公开(公告)号：US20220224125A1

公开(公告)日：2022-07-14

申请号：US17596365

申请日：2020-06-11

Applicant: Nilfisk A/S

Inventor： Jan Thorsøe

IPC: H02J7/00 ,  H01M10/44 ,  H01M10/46 ,  H01M10/42

Abstract: The invention relates to a battery system which includes a master controller (101) arranged to determine a current control signal for controlling a charging current from a current source (102), one or more battery modules (103) comprising battery module terminals, a connection arrangement (121) arranged to electrically connect the one or more battery modules in parallel via the battery module terminals to enable parallel charging/discharging via individual switches (104), where each battery module comprises at least one battery cell (105), and a slave control unit (106) configured to monitor a battery condition of the battery module and to determine a battery event based on the battery condition, where the master controller is configured to determine the current control signal dependent on the battery event from any of the battery modules so as to cause a reduction or increase of the charging current, and to determine the current control signal dependent on battery module capacities of the one or more battery modules.