Patents by Inventor Jung Mo YU
Jung Mo YU 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: 11784605Abstract: A motor driving apparatus that drives a motor including a plurality of windings respectively corresponding to a plurality of phases, may include a first inverter including a plurality of first switching elements, and connected to a first end of each of the windings; a second inverter including a plurality of second switching elements, and connected to a second end of each of the windings; and a controller including a current controller to produce, based on a predetermined current command of the motor, a voltage command for determining a switching duty of the first switching elements and the second switching elements, wherein the current controller is configured to produce a zero-phase component voltage command among the voltage commands by applying 3rd harmonic feedforward compensation.Type: GrantFiled: August 17, 2022Date of Patent: October 10, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Yong Jae Lee, Jang Yoon Jeong, Jae Ho Hwang, Jung Mo Yu
-
Patent number: 11757298Abstract: A charging system and method using a motor driving system which can charge a vehicle battery using charging equipment providing various voltages using a motor driving system provided in a vehicle and improve charging efficiency by selectively determining a charging mode in response to an actual voltage state of the vehicle battery.Type: GrantFiled: November 20, 2020Date of Patent: September 12, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Su Hyun Bae, Jung Mo Yu, Jae Ho Hwang, Joo Young Park, Yong Jae Lee
-
Publication number: 20230253905Abstract: A motor driving apparatus driving a motor including a plurality of windings corresponding to each of phases, includes a mode change switch and a plurality of inverters that operate the motor in a closed end winding mode or an open end winding mode; and a controller configured for controlling the mode change switch and the plurality of inverters according to a first mode determination result based on a reverse magnetic flux and a second mode determination result according to an output power limit for each mode.Type: ApplicationFiled: August 16, 2022Publication date: August 10, 2023Applicants: Hyundai Motor Company, Kia CorporationInventors: Jung Mo YU, Yong Jae Lee, Hyun Jae Lim, Young Ho Chae, Young Kwan Ko, Jang Yoon Jeong
-
Publication number: 20230223883Abstract: A motor driving apparatus that drives a motor including a plurality of windings respectively corresponding to a plurality of phases, may include a first inverter including a plurality of first switching elements, and connected to a first end of each of the windings; a second inverter including a plurality of second switching elements, and connected to a second end of each of the windings; and a controller including a current controller to produce, based on a predetermined current command of the motor, a voltage command for determining a switching duty of the first switching elements and the second switching elements, wherein the current controller is configured to produce a zero-phase component voltage command among the voltage commands by applying 3rd harmonic feedforward compensation.Type: ApplicationFiled: August 17, 2022Publication date: July 13, 2023Applicants: Hyundai Motor Company, Kia CorporationInventors: Yong Jae LEE, Jang Yoon JEONG, Jae Ho HWANG, Jung Mo YU
-
Publication number: 20230049787Abstract: A motor driving apparatus of driving a motor including a plurality of windings respectively corresponding to a plurality of phases is disclosed. The motor driving apparatus includes a first inverter including a plurality of first switching elements and connected to a first end of each of the windings, a second inverter including a plurality of second switching elements and connected to a second end of each of the windings, and a controller electrically connected to the first switching elements and the second switching elements and configured to generate limited pole voltage commands for space vector pulse width modulation based on preset voltage commands of the motor and to distribute the limited pole voltage commands to generate first pole voltage commands for switching of the first switching elements and second pole voltage commands for switching of the second switching elements.Type: ApplicationFiled: June 14, 2022Publication date: February 16, 2023Applicants: Hyundai Motor Company, Kia CorporationInventors: Yong Jae LEE, Jung Mo YU, Jang Yoon JEONG
-
Patent number: 11563395Abstract: A battery-heating system and method using a motor-driving system is provided. The battery-heating system includes an inverter having legs respectively including a pair of switching elements connected in series between the ends of a battery and corresponding to a plurality of phases. A motor of the system includes coils each having one end connected to a connection end between a pair of switching elements of the legs, other ends of the plurality of coils being connected together. A controller determines one of the plurality of phases as a reference phase, and alternately controls the on-off states of the switching elements so that the on-off state of the switching element included in the leg corresponding to the reference phase and the switching element included in the other leg are mutually complementary, thereby generating AC current to be injected into the battery.Type: GrantFiled: November 17, 2020Date of Patent: January 24, 2023Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Yong Jae Lee, Jung Hwi Kim, Jung Mo Yu, Jae Ho Hwang, Joo Young Park, Jae Hyeon Park
-
Patent number: 11563396Abstract: A battery heating system and method using a motor driving system are provided. A temperature of a battery is increased by injecting an alternating current into the battery so that charging and discharging of the battery is repeated using the motor driving system including an inverter and a motor provided in a vehicle.Type: GrantFiled: November 18, 2020Date of Patent: January 24, 2023Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Yong Jae Lee, Jung Hwi Kim, Jung Mo Yu, Jae Ho Hwang, Joo Young Park, Jae Hyeon Park
-
Patent number: 11552588Abstract: A system for increasing a temperature of a battery includes: an inverter comprising a plurality of legs corresponding to a plurality of phases, respectively, wherein each of the legs comprises a pair of switching elements connected in series to both terminals of the battery, respectively; a motor comprising a plurality of coils corresponding to the plurality of phases, respectively, wherein each of the plurality of coils has one end connected to a connection node between the pair of switching elements included in each leg of the inverter, each leg corresponding to each of the plurality of coils, and other ends of plurality of coils are connected to each other; and a controller generating a battery application AC current applied to the battery by controlling on and off states of the pair of switching elements included in the legs of the inverter.Type: GrantFiled: September 15, 2021Date of Patent: January 10, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Yong Jae Lee, Jung Mo Yu, Su Hyun Bae, Jae Ho Hwang
-
Patent number: 11437909Abstract: A DC-to-DC converter includes a first capacitor, first to fourth switches connected in series between first and second electrodes of the first capacitor, a second capacitor connected to a connection node of the first switch and the second switch and a connection node of the third switch and the fourth switch, an inductor connected to a connection node of the second switch and the third switch, and a controller that performs PWM control. In a case where a failure occurs in the second capacitor, the DC-to-DC converter performs PWM control such that the first switch and the second switch enter the same state and the third switch and the fourth switch enter the same state on the basis of a result of comparison between a first detection voltage that is a measured output voltage and a target output voltage of the DC-to-DC converter.Type: GrantFiled: September 29, 2020Date of Patent: September 6, 2022Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Jung Hwi Kim, Jung Mo Yu, Yong Jae Lee, Jae Ho Hwang, Joo Young Park, Jae Hyeon Park
-
Publication number: 20220200504Abstract: A system for increasing a temperature of a battery includes: an inverter comprising a plurality of legs corresponding to a plurality of phases, respectively, wherein each of the legs comprises a pair of switching elements connected in series to both terminals of the battery, respectively; a motor comprising a plurality of coils corresponding to the plurality of phases, respectively, wherein each of the plurality of coils has one end connected to a connection node between the pair of switching elements included in each leg of the inverter, each leg corresponding to each of the plurality of coils, and other ends of plurality of coils are connected to each other; and a controller generating a battery application AC current applied to the battery by controlling on and off states of the pair of switching elements included in the legs of the inverter.Type: ApplicationFiled: September 15, 2021Publication date: June 23, 2022Applicants: Hyundai Motor Company, Kia CorporationInventors: Yong Jae LEE, Jung Mo YU, Su Hyun BAE, Jae Ho HWANG
-
Patent number: 11356021Abstract: A DC-to-DC converter includes a first capacitor, first, second, third, and fourth switches connected in series between first and second electrodes of the first capacitor, a second capacitor connected to a connection node of the first switch and the second switch and a connection node of the third switch and the fourth switch, an inductor connected to a connection node of the second switch and the third switch, and a controller that controls an on/off state of each of the first to fourth switches on the basis of a value obtained by applying a reciprocal of a detection current that is a measured current flowing through the inductor to a difference between a first detection voltage and a first voltage instruction value and a difference between a second detection voltage and a second voltage instruction value.Type: GrantFiled: September 24, 2020Date of Patent: June 7, 2022Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Jung Hwi Kim, Jung Mo Yu, Yong Jae Lee, Jae Ho Hwang, Joo Young Park, Jae Hyeon Park
-
Patent number: 11292362Abstract: A system for increasing a temperature of a battery includes an inverter including a plurality of legs each including one pair of switching devices connected in series to each other between opposite ends of the battery and corresponding to a plurality of phases, respectively, a motor including a plurality of coils corresponding to the plurality of phases, respectively, where one end of each of the plurality of coils is connected to a connection node between one pair of switching devices included in a corresponding leg and other ends of the coils are connected to each other, and a controller configured to select two phases of the plurality of phases, and to alternately control an on/off state of switching devices included in two legs in the inverter, corresponding to the two selected phases, at a preset switching frequency to generate alternating current (AC) supplied to the battery.Type: GrantFiled: January 28, 2020Date of Patent: April 5, 2022Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Yong Jae Lee, Su Hyun Bae, Jung Mo Yu, Jae Ho Hwang, Joo Young Park
-
Publication number: 20220069755Abstract: A battery-heating system and method using a motor-driving system is provided. The battery-heating system includes an inverter having legs respectively including a pair of switching elements connected in series between the ends of a battery and corresponding to a plurality of phases. A motor of the system includes coils each having one end connected to a connection end between a pair of switching elements of the legs, other ends of the plurality of coils being connected together. A controller determines one of the plurality of phases as a reference phase, and alternately controls the on-off states of the switching elements so that the on-off state of the switching element included in the leg corresponding to the reference phase and the switching element included in the other leg are mutually complementary, thereby generating AC current to be injected into the battery.Type: ApplicationFiled: November 17, 2020Publication date: March 3, 2022Inventors: Yong Jae Lee, Jung Hwi Kim, Jung Mo Yu, Jae Ho Hwang, Joo Young Park, Jae Hyeon Park
-
Publication number: 20220014137Abstract: A battery heating system and method using a motor driving system are provided. A temperature of a battery is increased by injecting an alternating current into the battery so that charging and discharging of the battery is repeated using the motor driving system including an inverter and a motor provided in a vehicle.Type: ApplicationFiled: November 18, 2020Publication date: January 13, 2022Inventors: Yong Jae Lee, Jung Hwi Kim, Jung Mo Yu, Jae Ho Hwang, Joo Young Park, Jae Hyeon Park
-
Patent number: 11183925Abstract: A flying DC-to-DC converter has a capacitor protection function of preventing a flying capacitor from overheating. The flying DC-to-DC converter estimates the temperature of a capacitor on the basis of a switching duty and an inductor current determined according to a result of comparison between an output voltage and a voltage instruction value, and determines whether to perform de-rating.Type: GrantFiled: September 29, 2020Date of Patent: November 23, 2021Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Jung Hwi Kim, Jung Mo Yu, Yong Jae Lee, Jae Ho Hwang, Joo Young Park, Jae Hyeon Park
-
Publication number: 20210336472Abstract: A charging system and method using a motor driving system which can charge a vehicle battery using charging equipment providing various voltages using a motor driving system provided in a vehicle and improve charging efficiency by selectively determining a charging mode in response to an actual voltage state of the vehicle battery.Type: ApplicationFiled: November 20, 2020Publication date: October 28, 2021Inventors: Su Hyun BAE, Jung Mo YU, Jae Ho HWANG, Joo Young PARK, Yong Jae LEE
-
Publication number: 20210313877Abstract: A flying DC-to-DC converter has a capacitor protection function of preventing a flying capacitor from overheating. The flying DC-to-DC converter estimates the temperature of a capacitor on the basis of a switching duty and an inductor current determined according to a result of comparison between an output voltage and a voltage instruction value, and determines whether to perform de-rating.Type: ApplicationFiled: September 29, 2020Publication date: October 7, 2021Inventors: Jung Hwi KIM, Jung Mo YU, Yong Jae LEE, Jae Ho HWANG, Joo Young PARK, Jae Hyeon PARK
-
Publication number: 20210313892Abstract: A DC-to-DC converter includes a first capacitor, first to fourth switches connected in series between first and second electrodes of the first capacitor, a second capacitor connected to a connection node of the first switch and the second switch and a connection node of the third switch and the fourth switch, an inductor connected to a connection node of the second switch and the third switch, and a controller that performs PWM control. In a case where a failure occurs in the second capacitor, the DC-to-DC converter performs PWM control such that the first switch and the second switch enter the same state and the third switch and the fourth switch enter the same state on the basis of a result of comparison between a first detection voltage that is a measured output voltage and a target output voltage of the DC-to-DC converter.Type: ApplicationFiled: September 29, 2020Publication date: October 7, 2021Inventors: Jung Hwi KIM, Jung Mo YU, Yong Jae LEE, Jae Ho HWANG, Joo Young PARK, Jae Hyeon PARK
-
Publication number: 20210313886Abstract: A DC-to-DC converter includes a first capacitor, first, second, third, and fourth switches connected in series between first and second electrodes of the first capacitor, a second capacitor connected to a connection node of the first switch and the second switch and a connection node of the third switch and the fourth switch, an inductor connected to a connection node of the second switch and the third switch, and a controller that controls an on/off state of each of the first to fourth switches on the basis of a value obtained by applying a reciprocal of a detection current that is a measured current flowing through the inductor to a difference between a first detection voltage and a first voltage instruction value and a difference between a second detection voltage and a second voltage instruction value.Type: ApplicationFiled: September 24, 2020Publication date: October 7, 2021Inventors: Jung Hwi Kim, Jung Mo Yu, Yong Jae Lee, Jae Ho Hwang, Joo Young Park, Jae Hyeon Park
-
Publication number: 20210061128Abstract: A system for increasing a temperature of a battery includes an inverter including a plurality of legs each including one pair of switching devices connected in series to each other between opposite ends of the battery and corresponding to a plurality of phases, respectively, a motor including a plurality of coils corresponding to the plurality of phases, respectively, where one end of each of the plurality of coils is connected to a connection node between one pair of switching devices included in a corresponding leg and other ends of the coils are connected to each other, and a controller configured to select two phases of the plurality of phases, and to alternately control an on/off state of switching devices included in two legs in the inverter, corresponding to the two selected phases, at a preset switching frequency to generate alternating current (AC) supplied to the battery.Type: ApplicationFiled: January 28, 2020Publication date: March 4, 2021Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Yong Jae LEE, Su Hyun BAE, Jung Mo YU, Jae Ho HWANG, Joo Young PARK