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. 16, 2013
Filed:
Mar. 26, 2010
Kazuhiro Seo, Hirakata, JP;
Kazuhiro Seo, Hirakata, JP;
SANYO Electric Co., Ltd., Moriguchi-Shi, JP;
Abstract
A battery system has: a voltage detection apparatus including a voltage detection portion which includes an AD converter which converts an analog voltage signal having a measurement target analog voltage into a digital voltage signal to output the digital voltage signal, a voltage level discrimination portion which is connected to a voltage detection line across which the analog voltage signal is delivered, and which discriminates the voltage level of the measurement target analog voltage to output a discrimination result, and a fault detection portion which detects, based on the output of the AD converter and the output of the voltage level discrimination portion, a fault in the voltage detection portion in a state in which the voltage value of the digital voltage signal is within a predetermined voltage range; a battery as a voltage source of the measurement target analog voltage; and a control portion which, when the fault detection portion detects the fault, limits the discharging of the battery, or limits the charging of the battery, or limits the discharging and charging of the battery.