, 2021
    Assignee: TRANSPORTATION IP HOLDINGS, LLC
    Inventors: Paul Lloyd Flynn, Aninda Bhattacharya, Ganesasubramanian Murugesan, Milan Palinda Karunaratne, Daniel Cullen
  • Patent number: 10900428
    Abstract: A controller for an internal combustion engine includes a processing circuit that performs a dither control process on condition that a temperature increase request of a catalyst is made. The processing circuit operates fuel injection valves so that during the dither control process, one or more cylinders are lean combustion cylinders in a first period and another one or more cylinders are rich combustion cylinders and so that the average value of an exhaust gas-fuel ratio is a target air-fuel ratio in a second period including the first period. The dither control process is restricted in a manner that, on condition that the rich process is performed, the degree of richening of the richest exhaust gas-fuel ratio of exhaust gas-fuel ratios in the cylinders is reduced.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: January 26, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuki Nose, Keiichi Myojo, Yoshiyuki Shogenji, Eiji Ikuta
  • Patent number: 10895207
    Abstract: A method of operating an engine assembly is provided. The engine assembly comprises an engine and a turbocharger assembly, wherein a control parameter of the turbocharger assembly is controllable in order to control a level of boost provided by the turbocharger assembly. The method comprises determining a desirable pressure limit of exhaust gases upstream of a turbine of the turbocharger assembly, predicting a desirable limit value of the control parameter to be applied to the turbocharger assembly in order to achieve the desirable pressure limit, determining an error in the desirable limit value of the control parameter, adjusting the desirable limit value of the control parameter based on the error, and controlling the operation of the turbocharger assembly such that the adjusted limit value is not exceeded.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: January 19, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Jon Dixon, Nicholas Michael Parisi, Jeffrey B. Schneyer
  • Patent number: 10882530
    Abstract: A vehicle allocation system includes for allocating, through autonomous driving, an allocation vehicle selected from a plurality of selection target vehicles is provided. Each of the plurality of selection target vehicles includes an electronic controller configured to perform hydraulic pressure control learning and autonomous driving control of a power transmission device in which a plurality of shift stages are established by combination of a plurality of hydraulic engaging devices. The at least one processing circuitry is configured to select a vehicle in which a progress degree of the hydraulic pressure control learning is low as the allocation vehicle from the selection target vehicles, based on progress degrees of the hydraulic pressure control learning before the vehicle allocation.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: January 5, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Kenta Kumazaki
  • Patent number: 10843697
    Abstract: A vibration damping control apparatus which has a control unit that calculate a pitch damping driving torque based on a pitch angular velocity of a vehicle body, and control an engine based on at least the pitch damping driving torque. The control unit stores a vehicle speed corresponding to a phase difference of ?180° in a relationship between a phase difference and a vehicle speed as an upper limit reference vehicle speed, the relationship being derived by obtaining phase characteristic of a wheelbase filter function for various vehicle speeds and obtaining a relationship between the phase difference of vertical displacements of the vehicle body at positions of front and rear wheels and a vehicle speed with respect to a pitch resonance frequency of the vehicle, and reduces the pitch damping driving torque when a vehicle speed is not higher than the upper limit reference vehicle speed.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: November 24, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yanqing Liu
  • Patent number: 10845270
    Abstract: A method for diagnosing an engine in a vehicle, the method comprising: initiating a diagnostic test of the engine, disabling a cylinder of the engine, measuring a parameter indicative of performance of the engine, re-enabling the cylinder, comparing the parameter to reference data, assessing a status of the cylinder based on the comparison, and generating a diagnostic result based on the status of the disabled cylinder.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: November 24, 2020
    Assignee: Progress Rail Locomotive Inc.
    Inventors: Gregory R. Kupiec, Dennis J. Melas
  • Patent number: 10760996
    Abstract: A system for commissioning a machine such as an internal combustion engine includes commissioning probes, and a user interface having a computer receiving test data from the commissioning probes. The computer is structured to store a commissioning profile for the machine on a memory, and to populate the commissioning profile based on a compensation factor that depends on a difference between a performance response of ancillary equipment connected with the machine and an expected response. The computer outputs a commissioning suitability signal based on comparing the commissioning profile to a target profile.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: September 1, 2020
    Assignee: Caterpillar Inc.
    Inventors: Perry Converse, Michael Coppinger, Yanchai Zhang
  • Patent number: 10738728
    Abstract: A controller for an internal combustion engine includes processing circuitry. The processing circuitry is configured to execute an estimation process that estimates a density parameter of fuel in an upper layer portion of a delivery pipe and a density parameter of fuel in a lower layer portion of the delivery pipe and an operation process that includes acquiring a density parameter of the fuel injected from a fuel injection valve and operating an operation unit of the internal combustion engine based on the acquired density parameter. The estimation process includes a process that assumes that when the density of the fuel flowing into the delivery pipe is high, a greater proportion of the fuel flowing into the delivery pipe flows into the lower layer portion than when the density of the fuel flowing into the delivery pipe is low.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: August 11, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryusuke Kuroda, Masahiro Ozeki, Masanao Idogawa
  • Patent number: 10731543
    Abstract: A method of determining whether a block heater has been used prior to starting an internal combustion engine includes monitoring the temperature with time of the intake air subsequent to the start of the engine. The method also includes determining whether there is a subsequent drop in the temperature after starting. If a temperature drop is determined, a parameter of the temperature drop with time is determined. If the parameter becomes larger than a predetermined threshold, block heater use is indicated.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: August 4, 2020
    Assignee: DELPHI AUTOMOTIVE SYSTEMS LUXEMBOURG SA
    Inventors: Eduardo Maiello, Erik Schoof, Loic Gandolfi, Luca Tascedda
  • Patent number: 10669965
    Abstract: Various embodiments may include a method for operating an internal combustion engine comprising: measuring pressure oscillations assignable to a cylinder in the inlet tract at a defined operating point during normal operation; generating a corresponding pressure signal; determining a corresponding crankshaft phase angle; calculating an injection signal component caused by fuel injection by subtracting a reference base pressure oscillation signal; determining a signal phase position and a signal amplitude of the injection signal component; determining an injection start time; determining an injection quantity on the basis of the signal amplitude and reference amplitudes; and adapting operation of the internal combustion engine based on the determined injection quantity.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: June 2, 2020
    Assignee: CONTINENTAL AUTOMOTIVE GMBH
    Inventors: Tobias Braun, Josef Kainz
  • Patent number: 10598117
    Abstract: An injector driving device includes a control circuit of a booster circuit that charges a capacitor by repeatedly switching a booster switch ON/OFF during a voltage boost control to cause a reverse voltage in a coil, and stops the voltage boost control upon determining that a capacitor voltage has reached a corrected target value. The control circuit detects a peak value of the capacitor voltage during an OFF period of the boost switch. The control circuit also detects a capacitor voltage as an ON value during the subsequent ON period of the booster switch. A difference between the peak voltage and the ON value of the capacitor is calculated, and a post-correction target value is set by adding the difference to a reference value of a target value.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: March 24, 2020
    Assignee: DENSO CORPORATION
    Inventor: Hiroki Nambu
  • Patent number: 10539081
    Abstract: An internal-combustion engine control apparatus is obtained which can accurately perform the control toward an output target value by calculating an exhaust gas temperature more accurately, and eliminating discrepancies of a turbine flow-rate and a waste-gate-valve opening-degree. In the apparatus, a thermal efficiency calculation unit calculates thermal efficiency based on a combination in any of ignition timing, charging efficiency, an air-fuel ratio and an exhaust gas recirculation (EGR) ratio being change factors in thermal efficiency of the internal-combustion engine; an exhaust-gas loss calculation unit calculates exhaust gas loss based on thermal efficiency calculated by the thermal efficiency calculation unit, and on a combination in any of the change factors of the exhaust gas loss; and an exhaust port temperature calculation unit calculates an exhaust gas temperature at an exhaust port portion based on exhaust gas loss calculated by the exhaust-gas loss calculation unit.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: January 21, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tatsuhiko Takahashi, Takahiko Ono
  • Patent number: 10519882
    Abstract: An internal combustion engine comprises a fuel injector, a spark plug, an evaporated fuel purge device purging evaporated fuel in the fuel tank into an intake passage, and a control device. The control device can perform spark assist control for sequentially injecting premix-forming fuel and injecting ignition assist fuel from the fuel injector, while controlling the fuel injector and spark plug so as to make an air-fuel mixture formed by the injection of ignition assist fuel burn by the spark plug by flame propagation and to make the remaining fuel burn using the heat released by the flame propagation combustion by premixed compression self-ignition, and the control device makes the injection amount of premix-forming fuel decrease without changing the injection amount of ignition assist fuel when purging evaporated fuel into the intake passage by the evaporated fuel purge device compared to when not purging it.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: December 31, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Satoshi Tsuda
  • Patent number: 10487759
    Abstract: A fuel injection controller for an internal combustion engine selects as the injection mode either single injection or split injection, counts, based on a drive current detection signal, which indicates that a drive current is generated to be fed to the direct injector, the number of occurrences of the drive current in one combustion cycle as a number-of-injections count value, and determines, based on the number-of-injections count value, whether the combustion state in the cylinder is satisfactory. The fuel injection controller determines that the combustion state in the cylinder is unsatisfactory if the number-of-injections count value in one combustion cycle is one when catalyst warm-up control is being performed with the temperature of the engine being lower than or equal to a predetermined temperature.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: November 26, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuki Ikejiri, Yoshihisa Oda
  • Patent number: 10467323
    Abstract: There is provided a method of updating a setting value of a variable parameter, the method including: obtaining a time-series data of control input and a time-series data of control output observed in control with a controller; calculating a value of the variable parameter which minimizes an output value of an evaluation function based on the obtained time-series data of the control input and the control output; and updating the setting value of the variable parameter to the calculated value of the variable parameter. The evaluation function includes a first function part in which a first norm or a second norm changes depending on the value of the variable parameter, and a second function part of which specific frequency band has an amount, by which the output value of the evaluation function is increased, larger than that of any other frequency band.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: November 5, 2019
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Eisuke Takahashi
  • Patent number: 10458311
    Abstract: Internal combustion engine comprising at least one cylinder and a piston supported for repeated reciprocal movement in the cylinder so as to define a combustion chamber of an engine bore diameter A-A, the internal combustion engine further comprising an ignition device arranged in said cylinder having an igniter portion and an fuel injector which are both arranged in a pre-chamber, wherein the pre-chamber comprises a plurality of orifices for providing fluid communication between said pre-chamber and the combustion chamber, and wherein the plurality of orifices are of an overall orifice area so that the ratio between the overall orifice area and the engine bore diameter A-A ranges from 0.01 mm to 0.2 mm.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: October 29, 2019
    Assignee: MAHLE Powertrain LLC
    Inventors: Hugh Blaxill, Michael Bunce
  • Patent number: 10458358
    Abstract: The invention realizes fuel microinjection volume correction with high degrees of accuracy, stability, and reliability regardless of a configuration of a transmission.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: October 29, 2019
    Assignee: Bosch Corporation
    Inventors: Atsushi Hoshino, Shouta Tashiro
  • Patent number: 10436144
    Abstract: A control device for an internal combustion engine including an in-cylinder injection fuel injection valve, and a port injection fuel injection valve, has a controller that controls injection amount ratios of the in-cylinder injection fuel injection valve and the port injection fuel injection valve in accordance with a driving condition of the engine. A fuel cut is performed at a predetermined deceleration of the internal combustion engine. The injection amount ratio of the in-cylinder injection fuel injection valve is corrected to be decreased at a fuel cut recovery at which a fuel supply is restarted from the fuel cut state, during a predetermined period from the start of the recovery.
    Type: Grant
    Filed: November 27, 2014
    Date of Patent: October 8, 2019
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Rina Kamio, Tomoyoshi Date, Daisuke Tanaka, Futoshi Yoshimura, Ryo Uchida
  • Patent number: 10428784
    Abstract: Methods and systems are provided for improving fuel usage while addressing knock by adjusting the use of spark retard and direct injection of a knock control fluid based on engine operating conditions and the composition of the injected fluid. One or more engine parameters, such as EGR, VCT, boost, throttle position, and CMCV, are coordinated with the direct injection to reduce torque and EGR transients.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: October 1, 2019
    Assignee: Ford Global Technologies, LLC
    Inventor: Thomas G. Leone
  • Patent number: 10422290
    Abstract: Systems and methods for controlling an engine airpath include receiving, at a supervisory controller, an engine speed corresponding to a present engine speed, a fuel target corresponding to a request for torque from a driver and one or more state estimates generated by an estimator. The supervisory controller predicts, over a prediction horizon, a constraint violation in response to the engine speed, the fuel target, and the one or more state estimates using a prediction model, adjusts an EGR rate target to a modified value, when the constraint violation is predicted, and maintains the EGR rate target at a nominal value when the constraint violation is not predicted. A nonlinear predictive controller generates one or more actuator commands based on the EGR rate target, where the one or more actuator commands control an engine actuator such that an EGR rate of the engine airpath tracks the EGR rate target.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: September 24, 2019
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., The Regents of the University of Michigan
    Inventors: Dominic Liao-McPherson, Ilya Kolmanovsky, Mike Huang, Shinhoon Kim
  • Patent number: 10393054
    Abstract: A controller of an engine performs a failure diagnosis process for an injection valve. The failure diagnosis process increases a misfire count of the engine when a variation in rotation of the engine is equal to or greater than a predetermined variation in every predetermined cycle, and determines that the injection valve has a failure when the misfire count is equal to or greater than a first predetermined number of times over a predetermined time period. The controller determines that the multi-cylinder engine is in a predetermined load operation cycle if a volume efficiency of the multi-cylinder engine is less than a reference value, and the controller determines whether continuation of the injection mode is needed based on a comparison of the misfire count and a second predetermined number of times, wherein the second predetermined number of times is less than the first predetermined number of times.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: August 27, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hitoki Sugimoto
  • Patent number: 10378457
    Abstract: An engine speed control system for an internal combustion engine includes a throttle, and a sensor that monitors a parameter indicative of pressure or density of fuel and air in an inlet manifold of the engine. The electronic control unit is coupled with the throttle and the sensor and structured to calculate a target mass flow through the throttle, a feedforward control term based on the target mass flow, and a feedforward control term based on data produced by the sensor. The electronic control unit is further structured to vary a position of the throttle based on the feedforward and feedback control terms to adjust a mass flow through the throttle toward the target mass flow. The control system is applicable in throttle governed as well as fuel governed systems.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: August 13, 2019
    Assignee: Caterpillar Inc.
    Inventors: Karthik Jayasankaran, Arvind Sivasubramanian
  • Patent number: 10337443
    Abstract: Methods and systems for evaluating whether or not a fuel amount that is greater than a threshold has been release to an engine via fuel injectors when the fuel injectors are commanded off are presented. In one example, an oxygen sensor is activated and engine cranking is prevented until a pumping current of the oxygen sensor is proportionate to a concentration of oxygen sensed via the oxygen sensor so that released fuel may be observed during engine starting.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: July 2, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Joseph Ulrey, Michael Uhrich, Ross Pursifull, Steven Schwochert
  • Patent number: 10309332
    Abstract: When the air fuel ratio dither control is carried out, an air fuel ratio of a mixture in each of one or more lean cylinders and one or more rich cylinders is controlled in a feedback manner based on an average value of a detected value of an air fuel ratio sensor, so that an average value of an air fuel ratio of exhaust gas flowing into the three-way catalyst becomes a predetermined target exhaust gas air fuel ratio. At this time, the air fuel ratio dither control is carried out, by setting at least a cylinder with the highest gas impingement intensity in a cylinder group of an internal combustion engine as the one or more lean cylinders.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: June 4, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kazuya Suzuki, Koichi Hoshi
  • Patent number: 10215121
    Abstract: A method and an apparatus for heating a lambda detector of mild hybrid electric vehicle may include determining whether a measured value of the lambda detector is equal to or greater than a first reference value or is equal to or less than a second reference value when an overrun condition is satisfied; determining a first difference value between the measured value of the lambda detector and the first reference value and a second difference value between the measured value and the second reference value when the measured value of the lambda detector is equal to or greater than the first reference value or is equal to or less than the second reference value; determining a heating temperature and time according to the first difference value and the second difference value; and heating the lambda detector according to the determined heating temperature and time when a coasting condition is satisfied.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: February 26, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Hwa Yong Jang
  • Patent number: 10161347
    Abstract: Methods and systems are providing for improving zero flow lubrication (ZFL) of a high pressure fuel pump coupled to direct fuel injectors via a direct injection fuel rail. A ZFL transfer function for the fuel pump is learned while fuel is at non-nominal fuel bulk modulus conditions and corrected for variations from a nominal fuel bulk modulus estimate. When zero flow lubrication of the pump is requested, the pump is operated with a duty cycle based on the learned transfer function and an instantaneous estimate of the fuel bulk modulus to compensate for differences in fuel condition from the nominal fuel bulk modulus estimate.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: December 25, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Hao Zhang, Mark Meinhart
  • Patent number: 10156194
    Abstract: Methods and systems are provided for estimating exhaust gas recirculation (EGR) flow in an engine including an EGR system. In one example, a method may include operating the EGR system in an open loop feed forward mode based on an intake carbon di oxide sensor output above a threshold engine load and/or when a manifold absolute pressure (MAP) is above a threshold pressure, and operating the EGR system in a closed loop feedback mode based on a differential pressure sensor output when the engine load decreases below the threshold load and/or when the MAP decreases below the threshold pressure.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: December 18, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Freeman Carter Gates, Kirk Pulay, Stephen George Russ
  • Patent number: 10113500
    Abstract: When a specified learning execute condition is established, the high-pressure pump is stopped so that the fuel pressure in the high pressure fuel passage is made equal to the fuel pressure in the low pressure fuel passage. A low pressure fuel control is executed to control a driving voltage of the low-pressure pump based on the operational characteristic of the low-pressure pump. A driving voltage of the low-pressure pump is gradually corrected so that the difference between the detected high fuel pressure and a target low fuel pressure becomes small. A driving voltage correcting amount is learned as the control error of the low pressure fuel control. The driving voltage correction amount is stored as the learning correction amount, and the driving voltage of the low-pressure pump is corrected by means of the learning correction amount.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: October 30, 2018
    Assignee: DENSO CORPORATION
    Inventor: Toshifumi Hayami
  • Patent number: 10100772
    Abstract: A fuel injection control device controls a spark-ignition engine of an intra-cylindrical direct fuel injection type. The engine includes a fuel injection valve configured to directly inject a fuel to an interior of a cylinder, and a spark plug configured to ignite, by a spark, an air-fuel mixture inside the cylinder. When the injected fuel collides with a portion in a predetermined low-temperature state, the fuel is injected while changing a fuel injection condition under predetermined operating conditions so as to restrain a fuel spray from keeping colliding with the same position continuously.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: October 16, 2018
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Takayoshi Kodama, Takao Inoue, Ryo Uchida
  • Patent number: 10065625
    Abstract: An ECU is applied to a hybrid vehicle that is equipped with an internal combustion engine and a second motor-generator, which are configured to output a driving force for running. The hybrid vehicle is configured to run with the internal combustion engine in intermittent operation. Also, the ECU is configured to calculate an amount of dilution water that is mixed into oil in the internal combustion engine to dilute the oil. The ECU is configured to operate the internal combustion engine when the amount of the dilution water becomes larger than a first threshold.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: September 4, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akihiro Kawamura, Shinji Matsuo, Chikara Inoue, Yukinori Ohta
  • Patent number: 10059330
    Abstract: A system for improving performance or efficiency of operation of a vehicle. The system includes a sensor configured to detect current vehicle speed data and current vehicle slope data. The system includes a pedal control unit configured to detect current pedal position data. The system includes an electronic control unit (ECU) configured to determine expected driving power demand based on current vehicle speed data and vehicle slope data. The ECU is configured to determine detected driving power demand based on current pedal position data. The ECU is configured to detect a drafting condition when the expected driving power demand exceeds the detected driving power demand. The ECU is configured to adjust, when the drafting condition is detected, at least one of a chassis control setting, an engine control setting, a transmission control setting, or a hybrid control setting to improve performance or efficiency of operation of the vehicle.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: August 28, 2018
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventors: Geoffrey D. Gaither, Takanori Aoki
  • Patent number: 10012204
    Abstract: Systems and methods of controlling operation of a vehicle engine are provided. For instance, one example aspect of the present disclosure is directed to determining a spark timing associated with a combustion engine. For instance, a combustion phasing target to be implemented by a combustion engine can be received. A spark timing associated with the combustion engine can be determined based at least in part on the combustion phasing target. The spark timing can be determined based at least in part on an optimization comprising one or more iterations determined during an engine cycle. The spark timing is determined based at least in part on a combustion phasing prediction model determined based at least in part on at least one of laminar flame speed, residual gas mass, or turbulent intensity.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: July 3, 2018
    Inventors: Shu Wang, Robert Gary Prucka, Hussein Dourra, Michael Prucka, Qilun Zhu
  • Patent number: 9957908
    Abstract: A method for adapting valve timings of an internal combustion engine, includes selecting multiple instantaneous operating points of the internal combustion engine by comparison to specified operating points, ascertaining a cylinder charge of at least one cylinder of the internal combustion engine at each of the selected operating points, ascertaining a charge error for each selected operating point from the difference of each ascertained cylinder charge from an expected value of the cylinder charge for the particular operating point, comparing the ascertained charge errors to expected charge errors, and ascertaining an adaptation value of the valve timings from the result of the comparison.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: May 1, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Martin Brandt, Christian Linder, Ulrich Bauer, Markus Deissler, Martin Stephani
  • Patent number: 9945339
    Abstract: In the method provided herein, quantities of fuel are determined during a direct injection of a motor vehicle. In this connection, within one work cycle, test injections are carried out in two cylinders of an internal combustion engine of the motor vehicle during overrun phases, speed oscillations of moved masses of the cylinders are measured and a relative difference in quantity of the fuel quantity of the test injections within one work cycle is determined from the speed oscillations. By evaluating a relative signal between the test injections within one work cycle in the two cylinders, an intrinsic dependence of the drive train of the quantity of fuel signal is compensated.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: April 17, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Stefan Bollinger, Joachim Palmer, Andreas Gessler
  • Patent number: 9903286
    Abstract: A method of calculating a nitrogen oxide (NOx) mass reduced from a lean NOx trap (LNT) during regeneration includes calculating a C3H6 mass flow used to reduce the NOx among a C3H6 mass flow flowing into the LNT of an exhaust purification device, calculating a NH3 mass flow used to reduce the NOx among a NH3 mass flow flowing into the LNT, calculating a reduced NOx mass flow based on the C3H6 mass flow used to reduce the NOx and the NH3 mass flow used to reduce the NOx, and calculating the reduced NOx mass by integrating the reduced NOx mass flow over a regeneration period.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: February 27, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventor: In Soo Jung
  • Patent number: 9863357
    Abstract: A method of controlling fuel injection in an internal combustion engine is presented. For each injector event a drive signal is applied to the fuel injector, wherein said drive signal has a pulse width, which is calculated on the basis of a master performance function and of a minimum delivery pulse corresponding to the minimum pulse width required for the injector to open. The minimum delivery pulse is determined from the voltage across the terminals of the fuel injector's electromagnetic actuator, by comparing the duration of a segment of the voltage second derivative to a predetermined threshold value.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: January 9, 2018
    Assignee: DELPHI AUTOMOTIVE SYSTEMS LUXEMBOURG SA
    Inventor: Abdelhamid Bouaita
  • Patent number: 9841412
    Abstract: A method for determining the volatility of fuel in a fuel storage system which entails: determining that a refueling event has occurred (210) and that the fuel storage system has subsequently been sealed (220); performing a first pressure measurement (230) at a first time after the determining; performing a second pressure measurement (240) at a second time, the second time occurring after the first time; determining a pressure evolution rate (250) from the first pressure measurement at the first time and the second pressure measurement at the second time; and deriving an estimation (260) of the volatility of the fuel from the pressure evolution rate.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: December 12, 2017
    Assignee: Plastic Omnium Advanced Innovation and Research
    Inventors: Bjorn Criel, David Hill, Antoine Chaussinand
  • Patent number: 9823233
    Abstract: A system and method for determining the octane rating of a fuel from a plurality of measurements at a test engine. The measurements may include a plurality of measurements regarding individual knock events, from which waveform attributes regarding the knock events can be determined and used in the calculation of the octane rating. The measurements may also include one or more environmental measurements, such as temperature, humidity, exhaust oxygen, etc., according to which the octane rating may be normalized or that may otherwise be applied into the calculation of the octane rating. The measurements may also include one or more engine property measurements corresponding to the condition of the test engine, according to which the octane rating may be normalized or that may otherwise be applied into the calculation of the octane rating, and that may be used to advise of maintenance events.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: November 21, 2017
    Inventor: Chad Alan Michaelis
  • Patent number: 9786181
    Abstract: Autonomous diesel vehicles and control methods thereof are disclosed. An autonomous vehicle may include a peripheral information collecting unit configured to collect peripheral information necessary for autonomous travelling through an image camera and a laser scanner, a main control unit configured to control the autonomous travelling with reference to the peripheral information collected by the peripheral information collecting unit, a passenger monitoring unit configured to check whether a passenger exists inside the vehicle through a sensor and transmit a result of the check to the main control unit, and an engine control unit configured to control driving of an engine and injection of fuel of an injector according to a control instruction of the main control unit. When the passenger is inside the vehicle, the main control unit performs a pilot injection control, and when the passenger is not inside the vehicle, the main control unit omits the pilot injection control.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: October 10, 2017
    Assignee: Hyundai Motor Company
    Inventors: Won Jin Jo, Hyoung Geun Kwon, Tae Won Lim, Changjae Lee, Seokyoul Yang
  • Patent number: 9784779
    Abstract: A sensor system having a current interface includes a supply and current interface, an electronic control unit and an enhanced initialization sensor. The supply and current interface is configured to receive a supply voltage. The electronic control unit is coupled to the supply and current interface. The enhanced initialization sensor is coupled to the supply and current interface. The enhanced initialization sensor is configured to initialize the supply and current interface at a suitable current level to mitigate erroneous information.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: October 10, 2017
    Assignee: Infineon Technologies AG
    Inventors: Christoph Schroers, Christof Bodner, Simon Hainz
  • Patent number: 9759144
    Abstract: Provided is an engine which is provided with an EGR device, wherein: an actual intake/exhaust gas pressure ratio ?1 of an intake-gas pressure P1 to an exhaust-gas pressure P2 is calculated from the detected exhaust-gas pressure P2 and the detected intake-gas pressure P1; an estimated intake/exhaust gas pressure ratio ?2 of the intake-gas pressure P1 to the exhaust-gas pressure P2 is calculated from an engine rotational frequency N, and a fuel injection amount F; and, in cases when the actual intake/exhaust gas pressure ratio ?1 is less than a prescribed value ?0, an EGR gas weight Megr is calculated based on the actual intake/exhaust gas pressure ratio ?1, and in cases when the actual intake/exhaust gas pressure ratio ?1 is equal to or more than the prescribed value ?0, the EGR gas weight Megr is calculated based on the estimated intake/exhaust gas pressure ratio ?2.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: September 12, 2017
    Assignee: Yanmar Co., Ltd.
    Inventors: Atsuhito Iwase, Yusuke Amari
  • Patent number: 9726089
    Abstract: A method and system for perform a charge exchange in internal combustion engine comprising an additional intake and exhaust valve lifts performed during positive pressure gradients between the intake and exhaust systems to reducing scavenging losses and increase torque during low engine speeds.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: August 8, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Joerg Kemmerling, Franz Arnd Sommerhoff, Helmut Matthias Kindl, Vanco Smiljanovski, Claudia Katharina Herudek, Andreas Kuske
  • Patent number: 9702313
    Abstract: An engine system may include a injectors, and an engine control unit (ECU) having a number of pins coupling to the injectors. The ECU may include an individual measurement circuit coupled to each pin, with each individual measurement circuit providing a respective individual output corresponding to the pin coupled to the measurement circuit. The ECU may also include subtraction circuits, each subtraction circuit having a respective pair of inputs and providing an output representative of a difference between respective input values appearing at the pair of inputs. The ECU may also include cross-point switches coupled between the measurement circuits and the subtraction circuits, and may determine the voltage difference between any two pins by selectively coupling the respective output of each of the two individual measurement circuits coupled to the two pins to a respective input of the pair of inputs of any subtraction circuit.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: July 11, 2017
    Assignee: NATIONAL INSTRUMENTS CORPORATION
    Inventor: Matthew Viele
  • Patent number: 9664096
    Abstract: An electronic control unit executes air-fuel ratio control composed of main feedback correction and sub-feedback correction. The main feedback correction uses an output value of an upstream side sensor in upstream side of a catalyst. The sub-feedback correction uses an output value of a downstream side sensor in downstream side of the catalyst. When there are cylinder-to-cylinder variations in a fuel injection amount of each fuel injection valve, the electronic control unit corrects the fuel injection amount. Each time the degree of the cylinder-to-cylinder variations is lower than or equal to a first predetermined value, the electronic control unit stores the sub-learning value at that point in time as a normal value, and, when the degree of the cylinder-to-cylinder variations is higher than or equal to a second predetermined value, the electronic control unit changes the sub-learning value to the stored normal value.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: May 30, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Kinji Morihiro
  • Patent number: 9657672
    Abstract: A method of monitoring an exhaust gas sensor coupled in an engine exhaust in an engine is provided. The method includes adjusting engine operation responsive to exhaust gas sensor degradation, the degradation identified during deceleration fuel shut-off (DFSO) and compensated based on whether vapor purge operation is occurring in the engine during DFSO.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: May 23, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Adam Nathan Banker, Michael James Uhrich, Imad Hassan Makki, James Michael Kerns
  • Patent number: 9581094
    Abstract: A target air amount for achieving a requested torque is calculated from the requested torque by using a virtual air-fuel ratio. The virtual air-fuel ratio is changed from a first air-fuel ratio to a second air-fuel ratio in response to a condition for switching an operation mode from an operation by the first air-fuel ratio to an operation by the second air-fuel ratio being satisfied. After the virtual air-fuel ratio is changed from the first air-fuel ratio to the second air-fuel ratio, a target air-fuel ratio is switched from the first air-fuel ratio to the second air-fuel ratio. After the virtual air-fuel ratio is changed from the first air-fuel ratio to the second air-fuel ratio, a target valve timing is switched from a first valve timing to a second valve timing.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: February 28, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yusuke Saito, Satoru Tanaka, Satoshi Yoshizaki, Ryutaro Moriguchi, Yosuke Matsumoto, Noriyasu Adachi