Invention Grant
- Patent Title: Systems and methods for battery discharge control
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Application No.: US16076091Application Date: 2016-02-17
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Publication No.: US10601083B2Publication Date: 2020-03-24
- Inventor: Keita Komiyama , Yuki Katoh
- Applicant: TOYOTA MOTOR EUROPE
- Applicant Address: BE Brussels
- Assignee: TOYOTA MOTOR EUROPE
- Current Assignee: TOYOTA MOTOR EUROPE
- Current Assignee Address: BE Brussels
- Agency: Oliff PLC
- International Application: PCT/EP2016/053331 WO 20160217
- International Announcement: WO2017/140355 WO 20170824
- Main IPC: H02J7/04
- IPC: H02J7/04 ; H01M10/44 ; H02J7/00

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.
Public/Granted literature
- US20190198940A1 SYSTEMS AND METHODS FOR BATTERY DISCHARGE CONTROL Public/Granted day:2019-06-27
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