Abstract: The present invention discloses a battery module and a power arrangement method. The battery module includes a battery unit, an energy storage element, a switch, a functional circuit and a control unit. The energy storage element is coupled to the battery unit. The switch is coupled to the energy storage element. The functional circuit is respectively coupled to the battery unit and the energy storage element. The control unit is respectively coupled to the functional circuit and the switch, configured to control the functional circuit to cause the energy storage element to be coupled to the battery unit so that the battery unit charges the energy storage unit, or configured to control the functional circuit to cause the energy storage element to be decoupled with the battery unit so that a discharge path is formed.

Abstract: A configuration instruction associated with configuring a plurality of batteries which supply power to a plurality of motors in a vehicle is received. The batteries are configuring as specified by the configuration instruction, where the batteries are able to be configured in a plurality of configurations, including: a first configuration where at least some of the batteries are electrically connected together in parallel and a second configuration where at least some of the batteries are electrically connected together in series.

Abstract: A method of operating an electric power system, which may include: determining a charge state of a first battery unit and a charge state of a second battery unit; determining a difference between the charge state of the first battery unit and the charge state of the second battery unit; and determining whether to enable discharging simultaneously of both the first battery unit and the second battery unit, or to enable discharging of one of the first and second battery units, based on the difference between the charge state of the first battery unit and the charge state of the second battery unit. At least one of the first and second battery units may be a swappable battery unit. The disclosure further relates to an electric power system and to a computer executable code including instructions for operating an electric power system.

Abstract: The present disclosure relates to a battery management device for balancing state of charges (SOCs) of a plurality of battery cells while maintaining a substrate temperature of a substrate to which a balancing resistor of each of a plurality of battery cells is mounted to a reference temperature or below. Since the substrate temperature is maintained at the reference temperature or below by controlling the duty cycle of a balancing switch, it is possible to prevent components included in the battery management device from being overheated and damaged due to the heat generated during the balancing process.

Abstract: An electronic device may include, for example: a first battery; at least one second battery; a power management module configured to monitor capacity information of the first battery; and a processor electrically connected to the first battery, the at least one second battery, and the power management module. The processor may be configured to: monitor whether a designated event or a low-power state in which a voltage of the first battery drops below a reference value has occurred, while the electronic device is driven using the first battery; determine that the designated event has occurred or that the first battery corresponds to the low-power state; and parallel-connect the first battery and at least one of the at least one second battery, based on determining that the designated event has occurred, or that the first battery corresponds to the low-power state. Various other embodiments are possible.

Abstract: A vehicle onboard power supply system, supplying a consumer with electrical energy, includes a first voltage detection device (55) detecting a voltage level in a line area (51) between an input terminal (34) of a first circuit breaker (26) and a first battery (16), a second voltage detection device (57) detecting the voltage level in a line area (53) between an input terminal (42) of a third circuit breaker (30) and a second battery (18), a third voltage detection device (58) detecting the voltage level in the area of a consumer connection line (12). An overvoltage detection device (62) detects an overvoltage in the area of the consumer connection line based on the voltage level detected by the third voltage detection device and switches the first circuit breaker and the third circuit breaker into open states when overvoltage is detected in the area of the consumer connection line.

Abstract: An energy store (14a) has at least three energy storage sections (u, v, w) and at least two switching elements. Each energy storage sections (u, v, w) has multiple energy storage modules and each energy storage module has at least one energy storage element that receives and stores energy from an energy source (12). The energy store (14a) is connected to a first coil (50) so that a voltage induced in the first coil (50) is used to charge the energy storage elements. The energy store (14a) is matched to properties of the voltage provided by the first coil (50) by switching the switching elements. As a result, the energy storage modules of an energy storage section (u, v, w) are connected in parallel and/or in series with one another and/or at least one energy storage module of at least one energy storage section (u, v, w) is bypassed.

Abstract: Systems, methods, and apparatus for providing a homopolar generator charger with an integral rechargeable battery. A method is provided for converting rotational kinetic energy to electrical energy for charging one or more battery cells. The method can include rotating, by a shaft, a rotor in a magnetic flux field to generate current, wherein the rotor comprises an electrically conductive portion having an inner diameter conductive connection surface and an outer diameter conductive connection surface, and wherein a voltage potential is induced between the inner and outer diameter connection surfaces upon rotation in the magnetic flux field. The method can also include selectively coupling the generated current from the rotating rotor to terminals of the one or more battery cells.

Abstract: A power storage device 20 comprises: a plurality of power storage elements C1-C6 that are connected in series; energy transfer circuits 40 provided respectively to the plurality of power storage elements C1-C6; a common bus 50 to which the energy transfer circuits 40 of the plurality of power storage elements C1-C6 are commonly connected; and a control device 70. Each energy transfer circuit 40 includes one or a plurality of switching transformers Tr, each switching transformer having a first winding 41A that is connected to the power storage elements C1-C6 and a secondary winding 41B that is connected to the common bus 50. The control device 70 uses the switching transformers Tr of the energy transfer circuits 40 to transfer energy between the power storage elements via the common bus 50, thereby equalizing the voltages of the power storage elements C1-C6. The common bus 50 is in an electrically floating state.

Abstract: A vehicle power supply apparatus includes first and second power supply systems, an electrical conduction path, a switch, and a switch controller. The first power supply system includes a first electrical energy accumulator and an electric load. The second power supply system includes a generator and a second electrical energy accumulator. The switch is configured to be controlled to a turn-on state and a turn-off state. The turn-on state includes coupling the electric load and the second electrical energy accumulator to each other, and the turn-off state includes isolating them from each other. The switch controller controls the switch to the turn-on state on the condition that the generator has an abnormality, and afterwards controls the switch to the turn-off state.

Abstract: An electronic device includes a first connection unit, a second connection unit, and a control unit. The control unit determines whether a first external device is connected to the first connection unit, and controls the electronic device to prevent charging of a battery connected to the first external device with power supplied from a second external device connected to the second connection unit, in a case where the first external device is connected to the first connection unit.

Abstract: A battery includes: a first terminal; a second terminal; a plurality of individually housed batteries; a plurality of switches configured to connect ones of the individually housed batteries to and from ones of the first and second terminals; and a switch control module configured to: at a frequency, vary a voltage applied to a gate of one of the switches, the one of the switches configured to connect at least one of the individually housed batteries to one of the first and second terminals; and diagnose whether a fault is present in the one of the switches based on a voltage across the one of the switches.

Abstract: A DC-DC converter includes an output-side storage capacitor arrangement which has a parallel circuit formed of an electrolytic capacitor, a ceramic capacitor and a circuit arrangement. The circuit arrangement has a series circuit formed of a hybrid electrolytic capacitor and a suppressor diode as well as a resistance connected in parallel with the hybrid electrolytic capacitor.

Abstract: A secondary battery protection circuit for protecting a secondary battery with multiple connected-in-parallel cells, includes a charging fault detection unit for each cell for prohibiting charging of the corresponding cell when overcharging and/or charging over-current for the corresponding cell is detected; a charging control element for each cell for cutting off a charging path for the corresponding cell when the charging of the corresponding cell is prohibited; a detection resistor for each cell inserted in series in the charging path; and a balance control unit for, in order to balance a first charging current flowing in a first charging path for a first cell with a second charging current flowing in a second charging path for a second cell, controlling a difference between the first and second charging currents in a saturation region of the charging control element based on a detection voltage generated by the detection resistor.

Abstract: The present disclosure provides methods and circuits of a hybrid converter family that allows using a combination of a switched multiple capacitor network and a number of inductors in order to a power conversion from an input to an output that may require a large conversion ratio, high output current, low output voltage, and/or high input voltage. The disclosed circuits and methods can be applied to today's switching regulators and allow them to provide the same power conversion function with less number of power conversion stages, smaller passive components, and less number of active components, and therefore, reduce the implementation space to save cost as well as improve efficiency. Sample applications include, but are not limited to, point-of-load power converters for data centers, telecommunication systems and other high-performance electronic systems.

Abstract: Systems and methods for providing federated power management in an electronic circuit. The methods comprise: performing first operations by a processing device to obtain information indicating a current level of charge for each of a plurality of capacitors which have been supplied energy from a power source; transforming, by the processing device, each capacitor's current level of charge into a number of service units for a respective electronic load device of a plurality of electronic load devices; determining, by the processing device, at least one of recharging priorities for the plurality of capacitors and discharging priorities for the plurality of capacitors at least based on the results of said transforming; and performing second operations by the processing device to cause the plurality of capacitors to be recharged in accordance with the recharging priorities or discharged in accordance with the discharging priorities.

Abstract: A modular battery storage system includes energy storage modules. A switch is assigned to individual energy storage modules, by which the respective energy storage module can be activated and deactivated. The energy storage modules can connect to one another by the switches such that the individual voltages of activated energy storage modules can be added up to form a total voltage. A method of operating the battery storage system ascertains at least one power value for each of the energy storage modules, the power value being characteristic of the power capacity of the energy storage module. A total voltage is generated by at least two energy storage modules being activated with a time overlap but over activation periods of different length. One of the activation periods of different length is assigned to each of the at least two energy storage modules depending on the ascertained at least one power value.

Abstract: A plurality of electronic devices including batteries and being connected to each other may respectively include battery managing apparatuses that may enable the electronic devices to share power of the batteries included in the electronic devices, more particularly, battery managing apparatuses that may change a mode or a manner to connect the batteries to the electronic devices by comparing states of charge (SoCs) of the batteries.

Abstract: The present invention is directed to a battery charger for charging a battery pack. The battery charger includes a plurality of components including a power supply. The battery charger also includes a temperature sensor that senses the temperature of at least one of the plurality of battery charger components, for example a transformer. The battery charger power supply is adjusted based on the temperature of the at least one of the plurality of battery charger components.

Abstract: A vehicle power supply apparatus includes first and second power supply systems, an electrical conduction path, first and second switches, and an abnormality determination unit. The first power supply system includes a first electrical energy accumulator and an electric load. The second power supply system includes a generator and a second electrical energy accumulator. The first switch is provided on the electrical conduction path between the first and second power supply systems. The second switch is provided in the second power supply system. The abnormality determination unit determines whether or not the generator is in an abnormal state, on the basis of a current of the first or second electrical energy accumulator, with the first switch or the second switch, or both turned on, and with a power generation command outputted to the generator.

Abstract: A system for discharging or charging a capacitor of a hybrid vehicle according to the present disclosure includes a target state of charge (SOC) module and a capacitor charge/discharge module. The target SOC module determines a target state of charge of the capacitor based on a speed of the vehicle. The capacitor charge/discharge module determines whether a state of charge of a capacitor is greater than a target state of charge. The capacitor charge/discharge module dissipates power from the capacitor to at least one of a battery of the vehicle and an electrical load of the vehicle when the state of charge of the capacitor is greater than the target state of charge.

Abstract: A battery pack and a method of inhibiting failure of a battery pack. The battery pack may generally include a housing; a battery cell supported in the housing and electrically connectable to an electrical device, power being transferrable between the battery cell and the electrical device; a resistor supported in the housing and operable to receive current from the battery cell; and an electronic processor configured to detect a failure condition of the battery pack, and, in response to detecting the failure condition of the battery pack, cause the battery cell to discharge through the resistor.

Abstract: A method for autonomously interconnecting at least two battery banks in a drive system of a motor vehicle, the drive system comprising at least one electric motor, at least two battery banks, at least one traction system which can be supplied with power by at least one battery bank, and at least one DC/DC converter which can be connected to at least one battery bank. The battery banks can be interconnected with one another in series and/or in parallel and at least one battery bank can be bridged, wherein, during autonomous operation of the motor vehicle, respective interconnection of the at least two battery banks is automatically carried out within the drive system, depending on a respective operating state of the motor vehicle.

Abstract: A charging-discharging module of the energy storage unit is provided. The charging-discharging module of the energy storage unit includes a first energy storage unit; a second energy storage unit; a first switching unit electrically connected to a first terminal of the second energy storage unit; a selecting circuit electrically connected to a first terminal of the first energy storage unit and the first switching unit to selectively conduct the first energy storage unit or the second energy storage unit to a system circuit; and a processing unit electrically connected to the first switching unit. A charging and discharging method is also provided.

Abstract: An electric power supply system includes a first battery provided in an electric power supply circuit; a second battery provided in the circuit and electrically connected in parallel to the first battery, the second battery being a lithium-ion battery; an electric load provided in the circuit and electrically connected in parallel to the first battery and the second battery; a switch provided in the circuit, and configured to electrically disconnect the second battery from the circuit when the switch is open; and a control device configured to open the switch when an ignition switch is on and an SOC of the first battery is equal to or higher than a prescribed SOC, and to execute an open-circuit voltage acquisition process that acquires an open-circuit voltage of the second battery after a lapse of a prescribed time from a time when the switch is opened.

Abstract: The power storage device includes a battery group in which n series circuits C1 (wherein n represents an integer of 2 or greater) are connected in parallel and a battery controller controlling a switching device based on allowable charge/discharge power of the capacitor. The series circuit C1 includes a capacitor and the switching device which are connected in parallel. The battery controller controls the switching device to maximize the allowable charge/discharge power of the battery group.

Abstract: In general, techniques are disclosed for providing short circuit protection to a battery pack having a number of battery cells, at least some of which are connected in parallel. Short circuit protection is provided by using pairs of electronic switches (e.g., integrated circuits consisting of a pair of transistors designed as battery charge/discharge switches) serially connected between one terminal of a battery cell and a battery pack's common node—a position which is upstream of conventional battery pack fault controllers. The state of all such switches may be controlled by a control unit that is also upstream of a conventional fault controller. The combination of switch pairs and control unit can provide a battery pack with over current (short circuit) protection without the use of thermal cutoff devises. The described devices and systems can also provide over voltage, under voltage and over temperature protection.

Abstract: A battery assembly includes a battery having first and second electrodes and an electrolyte. A controller is operatively connected to the battery. The controller includes a processor and tangible, non-transitory memory on which is recorded instructions for executing a method for estimating a charge acceptance capability of the battery. Interaction of the electrolyte and at least one of the first and second electrodes produces a discharge product. The controller is programmed to quantize and track both accumulation and removal of the discharge product when at least one enabling condition is met. The controller is programmed to initialize a timer when the enabling condition is met and increment the timer by a calculation time interval (?t).

Abstract: An electrical system with replaceable batteries comprises an electrical system and a combined switch. The electrical system comprises a plurality of battery packs (1, 2, 3); all the battery packs are independently arranged each other; and an electric-quantity display device which is used for displaying the electric-quantity information indicating signals of the battery packs and a gear switch which is used for mutually switching the battery packs are arranged on the combined switch. Each battery pack comprises a battery (A1, A2, A3), a power switches (B1, B2, B3) and a battery management system (C1, C2, C3). The battery management systems receive and combine the output signals of the combined switches with the electric-quantity information indicating signals, thereby controlling whether the power switches are closed to provide power output or not.

Abstract: Systems and methods for charging a plurality of battery strings are provided. The individual string current of each of the individual battery strings can be monitored and used to regulate a charging output provided by the charger. For instance, the output voltage of charger can be controlled as part of a closed loop control system based on the individual string current of the battery string under the constraint of an individual string current limit and/or a charging voltage limit. As the charging voltage of the charger increases as a result of the closed loop control based on the individual string current, other battery strings can be coupled to the charger when the charging voltage provided by the charger exceeds a battery string voltage associated with the battery string.

Abstract: A method for regenerating a nickel metal hydride battery is provided. The nickel metal hydride battery includes a hydrogen absorbing alloy that serves as a negative electrode material and a safety valve that opens when an internal pressure of a battery case is greater than or equal to a predetermined pressure. The method includes connecting a plurality of nickel metal hydride batteries in parallel. Each nickel metal hydride battery is formed by integrating one or more battery cells. The method further includes overcharging the nickel metal hydride batteries by supplying current from a charge unit that is connected in parallel to the nickel metal hydride batteries. The method further includes, when each nickel metal hydride battery is overcharged, restoring a discharge reserve of a negative electrode by releasing at least some of an oxygen gas generated at a positive electrode out of the battery case through the safety valve.

Abstract: An electronic device is provided including: a display for displaying a UI element; a processor for processing an application; a Printed Board Assembly (PBA) having the processor mounted thereon, and arranged to be substantially parallel to the display; a main battery which supplies power to the electronic device, and is rechargeable and detachable; an auxiliary battery for supplying power to the electronic device; a first frame which houses the main battery, fixes the PBA, and is arranged to be substantially parallel to the display; a second frame for fixing the display and the first frame; and a cover coupled to the second frame, wherein the first frame includes a hole for housing the auxiliary battery, and the electronic device can receive power supplied from the auxiliary battery when power supply from the main battery is terminated.

Abstract: A metric is received for each battery sub-module in a plurality of battery sub-modules in order to obtain a plurality of metrics associated with the plurality of battery sub-modules. One or more battery sub-modules are selected from the plurality of battery sub-modules to electrically connect to a common power bus. The selected battery sub-modules are configured so that the selected battery sub-modules are electrically connected to the common power bus. The selected battery sub-modules that are electrically connected to the common power bus are charged.

Abstract: An electric starting system for an internal combustion engine is provided. The starting system includes a rechargeable battery including two voltage output terminals and an enable terminal, a battery receiver including a battery receptacle configured to receive the rechargeable battery, two voltage output terminals, and an enable terminal, a starter motor configured to start the internal combustion engine, and a continuous duty electrical load. The voltage output terminals of the lithium-ion battery and the battery receiver are configured to connect to complete a circuit between the rechargeable battery and the continuous duty electrical load when the rechargeable battery is attached to the battery receptacle.

Abstract: Provided is a battery device high in safety and ease of use, which has no difficulty in returning to a normal state after discharge overcurrent is detected. The battery device includes a first charge/discharge control device including a first charge/discharge control transistor, and a first charge/discharge control circuit configured to detect the voltage of a secondary battery to control charging and discharging; a second charge/discharge control device including a second charge/discharge control transistor connected to an external terminal via the first charge/discharge control transistor, and a second charge/discharge control circuit configured to detect the voltage of the secondary battery to control charging and discharging; and a switch circuit arranged between an overcurrent detection terminal of the second charge/discharge control circuit and the external terminal. The switch circuit is turned on with a discharge stopping signal of the second charge/discharge control circuit.

Abstract: A multiple battery charger is provided. The multiple battery charger includes an input unit configured to receive or block power from a power supply unit, an output unit including a plurality of output terminals, wherein the plurality of output terminals are commonly connected to the input unit and charge a plurality of batteries, and wherein each of the plurality of output terminals includes at least one of a plurality of second switches for a selective receipt of the power from the input unit and the plurality of output terminals are controlled in a time division multiple control manner, and a switching control unit configured to transmit a pulse width modulation signal to the input unit and the output unit so as to independently control the power applied to the plurality of batteries. Accordingly, a plurality of different kinds of batteries and the same kind of batteries in which charge states are different can be simultaneously charged.

Abstract: A method for performance analysis and use management of a battery module is disclosed, wherein the battery module includes a multitude of interconnected battery cells and a battery management system with a plurality of dedicated analysis/control units (ACUs) that analyze performance of the battery module, the ACUs being assigned to individual battery cells and/or battery blocks of battery module. The method includes measuring current and voltage of one or more of an individual battery cell and a battery block; calculating a charge removal from the one or more of the individual battery cell and the battery block; calculating a loading charge of the one or more of the individual battery cell and the battery block; determining the remaining charge of the one or more of the individual battery cell and the battery block; and failure monitoring of the one or more of the individual battery cell and the battery block.

Abstract: An insulation rib is provided above a charging circuit and a plurality of heat radiation ribs are provided on the left side of the charging circuit. A space part is formed by the insulation rib. Little of the heat generated by the charging circuit is transferred to an upper sidewall portion of a case main body portion due to a heat insulation effect of the space part. Further, heat generated by the charging circuit is likely to be transferred to a left sidewall portion of the case main body portion due to a high heat dissipation effect of the heat radiation ribs. In this way, the generation of locally heated areas in the case main body portion can be reduced through balancing of the flow of heat generated by the charging circuit.

Abstract: A battery assembly mounted on a hybrid electric vehicle is provided that prevents thermal runaway caused by overcharging. The battery assembly includes a battery having a plurality of cells and a protection switch disposed opposite to the battery. A relay is configured to turn on or off according to an operation of the protection switch and a PRA (power relay assembly) is connected between the relay and the battery.

Abstract: A current equalizer is provided for first and second battery elements connected in parallel to supply a DC link. A first constant resistance carries a first current from the first battery element to the DC link. A first variable resistance is connected in parallel with the first constant resistance. A second constant resistance carries a second current from the second battery element to the DC link. A second variable resistance is connected in parallel with the second constant resistance. A balancer inversely adjusts the first and second variable resistances in response to relative magnitudes of the first and second currents. As a result, the total currents supplied from each battery element to the DC link are equalized because the effective total resistance in series with each battery element compensates for the difference in the internal battery resistances.

Abstract: Systems and methods for charging a plurality of battery strings are provided. The individual string current of each of the individual battery strings can be monitored and used to regulate a charging output provided by the charger. For instance, the output voltage of charger can be controlled as part of a closed loop control system based on the individual string current of the battery string under the constraint of an individual string current limit and/or a charging voltage limit. As the charging voltage of the charger increases as a result of the closed loop control based on the individual string current, other battery strings can be coupled to the charger when the charging voltage provided by the charger exceeds a battery string voltage associated with the battery string.

Abstract: An electricity supply system comprises: a battery module, a control module, and a distribution box. The battery module includes at least two in-series modules, each comprising at least two battery groups connected in series. The control module is connected with the battery module and includes an IGBT module, a relay module, and a relay control module. The relay module includes a plurality of relays K. Each in-series module is connected to the relay module. The relay module is connected to the IGBT module. The relay control module is configured for controlling ON or OFF of each relay K so as to select an in-series module to work with the IGBT module. The distribution box is connected with the control module.

Abstract: A plug-in hybrid electric vehicle includes an internal combustion engine driving a pair of wheels on a first axle and a transmission drivingly connecting the internal combustion engine and the wheels on a first axle. An integrated starter-generator is mounted on the internal combustion engine crankshaft between said internal combustion engine and the transmission. The vehicle further includes an electric motor driving a pair of wheels on a first axle and a main battery pack connected to a further electric motor arranged to supply electric power for driving the wheels on a second axle. The electric drive means can comprise one electric motor driving the second axle via a differential, two electric motors each driving one half of the second axle or two electric wheel motors for the respective wheels on the second axle. An additional battery is connected to the integrated starter-generator for starting the engine.

Abstract: An electrical storage system includes an electrical storage device, a motor, a system main relay, a first charging line, a charger, a first charging relay, a second charging line, an inlet, a second charging relay and a controller. The controller is configured to control a energizing state and a non-energizing state of the system main relay, the first charging relay and the second charging relay. The controller is configured to cause the first charging relay to the non-energizing state when the second charging relay in the energizing state is subjected to adhesion.

Abstract: Remaining capacity calculation section (110) calculates remaining capacities for each of cells (300-1) and (300-2) connected in parallel with each other, and control section (130) discharges one of cells (300-1) and (300-2) having priority until the remaining capacity of that cell becomes equal to a second threshold value stored in storage section (120), if the remaining capacity of the one of the cells calculated by remaining capacity calculation section (110) is equal to a first threshold value stored in storage section (120).

Abstract: The power supply system includes a first DC power source, a second DC power source, and a power converter having a plurality of switching elements and reactors. The power converter is configured to be switchable, by the control of the plurality of switching elements, between a parallel connection mode in which DC voltage conversion is executed with the DC power sources connected in parallel with a power line and a series connection mode in which DC voltage conversion is executed with the DC power sources connected in series with the power line. Each of the switching elements is arranged to be included both in a power conversion path between the first DC power source and the power line PL and a power conversion path between the second DC power source and the power line.

Abstract: A method of operating a battery charger electrically connected with a power distribution circuit having a power line and return line includes determining at least one of a temperature and a change in temperature of at least one of the power line and return line, and controlling a current through the power line based on the at least one of temperature and change in temperature.

Abstract: In an electrical storage device management system, a control part monitors the temperatures of electrical storage cells. In electrical storage systems that are in a charging/discharging operating state, if the temperature of any of the electrical storage cells has reached a first threshold temperature, the control part switches an electrical storage system that includes this electrical storage cell to a non-charging/discharging state. The control part also switches one of the electrical storage systems that is in the non-charging/discharging state, to the charging/discharging operating state.

Abstract: An electric storage device protection apparatus includes switches arranged between an electric device and an electric storage device and connected in parallel to each other, a rectifier component connected in series to one of the switches between a pair of common connection points of the switches, and a controller. The controller is configured to make the switch connected to the rectifier component to be in the open state when determining that a voltage of the electric storage device is within a reference range, and make the switch that is connected to the rectifier component to be in the closed state and make another one of the switches to be in the open state when determining that a voltage of the electric storage device becomes outside the reference range due to a current flowing in a reverse direction of the rectifier component.

Abstract: A vehicle has a motor and an engine each serving as a driving source for running the vehicle, and assembled batteries each capable of supplying an electric power to the motor. The assembled batteries include a high-power assembled battery and a high-capacity assembled battery. The high-power assembled battery is capable of charge and discharge with a current relatively larger than that in the high-capacity assembled battery, and the high-capacity assembled battery has an energy capacity relatively larger than that of the high-power assembled battery. In running of the vehicle using an output from the motor with the engine stopped, the high-capacity assembled battery supplies a more electric power to the motor than that in the high-power assembled battery. The high-power assembled battery is placed in a riding space where a passenger rides, and the high-capacity assembled battery is placed in a luggage space different from the riding space.