Patents by Inventor Steven O'Hara

Steven O'Hara has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20060231368
    Abstract: A torque transfer mechanism for controlling the magnitude of a clutch engagement force exerted on a clutch pack that is operably disposed between a first rotary member and a second rotary member includes a hydraulic clutch actuation system. The hydraulic clutch actuation system includes a primary fluid circuit coupled to a secondary fluid circuit by a pressure intensifier. The pressure intensifier provides magnified pressure to a piston for actuating the clutch pack.
    Type: Application
    Filed: June 9, 2006
    Publication date: October 19, 2006
    Applicant: Magna Powertrain USA, Inc.
    Inventors: James Brissenden, Timothy Burns, Sankar Mohan, Eric Bansbach, Steven O'Hara
  • Publication number: 20060076208
    Abstract: A torque transfer mechanism for controlling the magnitude of a clutch engagement force exerted on a clutch pack that is operably disposed between a first rotary member and a second rotary member includes a hydraulic clutch actuation system. The hydraulic clutch actuation system includes a primary fluid circuit coupled to a secondary fluid circuit by a pressure intensifier. The pressure intensifier provides magnified pressure to a piston for actuating the clutch pack.
    Type: Application
    Filed: November 28, 2005
    Publication date: April 13, 2006
    Inventors: James Brissenden, Timothy Burns, Sankar Mohan, Eric Bansbach, Steven O'Hara
  • Publication number: 20050121283
    Abstract: A torque transfer mechanism for controlling the magnitude of a clutch engagement force exerted on a clutch pack that is operably disposed between a first rotary member and a second rotary member includes a hydraulic clutch actuation system. The hydraulic clutch actuation system includes a primary fluid circuit coupled to a secondary fluid circuit by a pressure intensifier. The pressure intensifier provides magnified pressure to a piston for actuating the clutch pack.
    Type: Application
    Filed: December 8, 2003
    Publication date: June 9, 2005
    Inventors: James Brissenden, Timothy Burns, Sankar Mohan, Eric Bansbach, Steven O'Hara
  • Patent number: 6879971
    Abstract: A method for determining an output value having a known relationship to an input value with a predicted value includes the step of first training a predictive model with at least one output for a given set of inputs that exist in a finite dataset. Data is then input to the predictive model that is within the set of given inputs. Thereafter, a prediction is made of an output from the predictive model that corresponds to the given input such that a predicted output value will be obtained which will have associated therewith the errors of the predictive model.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: April 12, 2005
    Assignee: Pavilion Technologies, Inc.
    Inventors: James D. Keeler, Eric J. Hartman, Devendra B. Godbole, Steve Piche, Laura Arbila, Joshua Ellinger, R. Bruce Ferguson, II, John Krauskop, Jill L. Kempf, Steven A. O'Hara, Audrey Strauss, Jitendra W. Telang
  • Publication number: 20050023102
    Abstract: A torque transfer mechanism for controlling the magnitude of a clutch engagement force exerted on a clutch pack that is operably disposed between a first rotary member and a second rotary member includes a hydraulic clutch actuation system. The hydraulic clutch actuation system includes an electric motor drivingly coupled to a pump. The pump supplies pressurized fluid to an accumulator. The pressurized fluid within the accumulator is selectively supplied to a piston to provide a clutch engagement force.
    Type: Application
    Filed: June 18, 2004
    Publication date: February 3, 2005
    Inventors: James Brissenden, Sankar Mohan, Eric Bansbach, Timothy Burns, Steven O'Hara
  • Patent number: 6243696
    Abstract: A method for building a model of a system includes first extracting data from a historical database (310). Once the data is extracted, a dataset is then created, which dataset involves the steps of preprocessing the data. This dataset is then utilized to build a model. The model is defined as a plurality of transforms which can be utilized to run an on-line model. This on-line model is interfaced with the historical database such that the variable names associated therewith can be downloaded to the historical database. This historical database can then be interfaced with a control system to either directly operate the plant or to provide an operator an interface to various predicted data about the plant. The building operation will create the transform list and then a configuration step is performed in order to configure the model to interface with the historical database. When the dataset was extracted, it is unknown whether the variables names are still valid.
    Type: Grant
    Filed: March 24, 1998
    Date of Patent: June 5, 2001
    Assignee: Pavilion Technologies, Inc.
    Inventors: James D. Keeler, Eric J. Hartman, Devendra B. Godbole, Steve Piche, Laura Arbila, Joshua Ellinger, R. Bruce Ferguson, II, John Krauskop, Jill L. Kempf, Steven A. O'Hara, Audrey Strauss, Jitendra W. Telang
  • Patent number: 6144952
    Abstract: A predictive network is disclosed for operating in a runtime mode and in a training mode. The network includes a preprocessor (34') for preprocessing input data in accordance with parameters stored in a storage device (14') for output as preprocessed data to a delay device (36'). The delay device (36') provides a predetermined amount of delay as defined by predetermined delay settings in a storage device (18). The delayed data is input to a system model (26') which is operable in a training mode or a runtime mode. In the training mode, training data is stored in a data file (10) and retrieved therefrom for preprocessing and delay and then input to the system model (26'). Model parameters are learned and then stored in the storage device (22). During the training mode, the preprocess parameters are defined and stored in a storage device (14) in a particular sequence and delay settings are determined in the storage device (18).
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: November 7, 2000
    Inventors: James D. Keeler, Eric J. Hartman, Steven A. O'Hara, Jill L. Kempf, Devendra B. Godbole
  • Patent number: 6002839
    Abstract: A predictive network is disclosed for operating in a runtime mode and in a training mode. The network includes a preprocessor (34') for preprocessing input data in accordance with parameters stored in a storage device (14') for output as preprocessed data to a delay device (36'). The delay device (36') provides a predetermined amount of delay as defined by predetermined delay settings in a storage device (18). The delayed data is input to a system model (26') which is operable in a training mode or a runtime mode. In the training mode, training data is stored in a data file (10) and retrieved therefrom for preprocessing and delay and then input to the system model (26'). Model parameters are learned and then stored in the storage device (22). During the training mode, the preprocess parameters are defined and stored in a storage device (14) in a particular sequence and delay settings are determined in the storage device (18).
    Type: Grant
    Filed: August 21, 1997
    Date of Patent: December 14, 1999
    Assignee: Pavilion Technologies
    Inventors: James D. Keeler, Eric J. Hartman, Steven A. O'Hara, Jill L. Kempf, Devendra B. Godbole
  • Patent number: 5729661
    Abstract: A preprocessing system for preprocessing input data to a neural network includes a training system for training a model (20) on data from a data file (10). The data is first preprocessed in a preprocessor (12) to fill in bad or missing data and merge all the time values on a common time scale. The preprocess operation utilizes preprocessing algorithms and time merging algorithms which are stored in a storage area (14). The output of the preprocessor (12) is then delayed in a delay block (16) in accordance with delay settings in storage area (18). These delayed outputs are then utilized to train the model (20), the model parameter is then stored in a storage area (22) during run time, a distributed control system (24) outputs the data to a preprocess block (34) and then preprocesses data in accordance with the algorithms in storage area (14). These outputs are then delayed in accordance with a delay block (36) with the delay settings (18).
    Type: Grant
    Filed: January 25, 1993
    Date of Patent: March 17, 1998
    Assignee: Pavilion Technologies, Inc.
    Inventors: James D. Keeler, Eric J. Hartman, Steven A. O'Hara, Jill L. Kempf, Devendra B. Godbole
  • Patent number: 5479573
    Abstract: A predictive network is disclosed for operating in a runtime mode and in a training mode. The network includes a preprocessor (34') for preprocessing input data in accordance with parameters stored in a storage device (14') for output as preprocessed data to a delay device (36'). The delay device (36') provides a predetermined amount of delay as defined by predetermined delay settings in a storage device (18). The delayed data is input to a system model (26') which is operable in a training mode or a runtime mode. In the training mode, training data is stored in a data file (10) and retrieved therefrom for preprocessing and delay and then input to the system model (26'). Model parameters are learned and then stored in the storage device (22). During the training mode, the preprocess parameters are defined and stored in a storage device (14) in a particular sequence and delay settings are determined in the storage device (18).
    Type: Grant
    Filed: January 25, 1993
    Date of Patent: December 26, 1995
    Assignee: Pavilion Technologies, Inc.
    Inventors: James D. Keeler, Eric J. Hartman, Steven A. O'Hara, Jill L. Kempf, Devandra B. Godbole