An embodiment solar cell system includes a first photovoltaic (PV) module and a second PV module connected in series with each other, a differential power processing (DPP) converter configured to convert electricity generated by the first PV module and the second PV module, using a magnetic material having a multi-winding structure, and to provide the converted electricity to a battery, and a control signal generator configured to generate a control signal that controls a main switch for controlling an input-side current path and an output-side current path of the DPP converter, and to adjust a pulse width of the control signal such that a magnetizing current of the DPP converter becomes substantially zero.

A flying apparatus includes a main structure and a rotative wing surface, the rotation of the wing surface allowing stabilizing the apparatus (100). A fuselage hangs from the wing surface around a hanging point, allowing the wing surface and the fuselage be moveable independently with respect to each other and the wing surface is configured as a disc to manoeuvre the apparatus and including one or more elements acting as security and secondary command and control surfaces, orienting the apparatus in desired directions. The main structure and wing surface can overwrap at least partially the the fuselage in order to improve the aerodynamic performance. The airframe or fuselage and the wing surface are rotatable around any of three rotational axes independently.

A vehicle-mounted solar power generation device includes a solar panel, a solar battery that is a battery temporarily storing electric power, and a controller configured to perform control by switching between an electric power generation mode in which the solar battery is charged with a generated electric power of the solar panel and an electric power saving mode in which at least the charging of the solar battery is stopped such that power consumption is suppressed in comparison with the electric power generation mode. The controller determines to switch between modes based on the output voltage of the solar panel. In the electric power saving mode, the controller restricts a switch to the electric power generation mode based on any of the frequency of switching between modes, the amount of electric power stored in the solar battery, and the state of stoppage of a vehicle.

An electric vertical take-off and landing (eVTOL) vehicle is positioned to be in a charging position on the ground, wherein the eVTOL vehicle is capable of performing vertical take-offs and landings. The battery is charged while in the charging position on the ground using a wind turbine that includes the rotor.

The invention discloses a large drone that is powered by solar energy. In addition, the drone includes a large, lightweight fuselage that not only keeps balance and stability but also reduces the required power during flight.

Walking VTOL vehicles and related systems and methods are disclosed. A representative system can include one or more vertical thrust propulsion systems for providing vertical thrust for the vehicle, one or more horizontal thrust propulsion systems for providing horizontal thrust for the vehicle, and leg elements that are rotatable between a first configuration in which each leg element extends downwardly and a second configuration different from the first configuration. A representative method of operating a vehicle includes using vertical thrust to raise the vehicle upward, rotating a leg element forward, lowering the vehicle, and then rotating the leg element rearward to propel the vehicle forward.

A mobile automobile service and charging Center 50 with a trailer opening to intake multiple vehicles simultaneously by using multiple walls extending to the exterior used to lift and transverse automobiles to the interior for service. Interior mechanisms are hydraulic, magnetic, and air pressure operated to further lift and modify the position of the vehicle in service. The interior includes multiple electric charging stations, an interactive maintenance display center, multiple automated sensing devices used to detect car type and diagnose malfunctions, internal/external part delivery portals, lounge, a restroom, conference room, and mechanic sanitation areas. In all configurations the mobile automobile service and charging Center is a powered double decker, solar power supplemented mobile trailer. When dispatched for diagnostic and maintenance the Center will externally to the trailer or internally lift automobiles to an appropriate height based on the best ergonomic position for the mechanic and transverse the vehicles in to the mobile Center based on sensor feedback and mechanic biometrics. The Center provides multiple options for service from below or above the automobile, with floors that lower and a roof that will open to allow for above automobile servicing. Telescopic and piston driven support chairs and platforms are internally deployed to allow mechanics an efficient ergonomic seating, standing, or lying position to provide service without discomfort. Contained within the mobile service center are sensors designed to diagnose, track automobile location and service history, track tools and to display technologies to facilitate high efficiency automobile service; such as alternator replacements, oil changes, battery charging, hose replacements, spark plug replacements and other diagnostic, service, and charging services. All data gathered by the interactive service Center is logged and analyzed by intelligent predicting software to provide customers with the best performance and service data for each Automobile that enters and exits the Center.

A solar powered electric motorized scooter is provided for use with a battery, the solar powered electric motorized scooter comprising a base, a flexible foot pad which has a margin, the margin attached to the base, a plurality of flexible solar cells mounted on the base, an electric motor which is in electrical communication with the flexible solar cells, a front wheel, a back wheel, the wheels rotatably disposed on the base and in motive communication with the motor, a steering tube rotatably mounted to the base and attached to a bracket that retains the axle of the front wheel and a handlebar, which terminates the steering tube, wherein the flexible foot pad is configured to flatten under the pressure of a rider and to curve upward when not under pressure of the rider.

A solar controller is configured to control a solar unit including a solar panel, a step-up and step-down DC-DC converter configured to receive electric power generated by the solar panel, convert the received electric power to a predetermined electric power, and output the predetermined electric power, and a regulator circuit provided between an output of the DC-DC converter and a ground potential. The solar controller includes one or more processors are configured to: acquire an input and output voltages of the DC-DC converter; acquire an input and output currents of the DC-DC converter; control the regulator circuit and a plurality of switching elements that respectively make up a plurality of arms included in the DC-DC converter; and determine whether an abnormality in each of the arms has occurred based on the input and output voltages or the input and output currents, that is acquired.

A method includes receiving a request from a requesting vehicle to locate a parking spot having capacity to receive solar power, determining a parking location having the capacity to receive solar power, based on a location of the requesting vehicle, the request, and a parking map that indicates an expected charging rate at each of a plurality of parking locations, and transmitting the determined parking location to the requesting vehicle.