公开(公告)号：US20190198944A1

公开(公告)日：2019-06-27

申请号：US16221899

申请日：2018-12-17

Applicant: DENSO CORPORATION

Inventor： Yasuhito TANABE ,  Syunichi KUBO

IPC: H01M10/48 ,  H01M2/34 ,  G01R31/382

CPC classification number: H01M10/482 ,  G01R31/382 ,  H01M2/348

Abstract: A monitoring apparatus is provided for monitoring voltages of a plurality of battery cells. The battery cells are electrically connected in series with each other and each include a pair of electrode terminals. The monitoring apparatus includes a flexible substrate, a monitoring circuit and a plurality of noise removal elements. The flexible substrate has a plurality of wiring patterns formed thereon. The wiring patterns are electrically connected with the electrode terminals of the battery cells. The monitoring circuit is electrically connected with the electrode terminals of the battery cells via the wiring patterns and configured to monitor the voltages of the battery cells inputted thereto via the wiring patterns. The noise removal elements are provided in monitoring circuit-side parts of the wiring patterns to remove noise inputted to the wiring patterns.

公开(公告)号：US20240222967A1

公开(公告)日：2024-07-04

申请号：US18606183

申请日：2024-03-15

Applicant: DENSO CORPORATION

Inventor： Yasuhito TANABE ,  Dachao WANG

IPC: H02J1/08 ,  B60L50/60 ,  B60L53/60 ,  H02J1/10 ,  H02J7/00 ,  H02J7/34

CPC classification number: H02J1/084 ,  H02J1/082 ,  H02J1/122 ,  H02J7/0031 ,  H02J7/0047 ,  H02J7/007182 ,  H02J7/342 ,  H02J7/345 ,  B60L50/60 ,  B60L53/60

Abstract: A power supply system includes a main relay provided on a high-voltage path between a high-voltage battery and electrical equipment, a charging relay provided on a charging path connected between the main relay and the electrical equipment, and a control device that controls opening and closing of the main relay and the charging relay. The control device, the main relay, and the charging relay operate using electrical power supplied from a low-voltage battery. In a state in which the main relay and the charging relay are closed, the high-voltage battery is charged by charging it with power supplied from a charging device. In addition, the power supply system includes a relay interruption unit that interrupts the charging relay before interrupting the main relay if a voltage reduction abnormality of the low-voltage battery has occurred under a state in which both the main relay and the charging relay are closed.

公开(公告)号：US20180045789A1

公开(公告)日：2018-02-15

申请号：US15671550

申请日：2017-08-08

Applicant: DENSO CORPORATION

Inventor： Shinsuke KAWAMOTO ,  Yasuhito TANABE

IPC: G01R31/36 ,  H01M10/42 ,  G01R31/02 ,  H01M10/48 ,  G01K7/22 ,  G01R31/00

Abstract: A battery monitoring apparatus that monitors a temperature of a battery includes a temperature detecting unit, a power supply, a limiting unit, a temperature acquiring unit, and determining unit. The temperature detecting unit is provided for the battery. Resistance of the temperature detecting unit changes with temperature. The power supply applies a voltage to the temperature detecting unit. The limiting unit limits the application of voltage to the temperature detecting unit from the power supply. When the limiting unit is not limiting the application of voltage, the temperature acquiring unit determines the temperature of the battery based on a voltage-drop amount in the temperature detecting unit. When the limiting unit is limiting the application of voltage, the determining unit makes a determination regarding a short circuit between the temperature detecting unit and the battery based on the voltage applied to the temperature detecting unit.