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.:

US 9255564 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 09, 2016

Filed:

Jan. 12, 2012
Applicants:

Yasuo Toyoshima, Saitama, JP;

Katsumi Takatsu, Saitama, JP;

Inventors:

Yasuo Toyoshima, Saitama, JP;

Katsumi Takatsu, Saitama, JP;

Assignee:

Bosch Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F23Q 7/22 (2006.01); F02P 19/02 (2006.01); F02D 41/24 (2006.01);
U.S. Cl.
CPC ...
F02P 19/025 (2013.01); F02D 41/2451 (2013.01);
Abstract

An arithmetic and control unit is configured to calculate a resistance value of a glow plug on the basis of an energization current of the glow plug and a voltage applied to the glow plug, perform a multiplication of the resistance value and a constant that has been determined beforehand on the basis of an electrical characteristic of the glow plug, input a predetermined heater reference point temperature, calculate an offset with a predetermined offset arithmetic expression from the heater reference point temperature, correct the multiplication result with that offset, and take the correction result as an estimated temperature of a tip of the glow plug.


Find Patent Forward Citations

Toyoshima, Yasuo. (2016). Glow plug tip temperature estimating method and glow plug drive control device (U.S. Patent No. 9255564). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9255564

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