Abstract: A multi-phase power inverter for an electric propulsion system includes a plurality of T-type multilevel power converters arranged between a high-voltage direct current (DC) power supply and an electric machine. Each of the plurality of T-type multilevel power converters is a solid-state integrated circuit that includes a positive DC power bus, a negative DC power bus, a neutral bus, and a plurality of semiconductor switches disposed in a stacked arrangement. The plurality of semiconductor switches is interconnected via the positive DC power bus, the negative DC power bus, and the neutral bus.

Abstract: An underarm gang operated vacuum break switch (underarm switch) has an electrically live portion under a mounting arm, which provides advantages over the standard vacuum break switch, which have the electrically live portion above the mounting arm. Because the non-electrified mounting arm is above the electrified portion, the underarm switch is safer for perching birds and other wildlife. The nature of the underarm switch also provides other benefits including a disconnect blade that when opened creates a visual gap to ensure electrical discontinuity along with a safety locking arm tied to deactivating the underarm switch. Adding to the safety measures is a visual indicator that shows an electrician when the switch is live and safe to open the disconnect blade. Other safety measures include a shock absorber assembly and inertia slowing mass protecting electrical contacts within the vacuum break switch from failing.

Abstract: Electrically powered vehicles with redundant power distribution circuits employ inverters and a multi-phase alternating current (AC) motor. An electrically powered vehicle includes batteries, inverters, interphase transformers, and a three-phase AC motor. Each of the inverters generates a three-phase AC input from power supplied by an associated one of the batteries. The interphase transformers generate drive phases for the AC motor from the three-phase AC inputs generated by the inverters.

Abstract: A method for preventing unintentional islanding of loop networks when a distributed power source is providing power to the network when network power is lost. The method includes detecting loss of voltage to the network, opening the source side switching device in the transformers nearest both ends of the power line, and detecting that voltage has been restored to the network. Also provided are a system and method for preventing distributed power generation export in a power distribution network during normal operation. The method includes determining the apparent power at the source side of each of the transformers, determining the apparent power at the load side of each of the transformers, comparing the determined apparent powers, and opening the source side and load side switching devices in any transformer where the determined apparent powers are not the same.

Abstract: A semiconductor integrate circuit device includes: an output transistor connected between a voltage input terminal to which a DC voltage is input and a voltage output terminal; a control circuit that controls on/off of the output transistor; a proportional current generation circuit capable of generating a current proportionally smaller than a current flowing through the output transistor; an overcurrent detection circuit capable of detecting an overcurrent state of an output current by determining whether a current flowing through the output transistor is equal to or greater than a first predetermined current value, based on the current generated by the proportional current generation circuit; and a retry circuit that generates and outputs a signal for intermittently turning off the output transistor in response to the overcurrent detection circuit detecting the overcurrent state.

Abstract: A power converter has a capacitor and a power conversion unit having a series-connected unit composed of an upper arm side switching element and a lower arm side switching element. The capacitor is connected in parallel with the serios connection unit. The power conversion unit supplies electric power to a motor. A controller for the power conversion unit has a frequency characteristics estimation part estimating frequency characteristics of a battery current of the battery when a current is flowing between the power convertor and the battery, a ripple current setting part determining a ripple frequency of a ripple current contained in the battery current based on the frequency characteristics of the battery current, and a control part performing a switching control of the switching elements based on the ripple frequency in order to generate the ripple current.

Abstract: A power receiving apparatus for receiving power transmitted by wireless power transmission from a power transmitting apparatus, comprises a first communication unit for communicating with the power transmitting apparatus, and a second communication unit for performing communication at a speed higher than the first communication unit. The power receiving apparatus determines, by communication via the first communication unit, whether the power transmitting apparatus has a function of transmitting/receiving, via the second communication unit, information for device authentication with the power transmitting apparatus, and enables the second communication unit to execute transmission/reception of the information for the device authentication with the power transmitting apparatus via the second communication unit if it is determined that the power transmitting apparatus has the function and the second communication unit is in a disabled state.

Abstract: A power supply system for moving body, includes, a power generation unit, a power storage unit, a converter provided between the power generation unit and the power storage unit, the converter including a power storage unit-side converter terminal and a power generation unit-side converter terminal, an external connection terminal configured to electrically connect to an external device, a first switching unit configured to switch between connected and disconnected of the external connection terminal, the power storage unit, and the power storage unit-side converter terminal, a second switching unit configured to switch between connected and disconnected of the power generation unit-side converter terminal and the external connection terminal, a third switching unit configured to switch between connected and disconnected of the power generation unit-side converter terminal and the power generation unit, and a control device configured to control the first switching unit, the second switching unit, and the thi

Abstract: A tailgate deactivation system. A switch includes two terminals configured to be electrically coupled to a tailgate power circuit that supplies power to at least a portion of a tailgate of a vehicle, and an actuator configured to electrically couple the two terminals in an on state to allow power to flow in the tailgate power circuit, and to electrically decouple the two terminals in an off state to inhibit power from flowing in the tailgate power circuit.

Abstract: Systems and methods provide for battery conditioning for high voltage (HV) electrical vehicles. Battery temperatures are monitored, and responsive to one or more battery temperatures falling within designated ranges, one or more battery temperatures may be increased via heating in order to provide for more uniform battery performance and conditioning.

Abstract: The present invention provides a multi-load wireless power transfer system based on high-order Anti-PT symmetry. By introducing a “W-shaped” anti-resonance mode into a basic WPT platform, an effective Anti-PT non-Hermitian system is conveniently constructed. The “level attraction” of the anti-resonance mode is combined with the “level splitting” of the anti-resonance mode and the resonance mode, to study the “level pinning” effect of high-order Anti-PT symmetry. Compared with the traditional resonant WPT, the anti-resonant WPT has higher security, stability, transfer efficiency, and flexibility. Considering the miniaturization and integration of devices, a “meta coil” is designed by using a “synthetic dimension”, and used to construct a high-order Anti-PT symmetric system, thereby achieving multi-load efficient WPT. The new WPT technology based on the “level pinning” effect of high-order Anti-PT symmetry provides a good application research platform for enriching non-Hermitian physics.

Abstract: A power conversion device includes a major circuit part converting a power of a distributed power source into AC power corresponding to a power system, and a controller controlling an operation of the major circuit part; the controller includes an estimated value calculation part and a reactive power calculation part; the estimated value calculation part calculates an estimated value of a resistance component of a system impedance of the power system, an estimated value of a reactance component of the system impedance, and an estimated value of a voltage value of the infinite bus power system based on an active power value of a connection point to the power system, a reactive power value of the connection point, and a voltage value of the connection point.

Abstract: A system includes a plurality of electro-mechanical connectors disposed on a first electrical system. The plurality of electro-mechanical connectors includes at least a ground connector, an output power connector, a return power connector, and at least one signal connector. A power supply line in the first electrical system is connected through a current-limiting element to the output power connector. The system further includes a circuit detecting a loopback signal received from a second electrical system via the at least one signal connector indicating presence of a power connection between the first electrical system and the second electrical system, and a switch activable in response to a detected loopback signal to bypass the current-limiting element to pass a full unrestrained current and voltage on the power supply line to the output power connector.

Abstract: An electronic device for simulating load currents when testing a tow-vehicle brake controller is described. The electronic device utilizes current monitoring circuitry to measure a current of an input signal from the tow vehicle. The electronic device also includes a series of resistors that are arranged in parallel on the input signal as wells a series of switches (e.g., relays or transistors) that can activate and deactivate each one of the resistors. Microcontroller circuitry within the electronic device controls the series of switches based on the measured current of the input signal, and, by extension, controls the series of resistors applied to the input signal. In so doing, the electronic device is able to simulate a desired load current on the tow-vehicle brake controller being tested.

Abstract: A control system and method of controlling a utility vehicle. The system may include a controller, an energy mode input associated with a user input request to select one of at least two power modes, an implement control input associated with a user input request to select a movement of an implement, a drive control input associated with a user input request to select a movement of a drive system to propel the utility vehicle, and an attachment type input to further refine the allowed operating power states. The controller is adapted to determine a change between the plurality of operating power states in response to user input requests to automatically optimize machine performance and efficiency. Each of the plurality of operating power states includes a maximum electric current output and a maximum speed output of the electric motor.

Abstract: A power supply control device is to be installed in a vehicle. The power supply control device controls power supply via a semiconductor switch and a fuse by turning the semiconductor switch ON or OFF. The semiconductor switch and the fuse are mounted on a circuit board. In the fuse, two long plate-shaped terminals are arranged in a row. The fusing portion and a part of the two terminals are covered with a housing having heat resistance. The two terminals are disposed in a current path of a current flowing through the semiconductor switch. The current flows through the fusing portion. If the temperature of the fusing portion exceeds a predetermined temperature, the fusing portion is fused.

Abstract: A boost converter system including a power source, an inductor stage, and a voltage multiplication stage. The power source outputs a first direct current (DC) to the inductor stage. The inductor stage includes a plurality of diodes and a plurality of inductors. The inductor stage includes a first switched inductor cell and a second switched inductor cell. The first switched inductor cell is wired to a first metal-oxide-semiconductor field-effect transistor (MOSFET). The first MOSFET is wired to the voltage multiplication stage. The second switched inductor cell is wired to a second MOSFET. The second MOSFET is wired to the voltage multiplication stage. The voltage multiplication stage receives a first DC current from the first MOSFET and the second MOSFET. The voltage multiplication stage includes at least one voltage multiplier cell (VMC). The VMC includes a plurality of diodes and plurality of capacitors.

Abstract: The present disclosure generally relates to systems and methods for implementing power a power split between a first and a second power source in a fuel cell powertrain system. The method includes receiving an input into a processor of the fuel cell powertrain system, determining an output by the processor, communicating the output by the processor to a system controller and determining a power split by the system controller. The first power source includes a fuel cell system and the second power source is selected from a battery system or an engine, and the input includes a life or health of at least one of the first power source or the second power source.

Abstract: A distributed hybrid propulsion system is provided and includes an engine assembly that includes an engine, which is non-propulsive, an energy storage element, a motor-generator and a common bus to which the engine assembly, the energy storage element, the motor-generator and the controller are connected. The common bus includes bi-directional power flow control elements, which are controllable to manage bi-directional power flow between the engine assembly, the energy storage element and the motor-generator.

Abstract: An electronic device and a control method for the electronic device are provided, and relate to the field of wireless charging technologies, to improve compatibility of a power receiving terminal device in wireless charging with a power transmitting terminal device by improving ASK communication quality. The electronic device includes a device circuit (50), a voltage conversion circuit (203), a rectifier circuit (202), a resonant circuit (201), and a modulation circuit (204). The resonant circuit (201) includes a resonant inductor (L2) and a resonant capacitor control circuit (ci1) connected in series to the resonant inductor (L2). A first end of the resonant inductor (L2) is coupled to the rectifier circuit (202), a second end of the resonant inductor (L2) is coupled to a first end of the resonant capacitor control circuit (ci1), and a second end of the resonant capacitor control circuit (ci1) is coupled to the rectifier circuit (202).