A vehicle includes a wireless communication device, a PLC processing device, and a communication control device. A direction and a magnitude of the power can be automatically controlled to a desired value continuously on instantaneous value basis. A lubricant is positioned in the lubricant source in contact with the threaded portion of the shaft. The system is implemented by providing a system that implements selecting a selected area of a displayed object, and projecting a brush directly onto a surface of the selected area.