Patents by Inventor Su Jung Yoo

Su Jung Yoo 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: 20160144859
    Abstract: A system and method for performing autonomous navigation of a vehicle are disclosed, which recognize a possibility of collision risk through path estimation of a target vehicle, and generate an autonomous navigation path. The autonomous navigation system for a vehicle includes: a target-vehicle information detection unit configured to detect traveling information of a target vehicle; and a path generation unit configured to estimate movement of the target vehicle on the basis of the information received from the target-vehicle information detection unit, calculate a collision risk value by recognizing a possibility of collision risk between an ego-vehicle and the target vehicle, and generate an autonomous navigation path of the ego-vehicle.
    Type: Application
    Filed: March 24, 2015
    Publication date: May 26, 2016
    Inventors: Su Jung YOO, Ji Hyun YOON, Min Yong SHIN, Hoi Won KIM
  • Publication number: 20160129907
    Abstract: A driving path planning apparatus for an autonomous vehicle includes a driving information obtainer to obtain crossroad information, current velocity, and velocity setting of the vehicle. A global path planner plans a base frame, and an environment recognizer recognizes obstacle on a path and lane information of the vehicle. The apparatus also includes a velocity profile generator to generate a velocity profile for the vehicle, using current velocity and velocity setting, a candidate path planner to plan candidate paths for the vehicle, using velocity profile and base frame, and a path selector to check whether or not the candidate paths have collision risks and select one candidate path of the candidate paths as a driving path for the autonomous vehicle.
    Type: Application
    Filed: August 24, 2015
    Publication date: May 12, 2016
    Inventors: Hoi Won KIM, Su Jung YOO, Min Yong SHIN, Kyoung Jun LEE
  • Patent number: 9199377
    Abstract: Provided are a method and system for extracting intended torque for a wearable robot. The method makes use of an angle or angular velocity of rotation of a motor driving a joint and an angle or angular velocity of rotation of a link connected to the joint, and includes a friction outputting process of outputting an estimated value of friction torque from the angle of rotation of the motor, a motor torque calculating process of calculating motor torque from the angular velocity of rotation of the motor, a link rotation calculating process of calculating the angular velocity of rotation of the link, and an intended torque calculating process of substituting the motor torque and the angular velocity of rotation of the link into a disturbance observer, and calculating an estimated value of the intended torque applied by a wearer.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: December 1, 2015
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Su Jung Yoo, Woo Sung Yang
  • Patent number: 9114524
    Abstract: Disclosed herein is a method of obtaining the intended manipulation torque of a user for a wearable robot. The method allows the wearable robot, the motion of each joint of which is operated by a motor and which is capable of measuring a variation in current in the motor of each joint and calculating a torque at each joint, to simply and rapidly extract the intended manipulation torque of the user using both an acceleration value (e.g., measured by an acceleration sensor installed on a gripper), and the current variation of the motor, in a state in which the wearable robot does not know the weight of a weight object to be lifted with the gripper. Accordingly, the wearable robot may be suitably controlled at a comparatively lower cost.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: August 25, 2015
    Assignee: Hyundai Motor Company
    Inventors: Su Jung Yoo, Woo Sung Yang
  • Patent number: 9061420
    Abstract: A method for extracting intended torque for a wearable robot includes a motor torque calculating step, a link rotation calculating step and an intended torque calculating step. In the motor torque calculating step, motor torque is calculated from the angular velocity of rotation of the motor. In the link rotation calculating step, the angular velocity of rotation of the link is calculated. In the intended torque calculating step, the motor torque and the angular velocity of rotation of the link are substituted into a disturbance observer, and an estimated value of the intended torque applied by a wearer is calculated.
    Type: Grant
    Filed: March 16, 2013
    Date of Patent: June 23, 2015
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Su Jung Yoo, Woo Sung Yang
  • Publication number: 20140172170
    Abstract: Provided are a method and system for extracting intended torque for a wearable robot. The method makes use of an angle or angular velocity of rotation of a motor driving a joint and an angle or angular velocity of rotation of a link connected to the joint, and includes a friction outputting process of outputting an estimated value of friction torque from the angle of rotation of the motor, a motor torque calculating process of calculating motor torque from the angular velocity of rotation of the motor, a link rotation calculating process of calculating the angular velocity of rotation of the link, and an intended torque calculating process of substituting the motor torque and the angular velocity of rotation of the link into a disturbance observer, and calculating an estimated value of the intended torque applied by a wearer.
    Type: Application
    Filed: March 18, 2013
    Publication date: June 19, 2014
    Applicant: Hyundai Motor Company
    Inventors: Su Jung YOO, Woo Sung YANG
  • Publication number: 20140172169
    Abstract: A method for extracting intended torque for a wearable robot includes a motor torque calculating step, a link rotation calculating step and an intended torque calculating step. In the motor torque calculating step, motor torque is calculated from the angular velocity of rotation of the motor. In the link rotation calculating step, the angular velocity of rotation of the link is calculated. In the intended torque calculating step, the motor torque and the angular velocity of rotation of the link are substituted into a disturbance observer, and an estimated value of the intended torque applied by a wearer is calculated.
    Type: Application
    Filed: March 16, 2013
    Publication date: June 19, 2014
    Inventors: Su Jung Yoo, Woo Sung Yang
  • Publication number: 20130173060
    Abstract: Disclosed herein is a method of obtaining the intended manipulation torque of a user for a wearable robot. The method allows the wearable robot, the motion of each joint of which is operated by a motor and which is capable of measuring a variation in current in the motor of each joint and calculating a torque at each joint, to simply and rapidly extract the intended manipulation torque of the user using both an acceleration value (e.g., measured by an acceleration sensor installed on a gripper), and the current variation of the motor, in a state in which the wearable robot does not know the weight of a weight object to be lifted with the gripper. Accordingly, the wearable robot may be suitably controlled at a comparatively lower cost.
    Type: Application
    Filed: June 21, 2012
    Publication date: July 4, 2013
    Applicant: Hyundai Motor Company
    Inventors: Su Jung Yoo, Woo Sung Yang