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. 21, 2017
Filed:
Oct. 11, 2012
Sanden Corporation, Isesaki-shi, JP;
Honda Motor Co., Ltd., Minato-ku, JP;
Shunsuke Kaneko, Isesaki, JP;
Kazuyasu Ushigome, Isesaki, JP;
Jyouji Arai, Isesaki, JP;
Soichi Mizuno, Wako, JP;
Mamoru Fujita, Wako, JP;
Naoki Inoue, Wako, JP;
SANDEN HOLDINGS CORPORATION, Isesaki-shi, JP;
HONDA MOTOR CO., LTD., Tokyo, JP;
Abstract
In order to perform overheating protection of a controller for water-heating heatersA andB for in-vehicle heating, an energization circuit for a heater(A,B) includes IGBTsandas switching devices that are disposed therein to be in series with the heater, and a first temperature sensor (first thermistor)which measures temperature of these IGBTs. A comparatoris provided to transmit a signal when the temperature of the IGBTsis equal to or greater than a predetermined temperature. Then, the IGBTscan be forcibly turned OFF via the IGBT driverin response to a signal from the comparatorwithout a microprocessorintervening therebetween.