A method for controlling a cell current limiting value for a battery management system. In some examples, the method includes determining quadratic reference currents of a battery cell; calculating a corresponding reference time constant for each reference current using a model for the calculation of a RMS value of a cell current by reference to a continuous current; constituting a diagram for the relationship between the reference time constant and the quadratic reference current; determining a predictive time constant by the comparison of a quadratic measured value of a cell current with the quadratic reference currents; calculating a predictive RMS limiting value of the cell current; calculating a first predictive limiting value for a short predictive time, a second predictive limiting value for a long predictive time, and a third predictive limiting value for a continuous predictive time; and calculating additional RMS limiting value for the cell current.

A method for charging a cell of an electric energy store includes setting the cell into a charging mode; determining a first and a second impedance characteristic, each representative of a complex alternating current impedance of the cell; determining a first and a second temperature characteristic on the basis of the impedance characteristics, each representative of a temperature of the cell; determining a deviation in the temperature characteristics; and reducing a charging current of the cell in the event that the deviation exceeds a specified temperature threshold value.

Disclosed is a control apparatus for an electric power generation system. The electric power generation system is configured to generate electric power and thereby charge a secondary battery that is an electric power source of a motor included in an electric drive system. The electric drive system further includes an inverter circuit for driving the motor and a power transmission unit for transmitting electric power from the secondary battery to the inverter circuit. The control apparatus includes a temperature acquisition unit and a power generation control unit. The temperature acquisition unit is configured to acquire a temperature of the power transmission unit. The power generation control unit is configured to control the electric power generation system to generate electric power and thereby charge the secondary battery when the temperature of the power transmission unit acquired by the temperature acquisition unit is higher than or equal to a predetermined threshold temperature.

An aerosol-generating device is disclosed. The aerosol-generating device includes a first container accommodating an aerosol-generating substance, a heater heating the aerosol-generating substance, a second container configured to be rotatable and including chambers, a rotation detection sensor sensing rotation of the second container, and a controller. The controller determines any one of the chambers to be an application chamber through which an aerosol passes based on a signal received from the rotation detection sensor, and determines usage of a chamber determined to be the application chamber. The heater is heated to a first temperature or higher when the usage is equal to or greater than a first reference and less than a second reference, and is heated to a second temperature or higher when the usage is equal to or greater than the second reference and less than a third reference. The second temperature is higher than the first temperature.

A wireless power transfer system in which the driver and control circuitry are located within the electromagnetic field of the power transmission antenna, e.g., a charging coil. The power transfer system may be contained in a flexible housing, which change shape using one or more hinges, be formed of a conformable material and so on. Changes in the relative location of the antenna and the circuitry may cause interference in the circuitry and loading of the antenna, which in turn may impact the electromagnetic field output by the antenna. The wireless power system may include sensors that provide an indication of an amount of deformation of the system. The driver circuitry of this disclosure may receive an indication of the relative location of the circuitry to the antenna and compensate for changes in the output electromagnetic field caused by changes in the relative location.

A method and apparatus (100) are provided for charging a vehicle battery (108). The apparatus (100) includes a controller (102) designed to influence a charging process of the vehicle battery (108). The apparatus (100) further has a switching device (104) to transmit a signal to the controller (102) in response to operation of the switching device (104) by a user. The controller (102) is designed to influence the vehicle battery (108) before the charging process in response to receiving the signal depending on at least one desired state for the charging process.

An embodiment of the present disclosure relates to a power supply interface comprising: a converter delivering a first DC voltage; a resistor connected between the converter and an output terminal of the interface delivering a second DC voltage; a first circuit delivering a second signal representative of a difference between the second DC voltage and a voltage threshold when a first signal is in a first state, and at a default value otherwise; a second circuit delivering a third signal representative of a value of a current in first resistor multiplied by a gain of the third circuit, and modifying the gain based on the second signal; and a third circuit configured to deliver a signal for controlling the converter based at least on the third signal.

A system for charging a battery unit to power a work machine. The system includes a charger to charge the battery unit, charging receptacles, power supply connectors, and a charging controller. The power supply connectors are configured to be received into the charging receptacles to attain connections between the charger and the battery unit. The charging controller is communicably coupled to the charger and is configured to receive an input corresponding to a net charge capacity of the battery unit; determine a power to be supplied to the battery unit by the charger to charge the battery unit in response to the input; and supply the power to the battery unit from the charger through the connections. The power to be supplied to the battery unit corresponds to a maximum possible power that meets the net charge capacity of the battery unit in the shortest possible time.

A micro-network includes at least two heating appliances with communication modules, one being used for obtaining and transmitting a first data set having at least one measurement related to the electricity consumption of the heating appliance, at least one measurement related to the electricity production of same and at least one measurement related to a state of charge of an electrical energy storage device, and subsequently controlling the power supply to the heating member. The other module is used for obtaining, and transmitting to a supervision module, first and second data sets including at least one item of data relating to an electrical power source, and subsequently transmitting a first setpoint state of charge related to the state of charge of the electrical energy storage device of the other heating device. The first setpoint state of charge is taken into account when controlling the power supply to the heating member.

A vehicle includes a vehicle battery; a vehicle sensor configured to detect a current, a voltage and a temperature of the vehicle battery; and an alternator configured to output a target voltage to the vehicle battery. A controller is configured to calculate state of charge (SOC) estimation based on the current, voltage and temperature of the vehicle battery, calculate an initial SOC based on a direct current internal resistance (DCIR) map and apply the initial SOC to the SOC estimation, when an open circuit voltage (OCV) is maintained in a predetermined range after engine-off, and adjust an available SOC range based on a difference between an actual battery charge current amount, to which the initial SOC is applied, and the calculated SOC estimation.