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:
Oct. 04, 2016
Filed:
Oct. 28, 2013
Ngk Spark Plug Co., Ltd., Nagoya-shi, Aichi, JP;
Tomonori Uemura, Komaki, JP;
NGK SPARK PLUG CO., LTD., Aichi, JP;
Abstract
A heater control apparatus (1) includes a heater driver () which is turned on and off in accordance with a pulse drive signal PS, heater energization control means SSfor outputting the pulse drive signal PS to the heater driverso as to control the supply of electric current to the heater section (4), power supply voltage detection means SSfor detecting a power supply voltage VB of the power supply BT, ideal electric energy obtaining means SSfor obtaining an unit ideal electric energy WAi, actual electric energy calculation means Sfor calculating an unit actual electric energy WA, and duty ratio determination means Sfor determining a duty ratio DT(n+1) of the pulse drive signal PS such that the unit actual electric energy WA(n+1) becomes equal to the unit ideal electric energy WAi(n+1) in the next period T(n+1).