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公开(公告)号：US11437909B2
公开(公告)日：2022-09-06
申请号：US17037236
申请日：2020-09-29
Applicant: Hyundai Motor Company , KIA Motors Corporation
Inventor： Jung Hwi Kim , Jung Mo Yu , Yong Jae Lee , Jae Ho Hwang , Joo Young Park , Jae Hyeon Park
Abstract: 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.
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公开(公告)号：US11296536B2
公开(公告)日：2022-04-05
申请号：US16679436
申请日：2019-11-11
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Yong Jae Lee , Jae Ho Hwang , Joo Young Park , Su Hyun Bae
Abstract: A charging power supplying system using a motor driving system includes an inverter that is connected to a battery, includes at least one switching device, and is configured to change an on/off state of the switching device and to convert power stored in the battery to output the converted power to an output terminal of the inverter, a motor including a plurality of coils that each receive power provided from the output terminal of the inverter, a charging power output terminal that is connected to a neutral point to which the plurality of coils of the motor is commonly connected and outputs current output from the neutral point to an external charging target, and a controller configured to control the switching device in the inverter based on current of the output terminal of the inverter.
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公开(公告)号：US20220069755A1
公开(公告)日：2022-03-03
申请号：US16950118
申请日：2020-11-17
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Yong Jae Lee , Jung Hwi Kim , Jung Mo Yu , Jae Ho Hwang , Joo Young Park , Jae Hyeon Park
IPC: H02P27/06 , H01M10/615 , H01M10/637 , H01M10/625
Abstract: 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.
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公开(公告)号：US11230200B2
公开(公告)日：2022-01-25
申请号：US16432359
申请日：2019-06-05
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Yong Jae Lee , Jae Ho Hwang , Joo Young Park , Su Hyun Bae
Abstract: An apparatus for controlling a charging system using a motor-driving system is configured to suppress the occurrence of torque in a motor when a battery is charged by receiving the supply of external charging current to a neutral point of the motor.
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公开(公告)号：US11171504B2
公开(公告)日：2021-11-09
申请号：US16435922
申请日：2019-06-10
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Yong Jae Lee , Joo Young Park , Jae Ho Hwang , Mu Shin Kwak , Su Hyun Bae
Abstract: A charging system using a motor driving system, the motor driving system including: a battery and an inverter, the inverter configured to receive and convert a direct current (DC) power stored in the battery into a three-phase alternating current (AC) power and to output the three-phase AC power to a motor when the motor is driven and the motor configured to generate a rotation force using the three-phase AC power output from the inverter, the charging system includes a controller configured to control the inverter to boost a voltage at a neutral point of the motor and to output the boosted voltage to the battery by determining duty values of switching elements in the inverter when an external charging current is provided to the neutral point of the motor.
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Patent Agency Ranking
公开(公告)号：US20200177014A1
公开(公告)日：2020-06-04
申请号：US16435922
申请日：2019-06-10
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Yong Jae Lee , Joo Young Park , Jae Ho Hwang , Mu Shin Kwak , Su Hyun Bae
Abstract: A charging system using a motor driving system including a battery, an inverter configured to receive and convert DC power stored in the battery into three-phase AC power and to output the three-phase AC power to a motor when the motor is driven and the motor configured to generate rotation force using the three-phase AC power output from the inverter, may include a controller configured to control the inverter to boost a voltage of a neutral point of the motor and to output the boosted voltage to the battery, by determining duty values of switching elements in the inverter when external charging current is provided to the neutral point of the motor.
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公开(公告)号：US11292362B2
公开(公告)日：2022-04-05
申请号：US16774362
申请日：2020-01-28
Applicant: HYUNDAI MOTOR COMPANY , KIA MOTORS CORPORATION
Inventor： Yong Jae Lee , Su Hyun Bae , Jung Mo Yu , Jae Ho Hwang , Joo Young Park
Abstract: 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.
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公开(公告)号：US11183925B2
公开(公告)日：2021-11-23
申请号：US17036712
申请日：2020-09-29
Applicant: Hyundai Motor Company , KIA Motors Corporation
Inventor： Jung Hwi Kim , Jung Mo Yu , Yong Jae Lee , Jae Ho Hwang , Joo Young Park , Jae Hyeon Park
Abstract: 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.
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公开(公告)号：US20200373781A1
公开(公告)日：2020-11-26
申请号：US16679436
申请日：2019-11-11
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Yong Jae Lee , Jae Ho Hwang , Joo Young Park , Su Hyun Bae
Abstract: A charging power supplying system using a motor driving system includes an inverter that is connected to a battery, includes at least one switching device, and is configured to change an on/off state of the switching device and to convert power stored in the battery to output the converted power to an output terminal of the inverter, a motor including a plurality of coils that each receive power provided from the output terminal of the inverter, a charging power output terminal that is connected to a neutral point to which the plurality of coils of the motor is commonly connected and outputs current output from the neutral point to an external charging target, and a controller configured to control the switching device in the inverter based on current of the output terminal of the inverter.
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公开(公告)号：US20200343848A1
公开(公告)日：2020-10-29
申请号：US16654351
申请日：2019-10-16
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Yong Jae Lee , Joo Young Park , Jae Ho Hwang , Mu Shin Kwak , Su Hyun Bae
IPC: H02P27/08
Abstract: An apparatus for controlling an inverter driving a motor is provided. The apparatus includes a current controller that generates a voltage instruction for causing a current detection value, obtained by measuring a current provided from an inverter to a motor, to correspond to a current instruction for driving the motor. A voltage modulator generates a pulse width modulation signal for controlling on/off states of switching devices in the inverter at a predetermined switching frequency based on the voltage instruction. A frequency determiner determines the switching frequency based on driving information of the motor, determines a plurality of synchronization frequencies based on a speed of the motor, and randomly selects and determines one of the plurality of synchronization frequencies as the switching frequency.
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