Patents by Inventor BYUNG WOON JANG
BYUNG WOON JANG 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: 9616760Abstract: An inverter-charger integrated device for an electric vehicle is provided. The inverter-charger integrated device for the electric vehicle includes a motor; a power input unit; a rectifying unit; an inverter; and a control unit, wherein the inverter comprises a first group of switches including first and second switches, a second group of switches including third and fourth switches, and a third group of switches including fifth and sixth switches, the rectifying unit is directly connected to the first of the first to third groups of switches, and phases of the motor are respectively connected to the first to third group of switches.Type: GrantFiled: September 5, 2014Date of Patent: April 11, 2017Assignee: LSIS CO., LTD.Inventors: Jae Hoon Jang, Byung Woon Jang, Joong Ki Jung, Chun Suk Yang
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Patent number: 9496804Abstract: Disclosed is an inverter-charger combined device for electric vehicles configured to drive a 3-phase motor by charging a high voltage battery in case of charging mode, and switching a power of the high voltage battery in case of operation mode, the device including a first power supply unit for supplying a power to drive a switching unit of the rectifier, and a second power supply unit for supplying a power to drive a switching unit of the inverter, where the first power supply unit and the second power supply unit are configured to independently supply a power.Type: GrantFiled: May 14, 2013Date of Patent: November 15, 2016Assignee: LSIS CO., LTD.Inventors: Byung Woon Jang, Chun Suk Yang
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Patent number: 9413280Abstract: An inverter is provided. The inverter includes a current providing unit providing a first axis current and a second axis current to an induction motor; a revolutions per minute (RPM) measuring unit measuring the RPM of the induction motor; and a control unit changing the second axis current according to the measured RPM.Type: GrantFiled: March 25, 2014Date of Patent: August 9, 2016Assignee: LSIS CO., LTD.Inventors: Byung Woon Jang, Chun Suk Yang, Jae Hoon Jang, Joong Ki Jung, Sun Woo Lee
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Patent number: 9211884Abstract: A battery information display apparatus is provided. The battery information display apparatus includes a data storage unit storing battery capacity information according to temperature and current of a battery of an electric vehicle, an integrated power control unit providing power for charging the battery and driving a motor, a sensor measuring the temperature and current of the battery, and a display unit displaying a battery remnant. The integrated power control unit calculates the battery remnant from the battery temperature and current measured by the sensor on the basis of the battery capacity information according to the battery temperature and current stored in the data storage unit and provides the calculated battery remnant to the display unit.Type: GrantFiled: July 9, 2014Date of Patent: December 15, 2015Assignee: LSIS Co., Ltd.Inventors: Byung Woon Jang, Hong Tae Park, Jae Hoon Jang, Yong Jin Kang
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Patent number: 8981730Abstract: Provided are a switching device for an electric vehicle and a method of controlling the switching device. The switching device includes a switch, a signal selection part, an inverter, and a controller. The switch generates a first or second switching signal according to an operation mode. The signal selection part receives the first or second switching signal, and selects the first or second switching signal according to the operation mode to output the selected switching signal. The inverter performs a direct current/alternating current conversion process on power according to the switching signal output from the signal selection part, and outputs the power. The controller determines the operation mode, and generates a control signal according to the operation mode such that the signal selection part selects the first or second switching signal.Type: GrantFiled: June 19, 2012Date of Patent: March 17, 2015Assignee: LSIS Co., Ltd.Inventors: Chun Suk Yang, Byung Woon Jang
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Publication number: 20150073633Abstract: A battery information display apparatus is provided. The battery information display apparatus includes a data storage unit storing battery capacity information according to temperature and current of a battery of an electric vehicle, an integrated power control unit providing power for charging the battery and driving a motor, a sensor measuring the temperature and current of the battery, and a display unit displaying a battery remnant. The integrated power control unit calculates the battery remnant from the battery temperature and current measured by the sensor on the basis of the battery capacity information according to the battery temperature and current stored in the data storage unit and provides the calculated battery remnant to the display unit.Type: ApplicationFiled: July 9, 2014Publication date: March 12, 2015Applicant: LSIS CO., LTD.Inventors: Byung Woon JANG, Hong Tae PARK, Jae Hoon JANG, Yong Jin KANG
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Publication number: 20150069936Abstract: An inverter-charger integrated device for an electric vehicle is provided. The inverter-charger integrated device for the electric vehicle includes a motor; a power input unit; a rectifying unit; an inverter; and a control unit, wherein the inverter comprises a first group of switches including first and second switches, a second group of switches including third and fourth switches, and a third group of switches including fifth and sixth switches, the rectifying unit is directly connected to the first of the first to third groups of switches, and phases of the motor are respectively connected to the first to third group of switches.Type: ApplicationFiled: September 5, 2014Publication date: March 12, 2015Applicant: LSIS CO., LTD.Inventors: Jae Hoon JANG, Byung Woon JANG, Joong Ki JUNG, Chun Suk YANG
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Publication number: 20150069834Abstract: An operating method of an inverter-charger integration device for an electric vehicle is disclosed. In the operating method, whether a charge switch and a controller area network (CAN) communication module are used is confirmed. When both the charge switch and the CAN communication module are in use, an operation mode of an inverter is determined by using a first table. When only the charge switch is in use, the operation mode of the inverter is determined by using a second table. When only the CAN communication module is in use, the operation mode of the inverter is determined by using a third table. When both the charge switch and the CAN communication module are not in use, the operation mode of the inverter is determined by using a fourth table.Type: ApplicationFiled: September 4, 2014Publication date: March 12, 2015Applicant: LSIS CO., LTD.Inventors: Jae Hoon JANG, Byung Woon JANG, Joong Ki JUNG
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Publication number: 20140340019Abstract: An inverter is provided. The inverter includes a current providing unit providing a first axis current and a second axis current to an induction motor; a revolutions per minute (RPM) measuring unit measuring the RPM of the induction motor; and a control unit changing the second axis current according to the measured RPM.Type: ApplicationFiled: March 25, 2014Publication date: November 20, 2014Applicant: LSIS CO., LTD.Inventors: BYUNG WOON JANG, CHUN SUK YANG, JAE HOON JANG, JOONG KI JUNG, SUN WOO LEE
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Patent number: 8736203Abstract: An inverter/charger integrated device is provided. The inverter/charger integrated device includes: a three-phase motor; a rectifying unit configured to rectify AC power for charging a battery and output the rectified AC power to a neutral point of the three-phase motor; a rectifier/inverter integrated unit configured to be connected to the rectifying unit and charge the battery; and a control unit configured to control the charging of the battery and an operation of the three-phase motor.Type: GrantFiled: March 16, 2012Date of Patent: May 27, 2014Assignee: LSIS Co., Ltd.Inventors: Jae Hoon Jang, Byung Woon Jang
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Publication number: 20130307333Abstract: Disclosed is an inverter-charger combined device for electric vehicles configured to drive a 3-phase motor by charging a high voltage battery in case of charging mode, and switching a power of the high voltage battery in case of operation mode, the device including a first power supply unit for supplying a power to drive a switching unit of the rectifier, and a second power supply unit for supplying a power to drive a switching unit of the inverter, where the first power supply unit and the second power supply unit are configured to independently supply a power.Type: ApplicationFiled: May 14, 2013Publication date: November 21, 2013Applicant: LSIS CO., LTD.Inventors: Byung Woon JANG, Chun Suk YANG
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Publication number: 20120326674Abstract: Provided are a switching device for an electric vehicle and a method of controlling the switching device. The switching device includes a switch, a signal selection part, an inverter, and a controller. The switch generates a first or second switching signal according to an operation mode. The signal selection part receives the first or second switching signal, and selects the first or second switching signal according to the operation mode to output the selected switching signal. The inverter performs a direct current/alternating current conversion process on power according to the switching signal output from the signal selection part, and outputs the power. The controller determines the operation mode, and generates a control signal according to the operation mode such that the signal selection part selects the first or second switching signal.Type: ApplicationFiled: June 19, 2012Publication date: December 27, 2012Applicant: LSIS CO., LTD.Inventors: Chun Suk YANG, Byung Woon JANG
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Publication number: 20120235605Abstract: An inverter/charger integrated device is provided. The inverter/charger integrated device includes: a three-phase motor; a rectifying unit configured to rectify AC power for charging a battery and output the rectified AC power to a neutral point of the three-phase motor; a rectifier/inverter integrated unit configured to be connected to the rectifying unit and charge the battery; and a control unit configured to control the charging of the battery and an operation of the three-phase motor.Type: ApplicationFiled: March 16, 2012Publication date: September 20, 2012Applicant: LSIS CO., LTD.Inventors: JAE HOON JANG, BYUNG WOON JANG