Disclosed herein is an electric vehicle including a power source, an electric motor adapted to be supplied with electric power from the power source for vehicle driving, a sheet-shaped solar battery for electric power generation, a storing portion for storing the sheet-shaped solar battery in its nonoperating condition, and a connecting unit for allowing the supply of electric power from the sheet-shaped solar battery to at least one of the electric motor and the power source, wherein when the sheet-shaped solar battery is used to perform electric power generation, the sheet-shaped solar battery is taken out of the storing portion and then spread to effect photovoltaic power generation.

An energy generation and accumulation system includes a housing having a first portion and a second portion, the second portion being environmentally sealed from the first portion, the first portion having an air inlet portion and an air outlet portion, the second portion having first and second sealed compartments, a power generation device providing; an air catching device disposed within the first portion, the air catching device for creating an axial rotational force on a first end of a shaft coupled to the air catching device. A generator for creating an electrical output and an accumulator disposed within the second sealed compartment for storing the electrical output of the generator is provided along with electronics for receiving, controlling and conditioning the output energy of the generator. The energy generation and accumulation system is capable of charging the accumulator while the system is in motion and while stationary.

An auxiliary power supply system for an electric motor of an electric vehicle, comprising supercapacitors to generate a first auxiliary power supply, batteries to generate a second auxiliary power supply, one single common bidirectional converter and a control logic, which is configured for: (i) supplying power to the electric motor by means of network power supply voltage and through the energy stored in the supercapacitors during the acceleration of the electric vehicle; (ii) charging the supercapacitors during the braking of the electric vehicle, harvesting kinetic energy; (iii) supplying power to the electric motor through the sole energy of the batteries in the absence of the network power supply voltage; and (iv) charging the batteries during the running at constant speed and the parking of the electric vehicle.

The vehicle-mounted power source device comprising: a low-voltage battery; a high-voltage battery; a boost unit that boosts electrical power for charging the high-voltage battery; a solar panel that converts solar light to electrical power; a bi-directional buck-boost unit that boosts/bucks the electrical power converted by the solar panel; and a control unit that performs control in a manner so as to charge the low-voltage battery by means of electrical power of which the voltage has been altered by the buck-boost unit. When the amount of stored electrical power at the low-voltage battery is at least a predetermined value, the control unit performs control in a manner so that the electrical power stored at the low-voltage battery is boosted by the boost unit and the bi-directional buck-boost unit, and the high-voltage battery is charged by means of the boosted electrical power.

The space-expandable and easily transportable caravan according to present invention is a cubical caravan, wherein the caravan has a structure in which both sides expand symmetrically, characterized by: comprising a caravan (100) which has a cubical upper main body (110) having space expandable and collapsible panel unit and a lower main body carrier (120) integrally attached thereunder to support the upper main body (110); the space expandable and collapsible panel unit is expandable from sides comprising external panels (10a, 10b) and internal panels (20a, 20b) on each of side walls of the caravan, wherein each external panel (10a, 10b) comprises roof panel (11a, 11b) which forms an expansion roof by spreading it outwards, and expansion external panel (12a, 12b) which forms an expanded side outer wall, and each of the internal panel (20a, 20b) comprises floor panel (21a, 21b) which forms an expansion floor by spreading it downwards, and expansion side panel (22a and 23a, 22b and 23b) which forms the front and back expanded outer wall. The space-expandable caravan (100) of present invention can be set up by conveniently loading onto a cargo box of a truck by lifting the caravan using four jacks, and easily unloading from the cargo box to a desired place.

A solar collector includes a roller rotatably attached to a vehicle. A carrier fabric panel is attached on one end to the roller. Side guides are attached the sides of the carrier fabric panel. Solar cells are connected in series and are attached to the carrier fabric panel. The solar cells are connected to an electrical power storage system. Electrical leads are attached to the carrier fabric and electrically coupled to the solar cells. Electrical conductors are attached to the carrier fabric between the solar cells and the right and left guides or are provided with retainer strips. A slip ring connector is disposed on the roller for electrically coupling the electrical conductors to an electrical power storage system. The solar energy collected may be used to power actuatable accessories or passive systems that may draw power when the vehicle is not being operated.

A vehicular charging control system using a solar panel includes: a first battery; a calculation unit that calculates a chargeable electric power amount (an amount of electric power with which the first battery can be charged until the SOC of the first battery reaches a predetermined value); a determination unit that determines whether regenerative electric power is being generated; and a control unit that controls charging of the first battery with electric power generated by the solar panel. The control unit allows the first battery to be charged with the electric power generated by the solar panel up to an upper limit set to the chargeable electric power amount when regenerative electric power is not being generated, and up to an upper limit set to an electric power amount obtained by subtracting the regenerative electric power amount from the chargeable electric power amount when regenerative electric power is being generated.

A self-powered laminated switchable glass system. The laminated switchable glass system having an interior and exterior tempered glass layer. A transparent luminescent solar concentrator layer and a switchable glass film layer is disposed between the exterior and interior glass layer. The solar layer provides power to the switchable glass film layer to allow selective opacity of the switchable glass film.

A transportation vehicle may be equipped with electrical energy harvesting systems to harvest electrical energy for use. By way of example, in the transportation vehicle, a Venturi system may be used to receive an air flow and the speed of the air flow increase in a constricted area of the Venturi system, the air flow containing a large amount of kinetic energy. A plurality of electrical energy harvesting systems is disposed in the Venturi system and is configured to convert the kinetic energy contained in the accelerated air flow into electrical energy that can be used to power on-board electronics as well as one or more on-board batteries in the transportation vehicle, as the transportation vehicle is in motion.

A system for controlling a vehicle including a solar cell includes: a high-voltage battery; a low voltage DC-DC converter (LDC) down-converting a voltage of the high-voltage battery; an auxiliary battery and an electrical load receiving the down-converted voltage from the LDC; a solar cell; a first solar cell converter converting output power of the solar cell into a voltage corresponding to a voltage of the auxiliary battery; a second solar cell converter converting the output power of the solar cell into a voltage corresponding to a voltage of the high-voltage battery; and a controller controlling operations of the LDC, the first solar cell converter, and the second solar cell converter based on a result of comparison between the output power of the solar cell and power consumption of the electrical load and based on a state of charge (SOC) of the auxiliary battery.