Abstract: A modular design structure of in-vehicle electrical appliances includes: a mobile power supply and a detachable device. The mobile power supply is disposed with an input interface and an output interface for power input and output, internally disposed with a power battery pack and a circuit control board and disposed with a mounting part including a top cover, a side wall of the top cover is disposed with a snap structure, an end of the top cover is disposed with current output contacts. The detachable device includes electrical modules each with a connecting part including a bottom cover, a side wall of the bottom cover is disposed with a notch matching with the snap structure, an end of the bottom cover is disposed with current input contacts matching with the current output contacts. Through modular design, the vehicle electrical appliance is smaller and convenient to carry.

Abstract: A solar powered VTU and systems and methods for the same are provided. A solar energy harvesting device and an energy storage device are electrically connected to an electronic display within a housing. A support extends between the housing and the solar energy harvesting device such that a bottom surface of the solar energy harvesting device is elevated directly above, and is spaced apart from, a top surface of the housing. The solar energy harvesting device has a first footprint, and the housing has a second footprint. The first footprint is larger than, and directly overlies, the second footprint.

Abstract: A rechargeable energy storage includes a battery pack having a plurality of battery modules between a negative terminal and a positive terminal. A backup network is electrically connected between the negative terminal and the positive terminal. The backup network includes a first diode and a second diode. A bypass junction located between a first portion of the battery pack and a second portion of the battery pack. The bypass junction electrically connects the battery pack and the backup network. The backup network is configured such that current flow is directed along a first pathway when open circuit state occurs in the first portion of the battery pack, and the current flow is directed along a second pathway when the open circuit state occurs in the second portion of the battery pack. The backup network enables powering of a designated load and/or a designated function during the open circuit state.

Abstract: An inverter apparatus is disclosed in this application, which includes a plurality of protection units and a plurality of inverter units. For any protection unit, when a voltage at an input terminal of the protection unit is greater than a voltage at an output terminal of the protection unit, a path between the input terminal and the output terminal of the protection unit is in a forward conducted state; when the voltage at the output terminal of the protection unit is greater than the voltage at the input terminal voltage of the protection unit, the path between the input terminal and the output terminal of the protection unit is in a reverse cut-off state; and when a control terminal of the protection unit receives a first trigger signal, the path between the input terminal and the output terminal of the protection unit is in a reverse conducted state.

Abstract: Special purpose power systems for electric vehicles, control methods and special purpose electric vehicles are disclosed. Special purpose power systems control and manage loads in special purpose devices used in special purpose vehicles such as first responder vehicles. Disclosed systems and methods offer systematic control load shedding according to user designated load circuit priorities to maintain special purpose system capabilities without degrading the electric vehicle traction system and provide control of multiple circuit connections for redundant, fault tolerant operations.

Abstract: Before power is supplied to a load from a capacitor and a plurality of batteries, a battery for initially supplying power for charging to the capacitor is determined from among the plurality of batteries, based on a result of acquiring the voltage of each battery, and voltage equalization of the plurality of batteries is performed in response to power for charging being supplied to the capacitor from the determined battery.

Abstract: A power transmitter for wireless power transfer includes a control and communications unit, an inverter circuit, a coil, and a shielding. The control and communications unit is configured to provide power control signals to control a power level of a power signal configured for transmission to a power receiver, receive a receiver power request from a power receiver, provide a power request to an external power supply, based on the receiver power request, determine if a power signal at the coil is compliant with the receiver power request, and, if the power signal at the coil is compliant with the receiver power request, continue to operate for wireless power transmission. The coil is configured to transmit the power signal to a power receiver. The shielding comprises a ferrite core.

Abstract: A method for a dynamic inductive wireless power transmission includes providing an AC/DC power converter that receives three-phase power and provides regulated DC output current, connecting a trunk cable to the AC/DC power converter output and to multiple power transmitter modules. The trunk cable connects inputs of the power transmitter modules in series. The power transmitter modules transmit inductive wireless power over an air gap. The method includes providing a system controller that detects a vehicle containing a receiver coil and confirms if the vehicle should receive the inductive wireless power from the multiple power transmitter modules, and includes configuring the system controller to communicate with the AC/DC power converter to maintain the regulated DC output current at a constant value and transmit the inductive wireless power to the vehicle through the multiple power transmitter modules when the vehicle should receive the inductive wireless power.

Abstract: An energy harvesting roller for a cargo handling system may comprise a shaft and a sleeve located on the shaft. A piezoelectric member may be coupled to the sleeve. A shell may be located radially outward of the piezoelectric member and configured to rotate relative to the sleeve. A radially inward surface of the shell may define at least one of a plurality of grooves or a plurality of protrusions.

Abstract: Disclosed are a grid-connected power conversion system and a control method thereof. The grid-connected power conversion system includes a fuel cell stack generating a DC voltage, a power conversion system (PCS) converting the DC voltage supplied from the stack into an AC voltage, a multi-input transformer including a primary coil having a plurality of voltage input terminals and a secondary coil transforming a magnitude of the voltage applied to the primary coil and outputting the transformed voltage, the plurality of voltage input terminals determining the number of turns of the primary coil differently from each other, one of the plurality of voltage input terminals receiving the AC voltage converted in the PCS, and a controller selecting the one of the plurality of voltage input terminals of the multi-input transformer based on the magnitude of the DC voltage generated from the stack and determining whether to replace the stack.

Abstract: A method of controlling charging and discharging of a power station equipped with multiple battery packs, performed by a power station including N (N is a natural number equal to or greater than 2) battery packs mounted to be electrically charged/discharged and including a main controller controlling the charging/discharging, includes charging, by the main controller, the N battery packs in a determined charge order by controlling N input relay units connecting the N battery packs to an external charge source, and when a load is connected from the outside during the charging operation, calculating, by the main controller, an amount of electricity required by the load, controlling N output relay units connecting the N battery packs to the load to connect battery packs by the number corresponding to the calculated amount of electricity to the load and perform a discharging operation, wherein the charging operation and the discharging operation are performed simultaneously.

Abstract: A circuit arrangement of a motor vehicle includes a high-voltage battery for storing electrical energy, an electric machine for driving the motor vehicle, a converter via which high-voltage direct current voltage provided by the high-voltage battery is convertible into high-voltage alternating current voltage for operating the electric machine, and a charging connection for providing electrical energy for charging the high-voltage battery. The converter is a three-stage converter having a first switch unit which is assigned to a first phase of the electric machine. The first switch unit has two switch groups connected in series which each have two insulated-gate bipolar transistors (IGBTs) connected in series, where a connection is disposed between the IGBTs of one of the two switch groups, which connection is electrically connected directly to a line of the charging connection.

Abstract: Provided is a method for switching an energy storage system (ESS) to an uninterruptible power supply (UPS). The method includes: a normal power supply determination step of determining whether normal power is supplied to the ESS; an operation mode setting step of setting an operation mode of the ESS according to whether the normal power is supplied or not; and an ESS control step of controlling the ESS according to a reference corresponding to the operation mode.

Abstract: A control device that controls an in-vehicle battery and a charger in a demand and supply control system is configured to obtain total demand for electric power or the like generated in in-vehicle equipment, determine whether or not the total demand is able to be satisfied with electric power or the like suppliable from the in-vehicle battery, when the total demand is not able to be satisfied solely with the in-vehicle battery, and bring the charger into a drive state in a case where the total demand is able to be satisfied with total electric power or the like suppliable from the in-vehicle battery and the charger.

Abstract: An apparatus for wired and wireless charging of an electronic device are provided. The electronic device includes a housing, a display on a surface of the housing, a battery mounted in the housing, a circuit electrically connected with the battery, a conductive pattern positioned in the housing, electrically connected with the circuit, and configured to wirelessly transmit power to an external device, a connector on another surface of the housing and electrically connected with the circuit, a memory, and a processor electrically connected with the display, the battery, the circuit, the connector, and/or the memory. The circuit is configured to electrically connect the battery with the conductive pattern to wirelessly transmit power to the external device and electrically connect the battery with the connector to transmit power to the external device by wire, simultaneously or selectively, with wirelessly transmitting power to the external device.

Abstract: A device is disclosed, which includes: a charge portion with a plurality of piezoelectric elements embedded in a tire configured for a vehicle, a capacitor mechanically coupled to the tire and electrically coupled to the plurality of piezoelectric elements; a transmitter coil, mechanically coupled to the tire and electrically coupled to the capacitor through a discharge portion; wherein in response to an external radial pressure on the tire resulting from movement of the vehicle which causes a pressure on the plurality of piezoelectric elements, the plurality of piezoelectric elements produce an electrical charge on the capacitor, and wherein the discharge portion electrically connects the electrical charge on the capacitor to the transmitter coil to send electromagnetic power to the vehicle.

Abstract: A power module for a transport climate control system that supplies power to a plurality of components of the transport climate control system is provided. The power module includes a power module housing, a power terminal, and a power protection shroud. The power terminal extends through an external surface of the power module housing. The power protection shroud extends from the external surface of the power module housing. The power protection shroud includes a curved wall having a horseshoe shape that surrounds the power terminal.

Abstract: A system including a battery system to provide additional power during peak operating conditions is described. The system may avoid or reduce the need for extensive infrastructure associated with a power delivery system capable of providing peak power, but may instead, rely on infrastructure that need only provide power needed on an average basis.

Abstract: Techniques are disclosed that use an alternating current bridge circuit to determine whether an impedance change occurs at an input to DC-DC voltage converter(s). Techniques are also disclosed for a DC power distribution system that utilizes isolation circuitry coupled to an input of DC-DC voltage converter(s).

Abstract: In an embodiment, a power module may include: a plurality of first stages, each having an H-bridge to receive an incoming AC voltage at a first frequency and rectify the incoming AC voltage to a DC voltage; a plurality of DC buses, each to receive the DC voltage from one of the plurality of first stages; a plurality of second stages, each coupled to one of the plurality of DC buses to receive the DC voltage and output a second AC voltage at a second frequency; and a hardware configuration system having fixed components and optional components to provide different configurations for the power module.