Patents by Inventor David Lee Coats

David Lee Coats 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: 20240166075
    Abstract: An electric vehicle supply equipment (EVSE) holster including a locking mechanism and an image capture device is described herein. The image capture device is configured to capture image data relating to a connector face of the charging connector when the charging connector is inserted into the holster. The image data is then analyzed to determine if a physical abnormality is present on the charging connector (for example, damage to the charging connector or debris lodged in the charging connector. If a physical abnormality is detected, the locking mechanism is actuated to lock the charging connector to the holster until maintenance is performed on the charging connector.
    Type: Application
    Filed: November 17, 2022
    Publication date: May 23, 2024
    Applicant: Amazon Technologies, Inc.
    Inventors: Mike MacGregor, Bhavik Patel, David Lee Coats
  • Publication number: 20240127369
    Abstract: A method for determining a charging price for an electric charging site includes receiving time tags and data obtained based on automated metering infrastructure (AMI) data for the electric charging site, and weather information for a service area of the electric charging site; clustering power consumption of the electric charging site with similar weather information and time tags; calculating a center of mass and a distribution confidence parameter for the clustered power consumption to obtain a look-up table; retrieving historical information of voltage VPCC and injection power Psite pairs that is measured at a point of common coupling (PCC) of the electric charging site; receiving weather forecast information for the service area of the electric charging site; and calculating a dynamic hosting capacity (DHC) curve and a price curve based on the center of mass and the distribution confidence parameter, the VPCC and Psite pairs, and the weather forecast information.
    Type: Application
    Filed: October 13, 2022
    Publication date: April 18, 2024
    Applicant: ABB Schweiz AG
    Inventors: Zhenyuan Wang, Alexander Brissette, Yuzhi Zhang, David Lee Coats, Himani Ravindra Pathak
  • Publication number: 20230050490
    Abstract: A method for determining whether a power system is encountering a malicious attack is provided. The method comprises: receiving a plurality of first phasor measurement unit (PMU) measurements from a plurality of PMUs of the power system; determining a plurality of expected PMU measurements associated with a future time period based on an optimization algorithm that uses differences between a plurality of consecutive predictive entries and the plurality of first PMU measurements; receiving, from the plurality of PMUs, a plurality of second PMU measurements associated with the future time period; determining whether the power system is encountering the malicious attack based on comparing the plurality of expected PMU measurements with the plurality of second PMU measurements; and executing an action based on whether the power system is encountering the malicious attack.
    Type: Application
    Filed: August 4, 2021
    Publication date: February 16, 2023
    Applicant: ABB Schweiz AG
    Inventors: Mohammad Razeghi-Jahromi, David Lee Coats, James D. Stoupis
  • Publication number: 20230036843
    Abstract: A method for recovering missing phase measurement unit (PMU) measurements from a plurality of PMUs is provided. The method comprises: receiving a plurality of obtained PMU measurements from the plurality of PMUs; populating a PMU dataset based on the plurality of obtained PMU measurements; determining a plurality of missing entries within the PMU dataset, wherein each of the plurality of missing entries indicates a missing PMU measurement within the PMU dataset at a particular time; determining a plurality of substitute entries for the plurality of missing entries based on an optimization algorithm that determines differences associated with a missing entry, of the plurality of missing entries, and a first set of PMU measurements, of the plurality of obtained PMU measurements, that are taken immediately prior to the missing entry; and inserting the plurality of substitute entries into the PMU dataset to generate a new PMU dataset.
    Type: Application
    Filed: July 22, 2021
    Publication date: February 2, 2023
    Applicant: ABB Schweiz AG
    Inventors: Mohammad Razeghi-Jahromi, David Lee Coats, James D. Stoupis