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. 17, 2015
Filed:
Dec. 04, 2009
Shigeki Kinomura, Shizuoka-ken, JP;
Osamu Shintani, Toyota, JP;
Taro Furukoshi, Toyota, JP;
Atsushi Komada, Nisshin, JP;
Shigeki Kinomura, Shizuoka-ken, JP;
Osamu Shintani, Toyota, JP;
Taro Furukoshi, Toyota, JP;
Atsushi Komada, Nisshin, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken, JP;
Abstract
An electronic control unit () calculates the heat receiving quantity of a thermo wax to estimate the temperature of the thermo wax on the basis of the calculated heat receiving quantity and the heat capacity of the thermo wax, and controls a heater so that the temperature of the thermo wax reaches a predetermined target value. Further, the electronic control unit () changes the value of the heat capacity used to estimate the temperature of the thermo wax depending on the variation of the estimated temperature of the thermo wax across the phase transition point of the thermo wax so as to preferably control a switching valve which is operated by heating the thermo wax.