Patents by Inventor Chang Dug Lee

Chang Dug Lee 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).

  • VEHICLE BATTERY CHARGING APPARATUS AND METHOD USING THE SAME
    Publication number: 20150175020
    Abstract: A charging method for a vehicle is provided that includes receiving, by a controller, a control pilot (CP) signal from electric vehicle supply equipment (EVSE) and smoothing the CP signal using a duty ratio of the CP signal. In addition, the controller is configured to compensate the smoothed CP signal and determine whether the compensated CP signal is within a predetermined range. The vehicle battery is then charged when the compensated CP signal is within the predetermined range.
    Type: Application
    Filed: August 15, 2014
    Publication date: June 25, 2015
    Inventors: Jeeheon Kim, Gyu Yeong Choe, Chang Dug Lee