公开(公告)号：US11218008B2

公开(公告)日：2022-01-04

申请号：US16367015

申请日：2019-03-27

Applicant: Samsung SDI Co., Ltd.

Inventor： Maximilian Hofer ,  Markus Pretschuh ,  Michael Erhart

IPC: H02J7/00 ,  H01M10/48 ,  G01R31/3842 ,  H01M10/42

Abstract: A control unit for a battery system includes a plurality of battery cells is provided. The control unit includes: an input node configured to receive a sensor signal indicative of a state of at least one of the plurality of battery cells; a microcontroller connected to the input node and configured to generate a first control signal based on the sensor signal; and a switch control circuit configured to control a power switch of the battery system by: receiving the sensor signal, the first control signal, and a fault signal indicative of an operational state of the microcontroller; generating a second control signal based on the sensor signal; and transmitting one of the first control signal and the second control signal to an output node of the control unit based on the received fault signal.

公开(公告)号：US10992013B2

公开(公告)日：2021-04-27

申请号：US16589509

申请日：2019-10-01

Applicant: Samsung SDI Co., Ltd.

Inventor： Michael Erhart

IPC: H01M4/02 ,  H01M50/581 ,  G01N31/22 ,  B60L58/10 ,  H01M10/44 ,  H01M10/48 ,  H01M50/20 ,  H01M50/124 ,  H01M10/0525

Abstract: A battery system for a vehicle includes: a battery module including a plurality of secondary battery cells; a gas sensor; and a housing accommodating the battery module and the gas sensor. At least a portion of an exterior surface of the battery module and/or at least a portion of an interior surface of the housing is covered by a coating. The coating is configured to emit a gaseous species when a temperature exceeds a reference temperature, and the gas sensor is configured to detect the gaseous species.

公开(公告)号：US20200079232A1

公开(公告)日：2020-03-12

申请号：US16541037

申请日：2019-08-14

Applicant: Samsung SDI Co., Ltd.

Inventor： Michael Erhart

IPC: B60L50/60 ,  H02M3/158 ,  B60L58/10

Abstract: A power supply system includes: a plurality of battery cells interconnected between a first stack node and a second stack node and providing a first operation voltage to a high-voltage board net; a low-voltage battery interconnected between the second stack node and a low voltage node and outputting a second operation voltage to a low-voltage board net; a step-down converter interconnected between the first stack node and the second stack node and outputting a third operation voltage to the low voltage node to charge the low-voltage battery; an intermediate node dividing the battery cells into first and second subsets of the battery cells and being connected to the low voltage node via a first switching element; and a control unit configured to detect a terminal voltage of the low-voltage battery and to set the first switching element into a conductive state according to the detected terminal voltage.

公开(公告)号：US11695189B2

公开(公告)日：2023-07-04

申请号：US17137160

申请日：2020-12-29

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Michael Erhart

IPC: H01M50/519 ,  H05K3/32 ,  H05K3/36 ,  H01M50/528 ,  H01M50/204 ,  H01M10/42 ,  H01M50/516

CPC classification number: H01M50/519 ,  H01M10/4257 ,  H01M50/204 ,  H01M50/516 ,  H01M50/528 ,  H05K3/328 ,  H05K3/361 ,  H01M2010/4271 ,  H05K2203/107 ,  H05K2203/1545

Abstract: A method for connecting a flexible printed circuit (FPC) to a battery module and a cell supervision circuit board (CSCB) is provided. The method includes: providing a coil of a continuous, strip-shaped FPC; unwinding a first section of the FPC from the coil, positioning the first section of the FPC over a first contact portion of the battery module, and welding a conductive structure of the FPC in the first section to the first contact portion of the battery module; unwinding a second section of the FPC from the coil, positioning the second section of the FPC over a contact pad of the CSCB, and welding the conductive structure of the FPC in the second section to the contact pad of the CSCB; and separating the first section and second section of the FPC from the coil of the FPC.

公开(公告)号：US20220263154A1

公开(公告)日：2022-08-18

申请号：US17673367

申请日：2022-02-16

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Gernot Kraberger ,  Wolfgang Reinprecht ,  Michael Erhart

IPC: H01M10/6554 ,  H01M10/613 ,  H01M10/6556 ,  H01M10/625 ,  H01M50/367

Abstract: A battery system includes: a plurality of battery cells, each of the battery cells having a venting side including a venting exit configured to allow venting products to exit the battery cells during a thermal runaway and a cooling side opposite the venting side; a cooling plate, the cooling side of the battery cells being in thermal connection with a first side of the cooling plate; and a battery housing enclosing the battery cells in a cell chamber. A guiding channel is formed between a second side of the cooling plate opposite the first side and a channel wall of the battery housing facing the second side of the cooling plate, and a passage fluidly connects the cell chamber and the guiding channel. Thus, when the venting products are emitted by the battery cells from the venting side into the cell chamber, the venting products are directed along a venting path from the cell chamber through the passage into the guiding channel and through the guiding channel to an environment of the battery system via a system exit.

公开(公告)号：US20210296884A1

公开(公告)日：2021-09-23

申请号：US17202764

申请日：2021-03-16

Applicant: Samsung SDI Co., Ltd.

Inventor： Michael Erhart ,  Wolfgang Reinprecht

IPC: H02H7/18 ,  H02H1/00 ,  H02H3/08 ,  G01R31/00 ,  G01R31/327

Abstract: A pyro igniter circuit and a method for testing the same is provided. The pyro igniter circuit includes a supervisory circuit configured to: transmit a test signal having a pulse duration time below an igniter activation pulse time of a pyro igniter disconnect element and/or an ignition control signal, in response to the transmitted test signal, has an amplitude below an igniter activation amplitude of the pyro igniter disconnect element; and receive a diagnostic response signal in response to the transmitted test signal.

公开(公告)号：US12170357B2

公开(公告)日：2024-12-17

申请号：US17673367

申请日：2022-02-16

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Gernot Kraberger ,  Wolfgang Reinprecht ,  Michael Erhart

IPC: H01M10/6554 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6556 ,  H01M50/367

Abstract: A battery system includes: a plurality of battery cells, each of the battery cells having a venting side including a venting exit configured to allow venting products to exit the battery cells during a thermal runaway and a cooling side opposite the venting side; a cooling plate, the cooling side of the battery cells being in thermal connection with a first side of the cooling plate; and a battery housing enclosing the battery cells in a cell chamber. A guiding channel is formed between a second side of the cooling plate opposite the first side and a channel wall of the battery housing facing the second side of the cooling plate, and a passage fluidly connects the cell chamber and the guiding channel. Thus, when the venting products are emitted by the battery cells from the venting side into the cell chamber, the venting products are directed along a venting path from the cell chamber through the passage into the guiding channel and through the guiding channel to an environment of the battery system via a system exit.

公开(公告)号：US12155246B2

公开(公告)日：2024-11-26

申请号：US17480011

申请日：2021-09-20

Applicant: Samsung SDI Co., Ltd.

Inventor： Maximilian Hofer ,  Markus Pretschuh ,  Michael Erhart

IPC: H02J7/00 ,  G01R31/3842 ,  H01M10/42 ,  H01M10/44 ,  H01M10/48

Abstract: A control unit for a battery system includes a plurality of battery cells is provided. The control unit includes: an input node configured to receive a sensor signal indicative of a state of at least one of the plurality of battery cells; a microcontroller connected to the input node and configured to generate a first control signal based on the sensor signal; and a switch control circuit configured to control a power switch of the battery system by: receiving the sensor signal, the first control signal, and a fault signal indicative of an operational state of the microcontroller; generating a second control signal based on the sensor signal; and transmitting one of the first control signal and the second control signal to an output node of the control unit based on the received fault signal.

公开(公告)号：US11280852B2

公开(公告)日：2022-03-22

申请号：US16742003

申请日：2020-01-14

Applicant: Samsung SDI Co., Ltd.

Inventor： Michael Erhart

IPC: G01R33/04 ,  G01R15/18 ,  H02J7/00 ,  G01R15/20 ,  G01R33/02 ,  G01R33/00

Abstract: A battery management unit for a battery system with a conductor or a busbar, the battery management unit including a printed circuit board, and a fluxgate current sensor including a magnetic core having a through-hole, at least one excitation winding, at least one compensation winding, and a sensor circuit configured to measure a magnetization of the at least one excitation winding, to generate a driving signal for driving the at least one compensation winding, to generate a current flowing through the at least one compensation winding according to the driving signal, and to generate an output signal corresponding to a magnitude of an electric current flowing through the through-hole of the magnetic core, wherein the magnetic core, the at least one excitation winding, the at least one compensation winding, and the sensor circuit are each integrated into the printed circuit board.

公开(公告)号：US11068765B2

公开(公告)日：2021-07-20

申请号：US16539882

申请日：2019-08-13

Applicant: Samsung SDI Co., Ltd.

Inventor： Michael Erhart

IPC: G06K19/06 ,  G06K19/07 ,  G06K19/077

Abstract: A battery module includes: a plurality of battery cells; a printed circuit board arranged within a short distance to the battery cells; a passive radio frequency identification tag; and a radio frequency receiver on the printed circuit board. The radio frequency identification tag is attached to at least one of the battery cells and is configured to measure a temperature of the at least one battery cell to which it is attached. The radio frequency identification tag is configured to harvest energy supplied by the radio frequency receiver and to wirelessly send temperature signals corresponding to the temperature of the at least one battery cell within an operating range limited to the short distance. The radio frequency receiver is configured to wirelessly supply energy to the radio frequency identification tag and to receive the temperature signal sent by the radio frequency identification tag.