Patent application number | Description | Published |
20120259570 | ALTERNATOR SPEED ESTIMATION USING SPECTRUM ANALYSIS - A system and method for determining the speed of an alternator, for example, a vehicle alternator. The method includes measuring the current or voltage of a vehicle battery for a predetermined period of time, and then notch filtering the measured current or voltage signal to remove known harmonics. A limited data point Fast Fourier Transform (FFT) spectrum analysis operation is performed to identify the frequency peaks in the filtered signal, where the highest peak represents a ripple current on the DC alternator signal. The highest peak in the FFT signal is identified, and an interpolation process is performed between that peak and an adjacent peak in the data to identify the actual frequency of the ripple current. The ripple current is then converted to the speed of the alternator. | 10-11-2012 |
20120306422 | METHOD AND APPARATUS FOR THERMALLY MONITORING A PERMANENT MAGNET ELECTRIC MOTOR - A method for determining a temperature of an electric motor including stator windings includes injecting an AC current into a D-axis current of a stator winding at a frequency that is synchronized with a control frequency of the electric motor, determining a DC-phase current, determining a resistance of the stator winding corresponding to the DC-phase current and an applied voltage, and determining a temperature of the electric motor as a function of the resistance of the stator winding. | 12-06-2012 |
20120319722 | METHOD AND APPARATUS FOR ALTERNATOR STATOR TURN-TO-TURN SHORT DETECTION - A method for detecting whether the stator in a vehicle alternator has a turn-to-turn short circuit. The method includes determining an output current or voltage signal of the alternator, where the output current or voltage signal includes a ripple current frequency as a result of an AC-to-DC conversion. The method determines the speed of the alternator and a current output of the alternator. The method then determines the ripple current frequency of the alternator from the alternator speed, and determines a winding frequency from the ripple current frequency. The method performs an FFT analysis on the voltage and current signal, determines an amplitude of the winding frequency and compares the amplitude of the winding frequency to a predetermined amplitude, where if the difference exceeds a predetermined threshold, a turn-to-turn short circuit is likely occurring. | 12-20-2012 |
Patent application number | Description | Published |
20140207776 | METHOD AND SYSTEM FOR LINKING DATA SOURCES FOR PROCESSING COMPOSITE CONCEPTS - A computer-implemented method and system and computer-readable medium are disclosed for linking an ontology provided by a content service (i.e. category ontology) with a word expansion ontology (i.e. lexical ontology). A user may provide an input such as a voice command to an application. The voice command is processed by a natural language processing (NLP) engine to derive the user's intent and to extract relevant entities embodied in the command. The NLP engine may create a composite concept set containing multiple permutations of the concepts (entities extracted) and provide the composite concept set to a concept mapper. The concept mapper searches a mapping file and applies one or more scoring operations to determine a best match between the composite concept set and at least one category provided by the category ontology. The content service is searched using the category and the results are displayed to the user. | 07-24-2014 |
20140208295 | METHOD AND SYSTEM FOR CREATING AND MANAGING A DYNAMIC ROUTE TOPOGRAPHY FOR SERVICE ORIENTED SOFTWARE ENVIRONMENTS - A system, method, and computer-readable medium are provided for managing a route topography in a software environment. The system includes a dashboard user interface for allowing a user to manage the services that are part of a software application. The dashboard allows the user to add and delete services for a software application, to establish a communication identifier of each service, and to clone a first route topography to create a second route topography. A routing service manages the route topography by storing a route identifier and the associated services for the route. When a user modifies an existing route topography or creates a new route topography, the information is managed by the routing service which provides the route information to requesting services upon demand. In one embodiment, each service of the software application includes a route cache with routing information that may be updated periodically by the routing service. | 07-24-2014 |
20150220511 | METHOD AND SYSTEM FOR GENERATING NATURAL LANGUAGE TRAINING DATA - Provided is a system, method and computer-readable medium for generating data that may be used to train models for a natural language processing application. A system architect creates a plurality of sentence patterns that include entity variables and initiates sentence generation. Each entity is associated with one or more entity data sources. A language generator accepts the sentence patterns as inputs, and references the various entity sources to create a plurality of generated sentences. The generated sentences may be associated with a particular class and therefore used to train one or more statistical classification models and entity extraction models for associated models. The sentence generated process may be initiated and controlled using a user interface displayable on a computing device, the user interface in communication with the language generator module. | 08-06-2015 |