Disclosed is a pneumatic tire without inner tube and unsupported by sidewall, wherein a wear-resistant layer or a wear-resistant lubrication layer is disposed at an inner surface rubber layer of a tire outer side, or disposed at an inner surface rubber layer of the tire outer side and a tire inner side. The wear-resistant layer is located at at least one of the following three portions: a tire bead, a tire sidewall, and a tire shoulder. After the tire, which is zero-pressure tire, goes flat, two surfaces of the inner surface rubber layer come into contact with each other, wherein the wear-resistant layer provided at the contact position can improve wear resistance and increase tire mileage and speed limitations.

A fuel solution introducing method introduces a fuel solution into a tire. The tire includes a transmitter configured to transmit data that includes a detection result detected by a sensor to a receiver. The transmitter is operated with, as a power source, an organic power generation element configured to generate power through a chemical reaction with organic matter contained in the fuel solution. The fuel solution introducing method includes introducing the fuel solution and gas into the tire from a tire valve arranged on a wheel to which the tire is attached.

Embodiments of the present disclosure disclose a tire, a wheel and a vehicle, the tire includes an inner tube, a tire casing and a lubricating layer; the inner tube is a pneumatic tire, the tire casing is defined with an inner cavity, the inner tube is provided in the inner cavity, and the lubricating layer is provided between the inner tube and the tire casing. The lubricating layer is provided between two surfaces where the inner tube and the tire casing of the tire are in contact with each other, so as to reduce friction force caused by relative sliding between the inner tube and the tire casing slide when the tire pressure is zero or insufficient, avoid the inner tube from being worn out and then causing the air leakage, and improve the driving safety of the vehicle.

A fuel solution introducing method introduces a fuel solution into a tire. The tire includes a transmitter configured to transmit data that includes a detection result detected by a sensor to a receiver. The transmitter is operated with, as a power source, an organic power generation element configured to generate power through a chemical reaction with organic matter contained in the fuel solution. The fuel solution introducing method includes introducing the fuel solution and gas into the tire from a tire valve arranged on a wheel to which the tire is attached.