Method of measuring temperature within cured article and method of controlling tire vulcanization

A method of controlling a tire vulcanization by controlling a heat supply to a vulcanizing machine which includes a mold unit and a bladder unit having a bladder and center post assembly comprising the steps of:

• measuring a first temperature at at least one point at a boundary between the mold unit heated by steam and the tire during the tire vulcanization with a first temperature sensing means;
• providing a second temperature sensing means at the center post assembly of the bladder unit heated by steam and gas during the tire vulcanization and measuring a second temperature with the second temperature sensing means;
• introducing a first boundary layer between the first temperature sensing means and the tire;
• introducing a second boundary layer between the second temperature sensing means and the bladder;
• calculating temperatures at predetermined points within the tire from the first and second temperatures;
• calculating vulcanizations at said predetermined points from said temperatures at said predetermined points;
• estimating a vulcanization profile within the tire from said vulcanizations at said predetermined points;
• detecting a least vulcanization of said vulcanization profile within the tire;
• and
• determining a timing at which the heat supply to the vulcanizing machine is stopped and producing a stop signal for the heat supply in accordance with said least vulcanization within the tire.