Abstract: A state-of-charge estimation device and a state of charge estimation method are provided that estimate a state of charge in a battery having a large polarization, requiring a long time for depolarization, and having a large charge/discharge hysteresis in its SOC-OCV characteristics. The state-of-charge estimation device includes a voltage measuring unit which measures a closed circuit voltage in a battery, a charge estimation unit which estimates a state of charge in a charge mode by referring to charge mode information that associates a closed circuit voltage with a state of charge in the battery, and a discharge estimation unit which estimates a state of charge in a discharge mode by referring to discharge mode information that associates a closed circuit voltage generated by use of a discharge pattern of the battery with a state of charge in the battery by use of the measured closed circuit voltage.

Abstract: A state-of-charge estimation device includes a transition estimation unit, when a transition from a charge mode to a discharge mode starts, which starts current integration by use of a measured current and obtains a second state of charge by use of a first state of charge at the start of the transition and a current integration value, so as to estimate that the second state of charge is a state of charge upon transition until a target state of charge is reached that is determined by a current integration value obtained for a predetermined time period after the start of the transition, and/or when a transition from a discharge mode to a charge mode starts, which starts current integration by use of a measured current and obtains a sixth state of charge by use of a third state of charge at the start of the transition and a current integration value.

Abstract: A battery system monitoring apparatus for monitoring a cell group having a plurality of battery cells, and includes a cell controller IC which monitors and controls the states of the plurality of battery cells. A battery controller controls the cell controller IC and a plurality of voltage detection lines measure the voltage across the terminals of the battery cell. The voltage detection lines connect positive and negative electrodes of the battery cell, respectively, to a plurality of voltage input terminals of the cell controller IC. A power line connects the positive electrode of the battery cell having the highest potential among the plurality of battery cells to a power supply terminal of the cell controller IC and a ground line which connects the negative electrode of the battery cell having the lowest potential among the plurality of battery cells to a ground terminal of the cell controller IC.

Abstract: Disclosed are a wearable device and a terminal. The wearable device includes: a wearable component and a power supply component fixed on the wearable component. The power supply component includes a first supporting surface, an energy conversion element and an energy storage element. The energy conversion element includes: a magnetic structure, an elastic structure and an induction coil. One end of the magnetic structure is connected to the first supporting surface through the elastic structure. The magnetic structure moves with respect to the induction coil through the elastic structure when the wearable device is shaken, such that an alternating current is generated in the induction coil. The energy storage element is adapted to store electric energy obtained by the energy conversion element.

Abstract: A charging device includes a main control circuit, a connecting interface, a power supply circuit and a detecting circuit. When an energy storage element connects to the charging device, the connecting interface is coupled to two terminals of a temperature control element. The power supply circuit is coupled to the connecting interface and the main control circuit. The detecting circuit is coupled to the connecting interface. When the energy storage element connects to the charging device, the detecting circuit generates a detecting signal being used to trigger the power supply circuit to provide a main operating voltage to the main control circuit. When temperature of the energy storage element exceeds a threshold, the temperature control element makes the detecting circuit not to generate the detecting signal, so the power supply circuit ceases to provide the main operating voltage to the main control circuit.

Abstract: A battery balance management circuit includes an active and passive testing balance bus, a plurality of battery sets, a primary charging converter, a secondary charging system, an electrical load and a battery management system. An external balance management mechanism is utilized to compensate for current loss of the battery set, effectively enabling the battery sets to provide stable large current output.

Abstract: A computer is programmed to upon determining that a battery charge level of a battery of a vehicle is below a first threshold, determine a first fuel quantity for an engine to charge the battery to a second threshold; and actuate a vehicle component according to the first fuel quantity. The computer may transmit a message specifying a second fuel quantity that is a sum of a preset fuel quantity and the first fuel quantity. The computer may, upon determining that an ambient temperature is below a temperature threshold, provide an instruction to the engine to charge the battery to the second threshold.

Abstract: A photovoltaic electric vehicle charging system includes an enclosure to receive photovoltaic panels and the photovoltaic panels connected to each other via a plurality of connecting members inside the enclosure. A sliding mechanism moves panels in and out of the enclosure and the enclosure is configured to be mounted on a vehicle or embedded within the vehicle.

Abstract: An inverter includes an arm circuit, a first capacitor, a second capacitor, a first diode, and a second diode. In the arm circuit, upper arm switching elements to which a positive electrode of a battery is connected and lower arm switching elements to which a negative electrode of the battery is connected are connected. The first capacitor has one end connected to the positive electrode of the battery. The second capacitor is connected between another end of the first capacitor and the negative electrode of the battery. The first diode has a cathode electrode connected to the connection point between the upper arm and lower arm switching elements. The second diode has a cathode electrode connected to another end of the first capacitor. Power is supplied from an external power supply to an anode electrode of the first diode and an anode electrode of the second diode.

Abstract: A non-contact power supply device on which a power-feeding object device can easily and appropriately be placed, and a non-contact power transmission device including the power-feeding object device. The non-contact power transmission device includes a non-contact power supply device having a power feeding coil, a housing that houses the power feeding coil, and a bobbin around which the power feeding coil is wound. The housing has a concave part at least partially accommodating a power-feeding object device. The concave part has a curved surface at least in a portion of an inner surface on which the power-feeding object device is placed. The curved inner surface of the concave part prevents the power-feeding object device from standing upright. A portable electronic device serving as the power-feeding object device is at least partially accommodated in the concave part.

Abstract: A charging device includes an electrically chargeable vehicle and a stationary charging station. In order to establish a galvanic connection between the vehicle and the charging station, the vehicle and the charging station each include at least two electrical contacts being in mutual contact for establishing the galvanic connection between the vehicle and the charging station. The contacts are each elongate. The contacts have specified lengths that are less than the width of the vehicle. The contacts of the vehicle are disposed in a fixed manner on the vehicle. The contacts of the charging station are movable at least vertically. The mutually complementary contacts are disposed in such a way that the contacts extend transversely to each other in a predefined charging position of the vehicle for establishing of the galvanic connection.

Abstract: An electric vehicle includes a charging circuit and a control device. The control device is configured to set a charging current value by increasing the charging current value over time while a voltage of a battery of the charging circuit increases so that a load resistance value of the charging circuit is constant in a constant-resistance charging mode, at the time of continuing charging of the battery. The control device is configured to initiate the constant-resistance charging mode based on a determination by the control device that an SOC of the battery or the voltage of the battery is at or above a predetermined threshold value, or based on an input from a user. The control device is configured to initiate a constant-power control charging mode in which charging power of the charging circuit is constant.

Abstract: A power storage apparatus includes a first storage module, a second storage module, a charge-discharge circuit, and circuitry. The first storage module includes a first detector to detect first current input to and output from the first capacitor. The second storage module includes a second detector to detect second current input to and output from the second capacitor. The charge-discharge circuit is connected to the first capacitor and the second capacitor to charge and discharge the first capacitor and the second capacitor. The circuitry is configured to control the charge-discharge circuit to control charging and discharging between the first capacitor and the second capacitor. The circuitry is configured to determine whether or not at least one of the first detector and the second detector is to be corrected based on the first current and the second current during charging and discharging between the first capacitor and the second capacitor.

Abstract: A vehicle includes an electric power storage device, a charging inlet, an electric power reception device, and a controller. The controller is configured to start charging the electric power storage device when the time reaches a set time set in advance in a case where scheduled charging control that starts charging the electric power storage device at the set time is planned to be executed in a state in which electric power is receivable through either the charging inlet or the electric power reception device. The controller is configured to execute the contacted charging control by suppressing execution of the scheduled charging control that starts the contactless charging control, when the charging connector is connected to the inlet in a case where the scheduled charging control that starts the contactless charging control at the set time is planned to be executed.

Abstract: A medical computer cart is equipped with an inductive receiver coil. The inductive receiver coil may, for example, be associated with a power management system adapted to use electrical power induced in the receiver coil to charge one or more batteries and/or provide power for operation of the medical computer cart. A charging station has an inductive charging transmitter coil corresponding to the inductive charging receiver coil in the medical computer cart. The inductive receiver coil may, alternatively, provide power for operation of the medical computer cart without the use of batteries.

Abstract: A vehicle includes a power converter electrically coupled to an auxiliary battery and an electrical load. A vehicle voltage control system includes a controller programmed command an output voltage of the power converter to a voltage that is a maximum of target voltages associated with electrical loads that are electrically coupled to the auxiliary battery and activated, a battery charging voltage when a demand for auxiliary battery charging is present, and a float voltage associated with the auxiliary battery.

Abstract: A power adaptor (100) includes a power conversion unit (110) and a power line (121). The power conversion unit (110) charges a terminal (200) via the power line (121). The power adaptor (100) further includes a communication unit (130) and a data line (122). When the power adaptor (100) is coupled to the terminal (200), the communication unit (130) communicates with the terminal (200) via the data line (122). The power adaptor (100) charges the terminal (200) still using the power line (121). Furthermore, when the power adaptor (100) is coupled to the terminal (200), the power adaptor (100) communicates with the terminal via the data line (122). Compared with the method of data and power time-division multiplexing the power line, the heating phenomenon of the power line caused by an excessively high load of a signal isolation unit can be effectively avoided.

Abstract: The present invention relates to an apparatus for preventing a battery including a master battery and a slave battery from being over-charged, the apparatus including: a master battery management system (BMS) which determines whether the master battery is over-charged, and turns off a main relay which connects or disconnects between the battery and a motor of a vehicle when the master battery is over-charged as a result of the determination; and a slave BMS which determines whether the slave battery is over-charged, and turns off a charging relay which connects or disconnects between the battery and a charger provided outside the vehicle when the slave battery is over-charged as a result of the determination.

Abstract: A battery monitoring apparatus capable of reducing power consumption. At least one monitoring integrated circuit (IC) is electrically connected to a high-voltage battery formed of a plurality of cells and configured to monitor the high-voltage battery in a plurality of modes of operation. A low-voltage power supply circuit can deliver power of a lower voltage than the power of the high-voltage battery to the at least one monitoring IC. A power supply to the at least one monitoring IC is selected from a group of the high-voltage battery and the low-voltage power supply circuit depending on the mode of operation the at least one monitoring IC.

Abstract: Systems and methods for limiting battery discharge based on battery temperature are disclosed. In an example, a controller sets a current limit, using battery temperature, and provides corresponding current limits to a power management device and a system-on-chip (SOC). Upon battery discharge current exceeding the discharge current limit, the controller increases the discharge current limit, and provides updated current limits to the PM device and the SOC. Upon the battery temperature exceeding a battery pack maximum temperature, the controller issues a shutdown command to the PM device and the SOC.