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 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 power feeding system of the present disclosure includes a control unit. In a case where a magnitude of supply destination power is smaller than an upper limit value of the power supply capability of the power source, the control unit controls the charge/discharge control circuit so as to meet the supply destination power based on power output from the power source, and to charge the storage battery with power which is a difference obtained by subtracting the supply destination power from the upper limit value of the power supply capability of the power source. In a case where the magnitude of the supply destination power is more than or equal to the upper limit value of the power supply capability of the power source, the control unit controls the charge/discharge control circuit so as to meet the supply destination power by both the power source and the storage battery.

A power feeding system of the present disclosure includes a control unit. In a case where a magnitude of supply destination power is smaller than an upper limit value of the power supply capability of the power source, the control unit controls the charge/discharge control circuit so as to meet the supply destination power based on power output from the power source, and to charge the storage battery with power which is a difference obtained by subtracting the supply destination power from the upper limit value of the power supply capability of the power source. In a case where the magnitude of the supply destination power is more than or equal to the upper limit value of the power supply capability of the power source, the control unit controls the charge/discharge control circuit so as to meet the supply destination power by both the power source and the storage battery.

The invention relates, among other things, to a method of making a thin panel (10) for outdoor applications, comprising, among other things, the following steps: a) providing a deep-drawable film (10) of a transparent plastic, b) deep-drawing the film (11) in a mold (34), c) mounting a structure (19) having solar cells (32) on an inner face (16) of the deep-drawn film (12), d) placing the deep-drawn film (12) with mounted structure (19) in a cavity (33) of a mold (34) having in particular at least two mold halves (13, 14), e) introducing a liquid polyurethane casting compound (24) into the cavity (33) of the mold (34) and spreading the polyurethane casting compound (24) over an inner face (18) of the structure (19) and/or over the inner face (16) of the film (12), f) curing the polyurethane casting compound, in particular with the mold closed, to form a reinforcement layer (30), or comprising the following steps j) and k) instead of the steps e) and f): j) introducing a granular particle foam mass into the cavity (33) of the mold (34) and spreading over an inner face (18) of the structure (19) and/or over the inner face (16) of the film (12), k) baking and curing the particle foam mass, in particular with the mold closed, to form a reinforcement layer (30).

The invention relates, among other things, to a method of making a thin panel (10) for outdoor applications, comprising, among other things, the following steps: a) providing a deep-drawable film (10) of a transparent plastic, b) deep-drawing the film (11) in a mold (34), c) mounting a structure (19) having solar cells (32) on an inner face (16) of the deep-drawn film (12), d) placing the deep-drawn film (12) with mounted structure (19) in a cavity (33) of a mold (34) having in particular at least two mold halves (13, 14), e) introducing a liquid polyurethane casting compound (24) into the cavity (33) of the mold (34) and spreading the polyurethane casting compound (24) over an inner face (18) of the structure (19) and/or over the inner face (16) of the film (12), f) curing the polyurethane casting compound, in particular with the mold closed, to form a reinforcement layer (30), or comprising the following steps j) and k) instead of the steps e) and f): j) introducing a granular particle foam mass into the cavity (33) of the mold (34) and spreading over an inner face (18) of the structure (19) and/or over the inner face (16) of the film (12), k) baking and curing the particle foam mass, in particular with the mold closed, to form a reinforcement layer (30).

A vehicle electricity supply control system, including: an acquisition section configured to acquire a power consumption of an auxiliary system, the auxiliary system being supplied with electricity from an auxiliary battery; and a control section configured to, in a first supply mode in which electricity is supplied to a drive battery and the auxiliary system and in a case in which the power consumption of the auxiliary system is greater than a predetermined value, control a ratio of electricity supplied to the drive battery and the auxiliary system such that an electricity supply amount to the auxiliary system becomes greater than in a case in which the power consumption of the auxiliary system is less than the predetermined value.

A vehicle electricity supply control system, including: an acquisition section configured to acquire a power consumption of an auxiliary system, the auxiliary system being supplied with electricity from an auxiliary battery; and a control section configured to, in a first supply mode in which electricity is supplied to a drive battery and the auxiliary system and in a case in which the power consumption of the auxiliary system is greater than a predetermined value, control a ratio of electricity supplied to the drive battery and the auxiliary system such that an electricity supply amount to the auxiliary system becomes greater than in a case in which the power consumption of the auxiliary system is less than the predetermined value.