公开(公告)号：US20210247455A1

公开(公告)日：2021-08-12

申请号：US17244376

申请日：2021-04-29

Applicant: DENSO CORPORATION

Inventor： Toshiki KOJIMA ,  Masakazu KOUDA ,  Hayato MIZOGUCHI

IPC: G01R31/388 ,  G01R31/364 ,  H01M10/48 ,  H01M10/42

Abstract: A battery monitoring apparatus is used in a battery assembly equipped with a plurality of batteries connected in series with each other. A plurality of measuring lines are mounted on a given layer of a multi-layer substrate and work to measure electrical potentials developed at terminals of the batteries, respectively. The measuring lines are classified into measuring line groups in order of electrical potential from lowest to highest. A plurality of solid patterns are arranged on one of layers of the multi-layer substrate other than the given layer and provided one for each of the measuring line groups. The solid patterns overlap the measuring line groups in planar view in a stacking direction of the multi-layer substrate. The solid patterns are arranged away from each other. The higher electrical potentials of the measuring line groups are, the higher electrical potentials of the corresponding solid patterns are.

公开(公告)号：US20210278468A1

公开(公告)日：2021-09-09

申请号：US17330863

申请日：2021-05-26

Applicant: DENSO CORPORATION

Inventor： Toshiki KOJIMA ,  Masakazu KOUDA ,  Akira SUMI

IPC: G01R31/382 ,  G01R31/396 ,  H01M10/48 ,  H02J7/02 ,  B60L58/12

Abstract: A battery system includes a plurality of battery modules and a control apparatus. The battery includes a battery group that includes two or more battery modules including battery units and battery monitoring units. The battery monitoring units of the battery modules being connected to each other via a communication line. The battery modules perform wired communication via the communication line. The battery group further includes a wireless receiving unit and a wireless transmitting unit. The wireless receiving unit wirelessly receives a command signal transmitted from the control apparatus. The wireless transmitting unit wirelessly transmits, to the control apparatus, a data signal including module identification information differing for each battery module. In the battery group, the wireless receiving unit is provided in a single battery module of the battery modules and the wireless transmitting unit is provided in a single battery module of the battery modules.