The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 2008
Filed:
Oct. 24, 2003
Klaus Franz, Nürnberg, DE;
Klaus Weinzierl, Nürnberg, DE;
Klaus Franz, Nürnberg, DE;
Klaus Weinzierl, Nürnberg, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
The temperature (T) of a metal () can be influenced directly or indirectly by at least one actuator () which is actuated in accordance with a control variable (S). The control variable (S) and starting values (T, p, p) for a temperature of the metal () and phase proportions in which the metal () is at least in a first phase or a second phase, respectively, are predetermined for a material model (). A heat conduction equation and a transformation equation are solved in real time within the material model (), taking account of these variables (T, p, p) , and in this way expected values (T, p, p) are determined for these variables. As part of the transformation equation, the Gibbs' free energies (G, G) of the phases of the metal () are determined, a transformation rate of the metal () from the first phase to the second phase is determined therefrom, and the expected proportions (p, p) are determined from the latter.