Patents by Inventor Steven A. Avritch

Steven A. Avritch 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: 20200064824
    Abstract: According to an aspect, a sever system includes a non-volatile storage device with a plurality of loadable configuration data and a configurable sever logic circuit configured responsive to a transfer of the loadable configuration data to perform a plurality of operations. The operations include mapping a plurality of module-level sever logic inputs to a plurality of module-specific sever logic functions as defined in the loadable configuration data. The module-level sever logic inputs are monitored by the configurable sever logic circuit based on the module-specific sever logic functions for a sever condition. A sever command to disconnect one or more outputs of a plurality of modules is triggered based on the module-specific sever logic functions and the module-level sever logic inputs.
    Type: Application
    Filed: August 23, 2018
    Publication date: February 27, 2020
    Inventors: Steven A. Avritch, Christopher Brian Noll
  • Publication number: 20200065284
    Abstract: A system includes a computing system and a cable connector. The computing system includes a plurality of processors and an interconnect circuit configured to connect the plurality of processors to each other. The cable connector is configured to connect to the interconnect circuit and provide a channel identifier to the computing system, and the interconnect circuit is configured to set one of the plurality of processors as a system controller based on the channel identifier.
    Type: Application
    Filed: August 24, 2018
    Publication date: February 27, 2020
    Inventors: Christopher Brian Noll, Steven A. Avritch
  • Publication number: 20200019446
    Abstract: Embodiments in include a system, a method, and a computer program product for performing intelligent load shedding for multi-channel processing system. The embodiments include a multi-channel processing system, wherein each channel of the multi-channel processing system includes a plurality of processors, and a plurality of links coupling each channel with each other channel in the multi-channel processing system, wherein the links are used to transmit status information of the plurality of processors. The embodiments also include a plurality of cooling elements coupled to each channel having the plurality of processors, wherein the plurality of cooling elements are configured to remove heat from the multi-channel processing system.
    Type: Application
    Filed: July 10, 2018
    Publication date: January 16, 2020
    Inventors: Christopher Brian Noll, Steven A. Avritch
  • Publication number: 20190310110
    Abstract: An example actuator control system includes a variable differential transformer (VDT) configured to measure displacement of a motor, and a motor controller configured to control the motor based on displacement data from the VDT. A circuit card assembly (CCA) interconnects the VDT to the motor controller. The CCA includes memory storing configuration data of the VDT, and the CCA is configured to provide the configuration data to the motor controller to calibrate the motor controller for use of the VDT. A method of configuring a motor controller is also disclosed.
    Type: Application
    Filed: April 6, 2018
    Publication date: October 10, 2019
    Inventors: Jeffrey A. Eldridge, Steven A. Avritch
  • Publication number: 20190303278
    Abstract: A method for testing autonomous reconfiguration logic for an electromechanical actuator includes executing a plurality of test cases against a computer model configured and operable to implement autonomous reconfiguration logic for an electromechanical actuator including a plurality of electromechanical motors to generate a first set of test results. The method further includes executing the plurality of test cases against a programmable logic device configured and operable to implement the autonomous reconfiguration logic for the electromechanical actuator to generate a second set of test results and comparing the first set of test results to the second set of test results.
    Type: Application
    Filed: April 2, 2018
    Publication date: October 3, 2019
    Inventors: David F. Dickie, Steven A. Avritch, Peter E. Gardow
  • Publication number: 20190296675
    Abstract: A linear motor actuator includes a plurality of stators mounted stationary relative to one another along a common actuation axis. A translator rod is mounted to the stators for linear motion relative to the stators along the actuation axis, wherein each stator is magnetically coupled to the translator rod to drive motion of the translator rod along the actuation axis.
    Type: Application
    Filed: June 14, 2019
    Publication date: September 26, 2019
    Inventor: Steven A. Avritch
  • Publication number: 20190267175
    Abstract: An example actuator assembly includes an actuator configured to move a rod. A variable differential transformer (VDT) is situated adjacent to the actuator. The VDT includes a core coupled to the rod such that movement of the rod causes a corresponding movement of the core. A plurality of windings surround the core for measuring displacement of the core. A shield surrounds the plurality of windings and shields the plurality of windings from a magnetic field of the actuator. The shield having a maximum permeability of 50,000-500,000. A LVDT configuration method is also disclosed.
    Type: Application
    Filed: February 23, 2018
    Publication date: August 29, 2019
    Inventors: Jeffrey A. Eldridge, Steven A. Avritch
  • Publication number: 20190235025
    Abstract: A method of detecting a fault in a sinusoidally controlled permanent magnet synchronous motor (PMSM). The method includes receiving a first rotor reference frame current demand, the first rotor reference frame current demand based on a current control for the PMSM and receiving a first rotor reference frame current feedback, the first rotor reference frame current feedback corresponding to the first rotor reference frame current demand received. The method also includes computing a first error of the rotor reference frame current based on the first rotor reference frame current demand and the first rotor reference frame current feedback and identifying a fault of the sinusoidally controlled PMSM if the first error exceeds a first selected threshold for a first selected duration.
    Type: Application
    Filed: January 26, 2018
    Publication date: August 1, 2019
    Inventors: Steven A. Avritch, David F. Dickie
  • Publication number: 20190233087
    Abstract: A fly-by-wire system includes an electromechanical actuator which includes a plurality of electromechanical motors. Each of the plurality of electromechanical motors is configured and operable to exchange operating status information with the other redundant electromechanical motors within the actuator. Also, each one of the plurality of electromechanical actuators is configured and operable to automatically configure itself for optimal mode of operation based on the received operating status information of at least one of the other electromechanical motors. The fly-by-wire system further includes a flight control computer operatively connected to the plurality of electromechanical motors within the actuator.
    Type: Application
    Filed: February 1, 2018
    Publication date: August 1, 2019
    Inventors: Steven A. Avritch, Jeffrey A. Eldridge, David F. Dickie
  • Patent number: 10338539
    Abstract: An example actuator control system includes an actuator, a plurality of motors configured to cooperatively operate the actuator, and a controller. The controller is configured to determine an output signal for controlling active ones of the motors during a current update cycle based on a first gain value, an integral contribution from the current update cycle, and an integral contribution from a preceding update cycle. The controller is configured to, based on a quantity of the motors that is active differing between the current and preceding update cycles, scale the integral contribution from the preceding update cycle for the output signal determination based on the first gain value and a second gain value from the preceding update cycle. A method of controlling a plurality of actuator motors is also disclosed.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: July 2, 2019
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Steven A. Avritch, Jeffrey A. Eldridge, David F. Dickie
  • Patent number: 10328872
    Abstract: A method and control system that implements a particular aircraft harnessing for an aircraft is provided. The control system includes an effector Line-Replaceable Unit (LRU) including a first connection port, a second connection port, and a first interconnect wire internally connecting the first connection port and the second connection port, a first control LRU connected using a first harnessing to the effector LRU, and a second control LRU connected using a second harnessing to the effector LRU, wherein the first control LRU and the second control LRU are configured to communicate using the first interconnect wire in the effector LRU.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: June 25, 2019
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Jeffrey A. Eldridge, Steven A. Avritch
  • Patent number: 10326398
    Abstract: A linear motor actuator includes a plurality of stators mounted stationary relative to one another along a common actuation axis. A translator rod is mounted to the stators for linear motion relative to the stators along the actuation axis, wherein each stator is magnetically coupled to the translator rod to drive motion of the translator rod along the actuation axis.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: June 18, 2019
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Steven A. Avritch
  • Patent number: 10248430
    Abstract: One or more embodiments here relate to a processing platform for performing channel management and channel monitoring of a control channel. The processing platform includes a first microcontroller comprising a first core. The processing platform includes a second microcontroller comprising a second core. The second microcontroller is dissimilar to the first microcontroller. The first core is in an active state to perform the channel management of the control channel. The second core is in a monitor state to perform the channel monitoring of the control channel.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: April 2, 2019
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Christopher Brian Noll, Steven A. Avritch
  • Patent number: 10243502
    Abstract: A system for monitoring a motor includes a movable component having a plurality of permanent magnets. The system also includes a plurality of stators having phase windings and surrounding the movable component. The system also includes a plurality of current sensors each configured to detect a detected current flowing to a corresponding stator of the plurality of stators. The system also includes a monitor configured to receive the detected current, perform a comparison of the detected current from each of the plurality of stators, and to identify a loss of redundancy of the motor based on the comparison.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: March 26, 2019
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Steven A. Avritch, David F. Dickie
  • Publication number: 20180173537
    Abstract: One or more embodiments here relate to a processing platform for performing channel management and channel monitoring of a control channel. The processing platform includes a first microcontroller comprising a first core. The processing platform includes a second microcontroller comprising a second core. The second microcontroller is dissimilar to the first microcontroller. The first core is in an active state to perform the channel management of the control channel. The second core is in a monitor state to perform the channel monitoring of the control channel.
    Type: Application
    Filed: December 16, 2016
    Publication date: June 21, 2018
    Inventors: Christopher Brian Noll, Steven A. Avritch
  • Publication number: 20180102721
    Abstract: A linear motor actuator includes a plurality of stators mounted stationary relative to one another along a common actuation axis. A translator rod is mounted to the stators for linear motion relative to the stators along the actuation axis, wherein each stator is magnetically coupled to the translator rod to drive motion of the translator rod along the actuation axis.
    Type: Application
    Filed: October 6, 2016
    Publication date: April 12, 2018
    Inventor: Steven A. Avritch
  • Publication number: 20180001844
    Abstract: A method and control system that implements a particular aircraft harnessing for an aircraft is provided. The control system includes an effector Line-Replaceable Unit (LRU) including a first connection port, a second connection port, and a first interconnect wire internally connecting the first connection port and the second connection port, a first control LRU connected using a first harnessing to the effector LRU, and a second control LRU connected using a second harnessing to the effector LRU, wherein the first control LRU and the second control LRU are configured to communicate using the first interconnect wire in the effector LRU.
    Type: Application
    Filed: June 29, 2016
    Publication date: January 4, 2018
    Inventors: Jeffrey A. Eldridge, Steven A. Avritch
  • Patent number: 9766299
    Abstract: A power system includes a first power input, a second power input, a power output, a first ideal diode coupled to the a power input and a power output and a second ideal diode coupled to a second power input and the power output. The power system also includes a first switching circuit coupled to the first power input and the first ideal diode and a second switching circuit coupled to the second power input and the second ideal diode, the switching circuits operating as an open or a short circuit based on an input. The power system also includes a test controller coupled to the first switching circuit, the second switching circuit and the power output and configured to determine an operating status of the power system based on an input to the first switch, inputs to the second switch and the power output.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: September 19, 2017
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Mark J. Collins, Ronald Daley, Steven A. Avritch
  • Publication number: 20170137141
    Abstract: A method for controlling a vehicle is provided. The method includes generating a digital control signal, generating a digital simulated signal based on the control signal, the digital simulated signal simulating one of a mechanical or analog input signal, converting the digital simulated signal into an analog signal, and controlling a control device of the vehicle using the analog signal.
    Type: Application
    Filed: November 12, 2015
    Publication date: May 18, 2017
    Inventors: Christopher Noll, Steven A. Avritch
  • Patent number: 9645948
    Abstract: In one example, a method includes receiving, by a controller device from a master device operably connected to the controller device, a memory access request configured to request access to computer-readable memory of the controller device. The method further includes sampling, by the controller device, time-varying data received from a controlled device operably connected to the controller device, and generating, by the controller device in response to receiving the memory access request, an access key using the sampled time-varying data received from the controlled device. The method further includes transmitting, by the controller device, the generated access key to the master device, and enabling, by the controller device, access to the computer-readable memory of the controller device in response to data write commands received from the master device that include an access code based on the access key.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: May 9, 2017
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Christopher Noll, Steven A. Avritch