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11.发明授权公开(公告)号：US11563400B2
公开(公告)日：2023-01-24
申请号：US17388867
申请日：2021-07-29
发明人： Tae Il Yoo , Seong Min Kim , Seon Mi Lee , Ho Sun Jang , Ho Rim Choi , Han Hee Park , Seung Hyeon Bin
IPC分类号： H02P29/66
摘要： An iron loss reduction control apparatus for motor permanent magnet overtemperature protection is provided. The apparatus includes: a permanent magnet temperature prediction unit configured to predict a temperature of a permanent magnet in a motor based on a driving state of the motor; a first iron loss reduction unit configured to adjust a switching frequency of a switching element in an inverter providing a driving power to the motor based on the temperature of the permanent magnet; and a second iron loss reduction unit configured to adjust a current command of the motor based on the temperature of the permanent magnet.
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公开(公告)号：US11545923B2
公开(公告)日：2023-01-03
申请号：US17382898
申请日：2021-07-22
发明人： Ho Rim Choi , Han Hee Park , Seong Min Kim , Seon Mi Lee , Ho Sun Jang , Tae Il Yoo , Seung Hyeon Bin
摘要： A motor driving apparatus may include a first inverter circuit including a plurality of first switching devices and connected to a first end portion of each of a plurality of windings in a motor corresponding to a plurality of phases of the motor, respectively, a second inverter circuit including a plurality of second switching devices and connected to a second end portion of each of the plurality of windings, and a plurality of selection switching devices having first end portions connected to a node to which the plurality of windings and the plurality of second switching devices are connected and second end portions connected to each other.
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公开(公告)号：US11091051B2
公开(公告)日：2021-08-17
申请号：US16560667
申请日：2019-09-04
发明人： Seung Hyeon Bin , Kil Young Youn , Sang Kyu Lee , Jae Hwa Jeon
摘要： A cooling control system and method for an on-board charger of a plug-in vehicle drive an electric water pump using a cooling control map when the temperature of the on-board charger equipped in a plug-in vehicle is equal to or above an overheat prevention temperature. The cooling control system and the method determine an entry of an optimal cooling control mode to cool the on-board charger to a temperature at which charging operational efficiency is maximized when the temperature of the on-board charger is below the overheat prevention temperature. Thereby, the on-board charger is cooled and the standard charging efficiency and the charge depletion fuel economy of the plug-in vehicle is maximized.
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公开(公告)号：US10471834B2
公开(公告)日：2019-11-12
申请号：US15848864
申请日：2017-12-20
发明人： Jae Hwa Jeon , Sang Kyu Lee , Kil Young Youn , Seung Hyeon Bin , Gu Bae Kang
摘要： A plug-in vehicle capable of wired-charging a battery through a charging connector using an external charger and a method for controlling the same are provided. The method for controlling charging of a vehicle configured to perform a charging operation using external power includes determining whether a refrigerant circulation device operates normally and the amount of refrigerant is normal when a temperature sensor of a charger malfunctions. When the refrigerant circulation device operates normally and the amount of refrigerant is normal, a temperature of the charger is estimated using a temperature of a heat dissipation device through which the refrigerant passes and the output of the charger is adjusted based on the estimated temperature.
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公开(公告)号：US20200298718A1
公开(公告)日：2020-09-24
申请号：US16560667
申请日：2019-09-04
发明人： Seung Hyeon Bin , Kil Young Youn , Sang Kyu Lee , Jae Hwa Jeon
IPC分类号： B60L53/302 , B60L53/60
摘要： A cooling control system and method for an on-board charger of a plug-in vehicle drive an electric water pump using a cooling control map when the temperature of the on-board charger equipped in a plug-in vehicle is equal to or above an overheat prevention temperature. The cooling control system and the method determine an entry of an optimal cooling control mode to cool the on-board charger to a temperature at which charging operational efficiency is maximized when the temperature of the on-board charger is below the overheat prevention temperature. Thereby, the on-board charger is cooled and the standard charging efficiency and the charge depletion fuel economy of the plug-in vehicle is maximized.
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公开(公告)号：US11108261B2
公开(公告)日：2021-08-31
申请号：US16527851
申请日：2019-07-31
发明人： Kil Young Youn , Seung Hyeon Bin , Sang Kyu Lee , Jae Hwa Jeon
摘要： A supplementary charging system for an auxiliary battery of an eco-friendly vehicle includes: a main battery; an auxiliary battery having a voltage lower than a voltage of the main battery; a low voltage DC-DC converter (LDC) stepping down the voltage of the main battery and providing the stepped-down voltage to the auxiliary battery; and a controller configured to select, when a periodic charge time of the auxiliary battery arrives, either a constant voltage charging method or a constant current charging method as a charging method based on an aging state of the auxiliary battery, and control the LDC to charge the auxiliary battery with a constant voltage or a constant current based on the selected charging method for a predetermined reference time. The controller terminates the charging when a cumulative charge current amount is greater than or equal to a predetermined reference cumulative charge current amount.
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公开(公告)号：US20180354376A1
公开(公告)日：2018-12-13
申请号：US15848864
申请日：2017-12-20
发明人： Jae Hwa Jeon , Sang Kyu Lee , Kil Young Youn , Seung Hyeon Bin , Gu Bae Kang
IPC分类号： B60L11/18
摘要： A plug-in vehicle capable of wired-charging a battery through a charging connector using an external charger and a method for controlling the same are provided. The method for controlling charging of a vehicle configured to perform a charging operation using external power includes determining whether a refrigerant circulation device operates normally and the amount of refrigerant is normal when a temperature sensor of a charger malfunctions. When the refrigerant circulation device operates normally and the amount of refrigerant is normal, a temperature of the charger is estimated using a temperature of a heat dissipation device through which the refrigerant passes and the output of the charger is adjusted based on the estimated temperature.
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