Abstract: According to an embodiment, it is a battery arrangement comprising plurality of battery cells, of which a first sub-number connected in series form a first string, a second sub-number connected in series form a second string, and a third sub-number connected in series form a third string, the first string, second string, and third string configured to connect to an electric machine as one respective phase; and plurality of battery cell controllers, each connected to a terminal of at least one of the battery cells within one string, each of the battery cell controllers comprising at least a power electronics arrangement, and each of the battery cell controllers forming a first thermal conduction path extending from the power electronics arrangement via the terminal to a body of a respective battery cell, and wherein the battery arrangement is configured for connecting to the electric machine and/or a power supply.

Abstract: Control strategies for an electric vehicle battery system that incorporate active cell temperature balancing are described. In an example, a method comprises employing, by a system operatively coupled to at least one processor, a smartcell battery system to supply power to one or more electrical systems of a vehicle, the smart cell battery system comprising a plurality of battery cells. The method further comprises controlling, by the system, operations of the battery cells in accordance with a control protocol that results in increasing a temperature of a subset of the battery cells based on the temperature being below a threshold temperature. In an example, the control protocol can include circulating current between the subset of battery cells and/or other battery cells excluded from the subset, actively discharging the subset of battery cells and redistributing the power to other battery cells excluded from the subset, and others.

Abstract: The present invention generally relates to a portable system comprising an ultraviolet (UV) lighting arrangement, to for example be used in relation to reduce microorganisms and reducing transmission of pathogens in e.g. a hospitality environment.

Abstract: Compact designs for a printed circuit board (PCB) device of a smartcell battery system are provided. The design includes a number of features, including a direct current to direct current (DCDC) converter having a compact, low-cost design that can provide significant power output despite operating at low voltages. In an example, the DCDC converter includes a number of features, including but not limited to, a closed loop for the primary side winding, integrated leakage inductance, a planar integrated transformer, a modular exchangeable secondary side winding, and two variants of secondary side rectification depending on the desired output voltage. The components of the DCDC converter respectively have planar or substantially planar geometries that enable the DCDC converter to have a compact, planar geometry with an overall thickness of about 1.0 millimeter.

Abstract: Compact designs for a printed circuit board (PCB) device of a smartcell battery system are provided. The design includes a number of features, including a scalable, high performance power module. The power module includes a number of power switches (e.g., metal oxide semiconductor field effect transistors (MOSFETs)), that have low resistance which can control very high currents of a direct to direct (DCDC) converter and an H-bridge of the PCB. The power module is sandwiched between the input and output busbars positioned on opposite surfaces of the primary, planar substrate of the PCB in order to create the shortest possible current transfer distance.

Abstract: Techniques for optimized control of a distributed system of direct current to direct current (DCDC) converters are described. In an example, a method comprises employing, by a system operatively coupled to at least one processor, a smartcell battery system to supply power to an electrical system of an electric vehicle, the smartcell battery system comprising a plurality of battery cell clusters arranged in three strings, each battery cell cluster of the plurality comprising one or more battery cells, DCDC converters connected to respective ones of the battery cell clusters and the electrical system. The method further comprises controlling, by the system, when respective ones of the DCDC converters activate and deactivate generation and provision of respective output voltages to the electrical system using respective ones of the battery cell clusters to which they are connected based on monitored power demands of the electrical system.

Abstract: Devices, systems, methods, computer-implemented methods, and/or computer program products to facilitate an intelligent battery cell with integrated monitoring and switches are provided. According to an embodiment, a device can comprise active battery cell material. The device can further comprise an internal circuit coupled to the active battery cell material and comprising: one or more switches coupled to battery cell poles of the device; and a processor that operates the one or more switches to provide a defined value of electric potential at the battery cell poles.

Abstract: An electro-hydraulic apparatus comprising a base structure; an electric machine comprising a stator fixed to the base structure and a rotor rotatable about a rotation axis, the rotor being positioned radially inside of the stator with respect to the rotation axis; and a hydraulic machine comprising a revolver fixed to the rotor and including a plurality of cylinders, at least one piston plate, and a plurality of pistons fixed to the at least one piston plate, each piston being arranged to reciprocate inside one of the cylinders during rotation of the revolver to perform suction strokes and discharge strokes. A vehicle comprising an electro-hydraulic apparatus is also provided.

Abstract: According to an embodiment, it is a method comprising, requesting a first cell level inverter unit to enable a first discharge current and a second cell level inverter unit to disable a second discharge current, and requesting the second cell level inverter unit to enable the second discharge current and the first cell level inverter unit to disable the first discharge current, and wherein the method is operable for operating a battery system comprising a plurality of battery cells comprising a first single battery cell and a second single battery cell; and a plurality of cell level inverter units comprising the first cell level inverter unit and the second cell level inverter unit; and wherein each of a cell level inverter unit of the plurality of cell inverter units being electrically coupled to at least a single battery cell out of the plurality of battery cells.

Abstract: A battery control assembly for a battery system. The battery control assembly includes a plurality of cell-level control units, each including a cell-level switching unit being operable as a cell-level inverter. The plurality of cell-level control units are arranged in three control unit strings and the cell-level control units of each control unit string are electrically connected in series. First ends of each control unit string are electrically connected to a corresponding AC charging terminal. Second ends of the control unit strings are electrically connected in series via a first end switch and a second end switch. Moreover, at least one of the control unit strings includes an inner connection terminal. Furthermore, an electric drivetrain for an electric vehicle having such a battery control assembly is presented.

Abstract: Devices, systems, methods, computer-implemented methods, and/or computer program products to facilitate an intelligent battery cell with integrated monitoring and switches are provided. According to an embodiment, a device can comprise active battery cell material. The device can further comprise an internal circuit coupled to the active battery cell material and comprising: one or more switches coupled to battery cell poles of the device; and a processor that operates the one or more switches to provide a defined value of electric potential at the battery cell poles.

Abstract: Devices, systems, methods, computer-implemented methods, and/or computer program products to facilitate an intelligent battery cell with integrated monitoring and switches are provided. According to an embodiment, a device can comprise active battery cell material. The device can further comprise an internal circuit coupled to the active battery cell material and comprising: one or more switches coupled to battery cell poles of the device; and a processor that operates the one or more switches to provide a defined value of electric potential at the battery cell poles.

Abstract: Devices, systems, methods, computer-implemented methods, and/or computer program products to facilitate an intelligent battery cell with integrated monitoring and switches are provided. According to an embodiment, a device can comprise active battery cell material. The device can further comprise an internal circuit coupled to the active battery cell material and comprising: one or more switches coupled to battery cell poles of the device; and a processor that operates the one or more switches to provide a defined value of electric potential at the battery cell poles.

Abstract: One or more systems, devices, and/or system-implemented methods are provided that can facilitate provision of varying AC output voltage or DC output voltage, including selectively separately providing a positive voltage output, a negative voltage output and no voltage output. A device can comprise a battery cell, and a controller connected to the battery cell and that varies output from the battery cell, wherein the controller is configured to cause the battery cell to selectively separately provide negative output voltage, positive output voltage and no output voltage. A method can comprise varying output polarity from a multi-cell battery cluster and selectively providing one or both of alternating current (AC) voltage output or direct current (DC) voltage output from the multi-cell battery cluster due to the varying of the output polarity.

Abstract: One or more systems, devices, and/or system-implemented methods are provided that can facilitate provision of varying AC output voltage or DC output voltage, including selectively separately providing a positive voltage output, a negative voltage output and no voltage output. A device can comprise a battery cell, and a controller connected to the battery cell and that varies output from the battery cell, wherein the controller is configured to cause the battery cell to selectively separately provide negative output voltage, positive output voltage and no output voltage. A method can comprise varying output polarity from a multi-cell battery cluster and selectively providing one or both of alternating current (AC) voltage output or direct current (DC) voltage output from the multi-cell battery cluster due to the varying of the output polarity.

Abstract: One or more embodiments herein can facilitate charging and/or discharging of one or more units (e.g., battery cells and/or multi-cell battery clusters of battery cells) based at least in part on state of charge and/or state of health monitoring at one or more of the cell-level and/or cluster-level. An exemplary method can comprise monitoring, by a system operatively coupled to a processor, cell states of cells of a multi-cell battery cluster, and selectively determining, by the system, based on the cell states, a time-based order for electrically connecting the cells to an external apparatus for current flow between the external apparatus and the cluster. The cell states can be provided as a function of a cluster state of the cluster. The cell states can be provided as one or more of states of health of the cells or states of charge of the cells determined from the monitoring.

Abstract: A battery cell assembly for a battery unit of an electric vehicle. The battery cell assembly includes a plurality of battery cells. The battery cells are arranged in two rows. All battery cells are electrically connected in series. Moreover, an electromagnetic compensation conductor is provided which is arranged such that the electromagnetic compensation conductor passes by at least a first sub-group of the battery cells. Alternatively or additionally, at least one electric inter-row connector electrically connecting one of the poles of one of the battery cells of a first row to one of the poles of one battery cell of a second row, is provided and a connection direction of the inter-row connector is inclined with respect to the line-up directions. Furthermore, a battery unit for an electric vehicle including at least one battery cell assembly is presented.

Abstract: A battery assembly, including: a plurality of battery cells each including a pair of poles; a printed circuit board (PCB) disposed adjacent to the plurality of battery cells and electrically coupled to a pole of the pair of poles of each of the plurality of battery cells; a plurality of switches disposed on the PCB each electrically coupled between the pair of poles of an associated battery cell; and a controller disposed on the PCB and electrically coupled to the plurality of switches; wherein the controller and the plurality of switches are operable for controlling the voltage provided by each of the plurality of battery cells. The PCB and the plurality of switches are electrically coupled to the pole of the pair of poles of each of the plurality of battery cells via a plurality of bus bars disposed one or more of above and below the PCB.

Abstract: A battery control assembly for a battery system. The battery control assembly includes a plurality of cell-level control units, each including a cell-level switching unit being operable as a cell-level inverter. The plurality of cell-level control units are arranged in three control unit strings and the cell-level control units of each control unit string are electrically connected in series. First ends of each control unit string are electrically connected to a corresponding AC charging terminal. Second ends of the control unit strings are electrically connected in series via a first end switch and a second end switch. Moreover, at least one of the control unit strings includes an inner connection terminal. Furthermore, an electric drivetrain for an electric vehicle having such a battery control assembly is presented.

Abstract: Systems and techniques that facilitate smartcell battery architectures and methodologies are provided. In various embodiments, a battery can comprise a positive terminal and a negative terminal. In various aspects, the battery can further comprise a set of smart battery cells that are serially coupled between the positive terminal and the negative terminal and that respectively comprise full-bridges. In various instances, the full-bridges can have charge states, discharge states, and/or by-pass states. When some of the set of smart battery cells have full-bridges in the charge state, and when others of the set of smart battery cells have full-bridges in the discharge state or by-pass state, the battery can be charged by a supplied voltage that is less than the sum of individual voltages of all of the set of smart battery cells.