A vehicle includes an electrified propulsion system powered by a traction battery over an electrical distribution system (EDS) and a controller programmed to monitor at least one of a current flow and a temperature at a plurality of locations throughout the EDS. The controller is also programmed to implement at least one mitigation action over a predetermined time window in response to detecting a filtered current value exceeding a threshold.

A power calculation apparatus calculating an amount of power suppliable to a power system by an energy source connectable, at a connection point, to the power system and capable of power generation and power storing, the power calculation apparatus includes: a microprocessor and a memory connected to the microprocessor, wherein the microprocessor is configured to perform: specifying a position of the connection point of the energy source in connection with the power system; acquiring a capacity information indicating a power generation capacity or a remaining storage capacity of the energy source; and calculating an amount of power suppliable by the energy source to the power system in an area within a predetermined range including the connection point, based on the capacity information and the position of the connection point.

An embodiment bidirectional charging system for a vehicle includes a first bridge circuit having a plurality of legs each including two first switching elements connected in series with each other between both ends of a battery, a transformer comprising a plurality of primary-side windings connected to a grid or load side and a plurality of secondary-side windings insulated from the plurality of primary-side windings, a motor including a plurality of input terminals configured to receive a plurality of phase voltages, respectively, a plurality of changeover switches configured to selectively connect connection nodes of the two first switching elements included in the plurality of legs to the plurality of secondary-side windings or to the plurality of input terminals, respectively, and a controller configured to control connection states of the plurality of changeover switches according to a pre-configured operation mode.

A battery management system of a vehicle includes a first controller configured to control a power-on (IG ON) state and a power-off (IG OFF) state of the plurality of controllers, and a second controller including a real time clock (RTC) and configured to be woken up by directly receiving power from the secondary battery in every preset time period during a preset time calculated based on a count value provided from the RTC when a power-off state is started by the first controller and to monitor states of the main battery and the secondary battery.

A battery load management system and methods of managing a battery load, e.g., in a vehicle, may be directed to a converter that steps down electrical power from an input voltage to a reduced voltage. An electrical bus in electrical communication with the converter may be configured to supply electrical power received from the converter at the reduced voltage to a plurality of electrical loads. A controller may be configured to detect a load shed trigger, and in response to the detection select one or more low-priority loads included in the plurality of electrical loads. The controller may also be configured to reduce electrical power consumption by the one or more low-priority loads.

An energy conversion system, an energy conversion method, and a power system. The energy conversion system may include a bridge arm conversion module, a direct current to direct current (DC/DC) conversion module, a motor, a bus capacitor, and a control module. The control module may be configured to control a bridge arm switch action in the bridge arm conversion module, drive the motor based on an alternating current input voltage supplied by a power supply, form a bus voltage at two ends of the bus capacitor, and control the DC/DC conversion module to charge a traction battery and an auxiliary battery based on the bus voltage. The traction battery and the auxiliary battery can be charged while the motor is driven, thereby achieving higher energy conversion efficiency, low costs, and strong applicability.

A controller of a contactless charging device performs a process including: acquiring vehicle information when a vehicle is present above a power transmitting device; permitting charging when it is determined that the vehicle is an electrically powered vehicle used as a taxi; starting charging; prohibiting charging when it is determined that the vehicle is not an electrically powered vehicle used as a taxi; and performing a notification process.

A radio frequency identification (RFID) tag includes an antenna, an analog front end, a processing circuit, and memory. The analog front end includes a power circuit, a tuning circuit, a transmitter, and a receiver. The power circuit is operably coupled to convert a radio frequency (RF) signal into a power supply voltage. The tuning circuit, when enabled, adjusts an RF characteristic of the analog front end to tune power harvesting from the RF signal. The transmitter is operably coupled to transmit a response signal to the RFID reader via the antenna. The receiver is operably coupled to receive a command signal from the RFID reader, wherein the command signal is contained within a portion of the RF signal. The processing circuit is operable to interpret the command signal and generate the response signal.

An onboard DC charger for an electric vehicle, wherein the electric vehicle includes an electric machine and a power conversion device that is a drive circuit for the electric machine and a charging circuit for the on-board battery. The one or more electric machines of the vehicle are mounted to the body for providing locomotive energy, wherein the or each machine has a stator, a rotor mounted to the stator for rotation, and one or more windings; and a controller for operating in a first state and a second state wherein, in the first state, the controller allows current to be drawn from the DC energy source for energising at least one of the one or more windings such that the electric machine provides the locomotive energy and, in the second state, the controller controls the position of the rotor relative to the stator and allows at least one of the one or more windings to be energised to provide a charging current to the DC energy source.

A power feed system includes a computer that evaluates benefit obtained when a power feed mat is placed, for each of a plurality of locations within a subject region where the power feed mat can be placed, the power feed mat being configured to wirelessly feed power to a movable body. In a power feed method using such a computer, a display shows a result of evaluation of the benefit for each location within the subject region evaluated by the computer.