Abstract: A device for contactless transmission of data and energy and for angle measurement, including a first disk-shaped unit and a second disk-shaped unit, which move in relation to one another around a shared rotational axis and are opposite to one another axially spaced apart with respect to the rotational axis. The first disk-shaped unit including a first annular disk-shaped recess, and the second disk-shaped unit including a first annular disk-shaped recess, which is opposite to the first annular disk-shaped recess of the first disk-shaped unit radially spaced apart with respect to the rotational axis. The first disk-shaped unit includes at least one second annular disk-shaped unit situated concentrically to the first annular disk-shaped recess of the first disk-shaped unit, and the second disk-shaped unit includes at least one second annular disk-shaped recess situated concentrically to the first annular disk-shaped recess of the second disk-shaped unit.

Abstract: The invention relates to an on-board network device for supplying at least two electrical loads with an on-board network voltage in a motor vehicle, wherein the on-board network device has a connection device for receiving the on-board network voltage from a voltage source and a first on-board network branch for connecting one or some of the loads and for forwarding the on-board network voltage to each connected load. A second on-board network branch is provided for connecting each remaining load and for forwarding the on-board network voltage to each remaining load and that the connecting device is connected to both the first on-board network branch and the second on-board network branch via at least one switching element and that a control device is configured to electrically connect the connection device in an alternating manner to the first and second on-board network branches by switching the at least one switching element.

Abstract: Systems and methods for improved anomaly detection for rotating machines. An example method may include determining that power generation is to be performed based on a voltage instead of a power factor; receiving a command voltage; receiving a measured voltage value from a first location in a power generation network; determining that the measured voltage value from the first location is less than the command voltage value; determining that a current value associated with a transmission line at the third location is less than a threshold current value; determining that a reactive power of a power generation component at a third location is less than a maximum reactive power of the component; and increasing, based on the determination that the reactive power of the component at the third location is less than a maximum reactive power of the component, the reactive power of the component.

Abstract: An energy storage system and a multi-stage short circuit protection system thereof are provided. The multi-stage short circuit protection system includes N stages of fuse units. Each battery pack is connected to a corresponding first-stage fuse unit, a direct-current side of a power conversion device is arranged with a third-stage fuse unit, and at least one second-stage fuse unit is arranged between multiple battery packs and the power conversion device. In a case that a short circuit fault occurs at a position on the direct-current side of the power conversion device, only a fuse unit at a stage preceding the position and a fuse unit at a stage following the position are broken, thereby avoiding a problem of a high maintenance cost in the conventional technology due to that all fuses are broken.

Abstract: The invention relates to an inductive charging device for a vehicle and to a method for monitoring an inductive charging device for a vehicle, wherein a metal object is detected in each case. The method has the steps of: carrying out a passive metal object detection, MOD, while a battery of a vehicle (1) is inductively charged by generating an electromagnetic field in order to induce a charge current (I2) in a receiving coil structure (2) of the vehicle (1); and carrying out an active MOD at points in time at which no inductive charging process is being carried out.

Abstract: A long-term predictor predicts long-term predicted power indicating temporal changes in consumed power of a customer using a long-term prediction model. A short-term predictor predicts short-term predicted power indicating temporal changes in the consumed power of the customer immediately after a current time, using a short-term prediction model, based on temporal changes in the consumed power of the customer immediately before the current time. A controller controls charging and discharging of a power storage apparatus at intervals based on the long-term predicted power and the short-term predicted power. The controller predicts temporal changes in charging power, discharging power, and charged electric energy of the power storage apparatus, and when the charged electric energy is predicted to reaches a lower limit due to discharging of the power storage apparatus, the controller charges power from the power network to the power storage apparatus in advance.

Abstract: A first disclosure is a coil member wherein a lead wire is wound in oval shape, with an oval-shaped cross section being curved along a major-axis direction of the oval-shaped cross section and having a curvature axis in a direction parallel to a minor-axis direction of the oval-shaped cross section. A second disclosure is a contactless-type power transmission device provided with: a coil member as a first coil; a second coil; and a tilting shaft that makes variable, using the curvature axis as a rotating axis, an inclination between a central axis of the first coil, which is a rotational symmetry axis of the first coil, and a central axis of the second coil.

Abstract: The present disclosure provides a configuration that can determine whether to suppress the power consumption of a load based on the state of a battery, and reduce the duty ratio to be supplied to a switch unit that is provided on a power supply path to the load, when the power consumption is to be suppressed. In an on-board power control apparatus, when a determination unit determines that a prediction value of an output voltage of a battery is less than a threshold voltage value, a duty ratio setting unit selects at least one of the plurality of loads as a target load for which power supply is to be stopped or suppressed, and the duty ratio setting unit resets duty ratios to reduce a duty ratio of a control signal to be output to a switch unit provided on a power supply path to the selected target load.

Abstract: A standalone direct current (DC) power supplying system, which is not connected to commercial power, includes a power conditioner that supplies generated power W2 of a power generator to a DC bus, DC/DC converters that convert a bus voltage Vbs and supply load power (WLa+WLb) to load appliances, bidirectional DC/DC converters that supply a constant DC current from the DC bus to storage batteries or from the storage batteries to the DC bus, and an energy management system. When the generated power W2 exceeds the load power (WLa+WLb), the energy management system causes the converters to supply a constant DC current with a common charging rate to the storage batteries, and when the generated power W2 falls below the load power (WLa+WLb), the energy management system causes the converters to supply a constant DC current with a common discharging rate from the storage batteries to the DC bus.

Abstract: An electric power conversion apparatus includes a main DC-to-DC converter and an electric power conversion unit. The main DC-to-DC converter is configured to perform voltage conversion between a first-voltage section that operates at a first voltage and a second-voltage section that operates at a second voltage. The electric power conversion unit is connected with the first-voltage section and includes an electric power conversion section and an auxiliary DC-to-DC converter. The electric power conversion section is configured to perform electric power conversion between the first-voltage section and a third-voltage section that operates at a third voltage. The auxiliary DC-to-DC converter is connected in parallel with the main DC-to-DC converter. The auxiliary DC-to-DC converter shares a common configuration section with the electric power conversion section. The common configuration section is constituted of at least part of the electric power conversion section.

Abstract: A voltage switching circuit selectively transfers voltages applied to a first input terminal and a second input terminal to a first output terminal and a second output terminal. The voltage switching circuit includes a first transistor and a second transistor. The first transistor is formed on a first well on a substrate, and is coupled between the first input terminal and the first output terminal. The second transistor is formed on a second well different from the first well, and is coupled to the second input terminal. In a first mode in which a first voltage applied to the first input terminal is transferred to the first output terminal and the second output terminal, the first transistor is turned on and the second transistor is turned off.

Abstract: An automotive vehicle includes an electric machine, a traction battery, and a power converter. The power converter transfers power between the electric machine and traction battery. The power convert includes a switch that defines a portion of a phase leg, a gate driver circuit that provides provide power to a gate of the switch, and a clamping circuit. The clamping circuit includes a clamping switch that, responsive to the gate driver circuit being de-energized and a voltage of the gate exceeding a predetermined threshold value, conducts current from the gate to dissipate the voltage and clamp the gate to an emitter of the switch.

Abstract: A system and method for supplying electric energy to a mining vehicle and a mining vehicle are provided. Electric energy is supplied to the mining vehicle using a system including a bipolar LVDC supply having a certain total voltage. The mining vehicle has at least a first energy unit and a second energy unit. The first energy unit is connected to a part of the certain total voltage and the second energy unit is connected to another part of the certain total voltage.

Abstract: This specification describes a power distribution system comprising a first section that receives power from a first source. The power at the first section is adjusted by a rectifier coupled to a power bus of the first section. The system includes a second section that is separate from the first section and that receives power from a second source. The power at the second section is adjusted by a rectifier coupled to a power bus of the second distribution section. The system includes a swing rectifier connected to each of the first and second sections. The swing rectifier is configured to provide power to the first power bus and to the second power bus and to dynamically adjust the power capacity of the first section that is available to computing loads, and to dynamically adjust the power capacity of the second section that is available to computing loads.

Abstract: A protective device connected between an external terminal provided in an energy storage apparatus and a power cable extending from a vehicle, the protective device includes a current interruption device that interrupts electric conduction between the vehicle and the energy storage apparatus in response to a command of a CPU in a battery management device provided in the energy storage apparatus.

Abstract: An energy harvesting apparatus, system, and method are provided to perform energy harvesting and estimation of ambient energy intensity. The energy harvesting apparatus includes an energy converter, an energy storage, an output voltage/current detector, and a switch. The energy converter receives ambient energy, converts the ambient energy into DC power having a DC voltage and a DC current, and outputs the DC power. The energy storage receives and stores the DC power. The output voltage/current detector has a constant load value and detects at least one of the DC voltage and the DC current, outputted from the energy converter, to be used for estimating intensity of the ambient energy. The switch selectively connects the energy converter to the energy storage or the output voltage/current detector.

Abstract: According to a first aspect of the present disclosed subject matter, a method for foreign object detection in a system having a relay adapted to inductively transfer power for charging a device and a transmitter having a controller configured to inductively transmit to the relay the power for charging the device, wherein the transmitter and the relay are separated by a medium, wherein the controller is capable of communicating with the device, the method comprising operations by the controller: determining power consumed by the transmitter; determining power loss on the transmitter according to continuous measurements of AC output current; obtaining coupling factor between the transmitter and the relay; determining power loss on the relay based on continuous measurements of AC output current and coupling factor; subtracting from the power consumed by the transmitter the power loss on the transmitter and power loss on the relay; obtaining from the device consumed power of the device; comparing a result of the

Abstract: A multi-coil based wireless power transmission device is disclosed that includes a primary coil array forming a magnetic coupling with a secondary coil provided in a wireless power reception device to transmit wireless power to the wireless power reception device; a plurality of inverters connected to a plurality of primary coils one-to-one to selectively drive each of the plurality of primary coils; a communication and control unit controlling the plurality of inverters and communication with the wireless power reception device such that at least one primary coil is driven based on the degree of magnetic coupling formed by each primary coil and the secondary coil, thereby determining output, which can be provided by the primary coil array, within a value obtained by summing all the maximum outputs individually set to the respective primary coils.

Abstract: An inductor for a boost converter in a hybrid vehicle includes a core, a coil winding, and an end cap. The coil winding is disposed about the core. The end cap is disposed over a first end of the inductor, overhangs the coil winding, defines a channel that is configured to receive fluid from a pump, defines at least one nozzle that is configured to direct fluid from an overhanging portion of the end cap and onto the coil, and defines a fluid reservoir that is in fluid communication with the channel and the at least one nozzle.

Abstract: Disclosed are a wireless power transfer apparatus and a method of controlling the same. The wireless power transfer apparatus in one example can include a power transmission circuit including a plurality of coils and configured to transfer power through the plurality of coils, and a controller, wherein the controller is configured to calculate a data value of a coil with respect to each of the plurality of coils, and determine a position of an object in a charge region corresponding to the plurality of coils in a charge region based on a comparison result obtained by comparing the data value calculated for each of the plurality of coils.