KR100350992B1 - Automatic charge circuit of electric vehicle - Google Patents

Automatic charge circuit of electric vehicle Download PDF

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Publication number
KR100350992B1
KR100350992B1 KR1019970016259A KR19970016259A KR100350992B1 KR 100350992 B1 KR100350992 B1 KR 100350992B1 KR 1019970016259 A KR1019970016259 A KR 1019970016259A KR 19970016259 A KR19970016259 A KR 19970016259A KR 100350992 B1 KR100350992 B1 KR 100350992B1
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South Korea
Prior art keywords
output terminal
key input
electric vehicle
converter
voltage
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KR1019970016259A
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Korean (ko)
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KR19980078667A (en
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정유석
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기아자동차주식회사
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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
    • H02J7/16—Regulation of the charging current or voltage by variation of field
    • H02J7/163—Regulation of the charging current or voltage by variation of field with special means for initiating or limiting the excitation current
    • 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
    • H02J7/16—Regulation of the charging current or voltage by variation of field
    • H02J7/18—Regulation of the charging current or voltage by variation of field due to variation of ohmic resistance in field circuit, using resistance switching in or out of circuit step by step
    • 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
    • H02J7/16—Regulation of the charging current or voltage by variation of field
    • H02J7/22—Regulation of the charging current or voltage by variation of field due to variation of make-to-break ratio of intermittently-operating contacts, e.g. using Tirrill regulator

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

PURPOSE: An automatic charge circuit of an electric vehicle is provided to protect a battery by charging a driving battery with rising current of a photo coupler when starting the vehicle. CONSTITUTION: A key input portion(3) is connected to an output terminal of the DC-DC converter. A key is inserted into the key input portion(3) in order to perform a switching operation. A control portion(2) is connected to an output terminal of the key input portion(3) in order to determine an ignition signal of a vehicle. A photo coupler(P) is connected to an output terminal of the control portion(2) and the output terminal of the DC-DC converter. A plurality of electronic contactors(1R,2R) are connected to an output terminal of the photo coupler(P), the DC-DC converter, and the key input portion(3). A battery(B) is connected to the electronic contactors(1R,2R) and a charge relay(RY).

Description

전기자동차의 자동충전회로Automatic charging circuit of electric vehicle

본 발명은 "전기자동차"의 자동충전회로에 관한 것으로서 더 자세하게는 콘덴서의 충전시 포토커플러 소자로부터 자동으로 전자접촉되어 초기 충전하는 전기자동차를 마련하고자 하는 전기자동차의 자동충전회로에 관한 것이다.The present invention relates to an automatic charging circuit of an "electric vehicle", and more particularly, to an automatic charging circuit of an electric vehicle, which is intended to provide an electric vehicle which is automatically electronically contacted from a photocoupler element during charging of a capacitor.

도 1은 종래의 실시에에 따른 전기차용 자동충전기의 회로 구성도이다.1 is a circuit diagram of an electric vehicle charger according to the related art.

종래의 기술은 광차에 사용되는 축전기의 자동충전기에 관한 것으로서 도 1에서 보는 바와 같이 3상 60Hz(100∼270VAC)를 주전원으로 하는 정류회로에 있어서, 실리컨 정류소자(SCR4)의 캐소드에 저항(R1)과 컨덴서(C1)를 병렬로 연결하여 프러스라인에 접속하고 실리컨 정류소자(SCR4)의 애노드를 저항(R3)(R12)에 접속하여 거의 직류와 같은 전압을 공급하여 줄수 있는 "직류전압공급회로"를 설치한고 트랜지스터(Q3)의 에미터측을 제너다이오드(D9)를 통해서 가변저항(R14)에 연결한 후 저항(R13)(R14)(R15)을 직렬로 연결하고 그 양단을 플러스라인과마이너스단자에 접속시키므로서 저항(R13)(R14)(R15)의 분압비에 따라 충전전압을 일정하게 유지하는 정전압회로를 정류회로에 연결구성하고 있다.The prior art relates to an automatic charger for a capacitor used in a light car, and as shown in FIG. 1, in a rectifying circuit having a three-phase 60 Hz (100 to 270 VAC) as a main power source, a resistance of the cathode of the silicon rectifying element SCR4 DC voltage can be supplied by connecting R1) and capacitor C1 in parallel to the prus line, and connecting the anode of the silicon rectifier element SCR4 to the resistor R3 (R12) to supply a voltage such as a direct current. Supply circuit ", and the emitter side of transistor Q3 is connected to variable resistor R14 through zener diode D9, and then resistors R13, R14 and R15 are connected in series, and both ends thereof are plus lines. By connecting to the negative terminal, a constant voltage circuit which maintains the charging voltage constant according to the divided voltage ratio of the resistors R13, R14, and R15 is connected to the rectifier circuit.

변류기는 3상 입력전압의 R상 또는 T상의 선로상에 관통형으로 부착해서 선로에 흐르는 전류를 감지하여 정류기 제어회로의 단자를 통해 브리지 정류회로로 인가되고 브릿지정류회로에서 정류된 전압은 저항과가변저항 그리고 콘덴서로 구성된 회로에서 리플이 제거되어 다이오드를 거쳐 실리컨 정류소자의 게이트에 인가되어 실리컨 정류소자를 동작시키면 실리컨 정류소자의 출력전압으로 진공 릴레이는 개방 상태에서 폐쇠상태로 되어 정류기 제어회로는 동작하지 않게 되고 표시들이 점등되어 과전류된 상태를 알려주게 된다.The current transformer is attached to the R-phase or T-phase line of the 3-phase input voltage through the line to sense the current flowing through the line, and is applied to the bridge rectifier circuit through the terminal of the rectifier control circuit. When the ripple is removed from the circuit composed of the variable resistor and the condenser and applied to the gate of the silicon rectifier element through a diode to operate the silicon rectifier element, the output voltage of the silicon rectifier element turns the vacuum relay from the open state to the closed state. It will not operate and the indicators will light to indicate the overcurrent condition.

또한 실리컨 정류소자(SCR1)(SCR2)(SCR3)중 어느 것 하나가 제일 먼저 통전하여 정류전압이 플러스단자에 직렬 연결된 초크코일을 통하여 밧데리 보다 리플전압을 공급하므로서 밧데리에 전원이 충전되는 것이다.In addition, any one of the silicon rectifier elements SCR1, SCR2, and SCR3 is first energized so that the power is charged to the battery by supplying a ripple voltage rather than a battery through the choke coil in which the rectified voltage is connected in series with the positive terminal.

그러나 이와 같은 종래의 기술은 자동차에 사용될 경우 부품의 개수로 단가를 상승시키게 되며 직접 직류공급회로로부터 충전되도록 하여 상승전압에 의한 축전지를 최대한 보호할 수 없는 문제점을 기지고 있다.However, such a conventional technology increases the unit cost by the number of parts when used in an automobile, and has a problem in that it is not possible to protect the battery due to the rising voltage to the maximum by being charged directly from the DC supply circuit.

본 발명은 이와 같은 종래의 제반 문제점을 해결하기 위기 위해 안출한 것으로서 그 목적은 콘덴서의 충전시 "포토커플러" 소자로부터 자동으로 전자접촉되어 초기 충전하는 전기자동차를 마련하고자 하는 데 있다.The present invention has been made in order to solve such a conventional problem, the object of the present invention is to provide an electric vehicle that is initially in charge by the electronic contact automatically from the "photocoupler" element when charging the capacitor.

상기의 목적을 달성하기 위한 본 발명의 구성은 동력회전하는 모터의 출력전압을 "인버터"에 의해 직류 성분의 전압을 교류성분으로 변환하여 직류 성분을 변압하는 "DC-DC컨버터를 통해 전원이 공급되는 전기자동차에 있어서, 상기 "DC-DC추력단"에 연결되어 차량의 시동을 걸기 위해 키를 입력하는 "키입력부"와,상기 키입력부의 출력단에 연결되어 치량 시동신호를 판단하는 "제어부"와, 상기 제어부의 출력단에 연결되며 DC-DC 컨버터 출력단에 연결되어 동작하는 "포토커플러"와,상기 포토커플러소자의 출력단에 연결되며 DC-DC컨버터,키입력부에 연결되어 입력 전류에 의해 동작하는 복수개의 '전자접촉기',충전릴레이와 상기 전자접촉기,충전릴레이의 추력단에 연결되어 충전하는 '구동용 축전지'를 포함하는 것을 특징으로 한다.The configuration of the present invention for achieving the above object is a power supply is supplied through a "DC-DC converter for converting the DC component by converting the voltage of the DC component into an AC component by the" inverter "of the output voltage of the power rotating motor In the electric vehicle, the "DC-DC thrust stage" is connected to the "key input unit" for inputting a key to start the vehicle, and the "control unit" is connected to the output terminal of the key input unit to determine the tooth start signal And a "photocoupler" connected to an output terminal of the controller and connected to an output terminal of the DC-DC converter, and connected to an output terminal of the photocoupler element, connected to a DC-DC converter, a key input unit, and operated by an input current. A plurality of 'contactor', characterized in that it comprises a charge relay and the 'drive storage battery' connected to the thrust end of the magnetic contactor, the charge relay.

도 1은 종래의 실시에에 따른 전기차용 자동충전기의 회로 구성도이다.1 is a circuit diagram of an electric vehicle charger according to the related art.

도 2는 본 발명의 실시에에 따른 전기자동차의 자동충전회로의 회로 구성도이다.2 is a circuit diagram of an automatic charging circuit of an electric vehicle according to an embodiment of the present invention.

-도면의 주요부분에 대한 부호설명-Code descriptions for the main parts of the drawings

1;인버터 2;제어부1; Inverter 2; Controller

3;키 입력부 7:리세트스위치3; key input 7: reset switch

P;포토커플러 B;구동용 축전지P; photocoupler B; driving battery

RY;충전릴레이 1R,2R:전자 접촉기RY; Charge relay 1R, 2R: Electronic contactor

SCR1∼SCR5;정류소자 R1∼R22;저항SCR1 to SCR5; rectifier elements R1 to R22; resistance

D1∼D10;다이오드 M;모터D1-D10; diode M; motor

이하,첨부된 도면에 의해 본 발명의 기술적 구성을 상세히 설명하면 다음과 같다.Hereinafter, the technical configuration of the present invention by the accompanying drawings in detail.

도 2는 본 발명의 실시에에 따른 전기자동차의 자동충전회로의 회로 구성도이다.2 is a circuit diagram of an automatic charging circuit of an electric vehicle according to an embodiment of the present invention.

본 발명은 콘덴서의 충전시 자동으로 전자접촉되어 초기 충전되도록 하는 전기자동차에 있어서 도 2에서 보는 바와 같이 동력회전하는 모터(M)의 출력전압을 "인버터"(1)에 의해 직류 성분의 전압을 교류성분으로 변환하여 직류 성분을 변압하는 "DC-DC컨버터"와, 상기 DC-DC출력단에 연결하여 스위칭 동작하는 "키입력부(3)"와,상기 키입력부(3)의 출력단을 입력단에 연결하는 "제어부"(2)와,상기 제어부(2)의 출력단에 연결되며 DC-DC컨버터 출력단에 연결하는 "포토커플러"(P)와,상기 포토커플러(P)의 출력단에 연결되며 DC-DC컨버터,키입력부(3)에 연결되어 입력 전류에 의해 동작하는 복수개의 제 "1전자접촉기(1R)", 제 2전자접촉기(2R)", "충전릴레이(RY)"와, 상기 제 1전자접촉기(1R)의 스위치단과 충전릴레이(RY)의 스위치단에 충전 저항을 연결하고 상기 충전저항의 입력단에는 제 1전자 접촉기(1R)의 출력전압이 충전되도록 양극단자에 연결한 "구동용 축전지"(B)를 연결구성하고 있다.According to the present invention, the voltage of the DC component is determined by the "inverter" (1) as the output voltage of the motor (M) that rotates in power in an electric vehicle that is automatically in electronic contact and initial charging when the capacitor is charged. A "DC-DC converter" for transforming a DC component by converting it into an AC component, a "key input unit 3" connected to the DC-DC output terminal for switching operation, and an output terminal of the key input unit 3 connected to the input terminal. The "control unit" (2), the "photocoupler" (P) connected to the output terminal of the control unit 2 and the DC-DC converter output terminal, and is connected to the output terminal of the photo coupler (P) DC-DC A plurality of first " first magnetic contactors 1R ", second magnetic contactors 2R ", " charge relays RY ", connected to the converter and the key input section 3, and operated by an input current; Connect the charging resistor to the switch terminal of the contactor 1R and the switch terminal of the charging relay RY, and Ryeokdan has to constitute a first electronic output voltage of the contactor (1R) connected to a positive terminal connected to be charged to "driving battery for" (B).

이와 같이 구성된 본 발명의 작용효과를 상세히 설명하면 다음과 같다.Referring to the effects of the present invention configured as described above in detail.

본 발명은 도 2에서 보는 바와 같이 자동으로 전자접촉되어 초기에 충전되는 전기 자동차에 관한 것으로서, 운전자가 전기자동차의 시동을 걸기 위해 키 입력부(3)의 키 를 온하여 돌리게 되면 충전릴레이(RY)와 제 2전자 접촉기(2R)가 동작하여 인버터(1)의 입력단의 모터(M) 구동으로부터 전압이 상승하게 되는 것이다.The present invention relates to an electric vehicle that is automatically charged and initially charged as shown in Figure 2, when the driver turns on the key of the key input unit 3 to start the electric vehicle charging relay (RY) And the second electromagnetic contactor 2R operate to increase the voltage from driving the motor M at the input terminal of the inverter 1.

이때 제어부(2)는 키 입력부(3)의 동작으로 부터 "인버터(1)"와 "DC-DC컨버터"로부터 인가되는 전원의 상승 전압을 판단하게 되는 것이다.At this time, the controller 2 determines the rising voltage of the power applied from the "inverter 1" and the "DC-DC converter" from the operation of the key input unit 3.

제어부(2)의 출력 상승전압으로 포토커플러(P)는 입력전류도 점차적으로 상승하게 되는 것이다.The input current of the photocoupler P gradually increases due to the output rising voltage of the controller 2.

여기서 포토커플러(P)의 저항값을 임계전압/임계전류로 설정하며 시동후 처음에는 전압이 낮아지므로 포토커플러(P)가 작동하지 않아 계속충전이 되다가 전압이 점점증가하여 임계 전압이 되면 포토커플러(P)의 입력 전류가 임계값에 도달하므로 포토커플러(P)가 작동하여 제 1전자접촉기(1R)의 동작으로 충전저항 및 구동용 축전지(B)로 전압을 인가하여 "구동용 축전지"(B)가 자동으로 초기충전되는 것이다.Here, the resistance value of the photocoupler (P) is set as the threshold voltage / critical current, and the voltage decreases at the first time after starting, so that the photocoupler (P) does not work and continues to charge, and when the voltage gradually increases and becomes the threshold voltage, the photocoupler Since the input current of (P) reaches a threshold value, the photocoupler (P) operates to apply a voltage to the charging resistor and the driving battery (B) by the operation of the first magnetic contactor (1R), thereby driving the "driving battery" ( B) is automatically charged early.

이와 같이 작용하는 본 발명은 전기자동차의 시동시 "포토커플러"의 상승 전류로부터 "구동용 축전지"에 전압이 충전되도록 하여 시동시 "인버터"를 통해 직접 "축전지"에 전압이 인가되지 않도록 하여 "축전지"를 보호하며 차량제어부의 전압을 감지하는 번거러움없이 자동으로 임계전압 이상이 되면 "전자접촉기"가 구동하는 효과를 갖는 것이다.The present invention, which acts as described above, charges the voltage of the “drive battery” from the rising current of the “photocoupler” when starting the electric vehicle so that the voltage is not directly applied to the “battery” through the “inverter” at start-up. Battery "and protects the voltage of the vehicle control unit without the hassle of the threshold voltage automatically when the" contactor "has the effect of driving.

Claims (1)

동력회전하는 모터의 출력전압을 인버터에 의해 직류 성분의 전압을 교류성분으로 변환하여 직류 성분을 변압하는 DC-DC컨버터를 통해 전원이 공급되는 전기자동차에 있어서, 상기 DC-DC출력단에 연결되어 차량의 시동을 걸기 위해 키를 입력하는 키입력부(3)와,상기 키입력부(3)의 출력단에 연결되어 치량 시동신호를 판단하는 제어부(2)와,상기 제어부(2)의 출력단에 연결되며 DC-DC컨버터 출력단에 연결되어 동작하는 포토커플러(P)와,상기 포토커플러(P)의 출력단에 연결되며 DC-DC컨버터,키입력부에 연결되어 입력 전류에 의해 동작하는 복수개의 전자접촉기(1R)(2R),충전릴레이(RY)와 상기 전자접촉기(1R)(2R),충전릴레이(RY)의 추력단에 연결되어 충전하는 구동용 축전지(B)를 포함하는 것을 특징으로 하는 전기자동차의 자동충전회로.In an electric vehicle in which power is supplied through a DC-DC converter that converts a DC component voltage into an AC component by an inverter and converts a DC component into an AC component, the vehicle is connected to the DC-DC output terminal. A key input unit 3 for inputting a key to start the control unit, a control unit 2 connected to an output terminal of the key input unit 3 and determining a start value of a tooth, and a control unit 2 connected to an output terminal of the control unit 2 A photocoupler (P) connected to an output terminal of the DC converter and a plurality of magnetic contactors (1R) connected to an output terminal of the photocoupler (P) and connected to a DC-DC converter and a key input unit and operated by an input current (2R), the charging relay (RY) and the magnetic contactor (1R) (2R), the driving storage battery (B) which is connected to the thrust end of the charging relay (RY) for charging Charging circuit.
KR1019970016259A 1997-04-29 1997-04-29 Automatic charge circuit of electric vehicle KR100350992B1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR850005466U (en) * 1983-12-02 1985-08-10 김태균 Safety connection device for battery storage
JPH01274624A (en) * 1988-04-25 1989-11-02 Matsushita Electric Works Ltd Recharger
KR950025996U (en) * 1994-02-18 1995-09-18 Digital Battery Charging System
KR960016959U (en) * 1994-11-10 1996-06-17 만도기계주식회사 Starter for electric vehicles
KR970018900A (en) * 1995-09-19 1997-04-30 정몽원 Output control circuit of generator for hybrid vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR850005466U (en) * 1983-12-02 1985-08-10 김태균 Safety connection device for battery storage
JPH01274624A (en) * 1988-04-25 1989-11-02 Matsushita Electric Works Ltd Recharger
KR950025996U (en) * 1994-02-18 1995-09-18 Digital Battery Charging System
KR960016959U (en) * 1994-11-10 1996-06-17 만도기계주식회사 Starter for electric vehicles
KR970018900A (en) * 1995-09-19 1997-04-30 정몽원 Output control circuit of generator for hybrid vehicle

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