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:
Jul. 07, 2015
Filed:
Jun. 10, 2011
Takayuki Sakurai, Komaki, JP;
Takayuki Ohtani, Iwakura, JP;
Takayuki Sakurai, Komaki, JP;
Takayuki Ohtani, Iwakura, JP;
NGK SPARK PLUG CO., LTD., Aichi, JP;
Abstract
A GCU () includes calibration means () which supplies electric current to a glow plug () when an internal combustion engine EN to which the glow plug () is attached is stopped, to thereby obtain a pre-correction target resistance of the glow plug (). The calibration means () supplies a predetermined first electric power to the glow plug () in a predetermined first energization period, and supplies a predetermined second electric power to the glow plug () after the first energization period. The second electric power is set such that, when the second electric power is supplied to the glow plug () and the temperature of the glow plug () becomes saturated, the temperature of the glow plug () becomes equal to the target temperature. Further, the first electric power is greater than the second electric power.