Abstract: A car control device includes a driving force calculating unit that calculates driving force necessary for a train to travel; an operating number calculating unit that determines the number of M cars to be operated on the basis of the driving force; and a driving force command calculating unit that calculates driving force commands to be given to the M cars that operate depending on the number of M cars to be operated, wherein the driving force command calculating unit continuously changes the driving force commands when the number of M cars to be operated changes.

Abstract: A deteriorated capacity calculator calculates a deteriorated capacity that is a capacity reduced from the capacity of a cell in an initial state. A gas amount calculator calculates an amount of gas contained in a container for the cell, from the deteriorated capacity. A pressure calculator calculates a pressure inside the container for the cell from the amount of the gas, a volume of a void space of the container for the cell and the temperature of the cell. A pressure monitor outputs a control signal for stopping charging or discharging of the battery when the pressure inside the container for at least any one cell is equal to or greater than a threshold pressure.

Abstract: Battery cells are disposed apart from each other in a housing of a battery module included in a power storage device. In the battery module, a partition member is provided that divides a space in the housing into a high temperature region, which contains battery cells located centrally in a disposal direction of the battery cells, and a low temperature region, which contains battery cells located at end portions in the disposal direction of the battery cells. The cooling air flow supplied from a fan passes between the battery cells in the high temperature region, passes through ventilation holes provided in the partition members, enters the low temperature region, passes between the battery cells in the low temperature region, passes through a discharge hole, and flows outside of the housing.

Abstract: A car control device includes a driving force calculating unit that calculates driving force necessary for a train to travel; an operating number calculating unit that determines the number of M cars to be operated on the basis of the driving force; and a driving force command calculating unit that calculates driving force commands to be given to the M cars that operate depending on the number of M cars to be operated, wherein the driving force command calculating unit continuously changes the driving force commands when the number of M cars to be operated changes.

Abstract: A deteriorated capacity calculator calculates a deteriorated capacity that is a capacity reduced from the capacity of a cell in an initial state. A gas amount calculator calculates an amount of gas contained in a container for the cell, from the deteriorated capacity. A pressure calculator calculates a pressure inside the container for the cell from the amount of the gas, a volume of a void space of the container for the cell and the temperature of the cell. A pressure monitor outputs a control signal for stopping charging or discharging of the battery when the pressure inside the container for at least any one cell is equal to or greater than a threshold pressure.

Abstract: A storage battery deterioration measurement device and a power storage system are provided which measure deterioration in unit batteries included in an assembled battery constituting a storage battery in a shorter time than conventional devices and systems, and which include a control unit to acquire information based on the states of the multiple unit batteries and a deterioration determination unit to detect the unit battery indicating the maximum value among the information acquired by the control unit and the unit battery indicating the minimum value thereamong, and to detect deterioration in the unit batteries on the basis of the difference between a per-predetermined-period variation of information on the unit battery indicating the maximum value and a per-predetermined-period variation of information on the unit battery indicating the minimum value.

Abstract: A battery internal state estimation apparatus including: an internal state estimation unit, which inputs at least one of measured values obtained by a battery measurement unit at preset sampling intervals including a current flowing through a battery, an inter-terminal voltage, a temperature of the battery, and an ambient air temperature, for estimating, based on the measured values, at least one of a state of charge, internal temperature, capacity, and internal resistance of the battery as an internal state of the battery; and an internal state correction unit for correcting estimated values of the internal state obtained by the internal state estimation unit so that the estimated values are not contradictory at least to qualitative properties of the battery, and outputting the corrected values to an output unit.

Abstract: A hybrid-vehicle power generator control apparatus includes an integrated control unit that issues a driving command and a control command to an engine control unit and an electric-power conversion system control unit, respectively, based on requested electric power requested by a load apparatus, and a limiter that limits the control command from the integrated control unit such that when rotation frequency of an electric power generator is same as or lower than a predetermined value, the value of torque generated by the electric power generator becomes smaller than the value of torque generated by an engine. A limitation of the control command by the limiter prevents torques of the engine and the electric power generator from stepping out of the stable operating points.

Abstract: Battery cells are disposed apart from each other in a housing of a battery module included in a power storage device. In the battery module, a partition member is provided that divides a space in the housing into a high temperature region, which contains battery cells located centrally in a disposal direction of the battery cells, and a low temperature region, which contains battery cells located at end portions in the disposal direction of the battery cells. The cooling air flow supplied from a fan passes between the battery cells in the high temperature region, passes through ventilation holes provided in the partition members, enters the low temperature region, passes between the battery cells in the low temperature region, passes through a discharge hole, and flows outside of the housing.

Abstract: A DC/DC conversion device that includes three-level power conversion circuits in a plurality of phases. The DC/DC conversion device includes voltage detectors 21 and 22 that detect at least two voltages (Efc and EfcL) of an input DC voltage, a first divided voltage, and a second divided voltage; and a voltage control unit 3 that controls an output voltage of three-level power conversion circuits 12a and 12b. At least one phase (the power conversion circuit 12b) of the three-level power conversion circuits 12a and 12b operates as an imbalance-reduction phase that executes imbalance-reduction control such that one (EfcL) of the first and second divided voltages is divided into half of the input DC voltage Efc.

Abstract: A controller of a battery monitoring apparatus, said controller calculating the amount of heat generated inside a battery on the basis of information about the electric current which flows out of or flows into the battery. Furthermore, the controller calculates the amount of heat discharged from the surface of the battery, said amount being calculated on the basis of temperature information about at least one from among the surface of the battery and a substance in the vicinity of the battery. In addition, the controller calculates the temperature inside the battery on the basis of information about the amount of heat generated, and information about the amount of heat discharged.

Abstract: A resistance calculation activator determines whether or not an electric car is stopped on the basis of a drive command signal and an external signal, and activates a resistance calculator if a powering command is input as the drive command when it is determined that the electric car is stopped. The activated resistance calculator computes, within a resistance calculation period, a resistance value of an AC motor that produces driving force for the electric car, on the basis of a d-axis voltage command value and a d-axis current value supplied to the AC motor.

Abstract: In a host controller included in a vehicle control apparatus, a generator-torque-command generating unit monitors an abnormal operation of the engine on the basis of an engine power generation command and a detection signal of a rotating speed detector, switches, when the abnormal operation of the engine is detected, a generator torque command to the lowest value of a torque command value for abnormal time set in advance as the generator torque command, thereafter, gradually increases the generator torque command, and, after recording, as a torque limit value, the magnitude of the generator torque command (a torque command value for abnormal time 3) at the time when the abnormal operation of the engine is detected again, switches the generator torque command to a torque command value for abnormal time (a torque command value for abnormal time 2) having a value smaller than the torque limit value.

Abstract: A power converter fixes, in one cycle of an alternating-current voltage output command, a gate pulse signal to always output a direct-current input positive side terminal voltage value of an inverter circuit in a period X1 centering on a phase angle ?1 for higher potential, fixes a gate pulse signal to always output a direct-current input negative side terminal voltage value of the inverter circuit in a period X2 centering on a phase angle ?2 for lower potential, and outputs a gate pulse signal in which a ratio of a period Y1, which is obtained by excluding the periods X1 and X2 from a period between the phase angle ?1 and the phase angle ?2, and the first period X1, and a ratio of a period Y2, which is obtained by excluding the periods X1 and X2 from a period between the phase angle ?2 and a phase angle ?1+360 [deg].

Abstract: A storage battery deterioration measurement device and a power storage system are provided which measure deterioration in unit batteries included in an assembled battery constituting a storage battery in a shorter time than conventional devices and systems, and which include a control unit to acquire information based on the states of the multiple unit batteries and a deterioration determination unit to detect the unit battery indicating the maximum value among the information acquired by the control unit and the unit battery indicating the minimum value thereamong, and to detect deterioration in the unit batteries on the basis of the difference between a per-predetermined-period variation of information on the unit battery indicating the maximum value and a per-predetermined-period variation of information on the unit battery indicating the minimum value.

Abstract: Switches change the resistance value of a charge/discharge circuit in a period from starting a discharging at an upper limit voltage until the voltage reaches a lower limit voltage. An electric charge estimator computes electric charge by time-integrating current from a start of the discharging to an arbitrarily determined time, and computes a relationship between electric charge and voltage of a power storage device. An internal resistance estimator computes internal resistance based on voltages and currents of the storage device at times when resistance values are different. An electric energy estimator computes a relationship between electric charge and open voltage based on electric charge, voltage, current and internal resistance of the storage device. During charging or discharging of the storage device, the electric energy estimator estimates the electric energy of the power storage device based on the electric charge, the open voltage, the internal resistance, and the charge/discharge current.

Abstract: An over temperature protection device for electric motors applicable to a railway vehicle driving system that operates a plurality of electric motors in parallel using one or a plurality of inverter devices includes a control device configured to control the operation of an inverter device and a protecting device configured to detect, on the basis of a frequency fs including frequency information at the time when the inverter device is applying control for fixing a ratio of a voltage and a frequency to electric motors and electric currents of at least one phase flowing to the electronic motors, an over temperature that could occur in the electric motors, to generate an over temperature protection signal Tf for protecting the electric motors from the over temperature, and to output the over temperature protection signal Tf to the control device.

Abstract: A power-generation control unit controls the amount of power a generator can generate, when it is connected to an engine, by controlling a converter that converts AC power output by the generator to DC power. The power-generation control unit calculates a rotational-speed command value ?c_ref1 for the generator on the basis of a differential voltage value ?Vdc between a DC-voltage command value Vdc_ref for a power storage device and a DC voltage Vdc of a DC link portion; and executes a PWM control on an output of the converter on the basis of this rotational-speed command value ?c_ref1 such that the rotational speed ?c of the generator follows the rotational-speed command value ?c_ref1 and also such that the DC voltage Vdc follows the DC-voltage command value Vdc_ref so as to prevent overvoltage.

Abstract: Switches change the resistance value of a charge/discharge circuit in a period from starting a discharging at an upper limit voltage until the voltage reaches a lower limit voltage. An electric charge estimator computes electric charge by time-integrating current from a start of the discharging to an arbitrarily determined time, and computes a relationship between electric charge and voltage of a power storage device. An internal resistance estimator computes internal resistance based on voltages and currents of the storage device at times when resistance values are different. An electric energy estimator computes a relationship between electric charge and open voltage based on electric charge, voltage, current and internal resistance of the storage device. During charging or discharging of the storage device, the electric energy estimator estimates the electric energy of the power storage device based on the electric charge, the open voltage, the internal resistance, and the charge/discharge current.

Abstract: A high-order control unit provided in a control device for a hybrid vehicle includes an elevation MAP that is used in common for up and down lines and in which at least two predetermined elevation values on a running track are described, and an energy estimation unit that estimates a target charge/discharge amount SOC_ref with respect to a power storage device on the basis of a traveling direction signal Rev expressing a traveling direction of a vehicle, distance information Dis from a distance translation unit, and information on the elevation MAP, to control a power generation device on the basis of the target charge/discharge amount SOC_ref.