Abstract: A battery system avoids an over discharge with a simple sensor element is provided. The battery system comprises: a battery pack including a plurality of battery cells connected in series, a monitoring unit that monitors a condition of the battery pack, and a control unit that controls a discharge of the battery pack. The control unit calculates capacity condition A of the battery pack at a first discharge cutoff voltage based on the total voltage and the total current, estimates capacity condition B of the battery pack at the first discharge cutoff voltage based on the total current and the temperature, determines an occurrence of an over discharge based on the capacity condition A and the capacity condition B, changes the first discharge cutoff voltage to a second discharge cutoff voltage that is higher than the first discharge cutoff voltage, when the occurrence of the over discharge is determined.

Abstract: A computer-implemented method of diagnosing one or more SoXs, such as State-of-Charge (SoC), State-of-Health (SoH), State-of-Energy (SoE), State-of-Power (SoP), State-of-Function (SoF) and State-of-Safety (SoS), of at least one battery, comprises a SoX diagnostics loop, which includes a given battery model, and a model update loop, which is configured to update the battery model, the method comprising: receiving, by the SoX diagnostics loop from at least one sensor, at least one measured battery parameter of the battery, determining, by the SoX diagnostics loop, at least one SoX descriptor of the battery using at least one of the following: at least one SoX parameter, at least one comparison of the at least one SoX parameter: to its previous value, to the at least one another SoX parameter, to the at least one threshold value, wherein the at least one SoX parameter is one of the following: the at least one measured battery parameter, at least one simulated battery parameter provided by the battery model, t

Abstract: A device for electropolishing an energy storage device having at least one lithium-ion cell comprises at least one actuatable first switch which is connected in series to a capacitor and an electrical resistor for current limitation parallel to at least one lithium ion cell, wherein an apparatus for discharging the capacitor is connected in parallel at least to the capacitor (C). The invention further relates to a charger and to a method for operating the charger.

Abstract: Methods for implementing power delivery transactions between a buyer and a seller of electrical energy supplied to an electrical grid by an integrated renewable energy source (RES) and energy storage system (ESS) of a RES-ESS facility are provided. Estimated total potential output of the RES is compared to a point of grid interconnect (POGI) limit to identify potential RES overgeneration, and the buyer is charged if potential RES overgeneration is less than potential overgeneration during one or more retrospective time windows. The method provides a basis for the RES-ESS facility owner to be paid for an estimated amount of energy that did not get stored as a result of a grid operator not fully discharging an ESS prior to the start of a new day.

Abstract: A wireless power delivery system for aircraft seats includes an NFC power receiving device disposed at a known location proximal to floor rail bracket engaging portion of the seat, and an NFC power delivery device engages a corresponding bracket disposed underneath the aircraft floor. The brackets are aligned to each other to ensure the disposition of the NFC power delivery device is sufficiently close to the NFC power receiving device to effectively transfer power. The NFC power delivery device is disposed in a cargo container. Bracket engaging elements in the seat rows include features that indicate a location on a lower bracket to align the NFC power receiving device to the NFC power delivery device.

Abstract: Methods for implementing power delivery transactions between a buyer and a seller of electrical energy supplied to an electrical grid by an integrated renewable energy source (RES) and energy storage system (ESS) of a RES-ESS facility are provided. Estimated total potential output of the RES is compared to a point of grid interconnect (POGI) limit to identify potential RES overgeneration, and the buyer is charged if potential RES overgeneration is less than potential overgeneration during one or more retrospective time windows. The method provides a basis for the RES-ESS facility owner to be paid for an estimated amount of energy that did not get stored as a result of a grid operator not fully discharging an ESS prior to the start of a new day.

Abstract: An electronic watch includes a frame and a cover. The cover is attached to the frame, and the frame and cover at least partially define an interior volume of the electronic watch. An optical sensor assembly including a light emitter and a light receiver is positioned within the inter volume of the frame. An optical barrier is positioned between the optical sensor assembly and the cover and includes a magnetic material that forms a light blocking-wall between the light emitter and the light receiver. The magnetic material is configured to removably couple the electronic watch with a charging device via a magnetic attraction between the magnetic material and a magnetic component of the charging device.

Abstract: A case (100) is provided for housing and charging one or more wireless devices (180), such as wireless earbuds. The case (100) includes capacitive sensing circuitry (120) for detecting whether the wireless devices (180) are positioned inside the case (100) based on a capacitance of the wireless devices (180). The case (100) also includes a transceiver (150) for transmitting data to and receiving data from the wireless devices (180). When the wireless devices (180) are positioned inside the case (100), an electrical component (110) inside the case operatively connects the capacitive sensing circuitry (120) and the transceiver (150) of the case (100) to the wireless devices (180). The case (100) further includes one or more processors (140) for controlling the capacitive sensing circuitry (120), the transceiver (150), and the electrical component (110).

Abstract: An inductive charger where the charging surface or coil is separated from the drive or control electronics is described.

Abstract: In an embodiment, an airport electric vehicle charging system includes a current transducer electrically coupled with a power source; a solid state converter electrically coupleable with an aircraft at or near an airport gate and configured to provide and maintain power to the aircraft; and a controller. The system further includes a first feedback loop between the controller and the current transducer; a second feedback loop between the controller and the solid state converter; and a battery charger electrically coupled with the power source and configured to charge one or more electric vehicles. The first feedback loop provides a first feedback signal generated by the current transducer to the controller. The second feedback loop provides a second feedback signal generated by the solid state converter to the controller. The battery charger is configured to consume power from the power source in accordance with the first and second feedback signals.

Abstract: A charger for impulsed charging of a battery includes first and second charging contacts configured to receive a battery to be charged, a DC power input having first and second terminals, and an inductor having first and second ends. The first end is selectively conductively connectable to the first terminal and the second charging contact. The second end is selectively conductively connectable to the first charging contact and the second terminal. A switch is between the second end and the second terminal such that with the switch in a first configuration, the inductor is connected across the DC power input to enable magnetic energization of the inductor, and in a second configuration, the inductor is disconnected from the DC power input and connected across the charging contacts to enable magnetic energy in the inductor to discharge to the battery. The switch is alternated between configurations during charging of the battery.

Abstract: A system may include a transmitter, a receiver, a cable coupled between the transmitter and the receiver and having two wires for communicating a differential signal from the transmitter to the receiver, and a direct-current (DC) voltage source coupled to a first wire of the two wires of the cable and configured to apply a variable DC offset voltage to the first wire in order to vary an impedance of the cable as a function of the variable DC offset voltage.

Abstract: The present invention relates to a lithium secondary battery, comprising: a negative electrode comprising a negative electrode active material layer comprising a soft carbon negative electrode active material and a byproduct having an average particle size (D50) of 10 to 70 nm; a positive electrode comprising a positive electrode active material; and an electrolyte.

Abstract: An AC charging device for a motor vehicle has a neutral conductor, at least one phase conductor, and at least one rectifier. The neutral conductor and the phase conductor are connected to the rectifier and the rectifier is furthermore electrically connected to at least one smoothing capacitor. The AC charging device includes a precharge circuit arranged between a mains connection of the AC charging device and the smoothing capacitor. The precharge circuit is designed to precharge the smoothing capacitor. The phase conductor, in a connection section, is connected to at least one further phase conductor of the AC charging device by way of a cross-connection line, which has a cross-connection switch for disconnecting the phase conductor and the further phase conductor. The precharge circuit is arranged between a mains connection of a first phase conductor of the phase conductors and the connection section.

Abstract: A power storage device includes an input terminal, an output terminal, a first circuit, and a second circuit. The input terminal is to be electrically connected to a power supply. The output terminal is to be electrically connected to a load. The first circuit and the second circuit are electrically connected in parallel. Each of the first circuit and the second circuit are disposed between the input terminal and the output terminal. The first circuit includes a power storage unit and a discharge path that allows a discharge current from the power storage unit to flow toward the output terminal. The second circuit includes a blocking path that prevents the discharge current from flowing toward the input terminal.

Abstract: An apparatus for estimating a state of charge of a battery, including a sensing unit that measures each of a voltage and a current of the battery, a current integrating unit that calculates a current integration value for a predetermined period, based on the measured current, and a processor operably coupled to the sensing unit and the current integrating unit, the processor adjusts a value of a process noise covariance used by an extended Kalmann filter according to operation characteristics of the battery and estimates a state of charge of the battery based on the adjusted value of the process noise covariance.

Abstract: A method for controlling charging of a high voltage power grid structure of a vehicle is provided. The method includes measuring battery voltage of a vehicle and transmitting the measured voltage to a first charger. Output voltage of the first charger is matched with the transmitted voltage and provided to a charging controller via communication between the charging controller and the first charging port to which the first charger is coupled. The vehicle is then charged by connecting a high-voltage relay to be connected to a first charging port to which the first charger is coupled. The process is repeated while the vehicle is being charged between the charging controller and a second charger by connecting to a second charging port to which a second charger is coupled.

Abstract: Apparatus, systems, and methods for tracking vehicle battery usage with a blockchain. One such method includes detecting, using one or more sensors, one or more operating parameters of a vehicle, at least one of the one or more operating parameters being associated with a battery of the vehicle. A battery-critical event is identified based on the detected one or more operating parameters of the vehicle. Information associated with the detected one or more operating parameters of the vehicle is communicated via a network and to a central server; information associated with the detected one or more operating parameters of the vehicle and the identified battery-critical event is aggregated in a blockchain using the central server. The information associated with the detected one or more operating parameters of the vehicle and the identified battery-critical event is queried from the blockchain to ascertain a usage history of the battery.

Abstract: A hybrid battery charger is disclosed that includes a linear charger circuit for providing vehicle starting current and battery charging and a high frequency battery charging circuit that provides battery charging current. The linear charger circuit and the high frequency battery charging circuits are selectively enabled to provide vehicle starting current, maximum charging current and optimum efficiency.

Abstract: Disclosed are methods and systems for measuring and managing swelling of rechargeable batteries in situ. Some implementations involve using capacity fade or state of health of rechargeable batteries to estimate swelling of the rechargeable batteries. Some implementations provide methods and systems for measuring battery swelling based on inductive or capacitive coupling between sensors and the battery. Some implementations provide means to manage or reduce swelling of rechargeable batteries by applying adaptive charging with consideration of battery swelling.

Abstract: A wireless power transmitter capable of detecting a receiver and a method for the same is described. According to some implementations, the transmitter is configured to detect the presence of the receiver by detecting a change in capacitance in the transmitter by detecting the change in a current flowing through a capacitive circuit at the transmitter. According to some implementations, the capacitive circuit is formed by a first transmission coil corresponding to a first electrode and a second transmission coil corresponding to a second electrode. According to some implementations, the capacitive circuit is formed by a transmission coil as an electrode and a ground, or by the electrode and the receiver circuitry.

Abstract: In some examples, a controller may determine, from among a plurality of energy storage units, a first energy storage unit having a higher than median charge and a second energy storage unit having a lower than median charge. The controller may connect the first energy storage unit to a resonant circuit to transfer energy from the first energy storage unit to the resonant circuit. The controller may then disconnect the first energy storage unit from the resonant circuit, and connect the second energy storage unit to the resonant circuit to transfer energy from the resonant circuit to the second energy storage unit to at least partially balance a charge difference between the first energy storage unit and the second energy storage unit.

Abstract: This application provides a method for detecting a battery state of health. In the method, for a battery that does not supply power to a load within a time period, a detected unit is determined; an open-circuit voltage and a temperature of the detected unit are collected; a battery state of charge value and a loss capacity of the detected unit are obtained by means of calculation; and a battery state of health value of the detected unit is obtained by means of calculation according to a ratio of the loss capacity of the detected unit to an original capacity. This application further provides an apparatus for detecting a battery state of health. By means of technical solutions provided in this application, a deterioration degree of battery performance can be accurately monitored, and impact on a service is avoided.

Abstract: An adapter and a method of controlling a charging process are provided. The adapter includes a power converting circuit and a control circuit. The power converting circuit is configured to convert inputted alternating current to generate output voltage and output current of the adapter, the power converting circuit comprising a secondary filter circuit. The control circuit is coupled to the secondary filter circuit and configured to control the secondary filter circuit to operate when the adapter operates in the first charging mode, so that the adapter outputs constant direct current, and configured to control the secondary filter circuit not to operate when the adapter operates in the second charging mode, so that the adapter outputs an alternating current or a pulsating direct current.

Abstract: A system includes a first hand-held power tool, a second hand-held power tool, and a rechargeable battery of a voltage class. The first hand-held power tool includes a first interface for the rechargeable battery, an electronically commutated electric motor of a defined construction size, a first electronic unit configured to supply the electronically commutated electric motor with power, and a first switch element configured to activate the electronically commutated electric motor. The second hand-held power tool includes a second interface for the rechargeable battery, an electronically commutated electric motor of a defined construction size, a second electronic unit configured to supply the electronically commutated electric motor with power, and a second switch element configured to activate the electronically commutated electric motor. The rechargeable battery is configured for contact with both the first interface and the second interface.

Abstract: A control system is designed or configured to control the state of charge of a battery or battery pack in a system containing a separate power source, which is separate from the battery or battery pack. In operation, the battery or battery pack is called upon to intermittently provide power for certain functions. The separate power source may be, for example, an AC electrical power source for a UPS or an engine of a vehicle such as a micro hybrid vehicle. The battery may be a nickel zinc aqueous battery. The control system may be designed or configured to implement one or more of the following functions: monitoring the state of charge of the battery or battery pack; directing rapid recharge of the battery or battery pack from the separate power source when the battery or battery pack is not performing its functions; and directing charge to fully charged level or a float charge level, which is different from the fully charged level, in response to operating conditions.

Abstract: A method for supplying a number of electric charging stations with electricity, wherein AC voltage provided by an electricity source is transformed into a prescribed AC voltage level by at least one transformer via at least one star winding and at least one delta winding and subsequently routed via AC voltage lines to the number of electric charging stations and converted directly to direct current in respective charging stations from the number of electric charging stations locally by at least two rectifiers of the charging stations.

Abstract: An energy storage apparatus includes: a battery system including at least one battery; a power converting unit converting input/output power characteristics of the battery system into alternating current (AC)-direct current (DC) or DC-AC; a conversion control unit controlling an operation of the power converting unit; an initial driving unit converting DC power of the battery system into AC power and supplying the AC power as power for activating the conversion control unit; and a power selecting unit detecting an output voltage of the power converting unit, selecting, based on a level of the output voltage of the power converting unit, any one of AC power output by the initial driving unit and AC power output by the power converting unit, and supplying the selected AC power as operation power of the conversion control unit.

Abstract: A battery charging method and corresponding apparatus include charging a battery based on an initial charging operation, and verifying whether a change event, with respect to a charging operation, occurs based on the charging of the battery. The battery charging method and corresponding apparatus also include changing the charging operation to an adjusted charging operation in response to verifying that the change event, with respect to the charging operation, occurs. The change event includes a physical quantity event in which a physical quantity of the battery sensed during a charging rest time of the initial charging operation is greater than or equal to a threshold physical quantity.

Abstract: Systems and methods for authenticating, authorizing, and/or accounting for a power-consuming device to access a power source are described. A power access controller can manage the power source and authenticate and/or authorize the power-consuming device to access the power source based on, for example, a power profile of the power-consuming device. The power profile can indicate categories of devices for the power-consuming device, the manufacturer of the power-consuming device, and/or the device's expected power consumption. Accounting of an amount of power consumed by the power-consuming device can also be performed.

Abstract: A battery charging method and apparatus are provided. A setting value of charging control information is determined based on an overpotential value and a voltage value of a battery and is applied in the charging control information, and a voltage applied to charge the battery is controlled based on the charging control information that applies the setting value.

Abstract: A terminal can include a battery (11), a temperature detection circuit (13), a control circuit (14) and a heating apparatus (15), wherein the control circuit detects a temperature of the battery via the temperature detection circuit, and if the temperature of the battery is detected to be less than a first threshold, the control circuit keeps a charging loop for charging the battery disconnected and controls the heating apparatus to heat the battery; and if the temperature of the battery is detected to be greater than or equal to the first threshold, the control circuit controls the charging loop to be conducted for charging the battery. A heating apparatus and a charging method for a battery are also provided.

Abstract: The present invention belongs to the communications field, and discloses a radio signal processing apparatus and method, and a terminal. This not only can avoid wasting resources, but also can fully use a received radio signal, thereby improving usage of using a received radio signal.

Abstract: Systems and methods provide LED-based emergency lighting utilizing AC-DC switch mode power conversion technology, NiMH battery technology, and emergency lighting lamps that use high power white LEDs as the emergency lighting source. A low voltage microprocessor based circuit design reduces the battery input voltage for the unit to a nominal level of 2.4VDC. The microprocessor executes a pulse charging algorithm to lower battery maintenance mode power consumption levels and extend the useful life of the battery. Brownout detection technology does not require the determination of the AC input voltage level or transmission of the brownout detection signal to the secondary side of the circuit. A rechargeable battery is charged by a charge current selectively set to a bulk charge value, a trickle charge high value, or a trickle charge low value based on sampling of the voltage of the rechargeable battery and the charge current.

Abstract: A multiport connector and a power control method are provided. The multiport connector comprises a power output port and multiple power input ports. The power output port is connected to an electronic device. The power input ports are connected to multiple power adapters to form multiple power transmission paths. Each power transmission path comprises a power line, a detecting circuit and an impedance component connected to the detecting circuit in series. Therefore, when the electronic device is connected to the multiport connector, the electronic device detects the equivalent impedance formed by the impedance components on the detecting circuits to adjust an upper limit of load power.

Abstract: Lithium-ion battery charging method for correcting and compensating voltage, when it is charged to limited charge voltage of the battery, the battery stops charging, or start charging by constant-voltage charging and won't stop charging until the charging current is lower than 50%-99.99% of the current before constant-voltage charging; the limited charge voltage of the battery positive and negative electrodes is set as 3U0?US?USO; the battery would be rapidly charged and charged close to saturation, and have better cycle life than the battery charged by constant-current and constant-voltage charging method of the same charging rate; or with the same cycle frequency, the battery charged with the charging method of the present invention would have larger discharge capacity.

Abstract: A system, method, and non-transitory computer readable medium provide for an energy storage controller. The system includes battery, a charging circuit, and an energy storage controller (ESC) coupled to the battery and the charging circuit. The battery stores and expends energy with an electrical grid. The charging circuit regulates a rate of energy stored in the battery. The ESC receives controller inputs; determines a control error of the battery based the controller inputs used in a charging controller echo state network (ESN); determines a model error of the battery based on the controller input used in a battery model ESN; and adjusts the regulated rate of energy that the charging circuit stores in the battery based on the control error and the model error.

Abstract: An adapter and a method for charging control are provided. The adapter includes a power converting unit, a sample and hold unit, a current acquisition and control unit. The power converting unit is configured to convert an input AC to obtain an output voltage and an output current of the adapter, and the output current of the adapter is a current of a first pulsating waveform. The sample and hold unit is connected to the power converting unit, and is configured to sample the current of the first pulsating waveform when the sample and hold unit is in a sample state and hold a peak value of the current of the first pulsating waveform when the sample and hold unit is in a hold state. The current acquisition and control unit is connected to the sample and hold unit.

Abstract: An inverter device that includes an inverter circuit that converts power between DC power and multi-phase AC power; a drive circuit that transfers a drive signal to each of a plurality of switching elements that form the inverter circuit to cause a switching element of the plurality of switching elements to perform turn-on, in which the switching element is caused to transition from an off state to an on state, and turn-off, in which the switching element is caused to transition from the on state to the off state; and a current detection circuit that detects a current that flows through each of the plurality of switching elements.

Abstract: This disclosure relates to a method for operating a battery of a motor vehicle, wherein parameters are continuously monitored by means of a system of the motor vehicle, said parameters representing the state of the battery, and at least one risk minimizing strategy that includes measures for changing the battery situation is implemented if an evaluating unit of the system generates an alarm signal on the basis of a parameter that is being monitored.

Abstract: An electric power supply system for a vehicle includes a first battery, a second battery connected in parallel with the first battery, a voltage sensor configured to detect a voltage value of the second battery, a current sensor configured to detect a current value of the second battery, an electronic control unit configured to make a voltage of the alternator fluctuate according to a predetermined voltage waveform, and calculate internal resistance of the second battery using the voltage value and the current value of the second battery respectively detected by the voltage sensor and the current sensor while the electronic control unit is making the voltage of the alternator fluctuate according to the predetermined voltage waveform.

Abstract: One embodiment pertains to a method including determining if external power is supplied to a power system which includes a DC-DC voltage converter; if external power is not supplied to the power system, then turn on a switching transistor in the DC-DC voltage converter and provide battery power to the load through the switching transistor; if external power is supplied to the power system, then charge a battery.

Abstract: The disclosure relates to a vehicle electrical system for a motor vehicle. The vehicle electrical system comprises: a low-voltage sub-system for at least one low-voltage load; a high-voltage sub-system for at least one high-voltage load; and a starter/generator; wherein the high-voltage sub-system is connected to the low-voltage sub-system by means of a coupling unit designed to draw energy from the high-voltage sub-system and to feed said energy to the low-voltage sub-system, wherein the high-voltage sub-system has a battery, which is designed to produce the high voltage and to output the high voltage to the high-voltage sub-system and which has at least two battery units having individual voltage taps, which are led to the coupling unit. The coupling unit is designed to selectively connect the battery units to the low-voltage sub-system. The disclosure further relates to a motor vehicle, comprising an internal combustion engine and such a vehicle electrical system.

Abstract: An electronic unit includes: a power receiving section configured to receive electric power fed from a feed unit by using a magnetic field; and a control section configured to perform, when a receiving current supplied from the power receiving section is less than a predetermined threshold current at a time of a light load, current increasing control to increase the receiving current to the threshold current or more.

Abstract: An electronic unit includes an electricity reception section that receives power transmitted using one of a magnetic field and an electric field, a secondary battery that is charged based on a received power received by the electricity reception section, and a state notification section that provides notification to outside as to a state of its own unit. A charging period during which the secondary battery is charged based on the received power and a non-charging period are set in a time-divisional manner. The state notification section notifies of the unit state based on the received power in both of the charging period and the non-charging period.

Abstract: In an embodiment a device comprises an output port configured to output an output voltage and an output current, a measurement module configured to measure the output current, and a controller configured to set an output voltage at a first level, receive a first measured output current, set an output voltage at a second level receive a second measured output current, compare the first measured output current and the second measured output current, increase the output voltage if the second measured output current is less than the first measured output current, and decrease the output voltage if the second measured output current is the same as or greater than the first measured output current.

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 battery single charger may accommodate Li-type and Ni-type batteries, having default charge settings and user-adjustable charge parameters in an ‘advanced mode’. Lithium Polymer (LiPo) batteries equipped with RFID technology and integrated balance taps may communicate with a device such as a battery charger equipped with similar technology providing information such as chemistry type, cell count, recommended charge rates, number of charges on the battery, among other types of information. Several safety features may be included.

Abstract: An embodiment of the invention relates to a charging device for charging an at least partially electrically operated vehicle. The charging device is formed with at least one electrical component and a switching device. The at least one electrical component and the switching device are arranged in the charging device in such a way that when the charging device is connected to a vehicle a circuit is produced for assisting the discharging of at least one capacitor provided on the vehicle side, the capacitor being openable or closable via the switching device.

Abstract: An apparatus for flexible DC fast charging of an electrified vehicle includes a charge receptacle and a vehicle charging controller programmed to establish a wireless communication with a charging station. The apparatus further includes a reconfigurable energy storage system selectively and electrically connected to the charge receptacle. The reconfigurable energy storage system includes a first rechargeable energy storage device selectively and electrically connected to the charge receptacle, a second rechargeable energy storage device selectively connected to the charge receptacle, and a plurality of low-loss switching devices selectively connected to the first rechargeable energy storage device and the second rechargeable energy storage device.