Methods and systems for power management using a power converter in transport are provided. In one embodiment, the method includes monitoring a varying AC input to the power converter. The method also includes calculating a power factor adjustment based on the monitored varying AC input. Also, the method includes a power converter controller adjusting the power converter based on the calculated power factor adjustment to cause the power converter to supply a reactive current to a varying AC load.

The present invention relates to a power generation system using a vehicle. The power generation system includes: a vehicle, such as an automobile, a train, an airplane, and an escalator, for carrying people or freight; a movement route, such as a road, a railroad, and a runway, formed so that the vehicle can move thereon; and a power generation unit including a magnetic force generation portion and a magnetic force receiving portion alternatively installed in the vehicle and the movement route, and configured to generate electric energy using electromagnetic induction occurring due to relative movement between the magnetic force generation portion and the magnetic force receiving portion according to movement of the vehicle. The power generation system using a vehicle according to the present invention has a power generation device installed in the vehicle to generate power during travel of the vehicle and also has a power generation device installed on a movement route of the vehicle to generate power, so that electric energy generated by the power generation device of the vehicle can be used or stored as power required for the vehicle and electric energy generated by the power generation device installed on the movement route can be supplied to safety facilities for safe travel of vehicles on the movement route or convenient facilities near the road, or stored in additional batteries.

A control system for a power grid includes a grid load availability evaluator that determines, for a selected time interval, an amount of electrical energy from a power grid that can be used to charge rechargeable electric vehicles by a plurality of charging segments positioned along transportation routes in a transportation network and a switching fabric to regulate, over the selected time interval, the electrical energy provided by the charging segments in accordance with the determined amount of electrical energy from the power grid that can be used to charge rechargeable vehicles.

The power supply stage (A) of an electric appliance, in particular battery chargers for charging batteries of electric vehicles or the like, comprises a power factor correction circuit (PFC), and overvoltage protection means equipped with: a switch (SW1) connected in series with a smoothing capacitor (C) of the power factor correction circuit (PFC); a control circuit (VD1) of the input voltage of the power supply stage (A) operatively connected to the switch (SW1).

A vehicle drive system, that can improve drive efficiency while maintaining vehicle stability, includes a step (S3, S105) in which a switch is made from 2WD to AWD on the basis of a cumulative slip point; a step (S12, S303) in which a switch is made from 2WD to AWD on the basis of a calculated lateral G; a step (S13, S109, S111) in which a switch is made from AWD to 2WD after the step (S3 or S105) under a first switching condition; and a step (S13, S306, S308) in which a switch is made from AWD to 2WD after the step (S12 or S303) under a second switching condition. The first switching condition and the second switching condition differ from one another.

System are described that include an energy storage device adapted to store and release energy and an ultracapacitor. The systems include a switching device coupled to the energy storage device to selectively connect and disconnect the energy storage device to a load, and a second switching device coupled to the ultracapacitor and adapted to connect and disconnect the ultracapacitor to the load. The systems may include a sensor adapted to sense the current draw at the load. The first switching device is activated to connect the energy storage device to the load when a rate of change of the current draw at the load is below a threshold, and the second switching device is activated to connect the ultracapacitor to the load when the rate of change of the current draw at the load is greater than or equal to the threshold.

A motorization apparatus for a motorized wheel comprises an axle secured to a frame of a vehicle. A rotor unit has poles of magnet material. A stator unit having slots and teeth secured to the axle is inward of said rotor to define a clearance gap therewith such that the rotor unit is rotatable about the stator core. An arrangement of coils is wound around the teeth of the stator unit, the coils adapted to be powered to induce a rotation of the rotor unit relative to the stator unit. A structure comprises hub portions rotatably mounted to the axle, the structure having lateral walls defining an inner volume for the rotor unit and the stator unit, the structure supporting the rotor unit. The structure comprises attachment members connected to spokes of the motorized wheel, located radially inward of the clearance gap between the rotor unit and the stator unit.

An electric vehicle includes a controller configured to receive sensor feedback from a high voltage storage device and from a low voltage storage device, compare the sensor feedback to operating limits of the respective high and low voltage storage device, determine, based on the comparison a total charging current to the high voltage storage device and to the low voltage storage device and a power split factor of the total charging current to the high voltage device and to the low voltage device, and regulate the total power to the low voltage storage device and the high voltage storage device based on the determination.

A transport system has a wheeled, steerable, self-powered, self-navigating carrier vehicle, having a substantially planar support frame, an on-board, rechargeable, battery-based power system, control circuitry, including GPS circuitry, on-board the carrier vehicle, adapted to drive and steer the carrier vehicle, and an upward-facing carrier interface adapted to the support frame, the carrier interface having first physical engagement elements, and a passenger pod adapted to carry both packages and persons, the passenger pod having a structural framework, a rechargeable, battery-based power system, and a downward-facing pod interface adapted to the structural framework, the carrier interface having second physical engagement elements. The passenger pod, placed upon the carrier vehicle, engages the downward-facing pod interface to the upward-facing carrier interface by the first and second physical engagement elements.

Forms of the present disclosure include an input end, and an output end connected to the input end to improve a power factor through the input end. The output end includes non-electrolytic capacitors formed at both sides of an electrolytic capacitor for output, and first inductors formed between the respective non-electrolytic capacitors and the electrolytic capacitor. Therefore, forms of the present disclosure may reduce a ripple current (current stress) at a PFC output end through a CL circuit formed at a left side with respect to the electrolytic capacitor, and reduce an input ripple current (input current stress) of a DC-DC converter through an LC circuit formed at a right side.