公开(公告)号：US20180172769A1

公开(公告)日：2018-06-21

申请号：US15578187

申请日：2016-11-23

Applicant: LG CHEM, LTD.

Inventor： Ho Byung YOON ,  Sang Hoon LEE ,  Jae Dong PARK

IPC: G01R31/36 ,  H01M10/48 ,  H01M10/42

CPC classification number: G01R31/382 ,  G01R31/36 ,  G08C19/02 ,  H01M10/42 ,  H01M10/425 ,  H01M10/482 ,  H01M10/488 ,  H01M2010/4271 ,  H01M2010/4278 ,  H04Q9/00

Abstract: The present invention provides a battery pack state parallel-monitoring device having a battery pack configured with a plurality of battery cells, a cell monitoring unit for measuring a state of the plurality of battery cells, a BMIC for generating a diagnostic signal indicating a state of the battery pack through the cell monitoring unit, a main MCU for receiving the diagnostic signal, and an auxiliary MCU for receiving the diagnostic signal and transmitting/receiving data of the main MCU, the battery pack state parallel-monitoring device including data lines connecting the BMIC and the main MCU to each other, parallel lines connected in parallel to the data lines, and a communication monitoring unit connected to the parallel lines to monitor data transmitted/received between the BMIC and the main MCU and transfer the monitored data to the auxiliary MCU.

公开(公告)号：US20170244257A1

公开(公告)日：2017-08-24

申请号：US15104613

申请日：2015-09-17

Applicant: LG CHEM, LTD.

Inventor： Chang Hyun SUNG ,  Sang Hoon LEE ,  Ho Byung YOON

IPC: H02J7/00

CPC classification number: H02J7/0014 ,  H01M10/482 ,  H01M2010/4271 ,  H02J7/00 ,  H02J7/0016 ,  H02J7/0021 ,  Y02T10/7055

Abstract: The present invention relates to a battery cell balancing system and method using LC resonance. The present invention comprises: a drive unit including one or more battery cells connected in series, a resonance module for performing a resonant operation, and a switch unit provided so as to allow electric charges stored in the resonance module to be transferred to each of the one or more battery cells; and a control unit for measuring a resonance period of the resonance module according to a voltage state of each of the one or more battery cells, and transferring the electric charges charged in the resonance module to each of the one or more battery cells by controlling an on/off operation of the switch unit according to the measured resonance period.

公开(公告)号：US20170048942A1

公开(公告)日：2017-02-16

申请号：US15305774

申请日：2015-10-01

Applicant: LG CHEM, LTD.

Inventor： Taejoong LEE ,  Sang Hoon LEE ,  Younghwan KIM

IPC: H05B33/08

CPC classification number: H05B33/0845 ,  H03K17/72 ,  H03K17/78 ,  H03K17/785 ,  H03K2217/0036 ,  H05B33/0884

Abstract: An apparatus and a method for controlling an isolated switch are disclosed. The apparatus and the method for controlling an isolated switch according to the present invention, configure a circuit so as to maintain a light emitting diode (LED) included in an isolated switch in an OFF state at normal times and control the LED in an ON state when an event occurs in an isolated switch such as a photo MOS relay to reduce power consumed for emitting the LED by decreasing a duration for which the LED is maintained in an emission state and improve durability of a system adopting the isolated switch by improving a life-span of the isolated switch.

Abstract translation: 公开了一种用于控制隔离开关的装置和方法。 根据本发明的用于控制隔离开关的装置和方法构成一个电路，以便在正常时间将包含在隔离开关中的发光二极管（LED）保持在OFF状态，并将LED控制在ON状态 当在诸如光电MOS继电器的隔离开关中发生事件时，通过减少LED保持在发射状态的持续时间来降低发光LED所消耗的功率，并通过改善寿命来提高采用隔离开关的系统的耐久性 - 隔离开关的跨度。

公开(公告)号：US20210082480A1

公开(公告)日：2021-03-18

申请号：US16612285

申请日：2018-10-15

Applicant: LG CHEM, LTD.

Inventor： Chang Hyun SUNG ,  Sang Hoon LEE ,  Yean Sik CHOI

IPC: G11C7/12 ,  H02J7/00 ,  H02M3/158

Abstract: A device and a method for equalizing and precharging a cell module, which may form a circuit for performing a corresponding operation by a converter unit by selectively connecting the converter unit and one or more cell modules by controlling a conduction state of a switching unit based on an operation which the converter intends to perform.

公开(公告)号：US20200057107A1

公开(公告)日：2020-02-20

申请号：US16610181

申请日：2018-09-28

Applicant: LG CHEM, LTD.

Inventor： Hyunki CHO ,  Chang Hyun SUNG ,  Sang Hoon LEE ,  Yean Sik CHOI

IPC: G01R31/327 ,  G01R19/165 ,  G05B23/02

Abstract: A system of predicting a failure rate of a contactor before the generation of a failure by counting a lifespan index of the contactor based on normality of through-currents of a primary side and a secondary side of the contactor, and determining that a failure rate of the contactor increases when a count value for an abnormal through-current exceeds a predetermined threshold value.

公开(公告)号：US20170315177A1

公开(公告)日：2017-11-02

申请号：US15520506

申请日：2015-12-28

Applicant: LG CHEM, LTD.

Inventor： Ho Byung YOON ,  Sang Hoon LEE ,  Jaedong PARK ,  Chang Hyun SUNG

IPC: G01R31/36 ,  H01M10/48 ,  H02J7/00 ,  H01M10/46 ,  H01M10/42

Abstract: The overvoltage protection circuit according to an embodiment of the present invention includes: a voltage measurement unit for measuring the voltage of a battery; a power control unit that supplies power if the battery voltage value measured in the voltage measurement unit is equal to or greater than a first predetermined voltage value; and a cut-off circuit unit that receives power supplied from the power control unit and cuts off the charge of the battery if the voltage value of the battery is equal to or greater than a second predetermined voltage value that is higher than the first voltage value.

公开(公告)号：US20200124672A1

公开(公告)日：2020-04-23

申请号：US16066239

申请日：2017-01-24

Applicant: LG CHEM, LTD.

Inventor： Hyunki CHO ,  Sang Hoon LEE ,  Jaedong PARK ,  Chang Hyun SUNG

IPC: G01R31/327 ,  B60R16/023 ,  G01R31/3842 ,  H01H47/00

Abstract: The present invention relates to a system and a method of preventing a contactor from being abnormally opened through a real-time detection of an operation, in which a contactor coil control unit, which applies an operation signal to a contactor coil (relay coil) that opens or connects contact points of a contactor (Relay), during a travelling of a vehicle applies an abnormal signal to the contactor coil by an external reason or a failure, the abnormal signal is detected in real time, so that it is possible to prevent the contact point of the contactor from being unintentionally opened by the abnormal signal, and particularly, it is possible to prevent an operating vehicle from being suddenly stopped by determining whether the vehicle actually travels based on a maintenance time of the abnormal signal and whether the abnormal signal is applied due to an actual failure of the contactor coil control unit.

公开(公告)号：US20190101598A1

公开(公告)日：2019-04-04

申请号：US16083414

申请日：2017-04-26

Applicant: LG CHEM, LTD.

Inventor： Hyunki CHO ,  Jaedong PARK ,  Sang Hoon LEE

IPC: G01R31/3835 ,  G01R31/388 ,  H02J7/14 ,  H01M10/42 ,  H01M10/48

Abstract: The present invention relates to a battery management system, and to a battery management system, in which a voltage measuring unit measuring a voltage of a battery and a control unit controlling the battery based on the measured voltage value are separated in a battery management controller included in an existing battery management system and the voltage measuring unit is included in the battery disconnecting unit, thereby preventing insulation resistance between the voltage measuring unit and the control unit from being decreased.

公开(公告)号：US20190004094A1

公开(公告)日：2019-01-03

申请号：US16060287

申请日：2017-05-02

Applicant: LG CHEM, LTD.

Inventor： Jaedong PARK ,  Hyunki CHO ,  Sang Hoon LEE ,  Chang Hyun SUNG

IPC: G01R1/20 ,  G01R31/36 ,  H01M10/42 ,  H01M10/48

Abstract: The present invention relates to a current measurement apparatus using a shunt resistor, and a current measurement apparatus using a shunt resistor, in which two or more busbar-type components, to which one shunt resistor is applied, in the related art are integrated into one busbar module, and a voltage of a battery module is measured through the plurality of shunt resistors included in the one integrated busbar module, thereby decreasing volumes and price of the battery module and a battery pack, and the plurality of shunt resistors is measured through the plurality of measuring units, respectively, thereby measuring a reliable voltage value.

公开(公告)号：US20180074113A1

公开(公告)日：2018-03-15

申请号：US15559937

申请日：2016-11-16

Applicant: LG CHEM, LTD.

Inventor： Chang Hyun SUNG ,  Sang Hoon LEE

IPC: G01R31/12 ,  G01R31/14

Abstract: The present invention relates to an insulation resistance measuring system and device which calculate resistance values of the positive electrode insulation resistance and the negative electrode insulation resistance by using convergence values of the first voltage and the second voltage, in order to measure the positive electrode insulation resistance and the negative electrode insulation resistance connected to both terminals of a battery pack with a capacitor, respectively.