Abstract: A fuel cell vehicle has both left-hand drive specifications and right-hand drive specifications. A first converter is placed at a same position whichever of the left-hand drive specifications or the right-hand drive specifications are applied. A second converter is placed on a selected one of the left-hand side and the right-hand side of the center line of the fuel cell vehicle for the left-hand drive specifications, while, for the right-hand drive specifications, placed on the other side of the center line of the fuel cell vehicle opposite to the selected one side for the left-hand drive specifications. A first wire harness to be used as the wire harness for the left-hand drive specifications and a second wire harness to be used as the wire harness for the right-hand drive specifications are equal in length to each other.

Abstract: A reactor unit includes reactors; and a cooler. The reactors are disposed in at least one line on a reactor cooling surface that is one of outer surfaces of the cooler. The cooler has a cooling medium flow passage that is in contact with an inner surface on a reverse side of the reactor cooling surface. The cooling medium flows linearly from an inlet portion to an outlet portion of the cooling medium flow passage. A direction in which the cooling medium flows inside the cooling medium flow passage is same as a direction in which the reactors are disposed in the at least one line. Cooling fins are provided on the inner surface on the reverse side of the reactor cooling surface. A longitudinal direction of each cooling fin is same as the direction in which the cooling medium flows inside the cooling medium flow passage.

Abstract: A fuel cell vehicle includes a high voltage apparatus for a fuel cell, a compressor for an air conditioner disposed under the high voltage apparatus for the fuel cell and constituting a module integrated with the high voltage apparatus for the fuel cell, and a power control unit separated from the high voltage apparatus for the fuel cell, disposed at a vehicle body over the compressor and configured to control an operation of a motor. The compressor and the high voltage apparatus for the fuel cell are connected by a single power wiring.

Abstract: In a battery cell unit, in which battery cells are connected in series, channels for which the battery cells are divided are sequentially connected to a capacitor, and a channel voltage is measured per the channel. For an abnormal channel whose deviation of the measured channel voltage from a reference voltage is larger than a permissible deviation value, measurement is performed by extending a charging time for charging the capacitor. For a normal channel whose deviation is equal to or smaller than the permissible deviation value, the measurement is performed by shortening the charging time for charging the capacitor so as to maintain a measurement cycle, in which the measurement on all of the channels is performed, to be constant.

Abstract: A fuel cell vehicle includes a high voltage apparatus for a fuel cell, a compressor for an air conditioner disposed under the high voltage apparatus for the fuel cell and constituting a module integrated with the high voltage apparatus for the fuel cell, and a power control unit separated from the high voltage apparatus for the fuel cell, disposed at a vehicle body over the compressor and configured to control an operation of a motor. The compressor and the high voltage apparatus for the fuel cell are connected by a single power wiring.

Abstract: A fuel cell vehicle (1) includes: a fuel cell (11); a storage battery (17); a power control unit (10), electrically connected to the fuel cell (11) and the storage battery (17), for controlling electric power in the vehicle (1); a power distribution unit (16), provided on an electrical path between the storage battery (17) and the power control unit, for distributing the electric power from the storage battery; and power-generation auxiliary machines (15) which are electrically connected to the power distribution unit (16) and to which the electric power, distributed by the power distribution unit (16), is supplied for performing operation for electric power generation by the fuel cell (11). The power distribution unit (16) and the power control unit (10) are connected directly without use of a harness.

Abstract: A controller of a fuel cell system performs a starting operation that switches on a first precharge circuit so as to reduce a voltage difference between a first smoothing capacitor and a second smoothing capacitor and subsequently turns on a first relay, when a start switch is turned on in a system off state that the first relay is off. Upon satisfaction of a predetermined condition including at least one of a condition that a difference between the voltage of the first smoothing capacitor and the voltage of the second smoothing capacitor is equal to or greater than a first reference value and a condition that the voltage of the first smoothing capacitor is equal to or higher than a second reference value, the controller uses a second converter to charge the second smoothing capacitor so as to bring the voltage of the second smoothing capacitor closer to the voltage of the first smoothing capacitor, and subsequently switches the first precharge circuit from off to on.

Abstract: A protection bar is arranged between a fuel cell casing and a DC-DC converter in the left-right direction of a fuel cell vehicle. Two fastening surfaces, each being a part of the fuel cell casing, and an FDC flange, which is a part of the DC-DC converter, are fastened and fixed to each other, with one being vertically superimposed on the other, in a space above or below the protection bar.

Abstract: A cell monitor connector is provided that can prevent detachment of the cell monitor connector from a fuel cell device with a simple configuration. A connector 4 for measuring voltage has a housing 41 with a plurality of slits 45 formed therein and an end of a separator 21 of a plurality of fuel cells 2 can be inserted into the slits 45. The housing 41 has a rib 46R at at least one end in the stacking direction of the fuel cells 2 such that the rib 46R projects in a direction perpendicular to the stacking direction.

Abstract: The disclosure provides a fuel cell system for a vehicle. The fuel cell system includes a fuel cell stack disposed in a front room of a vehicle; and a converter assembly. The converter assembly disposed above or below the fuel cell stack includes: a converter; a first connector section; and a second connector section. The second connector section connects the converter assembly and a second electrical instrument which uses a high voltage. The second connector section is disposed behind the first connector section in a front-rear direction of the vehicle, and when the first connector section and the second connector section are seen from the front-rear direction of the vehicle, the first connector section and at least a portion of the second connector section are overlapped each other.

Abstract: An air compressor as a fluid compressor includes: a suction port and a delivery port provided at upper and lower portions, respectively, of a pump chamber; a suction passage in communication with the inside of the pump chamber via the suction port; a delivery passage in communication with the inside of the pump chamber via the delivery port; and a driving rotor and a driven rotor provided in the pump chamber. At least a part of the suction passage is located below the suction port.

Abstract: Provided is a connector cover structure that can fasten a connector cover without support for the connector cover with a finger and showing a high degree of assembly of a cover member in fabrication. The connector cover structure covers connects 61 and 62 for passage of high-voltage current provided in a casing 51 housing a high-voltage component in a vehicle 10. The connector cover structure includes connector covers 71 and 72 each having a flat surface along a vertical direction, first anchoring parts 91 and second anchoring parts 74 provided in the connector covers 71 and 72, fastening holes 92 formed in the connector covers 71 and 72 and configured to fasten the connector covers 71 and 72 to the casing 51, and float preventing mechanisms 95 for pressing the surfaces of the connector covers 71 and 72.

Abstract: A voltage converter system comprises a plurality of voltage conversion circuits, each of the voltage conversion circuits includes a reactor and a switching element, a controller, and a single current sensor connected with the reactors of two voltage conversion circuits and configured to be used in common by the two voltage conversion circuits in order to measure the reactor current. When only one voltage conversion circuit out of the two voltage conversion circuits is driven as an object circuit, the controller repeatedly performs a correction amount learning process. When the measured current value approaches the target value to be within a predetermined range or when the correction amount learning process has been performed a predetermined number of times, the controller changes the object circuit from the one voltage conversion circuit to the other voltage conversion circuit, and repeatedly performs the correction amount learning process.

Abstract: A fuel cell vehicle has both left-hand drive specifications and right-hand drive specifications. A first converter is placed at a same position whichever of the left-hand drive specifications or the right-hand drive specifications are applied. A second converter is placed on a selected one of the left-hand side and the right-hand side of the center line of the fuel cell vehicle for the left-hand drive specifications, while, for the right-hand drive specifications, placed on the other side of the center line of the fuel cell vehicle opposite to the selected one side for the left-hand drive specifications. A first wire harness to be used as the wire harness for the left-hand drive specifications and a second wire harness to be used as the wire harness for the right-hand drive specifications are equal in length to each other.

Abstract: A fuel cell vehicle includes a high voltage apparatus for a fuel cell, a compressor for an air conditioner disposed under the high voltage apparatus for the fuel cell and constituting a module integrated with the high voltage apparatus for the fuel cell, and a power control unit separated from the high voltage apparatus for the fuel cell, disposed at a vehicle body over the compressor and configured to control an operation of a motor. The compressor and the high voltage apparatus for the fuel cell are connected by a single power wiring.

Abstract: In a battery cell unit, in which battery cells are connected in series, channels for which the battery cells are divided are sequentially connected to a capacitor, and a channel voltage is measured per the channel. For an abnormal channel whose deviation of the measured channel voltage from a reference voltage is larger than a permissible deviation value, measurement is performed by extending a charging time for charging the capacitor. For a normal channel whose deviation is equal to or smaller than the permissible deviation value, the measurement is performed by shortening the charging time for charging the capacitor so as to maintain a measurement cycle, in which the measurement on all of the channels is performed, to be constant.

Abstract: The disclosure provides a fuel cell system for a vehicle. The fuel cell system includes a fuel cell stack disposed in a front room of a vehicle; and a converter assembly. The converter assembly disposed above or below the fuel cell stack includes: a converter; a first connector section; and a second connector section. The second connector section connects the converter assembly and a second electrical instrument which uses a high voltage. The second connector section is disposed behind the first connector section in a front-rear direction of the vehicle, and when the first connector section and the second connector section are seen from the front-rear direction of the vehicle, the first connector section and at least a portion of the second connector section are overlapped each other.

Abstract: A reactor unit includes reactors; and a cooler. The reactors are disposed in at least one line on a reactor cooling surface that is one of outer surfaces of the cooler. The cooler has a cooling medium flow passage that is in contact with an inner surface on a reverse side of the reactor cooling surface. The cooling medium flows linearly from an inlet portion to an outlet portion of the cooling medium flow passage. A direction in which the cooling medium flows inside the cooling medium flow passage is same as a direction in which the reactors are disposed in the at least one line. Cooling fins are provided on the inner surface on the reverse side of the reactor cooling surface. A longitudinal direction of each cooling fin is same as the direction in which the cooling medium flows inside the cooling medium flow passage.

Abstract: A fuel cell unit includes a fuel cell stack having a stacked plurality of single cells; a stack case housing the fuel cell stack; a component case having an opening dosed by a wall of the stack case that is parallel to a stacking direction of the single cells; and a high-voltage component which is housed inside the component case and fixed to at least one of an opposite wall and an extending wall of the component case, on a surface of that wall facing the inside of the component case, and to which electricity generated in the fuel cell stack is supplied. The opposite wall faces the opening. The extending wall extends from the opposite wall toward the stack case.

Abstract: A device unit is provided with a first heating element, a second heating element configured to generate a heat in an amount smaller than that generated by the first heating element, and a cooler located between the first heating element and the second heating element. The cooler has a coolant flow passage through which a coolant flows, and cooling fins disposed on a first heating element side in the coolant flow passage in a manner as to be substantially in parallel with a flow direction of the coolant, and a fluid resistance of the coolant in the coolant flow passage is smaller on a second heating element side than on the first heating element side.