Search International and National Patent Collections

1. (WO2018040778) INTERNAL RESISTANCE DETECTION DEVICE AND DETECTION METHOD FOR STORAGE BATTERY, AND STORAGE BATTERY STATE MONITORING SYSTEM

Pub. No.:    WO/2018/040778    International Application No.:    PCT/CN2017/093714
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Fri Jul 21 01:59:59 CEST 2017
IPC: G01R 31/36
Applicants: ZTE CORPORATION
中兴通讯股份有限公司
Inventors: TANG, Guohua
唐国华
WANG, Chao
王超
PENG, Yanfei
彭雁飞
SUN, Weipeng
孙炜鹏
Title: INTERNAL RESISTANCE DETECTION DEVICE AND DETECTION METHOD FOR STORAGE BATTERY, AND STORAGE BATTERY STATE MONITORING SYSTEM
Abstract:
An internal resistance detection device and detection method for a storage battery, and a storage battery state monitoring system. The detection device (100) comprises: a discharging unit (101), connected to a storage battery (105), and set to discharge the storage battery (105), wherein a discharging current is within a pre-set range; a discharging control unit (102), connected to the discharging unit (101), and set to repeatedly control the conduction of the discharging unit (101) and close same after a pre-set time, and to perform pulse discharging on the storage battery (105) a plurality of times; a data collection unit (103), respectively connected to the storage battery (105), and set to acquire, in real time, a current value and a voltage value during the process of performing pulse discharging on the storage battery (105); and a data processing unit (104), connected to the data collection unit (103), and set to calculate an internal resistance of the storage battery (105) according to the voltage value and the current value, and the number of times that pulse discharging is performed. On the premise of ensuring a lower degree of damage caused by discharging to the storage battery (105), the technical solution enhances the authenticity and accuracy of the internal resistance measurement of the storage battery (105).