Abstract: The present teaching provides a power supply system capable of fully utilizing a plurality of batteries having different performances. A power supply system disclosed here includes a main line, a plurality of sweep modules, and a controller. Each of the sweep modules includes a battery module and an electric power circuit module. The electric power circuit module includes a switching device for connecting a connection state between the battery modules and the main line between connection and disconnection. The controller performs sweep control of sequentially switching the battery module connected to the main line among the plurality of battery modules. During an input of electric power from outside, the controller disconnects the battery module whose SOC level satisfies a high SOC condition from the main line (S7), and continues sweep control (S8, S9).

Abstract: A power supply system includes a plurality of sweep modules. Each sweep module includes a battery module, an input and output circuit, a switching element, a capacitor, and a line. The input and output circuit connects the battery module to a main line. The switching element switches between connection and disconnection between the battery module and the main line. The capacitor is attached in parallel to the battery module. The line connects the input and output circuit to the battery module. The line is maintained in a state in which a loop portion is formed.

Abstract: The present teaching provides a power supply system capable of appropriately performing replacement or repairing of a component of a module where a problem occurs without stopping the entire operation, in a case where the problem occurs in of the module in a plurality of modules. The power supply system includes a plurality of sweep modules, a problem detector, an indicator, and a controller. Each sweep module includes a battery module and an electric power circuit module. The problem detector detects a problem for each sweep module. The indicator indicates a sweep module in which a problem is detected. In a case where a problem is detected in the sweep module (S4: YES), the controller causes the indicator to indicate a failure sweep module in which the problem is detected (S5). The controller disconnects the failure sweep module from a main line, and continues sweep control (SG through S8).

Abstract: A power supply of a vehicle includes a first switching element, a second switching element, a third switching element, a first battery, a reactor element, a second battery, a smoothing capacitor, and a controller. When the connection state of the first battery and the second battery is switched from the series connection state to the parallel connection state, the controller is configured to perform a transition control so that a voltage of the smoothing capacitor is decreased to the higher of a voltage of the first battery and a voltage of the second battery, and perform a switching control to turn on the first switching element after a diode of the first switching element is energized.

Abstract: Provided is a power supply device which includes a plurality of battery modules each having a secondary battery and in which the battery modules are connected in series with one another according to a gate driving signal from a controller. An SOC control target value that is a target value for states-of-charge of the battery modules is changed according to the number of the battery modules that are available to be connected in series.

Abstract: A power supply device includes a plurality of battery modules, the battery modules are connected to one another in series according to a gate driving signal from a controller, the power supply device delays the gate driving signal in a gate driving signal processing circuit included in each of the battery modules, and thereafter, transmits the gate driving signal from an upstream to a downstream of the series connection, and the power supply device controls the battery modules by superimposing a control signal for the battery module on the gate driving signal.

Abstract: There is provided a power supply device including a plurality of battery modules, the battery modules being connected in series with one another according to a gate driving signal from a controller, the power supply device transmitting the gate driving signal from upstream of the series connection toward downstream of the series connection after the gate driving signal is delayed at delay circuits included in the respective battery modules, and returning the gate driving signal to the controller from a most downstream battery module, wherein the power supply device performs malfunction determination of the delay circuits based on a time difference from a transmission time of a signal from the controller to a reception time of the signal.

Abstract: A power supply system includes a controller, and a plurality of battery modules. The battery modules are connected in series, according to a gate drive signal from the controller, to provide series connection, and each of the battery modules has a disconnecting device configured to force the battery module to be disconnected from the series connection. The controller is configured to estimate the internal resistance of the battery module disconnected from the series connection by the disconnecting device, from a module voltage of the battery module before the battery module is disconnected from the series connection, a module voltage immediately after the battery module is disconnected, and a module current delivered from the battery module.

Abstract: Provided is a power supply device which includes a plurality of battery modules and in which the battery modules are connected in series with one another in accordance with a gate driving signal from a controller. The power supply device includes a disconnecting part configured to forcibly isolate the battery module from a series connection regardless of the gate driving signal, and limits, in accordance with a target output voltage value, a number of the battery modules to be forcibly isolated by the disconnecting part.

Abstract: In a power supply device including a plurality of battery modules each including a secondary battery, in which the battery modules are connected in series to one another according to a gate driving signal from a controller and in each of the battery modules, the gate driving signal is delayed in a gate driving signal processing circuit included in the battery module and then transmitted from upstream to downstream of the series connection, an ID is provided for each of the battery modules by transmitting an ID setting signal for providing an ID unique to the battery module using a gate signal line for transmitting the gate driving signal.

Abstract: A power supply device of a vehicle includes a negative electrode terminal connected to a first battery; a positive electrode terminal connected to a second battery; a first positive electrode side relay between a first node and the first battery; a first capacitor connected between the first node and a negative line; a first negative electrode side relay between the first battery and the negative line; a first precharge relay and a first resistive element connected in parallel with the first negative electrode side relay; a second positive electrode side relay between a third node and the second battery; a second capacitor between the third node and a second node; a second negative electrode side relay between the second battery and the second node; and a second precharge relay and a second resistive element connected in parallel with the second positive electrode side relay.

Abstract: Provided is a full-charge-capacity estimating device that has one or more of a plurality of battery modules, as battery-modules-to-be-measured, charged or discharged by means of a first switch element and a second switch element according to whether a power supply device is in a powering state or a regenerating state, measures an integrated current value and a change in the state-of-charge of the battery-module-to-be-measured, and then estimates the full charge capacity of the battery-module-to-be-measured from the integrated current value and the change in the state-of-charge.

Abstract: A battery system according includes a secondary battery, a temperature sensor and a controller. The secondary battery includes a power generation element configured to perform charging and discharging, an electrolyte, and a battery case. The electrolyte is impregnated inside the power generation element. The power generation element and the electrolyte is housed in the battery case. The temperature sensor is configured to specify a temperature of the secondary battery. The controller is configured to calculate a deviation in salt concentration in the electrolyte. The controller is configured to calculate a first flow velocity and a second flow velocity at each position in the power generation element in the flow direction of the electrolyte using an equation defining a flow of the electrolyte. The first flow velocity is a flow velocity when the electrolyte flows from an inside of the power generation element toward an outside of the power generation element.

Abstract: A power supply device is provided with a disconnection means (AND element) for forcibly disconnecting a battery module from a series connection regardless of a gate signal. The power supply device forcibly disconnects partial battery modules from the series connection by the disconnection means (AND element) during powering by a power supply output, thereby performing control so that the accumulated discharge current amounts thereof per unit time become smaller than those of the other battery modules.

Abstract: A relative maximum point and a relative minimum point, are provided in a first reactor current and a second reactor current within one control cycle as a result of control of on and off of switching elements. At least one of the inflection points in the first and second reactor currents, a plurality of switching elements to simultaneously be turned on or and off are controlled to be turned on or off in a prescribed order with a time lag being set. At the inflection point with the time lag being set, a switching loss is produced in a switching element turned on later or a switching element turned on earlier in accordance with the prescribed order.

Abstract: A power supply device includes battery circuit modules each having a battery, a first switching element S1 connected in parallel to the battery, and a second switching element S2 connected in series to the battery between the battery and the first switching element S1, the second switching element S2 being turned off when the first switching element S1 is turned on, a battery circuit module group in which the battery circuit modules are connected in series, and a control circuit for outputting, at intervals of a certain time, a gate signal for turning on and off the first switching element S1 and the second switching element S2 to the battery circuit modules.

Abstract: An environment adjustment system includes an acquisition unit configured to acquire environmental information of an environment related to a user, a drafting unit configured to draft an action plan to recommend to the user based on the environmental information, a transmission unit configured to transmit the action plan to the user's terminal, and a confirming unit configured to confirm whether the user has performed the action plan. When the drafting unit drafts a new action plan for another user or for the user, it drafts the new action plan using a result of the confirmation by the confirming unit.

Abstract: A traveling energy distribution system includes a plurality of supply facilities each of which is able to supply traveling energy to a vehicle, an information acquisition unit configured to acquire, from a vehicle, vehicle information relevant to an amount of traveling energy remaining in the vehicle and acquire, from each of the plurality of supply facilities, supply facility information relevant to an amount of traveling energy that can be supplied from that supply facility, and a determination unit configured to determine a transfer source supply facility and a transfer destination supply facility for traveling energy to be transferred from among the plurality of supply facilities and determine an amount of the traveling energy to be transferred based on the vehicle information and the supply facility information acquired by the information acquisition unit.

Abstract: A storage battery module rental system includes a storage battery module prepared in each providing point that is dispersedly distributed and that can be rented to a user, an acquisition unit configured to acquire individual information of a plurality of the users and module information from the storage battery module, the user being a rentee candidate of the storage battery module, a determining unit configured to determine an incentive given for renting the storage battery module based on the individual information and the module information in such a way that the incentive could differ for each user; and a notifying unit configured to notify the user of the incentive determined by the determining unit for each of the users.

Abstract: A core has first to third magnetic leg portions. First and second windings wound on the first and second magnetic leg portions, respectively, are connected in series to constitute a first reactor. A third winding wound on the third magnetic leg portion constitutes a second reactor. A magnetic field produced from the first reactor and a magnetic field produced from the second reactor reinforce each other in the second magnetic leg portion, but weaken each other in the first magnetic leg portion. In accordance with increase in currents, the operation of the first and second reactors changes from a magnetically uncoupled mode in which the first and second reactors operate in a magnetically non-interfering state to a magnetically coupled mode in which the first and second reactors operate in a magnetically interfering state.