국제 및 국내 특허문헌 검색

1. (WO2017140355) SYSTEMS AND METHODS FOR BATTERY DISCHARGE CONTROL

Pub. No.:    WO/2017/140355    International Application No.:    PCT/EP2016/053331
Publication Date: Fri Aug 25 01:59:59 CEST 2017 International Filing Date: Thu Feb 18 00:59:59 CET 2016
IPC: H01M 10/44
Applicants: TOYOTA MOTOR EUROPE
Inventors: KOMIYAMA, Keita
KATOH, Yuki
Title: SYSTEMS AND METHODS FOR BATTERY DISCHARGE CONTROL
Abstract:
A discharging control system for a battery includes temperature sensing means configured to provide a temperature value associated with the battery, voltage sensing means configured to provide a voltage value associated with the battery, pressure sensing means configured to provide a pressure value associated with an internal portion of the battery, and a controller. The controller is configured to determine, before a discharging process is started, a threshold pressure change associated with a discharge of the battery based on map data selected from a predetermined data map associated with the battery, monitor, during the discharging process, a present voltage value obtained by the voltage sensing means, a current pressure value, and a total pressure change based on the current pressure value obtained by the pressure sensing means, permit continuation of the discharging process when the present voltage value falls below a first lower limit voltage value if the total pressure change is less than the threshold pressure change and the current pressure value is greater than a predetermined minimum threshold pressure, and prohibit continuation of the discharging process when any one of the following conditions is true: (i) the present voltage value falls below a second lower limit voltage value that is lower than the first lower limit voltage value; (ii) the total pressure change is greater than or equal to the threshold pressure change; or (iii) the current pressure value is lower than the predetermined minimum threshold pressure.