Abstract: Disclosed is a method and apparatus for charging a battery, the method includes a method of charging a battery, the method including determining an aging rate coefficient based on an internal state of the battery and an aging parameter related to aging of the battery, predicting an aging rate of the battery based on the aging rate coefficient, and determining whether to change a charging limit condition to charge the battery based on a comparison between the predicted aging rate and a target aging rate.

Abstract: A battery management apparatus according to an embodiment of the present disclosure includes a profile obtaining unit configured to obtain a gas amount profile indicating a correspondence relationship between a gas generation amount of a battery and a change amount of a peak; a profile generating unit configured to generate a differential profile for a battery profile indicating a correspondence relationship between a capacity of the battery and a differential voltage; and a control unit configured to determine a change amount of a target peak in the battery profile received from the profile generating unit and set a usage condition of the battery based on a result determined by comparing the determined change amount of the target peak with a control criterion of the gas amount profile.

Abstract: A charge control device calculates a learning command value of a charging parameter used in a learning phase, operates a charger in the learning phase to control the charging parameter to the learning command value, calculates a learning temperature rise rate, based on the temperature of the secondary battery, calculates a charging-time temperature rise rate in a charging phase that follows the learning phase, prior to the start of the charging phase, based on a limit temperature of the secondary battery and a duration of the charging phase, calculates a charging command value of a charging parameter which is used during a period from the start to the end of the charging phase, based on the learning command value, the learning temperature rise rate, and the charging-time temperature rise rate, and operates the charger in the charging phase to control the charging parameter to the charging command value.

Abstract: This application is directed to methods and systems for providing electrical charge to a vehicle. The system can include a generator configured to generate an electrical output based on a mechanical input responsive to a rotation of a driven mass. The system can include an ultracapacitor module configured to receive energy from the generator. The system can include an energy retainer configured to receive energy from the ultracapacitor module or from the generator. The system can include a traction motor configured to receive energy from the energy retainer or from the ultracapacitor module.

Abstract: A battery system includes: first and second positive terminals and a negative terminal; switches; at least two battery modules, each of the battery modules including at least three strings of battery cells configured to, at different times be: connected in series and to the first positive terminal via first ones of the switches; connected in parallel and to the second positive terminal via second ones of the switches; and disconnected from both of the first and second positive terminals; and a switch control module configured to: receive temperatures of the strings of battery cells, respectively; determine temperatures of the battery modules, respectively, based on the temperatures of the strings of battery cells of that battery module; and selectively actuate the switches based on at least one of: minimizing an error between the temperatures of the strings of battery cells; and minimizing an error between the temperatures of the battery modules.

Abstract: An energy storage device for storing electrical energy. A housing frame of the energy storage device has respective housing end walls on two opposite end faces of the housing frame. The energy storage device has at least one battery cell stack. Respective stack end plates are arranged on two opposite end faces of the battery cell stack, which end plates are fastened in the housing frame of the energy storage device and by which end plates the battery cell stack is subjected to a compressive pressure. The stack end plates are aligned parallel to the housing end walls. At least one of the stack end plates is separated from a housing end wall located opposite to it by a space free of a battery cell stack.

Abstract: A direct current fast charge (DCFC) system and associated method that lower standby power dramatically when the DCFC system is not in operation, and that provide a reset capability for communication needs. The DCFC system utilizes an appropriate load disconnection switch and an associated control and communication circuit, timer circuit, and automatic turn on system. This improves the reliability of the electronics by removing voltage stress during the standby mode. The DCFC system prevents energy waste, and therefore provides a “green” alternative to conventional DCFC systems.

Abstract: An example printing device comprises at least one moving module, which includes a profile assembly and a slider assembly. The profile assembly includes two guiding members that are spaced from each other, and the two guiding members respectively have a first guiding groove and a second guiding groove arranged in a preset direction. The slider assembly includes a slider body and an elastic member, where the slider body is in contact with the groove wall of the first guiding groove and is slidably connected in the preset direction; and the elastic member is fixedly connected with the slider body and is in contact with the groove wall of the second guiding groove and is slidably connected in the preset direction. The elastic member can deform to make the slider body press tightly against the corresponding guiding member, so that the printing device can improve its printing quality.

Abstract: The present disclosure discloses a method for charging and discharging control, and a device. The method can be applied to a device. The device includes a first battery unit and a second battery unit which are connected in series, and a balance module. The second battery unit supplies power for the device. The method includes, when the voltage of the second battery unit is equal to or less than a first preset voltage threshold, transferring the power in the first battery unit to the second battery unit through the balance module, such that the voltage of the second battery unit is greater than the first voltage threshold.

Abstract: A charging controller carries out charging control of a power storage mounted on a vehicle. The vehicle includes a DC charging inlet. The charging controller carries out first charging control when a charging cable which is not a prescribed charging cable is connected to the DC charging inlet and carries out second charging control when the prescribed charging cable is connected to the DC charging inlet. For example, a time period for ground fault detection carried out during charging of the power storage is set differently between first charging control and second charging control. Alternatively, a response delay margin of a charging command is set differently between first charging control and second charging control.

Abstract: An electric power system includes a vehicle on which a power storage device is mounted, a charging and discharging system that exchanges electric power between the vehicle and a facility external to the vehicle, a photovoltaic power generation device that supplies electric power generated using sunlight to the charging and discharging system, and a controller that stops the charging and discharging system based on any of a first condition, a second condition, and a third condition. The first condition is related to the amount of electric power exchanged between the power storage device and the facility, the second condition is related to a time when the power generated by the photovoltaic device is less than a threshold, and the third condition is related to an electricity rate.

Abstract: A device for achieving dynamic charging and balance of battery cells is disclosed. The device is configured for monitoring a plurality of battery voltages from a plurality of battery cells in a multi-cell battery pack. In case of a battery voltage difference between two of the battery cells being greater than a pre-determined voltage difference, the device generates a plurality of balance charging currents for charging the battery cells. In which, each of the balance charging currents is calculated based on remaining charge time, measured battery voltage, and rated battery capacity. Thus, in a charge cycle, one balance charging current for charging the battery cell with low battery voltage is designed to be greater than another one balance charging current for charging the battery cell with high battery voltage. Consequently, elimination of the battery voltage difference existing between any two of the battery cells is achieved.

Abstract: An energy storage system, to improve operating efficiency and system reliability that exist when a component in the energy storage system is faulty, and avoid a waste of resources. The energy storage system includes a plurality of energy storage branches, at least one switch unit, and a control circuit. Each of the energy storage branches includes a first bus, a string-level converter, and a battery string that are sequentially connected in series, a plurality of balancing converters, and a shared bus. The battery string includes a plurality of battery units connected in series, and each of the battery units includes one battery pack. The battery pack is connected to an input side of one corresponding balancing converter, and output sides of the plurality of balancing converters are separately connected to the shared bus.

Abstract: A system for charging an electric vehicle in a facility includes a current sensor adapted to obtain an input current signal for a power source in the facility. An electric vehicle supply equipment (EVSE) is configured to charge the electric vehicle through the power source based at least partially on a control pilot signal. A controller has a processor and tangible, non-transitory memory on which instructions are recorded for dynamically adjusting the control pilot signal based on the input current signal. The control pilot signal is set to a predefined maximum when the input current signal is less than a main circuit breaker rating of the facility. The controller is configured to reduce the control pilot signal from the predefined maximum when the input current signal is at or above the main circuit breaker rating.

Abstract: A system for conductively charging a motor vehicle includes a charging device and a receiving device. The charging device has an electrical contacting unit and a lifting device operable for axially moving the contacting unit between retracted and extended positions. The receiving device has a receiving chamber for receiving the contacting unit inserted therein when the contacting unit is moved to an extended position. The contacting unit has a cylindrical or truncated cone body and includes an electrical contact ring extending around a lateral surface of the body of the contacting unit. The receiving device includes a radially position-able electrical contact element along the receiving chamber. When the contact element is in one radial position while the contacting unit is inserted into the receiving chamber the contact element electrically contacts the contact ring and mechanically fixes the contacting unit to the receiving device inside the receiving chamber.

Abstract: A battery module according to an embodiment of the present invention is composed of a plurality of battery cells. The battery module includes one positive (+) output terminal formed by connecting the plurality of battery cells, a field effect transistor (FET) provided on a current path between the positive (+) output terminal and an external device to block charging or discharging of a battery module, a protection integrated circuit (IC) chip for controlling the FET, and a high temperature detector for detecting whether the battery module is above a predetermined temperature and including a plurality of positive temperature coefficient (PTC) thermistors connected in series with each other.

Abstract: An image forming apparatus, having a cartridge detachably attached to the image forming apparatus and including a first compartment configured to store a colorant, a container configured to be connected with the cartridge and including a second compartment configured to store the colorant flowing from the cartridge, and a display configured to display a first object indicating a first remainder amount and a second object indicating a second remainder amount in a single screen, is provided. The first remainder amount is a remainder amount of the colorant stored in the first compartment, and the second remainder amount is a remainder amount of the colorant stored in the second compartment.

Abstract: The present disclosure relates to a field-effect transistor (FET) controlling apparatus and method for accurately, controlling an operation state of a FET by adaptively adjusting a voltage applied to the FET to correspond to a voltage of a source terminal of the FET. The voltage applied to the gate terminal of the FET may be adaptively controlled according to the voltage of the source terminal using a capacitor. Therefore, even when the source terminal is not connected to the ground but connected to an external load, there is an advantage that the operation state of the FET may be smoothly and accurately controlled. In addition, there is an advantage that a voltage within a certain range may be applied to the gate terminal of the FET.

Abstract: A power system includes a battery charge path and capacitor charge path arranged in parallel. During an inrush event, a current limiting element restricts current flow along the battery charge path to relieve battery stress. During the inrush event, current flow between the battery and load along a bypass path is also prevented by a switch element. Under steady state charging conditions, the resistance of the current limiting element decreases, thus increasing current flow between the battery and load along the battery charge path. During steady state conditions, a switch circuit controls operation of the switch element to also allow current flow between the battery and load along the bypass path. The change in the resistance of the current limiting element and/or actuation of the switch element by the switch circuit are optionally based on changes in temperature, and are passively effectuated without requiring an external control input signal.

Abstract: A European standard-based double-gun high-power quick charging system and method are disclosed. The system includes a battery management system, and at least two paths composed of corresponding charging communication modules, chargers and high-voltage charging loops, each of the chargers connected to at least one charging gun; the battery management system independently controls the charging communication module and high-voltage charging loop, and performs mapping management on a control signal and high-voltage charging loop; information interaction between different charging control units and chargers is carried out independently.