WO2023038400A1 - 융접합 보호 모듈 및 이를 포함하는 배터리 시스템 - Google Patents
융접합 보호 모듈 및 이를 포함하는 배터리 시스템 Download PDFInfo
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- WO2023038400A1 WO2023038400A1 PCT/KR2022/013360 KR2022013360W WO2023038400A1 WO 2023038400 A1 WO2023038400 A1 WO 2023038400A1 KR 2022013360 W KR2022013360 W KR 2022013360W WO 2023038400 A1 WO2023038400 A1 WO 2023038400A1
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- level
- control signal
- fusion
- contactor
- signal
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- 238000001514 detection method Methods 0.000 claims abstract description 43
- 230000004927 fusion Effects 0.000 claims description 98
- 239000000155 melt Substances 0.000 abstract 2
- 101000912503 Homo sapiens Tyrosine-protein kinase Fgr Proteins 0.000 description 17
- 102100026150 Tyrosine-protein kinase Fgr Human genes 0.000 description 17
- 238000010586 diagram Methods 0.000 description 12
- 239000003990 capacitor Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000007526 fusion splicing Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/20—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for electronic equipment
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/001—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection limiting speed of change of electric quantities, e.g. soft switching on or off
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0038—Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller (comparing pulses or pulse trains according to amplitude)
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/10—Measuring sum, difference or ratio
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/04—Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of dc component by short circuits in ac networks
- H02H1/043—Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of dc component by short circuits in ac networks to inrush currents
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/008—Intrinsically safe circuits
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/027—Generators characterised by the type of circuit or by the means used for producing pulses by the use of logic circuits, with internal or external positive feedback
- H03K3/037—Bistable circuits
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/20—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits characterised by logic function, e.g. AND, OR, NOR, NOT circuits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present disclosure relates to a fusion protection module and a battery system including the same.
- the negative contactor can be made inoperative. However, a fault clear operation may be performed or other software of the battery management system may operate to close the negative contactor.
- An object of the present invention is to provide a fusion protection module, which is hardware for improving the limitations that occur in contactor protection operations using software, and a battery system including the same.
- the module includes an SR latch including three terminals to which a fusion detection signal according to whether the positive contactor is fused or not and a reset terminal to which a comparison signal according to a voltage difference between one end and the other end of the positive contactor is input, and the and an AND gate generating a compensation control signal by performing a logical product operation of a logic control signal that is an inverted output of the SR latch and a control signal that controls the negative contactor.
- the fusion protection module may further include a comparator configured to generate the comparison signal by comparing whether a difference between a voltage of one end of the positive contactor and a voltage of the other end of the positive contactor is equal to or greater than a predetermined threshold value.
- the comparison signal is applied to the positive contactor
- the AND gate may generate a compensation control signal having a level that opens the cathode contactor by the logic control signal.
- the comparison signal is applied to the positive contactor
- the AND gate may generate the compensation control signal according to the logic level of the control signal.
- the SR latch generates the logic control signal at a level corresponding to a logic level '0' when the comparison signal is at a logic level '0' and the fusion detection signal is a level corresponding to a logic level '1' and when the comparison signal is at a logic level '1' and the fusion detection signal is at a level corresponding to the logic level '0', the logic control signal is generated at a level corresponding to the logic level '1'.
- the level of the logic control signal may be maintained.
- a battery system includes a positive contactor connected between a positive electrode and a first output terminal of a battery pack, a negative contactor connected between a negative electrode and a second output terminal of the battery pack, the positive contactor, and A main control unit (MCU) for controlling the opening and closing of the negative contactor and generating a fusion detection signal depending on whether the positive contactor is fusion-spliced, and a voltage difference between one end and the other end of the positive contactor is predetermined.
- the negative contactor is controlled according to a control signal for controlling the negative contactor received from the MCU when the voltage is greater than the threshold of , and when the voltage difference between both ends is less than the predetermined threshold, the negative contactor is operated regardless of the control signal.
- the fusion protection module includes a comparator generating the comparison signal by comparing whether the voltage difference between the two terminals is equal to or greater than the predetermined threshold value, a third terminal to which the fusion detection signal is input, and a reset terminal to which the comparison signal is input.
- SR latch including , and an AND gate generating a compensation control signal by performing a logical product operation of a logic control signal that is an inverted output of the SR latch and the control signal.
- the comparator determines the voltage difference between the two terminals.
- the SR latch may generate the logic control signal having a first level corresponding to a logic level '0'.
- the AND gate may generate a compensation control signal having a level that opens the cathode contactor according to the logic control signal of the first level.
- the comparator determines the voltage difference between the two terminals.
- the SR latch may generate the logic control signal of a second level corresponding to a logic level '1'.
- the AND gate may generate the compensation control signal having a level corresponding to the control signal, based on the logic control signal of the second level.
- the present invention provides a fusion protection module capable of preventing a dangerous situation in advance by preventing multiple contactor fusion when positive contactor fusion occurs, and a battery system including the same.
- FIG. 1 is a diagram schematically illustrating a battery system according to an embodiment.
- FIG. 2 is a diagram illustrating a fusion protection module according to an embodiment.
- FIG. 3 is a waveform diagram illustrating signals of a battery system in a steady state according to an embodiment.
- FIG. 4 is a waveform diagram illustrating signals of a battery system in a fusion junction state of a positive contactor according to an exemplary embodiment.
- FIG. 5 is a waveform diagram illustrating signals of a battery system in a fusion junction state of a positive contactor according to an exemplary embodiment.
- the present invention provides hardware for preventing fusion splicing of multiple contactors when fusion splicing of a positive contactor connected to a positive (+) pole of a battery occurs.
- any software of the battery management system uses the SR latch and the AND gate to detect the negative (-) pole of the battery. Even if the negative contactor close command is executed, the negative contactor is not closed.
- the present invention checks whether the positive contactor is fused or not and resets the SR latch only when the fusion situation is resolved.
- modules and/or “unit” for components used in the following description are given or used interchangeably in consideration of ease of writing the specification, and do not themselves have a meaning or role distinct from each other.
- terms such as “... unit”, “... unit”, and “module” described in the specification mean a unit that processes at least one function or operation, which may be implemented as hardware or software or a combination of hardware and software. there is.
- FIG. 1 is a diagram schematically illustrating a battery system according to an embodiment.
- an external device 2 is connected between both output terminals P+ and P- of the battery system 1, and when the relays 21 and 22 are closed, the battery pack 10 and the external device 2 can be electrically connected.
- a link capacitor CL is connected between both output terminals P+ and P- of the battery system 1, and the voltage of both ends of the link capacitor CL is the output voltage of the battery system 1.
- the battery system 1 When the external device 2 is an electric load, the battery system 1 operates as a power source supplying energy to the electric load 2 and can be discharged.
- the electric load may be a mobile device or an energy storage system (ESS), and the mobile device may be, for example, an electric vehicle, a hybrid vehicle, or a smart mobility vehicle.
- the battery system 1 When the external device 2 is a charger, the battery system 1 may be charged by receiving energy from the power system through the charger 2 .
- the battery system 1 includes a battery pack 10, a positive contactor 21, a negative contactor 22, a precharge contactor 23, a precharge resistor 24, a current sensor 25, fusion protection module 30, and a battery management system (BMS) 100.
- BMS battery management system
- the battery pack 10 includes a plurality of battery cells 10_1 to 10_4 connected in series.
- the battery pack 10 is illustrated as including four battery cells 10_1 to 10_4 connected in series, but this is an example and the invention is not limited thereto.
- five or more battery cells may be connected in series, or a plurality of two or more battery cells connected in parallel may be connected in series.
- the positive contactor 21 is connected between the positive electrode and the output terminal (P+) of the battery pack 10, and the negative contactor 22 is connected between the negative electrode and the output terminal (P-) of the battery pack 10, ,
- the precharge contactor 23 and the precharge resistor 24 connected in series are connected in parallel with the positive contactor 21 and connected between the positive electrode of the battery pack 10 and the output terminal P+.
- the positive, negative, and precharge contactors 21, under the control of the main control unit (MCU) 110 of the BMS 100 22, 23) can be controlled.
- the positive contactor 21 may be opened or closed according to the control signal SR1
- the negative contactor 22 may be opened or closed according to the control signal SR2
- the precharge contactor 23 may be opened or closed according to the control signal SR3. .
- the current sensor 25 may sense current flowing in the battery pack 10 and transmit a current sensing signal IS indicating the sensed current to the MCU 110 .
- the BMS 100 includes a Main Control Unit (MCU) 110 and a cell management module 120 .
- MCU Main Control Unit
- the cell management module 120 is connected to the plurality of battery cells 10_1 to 10_4, measures the cell voltage and temperature of each of the plurality of battery cells 10_1 to 10_4, transmits the measured voltage and temperature to the MCU 110, and transmits the data to the MCU 110.
- a balancing operation of a specific cell among a plurality of battery cells 10_1 to 10_4 may be performed according to a cell balancing control signal received from ).
- the MCU 110 is installed with software including programs for charge/discharge control, cell balancing control, and protection operation control for the battery pack 10 .
- the MCU 110 may control charging/discharging, cell balancing, and protection operations of the battery pack 10 based on the cell management module 120, the current sensor 25, and information and signals received from the outside.
- the MCU 110 closes the negative contactor 22 and the precharge contactor 23, and after a predetermined period, the positive contactor (21) can be closed. At this time, for a predetermined period, from the point of time when the precharge contactor 23 is closed, the link capacitor voltage charged in the link capacitor CL reaches a predetermined ratio (eg, 95%) to the voltage of the battery pack 10. It can be set to a period up to a point in time.
- the MCU 110 may open the precharge contactor 23 after closing the positive contactor 21 .
- the positive and negative contactors 21 and 22 are closed to form a charging current path or a discharging current path.
- the MCU 110 may control opening or closing of the positive contactor, the negative contactor, and the precharge contactor by adjusting the levels of the plurality of control signals SR1 to SR3.
- the MCU 110 sets a predetermined threshold value between the voltage of one end of the positive contactor 21 (VA) and the voltage of the other end of the positive contactor 21 (VB). When it is less than , it can be judged as a fusion junction state of the positive electrode contactor 21 .
- the voltage VA may be the voltage of one end of the positive contactor 21 adjacent to the positive electrode of the battery pack 10
- the voltage VB may be the voltage of the other end of the positive contactor 21 adjacent to the output terminal P+. .
- the MCU 110 detects the fusion state of the positive contactor 21 and generates a fusion detection signal CST indicating the detected state.
- the MCU 110 generates a high-level fusion detection signal (CST) when detecting the fusion state of the positive contactor 21, and generates a low-level fusion detection signal (CST) when the fusion state is not normal. CST) can be created.
- the MCU 110 may generate the fusion detection signal CST at a low level according to the fusion clear signal supplied from the outside. For example, when the fusion of the positive contactor 21 is physically solved by maintenance, the BMS 100 may receive a fusion clear signal from the outside through communication and transmit it to the MCU 110. . Then, the MCU 110 may reset the high level fusion detection signal CST to a low level.
- the fusion protection module 30 receives the control signal SR2 from the MCU 110, and when the positive contactor 21 is in a fusion state, the negative contactor 22 regardless of the level of the control signal SR2.
- a compensation control signal (SRC2) having a level that opens the SRC2 is generated and supplied to the negative contactor 22, and when the positive contactor 21 is in a normal state, not fusion-spliced, compensation is controlled according to the level of the control signal SR2.
- a signal SRC2 can be generated and supplied to the negative contactor 22.
- FIG. 2 is a diagram illustrating a fusion protection module according to an embodiment.
- the fusion protection module 30 includes a comparator 31 , an SR latch 32 , and an AND gate 33 .
- the comparator 31 compares the voltage VA of one end and the voltage VB of the other end of the positive contactor 21, and generates a high level output when the difference between the voltage VA and the voltage VB is greater than or equal to a predetermined threshold, Otherwise, it produces a low-level output.
- the output of the comparator 31 is referred to as a comparison signal CS.
- the comparator 31 is a component for determining whether the positive contactor 21 is fused or not, and when the positive contactor 21 is not in a fusion spliced state, the threshold value between the voltage VA and the voltage VB is higher. Therefore, the comparator 31 can generate and output a high-level comparison signal CS. When the positive contactor 21 is in a fusion junction state, since the difference between the voltage VA and the voltage VB is smaller than a threshold value, the comparator 31 can generate and output a low-level comparison signal CS.
- the SR latch 32 outputs an output and an inverted output according to the logic level of the signal supplied to the set terminal S and the logic level of the signal supplied to the reset terminal R through the output terminal Q and the inverted output terminal Q'.
- the inverted output of the SR latch 32 is provided to the AND gate 33, and the inverted output of the SR latch 32 is referred to as a logic control signal (LCS).
- the logic level of the signal supplied to the set terminal (S) and the reset terminal (R) of the SR latch 32 may be '0' or '1'.
- the fusion detection signal CST is input to the three terminals S of the SR latch 32, and the comparison signal CS is input to the reset terminal R of the SR latch 32.
- a method for determining the logic level of the output and the inverted output according to the logic level of the signals input to the set stage (S) and the reset stage (R) of the SR latch 32 is shown in Table 1 below.
- the AND gate 33 generates a compensation control signal SRC2 by performing a logical product operation on the control signal SR2 and the logic control signal LCS.
- the AND gate 33 When the logic control signal LCS has a low level corresponding to the logic level '0', the AND gate 33 generates the low level compensation control signal SRC2 regardless of the level of the control signal SR2.
- the negative contactor 22 is opened by the compensation control signal SRC2. While the logic control signal LCS is at a low level, the negative contactor 22 may be maintained in an open state.
- the AND gate ( 33) generates the compensation control signal SRC2 according to the logic level of the control signal SR2.
- the AND gate 33 when the control signal SR2 is at a high level corresponding to the logic level '1' indicating the closing of the negative contactor 22, the AND gate 33 generates a high level compensation control signal SRC2. .
- the control signal SR2 has a logic level corresponding to the logic level '0' indicating the opening of the negative contactor 22, the AND gate 33 generates a low level compensation control signal SRC2.
- the negative contactor 22 is closed by the high level compensation control signal SRC2 and opened by the low level compensation control signal SRC2.
- FIG. 3 is a waveform diagram illustrating signals of a battery system in a steady state according to an embodiment.
- the control signal SR2 becomes a high level and the negative contactor 22 is closed.
- the control signal SR3 becomes high and the precharge contactor 23 is closed.
- Time point T1 may be earlier than time point T2, or two time points T1 and T2 may be the same.
- the control signal SR1 becomes high level and the positive contactor 21 is closed.
- the control signal SR3 becomes low level and the precharge contactor 23 is opened.
- the voltage difference between voltage VA and voltage VB in a normal state is greater than or equal to a threshold value and comparison signal CS is at a high level. Since it is in a normal state, the fusion detection signal CST is at a low level. Accordingly, the logic control signal LCS has a high level due to the high level comparison signal CS.
- the positive contactor 21 is closed so that the voltage difference between voltage VA and voltage VB is less than the threshold value and comparison signal CS is at a low level. Since the fusion detection signal CST and the comparison signal CS have low levels, the SR latch 32 maintains the logic control signal LCS at a high level. Since the high-level logic control signal LCS is input to the AND gate 33, the AND gate 33 generates the compensation control signal SRC2 according to the control signal SR2. Accordingly, the compensation control signal SRC2 may have the same waveform as the control signal SR2.
- the control signals SR1 and SR2 become low, and the positive contactor 21 and the negative contactor 22 are opened.
- the voltage difference between the voltage VA and the voltage VB is greater than or equal to the threshold and the comparison signal CS is at a high level.
- the SR latch 32 continuously maintains the logic control signal LCS at a high level according to the high level comparison signal CS.
- the MCU 110 diagnoses whether the positive contactor 21 is fused or not. For example, at time T6, the MCU 110 detects fusion of the positive contactor 21 and the fusion detection signal CST may rise to a high level.
- FIG. 4 is a waveform diagram illustrating signals of a battery system in a fusion junction state of a positive contactor according to an exemplary embodiment.
- FIG. 4 After the fusion of the positive contactor 21 is detected, the actual fusion of the positive contactor 21 is not resolved, and fault clear is performed by the software installed in the MCU 110. It is a waveform diagram for a case where the fusion detection signal CST is changed from a high level to a low level at time T7.
- the AND gate 33 outputs the low-level compensation control signal SRC2 regardless of the control signal SR2. For example, at time T8, the control signal SR2 rises to a high level, but the compensation control signal SRC2 remains at a low level.
- FIG. 5 is a waveform diagram illustrating signals of a battery system in a fusion junction state of a positive contactor according to an exemplary embodiment.
- fault clear is performed by the software installed in the MCU 110 or This is a waveform diagram for a case where a signal for clearing a defect is delivered to the BMS 100 from the outside. For example, it is assumed that the fusion junction of the positive contactor 21 is completed at the time point T9.
- the fusion junction of the positive contactor 21 is resolved, the voltage difference between the voltage VA and the voltage VB becomes equal to or greater than the threshold value, and the comparison signal CS becomes a high level.
- the fusion detection signal CST is changed from a high level to a low level due to the defect clearing.
- the SR latch 32 generates a high-level logic control signal LCS according to the high-level comparison signal CS and the low-level fusion detection signal CST. Therefore, the AND gate 33 determines and outputs the level of the compensation control signal SRC2 according to the control signal SR2.
- the AND gate 33 changes the compensation control signal SRC2 from the low level to the high level. is maintained as
- a signal level corresponding to a logic level '0' is a low level
- a signal level corresponding to a logic level '1' is a high level
- the input/output signals may have a low level corresponding to a logic level '0' and a high level corresponding to a logic level '1'.
- this is an example for explaining the invention, and the invention is not limited thereto.
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- Power Engineering (AREA)
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- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
- Protection Of Static Devices (AREA)
Abstract
Description
S | R | Q | Q’ |
0 | 0 | 이전 출력 | 이전 반전 출력 |
0 | 1 | 0 | 1 |
1 | 0 | 1 | 0 |
1 | 1 | 0 | 0 |
Claims (11)
- 배터리 팩의 양극과 제1 출력단 사이에 연결되어 있는 양극 컨택터의 융접합에 따라 상기 배터리 팩의 음극과 제2 출력단 사이에 연결되어 있는 음극 컨택터를 제어하는 융접합 보호 모듈에 있어서,상기 양극 컨택터의 융접합 여부에 따른 융접합 감지 신호가 입력되는 셋단 및 상기 양극 컨택터의 일단 및 타단 간의 전압차에 따른 비교 신호가 입력되는 리셋단을 포함하는 SR 래치; 및상기 SR 래치의 반전 출력인 논리 제어 신호 및 상기 음극 컨택터를 제어하는 제어 신호를 논리 곱 연산하여 보상 제어 신호를 생성하는 AND 게이트를 포함하는, 융접합 보호 모듈.
- 제1항에 있어서,상기 양극 컨택터의 일단 전압과 상기 양극 컨택터의 타단 전압 간의 차가 소정의 임계치 이상인지 비교하여 상기 비교 신호를 생성하는 비교기를 더 포함하는, 융접합 보호 모듈.
- 제1항에 있어서,상기 양극 컨택터의 융접합이 감지되어 상기 융접합 감지 신호가 제1 레벨이 되고, 상기 융접합 감지 신호가 상기 제1 레벨과 다른 제2 레벨로 변경된 조건에서,상기 비교 신호가 상기 양극 컨택터의 일단 및 타단 간의 전압차가 소정의 임계치 미만을 지시하는 레벨일 때, 상기 논리 제어 신호에 의해 상기 AND 게이트는 상기 음극 컨택터를 개방시키는 레벨의 보상 제어 신호를 생성하는, 융접합 보호 모듈.
- 제1항에 있어서,상기 양극 컨택터의 융접합이 감지되어 상기 융접합 감지 신호가 제1 레벨이 되고, 상기 융접합 감지 신호가 상기 제1 레벨과 다른 제2 레벨로 변경된 조건에서,상기 비교 신호가 상기 양극 컨택터의 일단 및 타단 간의 전압차가 소정의 임계치 이상을 지시하는 레벨일 때, 상기 AND 게이트는 상기 제어 신호의 논리 레벨에 따라 상기 보상 제어 신호를 생성하는, 융접합 보호 모듈.
- 제1항에 있어서,상기 SR 래치는,상기 비교 신호가 논리 레벨 ‘0’에, 상기 융접합 감지 신호가 논리 레벨 ‘1’에 대응하는 레벨일 때, 상기 논리 제어 신호를 논리 레벨 ‘0’에 대응하는 레벨로 생성하고,상기 비교 신호가 논리 레벨 ‘1’에, 상기 융접합 감지 신호가 논리 레벨 ‘0’에 대응하는 레벨일 때, 상기 논리 제어 신호를 논리 레벨 ‘1’에 대응하는 레벨로 생성하며,상기 비교 신호 및 상기 융접합 감지 신호가 논리 레벨 ‘0’에 대응하는 레벨일 때, 상기 논리 제어 신호의 레벨을 유지하는, 융접합 보호 모듈.
- 배터리 팩의 양극과 제1 출력단 사이에 연결되어 있는 양극 컨택터;상기 배터리 팩의 음극과 제2 출력단 사이에 연결되어 있는 음극 컨택터;상기 양극 컨택터 및 상기 음극 컨택터의 개방 및 닫힘을 제어하고, 상기 양극 컨택터의 융접합 여부에 따라 융접합 감지 신호를 생성하는 MCU(Main Control Unit); 및상기 양극 컨택터의 일단 및 타단 간의 양단 전압 차가 소정의 임계치 이상일 때 상기 MCU로부터 수신되는 상기 음극 컨택터를 제어하기 위한 제어 신호에 따라 상기 음극 컨택터를 제어하고, 상기 양단 전압 차가 상기 소정의 임계치 미만일 때 상기 제어 신호에 관계없이 상기 음극 컨택터를 개방으로 유지하는 융접합 보호 모듈을 포함하는, 배터리 시스템.
- 제6항에 있어서,상기 융접합 보호 모듈은,상기 양단 전압 차가 상기 소정의 임계치 이상인지 비교하여 상기 비교 신호를 생성하는 비교기;상기 융접합 감지 신호가 입력되는 셋단 및 상기 비교 신호가 입력되는 리셋단을 포함하는 SR 래치; 및상기 SR 래치의 반전 출력인 논리 제어 신호 및 상기 제어 신호를 논리 곱 연산하여 보상 제어 신호를 생성하는 AND 게이트를 포함하는, 배터리 시스템.
- 제7항에 있어서,상기 양극 컨택터의 융접합이 감지되어 상기 융접합 감지 신호가 제1 레벨이 되고, 상기 융접합 감지 신호가 상기 제1 레벨과 다른 제2 레벨로 변경된 조건에서,상기 비교기가 상기 양단 전압 차가 상기 소정의 임계치 미만을 지시하는 레벨의 상기 비교 신호를 생성할 때, 상기 SR 래치는 논리 레벨 ‘0’에 대응하는 제1 레벨의 상기 논리 제어 신호를 생성하는, 배터리 시스템.
- 제8항에 있어서,상기 AND 게이트는 상기 제1 레벨의 상기 논리 제어 신호에 따라 상기 음극 컨택터를 개방시키는 레벨의 보상 제어 신호를 생성하는, 배터리 시스템.
- 제7항에 있어서,상기 양극 컨택터의 융접합이 감지되어 상기 융접합 감지 신호가 제1 레벨이 되고, 상기 융접합 감지 신호가 상기 제1 레벨과 다른 제2 레벨로 변경된 조건에서,상기 비교기가 상기 양단 전압 차가 상기 소정의 임계치 이상을 지시하는 레벨의 비교 신호를 생성할 때, 상기 SR 래치는 논리 레벨 ‘1’에 대응하는 제2 레벨의 상기 논리 제어 신호를 생성하는, 배터리 시스템.
- 제10항에 있어서,상기 AND 게이트는, 상기 제2 레벨의 상기 논리 제어 신호에 의해, 상기 제어 신호에 따른 레벨의 상기 보상 제어 신호를 생성하는, 배터리 시스템.
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