Abstract: A fuel cell vehicle includes a battery, a cell stack configured to supply a stack voltage, a multiphase converter configured to adjust a voltage range between the cell stack and the battery. The multiphase converter includes a plurality of current paths connected to the cell stack. The fuel cell vehicle further includes a main controller configured to, for measurement of impedance of the cell stack, control the multiphase converter to allow an alternating current to flow along an auxiliary path rather than a main path used to adjust the voltage range among the plurality of current paths.

Abstract: A fuel cell apparatus includes a fuel cell; a voltage level conversion unit configured to boost stack voltage generated by the fuel cell in response to a first control signal; a main battery configured to store boosted voltage output from the voltage level conversion unit; an auxiliary unit configured to be driven by auxiliary power generated using voltage stored in a sub-battery and to generate the first control signal; and a pre-charging unit configured to pre-charge the voltage level conversion unit using pre-charging voltage generated through the auxiliary unit.

Abstract: A method of controlling a fuel cell vehicle including a fuel cell and a voltage level conversion unit including a plurality of boost converters configured to boost stack voltage generated by the fuel cell includes determining whether the level of the output from the voltage level conversion unit increases or decreases. The method also includes reducing the number of boost converters to be operated among the N boost converters in accordance with the magnitude of a voltage command value based on determining that the output level increases. The method additionally includes increasing the number of boost converters to be operated among the N boost converters in accordance with the magnitude of the voltage command value based on determining that the output level decreases.

Abstract: Disclosed are a fuel cell vehicle and a method of controlling the same. The fuel cell vehicle includes a battery, a cell stack configured to provide stack voltage, a load connected to the battery and the cell stack, a multiphase converter configured to adjust a voltage range between the cell stack and the battery and including first to Nth (where N is a positive integer of 2 or greater) current paths connected to the cell stack and connected in parallel to each other, and a main controller configured to control the multiphase converter to allow alternating current to sequentially flow through the first to Nth current paths when measurement of the impedance of the cell stack is required.

Abstract: In an embodiment a cell-monitoring connector includes a housing including a lock portion corresponding to a groove portion defined by lock recesses stacked and overlapped in the first direction, wherein the lock recesses are formed in at least one of upper portions or lower portions of terminals protruding in a second direction, the second direction intersecting the first direction toward the cell-monitoring connector from side portions of separators included in the plurality of unit cells and a connector position assurance (CPA) including a lower portion configured to be inserted into the lock portion of the housing in a third direction and to be locked in the groove portion and an upper portion extending from the lower portion in the third direction, the upper portion having a top surface having an area larger than an area of the lower portion in a direction intersecting the third direction.

Abstract: Disclosed is a hybrid system of carbon dioxide compact separation membrane and carbon recycling for an urban power plant for effluent carbon dioxide concentration control, including a blower into which an exhaust gas is input and which distributes the exhaust gas, a photo-culture process unit which receives the exhaust gas from the blower, performs a photo-culture process using microalgae, and discharges a first treatment gas, a mixing tank into which the exhaust gas supplied from the blower and the first treatment gas are input, a separation membrane process unit which receives a second treatment gas mixed in the mixing tank, and separates a third enriched gas from the second treatment gas using a plurality of separation membranes, a mineralization reaction unit which mineralizes carbon dioxide using the third enriched gas separated in the separation membrane process unit and discharges a third treatment gas to the mixing tank, a sensor unit which measures a carbon dioxide concentration discharged from each

Abstract: A fuel cell vehicle includes a cell stack, a DC level converter, an output unit, a first switching unit disposed between a positive output terminal of the DC level converter and a positive input terminal of the output unit, a second switching unit disposed between a negative output terminal of the DC level converter and a negative input terminal of the output unit, a resistor and a third switching unit connected to each other in series between the positive output terminal of the DC level converter and the negative output terminal of the DC level converter, a fourth switching unit disposed between a contact point between the resistor and the third switching unit and the positive input terminal of the output unit, and a controller for controlling switching operation of the first, second, third and fourth switching units according to an operation mode.

Abstract: A fuel cell apparatus of the disclosure includes a case having defined therein a first accommodation space and a second accommodation space, which are isolated from each other by a partition wall, a first cover covering the first accommodation space in the case, a second cover covering the second accommodation space in the case, a power distribution unit disposed in the first accommodation space, and a power conversion unit disposed in the second accommodation space.

Abstract: An embodiment cell-monitoring connector for a fuel cell in which the cell-monitoring connector is configured to be mounted to unit cells stacked in a first direction is provided. The cell-monitoring connector includes a housing configured to be coupled to a plurality of terminals protruding from side portions of separators included in each of the unit cells toward the cell-monitoring connector in a second direction intersecting the first direction and a connector and terminal position assurance (CTPA) configured to be detachably coupled to the housing, the CTPA including a connector position assurance (CPA) configured to be locked in a groove portion to secure the housing to the plurality of terminals, a terminal position assurance (TPA) configured to be detachably coupled to a front surface of the housing and to allow connection terminals to be press-fitted into the housing, and a connecting portion interconnecting the CPA and the TPA.

Abstract: A fuel cell vehicle includes a cell stack, a DC level converter, an output unit, a first switching unit disposed between a positive output terminal of the DC level converter and a positive input terminal of the output unit, a second switching unit disposed between a negative output terminal of the DC level converter and a negative input terminal of the output unit, a resistor and a third switching unit connected to each other in series between the positive output terminal of the DC level converter and the negative output terminal of the DC level converter, a fourth switching unit disposed between a contact point between the resistor and the third switching unit and the positive input terminal of the output unit, and a controller for controlling switching operation of the first, second, third and fourth switching units according to an operation mode.

Abstract: The present disclosure relates to a steaming apparatus, and more particularly, to, a streaming apparatus in which, by spraying steam from a lateral portion of a transfer apparatus that transfers an object to be cooked, a steam input amount may be reduced and facility operation and maintenance costs may be saved.

Abstract: In an embodiment a cell-monitoring connector includes a housing including a lock portion corresponding to a groove portion defined by lock recesses stacked and overlapped in the first direction, wherein the lock recesses are formed in at least one of upper portions or lower portions of terminals protruding in a second direction, the second direction intersecting the first direction toward the cell-monitoring connector from side portions of separators included in the plurality of unit cells and a connector position assurance (CPA) including a lower portion configured to be inserted into the lock portion of the housing in a third direction and to be locked in the groove portion and an upper portion extending from the lower portion in the third direction, the upper portion having a top surface having an area larger than an area of the lower portion in a direction intersecting the third direction.

Abstract: Disclosed is a hybrid system of carbon dioxide compact separation membrane and carbon recycling for an urban power plant for effluent carbon dioxide concentration control, including a blower into which an exhaust gas is input and which distributes the exhaust gas, a photo-culture process unit which receives the exhaust gas from the blower, performs a photo-culture process using microalgae, and discharges a first treatment gas, a mixing tank into which the exhaust gas supplied from the blower and the first treatment gas are input, a separation membrane process unit which receives a second treatment gas mixed in the mixing tank, and separates a third enriched gas from the second treatment gas using a plurality of separation membranes, a mineralization reaction unit which mineralizes carbon dioxide using the third enriched gas separated in the separation membrane process unit and discharges a third treatment gas to the mixing tank, a sensor unit which measures a carbon dioxide concentration discharged from each

Abstract: A fuel cell vehicle includes a fuel cell and a junction box. The fuel cell includes at least one cell stack including a plurality of unit cells in a stacked configuration, heaters disposed at end portions of the at least one cell stack, current collectors disposed at the end portions of the at least one cell stack, a terminal block electrically connecting the current collectors and the heaters to the junction box, a positive bus bar and a negative bus bar electrically connecting the current collectors to the terminal block, and a positive wire and a negative wire electrically connecting the heaters to the terminal block. The junction box includes a first switching unit disposed between the positive wire and the positive bus bar, and a second switching unit disposed between the negative wire and the negative bus bar.

Abstract: A fuel cell vehicle includes a fuel cell and a junction box. The fuel cell includes at least one cell stack including a plurality of unit cells in a stacked configuration, heaters disposed at end portions of the at least one cell stack, current collectors disposed at the end portions of the at least one cell stack, a terminal block electrically connecting the current collectors and the heaters to the junction box, a positive bus bar and a negative bus bar electrically connecting the current collectors to the terminal block, and a positive wire and a negative wire electrically connecting the heaters to the terminal block. The junction box includes a first switching unit disposed between the positive wire and the positive bus bar, and a second switching unit disposed between the negative wire and the negative bus bar.

Abstract: A connector assembly comprises a housing assembly including a housing shell and a center pin disposed on an inner side of the housing shell, and a head assembly including a head shell detachable from the housing shell, a head body fixed to an inner side of the head shell, and a socket mounted on the head body. The socket includes at least four contact members disposed around a central axis of the head body in a circumferential direction. Each of the contact members has a shape bent toward the central axis of the head body.

Abstract: A connector assembly comprises a housing assembly including a housing shell and a center pin disposed on an inner side of the housing shell, and a head assembly including a head shell detachable from the housing shell, a head body fixed to an inner side of the head shell, and a socket mounted on the head body. The socket includes at least four contact members disposed around a central axis of the head body in a circumferential direction. Each of the contact members has a shape bent toward the central axis of the head body.

Abstract: An improved data writing density judging apparatus and method for a disc capable of judging a writing density of a disc by detecting an amount of cross talk or detecting a tracking error signal. Cross talk is detected when a disc track is scanned by a beam. A tracking error signal is detected when a pick-up member jumps a certain track while the pick-up member moves across a disc track. The improved apparatus and method computes a ratio between a minimum value and a maximum value of an envelope signal based on the detected amount of cross talk a writing density can be determined. The improved apparatus and method also converts a tracking error signal which is a high frequency analog signal into a digital signal that is used to compute a time required for a pick-up member to jump a certain track. Based on the computed time which is compared with a reference value, a writing density of a disk can also be determined.

Abstract: An improved data writing density judging apparatus and method for a disc capable of judging a writing density of a disc by detecting an amount of cross talk or detecting a tracking error signal. Cross talk is detected when a disc track is scanned by a beam. A tracking error signal is detected when a pick-up member jumps a certain track while the pick-up member moves across a disc track. The improved apparatus and method computes a ratio between a minimum value and a maximum value of an envelope signal based on the detected amount of cross talk a writing density can be determined. The improved apparatus and method also converts a tracking error signal which is a high frequency analog signal into a digital signal that is used to compute a time required for a pick-up member to jump a certain track. Based on the computed time which is compared with a reference value, a writing density of a disk can also be determined.