A rechargeable battery system for a lift device includes a battery configured to power at least one component of the lift device, a heating system configured to selectively provide heat to the battery, and a battery charger connected to the battery and to the heating system. The heating system is configured to selectively receive power from the battery through a battery power connection or from the battery charger through a battery charger power connection.

The invention relates to a foil (100) for a double curved solar panel, the foil showing multiple incisions having two closed ends and dividing the foil in mechanically interconnected areas, wherein the foil comprises a first group of incisions (102) having a first orientation and a second group of incisions (104) having a second orientation, a first closed end of the incision located at a mechanical interconnection (110) between a first cell (120) and a second cell (122) and a second closed end located at a mechanical interconnection (112) between a third cell (124) and a fourth cell (126), the incision bordered by a mechanical interconnection (114) between the first cell (120) and the third cell (124) and bordered by a mechanical interconnection (116) between the second cell (122) and the fourth cell (126), the incisions partly having a first orientation and partly having a second, different orientation.

An electric work vehicle comprises: a battery configured to store electric power; a motor generator conductively connected to the battery; a power transfer device having a power output shaft configured to transfer motive power from the motor generator; and a controller configured to switch between a first mode and a second mode.

A work vehicle is configured to perform an activity in a work area. The work vehicle includes a chassis, a plurality of ground engaging members coupled to the chassis for movement of the chassis in the work area, a generator configured to generate energy from performance of the activity of the work vehicle in the work area, an energy storage device connected to the generator to store energy generated by the generator and configured to be charged to an initial charge, and a controller configured to establish an initial charge setting corresponding to the initial charge of the energy storage device based on at least one anticipated activity input of the work vehicle.

In a permanent magnet synchronous motor drive system, phase currents can be used to calculate a current that produces no shaft torque and only motor losses and a current that only produces shaft torque. These currents can be controlled to be resupplied into the motor drive system to a desired amount on a continuous basis to maintain a DC energy storage device voltage at a desired safe level. The calculated currents are resupplied to the motor drive system such that voltage levels within the DC energy storage device that approach a voltage maximum limit are transferred to the motor in the form of current that is dissipated by the motor without losing efficiency and control of driving a load with the motor.

Provided is a wind powered system which includes a plurality of wind tunnels, a plurality of rotary fans provided in each wind tunnel, a plurality of alternators connected to the plurality of rotary fans to generate electricity, a transformer connected to the plurality of alternators, electric components connected to the transformer, and a battery connected to the transformer and the electric components. The transformer is supplied with the electricity generated by the alternators and outputs electrical energy with a voltage to be supplied to at least one of the electric components and the battery. The plurality of wind tunnels have a plurality of intake inlets which are separated and apart from each other and a single outlet shared by the plurality of wind tunnels.

Utility vehicles include ground engaging members, a frame supported by the ground engaging members, a motor supported by the frame operably coupled to the ground engaging members, and a battery configured to provide electrical power to the motor. The battery may be removable and configured to be easily charged by outside power sources such as generators and external batteries. A charger may be configured to receive instructions to charge the battery using a specific charger operating characteristic. The vehicle may also include a variety of accessory ports configured to electrically couple to accessories that use AC or DC power.

Pickup trucks with an internal combustion engine (ICE), all electric, hybrid, plug in hybrid, must walk on loading flat bed, to load or unload, two stationary side walls, one-fold down tail gate, two taillights one on each side at the rear next to the fold down tail gate. With two full doors, with two full doors and with two smaller rear doors, or four full doors. It takes less compressed clean air to drive the DC alternators or DC generators from the compressed clean air engine. Also, the vehicle does drive 100% electric. A combination 100% electric and 100% compressed clean air system. No other vehicle has this kind of system.

A work vehicle is configured to perform an activity in a work area. The work vehicle includes a chassis, a plurality of ground engaging members coupled to the chassis for movement of the chassis in the work area, a generator configured to generate energy from performance of the activity of the work vehicle in the work area, an energy storage device connected to the generator to store energy generated by the generator and configured to be charged to an initial charge, a work member, and a controller configured to establish an initial charge setting corresponding to the initial charge of the energy storage device based on at least one anticipated activity input of the work vehicle.

The disclosure relates to a work machine, comprising a primary energy source for feeding electric energy into a link, a gear for performing a task of the work machine, at least one electric drive connected to the link in order to operate the gear of the work machine, a holding brake for fixing or releasing the gear, and an energy store which is connected to the link in order to provide electric energy demanded from the link upon actuation of a gear and/or to absorb electric energy fed into the link. According to the disclosure, during an emergency lowering of the gear, the at least one electric drive to convert the kinetic energy into electric energy and to feed it into the link. In the event of an unavailability or failure, the primary energy source is configured to absorb the energy fed into the link by the electric drive.