Patents by Inventor Woo Jin Chang
Woo Jin Chang 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).
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Patent number: 9897172Abstract: A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving torque of an engine, an output shaft outputting torque of the engine, a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, a first shaft selectively connectable to the input shaft, a second shaft, a third shaft selectively connectable to the input shaft, a fourth shaft, a fifth shaft, a sixth shaft directly connected to the output shaft, and a seventh shaft selectively connectable to the input shaft.Type: GrantFiled: September 14, 2016Date of Patent: February 20, 2018Assignee: Hyundai Motor CompanyInventors: Jae Chang Kook, Seong Wook Hwang, Woochurl Son, Wonmin Cho, Hyun Sik Kwon, Woo Jin Chang, Wookjin Jang, Seongwook Ji
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Patent number: 9897171Abstract: The present disclosure provides a planetary gear train of an automatic transmission for a vehicle to perform ten or more forward speeds and one or more reverse speed. The planetary gear train includes: an input shaft, an output shaft, three planetary gear sets respectively having three rotational elements, and seven control elements for selectively interconnecting the rotational elements and a transmission housing.Type: GrantFiled: September 6, 2016Date of Patent: February 20, 2018Assignee: HYUNDAI MOTOR COMPANYInventors: Seongwook Ji, Seong Wook Hwang, Woo Jin Chang, Wonmin Cho, Hyun Sik Kwon, Jae Chang Kook
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Patent number: 9897167Abstract: The present disclosure provides a planetary gear train of an automatic transmission for a vehicle. The planetary gear train may include: an input shaft receiving torque of an engine; an output shaft outputting changed torque; a first planetary gear set including first, second, and third rotation elements; a second planetary gear set including fourth, fifth, and sixth rotation elements; a third planetary gear set including seventh, eighth, and ninth rotation elements; a fourth planetary gear set including tenth, eleventh, and twelfth rotation elements.Type: GrantFiled: March 23, 2016Date of Patent: February 20, 2018Assignee: HYUNDAI MOTOR COMPANYInventors: Jong Soo Kim, Jinseok Kim, Jae Chang Kook, Dong Hwan Hwang, Seong Wook Hwang, Woo Jin Chang, Seongwook Ji, Chon Ok Kim, Wonmin Cho, Hyun Sik Kwon, Jong Sool Park, Kyeong Hun Lee, Tae Whan Kim
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Patent number: 9889840Abstract: A method for improving fuel-efficiency during a temporary stop may include dividing, by an engine control apparatus, a neutral control condition into a neutral control entry and a neutral control release during a D-stage temporary stop, determining, a neutral control entry D-stage target RPM at a time of the neutral control entry, and a neutral control release D-stage target RPM at a time of the neutral control release, and RPM shifting the neutral control entry D-stage target RPM to a speed gradient conforming to a transmission clutch release time of a transmission control apparatus at a time of a neutral control after the neutral control entry and RPM shifting the neutral control release D-stage target RPM to a speed gradient conforming to a clutch coupling time of a transmission by the transmission control apparatus at a time of a neutral control after the neutral control release.Type: GrantFiled: May 22, 2015Date of Patent: February 13, 2018Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Dong-Hoon Jeong, Hyun-Seung Suh, Myong-Chan Kim, Woo-Jin Chang, Moo-Suk Kim, Kyoo-Ho Lee, Hyun-Ku Lee, Sang-Bum Baek
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Publication number: 20180023701Abstract: Disclosed is a hydraulic pressure supply system of a dual clutch transmission for a vehicle in which by independently configuring a low pressure supply route and a high pressure supply route, the hydraulic pressure supply system can enable a low hydraulic pressure that is generated in a hydraulic pump for a low pressure to be supplied to a gear lubrication device and a clutch cooling/lubrication device and enable a low hydraulic pressure that is generated in a hydraulic pump for a high pressure to be supplied to a gear control device and a clutch control device.Type: ApplicationFiled: December 13, 2016Publication date: January 25, 2018Applicant: Hyundai Motor CompanyInventors: Yong Uk SHIN, Hyun Chul KIM, Woochurl SON, Chang Yeon CHO, Woo Jin CHANG, Wonmin CHO, Hyu Tae SHIM
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Publication number: 20180017136Abstract: A planetary gear train of an automatic transmission may include an input shaft receiving torque of an engine; an output shaft outputting changed torque; a first planetary gear set including first, second, and third rotation elements; a second planetary gear set including fourth, fifth, and sixth rotation elements; a third planetary gear set including seventh, eighth, and ninth rotation elements; a fourth planetary gear set including tenth, eleventh, and twelfth rotation elements; a first shaft connecting the first rotation element and the fourth rotation element; a second shaft connected with the second rotation element and connected with the input shaft; a third shaft connecting the third rotation element and the fifth rotation element; a fourth shaft connecting the sixth rotation element and the ninth rotation element; a fifth shaft connecting the eighth rotation element and the twelfth rotation element; and a sixth shaft connected with the tenth rotation element.Type: ApplicationFiled: November 30, 2016Publication date: January 18, 2018Applicant: Hyundai Motor CompanyInventors: Jin Ho KIM, Jinseok KIM, Jae Chang KOOK, Dong Hwan HWANG, Seong Wook HWANG, Woo Jin CHANG, Tae Whan KIM, Seongwook JI, Chon Ok KIM, Wonmin CHO, Hyun Sik KWON, Jong Sool PARK, Kyeong Hun LEE, Jong Soo KIM
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Patent number: 9869374Abstract: The present disclosure provides a planetary gear train of an automatic transmission for a vehicle. The planetary gear train may include: an input shaft receiving torque of an engine; an output shaft outputting changed torque; a first planetary gear set including first, second, and third rotation elements; a second planetary gear set including fourth, fifth, and sixth rotation elements; a third planetary gear set including seventh, eighth, and ninth rotation elements; a fourth planetary gear set including tenth, eleventh, and twelfth rotation elements.Type: GrantFiled: March 23, 2016Date of Patent: January 16, 2018Assignee: HYUNDAI MOTOR COMPANYInventors: Jong Soo Kim, Jinseok Kim, Jae Chang Kook, Dong Hwan Hwang, Seong Wook Hwang, Woo Jin Chang, Seongwook Ji, Chon Ok Kim, Wonmin Cho, Hyun Sik Kwon, Jong Sool Park, Kyeong Hun Lee, Tae Whan Kim
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Patent number: 9863504Abstract: The present disclosure provides a planetary gear train of an automatic transmission for a vehicle. The planetary gear train may include: an input shaft receiving torque of an engine; an output shaft outputting changed torque; a first planetary gear set including first, second, and third rotation elements; a second planetary gear set including fourth, fifth, and sixth rotation elements; a third planetary gear set including seventh, eighth, and ninth rotation elements; a fourth planetary gear set including tenth, eleventh, and twelfth rotation elements.Type: GrantFiled: March 23, 2016Date of Patent: January 9, 2018Assignee: HYUNDAI MOTOR COMPANYInventors: Jong Soo Kim, Jinseok Kim, Jae Chang Kook, Dong Hwan Hwang, Seong Wook Hwang, Woo Jin Chang, Seongwook Ji, Chon Ok Kim, Wonmin Cho, Hyun Sik Kwon, Jong Sool Park, Kyeong Hun Lee, Tae Whan Kim
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Patent number: 9863505Abstract: A planetary gear train of an automatic transmission for a vehicle having an input shaft for receiving torque of an engine; an output shaft for outputting torque; a first planetary gear set including first, second, and third rotation elements; a second planetary gear set including fourth, fifth, and sixth rotation elements; a third planetary gear set including seventh, eighth, and ninth rotation elements; and a fourth planetary gear set including tenth, eleventh, and twelfth rotation elements, improves power delivery performance and fuel economy by achieving at least ten forward speed stages.Type: GrantFiled: May 18, 2016Date of Patent: January 9, 2018Assignee: HYUNDAI MOTOR COMPANYInventors: Jong Soo Kim, Jinseok Kim, Jae Chang Kook, Dong Hwan Hwang, Jin Ho Kim, Seong Wook Hwang, Woo Jin Chang, Kyeong Hun Lee, Seongwook Ji, Chon Ok Kim, Wonmin Cho, Hyun Sik Kwon, Jong Sool Park, Tae Whan Kim
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Publication number: 20170363572Abstract: A device for measuring pH levels and contaminant concentration includes an electrode assembly that is electrically coupled to a control unit. The electrode assembly includes a FLUID first contact electrically coupled to a reference electrode, a second contact electrically coupled to a working electrode, and a third contact electrically coupled to a counter electrode. The working electrode may be modified to include a cysteine functionalized graphene oxide with polypyrrole nanocomposite. In operation, the control unit may apply a complex signal to the working electrode via the second contact in order to adhere and subsequently strip contaminant ions from the fluid sample to the working electrode. During this process, a current may be measured across the reference electrode and the counter electrode to measure contaminant ion concentration. The pH of the fluid sample may also be determined by a current measured across the reference electrode and the counter electrode.Type: ApplicationFiled: December 3, 2015Publication date: December 21, 2017Inventors: Sundaram Gunasekaran, Woo-Jin Chang, Jiang Yang, Rajesh Seenivasan
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Patent number: 9845845Abstract: A planetary gear train of an automatic transmission for vehicle may include an input shaft receiving power of an engine, an output shaft outputting shifted power of the engine, a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, a first shaft directly connected with the input shaft, a second shaft, a third shaft, a fourth shaft selectively connectable to the third shaft, a fifth shaft selectively connectable with the third shaft, a sixth shaft, a seventh shaft directly connected with a transmission housing, an eighth shaft selectively connectable with each of the fifth shaft and the sixth shaft, and a ninth shaft selectively connectable with the fifth shaft, and directly connected with the output shaft.Type: GrantFiled: September 14, 2016Date of Patent: December 19, 2017Assignee: Hyundai Motor CompanyInventors: Seongwook Ji, Seong Wook Hwang, Woo Jin Chang, Wonmin Cho, Hyun Sik Kwon, Jae Chang Kook
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Patent number: 9845847Abstract: A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving torque of an engine, an output shaft outputting torque of the engine, a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, a first shaft, a second shaft, a third shaft selectively connectable to the input shaft, and selectively connectable to a transmission housing, a fourth shaft selectively connectable to the input shaft, a fifth shaft directly connected to the output shaft, a sixth shaft, and a seventh shaft selectively connectable to the input shaft.Type: GrantFiled: October 26, 2016Date of Patent: December 19, 2017Assignee: Hyundai Motor CompanyInventors: Jae Chang Kook, Seongwook Ji, Woochurl Son, Hyun Sik Kwon, Woo Jin Chang, Seong Wook Hwang, Wonmin Cho
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Patent number: 9841084Abstract: Eleven or more forward speeds and at least one reverse speed are achieved by a planetary gear train of an automatic transmission for a vehicle including an input shaft, an output shaft, four planetary gear sets respectively having three rotation elements and six control elements for selectively interconnecting the rotation elements and a transmission housing.Type: GrantFiled: June 15, 2016Date of Patent: December 12, 2017Assignee: Hyundai Motor CompanyInventors: Seongwook Ji, Seong Wook Hwang, Woochurl Son, Hyun Sik Kwon, Woo Jin Chang, Jae Chang Kook, Wonmin Cho
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Patent number: 9835237Abstract: A power transmission apparatus for a vehicle includes a first input shaft directly connected to an engine, a second input shaft enclosing the first input shaft and rotating independently from the first input shaft and selectively receiving torque of the engine through a first clutch, a third input shaft enclosing the second input shaft and rotating independently from with the second input shaft and selectively receiving the torque of the engine through a second clutch, an intermediate shaft disposed in parallel with the first, second and third input shafts, a transfer gear fixedly disposed on the intermediate shaft and outputting torque of the intermediate shaft, a first shifting member, a second shifting member, and a third shifting member for changing the torque of the engine.Type: GrantFiled: August 2, 2016Date of Patent: December 5, 2017Assignee: HYUNDAI MOTOR COMPANYInventors: Seong Wook Hwang, Yong Uk Shin, Seongwook Ji, Woochurl Son, Wonmin Cho, Hyun Sik Kwon, Ki Been Lim, Woo Jin Chang, Jae Chang Kook, Ki Tae Kim
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Patent number: 9829077Abstract: A planetary gear train of an automatic transmission for a vehicle having an input shaft for receiving torque of an engine; an output shaft for outputting torque; a first planetary gear set including first, second, and third rotation elements; a second planetary gear set including fourth, fifth, and sixth rotation elements; a third planetary gear set including seventh, eighth, and ninth rotation elements; and a fourth planetary gear set including tenth, eleventh, and twelfth rotation elements, improves power delivery performance and fuel economy by achieving at least ten forward speed stages.Type: GrantFiled: May 18, 2016Date of Patent: November 28, 2017Assignee: Hyundai Motor CompanyInventors: Jong Soo Kim, Jinseok Kim, Jae Chang Kook, Dong Hwan Hwang, Jin Ho Kim, Seong Wook Hwang, Woo Jin Chang, Kyeong Hun Lee, Seongwook Ji, Chon Ok Kim, Wonmin Cho, Hyun Sik Kwon, Jong Sool Park, Tae Whan Kim
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Patent number: 9829078Abstract: A planetary gear train of an automatic transmission for a vehicle may an input shaft receiving torque of an engine, an output shaft outputting torque of the input shaft, a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, a first shaft, a second shaft directly connected to the input shaft, a third shaft directly connected to the output shaft, a fourth shaft, a fifth shaft, a sixth shaft selectively connectable to the first shaft, a seventh shaft selectively connectable to at least one of the first shaft and the fourth shaft, an eighth shaft selectively connectable to at least one of the fifth shaft and the sixth shaft, and a ninth shaft directly connected to a transmission housing.Type: GrantFiled: September 16, 2016Date of Patent: November 28, 2017Assignee: Hyundai Motor CompanyInventors: Seongwook Ji, Seong Wook Hwang, Woo Jin Chang, Wonmin Cho, Hyun Sik Kwon, Jae Chang Kook
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Patent number: 9822849Abstract: A planetary gear train of an automatic transmission for a vehicle may include: an input shaft receiving torque of an engine; an output shaft outputting changed torque; a first planetary gear set including first, second, and third rotation elements; a second planetary gear set including fourth, fifth, and sixth rotation elements; a third planetary gear set including seventh, eighth, and ninth rotation elements; a fourth planetary gear set including tenth, eleventh, and twelfth rotation elements. The planetary gear train improves power delivery performance and fuel economy by achieving at least ten forward speed stages and one reverse speed stage, and widens gear ratio span and secures linearity of step ratios.Type: GrantFiled: March 23, 2016Date of Patent: November 21, 2017Assignee: HYUNDAI MOTOR COMPANYInventors: Jong Soo Kim, Jinseok Kim, Jae Chang Kook, Dong Hwan Hwang, Seong Wook Hwang, Woo Jin Chang, Seongwook Ji, Chon Ok Kim, Wonmin Cho, Hyun Sik Kwon, Jong Sool Park, Kyeong Hun Lee, Tae Whan Kim
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Patent number: 9822850Abstract: A planetary gear train of an automatic transmission for a vehicle may include: an input shaft receiving torque of an engine; an output shaft outputting changed torque; a first planetary gear set including first, second, and third rotation elements; a second planetary gear set including fourth, fifth, and sixth rotation elements; a third planetary gear set including seventh, eighth, and ninth rotation elements; a fourth planetary gear set including tenth, eleventh, and twelfth rotation elements. The planetary gear train improves power delivery performance and fuel economy by achieving at least ten forward speed stages and one reverse speed stage, and widens gear ratio span and secures linearity of step ratios.Type: GrantFiled: March 23, 2016Date of Patent: November 21, 2017Assignee: HYUNDAI MOTOR COMPANYInventors: Jong Soo Kim, Jinseok Kim, Jae Chang Kook, Dong Hwan Hwang, Seong Wook Hwang, Woo Jin Chang, Seongwook Ji, Chon Ok Kim, Wonmin Cho, Hyun Sik Kwon, Jong Sool Park, Kyeong Hun Lee, Tae Whan Kim
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Publication number: 20170314647Abstract: A planetary gear train of an automatic transmission for a vehicle having an input shaft for receiving torque of an engine; an output shaft for outputting torque; a first planetary gear set including first, second, and third rotation elements; a second planetary gear set including fourth, fifth, and sixth rotation elements; a third planetary gear set including seventh, eighth, and ninth rotation elements; and a fourth planetary gear set including tenth, eleventh, and twelfth rotation elements, improves power delivery performance and fuel economy by achieving at least ten forward speed stages.Type: ApplicationFiled: May 18, 2016Publication date: November 2, 2017Applicant: Hyundai Motor CompanyInventors: Jong Soo KIM, Jinseok KIM, Jae Chang KOOK, Dong Hwan HWANG, Jin Ho KIM, Seong Wook HWANG, Woo Jin CHANG, Kyeong Hun LEE, Seongwook JI, Chon Ok KIM, Wonmin CHO, Hyun Sik KWON, Jong Sool PARK, Tae Whan KIM
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Patent number: 9791024Abstract: A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving torque of an engine, an output shaft outputting changed torque of the engine, a first planetary gear set including first, second, and third rotation elements, a second planetary gear set including fourth, fifth, and sixth rotation elements, a third planetary gear set including seventh, eighth, and ninth rotation elements, a fourth planetary gear set including tenth, eleventh, and twelfth rotation elements, and six friction elements selectively connecting the rotation elements, or selectively connecting at least one of the rotation elements and a transmission housing.Type: GrantFiled: June 29, 2016Date of Patent: October 17, 2017Assignee: Hyundai Motor CompanyInventors: Jae Chang Kook, Seong Wook Hwang, Woo Jin Chang, Wonmin Cho, Hyun Sik Kwon, Wookjin Jang, Seongwook Ji