Backup, Interrupt, Reset, Or Test Patents (Class 701/114)
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Patent number: 12006887Abstract: A system, method and circuit restricts the amount of a first fuel being provided to a duel-fuel engine, for example a diesel-natural gas engine; wherein a secondary circuit is provided, in parallel, to the circuit formed between the engine control unit, first fuel injector, and ground comprising a dummy load, and a normally closed switch inserted in the first fuel injection circuit; such that when the normally open switch is in a closed state the dummy load provides a resistance to the second sub-circuit, such that a total resistance in the second sub-circuit is equal to a total resistance in the first sub-circuit when the normally closed switch is in a closed state.Type: GrantFiled: October 28, 2020Date of Patent: June 11, 2024Assignee: Innovative Fuel Systems Ltd.Inventors: Peter Staykov, Daniel Ivan Handford, Curtis Figley, Andrei Chichak
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Patent number: 11982247Abstract: A large current flowing when energization by normal load drive control is performed at the time of a load short-circuit is prevented. A load drive device 100 includes drive switches 61 and 62 that turn on or off the current supplied from a power source to a load 70, a switch drive circuit 20 that transmits a drive signal to the drive switches 61 and 62 based on a control command from an arithmetic device 10, and a constant current source 40 that supplies the current to the load 70 without passing through the drive switches 61 and 62. Then, the switch drive circuit 20 performs control so as not to turn on either the drive switches 61 or 62 when the voltage between both ends of the load 70 becomes equal to or less than the determination value in a state where the drive switches 61 and 62 are turned off and in a state where the current is supplied from the constant current source 40 to the load 70.Type: GrantFiled: October 20, 2020Date of Patent: May 14, 2024Assignee: HITACHI ASTEMO, LTD.Inventor: Koichi Tsukio
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Patent number: 11863361Abstract: The disclosed systems and methods for frequency domain (FD) local oscillator frequency offset (LOFO) compensation. The method comprising: i) compensating, by an integer Fast Fourier Transform (FFT) bins-based oscillator, LOFO in a received signal by an integer number of FFT bins; and ii) compensating, by a fractional FFT bins-based oscillator, LOFO in the compensated signal by the integer FFT bins-based oscillator with a fine compensation resolution of a fractional number of FFT bins.Type: GrantFiled: December 15, 2022Date of Patent: January 2, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Meng Qiu, Xuefeng Tang, Ahmed Mohamed Medra, Hossein Najafi, Ali Bakhshali
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Patent number: 11788485Abstract: A method that includes coupling an external, removable fuel pressurization system to a fuel system of a vehicle. The fuel system of the vehicle is pressurized with the fuel pressurization system while the vehicle is parked and without activating a fuel consumer (e.g., an engine) of the vehicle. Decay of pressure of the fuel system is monitored following pressurization of the fuel system, and one or more of a leak, or a replaceable component, of the fuel system of the vehicle is detected based on at least in part on the decay of pressure that are monitored.Type: GrantFiled: March 24, 2022Date of Patent: October 17, 2023Assignee: Transportation IP Holdings, LLCInventors: David Wright, David Baldwin
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Patent number: 11789437Abstract: A processing apparatus includes a processing portion. The processing portion obtains, in time series, a sensor value of a first sensor output from a predetermined apparatus including the first sensor in correspondence with an operation of the predetermined apparatus, sectionalizes the sensor value of the first sensor on a basis of a predetermined condition, and clusters the sectionalized sensor value of the first sensor.Type: GrantFiled: July 9, 2019Date of Patent: October 17, 2023Assignee: CANON KABUSHIKI KAISHAInventor: Koji Asami
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Patent number: 11674946Abstract: An oil condition estimation apparatus to be applied to a vehicle in which oil is agitated by a rotator includes a storage device and an execution device. The storage device stores mapping data for defining mapping. The mapping includes, as input variables, a speed variable indicating a rotation speed of the rotator, and a pressure variable indicating a pressure of the oil, and includes, as an output variable, an air bubble variable related to air bubbles contained in the oil. The execution device executes an acquisition process for acquiring values of the input variables, and a calculation process for calculating a value of the output variable by inputting, to the mapping, the values of the input variables acquired through the acquisition process.Type: GrantFiled: March 23, 2021Date of Patent: June 13, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koichi Okuda, Atsushi Tabata, Kota Fujii, Ken Imamura
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Patent number: 11609557Abstract: An industrial automation system may include an automation device and a control system communicatively coupled to the automation device. The control system may include a first module of a number of modules, such that the first module may receive an indication of a target variable associated with the industrial automation device. The first module may then receive parameters associated with the target variable, identify a portion of data points associated with controlling the target variable with respect to the parameters, generate a model of each data point of the portion over time with respect to the parameters based on the data points, determine functions associated with the model. The functions represent one or more relationships between the each data point of the portion with respect to controlling the target variable. The first module may then adjust one or more operations of the automation device based on the functions.Type: GrantFiled: September 30, 2020Date of Patent: March 21, 2023Assignee: Rockwell Automation Technologies, Inc.Inventors: Bijan SayyarRodsari, Alexander B. Smith, Kadir Liano, Wei Dai, Yash P. Puranik
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Patent number: 11530662Abstract: A method of generating vehicle control data is provided. The method is executed using a processor and a storage device and includes: storing first data that prescribe a relationship between a state of a vehicle and an action variable that indicates an action related to an operation of an electronic device; acquiring a detection value from a sensor that detects the state of the vehicle; operating the electronic device; calculating a reward, on the basis of the acquired detection value; in a case where a predetermined condition is met, updating the first data using, as inputs to update mapping determined in advance, the state of the vehicle, a value of the action variable, and the reward; and in a case where the state of the vehicle does not meet the predetermined condition, obtaining second data by adapting the relationship between the state of the vehicle and the action variable.Type: GrantFiled: September 17, 2020Date of Patent: December 20, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yohsuke Hashimoto, Akihiro Katayama, Yuta Oshiro, Kazuki Sugie, Naoya Oka
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Patent number: 11467052Abstract: A system and method for detecting faulty engine anti-ice sensor is disclosed and may include obtaining first pressure data representing a first pressure over a period of time at a first engine anti-ice pressure sensor on an aircraft engine. The method may further include obtaining second pressure data representing a second pressure over the period of time at a second engine anti-ice pressure sensor on the aircraft engine. The method may also include generating a variance value based at least partially on a variance of a difference between the first pressure data and the second pressure data. The method may include providing an indication that liquid is within the first engine anti-ice pressure sensor or the second engine anti-ice pressure sensor when the variance value exceeds a threshold.Type: GrantFiled: May 28, 2019Date of Patent: October 11, 2022Assignee: The Boeing CompanyInventors: Sean Patrick Warlick, Daniel Volk, Omid B. Nakhjavani, Catherine Crandall
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Patent number: 11466636Abstract: Methods and systems for monitoring a NOx sensor for a NOx offset value are described. In one example, the NOx offset value may be based on a minimum NOx concentration observed over an entire drive of a vehicle. The NOx offset monitor may be inhibited in response to inferring or detecting a presence of NH3 in an exhaust system.Type: GrantFiled: April 8, 2021Date of Patent: October 11, 2022Assignee: Ford Global Technologies, LLCInventors: Michiel J Van Nieuwstadt, Justin Trzeciak, Jim Bromham
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Patent number: 11441508Abstract: A method for CO2 certification and/or CO2-dependent homologation of vehicles that takes into account at least one design feature of the vehicle, which is characterized in that the detected use of a CO2-reduced fuel is taken into account as a design feature of the vehicle.Type: GrantFiled: September 18, 2020Date of Patent: September 13, 2022Assignee: Volkswagen AktiengesellschaftInventor: Stefan Gobrecht
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Patent number: 11386401Abstract: A computing system could have access to mapping data that maps each of a plurality of procedures to respective component identifier(s) used in collision-repair estimates, each procedure including information for repair of vehicle component(s) represented by the respective component identifier(s). Given this, the computing system could instruct a display device to display a visual identifier of a particular collision-repair estimate, could receive input indicative of selection of the visual identifier, and could responsively instruct the display device to display visual indicators representative of vehicle component(s) associated with the particular collision-repair estimate. Moreover, the computing system could receive input indicative of selection of one or more of the visual indicators representative of selected vehicle component(s), and could responsively determine, according to the mapping data, particular procedure(s) based on component identifier(s) representative of the selected vehicle component(s).Type: GrantFiled: January 20, 2019Date of Patent: July 12, 2022Assignee: Mitchell Repair Information Company, LLCInventors: Lester B. Johnson, Todd Mercer, Thomas Southward
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Patent number: 11339703Abstract: Approaches for predicting parameters contributing to engine emissions are described. In an example, the values of control parameters may be obtained from the vehicle sensors. Based on the obtained values of the control parameters, estimated emission value may be determined pertaining to a correlation criterion reflecting a predetermined relationship between the obtained control parameter and engine emission. Further, the contribution index of each of the individual control parameters may be identified. Further, based on the estimated emission value and the contribution index, aggregated emission value corresponding to the exhausted emission from the engine for particular trip may be calculated.Type: GrantFiled: October 20, 2020Date of Patent: May 24, 2022Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: Santhoji Katare, John Joseph Virga, John Paul Bogema, Mohamed Asper, Vamsee Krishna Batchu, Chandar Mathalai, Farshad Harirchi
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Patent number: 11327470Abstract: A unit space generating device (141) which generates a unit space for use when diagnosing an operating state of a plant on the basis of a Mahalanobis distance is provided with: a sampling data acquiring unit (141A) which acquires a sampling data group comprising a plurality of state quantities of the plant, measured with a fixed period; an adoption determining unit (141C) which, on the basis of an adoption probability calculated each time the sampling data group is acquired, determines whether the sampling data group is to be adopted as a unit space generation data group serving as the basis for a unit space; a unit space generating unit (141D) which generates unit spaces on the basis of a plurality of the adopted unit space generation data groups; and an output value acquiring unit (141B) which acquires an output value of the plant corresponding to the sampling data group.Type: GrantFiled: December 18, 2018Date of Patent: May 10, 2022Assignee: MITSUBISHI POWER, LTD.Inventors: Ichiro Nagano, Mayumi Saito, Keiji Eguchi
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Patent number: 11313287Abstract: Methods and systems for unsticking a stuck gaspath actuator are disclosed. In one embodiment, an engine operating method includes adjusting exhaust valve timing of one or more cylinders of an engine in response to an indication that a gaspath actuator is stuck in position. In this way, pressure waves in an exhaust manifold and/or an intake manifold may be generated, which may act to unstick the gaspath actuator.Type: GrantFiled: September 29, 2020Date of Patent: April 26, 2022Assignee: Ford Global Technologies, LLCInventor: Michiel J. Van Nieuwstadt
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Patent number: 11307102Abstract: A method that determines a correct or an incorrect position of a temperature sensor in an emission control system, the method including: determining a first reference temperature within a first temperature interval; measuring a first temperature with the temperature sensor corresponding to the first temperature interval; determining a second reference temperature within a second temperature interval; measuring a second temperature with the temperature sensor corresponding to the second temperature interval; determining a value for a characteristic parameter based on the first reference temperature, the first measured temperature, the second reference temperature and the second measured temperature; comparing the determined value for the characteristic parameter with a predetermined characteristic parameter threshold value that is based upon the determined operation parameter results for different positions of the temperature sensor for predetermined engine operation characteristics; and based upon the compariType: GrantFiled: February 19, 2018Date of Patent: April 19, 2022Assignee: Scania CV ABInventor: Björn Bökelund
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Patent number: 11286837Abstract: A control device comprising a first exhaust temperature calculation part calculating a temperature of exhaust flowing into a PM trapping device as a first exhaust temperature, a second exhaust temperature calculation part calculating a temperature of exhaust flowing out from the PM trapping device as a second exhaust temperature, a rate of change over time calculation part calculating a rate of change over time of the first exhaust temperature and a rate of change over time of the second exhaust temperature, and a judgment part judging if the PM trapping device is in a removed state removed from the exhaust passage based on a difference between the rate of change over time of the first exhaust temperature and the rate of change over time of the second exhaust temperature.Type: GrantFiled: August 17, 2020Date of Patent: March 29, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazumasa Katoh, Takahiko Fujiwara, Kenji Igawa, Kentaro Mineo
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Patent number: 11274421Abstract: A secondary control device may obtain main control information regarding an implement. The secondary control device may obtain monitoring information regarding the implement. The secondary control device may determine, using a first reduced functionality processing technique, secondary control information regarding the implement based on the monitoring information. The secondary control device may determine, using a second functionality processing technique, based on the main control information, the monitoring information, or the secondary control information, that a critical error associated with the implement has occurred. The secondary control device may determine a circumstance associated with the critical error. The secondary control device may select, based on determining the circumstance, a control technique and may control the implement using the control technique.Type: GrantFiled: July 24, 2019Date of Patent: March 15, 2022Assignee: Caterpillar Inc.Inventors: Amit Sharma, Steven Budde
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Patent number: 11262274Abstract: This design method is provided with a design process for a computer to design a ? controller satisfying a prescribed design condition in a feedback control system provided with the ? controller and a generalized plant. Set in the design process are: an integration operation amount calculation unit which calculates an integration operation amount; a summing unit which sums the output from the ? controller and the integration operation amount and generates an input to a nominal plant; a first control amount output port which outputs, as a first control amount output, an output obtained by multiplying the deviation input by a weight function Ge(s); and a second control amount output port which outputs, as a second control amount output, an output obtained by multiplying the output from the ? controller by a weight function Gip(s).Type: GrantFiled: September 11, 2019Date of Patent: March 1, 2022Assignee: MEIDENSHA CORPORATIONInventor: Takao Akiyama
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Patent number: 11261777Abstract: An apparatus includes circuitry configured to calculate a temperature of exhaust flowing into an exhaust after-treatment system as a first exhaust temperature, calculate a temperature of exhaust flowing out from the exhaust after-treatment system as a second exhaust temperature, calculate a rate of change over time of the first exhaust temperature and a rate of change over time of the second exhaust temperature, and judge if the exhaust after-treatment system is in a removed state removed from the exhaust passage based on a difference between the rate of change over time of the first exhaust temperature and the rate of change over time of the second exhaust temperature.Type: GrantFiled: August 13, 2020Date of Patent: March 1, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazumasa Katoh, Takahiko Fujiwara, Kenji Igawa, Kentaro Mineo
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Patent number: 11255246Abstract: An apparatus includes circuitry configured to calculate a temperature of exhaust flowing into an exhaust after-treatment system as a first exhaust temperature, calculate a temperature of exhaust flowing out from the exhaust after-treatment system as a second exhaust temperature, calculate a rate of change over time of the first exhaust temperature and a rate of change over time of the second exhaust temperature, and judge exhaust after-treatment system if the exhaust after-treatment system is in a removed state removed from the exhaust passage based on a difference between the rate of change over time of the first exhaust temperature and the rate of change over time of the second exhaust temperature.Type: GrantFiled: August 13, 2020Date of Patent: February 22, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazumasa Katoh, Takahiko Fujiwara, Kenji Igawa, Kentaro Mineo
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Patent number: 11248568Abstract: A method of diagnosing a temperature sensor provided at a rear stage of an air filter includes: comparing a heating condition factor with a factor threshold; when the heating condition factor is less than the factor threshold, calculating a deviation between a temperature of an intake manifold and a temperature of intake air at a rear stage of an air filter; comparing a temperature threshold with the deviation; and, when the deviation exceeds the temperature threshold, diagnosing the intake air temperature sensor provided at the rear stage of the air filter as failing. According to the method, failure of a temperature sensor provided at a rear state of an air filter of an engine room can be diagnosed.Type: GrantFiled: January 20, 2020Date of Patent: February 15, 2022Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventor: Min-Kyu Won
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Patent number: 11251647Abstract: The present disclosure relates to a vehicle electricity storage device capable of maintaining proper backup of a main power supply. The vehicle electricity storage device includes an electricity storage circuit, a main charge circuit, and a precharge circuit. The electricity storage circuit configured to supply stored electricity to a load. The main charge circuit operates to supply electricity of a main power supply to the electricity storage circuit when an ignition switch is in an ON state of allowing an engine to start. The precharge circuit operates to supply electricity of the main power supply to the electricity storage circuit when the main charge circuit is in a state of stopping operation by the ignition switch being turned off.Type: GrantFiled: August 30, 2017Date of Patent: February 15, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Takahiro Kudo, Yohsuke Mitani, Yoshimitsu Odajima
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Patent number: 11242814Abstract: A learned neural network learned in weights using an engine load, an engine speed, and an intake pressure inside the engine intake passage downstream of the throttle valve (19) as input parameters of the neural network and using leakage of blow-by gas from a blow-by gas feed path (20) as a truth label is stored. At the time of operation of the vehicle, the learned neural network is used to detect the abnormality of leakage of blow-by gas from the blow-by gas feed path (20) from the above input parameters.Type: GrantFiled: May 13, 2020Date of Patent: February 8, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Harufumi Muto, Naoya Okubo, Akihiro Katayama, Yosuke Hashimoto
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Patent number: 11241967Abstract: Presented are vehicle powertrains and control logic for provisioning intelligent fast-torque output, methods for making/using such systems, and electric-drive vehicles with dynamically allocated fast-torque production. A method of controlling torque output of a vehicle powertrain includes a vehicle controller receiving sensor data and determining therefrom maximum and minimum motor torque capacities of a traction motor. The controller calculates the traction motor's maximum and minimum effective motor capacities based on a previous motor torque command and the maximum and minimum torque capacities, respectively. The controller then determines if a negative of the crankshaft torque reserve is: (1) greater than the minimum effective motor capacity; and (2) less than the maximum effective motor capacity. If (1) or (2) is true, an engine spark torque command is set equal to an air torque spark value, and the controller commands an engine assembly to modulate its torque output based on the spark torque command.Type: GrantFiled: May 23, 2019Date of Patent: February 8, 2022Assignee: GM Global Technology Operations LLCInventors: Matthew Yard, Luke D. Shepley, Jacob B. Wilson
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Patent number: 11214271Abstract: A control system interface for a vehicle includes a primary processing unit and a secondary processing unit. The primary processing unit is configured to receive and process a trajectory generated by a trajectory computing unit for autonomous control of the vehicle. The secondary processing unit is configured to receive the trajectory concurrently with the primary processing unit, and to process the trajectory. Autonomous control of the vehicle is passed from the primary processing unit to the secondary processing unit in response to a fault condition with the primary processing unit.Type: GrantFiled: March 10, 2021Date of Patent: January 4, 2022Assignee: Aurora Operations, Inc.Inventor: Anuranga Sajith Gunaratne
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Patent number: 11215103Abstract: An apparatus includes circuitry configured to calculate a temperature of exhaust flowing into an exhaust after-treatment system as a first exhaust temperature, calculate a temperature of exhaust flowing out from the exhaust after-treatment system as a second exhaust temperature, calculate a rate of change over time of the first exhaust temperature and a rate of change over time of the second exhaust temperature, and judge if the exhaust after-treatment system is in a removed state removed from the exhaust passage based on a difference between the rate of change over time of the first exhaust temperature and the rate of change over time of the second exhaust temperature.Type: GrantFiled: August 13, 2020Date of Patent: January 4, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazumasa Katoh, Takahiko Fujiwara, Kenji Igawa, Kentaro Mineo
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Patent number: 11199119Abstract: An apparatus includes circuitry configured to calculate a temperature of exhaust flowing into an exhaust after-treatment system as a first exhaust temperature, calculate a temperature of exhaust flowing out from the exhaust after-treatment system as a second exhaust temperature, calculate a rate of change over time of the first exhaust temperature and a rate of change over time of the second exhaust temperature, and judge if the exhaust after-treatment system is in a removed state removed from the exhaust passage based on a difference between the rate of change over time of the first exhaust temperature and the rate of change over time of the second exhaust temperature.Type: GrantFiled: August 13, 2020Date of Patent: December 14, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazumasa Katoh, Takahiko Fujiwara, Kenji Igawa, Kentaro Mineo
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Patent number: 11157000Abstract: A computer-implemented control system for generating control signals for controlling one or more remotely-located interaction units via a wide-area communications network is described. The control system comprises: a request interface processor for receiving a request for a control signal of a requested control parameter (RCP) relating to a specified environmental requirement (SER) from one of the one or more remotely-located interaction units; the request including: a current value of the RCP, a specified value of the SER; and current values of one or more local environmental parameters (local CERs) related to the SER.Type: GrantFiled: December 21, 2018Date of Patent: October 26, 2021Assignee: FARFETCH UK LIMITEDInventors: Meilene Lam, Paolo Zoccante, Abie Cohen
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Patent number: 11150150Abstract: In the present invention, an input-side control device generates an input-side torque command signal Tr using an engine torque command signal, an input-side velocity detection signal ?, and an input-side shaft torque detection signal Tsh, and is provided with: a shaft torque controller that generates a torque command signal on the basis of the engine torque command signal and an input shaft torque detection signal; and an inertia compensator that feeds back an inertia compensation signal generated by multiplying a set inertia value Jset by the input-side velocity detection signal. The shaft torque controller is provided with a first low-pass filter that, from the engine torque command signal, allows a high-frequency component to decay; and the inertia compensator is provided with a second low-pass filter that, from the input-side velocity detection signal, allows a high-frequency component to decay.Type: GrantFiled: June 28, 2019Date of Patent: October 19, 2021Assignee: MEIDENSHA CORPORATIONInventor: Takao Akiyama
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Patent number: 11136933Abstract: Methods and systems for engine operation are provided. In at least one example method, the method comprises, while operating an engine with at least one lean cylinder and at least one rich cylinder, delivering fuel to the at least one lean cylinder via direct fuel injection (DI) and delivering fuel to the at least one rich cylinder via port fuel injection (PFI).Type: GrantFiled: April 3, 2020Date of Patent: October 5, 2021Assignee: Ford Global Technologies, LLCInventors: Joseph Lyle Thomas, Chris Paul Glugla, Rani Kiwan
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Patent number: 11129106Abstract: System, methods, and other embodiments described herein relate to conserving energy in a device attached to a transceiver. In one embodiment, a method includes, in response to the device entering a low power mode, monitoring communications received in the transceiver on behalf of the device to determine when to wake the device out of the low-power mode according to at least a wake condition. The method includes performing, by the transceiver, at least one network function on behalf of the device when the device is in the low-power mode.Type: GrantFiled: January 31, 2019Date of Patent: September 21, 2021Assignee: DENSO International America, Inc.Inventor: Wei Jiang
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Patent number: 11126903Abstract: An unmanned aircraft system (UAS) making use of unmanned aerial vehicles (UAVs) for more than one task. The inventors discovered that an improved UAS could be provided by combining one or more of these three elements: (1) hot-swappable modular kits (e.g., a plurality of components useful in UAVs to perform particular user-selectable tasks); (2) an interconnection mechanism for each component with identification protocols that provides both a physical and a data connection; and (3) an intelligent system that interprets the identification protocols and determines the configuration for a selected task, error checking, airworthiness, and calibration. The system and associated methods for the task based drone configuration and verification reduces the possibility of task failure by an operator.Type: GrantFiled: September 27, 2018Date of Patent: September 21, 2021Assignee: LIMITLESS COMPUTING, INC.Inventors: Errin T. Weller, Jeffrey B. Franklin
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Patent number: 11118531Abstract: An engine control device is provided. A fuel injection valve performs a pre-injection and a main injection on a retarding side of the pre-injection so that pressure waves resulting from combustions caused by the injections cancel each other out. The control device secures a fuel injection amount to be supplied to a combustion chamber in one cycle by at least the pre-injection, the main injection, and a middle injection. The control device causes the fuel injection valve to perform the pre-injection at a timing when a piston is located at an advancing side of compression top dead center for premix combustion, to start the main injection during a combustion period of the fuel injected by the pre-injection for diffuse combustion, and to perform the middle injection at a timing between the other two injections with a fuel injection amount less than the other injections.Type: GrantFiled: November 22, 2019Date of Patent: September 14, 2021Assignee: Mazda Motor CorporationInventors: Takeru Matsuo, Yoshie Kakuda, Sangkyu Kim, Daisuke Shimo
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Patent number: 11105248Abstract: A control device comprising a first exhaust temperature calculation part calculating a temperature of exhaust flowing into a PM trapping device as a first exhaust temperature, a second exhaust temperature calculation part calculating a temperature of exhaust flowing out from the PM trapping device as a second exhaust temperature, a rate of change over time calculation part calculating a rate of change over time of the first exhaust temperature and a rate of change over time of the second exhaust temperature, and a judgment part judging if the PM trapping device is in a removed state removed from the exhaust passage based on a difference between the rate of change over time of the first exhaust temperature and the rate of change over time of the second exhaust temperature.Type: GrantFiled: August 17, 2020Date of Patent: August 31, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazumasa Katoh, Takahiko Fujiwara, Kenji Igawa, Kentaro Mineo
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Patent number: 11078862Abstract: Various embodiments include a method for checking a calibration of a pressure sensor comprising: moving a piston toward a TDC in successive cycles; while the piston moves toward TDC, closing an inlet valve thereby adjusting a setpoint value of a fluid pressure; measuring the fluid pressure with the pressure sensor arranged downstream of the outlet valve; applying a measurement current to the electromagnet when the inlet valve is closed; while the piston moves away from TDC, detecting an opening position of the inlet valve on the basis of a predetermined change with respect to time of the measurement current at which an opening movement of the inlet valve begins; over multiple pump cycles, changing the setpoint value of the fluid pressure by a predetermined difference; checking whether the change in opening position satisfies a predetermined correspondence criterion; and if the criterion is met, generating a fault signal.Type: GrantFiled: May 10, 2017Date of Patent: August 3, 2021Assignee: VITESCO TECHNOLOGIES GMBHInventors: Tet Kong Brian Chia, Dmitriy Kogan
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Patent number: 11078876Abstract: An estimation unit estimates a fuel pressure on a discharge side of a high-pressure pump based on an amount of fuel injection with a fuel injection valve from a time point at which a detected fuel pressure changes from a higher status than a first pressure to a lower status, assuming that the fuel has not been discharged with the high-pressure pump. The determination unit determines that a relief valve is in an open status based on a dropping mode of the estimated fuel pressure and a dropping mode of the detected fuel pressure.Type: GrantFiled: October 22, 2019Date of Patent: August 3, 2021Assignees: DENSO CORPORATION, MAZDA MOTOR CORPORATIONInventors: Yuri Sakamoto, Tomohiro Kanaya, Takafumi Nishio
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Patent number: 11073066Abstract: A control device comprising a first exhaust temperature calculation part calculating a temperature of exhaust flowing into a PM trapping device as a first exhaust temperature, a second exhaust temperature calculation part calculating a temperature of exhaust flowing out from the PM trapping device as a second exhaust temperature, a rate of change over time calculation part calculating a rate of change over time of the first exhaust temperature and a rate of change over time of the second exhaust temperature, and a judgment part judging if the PM trapping device is in a removed state removed from the exhaust passage based on a difference between the rate of change over time of the first exhaust temperature and the rate of change over time of the second exhaust temperature.Type: GrantFiled: August 17, 2020Date of Patent: July 27, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazumasa Katoh, Takahiko Fujiwara, Kenji Igawa, Kentaro Mineo
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Patent number: 11060438Abstract: A control device comprising a first exhaust temperature calculation part calculating a temperature of exhaust flowing into a PM trapping device as a first exhaust temperature, a second exhaust temperature calculation part calculating a temperature of exhaust flowing out from the PM trapping device as a second exhaust temperature, a rate of change over time calculation part calculating a rate of change over time of the first exhaust temperature and a rate of change over time of the second exhaust temperature, and a judgment part judging if the PM trapping device is in a removed state removed from the exhaust passage based on a difference between the rate of change over time of the first exhaust temperature and the rate of change over time of the second exhaust temperature.Type: GrantFiled: August 17, 2020Date of Patent: July 13, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazumasa Katoh, Takahiko Fujiwara, Kenji Igawa, Kentaro Mineo
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Patent number: 11047288Abstract: A control device comprising a first exhaust temperature calculation part calculating a temperature of exhaust flowing into a PM trapping device as a first exhaust temperature, a second exhaust temperature calculation part calculating a temperature of exhaust flowing out from the PM trapping device as a second exhaust temperature, a rate of change over time calculation part calculating a rate of change over time of the first exhaust temperature and a rate of change over time of the second exhaust temperature, and a judgment part judging if the PM trapping device is in a removed state removed from the exhaust passage based on a difference between the rate of change over time of the first exhaust temperature and the rate of change over time of the second exhaust temperature.Type: GrantFiled: August 13, 2020Date of Patent: June 29, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazumasa Katoh, Takahiko Fujiwara, Kenji Igawa, Kentaro Mineo
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Patent number: 11047112Abstract: A control system includes: an engine; a first hydraulic pump and a second hydraulic pump driven by the engine; a switching device provided in a flow path that connects the first hydraulic pump to the second hydraulic pump, and configured to perform switching between a merged state in which the flow path is opened and a separated state in which the flow path is closed; a first hydraulic actuator to which hydraulic fluid discharged from the first hydraulic pump is supplied in the separated state; a second hydraulic actuator to which hydraulic fluid discharged from the second hydraulic pump is supplied in the separated state; a determining unit configured to determine whether output of the engine is limited; and a merging-separating control unit configured to control the switching device so as to perform switching to the merged state when the determining unit determines that output of the engine is limited.Type: GrantFiled: July 27, 2017Date of Patent: June 29, 2021Assignee: Komatsu Ltd.Inventors: Shimon Jimbo, Kenichi Kitamura, Yoshihiro Kumagae
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Patent number: 11028760Abstract: A control device comprising a first exhaust temperature calculation part calculating a temperature of exhaust flowing into a PM trapping device as a first exhaust temperature, a second exhaust temperature calculation part calculating a temperature of exhaust flowing out from the PM trapping device as a second exhaust temperature, a rate of change over time calculation part calculating a rate of change over time of the first exhaust temperature and a rate of change over time of the second exhaust temperature, and a judgment part judging if the PM trapping device is in a removed state removed from the exhaust passage based on a difference between the rate of change over time of the first exhaust temperature and the rate of change over time of the second exhaust temperature.Type: GrantFiled: August 17, 2020Date of Patent: June 8, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazumasa Katoh, Takahiko Fujiwara, Kenji Igawa, Kentaro Mineo
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Patent number: 11014581Abstract: A locomotive engine control system includes one or more processors operably connected to fuel supply devices. The fuel supply devices are configured to supply fuel into different corresponding cylinders of an engine. The one or more processors are configured to monitor a fuel quantity injected into the cylinders of the engine before and after communication of an overfuel control signal. The overfuel control signal commands the fuel supply device corresponding to a first cylinder of the cylinders to supply excess fuel into the first cylinder. Responsive to the fuel quantity that is monitored not decreasing after the communication of the overfuel control signal, the one or more processors are configured to determine that the fuel supply device corresponding to the first cylinder is defective, and may generate one or more control signals indicative of the fuel supply device corresponding to the first cylinder being defective.Type: GrantFiled: January 21, 2019Date of Patent: May 25, 2021Assignee: TRANSPORTATION IP HOLDINGS, LLCInventors: Michael P. Altonji, Jesse A. Brigden, Todd Hayden, Paul Gerard Nistler, Mark Douglas Smith, Neeraj Agrawal, Glenn Shaffer, David Joseph Schroeck
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Patent number: 11008923Abstract: A control device comprising a first exhaust temperature calculation part calculating a temperature of exhaust flowing into a PM trapping device as a first exhaust temperature, a second exhaust temperature calculation part calculating a temperature of exhaust flowing out from the PM trapping device as a second exhaust temperature, a rate of change over time calculation part calculating a rate of change over time of the first exhaust temperature and a rate of change over time of the second exhaust temperature, and a judgment part judging if the PM trapping device is in a removed state removed from the exhaust passage based on a difference between the rate of change over time of the first exhaust temperature and the rate of change over time of the second exhaust temperature.Type: GrantFiled: August 13, 2020Date of Patent: May 18, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazumasa Katoh, Takahiko Fujiwara, Kenji Igawa, Kentaro Mineo
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Patent number: 11008961Abstract: A control arithmetic unit uses a control storage area to compute a target control amount for combustion of an internal combustion engine according to a user required torque. A monitoring arithmetic unit uses a monitoring storage area to perform computation and to monitor presence or absence of a torque anomaly state in which an estimated torque is deviated from an engine required torque by a predetermined amount or more. The monitoring arithmetic unit computes the estimated torque by using a blow through state amount. The blow through state amount is a quantity of intake air blowing through out of an exhaust port in an intake stroke of the internal combustion engine, a degree to which intake air blows through out of the exhaust port, or an in-cylinder air quantity which is a quantity of air filled into a combustion chamber of the internal combustion engine.Type: GrantFiled: January 24, 2020Date of Patent: May 18, 2021Assignee: DENSO CORPORATIONInventor: Yusaku Suzuki
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Patent number: 10995646Abstract: A control device comprising a first exhaust temperature calculation part calculating a temperature of exhaust flowing into a PM trapping device as a first exhaust temperature, a second exhaust temperature calculation part calculating a temperature of exhaust flowing out from the PM trapping device as a second exhaust temperature, a rate of change over time calculation part calculating a rate of change over time of the first exhaust temperature and a rate of change over time of the second exhaust temperature, and a judgment part judging if the PM trapping device is in a removed state removed from the exhaust passage based on a difference between the rate of change over time of the first exhaust temperature and the rate of change over time of the second exhaust temperature.Type: GrantFiled: August 17, 2020Date of Patent: May 4, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazumasa Katoh, Takahiko Fujiwara, Kenji Igawa, Kentaro Mineo
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Patent number: 10989095Abstract: A control device comprising a first exhaust temperature calculation part calculating a temperature of exhaust flowing into a PM trapping device as a first exhaust temperature, a second exhaust temperature calculation part calculating a temperature of exhaust flowing out from the PM trapping device as a second exhaust temperature, a rate of change over time calculation part calculating a rate of change over time of the first exhaust temperature and a rate of change over time of the second exhaust temperature, and a judgment part judging if the PM trapping device is in a removed state removed from the exhaust passage based on a difference between the rate of change over time of the first exhaust temperature and the rate of change over time of the second exhaust temperature.Type: GrantFiled: August 13, 2020Date of Patent: April 27, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazumasa Katoh, Takahiko Fujiwara, Kenji Igawa, Kentaro Mineo
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Patent number: 10975752Abstract: A control device comprising a first exhaust temperature calculation part calculating a temperature of exhaust flowing into a PM trapping device as a first exhaust temperature, a second exhaust temperature calculation part calculating a temperature of exhaust flowing out from the PM trapping device as a second exhaust temperature, a rate of change over time calculation part calculating a rate of change over time of the first exhaust temperature and a rate of change over time of the second exhaust temperature, and a judgment part judging if the PM trapping device is in a removed state removed from the exhaust passage based on a difference between the rate of change over time of the first exhaust temperature and the rate of change over time of the second exhaust temperature.Type: GrantFiled: August 13, 2020Date of Patent: April 13, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazumasa Katoh, Takahiko Fujiwara, Kenji Igawa, Kentaro Mineo
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Patent number: 10964135Abstract: A control circuit configured to control an actuator mounted in a vehicle performs a self-diagnostic procedure. A monitoring circuit is configured to monitor an operating state of the control circuit based on diagnostic information resulting from the self-diagnostic procedure. When determining that the control circuit operates abnormally, the monitoring circuit blocks a control signal output from the control circuit to the actuator and outputs a reset signal to initialize the control circuit while maintaining the diagnostic information resulting from the self-diagnostic procedure in a RAM. Furthermore, when a predetermined condition is further satisfied, the monitoring circuit stops outputting the reset signal, thereby restarting the control circuit so that the control circuit performs abnormality response processing.Type: GrantFiled: March 23, 2018Date of Patent: March 30, 2021Assignee: Hitachi Automotive Systems, Ltd.Inventor: Toshihiro Takahashi
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Patent number: 10962445Abstract: The present teaching includes a speed control of a side shaft of a drive train connected to a dynamometer on a drive train test stand in which a torque (MFxi) caused by the longitudinal force (FXi) calculated in a simulation model is additionally transferred to the control unit, and from this a compensation torque (MKi) is calculated in the control unit as a function of the longitudinal force (FXi) caused by the torque (MFxi) and a deviation (AJi) between a moment of inertia (JBi) of the dynamometer and a moment of inertia (JRi) of the simulated vehicle wheel, the control unit calculates a torque (MREi,) from the setpoint speed (nBi,set) with a speed controller and a torque (MBi,soll) to be set with the dynamometer is calculated as the sum of the compensation torque (MKi) and the torque (MREi) calculated by the speed controller and set by the dynamometer.Type: GrantFiled: December 5, 2017Date of Patent: March 30, 2021Assignee: AVL LIST GmbHInventors: Klaus Pfeiffer, Martin Schmidt