Patents by Inventor Sung Hyun Cho

Sung Hyun Cho 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).

  • Patent number: 10571018
    Abstract: A shift control method for a vehicle when CAN communication fails is provided to make a transmission control unit communicate with a motor controller via an LIN communication line. The shift control method includes: a failure sensing step of sensing, by the transmission control unit, whether the CAN communication fails; a shift stage sensing step of sensing, by the transmission control unit, whether a target shift stage is changed when the CAN communication failure is sensed as a performance result of the failure sensing step; and a gear engaging step of controlling, by the transmission control unit, the motor controller to drive a gear actuator through an LIN communication line so as to engage a target stage gear when the target shift stage is changed as the performance result of the shift stage sensing step.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: February 25, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Sung Hyun Cho
  • Patent number: 10508736
    Abstract: An upshift control method for a dual clutch transmission (DCT) for a vehicle includes: determining, by a controller, whether or not an inertia phase begins when a driver accelerator pedal depression amount increases during power-on upshifting; calculating, by the controller, a first control amount, which is a first final clutch torque for controlling an engaging clutch, when the inner phase begins, in consideration of a difference between a current accelerator pedal depression amount and an accelerator pedal depression amount at beginning of the inertia phase, a difference between the current accelerator pedal depression amount and a maximum value of an accelerator pedal depression amount during the inertia phase elapsed until a present time, and a target engine torque, and controlling, by the controller, the engaging clutch with the final clutch torque calculated in the calculating.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: December 17, 2019
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Sung Hyun Cho, Dong Hyup Kang
  • Publication number: 20190353244
    Abstract: A clutch control method of the vehicle provided with the double clutch transmission may include determining, by the controller, whether a vehicle is travelling at the lowest shifting stage or the highest shifting stage and the pre-engagement of a proximate shifting stage is completed or not; storing a learned driveshaft clutch torque and a current clutch temperature and initiating a timer when it is determined that the learned driveshaft clutch torque is considered reliable by the controller learning the driveshaft clutch torque; determining, by the controller, a plurality of conditions including the passage of time to determine whether a touch point learning of the non-driveshaft clutch is necessary or not; and disengaging, by the controller, the proximate shifting stage of the non-driveshaft to neutral when it is determined that the touch point learning is necessary and performing the touch point learning of non-driveshaft.
    Type: Application
    Filed: October 11, 2018
    Publication date: November 21, 2019
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Sung Hyun Cho
  • Patent number: 10479351
    Abstract: Disclosed is a downshift control method for a hybrid DCT vehicle. The method includes: determining, by a controller, whether a downshift is desired while a vehicle travels on a slope having equal to or more than a predetermined reference gradient; comparing, by the controller, a motor speed with a desired shift stage input shaft speed, and selectively performing either a forward control step of increasing a motor torque in a forward direction to increase the motor speed in the forward direction or a negative control step of increasing the motor torque in a negative direction to increase the motor speed in the negative direction. Thus, it is possible to reduce the backward sliding of the vehicle by suppressing the motor speed from unnecessarily increasing and rapidly finishing the downshift.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: November 19, 2019
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Sung Hyun Cho
  • Patent number: 10464562
    Abstract: A shift control method for a rapidly accelerating DCT vehicle, may include determining, by a controller, whether or not there occurs a power-on upshift situation in which an accelerator pedal is depressed 50% or more; estimating, by the controller, a predicted time remaining until an engine speed enters a red zone when engagement of a target shift-stage gear is completed under the power-on upshift situation; and performing, by the controller, a torque phase by updating a predetermined target torque phase time to fall within the predicted time when the predicted time is less than the target torque phase time and controlling a disengaging clutch and an engaging clutch depending on the updated target torque phase time.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: November 5, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Sung Hyun Cho
  • Publication number: 20190308598
    Abstract: A method and a system for verifying normal operation of a negative pressure sensor of a brake booster is provided. The method and system verify whether the negative pressure sensor of the brake booster is in normal operation and the normal operation of the booster negative pressure sensor is detected by mutually verifying values measured by the booster negative pressure sensor and values measured by sensors that indirectly sense the booster negative pressure.
    Type: Application
    Filed: November 3, 2018
    Publication date: October 10, 2019
    Inventors: Young-Kyun Son, Hee-Sung Yoon, Sung-Hyun Cho
  • Patent number: 10408286
    Abstract: The present disclosure provides technology for preventing burst of a clutch under the driving circumstance, which enters into a road surface with a high friction coefficient after passing through a road surface with a low friction coefficient in vehicle driving; and the present disclosure determines if a wheel-lock has occurred in driving based on a factor reflecting a driving status of the vehicle; upon determining occurrence of the wheel-lock, in the case that a vehicle speed rapidly increases and a difference value between a transmission input shaft speed and an engine speed, which form a current driving gear, is larger than a set value, blocks a mechanical engagement between a clutch and a wheel, which form the current driving gear.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: September 10, 2019
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Sung Hyun Cho, Young Min Yoon
  • Publication number: 20190257420
    Abstract: A control method for a vehicle with a Dual Clutch Transmission (DCT) may include: determining whether it is a wheel speed-unknown state by a TCU, determining whether an input shaft speed sensor is in a normal state when it is the wheel speed-unknown state, determining whether IG-OFF occurs when it is the wheel speed-unknown state and the input shaft speed sensor IS for is in a normal state, storing information related to the current wheel speed-unknown state and an output shaft speed of the DCT determined by the input shaft speed sensor, determining whether the TCU is not in TCU latch-off and whether it was the wheel speed-unknown state immediately before IG-OFF on the basis of the stored data, when IG-ON occurs, and performing pre-engaging on the basis of the DCT output shaft speed stored immediately after IG-OFF, when the TCU is not in latch-off and it was the wheel speed-unknown state immediately before IG-OFF.
    Type: Application
    Filed: August 3, 2018
    Publication date: August 22, 2019
    Applicants: Hyundai Motor Company, Kia Motors Corp.
    Inventors: Sung Hyun Cho, Seong Hwan Cheong
  • Publication number: 20190248371
    Abstract: A shifting control method for a vehicle with a dual clutch transmission (DCT), the shifting control method may include controlling engine torque to be increased according to reserve demand torque by giving the reserve demand torque of an engine to be increased to a predetermined value or more when if a controller determines that the vehicle enters a manual power off and downshift shifting; controlling, by the controller, a release side clutch to be released; controlling, by the controller, an engine torque to perform a control so that engine speed follows coupling side input shaft speed; and completing the shifting by performing a control so that a coupling side clutch is coupled when it is determined that the actual shift is completed.
    Type: Application
    Filed: June 15, 2018
    Publication date: August 15, 2019
    Applicants: Hyundai Motor Company, Kia Motors Corp.
    Inventor: Sung Hyun Cho
  • Patent number: 10374265
    Abstract: The present invention relates to a method of automatically setting a communication resistance of an energy storage device (ESS), and more particularly, to a method of automatically controlling connection of a battery module and a terminating resistance by using a battery management system (BMS) ID allocated to each battery module constituting the ESS.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: August 6, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Duk Su Kim, Jong Kook Lee, Ho Soo Kim, Sung Hyun Cho, Geun Wook Lim, Jong Doo Park, Jin Seok Heo
  • Publication number: 20190221370
    Abstract: A capacitor component includes a body having a first surface and a second surface opposing each other and including a multilayer structure in which a plurality of dielectric layers are stacked and first and second internal electrodes are alternately disposed with respective dielectric layers interposed therebetween and exposed to the first surface and the second surface, respectively, first and second metal layers covering the first surface and the second surface and connected to the first and second internal electrodes, respectively, first and second ceramic layers covering the first and second metal layers, and first and second external electrodes covering the first and second ceramic layers and connected to the first and second metal layers to be electrically connected to the first and second internal electrodes, respectively.
    Type: Application
    Filed: March 28, 2019
    Publication date: July 18, 2019
    Inventors: Sung Hyun CHO, Byeong Chan KWON, Yong Jin YUN, Ki Pyo HONG, Jae Yeol CHOI
  • Patent number: 10338727
    Abstract: Present invention is related to a display device and a driving method thereof, and particularly, to a display device and a driving method thereof, which control an output timing of a scan signal output to gate lines by using two or more external start signals having different timings.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: July 2, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Sang Hee Yu, Hun Jeoung, Sung Hyun Cho, Bo Sun Lee, Sung Wook Chang
  • Publication number: 20190196966
    Abstract: A storage device includes at least one nonvolatile memory device including a plurality of memory blocks, the nonvolatile memory device configured to store user data and meta data in the plurality of memory blocks, and a device controller configured to control the nonvolatile memory device, to calculate a user cost corresponding to a time of memory accesses to the user data to be performed at garbage collection with respect to each of the plurality of memory blocks, to calculate a meta cost corresponding to a time of memory accesses to the meta data to be performed at the garbage collection with respect to each of the plurality of memory blocks, to select a victim block among the plurality of memory blocks based on the user cost and the meta cost, and to perform the garbage collection on the victim block.
    Type: Application
    Filed: September 28, 2018
    Publication date: June 27, 2019
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: In-Tae HWANG, Ju-Young LEE, Won-Jin LIM, Sung-Hyun CHO
  • Patent number: 10332467
    Abstract: Present invention relates to a display device and a driving method thereof. In particular, the present invention is to provide a display device and a driving method thereof, which block at least one of scan signals output from gate lines according to an enable signal.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: June 25, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Bo Sun Lee, Hun Jeoung, Sang Hee Yu, Sung Hyun Cho, Sung Wook Chang
  • Patent number: 10324514
    Abstract: The present invention provides a device and method for waking up an MCU of a BMS operating in a sleep mode. More specifically, the present invention provides a device and method for waking up an MCU of a BMS that is in a sleep mode automatically by generating a wake-up signal only once, when an external power source is connected, without user's operation.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: June 18, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Sung Hyun Cho, Jin Seok Heo, Duk Su Kim, Jong Kook Lee, Ho Soo Kim, Geun Wook Lim, Jong Doo Park
  • Publication number: 20190176807
    Abstract: Disclosed is a downshift control method for a hybrid DCT vehicle. The method includes: determining, by a controller, whether a downshift is desired while a vehicle travels on a slope having equal to or more than a predetermined reference gradient; comparing, by the controller, a motor speed with a desired shift stage input shaft speed, and selectively performing either a forward control step of increasing a motor torque in a forward direction to increase the motor speed in the forward direction or a negative control step of increasing the motor torque in a negative direction to increase the motor speed in the negative direction. Thus, it is possible to reduce the backward sliding of the vehicle by suppressing the motor speed from unnecessarily increasing and rapidly finishing the downshift.
    Type: Application
    Filed: May 21, 2018
    Publication date: June 13, 2019
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Sung Hyun CHO
  • Patent number: 10316957
    Abstract: A vehicle is equipped with a dual clutch transmission controlled by a shifting control method to achieve quick shifting and direct engaging through quick synchronous control of the rotational speed of an engine and cooperative control of engine torque when a driver intends to rapidly accelerate the vehicle while shifting. The method includes: a rapid acceleration determining step in which a controller determines whether the vehicle is rapidly accelerated based on an output value according to a driving state of the vehicle until a torque handover period is entered, when shifting is started; and an interlocking step of controlling the engagement clutch torque over a predetermined desired engagement clutch torque to cause interlocking based on a torque value determined in accordance with a rapid acceleration level determined in the torque handover period, when the controller determines that the vehicle is rapidly accelerated.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: June 11, 2019
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Sung Hyun Cho, Sang Mo Ha
  • Patent number: 10314533
    Abstract: A method and an apparatus for recommending a route are provided. The route recommending method includes obtaining user's current body information; obtaining geographic information from a current position to a destination; and determining a recommended route to the destination on the basis of the body information and the geographic information.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: June 11, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jae-young Lee, Cory Kim, Sung-hyun Cho
  • Publication number: 20190168762
    Abstract: A shift control method for a rapidly accelerating DCT vehicle, may include determining, by a controller, whether or not there occurs a power-on upshift situation in which an accelerator pedal is depressed 50% or more; estimating, by the controller, a predicted time remaining until an engine speed enters a red zone when engagement of a target shift-stage gear is completed under the power-on upshift situation; and performing, by the controller, a torque phase by updating a predetermined target torque phase time to fall within the predicted time when the predicted time is less than the target torque phase time and controlling a disengaging clutch and an engaging clutch depending on the updated target torque phase time.
    Type: Application
    Filed: June 8, 2018
    Publication date: June 6, 2019
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Sung Hyun Cho
  • Publication number: 20190170250
    Abstract: An upshift control method for a dual clutch transmission (DCT) for a vehicle includes: determining, by a controller, whether or not an inertia phase begins when a driver accelerator pedal depression amount increases during power-on upshifting; calculating, by the controller, a first control amount, which is a first final clutch torque for controlling an engaging clutch, when the inner phase begins, in consideration of a difference between a current accelerator pedal depression amount and an accelerator pedal depression amount at beginning of the inertia phase, a difference between the current accelerator pedal depression amount and a maximum value of an accelerator pedal depression amount during the inertia phase elapsed until a present time, and a target engine torque, and controlling, by the controller, the engaging clutch with the final clutch torque calculated in the calculating.
    Type: Application
    Filed: May 21, 2018
    Publication date: June 6, 2019
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Sung Hyun CHO, Dong Hyup KANG