Testing Of An Individual Engine Part Patents (Class 73/114.77)
  • Patent number: 10809301
    Abstract: The present disclosure relates to a belted transmission system configured to couple with load motors to provide a load to a device under test. The belted transmission system comprises a spindle coupled with the device under test. The spindle comprises various components configured to facilitate high operational speeds and increased power relative to prior art systems. For example, the spindle comprises a shaft having a larger diameter at one end compared to the other, one or more bearings configured to facilitate rotation of the shaft, and a sprocket coupled to the shaft configured to receive belts coupled to load motors such that the shaft is driven by the one or more belts to turn the spindle and load the device under test. The belted transmission includes a housing configured to enclose the belts and at least a portion of the spindle.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: October 20, 2020
    Assignee: D&V ELECTRONICS, LTD.
    Inventors: Philip Humphrey, William Clandfield
  • Patent number: 10598092
    Abstract: An turbocharger for a vehicle is provided. The turbocharger includes a shaft that has a hollow aperture at an inside thereof and an outer circumferential surface of the shaft includes an inlet aperture and an outlet aperture which communicate with the hollow aperture. A turbine wheel is integrally installed at the shaft and a hollow groove formed in the wheel communicates with the hollow aperture. A center housing includes a shaft groove in which the shaft is rotatably installed. The center housing includes an oil passage to which oil is supplied from an oil pipe, an air passage to which air is supplied from an air tank, and an injection passage extending to the shaft groove while being connected to the oil and air passages. An oil valve and an air valve are installed in the oil and air passages, respectively, to selectively open/close flow of a fluid.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: March 24, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Woo Jin Lee
  • Patent number: 10451085
    Abstract: A method of assembling an electrified turbocharger comprising assembling a rotor assembly onto a shaft; balancing the shaft and rotor assembly; attaching at least one bearing onto the shaft adjacent the rotor assembly; inserting a stator assembly into a first housing component; axially inserting the shaft, the rotor assembly, and the at least one bearing into the first housing component; attaching a second housing component to the first housing component; attaching a compressor wheel to a first end of the shaft; and attaching a turbine wheel to a second end of the shaft and balancing the electrified turbocharger.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: October 22, 2019
    Assignee: BorgWarner Inc.
    Inventors: Andrew Taylor, Alex Milburn
  • Patent number: 10444118
    Abstract: A method of evaluating a wear state of an assembly of a flow machine, in particular, of a bearing arrangement of a pump or turbine. For determining a wear characteristic, a mechanical query signal having a pre-definable signal shape is generated by a signal generator and a response signal generated from the query signal is detected using a sensor in contact with the assembly. The response signal is varied in dependence on a variation of a physical operating value of the assembly in accordance with a characteristic pattern, the wear characteristic is determined from the variation of the response signal and the wear state is evaluated using the wear characteristic.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: October 15, 2019
    Assignee: SULZER MANAGEMENT AG
    Inventors: Frank May, Simon Gassmann
  • Patent number: 10330567
    Abstract: In a method for the automated monitoring of a machine with a rotating machine component, at successive measurement times parameter values (Pt) of operating parameters of the machine and in each case over a predefined measurement duration, vibrations of the machine are recorded. A vibration spectrum (Yt(f)) of the vibrations recorded during the measurement duration is determined for each measurement duration. A mean power density (?t(i)) of the vibration spectrum (Yt(f)) is in each case determined from the vibration spectrum (Yt(f)) for a multiplicity of frequency ranges. During a learning phase a model function ({circumflex over (?)}(1)(P) to {circumflex over (?)}(N)(P)) for an averaged power density is determined for each frequency range as a function of the operating parameters.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: June 25, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventor: Henning Ochsenfeld
  • Patent number: 10160432
    Abstract: A method for actuating an electric vacuum pump of a brake booster including indirectly ascertaining a negative pressure in the brake booster. Depending on the indirectly ascertained negative pressure, and on a pumping capacity of the vacuum pump, ascertaining at least one activation parameter for the vacuum pump. Activating the vacuum pump in accordance with the activation parameter, when the indirectly ascertained negative pressure drops below a predefined minimum value.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: December 25, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Ian Moore, Christian Schmaler, Matthias Baumann
  • Patent number: 9987750
    Abstract: A vehicle part test device includes a first operating portion rotatably mounted to a robot for testing a vehicle part; a second operating portion rotatably mounted to the first operating portion; and a third operating portion rotatably mounted to the second operating portion and having a test portion which tests the vehicle part.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: June 5, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventor: Jung Whan Yeum
  • Patent number: 9740993
    Abstract: A method of detecting anomalies in the service repairs data of equipment. A failure mode-symptom correlation matrix correlates failure modes to symptoms. Diagnostic trouble codes are collected for an actual repair for the equipment. The diagnostic trouble codes are provided to a diagnostic reasoner for identifying failure modes. Diagnostic assessment is applied by the diagnostic reasoner for determining the recommended repairs to perform on the equipment in response to identifying the failure modes. Each of the recommended repairs is compared with the actual repair used to repair the equipment. A mismatch is identified in response to any recommended repair not matching the actual repair. Reports are generated for displaying all of the identified mismatches. The reports are analyzed for determining repair codes having an increase in a number of anomalies. Service centers are alerted of a correct repair for the identified failure mode.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: August 22, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Satnam Singh, Pulak Bandyopadhyay, Calvin E. Wolf
  • Patent number: 9599582
    Abstract: A resistance circuit for monitoring a support structure is provided. The resistance circuit may include a first set of resistors disposed at a belt-side and a second set of resistors disposed at a monitor-side. The first set of resistors may be configured to indicate one or more voltages thereacross corresponding to an effective resistance of the support structure. The first set of resistors may include at least one temperature-dependent resistor. The second set of resistors may be configured to indicate one or more voltages thereacross corresponding to an initial effective resistance of the support structure. The second set of resistors may include at least one switched resistor having an adjustable resistance capable of selectively approximating the initial effective resistance.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: March 21, 2017
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Richard N. Fargo, Peter Liaskas
  • Patent number: 9423369
    Abstract: A monitoring system for a support structure is provided. The monitoring system may include a resistance circuit coupled to the support structure, and an interface circuit coupled to the resistance circuit. The resistance circuit may include a first set of resistors and a second set of resistors, wherein the second set of resistors is configured to provide a reference voltage. The interface circuit may include one or more comparators, wherein each comparator is configured to compare a voltage across at least one of the resistors with the reference voltage and generate an output signal corresponding to the comparison. The interface circuit may be configured to continuously monitor an effective resistance of the support structure based on the output signals.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: August 23, 2016
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Richard N. Fargo, Peter Keyo
  • Patent number: 9377378
    Abstract: A system and method for testing and maintaining a power assembly of a locomotive diesel engine. In one embodiment of the invention, the testing apparatus comprises: a first test position for securing a strongback of a power assembly; a second test position for securing a cylinder head of the power assembly; and a third test position for securing a cylinder liner. In another embodiment of the invention, the testing method comprises: securing a power assembly to a first test position; removing a cylinder head from the power assembly; securing the cylinder head to a second test position; removing a cylinder liner from the strongback assembly; placing the cylinder liner into the third test position; cleaning the cylinder liner; testing the cylinder head for possible leakage; and re-assembling the power assembly cylinder head passes the leakage tests.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: June 28, 2016
    Assignee: NORFOLK SOUTHERN CORPORATION
    Inventors: Patrick E. Keister, Jeff M. Cutright
  • Patent number: 9038448
    Abstract: The invention relates to a monitoring apparatus for monitoring a state of wear of a component of a reciprocating piston internal combustion engine wherein an oil collection device is provided for the collection of lubrication oil from the cylinder so that a predetermined measured quantity of lubrication oil is suppliable from the cylinder to a measurement device.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: May 26, 2015
    Assignee: Wärtsilä Schweiz AG
    Inventors: Francesco Micali, Matthias Stark, Markus Weber
  • 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: 9008948
    Abstract: A fuel injection control apparatus includes a low-side driver, arranged electrically downstream of an injector and operable to drive the injector with a changeover of an ON-OFF state thereof in response to a drive signal from a CPU; a high-side driver, arranged electrically upstream of the injector and downstream of a power source, and having an ON-OFF state thereof which may be changed in response to the drive signal from the CPU; a high-side return signal detection unit and a low-side return signal detection unit. Each of the low-side and high-side drivers includes a transistor arranged inside an ECU. The CPU diagnoses a function of a drive circuit based on the presence or non-presence of return signals received from the high-side return signal detection unit and the low-side return signal detection unit with respect to predetermined driving states of both the low-side and high-side drivers.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: April 14, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventor: Kenichi Machida
  • Patent number: 9004050
    Abstract: Embodiments for indicating fuel rail temperature sensor degradation are provided. In one embodiment, an engine method comprises delivering gaseous fuel to a cylinder based on feedback from a fuel rail temperature sensor, and during select conditions, indicating fuel rail temperature sensor degradation based on a difference between measured fuel rail temperature and an expected temperature. In this way, measured fuel rail temperature may be correlated with other engine temperatures to detect sensor degradation.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: April 14, 2015
    Assignee: Ford Global Technologies, LLC
    Inventor: Ross Dykstra Pursifull
  • Patent number: 8997559
    Abstract: A method for diagnosing a blowoff valve in an engine system having a supercharged internal combustion engine, the blowoff valve being situated in a blowoff line around a compressor of a supercharging device, by performing the following: detecting a compressor rotational speed indication of the supercharging device; and determining a malfunction of the blowoff valve if the compressor rotational speed indication includes an oscillation after the blowoff valve is activated for opening the blowoff valve.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: April 7, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Martin Brandt, Thomas Bleile, Patrick Menold, Andreas Huber
  • Patent number: 8991243
    Abstract: A method for testing a supercharger actuator for a supercharger of a supercharged internal combustion engine, including adjusting the supercharger actuator from a first position to a second position, determining a rotational speed change information, which is a function of the change of the rotational speed of the supercharger resulting from the adjustment, and establishing a malfunction of the supercharger actuator as a function of the rotational speed change information.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: March 31, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Thomas Bleile, Patrick Menold
  • Publication number: 20150034030
    Abstract: A cam target wheel for a camshaft of an internal combustion engine is disclosed. The cam target wheel includes a first half-wheel and a second half-wheel. The first and second half-wheels are provided with connecting means for their reciprocal connection.
    Type: Application
    Filed: July 30, 2014
    Publication date: February 5, 2015
    Inventors: Daniel Schnoelzer, Robert Wartanian
  • Patent number: 8939019
    Abstract: A holding device for a fuel injector has a mounting device to accommodate the fuel injector, and a fixing device which has a first part and a second part, which are supported in a guidance in a displaceable manner with respect to the mounting device. The second part is fixable on the guidance and between the first part and the second part of the fixing device an elastic element is situated in such a way that it is in a position to press the first part of the fixing device against a fuel injector situated in the mounting device, in order to fix it in the holding device. Also described is a clamping device for fuel injectors having at least one holding device, which is fastened elastically to the clamping device.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: January 27, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Sven Kordass, Joerg Staib, Reinhard Hoss, Neela Lohith Paruchuri
  • Publication number: 20140366615
    Abstract: The invention relates to a method for diagnosing the malfunctioning of a device for adding an additive into a fuel for a vehicle comprising an internal combustion engine, said method including: a step of analyzing the fuel in order to determine a variation in the amount of additive in the fuel; a step of comparing the variation in the amount of additive, measured during the previous step, with a theoretical variation in said amount; a step of sending information when the difference between the measured variation and the theoretical variation exceeds a set value. The invention also relates to a system for adding an additive into fuel and for diagnosis for a vehicle comprising an internal combustion engine, which is intended for implementing said method.
    Type: Application
    Filed: January 4, 2013
    Publication date: December 18, 2014
    Applicant: FILTRAUTO SA
    Inventors: Virginie Harle, Michael Lallemand, Thierry Seguelong, Guy Monsallier
  • Patent number: 8881713
    Abstract: Methods and systems are provided for an engine including a humidity sensor. Degradation of the humidity sensor may be determined based on a change in intake air relative humidity as compared to a change in intake air temperature or pressure, under selected conditions. An amount of exhaust gas recirculated to an engine intake is adjusted differently based on whether the humidity sensor is degraded or functional.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: November 11, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Imad Hassan Makki, Michael James Uhrich, Timothy Joseph Clark, James Michael Kerns, Robert Roy Jentz
  • Patent number: 8850878
    Abstract: Various methods and systems are provided for a turbocharger. In one example, a method includes receiving a signal indicative of a monitored pressure of a pressurized oil supply of a turbocharger or other turbomachine. The method further includes determining whether a high frequency component of the signal meets one or more designated criteria, and, if the high frequency component of the pressure meets the one or more designated criteria, generating a first control signal.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: October 7, 2014
    Assignee: General Electric Company
    Inventors: Paul Lloyd Flynn, Bret Dwayne Worden, Matthew John Malone, Milan Karunaratne
  • 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
  • Patent number: 8843348
    Abstract: A system and method are provided for determining the health of an engine. The method includes a plurality of standard noise spectra collected from engines with known defects. A noise spectrum of the engine being monitored is sensed and compared to the plurality of standard noise spectra from the engines with known defects. From the comparison, a type and a degree of defect is identified based upon the comparison.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: September 23, 2014
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Victor Pascu, Jay M. Francisco
  • Patent number: 8820048
    Abstract: A system for detecting pollution by a poisonous material for an air exhauster of a vehicle may include a temperature sensor provided to the flow line of an exhaust gas and having a catalyst material that causes an exothermic reaction with a pollution material in the exhaust gas, and a controller which stores a standard temperature value of the temperature sensor and operates in such a manner that the exhaust gas may be heated under control of an engine control unit when the temperature value drops by a predetermined amount from the standard temperature value, and that the catalyst material may be determined to have deteriorated when a measured temperature value after heating may be less than the standard temperature value, so that the standard temperature value may be replaced with the measured temperature value, and to a detection method using the same.
    Type: Grant
    Filed: December 11, 2011
    Date of Patent: September 2, 2014
    Assignees: Hyundai Motor Company, Kia Motors Corp.
    Inventor: Jung Min Seo
  • Patent number: 8763448
    Abstract: A fan coupling device 1 connecting an internal combustion engine 31 to a cooling fan 21 comprises an input shaft 3 driven to rotate by the engine 31, a fluid coupling 12 that transmits torque from the input shaft 3 to the cooling fan 21 via a fluid, and a solenoid valve 13 having a valve main body 18 that adjusts a fluid amount in the fluid coupling 12. A determination as to whether or not the valve main body 18 is stuck in a lifted position on the basis of a rotation speed of the cooling fan 21, is started after the elapse of a predetermined time following output of a signal for returning the valve main body 18 to a closed position, The sticking determination can be performed with a high degree of precision without being affected by variation in the rotation speed of the input shaft 3.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: July 1, 2014
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yuzo Kageyama, Mitsuhiko Kubota, Takashi Nakazawa
  • Patent number: 8739616
    Abstract: A method for diagnosing a sensor unit of an internal combustion engine, in which an output signal of the sensor unit is compared to a setpoint value which is specified independently from the output signal. The setpoint value relates to a periodic characteristic, and the variation over time of the value of the output signal of the sensor unit or a variable which is derived from the value variation over time is analyzed with regard to this periodic characteristic.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: June 3, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Horst Wagner, Slobodanka Lux, Martin Hoerner
  • Publication number: 20140144221
    Abstract: A testing apparatus for a turbocharger is provided. In one example, the testing apparatus comprises a regulatable air input source configured to fluidically couple to one of an oil inlet or an oil outlet of an oil structure cavity of the turbocharger, an air flow measurement device including a flow restrictor which is configured to be coupled to the regulatable air input source, and media embodying instructions for correlating an amount of measured air flow measured by the air flow measurement device to a degree, rate, and/or amount of leakage past a turbocharger bearing component configured to restrict flow to or from the oil structure cavity.
    Type: Application
    Filed: January 30, 2014
    Publication date: May 29, 2014
    Applicant: General Electric Company
    Inventor: Matthew John Malone
  • Patent number: 8701477
    Abstract: Various methods and systems are provided for a turbocharger. In one example, a method includes determining a first pressure at a first location within a turbocharger and determining a second pressure at a second location within the turbocharger. The method further includes indicating degradation of the turbocharger based on the first pressure and the second pressure.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: April 22, 2014
    Assignee: General Electric Company
    Inventors: Matthew John Malone, Kendall Roger Swenson, Neil Blythe, Milan Karunaratne, Bret Dwayne Worden, Paul Lloyd Flynn
  • Patent number: 8677748
    Abstract: An apparatus includes an operating conditions module that interprets a number of compressor operating parameters; a compressor flow module that determines a compressor inlet flow in response to the number of compressor operating parameters; and a fresh air flow module that provides a fresh air flow value in response to the compressor inlet flow. The operating conditions module further interprets a current mass air flow value, and the apparatus further includes a mass air flow sensor trimming module that adjusts a mass air flow sensor drift value in response to the current mass air flow value and the fresh air flow value. The apparatus includes a diagnostics module that determines a mass air flow sensor is failed in response to the current mass air flow value and the fresh air flow value.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: March 25, 2014
    Assignee: Cummins Inc.
    Inventors: Indranil Brahma, Ashwin Vyas, Vivek Anand Sujan, Phanindra Garimella, John N. Chi, Abdoul Karim Abdoul Azizou
  • Patent number: 8671744
    Abstract: The present invention features an engine pulley testing device allowing a user to detect a damaged engine pulley. The engine pulley testing device comprises a first support arm and a second support arm pivotably attached to a front side of a top panel, a third support arm pivotably attached to a top panel on a back side of the top panel. A top pulley is attached on the top panel and a first bottom pulley and second bottom pulley are attached to the first and second support arms respectively. An engine belt can be wrapped around the pulleys and a testing pulley for testing. The engine pulley testing device may be attached on a sliding rail to slide to a desired working position.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: March 18, 2014
    Inventor: Lawrence Andrew Laricchiuta
  • Patent number: 8671743
    Abstract: A test equipment manifold interface for automated test equipment (ATE) for testing electronic circuits by both Device Under Test Thermal Management (DTM) and non-DTM testing. The manifold interface has a housing, with an air inlet aperture, outlet apertures, and a chamber. The chamber has a chamber inlet provided by the air inlet aperture and a chamber outlet coupled to the outlet apertures. A hollow piston is captive in the chamber. The piston has DTM interface inlet and outlet apertures. In operation, when a DTM load board manifold engages the manifold interface, the hollow piston directs air to flow from the air inlet aperture to the DTM interface outlet aperture. When the DTM load board manifold disengages the manifold interface, the hollow piston directs air to flow from the air inlet to the outlet apertures via the chamber outlet.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: March 18, 2014
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Bharathi Ranjit Singh, Azmi Rashid, Kathirawan Santhinan
  • Patent number: 8661876
    Abstract: A testing apparatus for a turbocharger is provided. The turbocharger includes a turbine and a compressor, and a non-contact seal positioned between an oil cavity and one of the turbine and the compressor. In one embodiment, the testing apparatus includes a regulatable air input configured to couple to an outlet of the oil cavity, the regulatable air input coupled to an air supply, and a flow restrictor with at least one pressure gauge coupled to the regulatable air input. The kit includes media embodying instructions that specify correlating an amount of flow to a degree, rate, or amount of leakage past the non-contact seal.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: March 4, 2014
    Assignee: General Electric Company
    Inventor: Matthew John Malone
  • Patent number: 8661883
    Abstract: A diagnostic test for a secondary air system comprising an air pump, a first mass air flow sensor connected to the air pump and a first check valve connected to the first mass air flow sensor. A first testing phase is disclosed comprising a first delay period and a first testing period, wherein the air pump is activated. A second testing phase is disclosed comprising a second delay period and a second testing period wherein the first check valve is opened. A third testing phase comprising a third delay period and a third testing period is disclosed wherein the first check valve is closed. A fourth testing phase is disclosed comprising a fourth delay period and a fourth testing period wherein the air pump is deactivated. An optional fifth testing phase is also disclosed comprising a fifth delay period and a fifth testing period wherein the air pump remains off but the check valve is reopened and engine RPMs are increased.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: March 4, 2014
    Assignee: Chrysler Group LLC
    Inventors: Mark S. Kado, Zulfeqar Ali Kosgi
  • Publication number: 20140053642
    Abstract: A method and a device for measuring the rotational speed of a turbocompressor, in particular a turbocharger of a motor vehicle. A frequency of pressure pulses generated in the medium the blades or by the shaft of the turbocompressor is measured using high-frequency signal portion of a pressure sensor, and the turbocompressor rotational speed is ascertained from the measured pressure pulse frequency. Furthermore, the charge pressure of the turbocompressor can be ascertained from the low-frequency signal of the pressure sensor so that a single sensor is sufficient for both measurements. The pressure sensor can be arranged in the intake system downstream of the compressor, upstream or downstream of an intercooler.
    Type: Application
    Filed: April 5, 2012
    Publication date: February 27, 2014
    Inventors: Willibald Reitmeier, Bernd Siewert, Manfred Weigl, Andreas Wildgen
  • Patent number: 8627714
    Abstract: A method for preventing the rupture of a compressor wheel and/or turbine wheel of an exhaust-gas turbocharger of a motor vehicle includes establishing loading limit values (n(G)) for the compressor wheel and/or the turbine wheel in bench tests. The method further includes determining loading variables (n) for the compressor wheel and/or turbine wheel during the operation of the exhaust-gas turbocharger in the motor vehicle. In addition, the method includes processing the determined loading variables (n) in order to establish a loading characteristic value (n(i)) which represents real exhaust-gas turbocharger operation. Further, the method includes comparing the loading limit value (n(G)) with the loading characteristic value (n(i)). The method also includes outputting a warning (W) if the comparison of the loading limit value (n(G)) with the loading characteristic value (n(i)) yields an exceedance of a predefinable safety margin.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: January 14, 2014
    Assignee: BorgWarner Inc.
    Inventor: Ralf Christmann
  • Publication number: 20130283898
    Abstract: A vacuum system diagnostic is disclosed. In one example, vacuum system leaks are diagnosed via a pressure reading of a vacuum reservoir. The approach may reduce the number of sensors used to diagnose vacuum system degradation.
    Type: Application
    Filed: June 25, 2013
    Publication date: October 31, 2013
    Inventors: John Eric Rollinger, Ross Dykstra Pursifull
  • Patent number: 8567238
    Abstract: A method for determining the rotation speed of at least one supercharger which compresses the sucked air in an internal combustion engine; the control method, during the normal operation of the internal combustion engine, comprises the steps of detecting, by means of a microphone, the intensity of a sound signal generated by the rotation of the supercharger; determining a frequency content of the sound signal generated by the rotation of the supercharger; identifying the frequencies with maximum amplitude within the frequency content of the sound signal generated by the rotation of the supercharger; recognising the frequencies with maximum amplitude which are each other's multiples or submultiples; and determining the rotation speed of the supercharger using exclusively the frequencies with maximum amplitude which are each other's multiples or submultiples.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: October 29, 2013
    Assignee: Magneti Marelli S.p.A.
    Inventors: Gabriele Serra, Matteo De Cesare, Federico Stola
  • Patent number: 8549902
    Abstract: On the basis of a correlation between exhaust gas temperature detected by an exhaust gas temperature sensor and exhaust gas temperature estimated according to an engine operating condition, it is detected whether or not abnormality occurs in the exhaust gas temperature sensor. Namely, when a change characteristic of the detected exhaust gas temperature follows a change characteristic of the estimated exhaust gas temperature, it is determined that the exhaust gas temperature sensor is normal. On the other hand, when the change characteristic of the detected exhaust gas temperature does not follow that of the estimated exhaust gas temperature, it is determined that the exhaust gas temperature sensor is abnormal.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: October 8, 2013
    Assignee: UD Trucks Corporation
    Inventors: Hideki Matsunaga, Toshikazu Katou
  • Patent number: 8505372
    Abstract: A cam target wheel for a vehicle may include a camshaft; and a lobe, formed on an outer circumferential surface of the camshaft, for recognizing a ridge and valley of a cam vibration waveform.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: August 13, 2013
    Assignee: Hyundai Motor Company
    Inventors: Myung Rae Cho, Hong Wook Lee, Sang Hee Lee
  • Patent number: 8490468
    Abstract: Provided is a failure diagnosis system which can diagnose whether or not a sensitivity adjustment part is in failure. The failure diagnosis system includes: a plurality of sensors; various sensors that detect operating conditions of a device; a plurality of sensitivity adjustment parts that adjust receiver sensitivities of sensor signals from the plurality of sensors based on the detected operating conditions; and a failure diagnosis part that diagnoses whether or not the plurality of sensitivity adjustment parts are in failure. The failure diagnosis part detects a failure condition of a sensitivity adjustment part when a difference between a comparison value calculated based on a maximum value of the adjusted sensor signals from the plurality of sensitivity adjustment parts at a given interval, and a maximum value of the adjusted sensor signal from the sensitivity adjustment part to be diagnosed at the given interval is larger than a given amount.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: July 23, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventor: Kimihiko Tanaya
  • Patent number: 8468879
    Abstract: A vacuum system diagnostic is disclosed. In one example, vacuum system leaks are diagnosed via a pressure reading of a vacuum reservoir. The approach may reduce the number of sensors used to diagnose vacuum system degradation.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: June 25, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: John Eric Rollinger, Ross Dykstra Pursifull
  • Patent number: 8443658
    Abstract: The invention relates to a method and a device (50) for inspecting a running surface (35) of a cylinder liner (25) of a combustion engine (10) comprising an inspection tool (65), a control device (55) and connection means (60) for power supply and transmission of measuring data and control signals. The inspection tool (65) comprises a bearing rail (70) and mounted thereon a rotary table (80) and tools (90, 96) for measuring the inner diameter (d) and running surface (35) of the cylinder liner (25) and for visual inspection of the surface condition. The inspection tool (65) has a size that allows its introduction into the cylinder liner (25) through an aperture (30) in the cylinder liner (25) to be inspected. The invention is particular suitable for the inspection of a cylinder liner (25) of a reciprocating piston combustion engine (10).
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: May 21, 2013
    Assignee: Waertsilae Schweiz AG
    Inventors: Jan Willem Vroege, Gregory Sudwoj
  • Patent number: 8443779
    Abstract: A boosting converter and a boosting control unit are mounted on a vehicle. A failure diagnosis unit makes a failure diagnosis of an atmospheric pressure sensor based on a detection result of the atmospheric pressure sensor and on a detection result of an intake pressure sensor detecting engine intake pressure that changes in accordance with a change in the atmospheric pressure. Boosting control unit controls an output voltage of the boosting converter based on the detection result of atmospheric pressure sensor and the detection result of intake pressure sensor.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: May 21, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Noritake Mitsutani
  • Publication number: 20130081456
    Abstract: A cam target wheel for a vehicle may include a camshaft; and a lobe, formed on an outer circumferential surface of the camshaft, for recognizing a ridge and valley of a cam vibration waveform.
    Type: Application
    Filed: December 9, 2011
    Publication date: April 4, 2013
    Applicant: Hyundai Motor Company
    Inventors: Myung Rae Cho, Hong Wook Lee, Sang Hee Lee
  • Publication number: 20130075640
    Abstract: A method for determining information regarding a final position of an element of a gear, in particular a drive gear wheel, the information regarding the final position representing a stop position of a throttle valve at a mechanical stop, includes moving the element from a starting position in the direction of the final position, until the element comes to a standstill despite a specified supply of drive energy; determining information regarding the position of the element at standstill despite the supply of drive energy; and determining the information regarding the final position in that information of a correction distance is applied to the information regarding the position of the element, in particular subtracted, counter to the direction of the final position at standstill despite the supply of drive energy.
    Type: Application
    Filed: September 24, 2012
    Publication date: March 28, 2013
    Applicant: Robert Bosch GmbH
    Inventor: Robert Bosch GmbH
  • Patent number: 8397557
    Abstract: A method and apparatus for identifying a component failure within a thermal regenerator operates as follows. The burner control unit monitors at least one of a fuel pump characteristic for a fuel pump and an ignition system characteristic for an ignition system. The fuel pump is used to supply fuel to a fuel-fired burner and the ignition system is used to ignite fuel supplied to the fuel-fired burner. The fuel pump characteristic is communicated to the burner control unit which compares the fuel pump characteristic to a predetermined fuel pump criteria. The ignition system characteristic is communicated to the burner control unit which compares the ignition system characteristic to a predetermined ignition system criteria. The burner control unit identifies a fuel pump failure when the fuel pump characteristic does not meet the fuel pump criteria, and identifies an ignition system failure when the ignition system characteristic does not meet the ignition system criteria.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: March 19, 2013
    Assignee: Emcon Technologies LLC
    Inventors: Tony Parrish, Wilbur H. Crawley
  • Publication number: 20130042609
    Abstract: A unit for estimating a rotational speed of a turbocharger is provided. The unit includes a microprocessor comprising input ports configured for receiving measurement signals from an exhaust gas flow control system of an internal combustion engine and an output port for outputting a signal indicative of the rotational speed of the turbocharger. The input ports are adapted to receive a first set of measurement signals and a second set of measurement signals. A microprocessor is configured to calculate an estimated rotational speed of the turbocharger using a turbocharger model, based on the first set of measurement signals and the second set of measurement signals. The second set of measurement signals include signals indicative of a pressure difference across a turbine of the turbocharger.
    Type: Application
    Filed: August 17, 2012
    Publication date: February 21, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Francesco CIANFLONE, Gerhard LANDSMANN, Andreas SIDOROW, Christopher ECK, Rolf ISERMANN, Ulrich KONIGORSKI
  • Patent number: 8316699
    Abstract: The present invention provides a method and a device for accurately measuring and adjusting a valve clearance value to a desired value in an engine having a rocker-arm-type valve. According to a valve clearance measuring and adjusting method of the present invention, a pair of probes 60 each having a round tip end 611 are brought into direct contact with a valve clearance CV of an engine having a rocker-arm-type valve 105, and a center-to-center distance between the two tip ends 611 is measured. An actual valve clearance value is calculated and measured on the basis of the center-to-center distance between the tip ends 611. The actual valve clearance value is adjusted to a desired valve clearance value, while the actual valve clearance value is measured in real time.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: November 27, 2012
    Assignee: Hirata Corporation
    Inventors: Hisayuki Sueoka, Yasuyoshi Miyauchi, Yasuo Morise, Tatsumi Otomura, Hiroya Mitsushima
  • Patent number: 8307700
    Abstract: A sensor for sensing the position of a reciprocating free piston in a free piston Stirling machine. The sensor has a disk mounted to an end face of the power piston coaxially with its cylinder and reciprocating with the piston The disk includes a rim around its outer perimeter formed of an electrically conductive material A coil is wound coaxially with the cylinder, spaced outwardly from the outer perimeter of the disk and mounted in fixed position relative to the pressure vessel, preferably on the exterior of the pressure vessel wall.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: November 13, 2012
    Assignee: Sunpower, Inc.
    Inventors: Ezekiel S. Holliday, James Gary Wood