US 11,867,766 B2
Battery system
Toshiki Kojima, Kariya (JP); Masakazu Kouda, Kariya (JP); and Akira Sumi, Kariya (JP)
Assigned to DENSO CORPORATION, Kariya (JP)
Filed by DENSO CORPORATION, Kariya (JP)
Filed on May 26, 2021, as Appl. No. 17/330,863.
Application 17/330,863 is a continuation of application No. PCT/JP2019/046586, filed on Nov. 28, 2019.
Claims priority of application No. 2018-226818 (JP), filed on Dec. 3, 2018.
Prior Publication US 2021/0278468 A1, Sep. 9, 2021
Int. Cl. G01R 31/382 (2019.01); G01R 31/396 (2019.01); B60L 58/12 (2019.01); H01M 10/48 (2006.01); H02J 7/02 (2016.01)
CPC G01R 31/382 (2019.01) [B60L 58/12 (2019.02); G01R 31/396 (2019.01); H01M 10/48 (2013.01); H01M 10/482 (2013.01); H02J 7/02 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A battery system comprising:
a plurality of battery modules, each of the plurality of battery modules including a battery unit and a battery monitoring unit; and
a control apparatus, wherein:
the plurality of battery modules comprises a battery group that includes two or more battery modules including battery units and battery monitoring units, the battery monitoring units of the two or more battery modules in the battery group being connected to each other via a communication line, the two or more battery modules in the battery group performing wired communication via the communication line;
the battery group further includes
a wireless receiving unit that wirelessly receives a command signal that is transmitted from the control apparatus, and
a wireless transmitting unit that wirelessly transmits, to the control apparatus, a data signal that includes module identification information that differs for each battery module;
in the battery group, the wireless receiving unit is provided in a single battery module of the two or more battery modules and the wireless transmitting unit is provided in a single battery module of the two or more battery modules;
in the battery group, the battery monitoring units of the two or more battery modules are connected in a ring topology via the communication line; and
the battery monitoring units of the two or more battery modules in the battery group transmit the command signal and the data signal in a predetermined transmission direction using the communication line that is arranged in the ring topology.