An example apparatus includes a cavity defined by a vehicle door, with the cavity being configured to stow and charge an accessory device. The apparatus may also include an accessory cradle movable within the cavity and configured to retain the vehicle accessory. Examples of a method may include providing a cavity in an end portion of a vehicle door, with the cavity being configured to stow and charge an accessory device. The method may further include installing an accessory cradle within the cavity, with the accessory cradle being movable within the cavity and configured to retain the vehicle accessory.

An energy conversion device is provided. The device includes: a reversible pulse width modulation (PWM) rectifier (11) and a motor coil (12), where the motor coil (12) includes at least a first winding unit and a second winding unit, and the first winding unit and the second winding unit are both connected with the reversible PWM rectifier (11). The first winding unit is connected with at least one of neutral lines in the second winding unit, where at least one neutral line of at least one of the winding units is connected with a first end of a first direct current (DC) charging and discharging port (3), the reversible PWM rectifier (11) is connected with a first end of a external battery (2) and a second end of the external battery (2) respectively, and a second end of the first DC charging and discharging port (3) is connected with the second end of the external battery (2).

A railway carriage has a number of batteries, a charger associated with each of the batteries and at least one piece of equipment powered by the batteries, and a vehicle monitoring system. The monitoring system includes at least one sensor of a battery state parameter for each battery, a communication network adapted to receive information from each sensor of a battery state parameter and from each charger, and to transmit the received information to a processor. The processor is adapted to process information relating to a battery whose associated charger is switched off or defective using the information received for the other batteries.

A power supply device for an electric work vehicle, including: a battery by which an electric work vehicle is drivable; a first connection unit for an internal inverter configured to convert DC power from the battery into AC power, and output the AC power to an internal electric device installed in the electric work vehicle; a second connection unit for an external inverter configured to convert DC power from the battery into AC power, and output the AC power to an external electric device; and a battery control unit connected to the first connection unit and the second connection unit, and configured to control charging of, and power supply from, the battery, wherein the battery control unit is configured to communicate with the external inverter side via the second connection unit to perform authentication regarding whether or not power supply to the external inverter is permitted.

A computer is programmed to allocate a plurality of electric vehicles with associated electric machines to locations to perform tasks based on the charges of the electric vehicles and electric machines and expected energy consumptions of the electric vehicles traveling to the locations and of the electric machines performing the tasks at the locations; and in response to a sum of the charges of a first electric vehicle and the electric machines associated with the first electric vehicle being less than a sum of the expected energy consumptions of the first electric vehicle traveling to a first location and of the electric machines associated with the first electric vehicle performing the tasks at the first location, instruct a second electric vehicle to travel to a second location at which the first electric vehicle will be located.

An embodiment vehicle power management apparatus includes a memory configured to store a threshold state of charge (SOC) and a processing device functionally connected with the memory, wherein the processing device is configured to set a power management mode to a camping mode, identify a battery SOC, identify whether the battery SOC is greater than or equal to the threshold SOC, and enter the camping mode to allow an operation of a first vehicle function and limit an operation of a second vehicle function in response to the battery SOC being greater than or equal to the threshold SOC.

A control device for a mobile body is equipped with a charging and electrical power supplying unit including a first smoothing capacitor positioned on a connector side and a second smoothing capacitor positioned on a battery side, and a control unit configured to control the charging and electrical power supplying unit. When the battery is charged using electrical power supplied from the electrical power source device, the control unit completes precharging a first smoothing capacitor and a second smoothing capacitor using electrical power supplied from the battery, before the electrical power from the electrical power source device starts to be supplied to the charging and electrical power supplying unit.

A mobile-charging power system including a mobile transportation unit including a housing and an axle; a battery assembly positioned within the housing; a power electronics module electrically coupled to the battery assembly; and an electro-mechanical generator electrically coupled to the power electronics module. The electro-mechanical generator is driven by the axle. The system further includes a solar power generator coupled to the housing. The solar power generator is electrically coupled to the power electronics module. The system further includes a controller electrically coupled to the battery assembly and the power electronics module; and a control panel electrically coupled to the power electronics module and the controller. The control panel includes a first electrical plug and a second electrical plug.

The present disclosure discloses a charging apparatus. The charging apparatus comprises a power source module, a main control circuit, a voltage booster circuit, an adjusting circuit, and an output port. The charging apparatus is configured to charge a vehicle battery or other consumers through the output port. The power source module is electrically connected to the main control circuit and the voltage booster circuit. The main control circuit is electrically connected to the adjusting circuit and the voltage booster circuit. The main control circuit is configured to output an adjusting signal to the adjusting circuit. The adjusting circuit controls the voltage booster circuit to output a first or second output voltage to the output port, according to the adjusting signal. The second output voltage is greater than the first output voltage. The present disclosure provides a plurality of voltages to meet the vehicle battery.

A vehicle electrical system includes a battery, a customer connection point, a switch electrically connected in series between the battery and the customer connection point, a computer communicatively coupled to the switch, and a transceiver communicatively coupled to the computer. The computer is programmed to instruct the switch to open in response to a state of charge of the battery decreasing below a charge threshold, receive an input selecting a time limit, and instruct the transceiver to transmit a message to a remote server upon determining that the state of charge of the battery will decrease below the charge threshold in less than the time limit from a current time.