Electromechanical Or Magnetic System Patents (Class 702/115)
  • Patent number: 10216558
    Abstract: Predicting individual drive failures is achieved using machine learning models of drive behavior history based on samples of SMART data attributes collected over distinct time-periods. The drive behavior history is a historical feature added to drive features modeled based on a last sample of SMART data attributes. The drive behavior history feature is used in successive modeling of drive behavior history to increase accuracy in predicting an individual drive's failure over time. Consecutive individual drive failure predictions are aggregated to further increase accuracy in predicting an individual drive's failure. In one embodiment, the system models drive behavior history and other drive features using a machine learning model. Individual drives classified as predicted to fail within a certain period of time are incorporated into a drive replacement strategy that factors in a field-based replacement cost associated with the drive.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: February 26, 2019
    Assignee: EMC IP Holding Company LLC
    Inventors: Shiri Gaber, Oshry Ben-Harush, Amihai Savir
  • Patent number: 9959393
    Abstract: Testing tamper protection of a field device includes arrangement of at least one test element in the material of a housing of the field device. The test element is supplied with a first test signal, and the first test signal is measured for determining a physical fingerprint. The physical fingerprint is measured, and the test element is supplied with a second test signal. The second test signal is measured, and the second test signal is compared with the physical fingerprint. If the second test signal deviates from the physical fingerprint, a tamper signal is output.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: May 1, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventor: Rainer Falk
  • Patent number: 9860705
    Abstract: The invention is directed to systems, methods and computer program products for determining a location of a device on a massive MIMO (multiple-input multiple-output) network. An exemplary method comprises receiving, from a device, a first signal and a second signal at a base station; measuring a first signal characteristic for the first signal and a second signal characteristic for the second signal; comparing and matching the first measured signal characteristic to a first reference signal characteristic for a first reference signal and the second measured signal characteristic to a second reference signal characteristic for a second reference signal; and determining a location of the device based on the first measured signal characteristic and the second measured signal characteristic.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: January 2, 2018
    Assignees: Sony Corporation, Sony Mobile Communications Inc.
    Inventors: Magnus Persson, Erik Bengtsson
  • Patent number: 9752509
    Abstract: A method for controlling coupling between a first machine including a first rotating shaft having an associated first positional phase angle defined by a first shaft indicia and a second machine including a second rotating shaft having an associated second positional phase angle defined by a second shaft indicia. A rotational speed and rotational angle of the first shaft are monitored, and rotation of the second shaft is controlled by bringing the second shaft to a predetermined rotational speed relative to the first shaft speed. Acceleration of the second shaft is controlled such that the second shaft indicia is within a predetermined angle relative to the first shaft indicia upon the second shaft being brought to the predetermined rotational speed, at which point the first and second shafts are coupled such that the second shaft indicia is within the predetermined angle relative to the first shaft indicia.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: September 5, 2017
    Assignee: SIEMENS ENERGY, INC.
    Inventors: Peter Jon Clayton, Joseph David Hurley, Albert C. Sismour, Jr., Melissa A. Batis-Carver
  • Patent number: 9689908
    Abstract: A method is provided for determining the opening and/or closing time of the nozzle pin in an injection valve in an internal combustion engine having a plurality of cylinders. The nozzle pin is directly driven by a piezo actuator. The piezo voltage and/or the piezo charge at the respective piezo actuator functioning as a sensor is measured for the corresponding injection pulse in a plurality of cylinders of the internal combustion engine, and the median value of the measured voltage and/or charge values of the piezo actuators for the plurality of cylinders for the corresponding injection pulse is calculated. The obtained median value is then used as a replacement value for determining the opening and/or closing time in case of non-detectability or disruption of the needle opening and/or needle closing information.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: June 27, 2017
    Assignee: CONTINENTAL AUTOMOTIVE GMBH
    Inventors: Stefan Ascher, Hans-Joerg Wiehoff
  • Patent number: 9384928
    Abstract: An electrical switching apparatus includes a transductor circuit that senses a direct current between at least one input terminal and at least one output terminal and outputs an alternating current proportional to the direct current between the input terminal and the output terminal. The electrical switching apparatus also includes an alternating current electronic trip circuit configured to control pairs of separable contacts to separate based on the alternating current output from the transductor circuit.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: July 5, 2016
    Assignee: EATON COPORATION
    Inventors: Xin Zhou, James Leo Lagree, William E. Beatty
  • Patent number: 9354964
    Abstract: A service system can include numerous test scripts that are candidates for execution against a failure message to determine a solution for a failure in a distributed storage system. To efficiently ascertain a solution for a failure with the test scripts, a service system can analyze the failure message to determine tags and use the tags to guide selection of test scripts. The selected test scripts are then executed to analyze the failure message, and to generate, based on the analysis, a solution corresponding to the failure. Instead of executing the numerous test scripts against the failure message, only selected test scripts are executed against the failure message to generate a solution. The solution is then communicated to the distributed storage system.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: May 31, 2016
    Assignee: NetApp, Inc.
    Inventors: Anoop V. Channagiri, Ankush H. Prasad
  • Patent number: 8989907
    Abstract: A mobile apparatus and a process for adequately irrigating soil, wherein the apparatus has an irrigation unit for irrigating soil and a mobile microwave measurement unit for determining the water content of the soil along a measurement path. A control unit is used to irrigate the soil along the measurement path depending on the measured water content. The apparatus preferably also has a water tank and leaves an area of soil to be irrigated autonomously.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: March 24, 2015
    Assignee: Plantcare AG
    Inventors: Walter Schmidt, Yucel Toprak
  • Patent number: 8935116
    Abstract: A method is provided for testing a wind turbine installation in respect of riding through a voltage dip. As per the method, a voltage dip is simulated and measured data is obtained on the performance of the wind turbine installation based on the simulated voltage dip. The measured data obtained is analyzed regarding variables defined in performance requirements and their permitted values. The measured data is combined to form a measured dataset in a standardized measured data format. The measured dataset is forwarded to an automatic analysis unit which stores evaluation criteria. The analysis unit performs the tasks of deriving values for the variables defined in the performance requirements from the measured data, comparing the values of the variables with the permitted values contained in the performance requirements, performing an evaluation of the comparison according to the stored evaluation criteria and keeping the result of the evaluation ready for output.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: January 13, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Thomas Dreyer, Tobias Siepker
  • Patent number: 8909498
    Abstract: A method and system for testing and calibrating an accelerometer of an electronic device are provided. In accordance with one embodiment, there is a test system for an electronic device having an accelerometer with three mutually orthogonal sensing axes, the test system comprising: a test fixture having: a nest defining a cavity for receiving an electronic device; wherein the nest is configured so that, when the test fixture is substantially horizontal, a two-dimensional sensing plane defined by two of the sensing axes of the accelerometer is substantially horizontal and the third sensing axis is perpendicular to the two-dimensional sensing plane and substantially parallel to the force of gravity.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: December 9, 2014
    Assignee: BlackBerry Limited
    Inventors: Marc Adam Kennedy, Arkady Ivannikov, Aleksandar Papo
  • Patent number: 8862425
    Abstract: A sensing and control system terminates a cycle test when it senses the part being cycle tested is about to fail. The sensing and control system uses a sensor for generating a signal each time the test part completes a motion cycle. The sensing and control system uses a controller, responsive to the sensor, for determining whether a failure is about to occur and stopping the cycle test.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: October 14, 2014
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Christian A. Trager, Michael J. Niel
  • Patent number: 8831900
    Abstract: The invention relates to a system for controlling at least one actuator (6) for thrust reverser cowlings (2) on a turbojet engine, comprising a set of actuator and/or control components with at least one actuator (6) for cowlings (2) driven by at least one electric motor (7) and control means (9) for the electric motor (7). The control means (9) comprise test means (20), with an interface (22) destined for receiving test requests from a user. The test means (20) are designed on reception of a test request to carry out a test cycle on one or more components (7, 6, 15, 18) of the system comprising an isolated actuation to the component(s) (7, 6, 15, 18) with regard to the other components of the system.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: September 9, 2014
    Assignee: Aircelle
    Inventor: Hakim Maalioune
  • Patent number: 8823307
    Abstract: A system, method and computer program product for monitoring including detecting internal faults especially inter-turn faults of a synchronous generator and thus protecting the synchronous generator. The synchronous generator includes a winding for each phase of a power network, a terminal for each phase arranged on a terminal side of the synchronous generator, and connected to the respective winding, the terminals on the terminal side are connected to an electrical power network, and the synchronous generator is arranged to input power to the electrical power network by means of the terminals.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: September 2, 2014
    Assignee: ABB Research Ltd.
    Inventors: Zoran Gajic, Mustafa Ibrahim, Antonis Marinopoulos, Pedro Rodriguez, Jianping Wang, Liwei Wang
  • Patent number: 8798948
    Abstract: A non-transitory computer-readable recording medium stores a magnetic program causing a computer to perform an exchange coupling energy calculating process including interpolating a rotation angle between two magnetization vectors disposed at the respective centers of two adjacent elements used in a finite volume method with reference to a rotation axis perpendicular to the two magnetization vectors, and calculating a magnetic exchange coupling field by integrating a magnetic field acting as a force exerted on the two magnetization vectors with the interpolated rotation angle.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: August 5, 2014
    Assignee: Fujitsu Limited
    Inventor: Koichi Shimizu
  • Patent number: 8768641
    Abstract: A digital control system for performing a durability test with a steering test rig is disclosed. The digital control system comprises a learning control device for controlling periodic reference signals in servo actuator systems, such as hydraulic cylinders and electrical motors. This learning device is referred to as POISON (periodic on-line iterative signal optimum navigation) controller. By iterative learning of a corrected reference signal, the POISON controller is able to compensate for control errors which occur in conventional closed loop control systems. In contrast to existing control systems, the POISON controller is capable of permanent online operation. Therefore it is able to compensate for certain changes in the controlled system. The POISON controller can easily be added to existing servo control loops.
    Type: Grant
    Filed: May 6, 2009
    Date of Patent: July 1, 2014
    Assignee: GM Global Technology Operations LLC
    Inventor: Michael Lindenstruth
  • Patent number: 8691261
    Abstract: It is intended to provide a drug delivery system which makes it possible to solve the existing technical problems and is easily usable in practice. A drug, which comprises an organic compound or an inorganic compound and has been magnetized by modifying a side chain and/or crosslinking side chains, is induced by a magnetic force into target tissues or an affected part.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: April 8, 2014
    Assignees: IHI Corporation
    Inventors: Haruki Eguchi, Yoshihiro Ishikawa
  • Patent number: 8682609
    Abstract: The present invention relates to a method for regulating an active vibration isolation system and to an active vibration isolation system, in particular for a vibration isolated positioning of lithography-devices, wafer-handling-systems and/or microscopes, as for instance scanning microscopes. The active vibration isolation system comprises the following components: a support body for bearing a load which is to be isolated; pneumatic vibration isolators with controllable valves for carrying the support body with respect to the ground; position sensors for providing vertical position signals of the support body; a first regulating system for vibration compensation in at least one degree of freedom in translation (Xt,Yt,Zt) and in at least one degree of freedom in rotation (Xr,Yr,Zr) and a second pneumatic regulating system for vibration compensation in at least one degree of freedom selected from three degrees of freedom (Zt,Xr,Yr) which are effective in vertical direction.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: March 25, 2014
    Assignee: Integrated Dynamics Engineering GmbH
    Inventor: Peter Heiland
  • Publication number: 20140063112
    Abstract: There is provided a control device configured to control a drive system including a motor and a driven object. The control device includes a controller configured to compute an operation amount, to measure a control amount of the controlled object, to input a measurement signal of the control amount to an inverse model of a model indicating input-output characteristics of the controlled object, and to generate a differential signal between an output of the inverse model and the operation amount; and a filter configured to filter the generated differential signal, and which has frequency characteristics of attenuating a vibrational component which is developed due to mechanical characteristics of the controlled object, from the differential signal. The controller is configured to make a judgment of whether or not a defect has occurred in the controlled object, based on an output of the filter.
    Type: Application
    Filed: August 28, 2013
    Publication date: March 6, 2014
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Tomoaki HAZEYAMA, Kenichi IESAKI
  • Patent number: 8652412
    Abstract: Methods and systems for programmed dispensation of consumable compositions are provided. A method for sterilizing a beverage container may include, but is not limited to: (a) detecting a sterilization status of a container; and (b) controlling functionality of a controllable device according to the sterilization status. A system for sterilizing a beverage container may include, but is not limited to: (a) means for detecting a sterilization status of a container; and (b) means for controlling functionality of a controllable device according to the sterilization status.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: February 18, 2014
    Assignee: The Invention Science Fund I, LLC
    Inventors: Roderick A. Hyde, Eric C. Leuthardt, Robert W. Lord, Clarence T. Tegreene, Lowell L. Wood, Jr.
  • Patent number: 8626470
    Abstract: The present invention relates to a reversible permeability measuring device for measuring magnetic characteristics and magnetic flux change in a specimen, as one of a plurality of non-destructive methods for evaluating mechanical properties. The reversible permeability measuring device of the present invention directly measures a magnetic field change induced at the surface of the specimen through the use of a magnetic potentiometer and a flux meter, thereby accurately evaluating the deterioration of materials.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: January 7, 2014
    Assignees: Korea Research Institute of Standards and Science, Chung-Ang University Industry Academy Cooperation Foundation
    Inventors: Kwon Sang Ryu, Soo Young Park, Jong Seo Park, In Hyun Cheong, Kee-Bong Yoon
  • Patent number: 8587328
    Abstract: An apparatus and method for determining characterizing attributes of an actuator is provided. An actuator may be moved to a maximum capacitance position. At the maximum capacitance position, an initial measurement of the actuator capacitance is made. The actuator is moved a predetermined increment toward a first extreme position, and the actuator capacitance is again measured. If the capacitance changed by a threshold amount, the signal preceding the signal that caused the actuator to move is recorded as an approximate response curve end point, or the first extreme position. The actuator is again moved a predetermined increment toward a second extreme position. After each move, the capacitance is measured. If it is determined the capacitance did change by a threshold amount from the previously measured capacitance, the signal related to the previously measured capacitance is recorded as an approximate response curve end point, or the second extreme position.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: November 19, 2013
    Assignee: Analog Devices, Inc.
    Inventors: Eduardo Martinez, Christian Jimenez, Jose Ibanez-Climent, Colm Donovan
  • Patent number: 8532947
    Abstract: An integrated circuit includes non-volatile storage configured to secretly store a digital word, the value of which forms an identification code. The integrated circuit also includes control circuitry configured to receive the digital word and to generate transient electrical currents or transient voltages, the characteristics of which depend on the value of the digital word. There is an electrically conductive network configured to be passed through by the electrical currents or receive the transient voltages so as to generate an electromagnetic field that identifies the integrated circuit.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: September 10, 2013
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Pascal Fornara, Mathieu Lisart
  • Patent number: 8532956
    Abstract: Disclosed is a method for tracking rotation of a turbomachine component including locating at least one tilt sensor at the turbomachine component and rotating the turbomachine component about a central axis to observe a portion of interest on the turbomachine component. The at least one tilt sensor detects an angle of rotation of the turbomachine component and transmits the angle of rotation from the at least one tilt sensor to a device which converts the angle of rotation to an indicia of the portion of interest. Further disclosed is a rotor including at least one tilt sensor and a system for tracking rotation of a turbomachine component including at least one tilt sensor and a device.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: September 10, 2013
    Assignee: General Electric Company
    Inventors: Anandraj Sengupta, Paul Stephen DiMascio, Thomas Bradley Beddard
  • Publication number: 20130226497
    Abstract: A method for evaluating a gauge controller is disclosed. The method includes counting a number of high pulses for a plurality of signal types until either each of the control signals present low signals. After the number of high signals are counted, an angular offset of a gauged needle is calculated.
    Type: Application
    Filed: February 27, 2012
    Publication date: August 29, 2013
    Applicant: YAZAKI NORTH AMERICA, INC.
    Inventor: Kevin D. Russo
  • Publication number: 20130218781
    Abstract: An alternator and starter tester system capable of generating a warranty claim code. The warranty claim code can contain information regarding a diagnostic test and the tested components. The alternator and starter tester system can also encode and transmit the warranty claim code to a supplier or a manufacturer to verify warranty credit.
    Type: Application
    Filed: February 22, 2012
    Publication date: August 22, 2013
    Applicant: Service Solutions U.S. LLC
    Inventors: Michael Simon, Garret Miller
  • Patent number: 8465859
    Abstract: A current sensor includes a magnetic balance sensor and a switching circuit. The magnetic balance sensor includes a feedback coil which is disposed near a magnetic sensor element varying in characteristics due to application of an induction field caused by measurement current and which produces a canceling magnetic field canceling the induction field. The switching circuit switches between magnetic proportional detection and magnetic balance detection. The magnetic proportional detection is configured to output a voltage difference as a sensor output. The magnetic balance detection is configured to output, as a sensor output, a value corresponding to current flowing through the feedback coil when a balanced state in which the induction field and the canceling magnetic field cancel each other out is reached after the feedback coil is energized by the voltage difference.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: June 18, 2013
    Assignee: Alps Green Devices Co., Ltd.
    Inventors: Masatoshi Murata, Manabu Tamura, Shinji Mitsuya, Hiroyuki Hebiguchi
  • Patent number: 8463566
    Abstract: A method of estimating force output of a solenoid assembly including a solenoid coil and a corresponding armature upon which the solenoid coil exerts a magnetic solenoid force is provided. The method includes a step of measuring a plurality of data points of current being drawn by the solenoid coil resulting in a plurality of measured current values, a step of measuring a plurality of data points of voltage being supplied to the solenoid coil resulting in a plurality of measured voltage values, and a step of estimating the magnetic solenoid force exerted upon the corresponding armature based on the pluralities of measured voltage and current values, resulting in an estimated force value.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: June 11, 2013
    Assignee: Borgwarner, Inc.
    Inventors: Christopher V. Kurmaniak, Thaddeus R. Kopp
  • Patent number: 8416053
    Abstract: An engine control system comprises a signal deviation module, a variation determination module, and a sensor diagnostic module. The signal deviation module receives a signal from a sensor monitoring an operating condition of an engine and determines a plurality of signal deviations. Each of the plurality of signal deviations is based on a magnitude of a difference between the signal at a first time and the signal at a second time. The second time is different than the first time. The variation determination module generates a variation value based on the plurality of signal deviations during a period. The sensor diagnostic module determines a state of the sensor based on the variation value.
    Type: Grant
    Filed: May 6, 2009
    Date of Patent: April 9, 2013
    Inventors: Kurt D. McLain, Layne K. Wiggins, Wenbo Wang
  • Patent number: 8405339
    Abstract: A system and method for detecting a rotor fault condition in an AC induction machine is disclosed. The system includes a processor programmed to receive voltage and current data from an AC induction machine, generate a current frequency spectrum from the current data, and identify rotor-fault related harmonics in the current frequency spectrum. The processor is also programmed to calculate a fault severity indicator using the voltage and current data, identified rotor-fault related harmonics, and motor specifications, analyze the fault severity indicator to determine a possibility of rotor fault. The processor generates an alert based on the possibility of rotor fault.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: March 26, 2013
    Assignee: Eaton Corporation
    Inventors: Pinjia Zhang, Bin Lu, Thomas G. Habetler
  • Patent number: 8390234
    Abstract: A method for automated startup and/or for automated operation of controllers of an electrical drive system with vibrational mechanics with the following steps: (a) determining a preliminary value of at least one parameter; (b) determining a model of the electrical drive system by determination of initially a non-parameterized model through the recording of frequency data during operation of the drive system subject to the utilization of the preliminary value of at least one parameter and the subsequent determination of parameters of the electrical drive system based on the frequency data and subject to optimization of at least one preliminary value of at least one parameter by a numerical optimization method on the basis of the Levenberg-Marquardt algorithm and (c) parameterizing at least one controller of the electrical drive system by at least one of the determined parameters.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: March 5, 2013
    Assignee: Baumuller Nurnberg GmbH
    Inventor: Sebastian Villwock
  • Patent number: 8340935
    Abstract: A network analyzer contains a processing device, at least one signal generator and at least four measuring points. The processing device controls the signal generator and processes measured values picked up from the measuring points. The network analyzer implements several calibration measurements on calibration standards, before it implements measurements on a device under test. The network analyzer implements the calibration measurements using the measuring points. The processing device determines error matrices on the basis of the results of the calibration measurements. The network analyzer implements measurements on the device using simultaneously, exactly three measuring points. The processing device determines measured values in each case of a fourth measuring point on the basis of the calibration measurements and the measured values of the three measuring points.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: December 25, 2012
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Martin Leibfritz, Werner Held
  • Patent number: 8335661
    Abstract: Various methods and systems for scoring applications are disclosed. One method involves generating a baseline measuring a parameter of a computer system. The parameter is related, directly or indirectly, to the energy consumption of the computer system. The method next involves installing and running an application on the computer system. The previously measured parameter is measured with the application running. Next, a score is calculated for the application based on the two measurements. This score indicates how green the application is.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: December 18, 2012
    Assignee: Symantec Operating Corporation
    Inventor: Sourabh Satish
  • Patent number: 8310196
    Abstract: A method and an apparatus for the failsafe monitoring of an electromotive drive without additional sensors, including a drive having a three-phase control of an electric motor, detection of the current and voltage profiles of each of the three phases, as they are forwarded to the motor by drive electronics, determination of the load speed while using the detected current and voltage values, where the determination of the load speed takes place by calculating an observer model with reference to the detected current, to the detected voltage, to the frequency preset by the control and to the characteristic data of the motor and generation of a failsafe switch signal for the motor when the calculated load speed does not correspond to a preset desired speed within the framework of preset tolerances. The load torque can also be determined and monitored with reference to the observer model.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: November 13, 2012
    Assignee: Sick AG
    Inventor: Mathias Ams
  • Patent number: 8294410
    Abstract: A method and an apparatus for the failsafe monitoring of an electromotive drive without additional sensors, including a drive having a three-phase control of an electric motor, detection of the current and voltage profiles of each of the three phases, as they are forwarded to the motor by drive electronics, determination of the load speed while using the detected current and voltage values, where the determination of the load speed takes place by calculating an observer model with reference to the detected current, to the detected voltage, to the frequency preset by the control and to the characteristic data of the motor and generation of a failsafe switch signal for the motor when the calculated load speed does not correspond to a preset desired speed within the framework of preset tolerances. The load torque can also be determined and monitored with reference to the observer model.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: October 23, 2012
    Assignee: Sick AG
    Inventor: Mathias Ams
  • Patent number: 8280670
    Abstract: A circuit breaker includes an actuator, a switching device connected to the actuator, and a test unit configured to test a connection between the actuator and the switching device by detecting a first connection voltage at the connection between the actuator and the switching device. The test unit is further configured to test the operation of the switching device by turning the switching device on without operating the actuator.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: October 2, 2012
    Assignee: General Electric Company
    Inventor: Craig B. Williams
  • Publication number: 20120221281
    Abstract: A method is provided for testing a wind turbine installation in respect of riding through a voltage dip. As per the method, a voltage dip is simulated and measured data is obtained on the performance of the wind turbine installation based on the simulated voltage dip. The measured data obtained is analyzed regarding variables defined in performance requirements and their permitted values. The measured data is combined to form a measured dataset in a standardized measured data format. The measured dataset is forwarded to an automatic analysis unit which stores evaluation criteria. The analysis unit performs the tasks of deriving values for the variables defined in the performance requirements from the measured data, comparing the values of the variables with the permitted values contained in the performance requirements, performing an evaluation of the comparison according to the stored evaluation criteria and keeping the result of the evaluation ready for output.
    Type: Application
    Filed: February 21, 2012
    Publication date: August 30, 2012
    Inventors: Thomas Dreyer, Tobias Siepker
  • Patent number: 8253365
    Abstract: A method for fault diagnosis for a rotor of an electric motor, the electric motor also having a stator, includes the steps of generating, via a processor, a measured motor current for the stator, determining, via the processor, a resolver angle of the rotor, determining, via the processor, a flux angle of the rotor, calculating, via the processor, a transformation angle using the resolver angle and the flux angle, conducting, via the processor, a transformation of the motor current using the transformation angle, and identifying, via the processor, a fault condition based on the transformation.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: August 28, 2012
    Assignee: GM Global Technology Operations LLC
    Inventor: Chia-Chou Yeh
  • Publication number: 20120210725
    Abstract: A method for ground control of proper operation of an aeronautical turbine engine for a plane. A test includes carrying out, on the operating turbine engine and from a predetermined speed, a quick reduction in fuel flow according to a programmed decrease to evaluate flame-out resistance of the combustion chamber of the turbine engine during a quick inflight deceleration maneuver of the speed thereof.
    Type: Application
    Filed: October 18, 2010
    Publication date: August 23, 2012
    Applicant: TURBOMECA
    Inventors: Philippe Roger Courtie, Philippe Etchepare, Hubert Pascal Verdier
  • Patent number: 8140291
    Abstract: A system and method are provided for correction of parameters used in determination of stator turn faults of an induction motor. An embodiment may include determining a residual impedance and/or a residual voltage of the motor, and correcting a normalized cross-coupled impedance based on the residual impedance and residual voltage. Additional embodiments may include measuring an operating temperature of the motor and determining a negative sequence impedance of the motor based on the temperature. Another embodiment may include measuring voltages and currents of the motor and determining phasors for the voltages and currents using compensation for variations from a nominal frequency of the motor.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: March 20, 2012
    Assignee: General Electric Company
    Inventors: Bogdan Z. Kasztenny, Somakumar Ramachandrapanicker, Arvind Kumar Tiwari, Arijit Banerjee
  • Patent number: 8126673
    Abstract: The invention offers a calculation method and program capable of performing line-by-line calculations using a Voigt function at speeds of 50-100 times what is conventional. The Voigt function is divided into a first range around the peak and a skirt portion not contained in the first range. The first range is replaced by a cubic function, and the skirt portion is taken as the Voigt function to perform calculations in predetermined ranges of equal intervals. Furthermore, the peak area of the first range is replaced by a cubic function, and the skirt portion is taken as a function representing the difference between the Voigt function and the cubic function to perform calculations in second predetermined intervals smaller than the aforementioned first predetermined intervals. This is repeated until the desired level of precision is reached. Additionally, interpolation is performed by dividing these predetermined intervals into four or five parts.
    Type: Grant
    Filed: August 26, 2004
    Date of Patent: February 28, 2012
    Assignee: Fujitsu FIP Corporation
    Inventor: Nobuyuki Uemura
  • Publication number: 20120038311
    Abstract: A method for the identification without shaft encoder of magnetomechanical characteristic quantities of a three-phase asynchronous comprising: constant voltage impression U1? in ? axial direction in order to generate a constant magnetic flux; test signal voltage supply U1? in ? axial direction of the asynchronous motor, whereby the ? axial direction remains supplied with constant current; measuring signal current measurement I1? in ? stator axial direction of the asynchronous motor; identification of mechanical characteristic quantities of the asynchronous motor based on the test signal voltage U1? and on the measuring signal current I1?, whereby the rotor can execute deflection movements. Method can also be used for control of electrical drives. An identification apparatus for the determination of mechanical characteristic quantities of an asynchronous motor and for motor control, whereby the identified characteristic quantities can be used to determine, optimize and monitor a motor control.
    Type: Application
    Filed: August 9, 2011
    Publication date: February 16, 2012
    Applicant: BAUMULLER NURNBERG GMBH
    Inventors: Sebastian Villwock, Heiko Zatocil
  • Patent number: 8089237
    Abstract: A method for controlling an opening leaf of a vehicle. The method detects whether a predetermined event is occurring in the absence of a predetermined situation likenable to a trapping incident and, if appropriate, lowers a function of detecting the situation likenable to a trapping incident.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: January 3, 2012
    Assignee: Renault S.A.S.
    Inventors: Eric Bernhard, Hoang-Giang Nguyen, Laurent Piloy
  • Patent number: 8078421
    Abstract: A multi-cell disk drive test system that provides a power recovery mode is disclosed. The multi-cell disk drive test system includes a test platform having a plurality of cells configured to receive and to provide communication with disk drives loaded therein, respectively, and test logic. The test logic is coupled to a cell and is configured to operate a test application to: execute a series of test modules to test a disk drive loaded in the cell; switch from a normal mode to a power recovery mode responsive to a power recovery flag relating to a power failure; and in the power recovery mode, read a test sequence index identifying a last completed test module before the power failure and execute a subsequent series of test modules following the last completed test module for the disk drive.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: December 13, 2011
    Assignee: Western Digital Technologies, Inc.
    Inventors: Amarnath Shastry, Clinton A. Bell
  • Patent number: 8063626
    Abstract: The present invention refers to a method for the precise measurement of dependency on amplitude and phase of a plurality of high frequency signals, preferably in the synchrotron accelerator of elementary particles. The essence of the solution according to the invention lies in that with a single measuring device and without any aliasing it is achieved a resolution of 0.2 micron and repeatability of measurements of 1 micron down to the lower frequency limit of a few MHz.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: November 22, 2011
    Assignee: Instrumentation Technologies d.d.
    Inventors: Borut Solar, Primoz Lemut, Vladimir Poucki, Borut Baricevic, Tomaz Karcnik
  • Publication number: 20110276301
    Abstract: A system for computing machine parameters of an induction machine includes a relation providing module and a circuit parameter computing module. The relation providing module is operable to provide a relationship between slip rates and primary side resistances of the induction machine and a relationship between the slip rates and primary side reactances of the induction machine. The circuit parameter computing module is operable to perform a parameter computing process according to the relationships obtained from the relation providing module. The parameter computing process includes the steps of: a) generating a set of initial values of equivalent circuit parameters of the induction machine; b) updating the initial values; c) calculating a cumulative resistance error and a cumulative reactance error; and d) repeating steps b) and c) until the cumulative resistance error and the cumulative reactance error are smaller than first and second error thresholds, respectively.
    Type: Application
    Filed: May 6, 2010
    Publication date: November 10, 2011
    Applicant: I SHOU UNIVERSITY
    Inventors: Rong-Ching Wu, Chen-Sen Ouyang, Ching-Tai Chiang
  • Patent number: 8055474
    Abstract: The present invention relates to systems and methods for diagnosing undesirable events or the lack of desirable events representing product or process malfunctions. One aspect of the invention includes a method for determining a cause of a malfunction event in a prototype or production product or process. Another aspect of the invention includes a method for identifying evidence of deviation from a specification for a product or process. Still another aspect of the invention includes a method for ascertaining the reliability of a product or process. The present invention also provides a diagnostic computer system and computer program code for performing various methods embodying different aspects of the present invention. A computer system for training a user to diagnose and apply corrective action to a malfunctioning product or process is also provided.
    Type: Grant
    Filed: January 4, 2008
    Date of Patent: November 8, 2011
    Assignee: Red X Holdings LLC
    Inventor: Adrian R. Hooper
  • Patent number: 8055475
    Abstract: The present invention relates to systems and methods for diagnosing undesirable events or the lack of desirable events representing product or process malfunctions. One aspect of the invention includes a method for determining a cause of a malfunction event in a prototype or production product or process. Another aspect of the invention includes a method for identifying evidence of deviation from a specification for a product or process. Still another aspect of the invention includes a method for ascertaining the reliability of a product or process. The present invention also provides a diagnostic computer system and computer program code for performing various methods embodying different aspects of the present invention. A computer system for training a user to diagnose and apply corrective action to a malfunctioning product or process is also provided.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: November 8, 2011
    Assignee: Red X Holdings LLC
    Inventor: Adrian R. Hooper
  • Patent number: 7996174
    Abstract: A disk drive testing system includes at least one robotic arm defining a first axis substantially normal to a floor surface. The robotic arm is operable to rotate through a predetermined arc about and extend radially from the first axis. Multiple racks are arranged around the robotic arm for servicing by the robotic arm. Each rack houses multiple test slots that are each configured to receive a disk drive transporter configured to carry a disk drive for testing.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: August 9, 2011
    Assignee: Teradyne, Inc.
    Inventors: Edward Garcia, Brian S. Merrow, Evgeny Polyakov, Walter Vahey, Eric L. Truebenbach
  • Patent number: 7974809
    Abstract: Systems and methods for monitoring, managing, and testing power systems are disclosed. In various embodiments, a site server collects data from one or more generators, automatic transfer switches, sensors, and cameras at a site. The site server stores captured data and triggers alarm events when preselected limits are exceeded. The site server also enables users to configure, initiate, pause, resume, monitor, and abort scripted tests of the monitored entities. In some of these and other embodiments, an enterprise-wide server collects data from multiple site servers, makes the data available via a web-based or other client interface, and provides consolidated monitoring, alarm, test management, and management resources.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: July 5, 2011
    Assignee: Blue Pillar, Inc.
    Inventors: Bradley Jay Witter, Thomas Joseph Butler
  • Patent number: 7945415
    Abstract: A fault detection method for detecting short circuit faults in an injector arrangement at engine start-up. The injector arrangement comprises one or more piezoelectric fuel injectors, which are connected in a drive circuit. In one aspect of the invention, the potential at a bias point in the drive circuit is determined and compared with a predicted voltage. A short circuit fault signal is generated if the potential at the bias point is not within a predetermined tolerance voltage of the predicted voltage. In another aspect of the invention, a first charge pulse is applied to the injectors to charge the injectors. A discharge current path is provided during a delay period following the first charge pulse by closing a discharge switch. A faulty injector will discharge through the discharge current path during the delay period. A second charge pulse is applied to the injectors following the delay period.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: May 17, 2011
    Assignee: Delphi Technologies Holding S.arl
    Inventor: Louisa J. Perryman