KR100465400B1 - Over-discharge prevention device for vehicle battery - Google Patents
Over-discharge prevention device for vehicle battery Download PDFInfo
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- KR100465400B1 KR100465400B1 KR10-1998-0039020A KR19980039020A KR100465400B1 KR 100465400 B1 KR100465400 B1 KR 100465400B1 KR 19980039020 A KR19980039020 A KR 19980039020A KR 100465400 B1 KR100465400 B1 KR 100465400B1
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- battery
- current
- discharge
- over
- vehicle
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- 230000002265 prevention Effects 0.000 title claims abstract description 15
- 230000000903 blocking effect Effects 0.000 claims abstract description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 2
- 230000001276 controlling effect Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 208000028659 discharge Diseases 0.000 description 39
- 238000010586 diagram Methods 0.000 description 6
- 238000010248 power generation Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000007858 starting material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
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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
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/1469—Regulation of the charging current or voltage otherwise than by variation of field
- H02J7/1492—Regulation of the charging current or voltage otherwise than by variation of field by means of controlling devices between the generator output and the battery
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
Abstract
본 발명은 차량용 배터리의 과방전 방지장치에 관한 것으로, 상세하게는 차량 주행시 발전기의 무발전 혹은 저 회전수에서 큰 전기부하에 의하여 배터리가 과방전되는 것을 방지하기 위한 차량용 배터리의 과방전 방지장치에 관한 것이다.The present invention relates to an over-discharge prevention device for a vehicle battery, and more particularly, to an over-discharge prevention device for a vehicle battery for preventing the battery from being over-discharged due to a large electric load at a generator-free or low rotational speed of the generator while driving the vehicle. It is about.
본 발명에 따른 차량용 배터리의 과방전 방지장치에 의하면, 션트에 의하여 배터리의 방전전류를 측정하여 과방전을 감지하고, 과방전을 감지하면 배터리의 방전전류를 제한하거나 차단시킴으로서, 발전기의 무발전 혹은 저 회전수에서 큰 전기부하에 의하여 배터리가 과방전되는 것을 방지할 수 있다.According to the over-discharge prevention device of a vehicle battery according to the present invention, by measuring the discharge current of the battery by the shunt to detect the over-discharge, if the over-discharge is detected by limiting or blocking the discharge current of the battery, The battery can be prevented from being overdischarged by a large electric load at low rotational speed.
Description
본 발명은 차량용 배터리의 과방전 방지장치에 관한 것으로, 상세하게는 차량 주행시 발전기의 무발전 혹은 저 회전수에서 큰 전기부하에 의하여 배터리가 과방전되는 것을 방지하기 위한 차량용 배터리의 과방전 방지장치에 관한 것이다.The present invention relates to an over-discharge prevention device for a vehicle battery, and more particularly, to an over-discharge prevention device for a vehicle battery for preventing the battery from being over-discharged due to a large electric load at a generator-free or low rotational speed of the generator while driving the vehicle. It is about.
자동차에는 기관의 기동장치나 점화장치를 비롯하여 램프류. 에어컨장치 등 많은 전기장치가 있으며, 이러한 전기장치에 전력을 공급하는 전원으로 배터리와 발전기가 있다.Automobiles include engine starters and ignition devices, as well as lamps. There are many electric devices such as air conditioners, and there are batteries and generators as power sources for supplying these electric devices.
발전기(generator)는 통상 벨트에 의하여 기관에 연결되어 구동되며, 그 발전량은 기관의 회전수에 따라 다르고 발전량이 부하량보다 적은 경우에는 배터리가 전원이 되어 일시 방전한다. 그리고 발전량이 부하량보다 많은 경우에는 발전기만으로 모든 전기장치에 전력을 공급하고 배터리도 발전기에 의해 충전된다.The generator (generator) is usually connected to the engine by a belt and driven, the amount of power generation depends on the number of revolutions of the engine, and when the amount of power generation is less than the load, the battery is powered and temporarily discharged. And if the amount of power generation is greater than the load, the generator alone supplies power to all the electrical devices and the battery is also charged by the generator.
발전기와 함께 사용하는 전압조정기는 발전기의 계자코일에 흐르는 계자전류를 제어하여, 발전기의 출력전류를 조절한다. 그리하여 각 전기장치에 알맞는 전력을 공급하고, 또 배터리에 규정용량으로 충전하는 기능을 가지고 있으며, 특히 발전기와 전압조정기는 배터리를 충전하는 기능을 가졌기 때문에 충전장치라고도 부른다.The voltage regulator used with the generator controls the field current flowing through the field coil of the generator, thereby adjusting the output current of the generator. Thus, it provides the proper power for each electric device and charges the battery with the specified capacity. In particular, the generator and the voltage regulator are called the charging device because they have the function of charging the battery.
도 1은 종래의 차량용 발전기와 전압조정기의 접속회로도이다.1 is a connection circuit diagram of a conventional vehicle generator and voltage regulator.
일반적으로 차량용 발전기는 고정되어 있는 전기자코일(1)과 전기자코일(1)과 소정간격 이격되어 있으며 차량의 엔진과 벨트로 연결되어 회전하는 계자코일(3)을 갖고 있는데, 6개의 다이오드로 이루어진 정류부(2)가 접속되어 발전된 3상교류를 직류로 변환시킨다. 그리고 정류부(2)의 플러스측에는 배터리(7)의 플러스 단자가 접속되어 있으며 마이너스측에는 배터리(7)의 마이너스 단자가 접속되어 있다. 계자코일(3)의 일측은 전압조정기(4)의 포트(T)에 접속되어 있으며, 타측은 전압조정기(4)의 포트(F)에 접속되어 있다.Generally, a generator for a vehicle has a fixed armature coil 1 and an armature coil 1 spaced apart from each other by a predetermined distance, and has a field coil 3 that is connected to a vehicle engine and a belt and rotates. (2) is connected to convert the generated three-phase alternating current into direct current. The positive terminal of the battery 7 is connected to the positive side of the rectifying unit 2, and the negative terminal of the battery 7 is connected to the negative side. One side of the field coil 3 is connected to the port T of the voltage regulator 4, and the other side is connected to the port F of the voltage regulator 4.
또한 전압조정기(4)의 포트(S)는 배터리(7)의 플러스단자에 접속되어 있다. 또한 전압조정기(4)의 포트(E)는 접지되어 있다. 그리고 전압조정기(4)의 포트(L)과 배터리(7)의 플러스단자 사이에는 키스위치(6)와 램프(5)가 직렬 접속되어 있다.In addition, the port S of the voltage regulator 4 is connected to the positive terminal of the battery 7. In addition, the port E of the voltage regulator 4 is grounded. The key switch 6 and the lamp 5 are connected in series between the port L of the voltage regulator 4 and the positive terminal of the battery 7.
전술한 구성에 따른 동작을 살펴보면 다음과 같다.Looking at the operation according to the above configuration as follows.
발전기의 계자코일(3)은 회전자에 마련되어 전기자코일(1)과 일정간격 이격되어 차량의 엔진의 시동에 따라서 회전을 하게된다. The field coil 3 of the generator is provided in the rotor to be spaced apart from the armature coil 1 by a predetermined interval to rotate according to the start of the engine of the vehicle.
키스위치(6)가 온되어 차량의 시동이 걸리면, 엔진과 벨트를 통하여 연결되어 있는 계자코일(3) 역시 회전을 한다. 이때 회전하는 계자코일(3)에 전류가 흐르게 되면 계자코일(3)은 전자석이 된다. 그에 따라서 계자코일(3)에서는 자장이 형성되어 전기자코일(1)에는 자기유도법칙에 따라서 3상 교류가 발생하게 된다.When the key switch 6 is turned on to start the vehicle, the field coil 3 connected through the engine and the belt also rotates. At this time, when a current flows through the rotating field coil 3, the field coil 3 becomes an electromagnet. Accordingly, the magnetic field is formed in the field coil 3, and the three-phase alternating current is generated in the electric coil 1 according to the law of magnetic induction.
자기유도법칙에 따라서 전기자코일(1)에서 발생된 3상 교류는 정류부(2)에 의하여 직류로 변환된다. 정류부(2)는 6개의 다이오드로 이루어져 3상 교류를 직류로 변환시킨다. According to the law of magnetic induction, the three-phase alternating current generated in the armature coil 1 is converted into direct current by the rectifier 2. The rectifier 2 consists of six diodes to convert three-phase alternating current into direct current.
정류부(2)를 통하여 변환된 직류는 배터리(7)에 충전이 되며, 전기부하(8)에 공급된다.The direct current converted by the rectifier 2 is charged to the battery 7 and is supplied to the electric load (8).
그런데, 차량 주행시 발전기가 발전을 하지 않거나 엔진의 회전수가 낮을 때 차량의 전기부하로부터 큰 전력이 요구되면 배터리가 급속하게 방전되어 차량의 전력공급이 빨리 중단되는 문제점이 있었다. However, when a generator does not generate power during driving or when the engine speed is low, when a large amount of power is required from the electric load of the vehicle, the battery is rapidly discharged and the power supply of the vehicle is quickly stopped.
본 발명은 상기한 문제를 해결하기 위하여 안출된 것으로, 그 목적은 차량 주행시 발전기의 무발전 혹은 저 회전수에서 큰 전기부하에 의하여 배터리가 과방전되는 것을 방지하기 위한 차량용 배터리의 과방전 방지장치를 제공하고자 하는 것이다.The present invention has been made to solve the above problems, an object of the present invention is to provide an over-discharge prevention device of a vehicle battery for preventing the battery from being over-discharged by a large electric load at the generator-free or low rotational speed of the generator when driving the vehicle It is to provide.
상기한 목적을 실현하기 위하여 본 발명에 따른 차량용 배터리의 과방전 방지장치는, 엔진의 시동과 시동유지에 관계되는 전기부하와, 전기부하 이외의 액세서리부하와, 엔진의 회전력을 전달받아 발전하는 발전기와, 차량의 전기부하에 전류를 공급하며 발전기에서 발전된 전압에 의하여 충전되는 배터리를 구비하는 차량용 발전기에 있어서, 배터리로부터 방전되는 방전전류를 감지하는 방전전류감지부, 배터리로부터 액세서리부하로 방전되는 방전전류를 제어하는 전류조절수단, 방전전류감지부가 감지한 배터리의 방전전류에 의하여 전류조절수단을 구동하는 전류조절수단구동부를 구비하는 것을 특징으로 하는 구성이다.In order to realize the above object, the over-discharge prevention device for a vehicle battery according to the present invention includes an electric load related to starting and maintaining the engine, an accessory load other than the electric load, and a generator generating power by receiving the rotational force of the engine. And a battery for supplying current to the electric load of the vehicle and having a battery charged with the voltage generated by the generator, the vehicle generator comprising: a discharge current sensing unit for detecting a discharge current discharged from the battery; a discharge discharged from the battery to the accessory load And a current adjusting means driver for driving the current adjusting means by the current discharge means for controlling the current and the discharge current of the battery sensed by the discharge current sensing unit.
이하에서는 첨부한 도면을 참조하여 본 발명에 따른 양호한 실시 예를 상세하게 설명하겠다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment according to the present invention.
도 2는 본 발명에 따른 차량용 배터리의 과방전 방지장치의 제 1실시예의 연결도이다.2 is a connection diagram of a first embodiment of an over-discharge prevention device for a vehicle battery according to the present invention.
도 3은 본 발명에 따른 차량용 배터리의 과방전 방지장치의 제 2 실시예의 연결도이다.3 is a connection diagram of a second embodiment of the over-discharge prevention device for a vehicle battery according to the present invention.
먼저 본 발명에 따른 제 1실시예의 구성을 살펴보면, 고정되어 있는 전기자코일(11)과 전기자코일(11)과 소정간격 이격되어 있으며 차량의 엔진과 벨트로 연결되어 회전하는 계자코일(12)을 갖고 있는데, 다이오드로 이루어진 정류부(13)가 접속되어 발전된 3상교류를 직류로 변환시킨다. 그리고 정류부(13)의 플러스측에는 배터리(BAT)(40)의 플러스 단자가 접속되어 있으며 마이너스측에는 배터리(40)의 마이너스 단자가 접속되어 있다. 계자코일(12)의 일측은 전압조정기(20)의 포트(T)에 접속되어 있으며, 타측은 전압조정기(20)의 포트(F)에 접속되어 있다.First, referring to the configuration of the first embodiment according to the present invention, the armature coil 11 and the armature coil 11 is fixed and spaced apart a predetermined distance and has a field coil 12 which is connected to the engine and the belt of the vehicle to rotate The rectifier 13 made of a diode is connected to convert the generated three-phase alternating current into direct current. The positive terminal of the battery BAT 40 is connected to the positive side of the rectifier 13, and the negative terminal of the battery 40 is connected to the negative side. One side of the field coil 12 is connected to the port T of the voltage regulator 20, and the other side is connected to the port F of the voltage regulator 20.
또한 전압조정기(20)의 포트(S)는 배터리(40)의 플러스단자에 직접 접속되어 있으며, 전압조정기(20)의 포트(E)는 그라운드에 접속되어 있다.In addition, the port S of the voltage regulator 20 is directly connected to the positive terminal of the battery 40, and the port E of the voltage regulator 20 is connected to the ground.
그리고 전압조정기(20)의 포트(L)와 배터리(40)의 플러스단자 사이에는 키스위치(32)와 배터리의 저전압을 표시하는 표시램프(31)가 직렬 접속되어 있는데, 키스위치(32)는 차량의 시동이 걸려있다면 온상태이다. 전압조정기(20)는 후술하는 전류조절수단을 구동시키는 전류조절수단구동부로서의 역할을 한다.A key switch 32 and a display lamp 31 indicating low voltage of the battery are connected in series between the port L of the voltage regulator 20 and the positive terminal of the battery 40. If the vehicle is started, it is on. The voltage regulator 20 serves as a current regulation means driver for driving the current regulation means described later.
한편, 배터리(40)와 전기부하(70) 사이에는 배터리(40)의 방전전류를 감지하는 방전전류감지부와 방전전류를 제한하는 전류조절수단이 접속되는데, 전류조절수단은 배터리(40)와 전기부하(70) 사이에 일정치 이하의 전류가 흐르도록 제한하는 전류제한기(60)로 구현된다. 또한 방전전류감지부는 션트(50)로 구현되는데, 션트(50)는 배터리(40)의 방전전류를 측정하여 그에 따른 배터리(40)의 전압강하신호를 전압조정기(20)의 BD포트로 출력하고, 전압조정기(20)의 DR포트와 접속되어 전압조정기(20)의 제어를 받아 배터리 방전전류를 제한한다.On the other hand, between the battery 40 and the electrical load 70 is connected to the discharge current detection unit for detecting the discharge current of the battery 40 and the current control means for limiting the discharge current, the current control means and the battery 40 It is implemented as a current limiter 60 to limit the current below a certain value flow between the electric load 70. In addition, the discharge current detection unit is implemented by the shunt 50, the shunt 50 measures the discharge current of the battery 40 and outputs the voltage drop of the battery 40 according to the BD port of the voltage regulator 20 The battery is connected to the DR port of the voltage regulator 20 to limit the battery discharge current under the control of the voltage regulator 20.
차량주행시 발전기의 무발전 혹은 낮은 회전수에서 전기부하로부터 대전류가 요구되면 배터리로부터 과방전이 일어나는데, 그에 따른 본 발명에 따른 차량용 배터리의 과방전 방지장치의 제 1실시예의 동작을 살펴보면 다음과 같다. When a large current is required from an electric load at a generator-free or low rotational speed of a vehicle while driving, overdischarge occurs from a battery. The operation of the first embodiment of the overdischarge prevention device for a vehicle battery according to the present invention is as follows.
배터리(40)로부터 방전되는 방전전류는 션트(50)를 거쳐서 전기부하(70)로 공급되는데, 션트(50)는 방전전류에 따른 전압강하신호를 전압조정기(20)의 포트(BD)로 출력한다. 전압조정기(20)는 션트(50)로부터 출력되는 전압강하신호를 입력받으며, 그 전압강하신호가 소정시간이상 계속적으로 입력되면 전압조정기(20)는 과방전이라고 판단한다.Discharge current discharged from the battery 40 is supplied to the electrical load 70 via the shunt 50, the shunt 50 outputs a voltage drop signal corresponding to the discharge current to the port (BD) of the voltage regulator 20 do. The voltage regulator 20 receives a voltage drop signal output from the shunt 50, and when the voltage drop signal is continuously input for a predetermined time or more, the voltage regulator 20 determines that it is over-discharged.
전압조정기(20)는 과방전이라고 판단되면 사용자에게 1차과방전경보를 하게 하는데, 운전자로 하여금 액세서리(예를들어, 카 오디오)를 오프하도록 포트(L)를 로우로 하여 표시램프(31)를 온시켜 1차과방전경보를 한다.The voltage regulator 20 causes the user to make a first over-discharge alarm when it is determined that the over-discharge is determined. The display lamp 31 is set by setting the port L to low so that the driver can turn off an accessory (for example, car audio). Turn on the primary discharge alarm.
1차과방전경보후에도 션트(50)로부터 입력되는 전압강하신호가 계속적으로 지속되면 전압조정기(20)는 포트(DR)를 통하여 전류제한신호를 전류제한기(60)로 출력한다. 그리고 나서 전압조정기(20)는 포트(L)를 하이/로우로 스위칭 시킴으로서 표시램프(31)를 점멸시키는 2차과방전경보를 한다.If the voltage drop signal input from the shunt 50 continues even after the primary over-discharge alarm, the voltage regulator 20 outputs a current limit signal to the current limiter 60 through the port DR. The voltage regulator 20 then makes a secondary over-discharge alarm which causes the display lamp 31 to flash by switching the port L high / low.
전류제한기(60)는 전압조정기(20)의 포트(DR)를 통하여 전류제한신호가 출력되면 내부에 구비한 스위칭소자(예를들어, BJT 혹은 MOSFET등)를 제어하여 배터리(40)에서 방전되는 방전전류를 차량 운행에 필요한 만큼(예를 들어, 엔진의 시동유지에 필요한 만큼)의 전류량으로 제한한다.When the current limit signal is output through the port DR of the voltage regulator 20, the current limiter 60 controls the switching element (for example, BJT or MOSFET) provided therein to discharge the battery 40. The discharge current to be limited is limited to the amount of current necessary for driving the vehicle (for example, required for maintaining the engine).
한편 본 발명에 따른 제 2실시예의 구성을 살펴보면, 전술한 제 1실시예에서 전류제한수단인 전류제한기(60) 대신 릴레이(80)가 접속되고, 그 릴레이(80)는 차량의 메인제어부(90)의 포트(OP)와 접속되어 온/오프된다. 또한 전압조정기(20)는 포트(SG)를 통하여 전원차단신호를 메인제어부(90)의 포트(IP)로 출력한다. 메인제어부(90)는 전압조정기(20)의 포트(SG)로부터 전원차단신호가 출력되어 포트(IP)로 입력되면 포트(OP)를 통하여 릴레이(80)의 오프신호를 출력한다. On the other hand, looking at the configuration of the second embodiment according to the present invention, in the above-described first embodiment, instead of the current limiter 60 which is the current limiting means, a relay 80 is connected, and the relay 80 is the main control unit of the vehicle ( It is connected to the port OP of 90 and turned on / off. In addition, the voltage regulator 20 outputs a power cutoff signal to the port IP of the main controller 90 through the port SG. The main controller 90 outputs a power-off signal from the port SG of the voltage regulator 20 to the port IP, and outputs an off signal of the relay 80 through the port OP.
본 발명에 따른 제 2실시예의 동작에서 1차과방전경보까지의 동작은 제1실시예와 동일하며 그 이후의 동작은 다음과 같다.The operation from the second embodiment to the first over-discharge alarm according to the present invention is the same as the first embodiment, and the operation thereafter is as follows.
전압조정기(20)는 1차과방전경보후 션트(50)로부터 전압강하신호가 소정시간이상 계속적으로 입력되면 전원차단신호를 포트(SG)를 통하여 차량의 메인제어부(90)의 포트(IP)로 출력한다.When the voltage drop signal is continuously input from the shunt 50 after the first over-discharge alarm for more than a predetermined time, the voltage regulator 20 outputs a power cutoff signal to the port IP of the main control unit 90 of the vehicle through the port SG. do.
차량의 메인제어부(90)는 전압조정기(20)로부터 전원차단신호가 포트(IP)로 입력되면 차량의 운행 및 시동에 관계없는 액세서리부하(예를 들어, 카오디오)의 릴레이(80)를 오프시키기 위하여 포트(OP)로 해당 릴레이(80)의 오프신호를 출력한다. 그에 따라서 해당 릴레이(80)는 오프되어 배터리(40)의 과방전을 막을 수 있다. The main controller 90 of the vehicle turns off the relay 80 of an accessory load (for example, car audio) irrespective of driving and starting of the vehicle when a power cutoff signal is input from the voltage regulator 20 to the port IP. In order to output the output signal of the relay 80 to the port (OP). Accordingly, the relay 80 may be turned off to prevent over discharge of the battery 40.
또한 메인제어부(90)가 릴레이(80)를 오프시키는 대신에, 전압조정기(20)가 직접 릴레이(80)를 제어할 수도 있다. 즉, 1차과방전경보 후 션트(50)로부터 입력되는 전압강하신호가 소정시간이상 계속적으로 입력되면 전압조정기(20)는 차량의 시동 및 운행과 관계없는 부하의 릴레이(80)를 직접 제어하여 오프시킬 수 있다. Also, instead of the main controller 90 turning off the relay 80, the voltage regulator 20 may directly control the relay 80. That is, if the voltage drop signal input from the shunt 50 is continuously input for more than a predetermined time after the first over-discharge alarm, the voltage regulator 20 directly controls the relay 80 of the load which is not related to starting and running of the vehicle to be turned off. Can be.
그리하여 배터리(40)의 과방전에 의하여 차량의 전력공급이 급속하게 중단되는 것을 방지할 수 있다.Therefore, it is possible to prevent the power supply of the vehicle from being rapidly stopped by the over discharge of the battery 40.
본 발명에 따른 차량용 배터리의 과방전 방지장치에 의하면, 션트에 의하여 배터리의 방전전류를 측정하고 과방전을 감지하고, 과방전을 감지하면 배터리의 방전전류를 제한하거나 차단시킴으로서, 발전기의 무발전 혹은 저 회전수에서 큰 전기부하에 의하여 배터리가 과방전되는 것을 방지할 수 있다.According to the over-discharge prevention device for a vehicle battery according to the present invention, by measuring the discharge current of the battery by the shunt, and detects the over-discharge, if the over-discharge is detected by limiting or blocking the discharge current of the battery, The battery can be prevented from being overdischarged by a large electric load at low rotational speed.
도 1은 종래의 차량용 발전기와 전압조정기의 접속회로도이다.1 is a connection circuit diagram of a conventional vehicle generator and voltage regulator.
도 2는 본 발명에 따른 차량용 배터리의 과방전 방지장치의 연결도이다.2 is a connection diagram of the over-discharge prevention device for a vehicle battery according to the present invention.
도 3은 본 발명에 따른 차량용 배터리의 과방전 방지장치의 타 실시예의 연결도이다.3 is a connection diagram of another embodiment of the over-discharge prevention device for a vehicle battery according to the present invention.
* 도면의 주요 부분에 대한 부호의 설명 * Explanation of symbols on the main parts of the drawings
11:전기자코일 12:계자코일 11: Electric coil 12: Field coil
13:정류부 20:전압조정기13: rectifier 20: voltage regulator
31:표시램프 32:스위치31: Indicator lamp 32: Switch
40:배터리 50:션트40: battery 50: shunt
60:전류제한기 70:전기부하60: current limiter 70: electric load
80:릴레이 90:메인제어부 80: relay 90: main control unit
Claims (3)
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| Application Number | Priority Date | Filing Date | Title |
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| KR10-1998-0039020A KR100465400B1 (en) | 1998-09-21 | 1998-09-21 | Over-discharge prevention device for vehicle battery |
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| Application Number | Priority Date | Filing Date | Title |
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| KR10-1998-0039020A KR100465400B1 (en) | 1998-09-21 | 1998-09-21 | Over-discharge prevention device for vehicle battery |
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| KR20000020409A KR20000020409A (en) | 2000-04-15 |
| KR100465400B1 true KR100465400B1 (en) | 2005-04-06 |
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| KR20030009954A (en) * | 2001-07-24 | 2003-02-05 | 삼성전기주식회사 | Apparatus for managing voltage of battery |
| KR20030027225A (en) * | 2001-09-18 | 2003-04-07 | 기아자동차주식회사 | Method for controlling discharge current of a battery for vehicles |
| KR100482973B1 (en) * | 2002-12-02 | 2005-04-15 | 기아자동차주식회사 | Discharge preventing system of battery |
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