公开(公告)号：EP4044394A1

公开(公告)日：2022-08-17

申请号：EP22154984.3

申请日：2022-02-03

申请人： The Boeing Company

发明人： Khozikov, Vyacheslav ,  Lacaux, Frederic ,  Solodovnik, Eugene V. ,  Trela, John A. ,  Miller, Kolten C. ,  Karimi, Kamiar J.

IPC分类号： H02J7/00 ,  B60L58/15 ,  B60L58/21 ,  B60W20/14 ,  H02J7/14

摘要： Methods and systems for charging a battery string while protecting against overcharging. One system includes: a pair of disconnect devices; a power distribution bus which is electrically connected to a battery string via the disconnect devices; a battery charger connected to supply battery power to the power distribution bus for charging the battery string; a module monitoring unit configured to sense individual battery cell voltages during charging; a first processor configured to activate one disconnect device to open when the sensed individual battery cell voltages indicate overcharging; a plurality of sensors connected to sense a full-string voltage measured across the battery string and first and second half-string voltages measured across first and second half-strings of the battery string; and a second processor connected to receive sensor data during charging. The second processor is configured to independently activate the second disconnect device to open when the sensor data indicates continued overcharging.