Title:
BATTERY CONTROL UNIT AND BATTERY SYSTEM
Document Type and Number:
Japanese Patent JP2021125948
Kind Code:
A
Abstract:
To provide a battery control unit and a battery unit, which can suppress the fluctuation range of the total voltage of a battery pack.SOLUTION: A DC/DC converter 4 is provided between batteries 21-23 and a load 6 or a charger 5. Switchover units 311-31N are provided for a plurality of batteries 21-2N, respectively, to switch between a connection state, enabling connection between each corresponding battery 21-2N and the load 6 or the charger 5, and a non-connection state disabling connection between each corresponding battery 21-2N and the load 6 or the charger 5. A control unit 33 controls the switchover units 311-31N to make one of the plurality of batteries 21-2N be a connection state, to determine whether or not a battery 2n in the connection state reaches a stop voltage. On determination of reaching the stop voltage, the control unit 33 changes one battery 2n to be in the connection state to another battery 2n+1.SELECTED DRAWING: Figure 3
Inventors:
ONO CHIHIRO
SHODA TAKAHIRO
SHODA TAKAHIRO
Application Number:
JP2020017186A
Publication Date:
August 30, 2021
Filing Date:
February 04, 2020
Export Citation:
Assignee:
YAZAKI CORP
International Classes:
H02J7/02; H01M10/44; H01M10/48; H02J7/00
Attorney, Agent or Firm:
Patent business corporation glory patent office