Backup Systems, Fail-safe, Failure Indicator Patents (Class 123/479)
  • Patent number: 10546436
    Abstract: A vehicle test system includes a vehicle including at least one electronic device and a gateway configured to determine whether the electronic device is testable, a test device configured to test the electronic device, in which the electronic device includes a controller for controlling an operation of the electronic device, and the gateway is configured to determine whether or not the electronic device is testable in a different manner depending on whether the electronic device includes a separate communication device and transmits a determined result to the test device.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: January 28, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Junbyung Chae, Byeonggeon Jeon
  • Patent number: 10526992
    Abstract: A method to detect and mitigate sensor degradation in an automobile system includes: collecting output signal data from at least one of a sensor and an actuator which is outputting the signal data related to operational parameters of a vehicle system; placing the sensor or the actuator in communication with a fault box used to purposely corrupt the output signal data; analyzing patterns of the output signal data compared to signal data from a nominal operating sensor or actuator using an artificial intelligence program; identifying when a statistical range of the patterns exceeds a first threshold level; and modifying a control signal to change the operational parameters of the vehicle system.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: January 7, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Christopher E. Whitney, Kevin C. Wong, Marcus S. Gilbert, Jeffrey M. Hutmacher
  • Patent number: 10509674
    Abstract: A software component assigning system for a vehicle includes electronic control units connected to a common network in the vehicle, one of the electronic control units being an integrated control electronic control unit which is configured to: acquire a first rank value of each of the electronic control units, the first rank value becoming higher as a probability of occurrence of a malfunction is higher; acquire a second rank value of an additional software component that is additionally arranged in any one of the electronic control units, the second rank value becoming higher as a level of importance; and decide an electronic control unit to arrange the additional software component from among the electronic control units such that the additional software component is arranged in the electronic control unit of which the first rank value is lower as the second rank value of the additional software component is higher.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: December 17, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Satoshi Okamoto, Shogo Sekizawa, Yuta Ochiai, Kosuke Kaji
  • Patent number: 10489141
    Abstract: A relay device is provided. The relay device includes: an acquisition unit acquiring data necessary for an upgrade processing from an upgrading tool, which performs the upgrading processing to an ECU connected to a vehicle-mounted network; a relay unit providing the data, via the vehicle-mounted network, to a target ECU which is subject to the upgrade processing; a suspend instructing unit transmitting, via the vehicle-mounted network, a suspend command which instructs the non-target ECU to shift to a suspend state in which a transmission of other data to the non-target ECU via the vehicle-mounted network is suspended in response to a start of the upgrade processing; and a cancel instructing unit instructing, via the vehicle-mounted network, the non-target ECU to cancel the suspend state when the upgrade processing is completed.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: November 26, 2019
    Assignee: DENSO CORPORATION
    Inventors: Sho Nakamura, Yuzo Harata, Mitsuyoshi Natsume, Masakazu Doi, Naoji Kaneko
  • Patent number: 10443526
    Abstract: An air-fuel ratio sensing device includes a resistor, an A/D converter, a parallel circuit unit, a second switch, a controlling unit, an air-fuel ratio sensing unit, and a deterioration sensing unit. The controlling unit controls to turn off the first switch and controls to turn on the second switch in a first interval, and the controlling unit controls to turn on the first switch and controls to turn off the second switch in a second interval. The air-fuel ratio sensing unit senses an air-fuel ratio based on a converting result of the A/D converter in the first interval. The deterioration sensing unit compares a reference value with a value obtained based on the converting result and senses a deterioration generated in the current sensing circuit unit in the second interval.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: October 15, 2019
    Assignee: DENSO CORPORATION
    Inventors: Tomohiro Kohara, Yoshiyuki Kawase, Kazunori Kurokawa
  • Patent number: 10436138
    Abstract: Methods and systems are provided for indicating a presence or absence of a source of degradation stemming from one of an intake manifold, exhaust system, or engine of an engine system. In one example, a method comprises rotating the engine unfueled and indicating the source of degradation based on both an intake air flow and an exhaust flow, as compared to baseline intake air flow and baseline exhaust flow. In this way, a source of degradation may be pinpointed, which may increase a lifetime of a vehicle engine system, reduce undesired emissions, and which may increase customer satisfaction resulting from shorter time spent on diagnosing such a source of degradation.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: October 8, 2019
    Assignee: Ford Global Technologies, LLC
    Inventor: Aed M. Dudar
  • Patent number: 10337439
    Abstract: The invention relates to a control method for controlling a fuel injection system (10) of an internal combustion engine, wherein, wherein, in a fault situation of the fuel injection system (10), a camshaft angle of a camshaft (34) which drives a pump piston (32) of a high-pressure fuel pump (14) of the fuel injection system (10) is adjusted such that an injection time (tI) of injector valve (42) which injects the fuel from the fuel injection system (10) into a combustion chamber of the internal combustion engine lies in a pressure trough (50) of a pressure oscillation in a high-pressure region (16).
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: July 2, 2019
    Assignee: CPT Group GmbH
    Inventors: Oliver Seegmüller, Tobias Ritsch
  • Patent number: 10273885
    Abstract: A high-pressure pump control device is applied to an internal combustion engine including a high-pressure pump supplied with fuel discharged from a low-pressure pump and an injector supplied with fuel discharged from the high-pressure pump. The high-pressure pump control device includes a prediction unit predicting whether a discharge quantity of the high-pressure pump exceeds a discharge quantity of the low-pressure pump and a restricting unit executing a discharge quantity restriction control to restrict a discharge quantity of the high-pressure pump not to exceed a predetermined value when the prediction unit predicts that a discharge quantity of the high-pressure pump exceeds a discharge quantity of the low-pressure pump.
    Type: Grant
    Filed: May 7, 2016
    Date of Patent: April 30, 2019
    Assignee: DENSO CORPORATION
    Inventor: Yasuo Hirata
  • Patent number: 10270482
    Abstract: An SDR system and method that intentionally illuminates aircraft systems with RF energy having specific characteristics (e.g., frequency, power, waveform, directionality, duration, etc.) are provided. The aircraft systems act as non-linear mixers and emit non-linear RF energy. A receiver receives the RF energy response and generates an RF energy representation that is correlated to a database of baseline responses. A correlation response between the received RF energy representation and any one of the baseline responses from the database provides an indication of the aircraft system status.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: April 23, 2019
    Assignee: Raytheon BBN Technologies Corp.
    Inventors: John Dishon, Joshua N. Edmison, John-Francis Mergen, Zachary Leuschner, Kerry Wood, Laurie Waisel, Tyler Shake
  • Patent number: 10260940
    Abstract: An electronic device may have control circuitry and input-output components. The input-output components may include audio components, sensors, and other devices. A proximity sensor may supply the control circuitry with proximity sensor data. The control circuitry may adjust the audio components or take other suitable action in response to proximity sensor readings from the proximity sensor. The proximity sensor may have a light source such as an infrared laser diode and a light detector that measures a reflected portion of infrared light pulses emitted by the infrared laser diode. The control circuitry may include circuitry for safely producing pulses of emitted light with the light source. This circuitry may include a signal generator that produces ramped pulses, a differentiator that differentiates the ramped pulses to produce differentiated pulses, and an output driver that produces current pulses for the light source based on the differentiated pulses.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: April 16, 2019
    Assignee: Apple Inc.
    Inventors: Todd K. Moyer, Jonathan R. Peterson
  • Patent number: 10210675
    Abstract: A failure determination system for a vehicle speed detection device, which, in a case where only one vehicle speed detection device is used, can always accurately perform failure determination of the device, and ensure a high marketability, while avoiding increases in manufacturing costs and product prices of the system. An ECU calculates an engine speed, calculates a detected vehicle speed based on a detection signal from a vehicle speed sensor, calculates an estimated total transmission gear ratio indicative of correlation between the detected vehicle speed and the engine speed, stores the estimated total transmission gear ratio, calculates a reference vehicle speed using a value of the estimated total transmission gear ratio, calculated predetermined times earlier, and the engine speed, and determines a failure of the sensor using a for-use-in-monitoring vehicle speed error which indicates an error between the reference vehicle speed and the detected vehicle speed.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: February 19, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Yuji Yasui
  • Patent number: 10190469
    Abstract: A deterioration determination unit determines whether a catalyst in an exhaust passage of an engine is deteriorated; a first determination unit determines whether there is an air-fuel ratio variation among cylinders of the engine on the basis of distortion in waveform of the air-fuel ratio on the upstream side of the catalyst; and a second determination unit determines whether there is an air-fuel ratio variation among the cylinders on the basis that the air-fuel ratio on the downstream side of the catalyst remains on the lean side. A determination mode switching unit makes the first determination unit execute a determination process concurrently with determination by the deterioration determination unit, and it is determined by the determination process that there is an air-fuel ratio variation among the cylinders, makes the second determination unit execute a determination process in priority to determination of deterioration of the catalyst.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: January 29, 2019
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Katsuhiro Furuta, Kazumichi Takahashi, Yuji Sato, Junya Kitada, Hideo Matsunaga
  • Patent number: 10099703
    Abstract: A vehicular system includes a master ECU, a first slave ECU, and a second slave ECU. The second slave ECU transmits a storing request to the master ECU on detection of a malfunction. The master ECU transmits a storing instruction for causing diagnostic information to be stored, on reception of the storing request. The first slave ECU generates diagnostic information on the first slave ECU, on reception of the storing instruction from the master ECU. The first slave ECU further stores the generated diagnostic information in a retention storage medium. The retention storage medium is configured to retain validity determination information in a condition where the first slave ECU is not supplied with electric power source.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: October 16, 2018
    Assignee: DENSO CORPORATION
    Inventors: Masahiko Tanaka, Mitsuyoshi Natsume, Yasuyuki Takahashi, Yuzo Harata
  • Patent number: 10054074
    Abstract: An estimation unit calculates an estimated value of oxygen concentration in an exhaust passage on the basis of a target injection amount of a fuel injection valve and an air intake amount of an engine. A first determination unit determines the relationship of a detected value to the estimated value of the oxygen concentration, in both a fuel-injecting state and a non-fuel-injecting state. For each of a plurality of cylinders, a second determination unit acquires crankshaft angular acceleration during the expansion strokes of the cylinders in the fuel-injecting state, and determines the relationship of each angular acceleration to the average value of all of the angular accelerations. An abnormality determination unit determines whether or not there is an abnormality in an engine system on the basis of the determination results of the first and second determination units.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: August 21, 2018
    Assignee: HINO MOTORS, LTD.
    Inventor: Hitoshi Nakano
  • Patent number: 10018144
    Abstract: Systems and methods for determining air-fuel error in an engine fueled via direct and port fuel injection. Errors associated with individual fuel injection systems are distinguished from a common error based on trends in the error correction coefficients of the individual fuel injection systems. Adaptive fuel multipliers for each injection system are updated to account for the common error.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: July 10, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Adithya Pravarun Re Ranga, Gopichandra Surnilla, Joseph Lyle Thomas, Ethan D. Sanborn, Mark Thomas Linenberg, Kenneth John Behr
  • Patent number: 10018143
    Abstract: Systems and methods for determining air-fuel error in an engine fueled via direct and port fuel injection. Errors associated with individual fuel injection systems are distinguished from a common error based on trends in the error correction coefficients of the individual fuel injection systems. Adaptive fuel multipliers for each injection system are updated to account for the common error.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: July 10, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Adithya Pravarun Re Ranga, Gopichandra Surnilla, Joseph Lyle Thomas, Ethan D. Sanborn, Mark Thomas Linenberg, Kenneth John Behr, Yichao Guo
  • Patent number: 10012172
    Abstract: A controller for an internal combustion engine including a fuel pressure control processor that controls a fuel pressure at a target fuel pressure, an instruction value calculating processor that calculates a peak instruction value, an upper limit guard processor that executes a guard process on the peak instruction value, an energizing processor that energizes the coil based on the peak instruction value that has undergone the guard process, a convergence determination processor that determines whether or not the detected fuel pressure has converged on the target fuel pressure, and a decreasing processor that decreases the upper limit guard value to a lower value when the fuel pressure has converged on the target fuel pressure than when the fuel pressure has not converged on the target fuel pressure.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: July 3, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Tomohiro Nakano
  • Patent number: 10003864
    Abstract: A transmission device for transmitting a sensor signal relating to a physical variable, including: an input interface for inputting the sensor signal; a signal generator for generating a comparison signal; a data processing unit to combine the sensor signal and the comparison signal to form a modified sensor signal; and an output interface which can be coupled to a signal path to output the modified sensor signal, in which the comparison signal changes over time in a predetermined manner over a range of values, so as to permit a receiver to detect an erroneous sensor signal or an erroneous transmission using the transmitted comparison signal. Also described are a related receiver, a related system, a related vehicle, a related method, and a related computer program.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: June 19, 2018
    Assignee: KNORR-BREMSE SYSTEME FUER NUTZFAHRZEUGE GMBH
    Inventors: Michael Herges, Johannes Kleppe, Dieter Woerner
  • Patent number: 9970332
    Abstract: An engine control module includes at least one high side driver connected to at least one intake camshaft actuator and at least one exhaust camshaft actuator. A plurality of low side drivers is connected to the at least one intake camshaft actuator and the at least one exhaust camshaft actuator. A sliding camshaft control module selectively actuates the at least one high side driver and the plurality of low side drivers based on a status associated with the at least one intake camshaft actuator and/or the at least one exhaust camshaft actuator.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: May 15, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Douglas R. Verner, Kevin Andrew Gady, Scot A. Douglas, Joseph J. Moon
  • Patent number: 9920682
    Abstract: Water-temperature sensors for detection of temperature of cooling water 12 having passed through an engine 1 are increased in number into two (18 and 19). A controller 20 is provided to confirm that each of detection values of the water-temperature sensors 18 and 19 is within a normal range and then employ either of the detection values as temperature of the cooling water 12. The controller 20 is configured such that, when either of the detection values of the water-temperature sensors 18 and 19 is out of the normal range, the remaining detection value within the normal range is employed as temperature of the cooling water 12.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: March 20, 2018
    Assignee: HINO MOTORS, LTD.
    Inventor: Takayuki Nishi
  • Patent number: 9846107
    Abstract: An analyzer and diagnostic system can include one or more sensors that are operable to generate combustion condition data relating to the performance of an associated combustion system. An analysis module can be operable to analyze at least a portion of the combustion condition data and determine a state of the associated combustion system. A diagnostic module can be operable to identify one or more recommended corrective actions for a combustion system performance deviation from a plurality of recommended corrective actions using one or more logic algorithms. Handheld instruments and methods of analyzing and diagnosing combustion processes are also included.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: December 19, 2017
    Assignee: Bacharach, Inc.
    Inventors: David J. D'Amico, Doug W. Keeports, Ralph J. Jenkins
  • Patent number: 9829394
    Abstract: A method is provided for determining the fuel temperature in the high-pressure zone of a fuel injection system of a motor vehicle. The fuel injection system has at least one injector operated by a servo valve which is actuated by means of a piezo actuator. After an injection process has been carried out, the piezo actuator is discharged after the injection has ended in such a way that the servo valve can close, but a non-positive connection remains between the piezo actuator and the servo valve. This condition of reduced charge is maintained. The pressure oscillation of the actuator voltage resulting from this is recorded and from this the hydraulic natural frequency of the enclosed high-pressure volume of fuel is deduced. The prevailing fuel temperature can be determined from the natural frequency.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: November 28, 2017
    Assignee: CONTINENTAL AUTOMOTIVE GMBH
    Inventor: Christian Bauer
  • Patent number: 9811951
    Abstract: Various embodiments of the present invention provide systems and methods for managing fault codes triggered by one or more vehicles during operation. In general, various embodiments of the invention involve recording and analyzing fault codes triggered during a particular time period while a vehicle is in operation. As a result of the analysis, various embodiments of the invention may set a state for each of the identified fault codes, the state indicating a level of action to address the identified fault code. In particular embodiments, the states may be one of a caution state indicating one or more components or sub-systems of the vehicle should be monitored, a critical state indicating one or more components or sub-systems of the vehicle should be repaired, or an environmental state indicating failure or potential failure of one or more components or sub-systems of the vehicle may affect one or more environmental conditions.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: November 7, 2017
    Assignee: United Parcel Service of America, Inc.
    Inventors: John A. Olsen, III, David L. Bradley, Matthew S. Hendrix
  • Patent number: 9803579
    Abstract: In a method for adapting at least one injector of an injection system, in particular of a common-rail injection system of an internal combustion engine of a motor vehicle, where injections take place based on a characteristics map with at least two input variables and at least one output variable, a transition is carried out into a learning mode in which only discrete values are permitted for one of the at least two input variables of the characteristics map.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: October 31, 2017
    Assignee: ROBERT BOSCH GMBH
    Inventors: Daniel Heitz, Peter Landgraf, Holger Rapp, Traugott Degler, Lars Engelfried, Thomas Becker
  • Patent number: 9797967
    Abstract: Gradient coils are operated to acquire magnetic resonance (MR) signals encoding a first MRI image over a first region inside a main magnet of the MRI system in which at least a portion of a subject is placed, the first region being located within a volume of uniform magnetic field with inhomogeneity below a defined threshold. An active coil is energized to shift the volume of uniform magnetic field such that a second region inside the main magnet of the MRI system is located within the shifted volume of uniform magnetic field, at least a portion of the second region being located outside of the volume of uniform magnetic field before the volume of uniform magnetic field has been shifted. The gradient coil is operated to acquire MR signals encoding a second MRI image over the second region.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: October 24, 2017
    Assignee: Synaptive Medical (Barbados) Inc.
    Inventors: Geron André Bindseil, Chad Tyler Harris
  • Patent number: 9797356
    Abstract: A system and method are provided for evacuating fuel from a closed-loop fuel rail after engine testing. The method includes coupling a coaxial hose to a closed-loop fuel rail of an engine. The coaxial hose defines an outer tube section defining an outer passage and surrounding an inner tube section defining an inner passage, and a portion of the inner tube section is inserted a predetermined distance into the fuel rail. The method includes transferring fuel from a fuel supply through the outer passage of the coaxial hose and into the fuel rail for use during an engine testing procedure. After the engine testing procedure is complete, the method includes injecting compressed gas through the inner passage and into the fuel rail, creating a positive pressure. Residual fuel is evacuated from the fuel rail out through the outer passage of the coaxial hose.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: October 24, 2017
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Justin Alexander Kropp, Gerard Peter van Heuven
  • Patent number: 9797395
    Abstract: Apparatus and methods for detecting pump defects in a pumping system comprising multiple pumps. Each pump includes a pump fluid outlet fluidly connected with the pump fluid outlet of the other pumps. Pump defects are detected by generating information related to fluid pressure fluctuations at each pump fluid outlet and determining harmonic frequencies from the information related to fluid pressure fluctuations for each of the plurality of pumps. The amplitude of the harmonic frequencies is indicative of a defective one of the plurality of pumps.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: October 24, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Carlos Urdaneta, Hao Lam, Rajesh Luharuka
  • Patent number: 9784645
    Abstract: An engine control device includes: a pre-ignition determination module that determines whether an operation state of an engine indicated by a rotation speed detected by a rotation speed detection unit and a load calculated by a load calculating module is in a pre-ignition occurring region; a catalyst protection determination module that determines whether the operation state of the engine is in a catalyst protection region; and a fuel cut execution control module that stops a fuel supplied to the engine, when a remaining amount of a fuel tank is determined to be smaller than a tank threshold value and the operation state is determined to be in the pre-ignition occurring region, and when the remaining amount of the fuel tank is determined to be smaller than the tank threshold value and the operation state is determined to be in the catalyst protection region.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: October 10, 2017
    Assignee: SUBARU CORPORATION
    Inventors: Hiroyo Hosono, Takumi Inaba, Takahiro Futagami
  • Patent number: 9719452
    Abstract: A method for controlling an internal combustion engine, wherein a first engine control device generates a control signal to actuate a function of the engine. A switchover device transmits the control signal of the first control device to the engine to actuate the function of the engine. The first control device transmits a sign-of-life signal which indicates functionality of the control device to the switchover device. The first engine control device does not transmit the sign-of-life signal or transmits the signal incorrectly if a fault occurs which endangers proper actuation of the function of the engine by the first engine control device. If the sign-of-life signal of the first engine control device is not or is incorrectly received by the switchover device, the switchover device stops transmitting the control signals of the first engine control device and starts transmitting a control signal generated by a second engine control device to the engine to actuate the function of the engine.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: August 1, 2017
    Assignee: MTU FRIEDRICHSHAFEN GMBH
    Inventors: Andreas Mehr, Christoph Hirschle, Jan Henker, Roger Elze
  • Patent number: 9689300
    Abstract: An engine control system is provided and includes an engine having combustion chambers and provides driving torque through combustion of a fuel injected into the combustion chambers. A turbocharger includes a turbine rotated according to flow energy of exhaust gas, a compressor compressing external air, and a vane adjusting amount of exhaust gas supplied to the turbine. An EGR device recirculates exhaust gas to the combustion chamber. An exhaust manifold includes a body with an internal fluid path, exhaust inlets in which exhaust gas is introduced, a partition to form internal fluid paths, and an exhaust outlet to which exhaust gas is exhausted. Temperature sensors measure temperature of exhaust gas flowing through the internal fluid paths. A controller adjusts an opening amount of the vane of the turbocharger, exhaust gas recirculated using the EGR device, and fuel to be injected to the combustion chambers based on measured temperature.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: June 27, 2017
    Assignee: Hyundai Motor Company
    Inventor: Jong Gu Kim
  • Patent number: 9623817
    Abstract: Methods and systems are provided for controlling an electrical system of a vehicle. Sensors are used to obtain first data for a first path of calculations and second data for a second path of calculations. The first path comprises a first plurality of calculations of generating a value of a parameter pertaining to the electrical system, and the second path comprises a second plurality of calculations of monitoring the electrical system with respect to the first path. A processor is coupled to the plurality of sensors, and is configured to determine whether a data frozen flag is active, perform the first plurality of calculations of the first path using the first data if the first data flag is inactive, and perform the second plurality of calculations of the second path if the first data flag is active.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: April 18, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Brian A. Welchko, Silva Hiti, Abbas Raftari, Jeong J. Park, Hanne Buur, Wei D. Wang, Brian R. Medema, William R. Cawthorne, Jackie L. Cui
  • Patent number: 9600357
    Abstract: Disclosed is an error detection method of fail safe software, the method including outputting a pulse signal according to an operation state of fail safe software monitoring a fail safe function of a motor control device; determining presence or absence of an error of the fail safe software using a frequency of the pulse signal; and controlling an output of the motor control device based on the presence or absence of the error of the fail safe software. Accordingly, even though whether the motor control device is in an abnormal state is not determined due to an error of the fail safe software, it is possible to prevent excessive motor torque from occurring.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: March 21, 2017
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventor: Tae Wan Lim
  • Patent number: 9556840
    Abstract: The invention describes a method and an arrangement for the regulation of the rail pressure in an internal combustion engine. In the method, the rail pressure is regulated, with a target high pressure being predefined. Said target high pressure is filtered, before being input, by way of a target high pressure filter which is configured as a dynamic target high pressure filter.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: January 31, 2017
    Assignee: MTU Friedrichshafen GmbH
    Inventor: Armin Dölker
  • Patent number: 9546616
    Abstract: A fuel supply system for an internal combustion engine has a fuel pump capable of pumping fuel from a fuel tank to the internal combustion engine, a motor driving the fuel pump, a pressure sensor configured to detect pressure of the fuel pumped from the fuel pump, and a control unit configured to output control signals to the motor. The control unit is configured to perform feedback control of duty ratio of the control signals for the motor, and to control the duty lower limit guard value in order to limit an amount of decreases of the duty lower limit guard value in the step-like manner when a duty lower limit guard value decreases.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: January 17, 2017
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Minoru Akita, Naoyuki Tagawa
  • Patent number: 9523318
    Abstract: An air-fuel ratio control apparatus includes an air-fuel ratio detector, an oscillation signal generator, an air-fuel ratio oscillation device, a sum/difference frequency component intensity calculator, a decision parameter calculator, and an imbalance failure determination device. The sum/difference frequency component intensity calculator is configured to calculate, while the air-fuel ratio oscillation device is in operation, at least one of a component intensity of a difference frequency and a component intensity of a sum frequency. The decision parameter calculator is configured to calculate, according to at least one of the component intensity of the difference frequency and the component intensity of the sum frequency, a decision parameter to determine a degree of imbalance of an air-fuel ratio. The imbalance failure determination device is configured to determine an imbalance failure in which the degree of imbalance of the air-fuel ratio exceeds an allowable limit using the decision parameter.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: December 20, 2016
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Atsuhiro Miyauchi, Tooru Sekiguchi, Michinori Tani, Seiji Watanabe
  • Patent number: 9509445
    Abstract: A data transmission system comprising an Automotive Sensor Network System (ASNS) connected to a plurality of source locations via a common bus, wherein the ASNS is configured to ascertain the source from which the data-frames and first package checksum are received and based on the ascertainment of the source, appropriate decoding methods are used to calculate the ASNS location data-frame checksums and the ASNS location package checksums. A higher order redundancy check is done over a series of data-frames to detect errors in the reception caused by temporary high interference that may exist in the transmission path.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: November 29, 2016
    Assignee: Infineon Technologies AG
    Inventors: Dirk Hammerschmidt, Wolfgang Scherr
  • Patent number: 9476330
    Abstract: An electromagnetic valve driver, in normal operation, supplies peak current from a capacitor to a coil of an injector by turning ON a transistor on a downstream side of the coil and a discharge transistor that discharges electricity from the capacitor to the coil. Thereafter, the driver supplies constant current to the coil by an ON-OFF control of a transistor disposed between a battery and an upstream side of the coil until an end of the electricity supply period. When an open failure of the discharge transistor is detected, the driver controls the current to prevent a voltage rise of the capacitor to reduce flyback energy collected from a downstream side of the coil by the capacitor based on a transistor OFF timing delay scheme, in which an OFF timing of a transistor is delayed by a preset delay time from a normal OFF timing thereof.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: October 25, 2016
    Assignee: DENSO CORPORATION
    Inventor: Keita Kojima
  • Patent number: 9458789
    Abstract: An injector driver module applies power to a fuel injector of an engine for a fuel injection event. A voltage measuring module measures first and second voltages at first and second electrical connectors of the fuel injector. A parameter determination module determines a maximum value based on a first difference between the first and second voltages, determines a minimum value based on the first difference between the first and second voltages, and determines a second difference between the maximum and minimum values. A diagnostic module, based on the second difference between the maximum and minimum values, indicates whether the fuel injector injected fuel in response to the application of power.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: October 4, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Michael J. Lucido, Jonathan T. Shibata
  • Patent number: 9437094
    Abstract: A smoke detector according to various embodiments discussed herein can use a non-radioactive ionization technique to detect the presence of smoke and/or other particulate matter. A non-radioactive ionizing detector may use a LED such as an ultraviolet light emitting diod in combination with a pair of conductive plates, one of which is coated with a photocatalyst coating. When the light strikes the photocatalyst coating, ions can be generated that change a charge characteristic of the photocatalytic coated plate. The occurrence of an alarm can be detected based on a measured charge magnitude existing between the two plates.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: September 6, 2016
    Assignee: GOOGLE INC.
    Inventor: Andrew W. Goldenson
  • Patent number: 9429126
    Abstract: A method of detecting a resistive short-to-ground fault in an injector driver circuit is disclosed. The method includes determining if the injector driver circuit is in an inactive state and providing a pull-up resistor configured for connection to a low-side output of at least one fuel injector. The method further includes selectively enabling a pull-up voltage across the pull-up resistor only when the injector driver circuit is in the inactive state and determining an intersection voltage at a point between the pull-up resistor and the low-side output. The method further includes comparing the intersection voltage with a predetermined reference voltage. The method further includes disabling the injector driver circuit if the short-to-ground fault is detected at the low-side of the fuel injectors.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: August 30, 2016
    Assignee: Caterpillar Inc.
    Inventors: William E. Hoban, Jr., Sreekumar Regu Girijakumari
  • Patent number: 9389146
    Abstract: A malfunction-determining device for an exhaust gas purifying device, which includes a filter device and a pressure measuring device, includes a usability determiner being configured to determine whether or not the pressure measuring device is usable based on a pressure measured by the pressure measuring device and an exhaust gas flow rate, a frozen-state determiner being configured to determine whether or not the pressure measuring device is frozen, and a malfunction determiner being configured to determine that the pressure measuring device has a malfunction when the usability determiner determines that the pressure measuring device is unusable and the frozen-state determiner determines that the pressure measuring device is not frozen.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: July 12, 2016
    Assignee: Komatsu Ltd.
    Inventors: Shinichi Saitou, Shouhei Nagasaka, Mitsuyoshi Kimura, Ken Nakano
  • Patent number: 9341109
    Abstract: Methods and systems are provided for adjusting the opening of a scroll valve of a binary flow turbine. Scroll valve adjustments are used at different engine operating conditions to improve engine performance and boost response. Scroll valve adjustments are coordinated with wastegate and EGR valve adjustments for improved engine control.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: May 17, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Brad Alan Boyer, Julia Helen Buckland, Jeffrey Allen Doering, Barbara Westrate, Stephen Lee Cooper, Keith Michael Plagens
  • Patent number: 9297329
    Abstract: Methods and systems are provided for controlling exhaust emissions by adjusting an injection profile for fuel injected into an engine cylinder from a plurality of fuel injectors during engine start and crank. By splitting injection of fuel during start so that a portion of fuel is port injected and a remaining portion is direct injected as one or multiple injections, the soot load of the engine can be reduced and fuel economy can be improved. The injections are adjusted based on the alcohol content of the injected fuel to take advantage of the charge cooling properties of the fuel.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: March 29, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Steven Schwochert, Peter C. Moilanen, Eric Krengel
  • Patent number: 9292979
    Abstract: Various embodiments of the present invention provide systems and methods for managing fault codes triggered by one or more vehicles during operation. In general, various embodiments of the invention involve recording and analyzing fault codes triggered during a particular time period while a vehicle is in operation. As a result of the analysis, various embodiments of the invention may set a state for each of the identified fault codes, the state indicating a level of action to address the identified fault code. In particular embodiments, the states may be one of a caution state indicating one or more components or sub-systems of the vehicle should be monitored, a critical state indicating one or more components or sub-systems of the vehicle should be repaired, or an environmental state indicating failure or potential failure of one or more components or sub-systems of the vehicle may affect one or more environmental conditions.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: March 22, 2016
    Assignee: United Parcel Service of America, Inc.
    Inventors: John A. Olsen, III, David L. Bradley, Matthew S. Hendrix
  • Patent number: 9231260
    Abstract: A system and method for redistribution of the flow of fuel under faulted conditions in a fuel cell system is disclosed. The fuel cell system includes a fuel cell stack; a fuel tank for storing fuel; fuel injectors that sequentially supply fuel from the fuel tank to the fuel cell stack; and a controller for determining whether a fault condition exists in one of the fuel injectors. If a fault condition exists in the first injector, the controller is capable of redistributing the flow of fuel from a first injector to a second injector.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: January 5, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Frank Leo, Kiran Mallavarapu, Lihling Tzuu
  • Patent number: 9200975
    Abstract: A pressure diagnostic system includes a pressure error calculating module that generates a pressure error based on a first pressure signal and a second pressure signal. A difference calculating module generates a desired pressure difference based on a current desired pressure and a prior desired pressure. A lag filter module applies lag filter to the pressure error to generate a lag filtered pressure error. A fault module selectively generates a fault based on the lag filtered pressure error.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: December 1, 2015
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Rafat F. Hattar, Jeffrey M. Hutmacher, Paul D. Donar, Matthew Timothy Hamilton
  • Patent number: 9051912
    Abstract: An octane rating estimating section estimates the octane rating of fuel on the basis of detection signals from intake air temperature, water temperature, fuel and knock sensors. A pre-ignition occurrence index calculating section calculates a pre-ignition occurrence index on the basis of the estimated octane rating; and a pre-ignition occurrence index correcting section corrects the pre-ignition occurrence index such that pre-ignition occurs more easily. An automatic idling stopping determining section determines automatic idling stopping on the basis of a determination result of an automatic idling stopping prohibition determining section which determines the prohibition of automatic idling stopping on the basis of the pre-ignition occurrence index, an operation signal from the air conditioner, and steering information; and a fuel injection control section which controls fuel injection per the automatic idling stopping determination result.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: June 9, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventor: Tomokazu Makino
  • Patent number: 9052223
    Abstract: A flow meter outputs a frequency signal, which corresponds to an air flow quantity of intake air to be supplied to an engine. In an engine control unit, when a sensed value of the air flow quantity, which is obtained based on the frequency signal, is within an estimated air flow quantity range, which is estimated based on an operational state of the engine, the sensed value of the air flow quantity is determined as a measurement value of the flow meter. In contrast, when the sensed value of the air flow quantity is out of the estimated air flow quantity range, a median of the estimated air flow quantity range is determined as the measurement value of the flow meter.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: June 9, 2015
    Assignee: DENSO CORPORATION
    Inventor: Yasushi Kohno
  • Patent number: 9043121
    Abstract: In an engine having a plurality of cylinders in which a plurality of fuel injection valves are provided respectively, fuel is injected at a predetermined injection ratio, and an abnormality of air-fuel ratio variation is detected. If a fuel injection amount of at least one of the plurality of the fuel injection valves is smaller than a predetermined reference value, the fuel injection amount is increased so as to become equal to or larger than the reference value.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: May 26, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Toshihiro Kato, Isao Nakajima, Kiyotaka Kushihama, Tatsuro Shimada, Shinichi Nakagoshi
  • Patent number: 9004050
    Abstract: Embodiments for indicating fuel rail temperature sensor degradation are provided. In one embodiment, an engine method comprises delivering gaseous fuel to a cylinder based on feedback from a fuel rail temperature sensor, and during select conditions, indicating fuel rail temperature sensor degradation based on a difference between measured fuel rail temperature and an expected temperature. In this way, measured fuel rail temperature may be correlated with other engine temperatures to detect sensor degradation.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: April 14, 2015
    Assignee: Ford Global Technologies, LLC
    Inventor: Ross Dykstra Pursifull