Abstract: A battery monitoring apparatus includes a circuit board, a signal control unit configured to cause a predetermined AC signal to be outputted from a storage battery through a first electrical path, a response signal input unit configured to input, through a pair of second electrical paths, a response signal of the storage battery to the AC signal, and a calculating unit configured to calculate, based on the response signal, a complex impedance of the storage battery. The first and second electrical paths are provided on a major face of the circuit board. On the circuit board, there is defined a first region which is surrounded by the first and second electrical paths and two terminals of the storage battery. The size of the first region is set to have an electromotive force, which is induced in the second electrical paths by the AC signal, be within an allowable electromotive-force range.

Abstract: A power converter configured to be connected to three or more voltage parts, includes three or more power-conversion circuitries to be connected to respective ones of the three or more voltage parts, and a multi-port transformer connected to the three or more power-conversion circuitries at respectively different ports. The three or more voltage parts include a vehicle drive battery and a plurality of alternating-current (AC) voltage parts. Each of the plurality of AC voltage parts is configured to provide at least one of power input to a multi-port transformer side and power output from the multi-port transformer side.

Abstract: A battery monitoring apparatus acquires a first physical quantity detected by a first detecting unit, and acquires a second physical quantity detected by a second detecting unit at each predetermined detection period. The battery monitoring apparatus stores the acquired first physical quantity and the acquired second physical quantity in association with respective time parameters. The time parameter is a time of detection of the respective first or second physical quantity or a correlation value that is correlated with the time of detection of the respective first or second physical quantity. The battery monitoring apparatus monitors a state of a storage battery using a set of first physical quantity and second physical quantity of which a difference in the time of detection is shorter than the detection period, among the first physical quantities and the second physical quantities stored by the battery monitoring apparatus, based on the time parameters.

Abstract: A voltage detection apparatus for an assembled battery includes: a capacitor; input-side switches provided between the capacitor and detection targets each including at least one battery cell; a voltage detection unit configured to detect the voltage of the capacitor; output-side switches provided between the capacitor and the voltage detection unit; a capacitor charging unit configured to charge the capacitor using a specific detection target; a first-voltage acquiring unit configured to acquire a first voltage which is the voltage of the capacitor after the passage of a first period from the charging of the capacitor; a second-voltage acquiring unit configured to acquire a second voltage which is the voltage of the capacitor after the passage of a second period from the acquisition of the first voltage; and a fault determining unit configured to determine, based on the acquired first and second voltages, whether a leak fault has occurred in the capacitor.

Abstract: A rail cleaning device for a passenger conveyor includes: a main body; a cleaning body; and a fastening band. The main body has a through hole. The through hole is arranged so that lower ends of link plates are located at an intermediate position of the through hole in a height direction of the main body when the cleaning body is held in abutment against an upper surface of a drive rail. The fastening band has a ring shape passing through an inside of the through hole and over outer sides of the link plates and extending to an upper side of the main body. The fastening band is tightened so as to press the cleaning body onto the drive rail by bringing an upper end of the main body close to the lower ends of the link plates, thereby fastening the main body to the link plates.

Abstract: A rail cleaning device for a passenger conveyor includes: a main body; a cleaning body; and a fastening band. The main body has a through hole. The through hole is arranged so that lower ends of link plates are located at an intermediate position of the through hole in a height direction of the main body when the cleaning body is held in abutment against an upper surface of a drive rail. The fastening band has a ring shape passing through an inside of the through hole and over outer sides of the link plates and extending to an upper side of the main body. The fastening band is tightened so as to press the cleaning body onto the drive rail by bringing an upper end of the main body close to the lower ends of the link plates, thereby fastening the main body to the link plates.

Abstract: A battery monitoring apparatus includes a circuit board, a signal control unit configured to cause a predetermined AC signal to be outputted from a storage battery through a first electrical path, a response signal input unit configured to input, through a pair of second electrical paths, a response signal of the storage battery to the AC signal, and a calculating unit configured to calculate, based on the response signal, a complex impedance of the storage battery. The first and second electrical paths are provided on a major face of the circuit board. On the circuit board, there is defined a first region which is surrounded by the first and second electrical paths and two terminals of the storage battery. The size of the first region is set to have an electromotive force, which is induced in the second electrical paths by the AC signal, be within an allowable electromotive-force range.

Abstract: A voltage detection apparatus for an assembled battery includes: a capacitor; input-side switches provided between the capacitor and detection targets each including at least one battery cell; a voltage detection unit configured to detect the voltage of the capacitor; output-side switches provided between the capacitor and the voltage detection unit; a capacitor charging unit configured to charge the capacitor using a specific detection target; a first-voltage acquiring unit configured to acquire a first voltage which is the voltage of the capacitor after the passage of a first period from the charging of the capacitor; a second-voltage acquiring unit configured to acquire a second voltage which is the voltage of the capacitor after the passage of a second period from the acquisition of the first voltage; and a fault determining unit configured to determine, based on the acquired first and second voltages, whether a leak fault has occurred in the capacitor.

Abstract: A battery monitoring system monitors a storage battery.

Abstract: A battery monitoring apparatus acquires a first physical quantity detected by a first detecting unit, and acquires a second physical quantity detected by a second detecting unit at each predetermined detection period. The battery monitoring apparatus stores the acquired first physical quantity and the acquired second physical quantity in association with respective time parameters. The time parameter is a time of detection of the respective first or second physical quantity or a correlation value that is correlated with the time of detection of the respective first or second physical quantity. The battery monitoring apparatus monitors a state of a storage battery using a set of first physical quantity and second physical quantity of which a difference in the time of detection is shorter than the detection period, among the first physical quantities and the second physical quantities stored by the battery monitoring apparatus, based on the time parameters.

Abstract: A battery monitoring system monitors a storage battery.

Abstract: A balustrade device for a conveyor includes at least a holder body, a clamping component assembled to the holder body, and a clamping force applying mechanism. The clamping component has a panel-side pressing surface, and the clamping force applying mechanism has a clamping force action axis intersecting, in vertical cross-sectional view, with the panel-side pressing surface or a plane extending from the panel-side pressing surface. Thus, a high gripping force can be generated in spite of a two-dimensional shape of the balustrade device.

Abstract: A battery monitoring apparatus for monitoring a battery condition of an assembled battery. In the apparatus, a monitoring unit is powered by the assembled battery and transitions from a normal mode, in which power supply from the assembled battery to the monitoring unit is maintained, to a dark-current mode, in which the power supply is partially interrupted, in response to a mode-switching instruction signal from a control unit. Upon reception of a mode confirmation signal from the control unit during the normal mode, the monitoring unit transmits a response signal to the control unit. The control unit transmits the mode-switching instruction signal to the monitoring unit, and thereafter transmits the mode confirmation signal to the monitoring unit. Upon reception of the response signal to the mode confirmation signal from the monitoring unit, the control unit determines that the dark-current mode of the monitoring unit is malfunctioning.

Abstract: A voltage monitoring device monitors voltage of each of battery cells connected in series to one another to configure an assembled battery. The device includes a capacitor circuit, a filter circuit, an input side connection switching unit, a potential difference detection unit, and an output side connection switching unit. The capacitor circuit includes a plurality of capacitors connected in series to one another. The filter circuit includes a plurality of resistors connected to an electrode terminal of each of the battery cells. The plurality of resistors are divided into a first resistor group and a second resistor group. The first resistor group is connected to a connection point between adjacent capacitors of the plurality of capacitors. The second resistor group is connected to an independent end of the plurality of capacitors. A resistance value of the first resistor group is smaller than a resistance value of the second resistor group.

Abstract: A ground fault detector which does not need complicated circuitry and can detect a ground fault with high accuracy in conformity to a capacitance of a common mode capacitor is presented. Upon judging the ground fault on the basis of a threshold for a high-tension power supply system which is electrically isolated and mounted in a vehicle, a controller in a ground fault detector alters the threshold in conformity to a capacitance of a common mode capacitor of which value is different between a first state that a system main relay is ON and a second state that the system main relay is OFF, thereby judges the ground fault on the basis of the altered threshold. Thus the ground fault detector can adequately detect the ground fault in conformity to the capacitance of the common mode capacitor. Thus the detector can detect the ground fault with accuracy without complicated circuitry.

Abstract: A balustrade device for a conveyor includes at least a holder body, a clamping component assembled to the holder body, and a clamping force applying mechanism. The clamping component has a panel-side pressing surface, and the clamping force applying mechanism has a clamping force action axis intersecting, in vertical cross-sectional view, with the panel-side pressing surface or a plane extending from the panel-side pressing surface. Thus, a high gripping force can be generated in spite of a two-dimensional shape of the balustrade device.

Abstract: A battery monitoring apparatus for monitoring a battery condition of an assembled battery. In the apparatus, a control unit transmits, to a monitoring unit that is powered by the assembled battery and monitors its battery condition, a first mode-switching instruction signal for instructing the monitoring unit to transition from a normal mode to a dark-current mode. Subsequently, the control unit transmits to the monitoring unit a second mode-switching signal for instructing the monitoring unit to transition from the dark-current mode to the normal mode, and acquires an increased count value of a timer circuit in the monitoring unit for a time period from transmission of the first mode-switching instruction signal to transmission of the second mode-switching instruction signal. When it is determined that the increased count value is greater than an abnormality diagnosis criterion value, then the control unit determines that the dark-current mode of the monitoring unit is malfunctioning.

Abstract: A plurality of voltage switching circuits 41 are provided in a switching unit 40 to relatively change a reference voltage to plural levels, thus detecting a spontaneous change of the reference voltage. A range of relative change in the reference voltage by the plurality of voltage switching circuits 41 is set to a usage voltage range 81 or 82 as a part of a total voltage range 80 of each of cells 1a to 1d. This eliminates the need to provide voltage switching circuits 41 required to relatively change the reference voltage over the total voltage range of each of the cells 1a to 1d, making it possible to minimize the number of the voltage switching circuits 41 for each of the cells 1a to 1d. Thus, it is possible to prevent the size of a battery pack control apparatus 2 from increasing.

Abstract: Each monitor IC in the apparatus obtains operation power from a block including cells that are the objects to be monitored. The monitor IC includes a consumption-current adjusting circuit that adjusts a consumption current used from the operation power to a target value. In each monitor IC, the consumption current is adjusted to have the target value by the consumption-current adjusting circuit, and thus the consumption currents of the monitor ICs can be equalized, even if a different number of cells are connected to each monitor IC. Accordingly, it is possible to prevent the variation in the consumption currents among the monitor ICs.

Abstract: A first monitor circuit 50 and a second monitor circuit 60 each having an identical configuration are provided in a voltage monitor. A threshold switching section 41 switches a threshold of each of switching units 51 and 61 provided in the respective monitor circuits 50 and 60 to a same value. Each of comparators 53 and 63 compares the threshold with a reference voltage to output a result of the comparison. A fault detecting section 42 compares the respective outputs from the comparators 53 and 63 with each other to detect a characteristic shift of the threshold of each of the monitor circuits 50 and 60.