Abstract: A variable slew rate gate drive system for powering an electric machine. The system may include a gate driver operable for controlling each of a plurality of hybrid switch power modules between opened and closed states to facilitate powering the electric machine. The gate driver may be operable for selecting slew rates and controlling ON and OFF states of first and second semiconductor switches included as part of each power module to optimize powering of the electric machine by varying the slew rates as a function of performance characteristics of the first and second semiconductor switches.

Abstract: A vehicle system includes a first battery pack connected to a second battery pack via T-type multi-level inverter. The multi-level inverter has a plurality of inverter legs, with each inverter leg being arranged in a T-type topology. A motor is connected to the multi-level inverter and a controller is connected to the motor and the multi-level inverter. The controller including a memory storing instructions configured to cause the controller to control the multi-level inverter as a direct current (DC)-DC converter such that a circulating current passes through the motor, the first battery pack and the second battery pack.

Abstract: A vehicle system includes a first battery pack connected to a second battery pack via a flying capacitor multi-level inverter. The fling capacitor inverter has multiple inverter legs, with each inverter leg being arranged in a flying capacitor topology. A three phase motor is connected to the inverter. A controller connected to the motor and the inverter. The controller includes a memory storing instructions configured to cause the controller to control the inverter as a direct current (DC)-DC converter such that a circulating current passes through the motor, the first battery pack and the second battery pack.

Abstract: A multi-phase power inverter for an electric propulsion system includes a plurality of H-type multilevel power converters arranged between a high-voltage DC power supply and an electric machine. Each of the plurality of H-type multilevel power converters is a solid-state integrated circuit (IC) 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: 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: A multi-phase power inverter for an electric propulsion system includes a plurality of X-type multilevel power converters arranged between a high-voltage direct current (DC) power supply and an electric machine. Each of the plurality of X-type multilevel power converters is a solid-state integrated circuit (IC) 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: 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: A power module and a multi-level inverter package is disclosed. At least four conductive traces are disposed on a substrate. Each conductive trace includes an insulation board, a gate bus disposed on the insulation board, a kelvin bus disposed on the insulation board, and a semiconductor die operating as a transistor. The semiconductor die including a drain, a gate, and a source. The drain is coupled to the conductive trace. The source is coupled to the kelvin bus and to an electrical connection off of the conductive trace. The gate is coupled to the gate bus.

Abstract: A motor vehicle includes an AC (alternating current) electric motor having a stator with a plurality of stator windings, a rechargeable source of stored electrical energy, and an inverter coupled to the rechargeable source of stored electrical energy and to the AC electric motor. The system also includes one or more controllers collectively programmed to switch the inverter to provide alternating current propulsive energy from the rechargeable source of stored electrical energy to the plurality of stator windings and, using at least one of the stator windings as a boost inductor, switch the inverter to step up a voltage at a charging input coupled to the inverter to charge the rechargeable source of stored electrical energy.

Abstract: A slew rate controllable system for powering an electric machine. The system may include a plurality of power switches operable for converting a direct current (DC) input into an alternating current (AC) output suitable for electrically powering the electric machine. The system may include a gate drive system operable for controlling a slew rate associated with transitioning the switches between opened and closed states.

Abstract: Embodiments of the present disclosure are directed to power module cooling systems. In particular, some embodiments of the present disclosure relate to power module cooling systems with structures to generate three-dimensional swirling and tumbling in liquid coolant flowing within a chamber of the cooling system. Other embodiments may be disclosed or claimed.

Abstract: A vehicle includes a system for controller the vehicle. The vehicle includes a motor. The system includes an inverter, and a gate controller. The inverter has a switch for controlling current to the motor. The gate controller is configured to apply a gate current to the switch at a first on-current control level during a first switch-on stage of a turn-on operation of the switch, lower the gate current to a second on-current control level less than the first on-current control level during a second switch-on stage of the turn-on operation, and raise the gate current to a third on-current control level during a third switch-on stage of the turn-on operation, wherein the third on-current control level is greater than the second on-current control level.

Abstract: A vehicle includes a system for charging a battery of the vehicle. An electric motor couples to a charging station. A T-bridge multi-level inverter couples the electric motor to the battery. The inverter includes a first leg having a first set of switches and a first AC terminal coupled to the electric motor, a second leg having a second set of switches and a second AC terminal coupled to the electric motor and a third leg having a third set of switches and a third AC terminal coupled to the electric motor. A processor connects the third AC terminal to the charging station and controls at least one of the first set of switches to control a first current through the first AC terminal of the first leg and the second set of switches to control a second current through second AC terminal of the second leg.

Abstract: A vehicle includes a system for charging a battery of the vehicle. An electric motor couples to a charging station. a diode-clamped multi-level inverter and a processor. A diode-clamped multi-level inverter couples the electric motor to the battery and includes a first leg having a first set of switches and a first AC terminal coupled to the electric motor, a second leg having a second set of switches and a second AC terminal coupled to the electric motor and a third leg having a third set of switches and a third AC terminal coupled to the electric motor. The processor connects the third AC terminal to the charging station and control at least one of the first set of switches to control a first current through the first AC terminal and the second set of switches to control a second current through the second AC terminal to charge the battery.

Abstract: A vehicle includes an inverter having a power module. The power module includes a high side bus, a low side bus and an alternating current (AC) output bus. The high side bus includes a first switch, wherein a high side current is configured to flow through the first switch in a first direction. The high side bus is disposed in a plane. The low side bus includes a second switch, wherein a low side current is configured to flow through the second switch in the first direction. The low side bus is parallel to the high side bus. The alternating current (AC) output bus is parallel to the high side bus and the low side bus, wherein an output current flows through the AC output bus in a second direction opposite to the first direction.

Abstract: A vehicle includes a system for charging a battery of the vehicle. The system includes an electric motor couplable to a charging station, a capacitor-clamped multi-level inverter, and a processor. The capacitor-clamped multi-level inverter is couples the electric motor to the battery and includes a first leg having a first set of switches and a first AC terminal coupled to the electric motor, a second leg having a second set of switches and a second AC terminal coupled to the electric motor and a third leg having a third set of switches and a third AC terminal coupled to the electric motor. The processor connects one of the third AC terminal and a neutral point of the electric motor to the charging station and control at least one of the first set of switches and the second set of switches to charge the battery through the electric motor.

Abstract: A charging box performs a direct current fast charging (DCFC) session of a recipient by a donor, e.g., during a vehicle-to-vehicle (V2V) charging session, and includes a portable housing, disconnect devices connected to a high-voltage (HV) bus to connect/disconnect respective inlet and outlet charging ports to/from the bus, and multiple direct current-to-direct current (DC-DC) converters. A high-voltage-to-high-voltage (HV-HV) converter is connected to the bus. An optional high-voltage-to-low-voltage (HV-LV) converter may be connected to the HV-HV converter. An optional low-voltage (LV) energy storage device is connected to the housing and HV-LV converter. A communication processing unit (CPU) establishes two-way communication between the donor and recipient. A system controller selectively pre-charges the bus, recharge the energy storage device, and selectively command offloading of a DC charging current from the donor, through the HV-HV converter, and to the recipient.

Abstract: Multi-switch module packaging for a multilevel inverter is provided. A multilevel inverter is connected to the battery. The multilevel inverter includes three levels, each of the three levels having a first module and a second module. The first module is formed on a first insulating substrate material, and the second module is formed on a second insulating substrate material separate from the first insulating substrate material. The first module includes a first switch coupled to the battery via a positive power rail, a second switch coupled to the battery via a negative power rail, and a third switch coupled to the second module. The second module includes another first switch coupled to the battery, another second switch coupled to the battery, and another third switch coupled to the first module. The first module includes four terminals and the second module includes another four terminals.

Abstract: An electric vehicle includes a drive system that performs a method of transferring power between a vehicle and an external location. The drive system includes a battery, a rectifier, and a processor. The rectifier is one of a two-level rectifier and a multi-level rectifier. The processor is configured to connect the rectifier between an alternating current (AC) port of an outlet of an external location and the battery. The rectifier is configured to convert between an AC power at the AC port on an external side of the rectifier and a direct current (DC) power at a vehicle side of the rectifier in order to transfer power bi-directionally between the external location and the battery.

Abstract: A charging system of a vehicle includes a first charge port selectively connectable to a battery system of the vehicle, the first charge port configured to receive electrical power from a power source to charge the battery system, and a second charge port selectively connectable to the battery system of the vehicle, the second charge port connected to a bi-directional charger. The charging system also includes a controller configured to connect the battery system to the first charge port and control a first charging operation to charge the battery system, connect the battery system to the second charge port, and control a second charging operation to supply electrical power to charge an external energy storage system.