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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 9581634 B1

PDFFull Text
Date of Patent:
Feb. 28, 2017

Filed:

Oct. 16, 2014

Power supply current monitoring device

Applicant:

Denso Corporation, Kariya, Aichi-pref., JP;

Inventor:

Seiji Morino, Nagoya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:

Nixon & Vanderhye P.C.

Primary Examiner:

Calvin Cheung

Assistant Examiner:

Paula L Schneider

Int. Cl.
CPC ...
G06F 11/30 (2006.01); G07C 5/00 (2006.01); G01M 17/00 (2006.01); G06F 7/00 (2006.01); G06F 19/00 (2011.01); G01R 31/02 (2006.01); G01R 19/00 (2006.01); G01R 19/165 (2006.01); G01R 31/00 (2006.01); G01R 31/42 (2006.01); G01R 31/34 (2006.01);
U.S. Cl.
CPC ...
G01R 31/025 (2013.01); G01R 19/0092 (2013.01); G01R 19/16538 (2013.01); G01R 31/006 (2013.01); G01R 31/42 (2013.01); G01R 31/343 (2013.01);
Abstract

A power supply current monitoring apparatus is used for a load drive apparatus with two systems to drive a load. Each system includes a drive circuit connected in parallel with a battery and a relay connected between the drive circuit and a point at which power of the battery is divided between the systems. When overcurrent is detected once in one system, a repetitive monitoring process is performed. The monitoring process determines whether the overcurrent occurs by repeating a monitoring cycle. The monitoring cycle turns OFF the relay of one system and then monitors currents by turning ON the relay of one system when a predetermined cycle time elapses since the overcurrent detection. The monitoring process includes a mask procedure to stop monitoring the current in the other system. The mask procedure is performed after the relay of one system is turned OFF in each monitoring cycle.

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Morino, Seiji. (2017). Power supply current monitoring device (U.S. Patent No. 9581634). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9581634

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