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:
Feb. 26, 2019
Filed:
Jun. 29, 2017
Yazaki Corporation, Tokyo, JP;
Takaaki Izawa, Shizuoka, JP;
YAZAKI CORPORATION, Minato-ku, Tokyo, JP;
Abstract
A battery monitoring system includes: an input circuit to which voltage signals of battery cells are inputted; a multiplexer selecting a battery cell for voltage detection from the battery cells, selecting voltage signals inputted from the input circuit, and outputting the selected voltage signals; first and a second voltage measuring circuits simultaneously measuring voltages based on the voltage signals in first and second routes outputted from the multiplexer; a comparator comparing measurement results by the first voltage measuring circuit and by the second voltage measuring circuit; and a control unit that judges, on a basis of a comparison result by the comparator, at least one of a voltage of each battery cell, an operation check of equalizing the voltages of the battery cells, a presence or absence of a disconnection of a detection line of each battery cell, and a presence or absence of a failure in the multiplexer.