Patents by Inventor Gun Soo Kang
Gun Soo Kang 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: 11137268Abstract: An apparatus for generating a resolver excitation signal and a vehicle including the same are provided. The apparatus includes an input portion that is configured to receive an input signal and a current amplifier that is configured to generate an output signal by amplifying the input signal and that has a circuit protector that protects a circuit from an overcurrent. An output portion is configured to output the output signal. Additionally, the circuit protector includes a first transistor that has an emitter connected to the output portion, a second transistor that has a collector connected to the output portion and a base connected to a base of the first transistor and a rectifier connected to a base of the first transistor and the base of the second transistor.Type: GrantFiled: October 27, 2017Date of Patent: October 5, 2021Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Seonghan Kim, Hun Kong, Gun Soo Kang
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Patent number: 10962423Abstract: A method includes: detecting, by a motor controller, an interlock failure of a connector for connecting between a gate driver and the motor controller, the connector being connected to an inverter for driving a motor in an eco-friendly vehicle; and determining, by the motor controller, that the interlock failure of the connector has occurred when an output value of a signal processor provided in the motor controller so that a sensing signal is inputted from the gate driver through the connector is detected as a value beyond a predetermined normal sensing range.Type: GrantFiled: September 18, 2015Date of Patent: March 30, 2021Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Gun Soo Kang, Ki Jong Lee, Kang Ho Jeong
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Patent number: 10719139Abstract: A sensing system and method are provided. The sensing system includes a sensor unit that is configured to output a voltage having a magnitude that corresponds to a detected physical quantity and an amplification unit that is configured to amplify a magnitude in the output of the sensor unit to a constant gain. An offset removal unit is configured to remove a direct current (DC) offset from an output amplified by the amplification unit to generate a first detection signal. An inversion circuit unit is configured to invert the first detection signal to generate a second detection signal. A microcomputer is configured to then calculate the physical quantity detected by the sensor unit based on the first detection signal and the second detection signal.Type: GrantFiled: November 30, 2017Date of Patent: July 21, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Hun Kong, Seong Han Kim, Gun Soo Kang, Sang Hoon Kwak
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Publication number: 20180348892Abstract: A sensing system and method are provided. The sensing system includes a sensor unit that is configured to output a voltage having a magnitude that corresponds to a detected physical quantity and an amplification unit that is configured to amplify a magnitude in the output of the sensor unit to a constant gain. An offset removal unit is configured to remove a direct current (DC) offset from an output amplified by the amplification unit to generate a first detection signal. An inversion circuit unit is configured to invert the first detection signal to generate a second detection signal. A microcomputer is configured to then calculate the physical quantity detected by the sensor unit based on the first detection signal and the second detection signal.Type: ApplicationFiled: November 30, 2017Publication date: December 6, 2018Inventors: Hun Kong, Seong Han Kim, Gun Soo Kang, Sang Hoon Kwak
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Publication number: 20180128651Abstract: An apparatus for generating a resolver excitation signal and a vehicle including the same are provided. The apparatus includes an input portion that is configured to receive an input signal and a current amplifier that is configured to generate an output signal by amplifying the input signal and that has a circuit protector that protects a circuit from an overcurrent. An output portion is configured to output the output signal. Additionally, the circuit protector includes a first transistor that has an emitter connected to the output portion, a second transistor that has a collector connected to the output portion and a base connected to a base of the first transistor and a rectifier connected to a base of the first transistor and the base of the second transistor.Type: ApplicationFiled: October 27, 2017Publication date: May 10, 2018Inventors: Seonghan Kim, Hun Kong, Gun Soo Kang
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Publication number: 20180091123Abstract: Disclosed is an apparatus for generating high-quality sine waves through a simple circuit structure. The apparatus comprises a square wave generator for generating a plurality of square waves different in frequency from one to another; a combined circuit for combining the plurality of square waves into a synthetic wave; and a filter circuit for filtering the synthetic wave through a low-pass filter. Also, a method for generating high-quality sine waves is provided.Type: ApplicationFiled: December 9, 2016Publication date: March 29, 2018Applicant: HYUNDAI MOTOR COMPANYInventors: Jae Hyeon PARK, Sang Hoon KWAK, Gun Soo KANG
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Patent number: 9544990Abstract: An analog control system configured to operate a converter in an electric vehicle battery charging system is provided. The analog control system includes a pulse width modulation (PWM) output unit that is configured to output a PWM signal to the converter and an integrated control unit that is configured to sense an input voltage and an output voltage of the converter. The analog control system may be implemented on a printed circuit board having a first ground voltage stage connected to the PWM output unit, a second ground voltage stage separated from the first ground voltage stage by a first predetermined interval and connected to the integrated control unit. A filtering unit is disposed between the first ground voltage stage and the second ground voltage stage to pass an output signal of a predetermined band from the PWM unit to the integrated control unit.Type: GrantFiled: November 25, 2014Date of Patent: January 10, 2017Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Jung Hwan Na, Sang Hoon Kwak, Tae Hwan Chung, Gun Soo Kang
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Publication number: 20160124046Abstract: A method includes: detecting, by a motor controller, an interlock failure of a connector for connecting between a gate driver and the motor controller, the connector being connected to an inverter for driving a motor in an eco-friendly vehicle; and determining, by the motor controller, that the interlock failure of the connector has occurred when an output value of a signal processor provided in the motor controller so that a sensing signal is inputted from the gate driver through the connector is detected as a value beyond a predetermined normal sensing range.Type: ApplicationFiled: September 18, 2015Publication date: May 5, 2016Inventors: Gun Soo Kang, Ki Jong Lee, Kang Ho Jeong
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Patent number: 9321359Abstract: A power supply system and method for charging a battery of a vehicle are provided and include a charger that is configured to charge the battery and a charging controller that is configured to receive a voltage to charge the battery and operate the charger. An auxiliary battery is configured to supply a first DC voltage to operate the charging controller and a power supplier is configured to generate a second DC voltage greater than the first DC voltage using external AC power, and to supply the second DC voltage to the charging controller as a driving power source to charge the battery. First and second diodes are respectively installed at output ends of the power supplier and the auxiliary battery, a cathode voltage of the second diode is increased when the power supplier supplies the second DC voltage, and the first DC voltage of the auxiliary battery is blocked.Type: GrantFiled: December 4, 2013Date of Patent: April 26, 2016Assignee: Hyundai Motor CompanyInventors: Hun Kong, Dongjun Lee, Gyu Yeong Choe, Gun Soo Kang
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Patent number: 9297672Abstract: An interface circuit for detecting a fault in a resolver is provided. More specifically, the interface circuit includes the resolver connected to an intermediate point of a stator coil of a first output terminal for a sine wave signal and an intermediate point of the stator coil of a second output terminal for a cosine wave signal to output the sine and cosine wave signals as a common mode signal. Also includes is resolver fault detection interface unit that adjusts a gain and an offset of the sine wave signal and the cosine wave signal in order to adjust the sine wave signal and the cosine wave signal received as a common mode signal to a frequency that can be suitably applied to an analog/digital terminal of a microcomputer, and to allow high-frequency components of the sine wave signal and the cosine wave signal to pass therethrough.Type: GrantFiled: December 24, 2013Date of Patent: March 29, 2016Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Bum Sik Kim, Gun Soo Kang, Kang Ho Jeong, Hun Kong, Jong Kyong Lim, Young Kook Lee, Heon Young Kwak
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Publication number: 20160023561Abstract: An analog control system configured to operate a converter in an electric vehicle battery charging system is provided. The analog control system includes a pulse width modulation (PWM) output unit that is configured to output a PWM signal to the converter and an integrated control unit that is configured to sense an input voltage and an output voltage of the converter. The analog control system may be implemented on a printed circuit board having a first ground voltage stage connected to the PWM output unit, a second ground voltage stage separated from the first ground voltage stage by a first predetermined interval and connected to the integrated control unit. A filtering unit is disposed between the first ground voltage stage and the second ground voltage stage to pass an output signal of a predetermined band from the PWM unit to the integrated control unit.Type: ApplicationFiled: November 25, 2014Publication date: January 28, 2016Inventors: Jung Hwan Na, Sang Hoon Kwak, Tae Hwan Chung, Gun Soo Kang
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Patent number: 9171407Abstract: A system and method that compares an input voltage value through the input terminal of the LDC with a setting voltage in an ignition on-state and an on-state of a main relay for connection of a high-voltage battery Then a verification is made whether the main relay is in the on-state and whether the voltage of an input capacitor in an inverter is in a normal voltage range. As a result a diagnosis is made whether the disconnection of the input fuse has occurred in a low-voltage state when the input voltage is no more than the setting voltage and the on-state of the main relay and the state in which the voltage of the input capacitor in the inverter is in the normal voltage range.Type: GrantFiled: April 17, 2013Date of Patent: October 27, 2015Assignee: Hyundai Motor CompanyInventors: Gun Soo Kang, Ki Jong Lee
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Publication number: 20150077156Abstract: An interface circuit for detecting a fault in a resolver is provided. More specifically, the interface circuit includes the resolver connected to an intermediate point of a stator coil of a first output terminal for a sine wave signal and an intermediate point of the stator coil of a second output terminal for a cosine wave signal to output the sine and cosine wave signals as a common mode signal. Also includes is resolver fault detection interface unit that adjusts a gain and an offset of the sine wave signal and the cosine wave signal in order to adjust the sine wave signal and the cosine wave signal received as a common mode signal to a frequency that can be suitably applied to an analog/digital terminal of a microcomputer, and to allow high-frequency components of the sine wave signal and the cosine wave signal to pass therethrough.Type: ApplicationFiled: December 24, 2013Publication date: March 19, 2015Applicant: KIA MOTORS CORPORATIONInventors: Bum Sik Kim, Gun Soo Kang, Kang Ho Jeong, Hun Kong, Jong Kyong Lim, Young Kook Lee, Heon Young Kwak
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Patent number: 8880262Abstract: Disclosed herein is a system and method for incipient drive of a slow charger for a vehicle. Specifically, an incipient drive entry of the slow charger used when a battery is charged in an electric vehicle (EV) or a plug-in hybrid electric vehicle (PHEV) may be performed. The method includes operating, by a controller, a regulator by outputting a control pilot (CP) signal from electric vehicle supply equipment (EVSE). Additionally, the method includes operating, by the controller, a flip-flop by outputting a driving signal from the regulator and operating a switching mode power supply (SMPS) by outputting a driving signal from the flip-flop. The method further includes resetting, by the controller, the flip-flop by outputting a reset signal from a central processing unit (CPU) turned on by the SMPS.Type: GrantFiled: April 18, 2013Date of Patent: November 4, 2014Assignee: Hyundai Motor CompanyInventors: Sang Hoon Kwak, Jee Hye Jeong, Dong Jun Lee, Gyu Yeong Choe, Gun Soo Kang
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Publication number: 20140253018Abstract: A power supply system and method for charging a battery of a vehicle are provided and include a charger that is configured to charge the battery and a charging controller that is configured to receive a voltage to charge the battery and operate the charger. An auxiliary battery is configured to supply a first DC voltage to operate the charging controller and a power supplier is configured to generate a second DC voltage greater than the first DC voltage using external AC power, and to supply the second DC voltage to the charging controller as a driving power source to charge the battery. First and second diodes are respectively installed at output ends of the power supplier and the auxiliary battery, a cathode voltage of the second diode is increased when the power supplier supplies the second DC voltage, and the first DC voltage of the auxiliary battery is blocked.Type: ApplicationFiled: December 4, 2013Publication date: September 11, 2014Applicant: HYUNDAI MOTOR COMPANYInventors: Hun Kong, Dongjun Lee, Gyu Yeong Choe, Gun Soo Kang
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Publication number: 20140188315Abstract: A system and method that compares an input voltage value through the input terminal of the LDC with a setting voltage in an ignition on-state and an on-state of a main relay for connection of a high-voltage battery Then a verification is made whether the main relay is in the on-state and whether the voltage of an input capacitor in an inverter is in a normal voltage range. As a result a diagnosis is made whether the disconnection of the input fuse has occurred in a low-voltage state when the input voltage is no more than the setting voltage and the on-state of the main relay and the state in which the voltage of the input capacitor in the inverter is in the normal voltage range.Type: ApplicationFiled: April 17, 2013Publication date: July 3, 2014Applicant: HYUNDAI MOTOR COMPANYInventors: Gun Soo Kang, Ki Jong Lee