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:
Dec. 05, 2017
Filed:
Dec. 17, 2013
Byd Company Limited, Shenzhen, CN;
BYD COMPANY LIMITED, Shenzhen, CN;
Abstract
A battery-pack fault detecting device and a method for detecting a fault of a battery pack are provided. The battery-pack fault detecting device includes: N diodes, in which each battery is connected with one of the N diodes in anti-parallel via a detecting line; N+1 switches; a switch control circuit for switching on or switching off each switch; a voltage collecting circuit connected with the switch control circuit for collecting a voltage of the battery; an analog-to-digital conversion circuit for performing an analog-digital conversion on the voltage of the battery to obtain a digital voltage; a detection control circuit connected with the switch control circuit and the analog-to-digital conversion circuit, for controlling the switch control circuit to switch on or off each switch and for comparing the digital voltage with a preset value to judge a fault of the battery pack.