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公开(公告)号：US10158137B2
公开(公告)日：2018-12-18
申请号：US14679195
申请日：2015-04-06
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Sang Uk Kwon , Nam Woo Lee , Sung Gone Yoon
IPC: H01M8/04 , H01M8/04858 , H01M8/04746 , H01M8/04537 , G01R31/36 , H01M8/04664 , H02J1/10 , H02J7/34 , H02J1/00
Abstract: A control method and system of a fuel cell system are provided. The control method includes draining the voltage of a fuel cell stack by charging a high voltage battery. In addition, the method includes draining the voltage of the fuel cell stack by connecting a fuel cell load device to the fuel cell stack, which is performed when the voltage of the fuel cell stack decreased by the first draining process is less than a predetermined first reference voltage.
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公开(公告)号：US09871401B2
公开(公告)日：2018-01-16
申请号：US14637300
申请日：2015-03-03
Applicant: HYUNDAI MOTOR COMPANY
Inventor： Kyu Il Lee , Boung Ho Min , Sung Gone Yoon
CPC classification number: H02J7/1423 , G01R31/362 , H02J7/0054 , Y02T10/7005
Abstract: A method for controlling low-voltage battery charging may include determining a state-of-charge (SOC) of a low-voltage battery based on a voltage of the low-voltage battery. A base charging voltage is set according to the SOC of the low-voltage battery. A charging voltage of the low-voltage battery is set based on the base charging voltage, a vehicle operation mode, and a SOC of a high-voltage battery.
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公开(公告)号：US09666887B2
公开(公告)日：2017-05-30
申请号：US14842809
申请日：2015-09-01
Applicant: HYUNDAI MOTOR COMPANY
Inventor： Sung Gone Yoon , Kyung Won Suh
IPC: G01R31/00 , H01M8/04664 , G01R19/00 , G01R35/00 , H01M8/0438 , H01M8/04537
CPC classification number: H01M8/04686 , G01R19/0092 , G01R35/00 , H01M8/04388 , H01M8/04589
Abstract: A method for diagnosing a current sensor of a fuel cell system includes calculating an estimated duty value of a hydrogen pressure control valve, corresponding to a sensing value of the current sensor, while operating the fuel cell system. The estimated duty value is compared with an actual duty value where the hydrogen pressure control valve is controlled during the operation of the fuel cell system, thereby calculating an error value between the estimated duty value and the actual duty value. The error value is compared with a critical value in a normal range, thereby determining whether a failure occurs in the current sensor. The hydrogen pressure control valve controls a pressure of hydrogen supplied to a fuel cell stack of the fuel cell system.
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公开(公告)号：US09616769B2
公开(公告)日：2017-04-11
申请号：US14550948
申请日：2014-11-22
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Jae Won Jung , Kyu Il Lee , Sung Gone Yoon
CPC classification number: B60L15/20 , B60L3/12 , B60L15/2009 , B60L15/2072 , B60L2240/423 , B60L2270/142 , B60L2270/145 , Y02T10/644 , Y02T10/645 , Y02T10/7275
Abstract: A torque control apparatus and method for a drive motor is provided. The torque control method includes determining whether an input request torque is a rising torque or a falling torque. In addition, a controller is configured to select one of a rising rate map and a falling rate map based on a result of the judgment on the input request torque. Further, the controller is configured to adjust a rising rate of the rising torque using the rising rate map or a falling rate of the falling torque using the falling rate map.
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公开(公告)号：US09616767B2
公开(公告)日：2017-04-11
申请号：US14708321
申请日：2015-05-11
Applicant: Hyundai Motor Company
Inventor： Kyu Il Lee , Jae Won Jung , Sung Gone Yoon
IPC: H01M10/44 , H01M10/46 , B60L11/18 , H01M16/00 , H01M8/04828 , H01M8/04537
CPC classification number: B60L11/1883 , B60L11/1862 , B60L11/1887 , H01M8/04559 , H01M8/04589 , H01M8/04947 , H01M16/006 , H01M2250/20 , Y02T90/32
Abstract: A system and method for power distribution of a fuel cell hybrid vehicle are provided. The method includes measuring current-voltage performance of a fuel cell and determining a deterioration state of the fuel cell based on the current-voltage performance of the fuel cell. After the deterioration state is determined a battery charging timing, a battery assist quantity, a battery charging quantity, and battery assist timing are variably adjusted based on the deterioration state of the fuel cell.
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Patent Agency Ranking
公开(公告)号：US20160229310A1
公开(公告)日：2016-08-11
申请号：US14823631
申请日：2015-08-11
Applicant: Hyundai Motor Company
Inventor： Boung Ho Min , Kyuil Lee , Sung Gone Yoon
CPC classification number: B60L11/1887 , B60L11/1892 , H02J7/34 , H02J2001/004 , H02J2001/008
Abstract: A low voltage battery charger is provided that includes a fuel cell stack that generates electrical energy by a reaction of hydrogen and oxygen and an air blower that supplies air to the fuel cell stack. A high voltage DC converter converts an output voltage generated at the fuel cell stack to a high voltage. A high voltage battery is charged with the output voltage converted by the high voltage DC converter. A low voltage DC converter converts the output voltage generated at the fuel cell stack to a low voltage and a low voltage battery is charged with the output voltage converted by the low voltage DC converter. A controller then variably adjusts a charge voltage of the low voltage battery based on an air amount supplied to the fuel cell stack through the air blower.
Abstract translation: 提供了一种低压电池充电器，其包括通过氢和氧的反应产生电能的燃料电池堆和向燃料电池堆供应空气的鼓风机。 高压DC转换器将在燃料电池堆处产生的输出电压转换为高电压。 高压电池由高压直流转换器转换的输出电压充电。 低压DC转换器将燃料电池堆产生的输出电压转换为低电压，低电压电池由低压DC转换器转换的输出电压充电。 然后，控制器基于通过鼓风机向燃料电池堆提供的空气量可变地调节低压电池的充电电压。
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公开(公告)号：US10913375B2
公开(公告)日：2021-02-09
申请号：US15997970
申请日：2018-06-05
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Sung Gone Yoon , Seung Heon Lee
IPC: B60L58/40 , B60W10/26 , H01M8/04992 , H01M16/00 , B60L53/22 , B60L50/75 , B60L1/00 , B60L15/20 , B60W10/08 , B60W10/28 , B60W10/12 , B60W20/40
Abstract: An apparatus for power demand distribution in a fuel cell vehicle includes: a battery management system calculating an allowable battery power that a battery can supply; a power demand distribution controller configured to derive a vehicle demand power including a drive motor demand power required by the drive motor, and determine a value corresponding to a vehicle demand power minus the allowable battery power being scaled down or the drive motor demand power, as a fuel cell demand output; and a fuel cell controller configured to drive the air compressor feeding the air to the fuel cell to enable a fuel cell to generate the fuel cell demand output calculated by the power demand distribution controller.
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公开(公告)号：US10069157B2
公开(公告)日：2018-09-04
申请号：US14954471
申请日：2015-11-30
Applicant: HYUNDAI MOTOR COMPANY
Inventor： Jung Jae Lee , Sung Gone Yoon , Sae Hoon Kim
IPC: H01M8/06 , H01M8/04223 , H01M8/04119 , H01M8/04228 , H01M8/04225
Abstract: A fuel cell system includes an air supply unit for supplying air containing oxygen to a fuel cell stack. A humidifier humidifies the supplied air. An air supply line is connected between a cathode inlet of the fuel cell stack and the humidifier to supply the humidified air to the fuel cell stack. A cathode-side exhaust line is connected between a cathode outlet of the fuel cell stack and the humidifier to supply a cathode exhaust gas discharged from a cathode of the fuel cell stack to the humidifier for humidification in the humidifier. A unified valve module includes a bypass line connected between the air supply line and the cathode-side exhaust line and an outward discharge port discharging the cathode exhaust gas to outside, and controls a gas flow between the humidifier and the fuel cell stack and between the bypass line and the outward discharge port.
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公开(公告)号：US09969298B2
公开(公告)日：2018-05-15
申请号：US14823631
申请日：2015-08-11
Applicant: Hyundai Motor Company
Inventor： Boung Ho Min , Kyuil Lee , Sung Gone Yoon
CPC classification number: B60L11/1887 , B60L11/1892 , H02J7/34 , H02J2001/004 , H02J2001/008
Abstract: A low voltage battery charger is provided that includes a fuel cell stack that generates electrical energy by a reaction of hydrogen and oxygen and an air blower that supplies air to the fuel cell stack. A high voltage DC converter converts an output voltage generated at the fuel cell stack to a high voltage. A high voltage battery is charged with the output voltage converted by the high voltage DC converter. A low voltage DC converter converts the output voltage generated at the fuel cell stack to a low voltage and a low voltage battery is charged with the output voltage converted by the low voltage DC converter. A controller then variably adjusts a charge voltage of the low voltage battery based on an air amount supplied to the fuel cell stack through the air blower.
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公开(公告)号：US20180026282A1
公开(公告)日：2018-01-25
申请号：US15335338
申请日：2016-10-26
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Kyu Il Lee , Gun Hyung Park , Sung Gone Yoon
IPC: H01M8/04537 , H01M8/04992 , H01M8/04303 , H01M8/04828
CPC classification number: H01M8/04552 , H01M8/04303 , H01M8/04873 , H01M8/04955 , H01M8/04992 , H01M16/006 , H01M2250/20 , Y02T90/32
Abstract: A restarting system, a controller, and a restarting method for a fuel cell vehicle are provided. The restarting system includes a consumption resistor connected in parallel to a high voltage line that connects between a fuel cell and a high voltage battery and a relay that adjusts the connection between the consumption resistor and the high voltage line. A controller operates the relay and when a shutdown request signal of the vehicle is input, charges the high voltage battery with residual generated power of the fuel cell or connects the relay to the consumption resistor to consume the residual generated power as the consumption resistance. When a starting request signal of the vehicle is input, the controller is reset when an output voltage of the fuel cell is reduced to be equal to or less than a required voltage and then output a starting permission signal of the vehicle.
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