A battery system according to an embodiment disclosed in this document includes a plurality of battery cells; a plurality of antennas correspondingly connected to the plurality of battery cells for each power transmission and reception of the plurality of battery cells, and different in pattern…
A method of maintaining a rechargeable battery pack having a plurality of rechargeable batteries. The method includes measuring charge-level for the rechargeable batteries; and selecting a first battery set including a donor battery having a high charge-level, and a recipient battery having a low…
A battery management system for an electrified vehicle configured to diagnose an abnormal behavior of a battery using a cell balancing function, and a method for diagnosing a battery thereof, are provided. The battery management system comprises a processor that is configured to monitor a battery…
A cell balancing control method in a dual battery system and a system thereof are provided. The cell balancing control method in a dual battery system uses a sub high voltage battery for stably extending a driving distance in an electric vehicle and may perform cell balancing of a main high voltage…
A battery unit includes at least one string of battery modules and a low-voltage switching unit connectable to multiple low-voltage loads. The battery modules are electrically connected in series. Each battery module includes a plurality of battery cells electrically connected in series. Each…
Cell selection circuit (11) is provided between n cells (C1 to C4) connected in series, where n is an integer of 2 or more, and inductor (L1), and is provided at both ends of the selected cell and both ends of inductor (L1) can be conductive. Clamp circuit (12) includes at least one clamp switch…
A battery management apparatus, a battery pack, an electric vehicle and a battery management method are provided. The battery management apparatus according to the present disclosure includes a controller configured to obtain a plurality of cell state parameters indicating electric states of the…
Example methods to manage a plurality of battery packs of an electric vehicle include initiating a charging process for a primary battery pack and an auxiliary battery pack, determining that an Open Circuit Voltage (OCV) of the primary battery pack matches an OCV of the auxiliary battery pack, and…
A passive dynamic cell balancing system for an electrified vehicle includes a dynamic load system configured to vary a balancing current output to a battery system of the electrified vehicle, wherein the battery system comprises a plurality of battery cells, and a control system configured to…
A method for controlling an electric vehicle battery is provided. The electric vehicle includes a plurality of wheels, a driving motor for supplying power to the plurality of wheels, and a controller for controlling power supply to the driving motor and/or charging by the driving motor. The method…
A method of controlling a battery of a vehicle is provided. The vehicle includes a driving motor for providing a driving force to a wheel. The method includes selecting, by a controller, a battery among a first battery and a second battery based on a plurality of driving areas and operation points…
A power supply device includes battery stack (2) in which a plurality of battery cells (1) are stacked, and a plurality of battery modules (10) including cell monitor circuits (6) that detect battery information of battery cells (1), and cell monitor circuits (6) of the battery modules (10) are…
An example vehicle battery control system includes an electric motor, a vehicle battery pack configured to supply power to the electric motor, the vehicle battery pack including multiple battery modules each including multiple rechargeable battery cells, and a vehicle control module configured to…
Disclosed is an apparatus and method for balancing battery packs connected in parallel. If the pack voltage deviation of the first to nth battery packs is greater than the first threshold value, a battery cell having a higher voltage than the pack balancing target voltage set according to a preset…
Provided are a battery controller, a wireless battery control system, a battery pack and a battery balancing method. The battery controller is for a battery module comprising a positive terminal, a negative terminal and a plurality of battery cells electrically connected in series between the…
A cell balancing module according to an embodiment of the present invention comprises: a main board on which a plurality of cell balancing resistors are mounted; at least one sub-board on which a plurality of cell balancing resistors are mounted and which is formed above the main board while being…
Disclosed is an apparatus and method for controlling a turn-on sequence of switch units included in a parallel multi battery pack. The control unit may receive a switch voltage value from a voltage sensor coupled to a k sequence switch unit (k is a turn-on sequence index, which is a natural number…
Balance control for a rechargeable energy storage system (RESS) having a plurality of power modules. The balance control may include determining a state deviation for each of the power modules and implementing a balance control strategy to individually control power transfer capabilities of the…
Systems and methods for operating a vehicle power system are described. The vehicle power system includes an inverter and an electric machine. Switches and a diode are arranged in a way that allows a traction battery to be charged by either a lower voltage charger or a higher voltage charger…
A system is provided with which data on the internal state of a storage battery such as SOC-OCV characteristics and FCC can be obtained with high accuracy and highly accurate estimation is possible even in the case of repeating charging and discharging for a long period. The storage battery…
A cell balancing apparatus of a battery module in which a first battery cell, a plurality of second battery cells, and a third battery cell are connected in series is provided. A first terminal of a first inductor is connected to a negative electrode of the first battery cell, and a first terminal…
An energy transfer system includes a conversion device configured for partial power processing and configured to regulate current from a first battery system, and a controller configured to control the conversion device to adjust a first voltage of the first battery system to conform the first…
A power supply system that utilizes a hybrid architecture to enable low cycle-life, high energy density chemistries to be used in rechargeable batteries to extend the range of a traction battery.
A battery voltage equalization device for an automotive battery formed from a plurality of batteries connected in series includes: a voltage measurement unit that measures respective battery voltages of the batteries; a current measurement unit that measures a charge-discharge current of the…
A battery management system for batteries, such as, but not limited to, electric vehicle battery packs and cells, lithium iron phosphate batteries, lead acid batteries, gel batteries, and absorbed gel mat batteries, in engine start applications is disclosed. The battery management system is…
Provided is a method in an electricity-driven apparatus to be driven by receiving power through a plurality of battery packs in a parallel type. The method includes detecting a state of charge (SOC) of each of the plurality of battery packs, calculating a voltage difference between the plurality of…
Balancing of rechargeable electrical energy storages is described. In particular aspects, the disclosure relates to balancing of an electrical energy storage using a low voltage network.
A battery management system for batteries, such as, but not limited to, electric vehicle battery packs and cells, lithium iron phosphate batteries, lead acid batteries, gel batteries, and absorbed gel mat batteries, in engine start applications is disclosed. The battery management system is…
A power system includes an inverter, a pair of traction batteries electrically in series, and collectively in parallel with the inverter, a plurality of switches electrically in series, and collectively electrically in parallel with the traction batteries and inverter such that the switches are…
A power conversion system includes: a main battery configured to be recharged with power and to supply the recharged power to a motor, thereby supplying rotation force to a wheel of a vehicle; an auxiliary battery configured to recharge the main battery or to assist a power supply function of the…