Internal Combustion Engine Or Related Engine System Or Engine Component Patents (Class 73/114.01)
  • Patent number: 10823099
    Abstract: A controller associated with an engine monitoring system may determine a voltage value concerning at least one supercapacitor associated with the engine monitoring system. The controller may selectively cause, based on determining whether the voltage value satisfies a voltage value threshold, the at least one supercapacitor, or a battery associated with the engine monitoring system, to provide electrical power to a sensor system associated with the engine monitoring system. The controller may obtain, from the sensor system, vibration information relating to an engine associated with the engine monitoring system and pressure information relating to a crankcase of the engine. The controller may determine, based on the vibration information and the pressure information, engine speed information related to the engine and may send the engine speed information to a monitoring device.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: November 3, 2020
    Assignee: Caterpillar Inc.
    Inventors: James Hall, Ahmed Syed
  • Patent number: 10794244
    Abstract: Methods and systems are provided for indicating crankcase breach due to disconnection of a crankcase vent tube from an engine on a clean air side or broken crankcase vent tube. In one example, a maximum possible change in crankcase vent tube pressure is estimated for each pedal transient of a drive cycle. The change for a plurality of transients in averaged and compared to a threshold to identify vent tube disconnection.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: October 6, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: In Kwang Yoo, Michiel J. Van Nieuwstadt, Rui Chen
  • Patent number: 10571366
    Abstract: Methods and systems are provided for diagnostics of a cylinder valve actuation mechanism in a variable displacement engine (VDE). In one example, during an engine-off condition, the engine may be rotated unfueled, via a starter motor, and a reference exhaust air flow may be estimated. One or more deactivatable engine cylinders may then be deactivated and degradation of the cylinder valve actuation mechanism may be indicated based on a difference between the exhaust air flow following the cylinder deactivation and the reference exhaust air flow.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: February 25, 2020
    Assignee: Ford Global Technologies, LLC
    Inventor: Aed M. Dudar
  • Patent number: 10570837
    Abstract: A method to obtain average revolutions per independent unit includes a total number of engine revolutions with an on-board computing device and a current distance value with the on-board computing device and a retrofitted global positioning system unit so that a final value can be calculated by dividing the total number of engine revolutions with the current distance value for a designated time period. The current distance value can be a distance unit or time unit as the final value, which is the average revolutions per independent unit, is displayed with a control panel of a vehicle. The final value provides an accurate conclusion regarding the current condition of an engine in addition to the accuracy mileage of the engine or the engine hours.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: February 25, 2020
    Inventor: Kenneth Carl Steffen Winiecki
  • Patent number: 10379002
    Abstract: The invention relates to an atmosphere conditioning device for testing engines, comprising an inflow conduit connected to an engine admission, an outflow conduit connected to the exhaust of the engine and expelling exhaust gases, a communication conduit which communicates the inflow conduit with the outflow conduit, a supercharging turbogenerator comprising a turbine in the inflow conduit, a bypass valve which diverts the air flow that circulates towards the turbine, a heat regenerator consisting of heat exchangers in the inflow and outflow conduits, connected by the same heat transfer fluid circuit, a bypass valve in the outflow conduit together with the heat exchanger thereof, a heat exchanger in the outflow conduit downstream from the heat regenerator, and a turbocompressor downstream from the heat exchanger.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: August 13, 2019
    Assignee: UNIVERSITAT POLITÉCNICA DE VALENCIA
    Inventors: José María Desantes Fernández, José Galindo Lucas, Francisco Payri González, Pedro Piqueras Cabrera, José Ramón Serrano Cruz
  • Patent number: 10221797
    Abstract: A method and a control device for monitoring the pressure in a crankcase of an internal combustion engine. The desired values for the pressure in the crankcase are defined for a plurality of operating points of the internal combustion engine. Furthermore, at least one of the defined desired pressure values is modified during operation of the internal combustion engine.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: March 5, 2019
    Assignee: MTU FRIEDRICHSHAFEN GMBH
    Inventors: Michael Hönl, Christian Rehm, Kai-Michael Trautz, Johannes Baldauf
  • Patent number: 10054499
    Abstract: A system may include at least one engine bank including a plurality of fuel injectors. At least one exhaust temperature sensor is coupled to the engine bank(s). The exhaust temperature sensor(s) is configured to output at least one temperature signal regarding an exhaust temperature of the engine bank(s). A traction system is configured to output at least one electrical signal related to a power output of a vehicle. A control unit is coupled to the exhaust temperature sensor(s) and the traction system. The control unit is configured to receive the temperature signal(s) and the electrical signal(s). The control unit is configured to determine a mechanical and electrical health of the plurality of the fuel injectors by determining a temperature differential value of the temperature signal(s) and a power differential value related to the electrical signal(s), and analyzing a combination of the temperature differential value and the power differential value.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: August 21, 2018
    Assignee: General Electric Company
    Inventors: Milan Palinda Karunaratne, Benedict George Lander
  • Patent number: 9973135
    Abstract: A rotary electric machine control system includes a rotary electric machine, a rotation speed sensor, a temperature sensor, and circuitry. The rotary electric machine includes a rotor. The rotation speed sensor is to detect a rotation speed of the rotor. The temperature sensor is to detect a temperature of the rotary electric machine. The circuitry is configured to classify an operation time during which the rotor rotates based on the rotation speed detected by the rotation speed sensor and the temperature detected by the temperature sensor. The circuitry is configured to calculate a fatigue degree of the rotor based on the operation time classified. The circuitry is configured to limit the rotation speed of the rotor or output a signal to a user when the fatigue degree exceeds a threshold value.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: May 15, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Akio Tsumasaka, Keisuke Azusawa
  • Patent number: 9810377
    Abstract: A mass flow controller includes at least one conduit having a fluid inlet and a fluid outlet, the conduit defining a flow path along which the fluid flows. The mass flow controller also includes a modified inlet block having an inlet aperture, an inlet channel, and a reservoir fluidly coupled to the inlet channel and the conduit that enhances flow through the controller and improves rate-of-decay measurements. The mass flow controller includes at least one flow sensor that generates a flow sensor signal that is proportional to the mass flow rate of the fluid through the conduit. The mass flow controller includes a control subsystem coupled to a flow sensor and a valve assembly to control flow through the conduit.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: November 7, 2017
    Assignee: Illinois Tool Works Inc.
    Inventors: Anthony Kehoe, John Lull, Bill Valentine, Chris Ellec
  • Patent number: 9664078
    Abstract: A Positive Crankcase Ventilation (PCV) channel disconnect detection device and method is provided for an engine having a crankcase, an intake system for delivering metered air to the engine, and a PCV channel for containing PCV gas flow between the crankcase and the intake system and having a first end and a second end. The PCV channel disconnect detection device includes a detection channel that supplies unmetered air surrounding one of the ends of the PCV channel to a post-throttle portion of the intake system. The detection channel is inoperable in response to a vacuum in the post-throttle portion of the intake system if the PCV channel connection is connected. The detection channel is operable in response to the vacuum in the post-throttle portion of the intake system if the PCV channel is disconnected. The detection channels may be configured to bypass all flow restrictions in the PCV system.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: May 30, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Marie-Christine G. Jones, John Mark Lorentz
  • Patent number: 9507351
    Abstract: A mass flow controller includes a fluid inlet, a fluid outlet, and a conduit defining a flow path along which the fluid flows through the mass flow controller. The mass flow controller includes an inlet block having an inlet aperture, an inlet channel fluidly coupled to the conduit, and one or more restrictors positioned along the flow path between the inlet aperture and inlet channel to minimize flow perturbations when a rate of decay measurement is taken or when flow the amount of pressure supplied to the valve inlet is otherwise interrupted.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: November 29, 2016
    Assignee: Illinois Tool Works Inc.
    Inventors: Anthony Kehoe, John Lull, Bill Valentine, Chris Ellec, Berwin Banares
  • Patent number: 9322837
    Abstract: In a semiconductor device, a heater is formed on a surface of a cap chip, and a first temperature sensor and a second temperature sensor are formed on a surface of a base chip. The cap chip and the base chip are laminated through a connection member such that the surfaces oppose to each other. The position of the heater is different from the positions of the temperature sensors in a direction of the lamination. The heater in the cap chip contacts bumps directly.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: April 26, 2016
    Assignee: Renesas Electronics Corporation
    Inventors: Akira Tanabe, Yasutaka Nakashiba
  • Patent number: 9250155
    Abstract: An engine testing device for dynamic pressure loss and valve seal-tightness testing of a running four-stroke engine includes: a first pressure gauge detecting a pressure value in an air intake line to a cylinder of the engine and outputting a first output signal indicative of the pressure value detected; a second pressure gauge detecting a pressure value in an exhaust line of the engine and outputting a second output signal indicative of the pressure value detected; a trigger device detecting an electrical signal indicative of when a selected cylinder of the engine is the particular active cylinder; and a measured value detection device detecting the output signals of the first and second pressure gauges and an output signal of the trigger device, such that an association between points in time of the pressure measurements and the particular active cylinder is enabled.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: February 2, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventor: Martin Schaedel
  • Patent number: 9128006
    Abstract: So as to verify compliance with limit values for harmful substances, large engines today must be tested in accordance with the regulations of the International Civil Aviation Organization (ICAO). Presently neither a standardized measuring method nor a standard exists with respect to particulate emissions (ultrafine particles). The invention relates to the creation of a standardized transport system having the lowest possible loss for measuring ultrafine particles of aircraft engines, which can be operated simultaneously with the harmful substance measurement of aircraft engines stipulated until now. Appropriate instruments for measuring the particle count, mass and size distribution can be connected to this transport system.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: September 8, 2015
    Assignee: AVL List GmbH
    Inventor: Theo Rindlisbacher
  • Patent number: 9038578
    Abstract: The invention relates to a unit for simulating the pressure and temperature conditions of an air flow drawn in by a reciprocating internal combustion engine (1) at a height above sea level, corresponding to the operating height of said reciprocating internal combustion engine (1). According to the invention, the unit comprises at least: (a) a radial inward-flow turbine (2) for expanding an air flow towards the pressure and temperature of the air drawn in by the reciprocating internal combustion engine; (b) a first container (4) and (c) a second container (5) connected to the first container (4) by means of at least a connection pipe (7) in order to balance the pressure between the two containers; (d) a centrifugal compressor (3); and (e) a vacuum pump (6) for maintaining a pressure equal to the pressure of the air flow drawn in by the reciprocating internal combustion engine (1).
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: May 26, 2015
    Assignee: UNIVERSIDAD POLITECNICA DE VALENCIA
    Inventors: Francisco Payri González, José María Desantes Fernández, José Galindo Lucas, José Ramón Serrano Cruz
  • Patent number: 9032787
    Abstract: Various methods and systems are provided for detecting particles generated from engine component degradation within an engine system. In one embodiment, a method for an engine comprises indicating engine degradation in response to a buildup of particles in a magnetic field, the magnetic field positioned in a flow of gas.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: May 19, 2015
    Assignee: General Electric Company
    Inventors: Eric David Peters, Larry Gene Anderson, Roshan Shekhar Kotian, Chirag Bipinchandra Parikh
  • Patent number: 8978453
    Abstract: A method of detecting a crank signal error that includes incrementing a crank tooth counter in response to detecting a crank signal, comparing the crank tooth counter to an expected value when a cam signal is detected, and indicating a crank signal error if the crank tooth counter is not substantially equal to the expected value. This method is advantageous because a cam interval used to determine when to start and stop counting crank tooth pulses is automatically adjusted for variations in engine speed, while the prior art time based methods must adjust the time interval for variations in engine speed.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: March 17, 2015
    Assignee: Delphi Technologies, Inc.
    Inventors: Salem Ahmad Fayyad, Andy Tenka, Sergio Quelhas
  • Publication number: 20150021925
    Abstract: A method to control temperature of an engine of a generator system during a load test is provided. The generator system includes a generator, one of a liquid load bank and an air resistive load bank, a reversible fan, and a heat exchanger. The method includes heating of the engine to a pre-determined temperature with heat supplied by the liquid load bank and the reversible fan or by the air resistive load bank via the reversible fan.
    Type: Application
    Filed: October 9, 2014
    Publication date: January 22, 2015
    Applicant: Caterpillar Inc.
    Inventors: Robert M. Stengl, Anis Ahmed
  • Publication number: 20150007642
    Abstract: A method for extracting characterizing features from an ion current trace retrieved from spark plugs of cylinders of an internal combustion engine, comprises the steps of: i. dividing the ion current signal into crank angle subintervals; ii. calculating a measure of ion current in each crank angle subinterval; and iii. Performing a calculation on the measure of ion currents from different subintervals such that the result of the calculation is dimension free. Further it relates to a method of monitoring combustion processes where a plurality of ion current signals from a number of spark plugs (4A, 4B) are retrieved and used in combination.
    Type: Application
    Filed: January 30, 2013
    Publication date: January 8, 2015
    Inventor: Jakob Angeby
  • Publication number: 20140326059
    Abstract: A hydrodynamic torque generator (3) for test benches is provided with at least one inlet valve and at least one outlet valve and with at least one control device for valve positioning coupled to these valves. By implementing a control system, which consists of an open-loop feed-forward controller and a closed-loop feedback controller, in the control device, a machine of this kind can also be used in dynamic test benches.
    Type: Application
    Filed: June 6, 2012
    Publication date: November 6, 2014
    Applicant: AVL LIST GMBH
    Inventors: Thomas E. Passenbrunner, Mario Sassano, Hannes Trogmann, Luigi Delre, Helmut Kokal, Martin Schmidt, Michael Paulweber
  • Patent number: 8844341
    Abstract: An internal engine component including a data collector assembly is provided. The data collector assembly includes a sensor for sensing a condition and for generating a signal corresponding to the condition and a digital to analog converter for converting the signal to a digital signal. The data collector assembly also includes a memory for storing data, a clock and a processor. A power source is electrically connected to the sensor, the analog to digital converter, the memory, the clock and the processor. During an engine test, the processor, sensor, digital to analog converter, clock and memory are substantially the only devices that draw electricity from the power source.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: September 30, 2014
    Assignee: Federal-Mogul Corporation
    Inventors: Andrew J. Miller, Jonathan Owen Neuendorf
  • Publication number: 20140250990
    Abstract: In a hybrid vehicle that selects a series mode in which an engine drives a motor generator to generate electric power and a driving motor drives drive wheels, fuel supply to the engine is stopped and motoring in which the motor generator forcedly drives the engine can be performed, failure determination of a front O2 sensor and a rear O2 sensor provided in an exhaust passage of the engine can be performed based on a change in a detection value of the sensors when the fuel supply is stopped, and a throttle valve of the engine is forcedly opened in the motoring.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 11, 2014
    Applicant: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Hideo MATSUNAGA, Hisakazu IKEDAYA, Hitoshi KAMURA, Toshiyuki MIYATA
  • Publication number: 20140245821
    Abstract: An internal engine component including a data collector assembly is provided. The data collector assembly includes a sensor for sensing a condition and for generating a signal corresponding to the condition and a digital to analog converter for converting the signal to a digital signal. The data collector assembly also includes a memory for storing data, a clock and a processor. A power source is electrically connected to the sensor, the analog to digital converter, the memory, the clock and the processor. During an engine test, the processor, sensor, digital to analog converter, clock and memory are substantially the only devices that draw electricity from the power source.
    Type: Application
    Filed: March 4, 2013
    Publication date: September 4, 2014
    Applicant: Federal-Mogul Corporation
    Inventors: Andrew J. Miller, Jonathan Owen Neuendorf
  • Patent number: 8823400
    Abstract: A diagnostic method and system is described for diagnosing an operating condition of a conductive particulate matter sensor. The sensor has a substrate with electrical resistance that varies with temperature and two electrodes on the substrate adapted to collect particulate matter between the electrodes, thereby establishing an electrically conductive path through collected particulate matter between the electrodes that can be detected by measuring electrical resistance between the electrodes, Relect. The diagnosis is performed by heating the substrate in the area between the electrodes and using the resistance between the electrodes to determine detecting whether contamination is present on the surface of the sensor. Heat may be maintained on the sensor to attempt to burn off a detected contaminant, and a subsequent resistance reading may be used to determine if the contaminant was successfully burned off.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: September 2, 2014
    Assignee: Delphi Technologies, Inc.
    Inventors: Lary R. Hocken, Charles S. Nelson
  • Publication number: 20140150540
    Abstract: A multi-function sensor includes a body that includes a sensing circuit disposed on a substrate, the sensing circuit including a pressure sensor and a temperature sensor, the temperature sensor being disposed on a flexible portion of the substrate. A method of fabrication and additional embodiments are disclosed.
    Type: Application
    Filed: November 30, 2012
    Publication date: June 5, 2014
    Inventors: Joris Robert Jan Lenferink, Jorke Jellema, Paulus Thomas Johannes Gennissen
  • Patent number: 8725463
    Abstract: A frequency spectrum analyzing apparatus for performing a frequency spectrum analysis with respect to a detected value of an operating parameter of an internal combustion engine in synchronism with rotation of the engine, is provided. The operating parameter is sampled at predetermined time intervals, and a sampled value is converted to a digital value. Intensities of first and second elements are calculated with respect to a predetermined number of the sampled values. The first elements and second elements respectively correspond to a plurality of frequency components contained in the detected value, and a phase of the second element differs from a phase of the first element by 90 degrees. Frequency component intensities corresponding to the plurality of frequency components are calculated in synchronism with rotation of the engine, using the first element intensities and the second element intensities.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: May 13, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Natsuko Kitamura, Yoshiaki Akimoto, Jiro Takagi, Atsushi Kurauchi, Masayuki Yoshiiri, Hirotaka Komatsu, Kazuhiko Hirota, Makoto Murakami
  • Publication number: 20140116125
    Abstract: An internal combustion engine and a method wherein an oil filter is installed with a main filter element and a filter element for a pressure relief valve, then said oil filter is removed after use. The filter is opened and the filtered-out products are analyzed resulting from wear with respect to the qualitative and quantitative composition thereof and to ascertain the engine parts to which the products belong. During operation it is possible to determine the degree of wear of the parts and to increase the ecological and technical safety of the method.
    Type: Application
    Filed: January 13, 2012
    Publication date: May 1, 2014
    Inventor: Georgii Anatolievich Koltunov
  • Patent number: 8710973
    Abstract: A method is provided for determining remaining oil life prior to an oil change in an internal combustion engine that uses a body of oil. The method includes transferring the body of oil to the engine and determining a volume of the transferred body of oil. The method also includes determining quality of the transferred body of oil and determining the remaining oil life based on the determined quality and volume of the body of oil. The method additionally includes activating an oil change indicator when the remaining oil life reaches a predetermined level. A system for determining a number of engine revolutions permitted on a volume of oil is also disclosed.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: April 29, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Eric W. Schneider, Matthew J. Snider, Robert M. Olree, Eric R. Johnson
  • Patent number: 8607623
    Abstract: A method for detecting the blending level of biodiesel fuel in an internal combustion engine includes setting at least two post injection fuel quantity reference values respectively for known biodiesel blending percentage levels. A post injection fuel quantity value is evaluated and is compared with the at least two post injection fuel quantity reference value. A predetermined correlation set of values between the post injection fuel quantity value and a biodiesel blending level expressed by biodiesel percentage with respect to the petro-diesel is used to determine the biodiesel blending level.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: December 17, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Claudio Ciaravino, Giovanna Massetti
  • Patent number: 8612125
    Abstract: A method for acquiring operating data of an internal combustion engine in a control unit during a diagnostic function of the control unit, and for transmitting the operating data from the control unit to a diagnostics device, the operating data being determined in the control unit with the aid of sensors assigned to the internal combustion engine. Desired operating data type and time resolution of the value reception is transmitted from the diagnostic device. Operating data are collected in the control unit with the aid of a diagnostic function. The diagnostics device and the control unit are connected via standardized interfaces, whose transmission speed is limited. Data values are buffered in a memory in the control unit. Speed of data acquisition may be selected independently of the transmission speed of the interface between the control unit and the diagnostics device. Data acquisition synchronous with the rotational speed is possible.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: December 17, 2013
    Assignee: Robert Bosch GmbH
    Inventor: Johannes Zeidler
  • Publication number: 20130298652
    Abstract: Disclosed are devices and methods for detecting and relaying operating parameters of equipment, devices or liquid, gaseous or solid materials. Embodiments of the invention may be utilized to determine whether equipment is operating within established operating parameters or to detect other characteristics of the equipment, device or material being monitored.
    Type: Application
    Filed: May 8, 2013
    Publication date: November 14, 2013
    Inventor: William J. Gillette, II
  • Publication number: 20130298654
    Abstract: In a method for diagnosing a valve in a fluid supply line to a suction line of an air system of a combustion engine, the fluid supply line being is part of an exhaust-gas recirculation system or a crankcase ventilation system, when the valve is actuated, a first pressure in the suction line is monitored for change, and an error of the valve is detected if the change of the first pressure lies outside a specific reference range when the valve is actuated.
    Type: Application
    Filed: May 6, 2013
    Publication date: November 14, 2013
    Applicant: ROBERT BOSCH GMBH
    Inventors: Matthias HEINKELE, Michael DRUNG, Martin KROENER
  • Publication number: 20130291629
    Abstract: An engine wear detection system includes (a) detector for generating a signal correlated with the rotation of a rotary member of an engine; (b) a processor for processing said signal to determine the number of rotations performed by the rotary member; and, (c) a cyclometer display for visually displaying the cumulative number of rotations.
    Type: Application
    Filed: May 4, 2012
    Publication date: November 7, 2013
    Applicant: Michael Falzarano and Associates, Inc.
    Inventor: Michael Falzarano
  • Patent number: 8564450
    Abstract: An object is set to move back and forth between a first position and a second position in a cylinder. A measurement point between the first position and the second position is preset. A counted period indicating a duration that the object moves from the first position to the first measurement point is obtained. Then a movement behavior parameter is obtained according to the counted period. Whether the movement behavior parameter of the object matches a specified condition is determined. If matching occurs, a warning message is generated.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: October 22, 2013
    Assignee: United Microelectronics Corp.
    Inventors: Wei-Chen Hsin, Ko-Wen Chiu
  • Patent number: 8555702
    Abstract: A method recognizes at least one feature of fuel in an internal-combustion engine (1). The method comprises steps of: detecting, by at least one sensor, intensity (S) of vibrations generated by the internal-combustion engine (1) within a measurement-time window; determining a value of at least one synthetic index (I) by processing the intensity (S) of the vibrations generated by the internal-combustion engine (1) within the measurement-time window; comparing a synthetic index (I) with at least one predetermined comparison quantity (TH); and recognizing the feature of the fuel as a function of the comparison between the synthetic index (I) and comparison quantity (TH).
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: October 15, 2013
    Assignee: Magneti Marelli S.p.A.
    Inventors: Stefano Sgatti, Alberto Bucci, Nicolo′ Cavina, Marco Cesaroni, Filippo Cavanna, Ludovico Ausiello
  • Publication number: 20130239545
    Abstract: A rocket engine with a manifold is in communication with a combustion chamber. A sense line extends through the propellant manifold and into the combustion chamber. The sense line includes a venturi arranged downstream from the combustion chamber, and at least one aperture fluidly connecting the propellant manifold to a sense-line passageway downstream from the venturi. A method of sensing conditions in a combustion chamber includes exposing an end of a sense line to the combustion chamber, creating a low static pressure in the sense line at a location upstream from the end, introducing a fluid at the location to purge the sense line, and sensing the conditions downstream from the location.
    Type: Application
    Filed: March 14, 2012
    Publication date: September 19, 2013
    Inventor: Jim A. Clark
  • Publication number: 20130174654
    Abstract: A device for detecting at least one flow characteristic of a fluid medium, in particular for detecting an air mass flow in the intake air of a motor vehicle, includes at least one flow channel, through which the fluid medium may flow, and at least one sensor element, which is situated in the flow channel, for detecting the flow characteristic. The sensor element has at least one heating element. The device includes at least one bidirectional electrical interface. The device is configured to receive information and transmit information via the bidirectional electrical interface.
    Type: Application
    Filed: January 2, 2013
    Publication date: July 11, 2013
    Inventors: Norbert SCHNEIDER, Eckart REIHLEN, Uwe KONZELMANN, Michael RITTMANN, Lutz WESTENBERGER, Hans BEYRICH
  • Patent number: 8428912
    Abstract: A test stand sensor apparatus includes a sensor for acquiring data from the item under test and/or the environment, a power supply unit for converting electromagnetic radiation into electrical energy, and a unit for the wire-free transmission of sensor data and of a code which is characteristic of the sensor.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: April 23, 2013
    Assignee: AVL List GmbH
    Inventor: Werner Neuwirth
  • Patent number: 8413517
    Abstract: A fuel cell system may include a fuel cell stack, a manifold in fluid communication with the stack, and a pressure sensor. The pressure sensor may include a housing defining a chamber in fluid communication with the manifold, a pressure sensing element disposed within the chamber, and a heating element disposed within the chamber.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: April 9, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Suriyaprakash Ayyangar Janarthanam, William F. Sanderson
  • Patent number: 8417484
    Abstract: A method for diagnosing a bypass valve in a bypass line for an intercooler in a supercharger for an internal combustion engine, including the following steps: ascertaining a value of an efficiency of the intercooler as the reference efficiency; actuating the bypass valve to open the bypass valve; ascertaining a value of a further efficiency of the intercooler as the diagnosis efficiency after actuating the bypass valve to open; and detecting a malfunction of the bypass valve when the absolute value of the deviation between the reference efficiency and the diagnosis efficiency is less than a specified threshold value.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: April 9, 2013
    Assignee: Robert Bosch GmbH
    Inventor: Marc Ringeisen
  • Patent number: 8205489
    Abstract: An engine ECU executes a program including: detecting a magnitude of vibration of an engine; detecting a vibration waveform of the engine based on the magnitude; calculating a correlation coefficient, in the case where the engine speed is smaller than a threshold value, using the sum of values each determined by subtracting a positive reference value from a magnitude of a knock waveform model, as an area of the knock waveform model and, calculating the correlation coefficient, in the case where the engine speed is not smaller than the threshold value, using the area of the whole knock waveform model; and determining whether or not knocking has occurred using the correlation coefficient. The correlation coefficient is calculated by dividing by the area the sum of differences that are each the difference between the magnitude on the vibration waveform and the magnitude on the knock waveform model.
    Type: Grant
    Filed: May 27, 2008
    Date of Patent: June 26, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Rihito Kaneko, Kenji Kasashima, Masatomo Yoshihara, Kenji Senda, Norihito Hanai, Yasuhiro Yamasako, Yuichi Takemura
  • Publication number: 20120011924
    Abstract: This device includes an outer casing having: a first tubular zone (16) to the inside of which a finger (4) is fastened; a second tubular zone (40) of larger outside diameter than that of the first tubular zone (16) and extending the first tubular zone (16); and an elastically deformable part (18) of annular shape, extending in a plane transverse to the first tubular zone (16) and connecting the first tubular zone (16) to the second tubular zone (40). The pressure sensor (8) is placed between, on one side, an element (30) integral with the finger and, on the other side, a fixed element (20), called an interface, which is integral with the second tubular zone (40).
    Type: Application
    Filed: September 4, 2009
    Publication date: January 19, 2012
    Applicants: FEDERAL-MOGUL ITALY SRL, CONTINENTAL AUTOMOTIVE FRANCE
    Inventors: Alain Ramond, John Burrows, Sandro Goretti
  • Patent number: 8060275
    Abstract: An on-board diagnostic system of a vehicle comprises disabling diagnostic operation, such as a misfire monitor, based on road roughness. In one example, the disabling of the diagnostic operation is based on brake actuation and degradation of an anti-lock braking system.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: November 15, 2011
    Assignee: Ford Global Technologies, LLC
    Inventors: Jahan Asgari, Timothy Feldkamp, Craig Stephens, Moses Fridman, Davor Hrovat, Arthur Varady, Mitch McConnell
  • Patent number: 8026105
    Abstract: A method for identifying a lubricant composition that reduces the propensity for knock in an engine. The lubricant composition is mixed with a solvent to reduce the viscosity of the lubricant composition, thereby forming a lubricant-solvent mixture having a viscosity similar to or less than that of engine fuel. A sample of a lubricant-solvent mixture is then subjected to a constant volume combustion test to determine the reactivity associated with the lubricant-solvent mixture. The test is repeated for a range of lubricant-solvent ratios, and statistical methods are used to calculate the reactivity of the lubricant composition without solvent.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: September 27, 2011
    Assignee: Southwest Research Institute
    Inventors: Manfred Amann, Terrence F. Alger, II
  • Patent number: 8006545
    Abstract: A method of real-time analysis of an engine, comprising sensing a temperature within a chamber of the engine with a thermocouple sensor disposed on a spark plug operating within the chamber, the thermocouple sensor generating a first signal based upon the temperature within the chamber; detecting current on a wire coupled to the sparkplug with a sensor, the sensor generating a second signal based upon current detected on the wire; converting the first and second signal into a first and second optical signal respectively utilizing one or more signal conditioners; generating a first and second digital signal based upon the first and second optical signal respectively with a receiver; and transmitting the first and second digital signal to an analysis device to generate a display of the temperature as it relates to engine speed at a first time in response to the receipt of the first and second digital signal.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: August 30, 2011
    Assignee: Honeywell International Inc.
    Inventors: Tom Adkins, Matthew B. Below
  • Patent number: 8000934
    Abstract: A method and a device for diagnosing an ascertainment of a performance quantity of an internal combustion engine. Within the scope of a first diagnostic process a first value which is characteristic of a first performance quantity of the internal combustion engine ascertained at a first point in time after switching off the internal combustion engine is compared to a predefined value, and an error is identified when in the comparison it is detected that the absolute value of a first difference between the first value and the predefined value exceeds a predefined first threshold value for the first point in time. The predefined first threshold value is predefined to be smaller the longer the time since the internal combustion engine has been switched off.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: August 16, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Achim Oberascher, Damien Bouvier
  • Publication number: 20110146391
    Abstract: In a method for performing diagnostics on line systems, in particular crank casing venting systems of internal combustion engines, a correction value for an operating parameter of the internal combustion engine is formed in each of at least two chronologically successive determining steps. The correction values or values which are derived therefrom are used to detect a faulty state of the line system.
    Type: Application
    Filed: December 20, 2010
    Publication date: June 23, 2011
    Applicant: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT
    Inventors: OLAF JACH, JOERG OBERBECK
  • Patent number: 7962271
    Abstract: An analysis tool which extracts all the available parameter identifications (i.e. PIDS) from a vehicle's power train control module for diagnostic decisions. This is done by checking these PIDS and other information (e.g., calculated PIDS, Break Points, charts and algorithms) in three states; key on engine off, key on engine cranking, key on engine running. In all three modes the tool is comparing the live data from PIDS and voltage to the other information (e.g., Break Points). If any of this data are outside the programmed values a flag is assigned to the failure or control problem. The relationship between a particular PID and its associated preprogrammed value(s) may be indicated by a light. The depth of the problem (if any) is conveyed by the color of the light. Also included are tests/charts for fuel trim, engine volumetric efficiency, simulated injector, power, catalyst efficiency, and engine coolant range.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: June 14, 2011
    Inventors: Bernie C. Thompson, Noal R. Pederson
  • Patent number: 7954363
    Abstract: An improved method for detection of engine faults especially suited for use on ships. The method is in particular related to the detection of a fault in an internal combustion engine having within the housing a crankshaft connected to a piston. The method includes determination of a pressure difference between the housing and the area outside the housing. If comparison of the pressure difference with a fault indicating pressure difference limit shows that the pressure difference is greater than the fault indication pressure difference limit then the presence of the fault is indicated. According to the method is in the pressure difference determined by comparing the pressure existing in the housing with the pressure of the area outside the housing, while attenuating pressure changes of the area outside the housing, so that pressure changes having a duration equal to or less than a defined fault characteristic period of time are supposed.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: June 7, 2011
    Assignee: Danfoss A/S
    Inventor: Ole Friis-Knudsen
  • Patent number: 7953530
    Abstract: An analysis tool which extracts all the available parameter identifications (i.e. PIDS) from a vehicle's power train control module for diagnostic decisions. This is done by checking these PIDS and other information (e.g., calculated PIDS, Break Points, charts and algorithms) in three states; key on engine off, key on engine cranking, key on engine running. In all three modes the tool is comparing the live data from PIDS and voltage to the other information (e.g, Break Points). If any of this data are outside the programmed values a flag is assigned to the failure or control problem. The relationship between a particular PID and its associated preprogrammed value(s) may be indicated by a light. The depth of the problem (if any) is conveyed by the color of the light. Also included are tests/charts for fuel trim, engine volumetric efficiency, simulated injector, power, catalyst efficiency, and engine coolant range.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: May 31, 2011
    Inventors: Neal R. Pederson, Bernie C. Thompson