A light rail transit system has a railcar having a roller coaster wheel assembly, solar panels, a battery bank, an inverter, a solar charge controller, and a power rail contactor. The light rail system further has a rail system having a first riding rail and a second riding rail for receiving the roller coaster wheel assembly, and a power rail for providing backup power to the railcar via the power contactor, the power rail extending less than the length of the first riding rail and second riding rail and only supplying current when the power rail contactor of the railcar is in contact therewith.

Wind-powered generator devices, systems, and methods are described that include a wind turbine, an electrical converter to convert variable frequency power output from the wind turbine to fixed frequency electricity for storage in a vehicle or other battery or to power an electrical device, a support member to which the wind turbine is attached, a mounting device to which a bottom end of the support member is attached, wherein the mounting device attaches the wind-powered generator device to a vehicle or another object or a surface, and an elevating device that includes a first connection to which a bottom end of the support member is attached and a second connection to which the mounting device is attached. The wind turbine and support member are configurable in a vertical operating position that is raised and in a horizontal retracted position that is lowered when the wind turbine not in operation.

A system and a method of controlling a solar roof of a vehicle are provided. The system includes a solar cell panel and a controller that controls charging of a main battery and an auxiliary battery using power generated from the solar cell panel. A light amount sensor senses the amount of light collected in the solar cell panel and a temperature sensor measures a surface temperature of the solar cell panel.

The present invention relates to new energy vehicle field, and more particularly to vehicle-mounted tracking solar power generation system without photoelectric sensor. The current vehicle-mounted thin-film solar power generation device has a low power generation, inductive tracking technology has high cost and large volume, so neither of them can meet the electricity demand of new energy vehicles, therefore, at the moment when the photoelectric conversion rate is difficult to effectively improve in the short term, making the vehicle-mounted photovoltaic power generation system not only able to track but also has practicality, has become a technical problem that needs to be solved urgently in the vehicle-mounted solar charging industry, the present invention provides a solar tracking technology that adopts a combination of the orbital device and the platform, does not require real-time tracking and photoelectric sensors, and solves the above-mentioned technical problems well.

A vehicle electrical system includes a battery, a customer connection point, a switch electrically connected in series between the battery and the customer connection point, a solar panel electrically connected to a node between the battery and the switch, and a computer communicatively coupled to the switch. The computer is programmed to instruct the switch to close upon determining that a voltage of the solar panel is greater than a voltage of the battery.

Systems and methods for charging electric vehicles and for quantitative and qualitative load balancing of electrical demand are provided.

A high-voltage battery for a motor vehicle, the operating voltage of which is greater than 12 V, in particular, greater than 50 V, having two power connections at a high-voltage network power system of the motor vehicle, which can be connected without voltage through first safety contactors provided inside a housing of the high-voltage battery, and storage cells for electrical energy that are connected to the power connections via the first safety contactors. The high-voltage battery additionally has two charging terminals, which are connected to the storage cells by circumventing the first safety contactors by way of charging lines.

The present disclosure is a lightweight, portable solar tracker assembly that has a bottom frame coupled to a rotation drive disc coupled to a rotational linear actuator and a middle frame rotatably coupled to the bottom frame via the rotation drive disc such that when activated, the middle frame rotates. The assembly further has a solar array mounting frame coupled to the middle frame and comprising a vertical linear actuator coupled to the middle frame such than when activated, the solar array mounting frame moves vertically, and when the middle frame rotates, the solar array mounting frame rotates and at least one solar cell fixedly coupled to the solar array mounting frame. In addition, the assembly has a processor configured to determine a position in a sky of a sun, actuate the vertical linear actuator and the rotational linear actuator so that the at least one solar cell is aligned with the sun.

The invention relates to an electric or hybrid means of transport comprising a high voltage bus and a low voltage bus. The high voltage bus is for delivering energy to at least one propulsion motor. The low voltage bus is for delivering energy to parts operating at low voltage. The electric or hybrid means of transport is equipped with a solar panel, the panel comprising groups of solar cells connected to a primary bus of an associated distributed maximum power point tracker. The distributed maximum power point tracker having a secondary bus to exchange energy with other distributed maximum power point trackers. The secondary bus of at least one of the distributed maximum power point tracker is connected to the low voltage bus, thereby eliminating the need for a DC/DC converter between the high voltage bus and the low voltage bus.

There is provided a solar power generator having a variable shape which can secure a maximum solar power generation area by being unfolded horizontally and upward in the case of performing solar power generation and can be transformed to have a minimum volume by being transformed into a box shape in the case of not performing solar power generation. The solar power generator includes a base frame, four solar panel members for forming a box which are respectively coupled to four sides of the base frame, a rotation drive source for rotating each of the four solar panel members, a tube member, a lower surface of which is fixed to a center portion of an upper surface of the base frame, an air injection and discharge part, a top plate for the tube member, and a plurality of solar panel assemblies for tube member sidewalls.