Patents by Inventor Chang Ryeol Ryu

Chang Ryeol Ryu 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).

  • Method and system for variably adjusting voltage of LDC for hybrid vehicle
    Patent number: 9873334
    Abstract: A method and system are provided for variably adjusted voltage of the LDC applied with an IBS (Intelligent Battery Sensor). The LDC output voltage control mode is determined in each of three driving modes, and the high electric loads are separated into two or more groups. The LDC output voltage value and the order priority are differentiated based on the durability of the auxiliary battery. Additionally, an LDC output voltage order table is generated according to the driving mode and the SOC state based on the auxiliary battery SOC information obtained from an IBS. Thus, consumed energy of the LDC and an energy consumption amount of the auxiliary battery are minimized, thus improving fuel efficiency.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: January 23, 2018
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Dong Jun Shin, Yong Kak Choi, Soung Han Noh, Hwan Hwang, Jun Yeon Park, Chang Ryeol Ryu
  • METHOD AND SYSTEM FOR VARIABLY ADJUSTING VOLTAGE OF LDC FOR HYBRID VEHICLE
    Publication number: 20160121725
    Abstract: A method and system are provided for variably adjusted voltage of the LDC applied with an IBS (Intelligent Battery Sensor). The LDC output voltage control mode is determined in each of three driving modes, and the high electric loads are separated into two or more groups. The LDC output voltage value and the order priority are differentiated based on the durability of the auxiliary battery. Additionally, an LDC output voltage order table is generated according to the driving mode and the SOC state based on the auxiliary battery SOC information obtained from an IBS. Thus, consumed energy of the LDC and an energy consumption amount of the auxiliary battery are minimized, thus improving fuel efficiency.
    Type: Application
    Filed: September 22, 2015
    Publication date: May 5, 2016
    Inventors: Dong Jun Shin, Yong Kak Choi, Soung Han Noh, Hwan Hwang, Jun Yeon Park, Chang Ryeol Ryu