An integrated module of an OBC and an inverter includes: an OBC primary side circuit and a plurality of transformers converting, when 3-phase alternating current (AC) voltages are received from a fuel station, the 3-phase AC voltages in form and level and transmitting the converted voltages into a secondary side; and an inverter switch turned off in a charge mode in which a high capacity vehicle battery is charged, to rectify an output voltage of a secondary side of each of the plurality of transformers by a body diode included in each switching element for an inverting function.

A hybrid power control apparatus for a vehicle includes an inverter module disposed in a housing; a low DC-DC converter (LDC) module disposed in the housing; and a component mounting part attachably/detachably assembled in the housing. In the hybrid power control apparatus, the inverter module includes a plurality of power modules; a cooler contacts both surfaces of each power module so as to carry out heat conduction, the cooler assembled to the component mounting part; and a capacitor module assembled in a form where the capacitor module is stacked on one side of the cooler so as to carry out heat conduction. As a result of this structure, cooling efficiency can be improved, and the inverter module, the converter module, and a controller are packed in one closed space, thereby reducing the size of the hybrid power control apparatus.

A hybrid drive system has a battery and a combustion engine for energy sources. The system has a traction motor, a generator, a variable voltage converter (VVC), a motor inverter, a generator inverter, a bus coupling the VVC to the inverters, and a controller. The controller regulates engine speed, motor torque, and generator torque. The engine speed is determined according to a driver torque demand. In normal conditions, 1) the controller regulates the engine speed by modifying a generator torque command, and 2) the bus voltage is regulated using the VVC and battery. When the controller detects a fault in which the battery and VVC become unavailable for regulating the bus voltage, then the controller regulates a motor inverter power output to match a sum of a generator inverter power output and an estimated power loss of the inverters in order to regulate the bus voltage.

A method for managing the charge state of a battery includes activating a float-charge phase of the battery, in which the battery is intermittently charged with a view to maintaining the charge state thereof above a predetermined target charge-state value. The method also includes detecting critical conditions of use of the battery likely to prevent the battery charge state from being maintained above the predetermined target charge-state value and increasing the predetermined target charge-state value when the critical conditions of use of the battery are detected, such as to anticipate activating the battery float-charge phase.

A charge-discharge control device charges a power storage device when the charge-discharge control device acquires no warming-up operation command. The charge-discharge control device, when the charge-discharge control device acquires the warming-up operation command, performs warming-up operation by repeated alternatingly charging the power storage device and discharging the power storage device via a first discharger. When a determiner determines during the warming-up operation that an amount of power discharged via the first discharger does not satisfy a criterion, the charge-discharge control device performs the warming-up operation by repeated alternatingly charging the power storage device and discharging the power storage device via a second discharger.

A dual-mode choke coil includes: a lower core that has a first through fourth columnar body; a first upper core and a second upper core; a first coil in which two coil conductors are respectively wound onto the first columnar body and a third columnar body in mutually different directions and are connected in series; and a second coil in which two coil conductors are respectively wound onto a second columnar body and the fourth columnar body in mutually different directions and are connected in series, and in which the winding direction of the coil conductor of the second columnar body is the same as that of the coil conductor of the first columnar body. With this configuration, both common mode noise and normal mode noise can be reduced.

An electronic circuit includes: a bus bar connected to a power source having a positive terminal and a negative terminal; and a plurality of object switching elements as driving objects connected to the bus bar, the object switching elements forming a parallel connected circuit. The object switching elements include minimum on-resistance elements having minimum on-resistance compared to other object switching elements in a corresponding current region among mutually different current regions; and connection points between the minimum on-resistance elements and the bus bar are located at different locations to have mutually different inductance of respective conduction paths between the power source to the connection points located at the different locations.

An electric vehicle includes an electric machine, a generator generating a first AC output current, an internal combustion engine driving the generator, and a first electric plug-in charging device. When the engine is started, the generator supplies the battery with charging power. The first plug-in charging device is geometrically configured to be connectable with single phase AC power mains to supply the battery with charging power in a vehicle deactivated state. The first plug-in charging device is configured for a maximum electric power voltage load of 240 volts and a maximum current strength of 32 amperes. A second electric plug-in charging device is integrated into the vehicle. A DC charging station is connectable to the second charging device in the deactivated state so the DC charging station is usable either exclusively or simultaneously with the single phase AC power mains for charging the battery.

An electric power supply system configured to supply electric power to an electrical load device in accordance with a current requirement. The electric power supply system includes an engine configured to output rotational power, a generator configured to receive the rotational power and to supply a current to the electrical load device. The generator includes a rotor, and a stator including a winding and a stator core with the winding wound thereon, a magnetic circuit for the winding passing through the stator core, and a supply current adjustment device configured to adjust magnetic resistance of the magnetic circuit for the winding, to thereby change an inductance of the winding to adjust the supplied current. The electric power supply system further includes a control device configured to control the engine to adjust the output rotational power and to control the supply current adjustment device to adjust the inductance of the winding.

The present disclosure is directed to an electric drive. The electric drive may include a first power inverter, a second power inverter, and a positive DC bus connecting the first power inverter and the second power inverter. The electric drive may also include a first switch connected to the positive DC bus between the first power inverter and the second power inverter. The electric drive may include a second switch connected to the positive DC bus between the first power inverter and the second power inverter. The electric drive may further include a control unit connected to the first switch and to the second switch. The control unit may be configured to selectively allow current to pass through the first switch and the second switch.