Backup Systems, Fail-safe, Failure Indicator Patents (Class 123/479)
  • Patent number: 11105290
    Abstract: Provided is an electronic control device capable of always achieving a desired injector injection amount by preventing a change in injector opening time regardless of a change (a decrease) of a power supply voltage for opening a valve of an injector. A precharge current amount at the time of precharge control is changed in a stepwise manner based on a voltage of the injector valve open power supply device 10 at the time of the precharge control.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: August 31, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventor: Koichi Tsukio
  • Patent number: 11092104
    Abstract: A method for determining a corrected air mass flow value in an engine having an air mass meter in its intake. The method includes determining a cold start condition of the engine at a first time when there is no air mass flow in the intake tract, producing a reference signal by the air mass meter at the first time, and determining an air mass flow offset from the reference signal, producing a measurement signal by the air mass meter at a second time, which is not equal to the first time, which is in an operating period of the engine, determining an air mass flow value from the measurement signal, and determining a corrected air mass flow value from the air mass flow offset and the air mass flow value.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: August 17, 2021
    Assignee: VITESCO TECHNOLOGIES GMBH
    Inventors: Thorsten Knittel, Stephen Setescak
  • Patent number: 11067553
    Abstract: A method for determination and isolation for abnormal sub-sensors in a multi-core sensor. It can be intelligently determined whether the reason for an abrupt dramatic change in sensor data is a sensor fault or sudden pollution, so as to increase data reliability. A data online rate is increased if a repair can be performed via automatic determination when a device fault occurs, which has significant value for continuous monitoring required for a haze treatment operation. In addition, human and material resources for device maintenance may be saved, thereby reducing waste.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: July 20, 2021
    Assignee: NOVA FITNESS CO., LTD.
    Inventors: Shuchun Si, Lining Liu, Jiangshan Song, Jian Gao, Michael Jun Xu
  • Patent number: 11028793
    Abstract: A control unit controls a combustion state of an internal combustion engine based on a detection value of a temperature sensor. A monitor unit calculates an estimated torque of actual torque of the internal combustion engine and calculates an engine-requested torque requested for the internal combustion engine and to monitor whether the estimated torque differs from the engine-requested torque by an amount that is more than or equal to a predetermined criterion. A detection abnormality determination unit determines whether a detection value or behavior of the detection value is abnormal. The monitor unit includes: a normal-state torque calculation unit to calculate an estimated torque by using the detection value when the detection abnormality determination unit does not determine an abnormality; and an abnormal-state torque calculation unit to calculate an estimated torque by inhibiting using of the detection value when the detection abnormality determination unit determines an abnormality.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: June 8, 2021
    Assignee: DENSO CORPORATION
    Inventor: Takanobu Goto
  • Patent number: 10883436
    Abstract: A method to detect and mitigate sensor or actuator degradation in an automobile system includes: collecting a signal data output from at least one device which is outputting the signal data in response to monitored operational parameters of a motor vehicle system; analyzing patterns of the signal data compared to a signal data output from a nominal operating one of the at least one device using an artificial intelligence program; and identifying when the patterns of the signal data exceed a threshold level indicating the at least one sensor or actuator is operating in a degraded condition.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: January 5, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Kevin C. Wong, Jeffrey M. Hutmacher, Marcus S. Gilbert
  • Patent number: 10836402
    Abstract: A vehicle having a control element for the speed, acceleration or direction of the vehicle, two identical or redundant computing devices (e.g., each implemented as a system on chip (SoC)) to separately generate driving commands in parallel during autonomous driving of the vehicle, and a command controller coupled between the control element and the computing devices. In response to the commands from the identical or redundant computing devices, the command controller determines whether the commands are identical (or agree with each other); and if so, the command controller forwards one of the commands to the control element for execution. When there is a mismatch in the commands from the computing devices, the command controller tests the memories of the computing devices to identify a faulty one of the computing devices.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: November 17, 2020
    Assignee: Micron Technology, Inc.
    Inventor: Gil Golov
  • Patent number: 10738727
    Abstract: A pressure sensorless electronic pressure limiting and flow leveling system for an electric pump comprising a multi-mode control process for transferring fluid through a filter feeding a source consuming the fluid as the filter becomes clogged. The multi-mode control process comprising a closed loop current control mode, a pressure limiting control mode for controlling the speed of the motor as a function of a pre-calibrated profile correlating measured motor speed and voltage parameters to a predetermined value in the pre-calibrated profile utilized to set the speed of the motor driving the pump for pumping pressurized fluid through a clogging filter; and a flow leveling control mode correlating measured motor current to a predetermined value in a pre-calibrated profile utilized to set the speed of the motor driving the pump for pumping pressurized fluid as a function of clogging of the filter.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: August 11, 2020
    Assignee: PARAGON PRODUCTS, LLC
    Inventor: Stephen T. Adelman
  • Patent number: 10706189
    Abstract: A testing system computer device for dynamically updating a test plan of an apparatus includes at least one processor in communication with at least one memory device. The testing system computer device is configured to store a plurality of historical data and generate a simulation model of the apparatus based in part on the historical data. The simulation model includes a plurality of inputs and a plurality of outputs of the apparatus. The testing system computer device is also configured to determine a plurality of tests to perform on the apparatus based on the simulation model and the plurality of historical data. The testing system computer device is further configured to receive a plurality of desirability ratings from a user, rank the plurality of tests to perform based on the plurality of desirability ratings, and present the ranked plurality of tests to the user.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: July 7, 2020
    Assignee: General Electric Company
    Inventors: Liping Wang, Isaac Mendel Asher, You Ling, Ankur Srivastava, Arun Karthi Subramaniyan
  • Patent number: 10647392
    Abstract: Disclosed is a module configured for removable attachment to a board and attached to an end of a mast, where the mast supports a hydrofoil and a motor to drive the board. The module includes a connector for connecting to a power source, internal control circuitry, and a thermal bridge to thermally connect the control circuitry to the mast. The module comprises a watertight cavity in which the internal control circuitry is contained.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: May 12, 2020
    Assignee: FLITEBOARD PTY LTD
    Inventor: David Trewern
  • Patent number: 10642558
    Abstract: The image forming apparatus includes a first control section and a second control section. The first control section includes first nonvolatile memory having a log saving area and, upon occurrence of an error, acquires an error log and saves the error log into the log saving area. The second control section includes second nonvolatile memory for storing second software therein and, upon occurrence of an internal communication error causing an interruption of communications with the first control section, the second control section erases the second software and saves in the second nonvolatile memory a communication error log necessary for analysis of the internal communication error.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: May 5, 2020
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Ryo Egami
  • Patent number: 10641214
    Abstract: Methods and systems for diagnosing operation of an exhaust gas recirculation system of an internal combustion engine are described. In one example, the EGR system is diagnosed while an engine that includes the EGR system is not rotating and combusting fuel. The EGR system is diagnosed when the engine is not operating so that vehicle passengers are not disturbed by the diagnostic and so that flow estimates through the EGR system may not be disturbed by pressure changes that may be related to combustion within the engine.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: May 5, 2020
    Assignee: Ford Global Technologies, LLC
    Inventor: Aed Dudar
  • Patent number: 10590882
    Abstract: An injector driver module includes: a first node that is connected to a first terminal of a fuel injector; a first switch configured to, when closed, connect a first potential of a battery to the first node; a second switch configured to, when closed, connect a second potential that is greater than the first potential to the first node; a second node that is connected to a second terminal of the fuel injector; and a third switch configured to, when closed, connect a ground potential to the second node. A switch control module is configured to, starting at a target injecting timing for a fuel injection event of the fuel injector: maintain the third switch closed; and switch the second switch using a pulse width modulated (PWM) signal having (i) a duty cycle that is less than 100 percent and (ii) a predetermined frequency.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: March 17, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Paolo Casasso, Tiziana Belvedere, Umberto Ferrara, Luca Chiapusso
  • 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: 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: 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: 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: 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