Patents by Inventor Chul Soon KIM
Chul Soon 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).
-
Patent number: 11928171Abstract: An example uniform resource locator (URL) information providing method includes obtaining a text from a document including location information and identifying the location information, transmitting an original URL corresponding to the identified location information to an external apparatus and receiving a shortened URL corresponding to the original URL, generating an optical recognition code corresponding to the received shortened URL and obtaining information related to a content provided from the original URL from the external apparatus based on the original URL, changing the document based on the shortened URL, the optical recognition code, and the information related to the content provided from the original URL, and generating the changed document as page description language data.Type: GrantFiled: September 20, 2021Date of Patent: March 12, 2024Assignee: Hewlett-Packard Development Company, L.P.Inventors: Ji Hyun Yoon, Jung Nam Bae, Yoon Soo Lee, Chul Gee Lee, Tae Soon Kim
-
Publication number: 20230173873Abstract: The present invention relates to a vehicular heat management system capable of inducing an increase in refrigerant superheat degree without unconditionally turning off a compressor when the refrigerant superheat degree on the discharge side of a chiller is less than or equal to a lower limit value. The vehicular heat management system includes: a compressor; a condensing heat exchanger; an expansion valve; an evaporation heat exchanger; and a control part configured to, when a refrigerant superheat degree on a discharge side of the evaporation heat exchanger is lowered to a predetermined lower limit value or less, control, step by step, at least two devices directly involved in the increase and decrease of the refrigerant superheat degree to increase the refrigerant superheat degree until the refrigerant superheat degree exceeds the lower limit value.Type: ApplicationFiled: July 30, 2021Publication date: June 8, 2023Inventors: Dae Yeop JEONG, Chul Soon KIM, Sang Jun YOO, Hong Rae JUNG, Tak Jun KIM, Goong Jun NAM, Hee Jin RYU, Jae Woo LEE
-
Patent number: 11658565Abstract: An apparatus for controlling a power factor correction circuit of a charger for charging a vehicle batter is configured to correct a power factor of an input AC voltage through switching of a switching element. The apparatus for controlling the power factor correction circuit includes: a phase angle detection unit configured to detect phase angle information of the input AC voltage; and a frequency determination unit configured to synchronize a period in which a preset frequency variation value varies, with a period of the input AC voltage by applying the phase angle information to the frequency variation value, and determine, as a switching frequency of the switching element, a value obtained by applying the synchronized frequency variation value to a preset fundamental frequency value.Type: GrantFiled: October 18, 2021Date of Patent: May 23, 2023Assignees: Hyundai Motor Company, Kia CorporationInventors: Jee Heon Kim, Hyun Wook Seong, Sung Uk Park, Chul Soon Kim, Hui Sung Jang, Dong Gyun Woo
-
Publication number: 20230097935Abstract: An embodiment control device includes a voltage controller configured to output an input current command value of a power factor correction (PFC) based on an output voltage and an output voltage command value of the PFC, a current controller configured to control an input current of the PFC by determining a switching duty of the PFC based on the input current command value, and a current command upper limit generator configured to output an input current command upper limit value of the PFC based on an input current limit value and an input current command offset value of the PFC, wherein the input current command upper limit value has an alternating current (AC) component.Type: ApplicationFiled: July 25, 2022Publication date: March 30, 2023Inventors: Jee Heon Kim, Dong Gyun Woo, Chul Soon Kim, Hui Sung Jang, Sung Uk Park
-
Publication number: 20230037590Abstract: A method for controlling an LLC resonance converter controls a converter through the steps of detecting parameter values related to operation of the converter, determining a switching duty of the converter on the basis of the detected parameter values, and controlling the converter with the determined switching duty to improve nonlinearity of a gain curve of the converter, thereby reducing output current ripples and achieving low-gain output.Type: ApplicationFiled: July 19, 2022Publication date: February 9, 2023Inventors: Hui Sung Jang, Dong Gyun Woo, Chul Soon Kim, Jee Heon Kim, Sung Uk Park
-
Publication number: 20220209552Abstract: A device for supplying power from a vehicle battery to the outside is provided. The device includes an inverter circuit having a bridge circuit with multiple switching elements and that converts the received DC power into the AC power by switching the switching elements and that outputs the AC power. A controller controls an on/off state of each switching element through pulse width modulation. When an output AC output to the load has a value greater than a preset reference value or an input direct current input into the inverter has a value greater than a preset reference value, the controller changes a duty of each switching element to reduce an output AC voltage output from the inverter. When the reduced output AC voltage has a value equal to or less than a preset reference value, the controller stops a power conversion operation of the inverter.Type: ApplicationFiled: September 13, 2021Publication date: June 30, 2022Inventors: Sung Uk Park, Hyun Wook Seong, Dong Gyun Woo, Chul Soon Kim, Hui Sung Jang, Jee Heon Kim
-
Publication number: 20220209652Abstract: An apparatus for controlling a power factor correction circuit of a charger for charging a vehicle batter is configured to correct a power factor of an input AC voltage through switching of a switching element. The apparatus for controlling the power factor correction circuit includes: a phase angle detection unit configured to detect phase angle information of the input AC voltage; and a frequency determination unit configured to synchronize a period in which a preset frequency variation value varies, with a period of the input AC voltage by applying the phase angle information to the frequency variation value, and determine, as a switching frequency of the switching element, a value obtained by applying the synchronized frequency variation value to a preset fundamental frequency value.Type: ApplicationFiled: October 18, 2021Publication date: June 30, 2022Applicants: Hyundai Motor Company, Kia CorporationInventors: Jee Heon Kim, Hyun Wook Seong, Sung Uk Park, Chul Soon Kim, Hui Sung Jang, Dong Gyun Woo
-
Patent number: 11241936Abstract: The present invention relates to an air conditioner for a vehicle and a control method thereof, which can calculate the range of discharge temperature to the interior of the vehicle, set the upper limit of the discharge temperature, and control the degree of opening of a temp door such that the discharge temperature to the interior of the vehicle gets lower than the upper limit, thereby preventing air of discharge temperature above the upper limit from being discharged to the interior of the vehicle and preventing displeasure or personal injury that may be caused when air of high temperature is discharged.Type: GrantFiled: October 30, 2017Date of Patent: February 8, 2022Assignee: HANON SYSTEMSInventors: Se Won Min, Tae Eun Kim, Chang Hyun Baek, Sang Jun Yoo, Hong Rae Jung, Chul Soon Kim
-
Patent number: 10639966Abstract: An air conditioning system for motor vehicles includes a compressor, a condenser, a plurality of air conditioning units connected in parallel with each other with respect to the compressor and the condenser, and a flow rate control unit configured to, when a specific one of the air conditioning units is additionally turned on or is turned off, prevent occurrence of a sudden change in refrigerant amount in the remaining air conditioning units.Type: GrantFiled: March 26, 2018Date of Patent: May 5, 2020Assignee: HANON SYSTEMSInventors: Chang Hyun Baek, Chul Soon Kim, Tae Eun Kim, Se Won Min, Sang Jun Yoo, Hong Rae Jung, Seo Jun Yoon, Seung Ho Lee, Jae Min Lee, Young Chul Kim, In Hyeok Kim
-
Publication number: 20190001788Abstract: An air conditioner for a vehicle includes an air conditioning case having a first air passageway and a second air passageway partitioned by a separator therein; a PTC heater disposed in each of the first air passageway and the second air passageway to generate heat by electric energy; and a control unit for controlling operation of the PTC heater. The control unit individually controls discharge temperature of the first air passageway and discharge temperature of the second air passageway of the PTC heater, and if target discharge temperature of the first air passageway and target discharge temperature of the second air passageway are different from each other, the control unit calculates and outputs a compensation value for the PTC heater output of at least one of the first air passageway and the second air passageway. The PTC heater therefore has a reduced output when controlling for dual temperatures.Type: ApplicationFiled: June 27, 2018Publication date: January 3, 2019Inventors: Se Won MIN, Sang Jun YOO, Young Min KIM, Chul Soon KIM, Hong Rae JUNG, Chang Hyun BAEK, Dae Yeop JEONG
-
Publication number: 20180281564Abstract: An air conditioning system for motor vehicles includes a compressor, a condenser, a plurality of air conditioning units connected in parallel with each other with respect to the compressor and the condenser, and a flow rate control unit configured to, when a specific one of the air conditioning units is additionally turned on or is turned off, prevent occurrence of a sudden change in refrigerant amount in the remaining air conditioning units.Type: ApplicationFiled: March 26, 2018Publication date: October 4, 2018Inventors: Chang Hyun Baek, Chul Soon Kim, Tae Eun Kim, Se Won Min, Sang Jun Yoo, Hong Rae Jung, Seo Jun Yoon, Seung Ho Lee, Jae Min Lee, Young Chul Kim, In Hyeok Kim
-
Publication number: 20180117989Abstract: The present invention relates to an air conditioner for a vehicle and a control method thereof, which can calculate the range of discharge temperature to the interior of the vehicle, set the upper limit of the discharge temperature, and control the degree of opening of a temp door such that the discharge temperature to the interior of the vehicle gets lower than the upper limit, thereby preventing air of discharge temperature above the upper limit from being discharged to the interior of the vehicle and preventing displeasure or personal injury that may be caused when air of high temperature is discharged.Type: ApplicationFiled: October 30, 2017Publication date: May 3, 2018Inventors: Se Won MIN, Tae Eun KIM, Chang Hyun BAEK, Sang Jun YOO, Hong Rae JUNG, Chul Soon KIM