Patents by Inventor Allen Lukowitz

Allen Lukowitz 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).

  • Temperature estimation and control systems, methods, and devices for a battery pack charger
    Patent number: 11258272
    Abstract: A battery pack charger includes a first circuit region, a second circuit region, an input voltage measuring circuit, a temperature measurement device, and a controller. The controller is configured to measure an input voltage to the charger using the input voltage measuring circuit, measure a temperature of the second circuit region using the temperature measurement device, and estimate a temperature of the first circuit region based on the input voltage to the charger and the measured temperature of the second circuit region. The controller is further configured to select one of a plurality of correlations between the temperature of the second circuit region and the temperature of the first circuit region based on the input voltage to the charger to estimate the temperature of the first circuit region. After the temperature of the first circuit region has been estimated, one or more control operations associated with the charger can be performed.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: February 22, 2022
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventors: Donald J. Truettner, Allen Lukowitz, Vasil Zhmendak
  • TEMPERATURE ESTIMATION AND CONTROL SYSTEMS, METHODS, AND DEVICES FOR A BATTERY PACK CHARGER
    Publication number: 20200203969
    Abstract: A battery pack charger includes a first circuit region, a second circuit region, an input voltage measuring circuit, a temperature measurement device, and a controller. The controller is configured to measure an input voltage to the charger using the input voltage measuring circuit, measure a temperature of the second circuit region using the temperature measurement device, and estimate a temperature of the first circuit region based on the input voltage to the charger and the measured temperature of the second circuit region. The controller is further configured to select one of a plurality of correlations between the temperature of the second circuit region and the temperature of the first circuit region based on the input voltage to the charger to estimate the temperature of the first circuit region. After the temperature of the first circuit region has been estimated, one or more control operations associated with the charger can be performed.
    Type: Application
    Filed: December 17, 2019
    Publication date: June 25, 2020
    Inventors: Donald J. Truettner, Allen Lukowitz, Vasil Zhmendak