KR102544746B1 - Discharge Battery System - Google Patents

Discharge Battery System Download PDF

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KR102544746B1
KR102544746B1 KR1020210051604A KR20210051604A KR102544746B1 KR 102544746 B1 KR102544746 B1 KR 102544746B1 KR 1020210051604 A KR1020210051604 A KR 1020210051604A KR 20210051604 A KR20210051604 A KR 20210051604A KR 102544746 B1 KR102544746 B1 KR 102544746B1
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supercapacitor
lithium ion
current
iron phosphate
phosphate battery
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KR1020210051604A
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Korean (ko)
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KR20220145019A (en
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김혁
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정도훈
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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
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/005—Electro-mechanical devices, e.g. switched
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
    • 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
    • G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
    • G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
    • G01R19/16542—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies for batteries
    • 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
    • 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
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • 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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/20—Off-Road Vehicles
    • B60Y2200/24—Military vehicles
    • 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
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter
    • 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
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/50—Charging of capacitors, supercapacitors, ultra-capacitors or double layer capacitors

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

본 발명은 방전 배터리 시스템에 관한 것으로, 장갑차의 소비 전력량을 일정시간 유지하는 리튬이온배터리; 장갑차 시동에 따른 돌입전류를 출력하는 슈퍼캐패시터; 리튬이온배터리와 연결 여부를 결정하는 제1 및 제2 스위치; 슈퍼커패시터와 연결 여부를 결정하는 제3 스위치; 상기 슈퍼커패시터 저장용량의 보존으로 장갑차의 시동 돌입전류를 보증하는 DC/DC 컨버터; 상기 리튬이온배터리의 충전 및 방전 전류와 슈퍼캐패시터의 충전전류를 감시하는 제1 및 제2 보호휴즈 및 전류감지션트; 및 상기 리튬이온배터리, 슈퍼캐패시터, 제1 내지 제3 스위치, DC/DC 컨버터, 제1 및 제2 보호휴즈 및 전류감지션트를 제어하는 제어부;를 포함하되, 상기 리튬이온배터리를 통해 전력량을 유지하면서 장갑차 시동 시 슈퍼커패시터로 순간 대전류를 방전시키는 것을 특징으로 한다.The present invention relates to a discharge battery system, comprising: a lithium ion battery for maintaining power consumption of an armored vehicle for a certain period of time; A supercapacitor that outputs an inrush current according to the starting of the armored vehicle; First and second switches determining whether to connect to the lithium ion battery; A third switch for determining whether to connect to the supercapacitor; A DC/DC converter that guarantees the starting inrush current of the armored vehicle by preserving the storage capacity of the supercapacitor; first and second protective fuses and current sensing shunts monitoring the charging and discharging current of the lithium ion battery and the charging current of the supercapacitor; and a control unit controlling the lithium ion battery, the supercapacitor, the first to third switches, the DC/DC converter, the first and second protection fuses, and the current sensing shunt, wherein the amount of power is maintained through the lithium ion battery. It is characterized by discharging instantaneous large current with a supercapacitor when starting an armored vehicle while doing so.

Description

방전 배터리 시스템{Discharge Battery System} Discharge battery system {Discharge Battery System}

본 발명은 방전 배터리 시스템에 관한 것으로, 더욱 상세하게는 장갑차 시동용 리튬이온배터리에 슈퍼커패시터를 결합한 복합형 고능률 방전 배터리 시스템에 관한 것이다.The present invention relates to a discharge battery system, and more particularly, to a hybrid high-efficiency discharge battery system in which a supercapacitor is coupled to a lithium ion battery for starting an armored vehicle.

장갑차 등의 중대형 기갑 차량은 일반 내연기관 차량에서의 시동을 포함한 운용 조건보다 더욱 가혹한 조건에서의 운용이 요구된다. 특히 온도 환경 및 가혹조건에서도 기동 및 운용이 보증되는 운용 안정성 확보가 필요하다.Medium and large-sized armored vehicles such as armored vehicles require operation in harsher conditions than operating conditions including starting in general internal combustion engine vehicles. In particular, it is necessary to secure operational stability that guarantees startup and operation even in temperature environments and harsh conditions.

일반적으로 중대형 기갑 차량은 가격이 저렴한 납축전지를 사용하고 있다. 그러나 납축전지는 가격이 저렴한 반면 가혹한 온도 환경조건을 만족하기가 어렵고 사용 수명이 짧은 문제점이 있다. In general, medium and large armored vehicles use inexpensive lead-acid batteries. However, lead-acid batteries are inexpensive, but have problems in that they are difficult to satisfy harsh environmental conditions and have a short service life.

이러한 문제를 해결하기 위한 방법으로 리튬이온 배터리의 적용이 활성화되고는 있지만, 일반적인 범위에서 납축전지는 -10℃~50℃, 리튬배터리는 -20℃~55℃, 리튬인산철배터리는 -30℃~60℃ 등으로 제한된 온도 환경조건을 가진다. As a way to solve this problem, the application of lithium ion batteries is being activated, but in the general range, lead-acid batteries are -10℃ to 50℃, lithium batteries are -20℃ to 55℃, and lithium iron phosphate batteries are -30℃. It has limited temperature environment conditions such as ~60℃.

한편, 장갑차 등 특장환경에서 기동에 따른 순간 대전류 출력 요구에 적합한 배터리는 비싼 가격 임에도 불구하고 고가의 군용전용 리튬배터리를 사용하고 있는 실정이다. 특히 리튬이온인산철배터리를 사용하는 경우 일정량의 전력량을 저장하는데 유용하며 수명이 긴데 반해, 순간 대전류 방전의 전류량이 5~6℃ 정도로 작고 그 이상의 대전류 방전에는 수명에 급격한 장애를 초래하는 문제점이 있다.On the other hand, batteries suitable for the demand for instantaneous large current output according to start-up in a specially equipped environment such as armored vehicles are using expensive lithium batteries for military use despite their high prices. In particular, when using a lithium ion iron phosphate battery, it is useful for storing a certain amount of power and has a long lifespan, whereas the current amount of instantaneous high current discharge is small at about 5 to 6 ° C. .

상기와 같은 문제점을 해결하기 위한 본 발명의 목적은 일정량의 전력량을 저장하는데 유용하며 수명이 긴 리튬이온인산철배터리를 장갑차 시동 시 순간 대전류 방전이 가능한 슈퍼커패시터와 결합하여 가격이 싸면서 온도환경 조건을 만족하고 기동 및 운용 신뢰성을 가질 수 있는 방전 배터리 시스템을 제공하는 데 있다. The object of the present invention to solve the above problems is to combine a lithium ion iron phosphate battery, which is useful for storing a certain amount of power and has a long lifespan, with a supercapacitor capable of instantaneous high current discharge when an armored vehicle is started, at a low price and under temperature environmental conditions. It is to provide a discharge battery system that satisfies and can have start-up and operational reliability.

상기와 같은 목적을 달성하기 위한 본 발명의 방전 배터리 시스템은 장갑차의 소비 전력량을 일정시간 유지하는 리튬이온배터리; 장갑차 시동에 따른 돌입전류를 출력하는 슈퍼캐패시터; 리튬이온배터리와 연결 여부를 결정하는 제1 및 제2 스위치; 슈퍼커패시터와 연결 여부를 결정하는 제3 스위치; 상기 슈퍼커패시터 저장용량의 보존으로 장갑차의 시동 돌입전류를 보증하는 DC/DC 컨버터; 상기 리튬이온배터리의 충전 및 방전 전류와 슈퍼캐패시터의 충전전류를 감시하는 제1 및 제2 보호휴즈 및 전류감지션트; 및 상기 리튬이온배터리, 슈퍼캐패시터, 제1 내지 제3 스위치, DC/DC 컨버터, 제1 및 제2 보호휴즈 및 전류감지션트를 제어하는 제어부;를 포함하되, 상기 리튬이온배터리를 통해 전력량을 유지하면서 장갑차 시동 시 슈퍼커패시터로 순간 대전류를 방전시키는 것을 특징으로 한다.Discharge battery system of the present invention for achieving the above object is a lithium ion battery for maintaining the power consumption of the armored vehicle for a certain period of time; A supercapacitor that outputs an inrush current according to the starting of the armored vehicle; First and second switches determining whether to connect to the lithium ion battery; A third switch for determining whether to connect to the supercapacitor; A DC/DC converter that guarantees the starting inrush current of the armored vehicle by preserving the storage capacity of the supercapacitor; first and second protective fuses and current sensing shunts monitoring the charging and discharging current of the lithium ion battery and the charging current of the supercapacitor; and a control unit controlling the lithium ion battery, the supercapacitor, the first to third switches, the DC/DC converter, the first and second protection fuses, and the current sensing shunt, wherein the amount of power is maintained through the lithium ion battery. It is characterized by discharging instantaneous large current with a supercapacitor when starting an armored vehicle while doing so.

상기 DC/DC 컨버터는 장갑차가 정차 중일 경우 리튬이온배터리 전압(Vb)을 입력 받아서 슈퍼캐패시터에 전압(Vs)을 공급하는 것을 특징으로 한다.The DC / DC converter is characterized in that when the armored vehicle is stopped, it receives the lithium ion battery voltage (Vb) and supplies the voltage (Vs) to the supercapacitor.

상기 제어부는 리튬이온배터리의 전압(Vb)이 충전 최고 전압 이하일 경우 SW11와 SW12를 온(on)시켜 충전시키는 것을 특징으로 한다. The controller is characterized by turning on SW11 and SW12 to charge when the voltage (Vb) of the lithium ion battery is less than the maximum charging voltage.

상기 제어부는 슈퍼캐패시터의 전압(Vs)이 충전 최고 전압치 이하일 경우 SW2를 온(on)시켜 충전시키는 것을 특징으로 한다.The control unit turns on SW2 to charge the supercapacitor when the voltage (Vs) of the supercapacitor is less than or equal to the maximum charging voltage.

상기 제어부는 (+)출력단자(P)와 (-)출력단자(N) 전압을 감지하여 리튬이온배터리와 슈퍼캐패시터의 과충전 및 과방전을 보호하는 것을 특징으로 한다.The control unit detects voltages of the (+) output terminal (P) and (-) output terminal (N) to protect the lithium ion battery and the supercapacitor from overcharging and overdischarging.

상기 제어부는 리튬이온배터리의 셀 전압을 감지하여 과전압과 저전압으로부터 리튬이온배터리 셀을 보호하는 것을 특징으로 한다. The control unit detects the cell voltage of the lithium ion battery and protects the lithium ion battery cell from overvoltage and undervoltage.

상기 제어부는 슈퍼캐패시터의 셀 전압을 감지하여 과전압으로부터 슈퍼캐패시터 셀을 보호하는 것을 특징으로 한다.The controller may detect a cell voltage of the supercapacitor and protect the supercapacitor cell from overvoltage.

상기 제어부는 전류감지션트(IS1)로부터 리튬이온배터리로의 충전전류, 방전전류를 감시하여 과충전, 과방전 및 단락을 보호하는 것을 특징으로 한다. The control unit monitors the charging current and discharging current from the current sensing shunt (IS1) to the lithium ion battery to protect overcharge, overdischarge and short circuit.

상기 제어부는 전류감지션트(IS2)로부터 슈퍼캐패시터로의 충전전류를 감시하여 과충전을 보호하는 것을 특징으로 한다. The control unit monitors the charging current from the current sensing shunt IS2 to the supercapacitor to protect against overcharging.

상기와 같이, 본 발명에 따르면 전력량을 저장하는데 유용하며 수명이 긴 리튬이온인산철 배터리를 통해 전력량을 유지하면서 슈퍼커패시터로 순간 대전류 방전함으로써 장수명 보증이 가능하다. As described above, according to the present invention, it is possible to guarantee a long lifespan by instantaneously discharging a high current to a supercapacitor while maintaining an amount of power through a lithium ion iron phosphate battery that is useful for storing power and has a long lifespan.

도 1은 본 발명에 따른 방전 배터리 시스템의 회로도이다.1 is a circuit diagram of a discharged battery system according to the present invention.

아래에서는 첨부한 도면을 참조하여 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 본 발명의 실시 예를 상세히 설명한다. 그러나 본 발명은 여러 가지 상이한 형태로 구현될 수 있으며 여기에서 설명하는 실시 예에 한정되지 않는다. Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily practice with reference to the accompanying drawings. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein.

그러면 본 발명에 따른 방전 배터리 시스템의 바람직한 실시예에 대하여 자세히 설명하기로 한다.Then, a preferred embodiment of the discharged battery system according to the present invention will be described in detail.

도 1은 본 발명에 따른 방전 배터리 시스템의 회로도이다. 1 is a circuit diagram of a discharged battery system according to the present invention.

도 1을 참조하면, 본 발명의 방전 배터리 시스템은 리튬이온배터리(100), 슈퍼캐패시터(200), 제1 내지 제3 스위치(310 내지 330), DC/DC 컨버터(400), 제1 및 제2 보호휴즈 및 전류감지션트(510)(520), 제어부(600)를 포함하여 구성된다. Referring to FIG. 1, the discharge battery system of the present invention includes a lithium ion battery 100, a supercapacitor 200, first to third switches 310 to 330, a DC/DC converter 400, first and second switches. It is composed of 2 protective fuses, current sensing shunts 510 and 520, and a controller 600.

상기 리튬이온배터리(100)는 장갑차 전체의 소비 전력량을 일정시간 유지시켜 줄 수 있은 용량을 가진다. 여기서, 상기 리튬이온배터리(100)는 리튬이온인산철배터리를 적용하며, 이에 한정하지 않는다.The lithium ion battery 100 has a capacity capable of maintaining the power consumption of the entire armored vehicle for a certain period of time. Here, the lithium ion battery 100 applies a lithium ion iron phosphate battery, but is not limited thereto.

상기 슈퍼캐패시터(200)는 시동에 따른 돌입전류를 출력해 준다. 이로 인해, 리튬이온배터리(100)를 보호하여 수명을 보증할 수 있다.The supercapacitor 200 outputs an inrush current according to startup. Due to this, the lithium ion battery 100 can be protected and lifespan can be guaranteed.

상기 제1 및 제2 스위치(310)(320)는 제어부(600)를 통해 온(On) 또는 오프(Off)되어 리튬이온배터리(100)의 연결여부를 결정하고, 상기 제3 스위치(330)는 제어부(600)를 통해 온(On) 또는 오프(Off)되어 슈퍼커패시터(200)의 연결여부를 결정한다. 여기서, 상기 제1 및 제2 스위치(310)(320)는 리튬이온배터리(100)와 (-)출력단자(N) 사이에 직렬로 연결하고, 상기 제3 스위치(330)는 슈퍼커패시터(200)와 (-)출력단자(N) 사이에 연결한다.The first and second switches 310 and 320 are turned on or off through the controller 600 to determine whether the lithium ion battery 100 is connected, and the third switch 330 is turned on or off through the controller 600 to determine whether the supercapacitor 200 is connected. Here, the first and second switches 310 and 320 are connected in series between the lithium ion battery 100 and the (-) output terminal (N), and the third switch 330 is the supercapacitor 200 ) and (-) output terminal (N).

상기 DC/DC 컨버터(400)는 슈퍼커패시터(200)의 저장용량의 보존으로 장갑차의 시동 돌입전류 보증과 정차 중 탑재기기의 동력구동에 따른 돌입전류(피크 대전류) 보증과 돌입전류에 따른 리튬이온배터리(100)의 수명 저하를 방지할 수 있다.The DC/DC converter 400 preserves the storage capacity of the supercapacitor 200 to guarantee the starting inrush current of the armored vehicle, guarantee the inrush current (peak large current) according to the power driving of the mounted device while the car is stopped, and lithium ion according to the inrush current. Deterioration of lifespan of the battery 100 may be prevented.

한편, 장갑차가 정차 중일 경우 리튬이온배터리(100)는 방전하며, 이때 DC/DC 컨버터(400)는 리튬이온배터리(100) 전압(Vb)을 입력 받아서 슈퍼캐패시터(200)에 전압(Vs)을 공급하므로 Vs는 Vb + Vsw11 + Vsw12 + Vsw2가 된다. 즉, 슈퍼캐패시터(200) 전압(Vs)은 리튬이온배터리(100) 전압(Vb)보다 Vsw11 + Vsw12 + Vsw2 만큼 높다. 이와 같이 순간 대전류 방전에서 피크전류의 대부분은 슈퍼캐패시터(200)에서 출력하므로 리튬이온배터리(100)를 순간 대전류로부터 보호할 수 있다. 이때, 전류제어는 CC(Constant Current-정전류제어) 모드로 동작한다.Meanwhile, when the armored vehicle is stopped, the lithium ion battery 100 is discharged, and at this time, the DC/DC converter 400 receives the voltage Vb of the lithium ion battery 100 and supplies the voltage Vs to the supercapacitor 200. Since it is supplied, Vs becomes Vb + Vsw11 + Vsw12 + Vsw2. That is, the voltage Vs of the supercapacitor 200 is higher than the voltage Vb of the lithium ion battery 100 by Vsw11 + Vsw12 + Vsw2. In this way, since most of the peak current is output from the supercapacitor 200 in the instantaneous high current discharge, the lithium ion battery 100 can be protected from the instantaneous high current. At this time, the current control operates in CC (Constant Current-constant current control) mode.

또한, 장갑차가 운전 중일 경우 리튬이온배터리(100)가 충전이 되고 있는 상태이므로, DC/DC 컨버터(400)는 동작을 멈추고(Cont. off) 대기상태를 유지한다.In addition, since the lithium ion battery 100 is being charged while the armored vehicle is in operation, the DC/DC converter 400 stops (Cont. off) and maintains a standby state.

상기 제1 및 제2 보호휴즈 및 전류감지션트(510)(520)는 리튬이온배터리(100)의 충전 및 방전 전류를 감시하여 과충전, 과방전 및 단락 보호와 슈퍼캐패시터로(200)의 충전전류를 감시하여 과충전 보호를 한다. 이때, 과충전 보호 검출은 리튬이온배터리(100)측의 제1 보호휴즈 및 전류감지션트(510)의 전류감지션트 전류신호출력(IS1)과 슈퍼캐패시터(200)측의 제2 보호휴즈 및 전류감지션트(520)의 전류감지션트 전류신호출력(IS2)을 개별 검출한다. 여기서, 상기 제1 보호휴즈 및 전류감지션트(510)는 리튬이온배터리(100)와 (+)출력단자(P) 사이에 연결되고, 상기 제2 보호휴즈 및 전류감지션트(520)는 슈퍼커패시터(200)와 (+)출력단자(N) 사이에 연결된다.The first and second protection fuses and current sensing shunts 510 and 520 monitor the charging and discharging current of the lithium ion battery 100 to protect overcharge, overdischarge and short circuit and charge current of the supercapacitor 200 and overcharge protection. At this time, the overcharge protection detection is performed by detecting the first protection fuse on the lithium ion battery 100 side and the current sensing shunt current signal output IS1 of the current sensing shunt 510 and the second protection fuse and current sensing on the supercapacitor 200 side. The current sensing shunt current signal output (IS2) of the shunt 520 is individually detected. Here, the first protection fuse and current sensing shunt 510 are connected between the lithium ion battery 100 and the (+) output terminal P, and the second protection fuse and current sensing shunt 520 are supercapacitors. It is connected between (200) and (+) output terminal (N).

상기 제어부(600)는 리튬이온배터리(100), 슈퍼캐패시터(200), 제1 내지 제3 스위치(310 내지 330), DC/DC 컨버터(400), 제1 및 제2 보호휴즈 및 전류감지션트(510)(520)를 제어한다.The controller 600 includes a lithium ion battery 100, a supercapacitor 200, first to third switches 310 to 330, a DC/DC converter 400, first and second protection fuses, and current sensing shunts. Controls (510) (520).

이하, 상기 제어부(600)에 대하여 보다 상세히 설명한다.Hereinafter, the controller 600 will be described in more detail.

먼저, 상기 제어부(600)는 리튬이온배터리(100)측의 SW11, SW12와 슈퍼캐패시터(200)측의 SW2를 개별 제어할 수 있다. First, the controller 600 may individually control SW11 and SW12 of the lithium ion battery 100 side and SW2 of the supercapacitor 200 side.

상기 제어부(600)는 정상상태일 경우, 즉 리튬이온배터리(100)의 전압(Vb)이 충전 최고 전압 이하일 경우 SW11 on(G11=1), SW12 on(G12=1)시켜 (+)출력단자(P)로부터 전류를 리튬이온배터리(100)에 충전시키고, 슈퍼캐패시터(200)의 전압(Vs)이 충전 최고 전압 이하일 경우 SW2 on(G2=1)시켜 (+)출력단자(P)로부터 전류를 슈퍼캐패시터(200)에 충전시킨다. 이때, DC/DC컨버터(400)의 출력전류는 0이다. The controller 600 turns SW11 on (G11 = 1) and SW12 on (G12 = 1) when the voltage (Vb) of the lithium ion battery 100 is less than the maximum charging voltage in a normal state, that is, the (+) output terminal The lithium ion battery 100 is charged with current from (P), and when the voltage (Vs) of the supercapacitor 200 is less than the maximum charging voltage, SW2 is turned on (G2 = 1) so that the current from the (+) output terminal (P) is charged in the supercapacitor 200. At this time, the output current of the DC/DC converter 400 is zero.

또한, 상기 제어부(600)는 (+)출력단자(P)와 (-)출력단자(N) 전압을 감지하여 충전 최고 전압 이상에서 SW12 off(G12=0)시켜 리튬이온배터리(100)의 과충전을 보호하고, 슈퍼캐패시터(200)에서도 충전 최고 전압 이상에서 SW2 off(G2=0)시켜 과충전을 보호한다. 여기서, 과전류충전 보호 검출은 리튬이온배터리(100)측의 제1 보호휴즈 및 전류감지션트(510)의 전류감지션트 전류신호출력(IS1)과 슈퍼캐패시터(200)측의 제2 보호휴즈 및 전류감지션트(520)의 전류감지션트 전류신호출력(IS2)을 개별 검출한다.In addition, the control unit 600 detects the voltages of the (+) output terminal (P) and (-) output terminal (N) and turns off SW12 (G12 = 0) above the highest charging voltage to overcharge the lithium ion battery 100 In addition, the supercapacitor 200 also protects overcharging by turning off SW2 (G2 = 0) above the highest charging voltage. Here, the overcurrent charging protection detection is performed by the first protection fuse on the lithium ion battery 100 side and the current sensing shunt current signal output IS1 of the current sensing shunt 510 and the second protection fuse and current on the supercapacitor 200 side. The current sensing shunt current signal output IS2 of the sensing shunt 520 is individually detected.

또한, 상기 제어부(600)는 SW11 on(G11=1)시켜 리튬이온배터리(100)를 방전시킨다. 즉, SW11의 MOSFET와 SW12의 다이오드를 통하여 리튬이온배터리(100)를 방전시키며, SW2의 다이오드를 통해 슈퍼캐패시터(200)를 방전시킨다. 이때, 상기 DC/DC컨버터(400)의 출력전압(Vc)은 Vb + Vsw11 + Vsw12 + Vsw2가 되며, 출력전류는 CC(Constant Current-정전류제어) 모드로 0~5Amax이다. In addition, the control unit 600 discharges the lithium ion battery 100 by turning on SW11 (G11 = 1). That is, the lithium ion battery 100 is discharged through the MOSFET of SW11 and the diode of SW12, and the supercapacitor 200 is discharged through the diode of SW2. At this time, the output voltage (Vc) of the DC/DC converter 400 becomes Vb + Vsw11 + Vsw12 + Vsw2, and the output current is 0 to 5Amax in CC (Constant Current-constant current control) mode.

또한, 상기 제어부(600)는 SW11 off(G11=0)시켜 리튬이온배터리(100)의 과방전을 보호하며, 슈퍼캐패시터(200)는 제2 보호휴즈 및 전류감지션트(520)의 Fuse2로 과방전을 보호한다, 즉 단락에 가까운 큰 값에서는 Fuse2로서 보호한다.In addition, the controller 600 turns SW11 off (G11 = 0) to protect the lithium ion battery 100 from being over-discharged, and the supercapacitor 200 is over-discharged with the second protection fuse and Fuse2 of the current sensing shunt 520. The current is protected, that is, it is protected as Fuse2 at a large value close to short circuit.

또한, 상기 제어부(600)는 리튬이온배터리(100)의 셀 전압(Vb1~Vb4)을 감지하여 SW12 off(G12=0) 및 SW11 off(G11=0)시켜 각각 과전압 및 저전압으로부터 리튬이온배터리(100)의 셀을 보호한다.In addition, the control unit 600 senses the cell voltages (Vb1 to Vb4) of the lithium ion battery 100 and turns SW12 off (G12 = 0) and SW11 off (G11 = 0) to protect the lithium ion battery from overvoltage and undervoltage, respectively. 100) to protect the cell.

또한, 상기 제어부(600)는 슈퍼캐패시터(200)의 셀 전압(Vs1~Vs4)을 감지하여 SW2 off(G2=0)시켜 과전압으로부터 슈퍼캐패시터(200) 셀을 보호한다.In addition, the control unit 600 detects the cell voltages (Vs1 to Vs4) of the supercapacitor 200 and turns off SW2 (G2 = 0) to protect the cells of the supercapacitor 200 from overvoltage.

또한, 상기 제어부(600)는 전류감지션트(IS1)로부터 리튬이온배터리(100)로의 충전전류, 방전전류를 감시하여 과충전, 과방전 및 단락 보호를 한다.In addition, the control unit 600 monitors the charging current and discharging current from the current sensing shunt IS1 to the lithium ion battery 100 to protect overcharge, overdischarge and short circuit.

또한, 상기 제어부(600)는 전류감지션트(IS2)로부터 슈퍼캐패시터(200)로의 충전전류를 감시하여 과충전 보호를 한다.In addition, the control unit 600 monitors the charging current from the current sensing shunt IS2 to the supercapacitor 200 to protect overcharge.

그리고, 상기 제어부(600)는 DC/DC 컨버터(400) 동작을 온(on)/오프(off)한다. 즉, G2 off에서는 Cont.가 off된다.And, the controller 600 turns on/off the operation of the DC/DC converter 400. That is, in G2 off, Cont. is turned off.

한편, 도 1에서 G11는 MOSFET 방전용 스위치 게이트신호, G12는 MOSFET 충전용 스위치 게이트신호, G2는 MOSFET 충전용 스위치 게이트신호, IS1, IS2는 전류감지션트 전류신호출력이다. Meanwhile, in FIG. 1, G11 is a switch gate signal for discharging a MOSFET, G12 is a switch gate signal for charging a MOSFET, G2 is a switch gate signal for charging a MOSFET, and IS1 and IS2 are current sensing shunt current signal outputs.

이상에서 본 발명의 실시예에 대하여 상세하게 설명하였지만 본 발명의 권리범위는 이에 한정되는 것은 아니고 다음의 청구범위에서 정의하고 있는 본 발명의 기본 개념을 이용한 당업자의 여러 변형 및 개량 형태 또한 본 발명의 권리범위에 속하는 것이다.Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements made by those skilled in the art using the basic concept of the present invention defined in the following claims are also included in the scope of the present invention. that fall within the scope of the right.

100: 리튬이온배터리 200: 슈퍼캐패시터
310 내지 330: 스위치(SW) 400: DC/DC 컨버터
510,520: 보호휴즈 및 전류감지션트 600: 제어부 100: lithium ion battery 200: supercapacitor
310 to 330: switch (SW) 400: DC / DC converter
510,520: protection fuse and current sensing shunt 600: control unit

Claims (6)

장갑차의 소비 전력량을 일정시간 유지하는 리튬이온인산철배터리;
상기 장갑차 시동에 따른 돌입전류를 출력하는 슈퍼캐패시터;
상기 리튬이온인산철배터리와 연결 여부를 결정하는 제1 및 제2 스위치;
상기 슈퍼캐패시터와 연결 여부를 결정하는 제3 스위치;
상기 슈퍼캐패시터 저장용량의 보존으로 장갑차의 시동 돌입전류를 보증하는 DC/DC 컨버터;
상기 리튬이온인산철배터리의 충전 및 방전 전류와 슈퍼캐패시터의 충전전류를 감시하는 제1 및 제2 보호휴즈 및 전류감지션트; 및
상기 리튬이온인산철배터리, 슈퍼캐패시터, 제1 내지 제3 스위치, DC/DC 컨버터, 제1 및 제2 보호휴즈 및 전류감지션트를 제어하는 제어부;를 포함하되,
상기 제1 및 제2 스위치는 제어부를 통해 온(On) 또는 오프(Off)되어 리튬이온인산철배터리의 연결여부를 결정하고, 상기 제3 스위치는 제어부를 통해 온(On) 또는 오프(Off)되어 슈퍼커패시터의 연결여부를 결정하며,
상기 제어부는 리튬이온인산철배터리의 전압(Vb)이 충전 최고 전압 이하일 경우 제1 스위치(SW11)와 제2 스위치(SW12)를 온(on)시켜 (+)출력단자(P)로부터 전류를 리튬이온인산철배터리에 충전시키고, 슈퍼캐패시터의 전압(Vs)이 충전 최고 전압치 이하일 경우 제3 스위치(SW2)를 온(on)시켜 (+)출력단자(P)로부터 전류를 슈퍼캐패시터에 충전시키며,
상기 제어부는 제1 스위치(SW11)의 MOSFET와 제2 스위치(SW12)의 다이오드를 통하여 리튬이온인산철배터리를 방전시키고, 제3 스위치(SW2)의 다이오드를 통해 슈퍼캐패시터를 방전시키며,
상기 제어부는 전류감지션트(IS1)로부터 리튬이온인산철배터리로의 충전전류, 방전전류를 감시하여 과충전, 과방전 및 단락을 보호하며, 전류감지션트(IS2)로부터 슈퍼캐패시터로의 충전전류를 감시하여 과충전을 보호하며,
상기 리튬이온인산철배터리를 통해 전력량을 유지하면서 장갑차 시동 시 슈퍼커패시터로 순간 대전류를 방전시키는 것을 특징으로 하는 방전 배터리 시스템.A lithium ion iron phosphate battery that maintains the power consumption of an armored vehicle for a certain period of time;
A supercapacitor outputting an inrush current according to the starting of the armored vehicle;
first and second switches determining whether to connect to the lithium ion iron phosphate battery;
a third switch determining whether to connect to the supercapacitor;
A DC/DC converter that guarantees the starting inrush current of the armored vehicle by preserving the storage capacity of the supercapacitor;
first and second protection fuses and current sensing shunts monitoring the charging and discharging current of the lithium ion iron phosphate battery and the charging current of the supercapacitor; and
A control unit controlling the lithium ion iron phosphate battery, the supercapacitor, the first to third switches, the DC/DC converter, the first and second protection fuses, and the current sensing shunt;
The first and second switches are turned on or off through the control unit to determine whether the lithium ion iron phosphate battery is connected, and the third switch is turned on or off through the control unit. It determines whether the supercapacitor is connected or not,
The control unit turns on the first switch (SW11) and the second switch (SW12) when the voltage (Vb) of the lithium ion iron phosphate battery is less than the maximum charging voltage to supply current from the (+) output terminal (P) to lithium. Charge the ionic iron phosphate battery, and when the voltage (Vs) of the supercapacitor is less than the maximum charging voltage, turn on the third switch (SW2) to charge the supercapacitor with current from the (+) output terminal (P) ,
The controller discharges the lithium ion iron phosphate battery through the MOSFET of the first switch (SW11) and the diode of the second switch (SW12), and discharges the supercapacitor through the diode of the third switch (SW2),
The control unit monitors the charging current and discharging current from the current sensing shunt (IS1) to the lithium ion iron phosphate battery to protect overcharge, overdischarge and short circuit, and monitors the charging current from the current sensing shunt (IS2) to the supercapacitor to protect against overcharging.
A discharge battery system, characterized in that for discharging an instantaneous large current with a supercapacitor when starting an armored vehicle while maintaining an amount of power through the lithium ion iron phosphate battery. 제1항에 있어서,
상기 DC/DC 컨버터는 장갑차가 정차 중일 경우 리튬이온인산철배터리 전압(Vb)을 입력 받아서 슈퍼캐패시터에 전압(Vs)을 공급하는 것을 특징으로 하는 방전 배터리 시스템.According to claim 1,
The DC / DC converter receives the lithium ion iron phosphate battery voltage (Vb) when the armored vehicle is stopped and supplies the voltage (Vs) to the supercapacitor. 삭제delete 제1항에 있어서,
상기 제어부는 (+)출력단자(P)와 (-)출력단자(N) 전압을 감지하여 리튬이온인산철배터리와 슈퍼캐패시터의 과충전 및 과방전을 보호하는 것을 특징으로 하는 방전 배터리 시스템.According to claim 1,
The controller detects the (+) output terminal (P) and (-) output terminal (N) voltage to protect the lithium ion iron phosphate battery and the supercapacitor from overcharging and overdischarging. 제1항에 있어서,
상기 제어부는 리튬이온인산철배터리의 셀 전압을 감지하여 과전압과 저전압으로부터 리튬이온인산철배터리 셀을 보호하며, 슈퍼캐패시터의 셀 전압을 감지하여 과전압으로부터 슈퍼캐패시터 셀을 보호하는 것을 특징으로 하는 방전 배터리 시스템.According to claim 1,
The controller detects the cell voltage of the lithium ion iron phosphate battery to protect the lithium ion iron phosphate battery cell from overvoltage and undervoltage, and detects the cell voltage of the supercapacitor to protect the supercapacitor cell from overvoltage Discharge battery, characterized in that system. 삭제delete
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