Patents by Inventor Sang Joon Kim

Sang Joon Kim 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).

  • Coasting torque control system of vehicle and method using the same
    Patent number: 9834115
    Abstract: A coasting torque control method of a vehicle includes: determining whether external information is received; when the external information is received, acquiring one or more pieces of speed information about a road on which the vehicle is currently driving based on the received external information; selecting a coasting torque based on the acquired speed information; and controlling a drive motor coupled to a drive shaft of the vehicle based on the selected coasting torque.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: December 5, 2017
    Assignee: Hyundai Motor Company
    Inventor: Sang Joon Kim
  • Vehicle control method for energy recovery
    Patent number: 9834084
    Abstract: A hybrid vehicle control method is provided, in which a drive motor and an engine generate power and a hybrid starter generator connected to the engine generates electric power. The vehicle control method includes determining whether the vehicle is in a regenerative control mode and selecting a regenerative torque for the hybrid starter generator connected to the engine. The selected regenerative torque is applied to the hybrid starter generator and electric power is generated with the regenerative torque selected by the hybrid starter generator. In the regenerative torque selection, the regenerative torque with which maximum regenerative energy is produced is selected based on regenerative torque selection factors including a hybrid starter generator rotation speed.
    Type: Grant
    Filed: October 24, 2015
    Date of Patent: December 5, 2017
    Assignee: Hyundai Motor Company
    Inventor: Sang Joon Kim
  • METHOD AND APPARATUS TO REMOVING NOISE FROM ELECTROCARDIOGRAPHY (ECG) SENSOR SIGNAL
    Publication number: 20170340288
    Abstract: A method and an apparatus to remove a noise from an electrocardiography (ECG) sensor signal are provided. A noise removing method includes: receiving a sensor signal collected by an electrocardiography (ECG) sensor; extracting an ECG estimation signal from the sensor signal based on a peak value of the sensor signal; determining a first comparison value between the ECG estimation signal and a first reference signal indicating an average form of ECG signals; and classifying the ECG estimation signal as one of an ECG signal and a noise by comparing the first comparison value to a first threshold value.
    Type: Application
    Filed: April 12, 2017
    Publication date: November 30, 2017
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Chisung BAE, Jinhyun YUN, Sang Joon KIM
  • Apparatus and method for controlling auto cruise speed of vehicle
    Patent number: 9815463
    Abstract: A method for controlling an auto cruise speed of a vehicle includes: determining a feedback torque for correcting a speed error between a target speed set by a driver of the vehicle and a current speed that is a feedback speed detected by a speed sensor of a vehicle; determining a drive resistance according to the target speed by inputting the target speed; determining a first feedforward torque according to the determined drive resistance; determining a second feedforward torque based on a vehicle inertia and a variation of the target speed by inputting the target speed; and outputting a command for generating a wheel required torque that is corrected by adding the first feedforward torque and the second feedforward torque to the feedback torque.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: November 14, 2017
    Assignee: Hyundai Motor Company
    Inventors: Sang Joon Kim, Jae Sung Bang
  • Wearable device performing user authentication using bio-signals and authentication method of the same
    Patent number: 9811648
    Abstract: A wearable device includes a first sensor configured to detect a first biosignal generated in response to a gesture performed by a user, and a second sensor configured to detect a second biosignal of the user. The device further includes a memory configured to store, with respect to at least one user, information of the first biosignal and the second biosignal, and a processor configured to initiate user authentication based on a result of determining whether the detected first biosignal corresponds to the stored information, and authenticate the user by comparing the detected second biosignal to the stored information.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: November 7, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Mok Choi, Sang Joon Kim, Seung Keun Yoon
  • Method for learning the kisspoint of an engine clutch in a hybrid vehicle
    Patent number: 9789867
    Abstract: The present disclosure provides a method for learning a kisspoint of an engine clutch in a hybrid vehicle, which performs kisspoint learning of an engine clutch while driving by learning hydraulic pressure at the time when motor torque varies by gradually increasing clutch hydraulic pressure in an open state of the engine clutch when a driving load of a vehicle is constant to increase a kisspoint learning frequency of the engine clutch and improve kisspoint accuracy.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: October 17, 2017
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Sung Deok Kim, Sang Joon Kim
  • DRIVING MODE CONTROL METHOD AND APPARATUS OF HYBRID ELECTRIC VEHICLE
    Publication number: 20170291595
    Abstract: A driving mode control method and apparatus of a hybrid electric vehicle are provided. The driving mode control method includes decreasing a torque of an engine when a first driving mode in which both the engine and a first motor are driven is switched to a second driving mode driven by the first motor and applying a torque of a second motor. A clutch is then opened when a difference between the engine torque and the second motor torque is less than a first threshold torque.
    Type: Application
    Filed: September 14, 2016
    Publication date: October 12, 2017
    Inventors: Sang Joon Kim, Seong Ik Park, Kwon Chae Chung, Il Kwon Park
  • Method and apparatus for wirelessly transmitting energy based on frame
    Patent number: 9774373
    Abstract: An apparatus for wirelessly transmitting energy based on a frame is provided. The apparatus includes a transmitter configured to transmit, to at least one reception device, energy in a frame unit through a mutual resonance between a source resonator and a plurality of target resonators, and a controller configured to determine information included in the frame based on whether energy is transmitted to the at least one reception device, or based on whether data is transmitted to the at least one reception device.
    Type: Grant
    Filed: January 3, 2013
    Date of Patent: September 26, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ui Kun Kwon, Sang Joon Kim, Seung keun Yoon
  • Wireless energy transmission method, apparatus, and system
    Patent number: 9767954
    Abstract: Provided are a method and apparatus for wirelessly transmitting energy. A wireless energy transmitter may perform sampling to obtain first samples from an alternating current (AC) signal that is induced at an energy transmission (TX) end, and may correct symbol synchronization based on a difference between a sum of absolute values of the first samples and a sum of absolute values of second samples sampled during a symbol interval in which synchronization matching is performed between a switch of the energy TX end and a switch of the energy RX end.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: September 19, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang Joon Kim, Ui Kun Kwon, Seungkeun Yoon
  • Apparatus and method for controlling engine stop of hybrid electric vehicle
    Patent number: 9764732
    Abstract: An apparatus and method for controlling an engine stop of a hybrid electric vehicle provides an efficient torque in the operation of a hybrid starter generator, by applying a torque of a high efficiency point of the hybrid starter generator according to a drop of engine RPM when the engine is stopped, so as to improve fuel efficiency of a vehicle and damping vibration of the vehicle when the engine is stopped, by generating a negative torque on the hybrid starter generator side in accordance with the drop of the engine RPM when the engine is stopped, and by applying a torque of the point that gives the maximum charging power of the battery through the generated negative torque.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: September 19, 2017
    Assignee: Hyundai Motor Company
    Inventors: Sang Joon Kim, Jong Bum Oh, Sung Deok Kim, Il Kwon Park, Seong Ik Park
  • Apparatus and method for controlling engine clutch of hybrid vehicle
    Patent number: 9738270
    Abstract: An engine clutch control apparatus of a hybrid vehicle is provided. The apparatus includes an engine clutch that is disposed between an engine and a drive motor to selectively connect the engine and the drive motor and an integrated starter-generator that is connected with the engine to start the engine or to generate electricity. A vehicle controller releases or couples the engine clutch to implement a driving mode and determines a chargeable torque and an engine target estimation torque based on a generator rotation speed of the integrated starter-generator. An engine target torque and a charge torque are set based on the chargeable torque and a clutch input torque is generated using at least one of the engine target torque, an engine friction torque, and the charge torque. The engine clutch is then released when the clutch input torque is less than a reference value.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: August 22, 2017
    Assignee: Hyundai Motor Company
    Inventors: Kwonchae Chung, Sang Joon Kim, Young Chul Kim, Seong Ik Park, WooSuk Choi, Il Kwon Park
  • WIRELESS POWER TRANSMISSION APPARATUS FOR HIGH EFFICIENCY ENERGY CHARGING
    Publication number: 20170237279
    Abstract: A wireless power transmission apparatus for high efficiency energy charging, includes a resonator configured to transmit power, and a power supply unit configured to supply power to the resonator. The apparatus further includes a first switching unit configured to connect the resonator to the power supply unit, and disconnect the resonator from the power supply unit, and a controller configured to control the first switching unit based on an amount of current flowing into the resonator.
    Type: Application
    Filed: May 1, 2017
    Publication date: August 17, 2017
    Applicants: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Dankook University
    Inventors: Ui Kun KWON, Sang Joon KIM, Seung Keun YOON, Yeong Seok KO, Shi Hong PARK
  • BIOSIGNAL PROCESSING METHOD AND APPARATUS
    Publication number: 20170231579
    Abstract: A method and apparatus for processing a biosignal is disclosed. The apparatus may extract reference points from a waveform of a biosignal, determine a pulse direction of the biosignal based on the extracted reference points, and determine a feature point of the biosignal based on a feature point determining method corresponding to the determined pulse direction of the biosignal.
    Type: Application
    Filed: September 21, 2016
    Publication date: August 17, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Changmok CHOI, Seungkeun YOON, Ui Kun KWON, Sang-joon KIM
  • Wireless power transmission system
    Patent number: 9728997
    Abstract: Provided is a device and method for wirelessly transmitting power, and a wireless power transmission device that may control an electrical connection between a power charger and a transmitter to charge a source resonator with power and transmit the charged power to a target resonator through mutual resonance.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: August 8, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang Joon Kim, Ui Kun Kwon
  • ELECTROCARDIOGRAM (ECG) SIGNAL BASED AUTHENTICATION APPARATUS AND METHOD
    Publication number: 20170215806
    Abstract: An authentication apparatus includes one or more processors configured to temporally implement a neural network, used to extract a feature value from hidden nodes, that is connected to input nodes to which an electrocardiogram (ECG) signal is input so as to share a weight set with the input nodes, and to match the ECG signal and the extracted feature value to a user for registration.
    Type: Application
    Filed: August 25, 2016
    Publication date: August 3, 2017
    Applicants: SAMSUNG ELECTRONICS CO., LTD., Korea Advanced Institute of Science and Technology
    Inventors: Chisung BAE, Jin Woo SHIN, Sung-Soo AHN, Sang Joon KIM
  • COMMUNICATION SYSTEM USING WIRELESS POWER
    Publication number: 20170222486
    Abstract: Provided is an apparatus and method for wirelessly transmitting power. According to one general aspect, a communication device using wireless power may include: a transmitter configured to transmit, to a target resonator, energy stored in a source resonator through mutual resonance; an energy compensator configured to compensate for energy expended in the source resonator; and a controller configured to control an electrical connection providing energy to the source resonator.
    Type: Application
    Filed: April 14, 2017
    Publication date: August 3, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Joon KIM, Ui Kun KWON
  • Method and apparatus for controlling battery charge of motor system
    Patent number: 9714025
    Abstract: A motor control method is provided and includes reducing first power generated by a first motor and operating a second motor to generate second power corresponding to the reduced first power when a temperature of the first motor is greater than a first temperature. Additionally, generation of the first power by the first motor is suspended and the second power is generated by the second motor when the temperature of the first motor is greater than a second temperature. Generation of the second power by the second motor is suspended when at least one of the temperature of the first motor and a temperature of the second motor is greater than a third temperature.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: July 25, 2017
    Assignee: Hyundai Motor Company
    Inventors: Dong Ho Yang, Young Chul Kim, Sang Joon Kim
  • Shift control method and system for hybrid vehicle
    Patent number: 9709167
    Abstract: A shift control method and system for a hybrid vehicle are provided to increase the recovery rate of regenerative energy, improve the fuel efficiency, and minimize the loss of the fuel efficiency upon reaccelerating after braking. The method include: acquiring in real-time information regarding a transmission input speed during driving and sensing a brake pedal operation. In addition, whether a road driving situation or a driver tendency corresponds to a skip shift allowable condition is detected when the brake pedal operation is sensed. A target shift stage to which a skip shift of two or more stages is performed is selected from a current shift stage based on the transmission input speed in real-time, when the road driving situation or the driver tendency corresponds to the skip shift allowable condition. Then a transmission is operated to shift to the selected target shift stage.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: July 18, 2017
    Assignee: Hyundai Motor Company
    Inventors: Sang Joon Kim, Chan Ho Lee, Joon Young Park
  • ELECTROCARDIOGRAM (ECG) AUTHENTICATION METHOD AND APPARATUS
    Publication number: 20170188971
    Abstract: Disclosed are an electrocardiogram (ECG) authentication method and apparatus, and a training method and apparatus for training a neural network model used for ECG authentication, the ECG authentication apparatus being configured to acquire an ECG signal of a subject, extract a semantic feature of the ECG signal, and authenticate the subject based on the extracted semantic feature.
    Type: Application
    Filed: December 7, 2016
    Publication date: July 6, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yang LIU, Xuetao FENG, Chao ZHANG, Chisung BAE, Sang-joon KIM
  • Method and apparatus for wireless energy reception using hybrid synchronization
    Patent number: 9698630
    Abstract: A wireless energy reception apparatus includes a target resonator configured to receive energy on a frame-by-frame basis from an energy transmission end through a resonance with a source resonator in a symbol duration constituting a criterion for transmitting energy from the energy transmission end to an energy reception end; a load end configured to receive power from the target resonator; a switching unit configured to connect the target resonator to the load end, and disconnect the target resonator from the load end; and a controller configured to control symbol synchronization by detecting a start point of a symbol based on a distance between the source resonator and the target resonator.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: July 4, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ui Kun Kwon, Sang Joon Kim, Seung Keun Yoon