KR20010059086A - Battery charge device and method for electric vehicle - Google Patents

Battery charge device and method for electric vehicle Download PDF

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Publication number
KR20010059086A
KR20010059086A KR1019990066466A KR19990066466A KR20010059086A KR 20010059086 A KR20010059086 A KR 20010059086A KR 1019990066466 A KR1019990066466 A KR 1019990066466A KR 19990066466 A KR19990066466 A KR 19990066466A KR 20010059086 A KR20010059086 A KR 20010059086A
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South Korea
Prior art keywords
power
electric vehicle
temperature
charging
power charging
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KR1019990066466A
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Korean (ko)
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박종진
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이계안
현대자동차주식회사
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Priority to KR1019990066466A priority Critical patent/KR20010059086A/en
Publication of KR20010059086A publication Critical patent/KR20010059086A/en

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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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/04—Cutting off the power supply under fault conditions
    • 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
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/18—Cables specially adapted for charging electric vehicles
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/10—Vehicle control parameters
    • B60L2240/36—Temperature of vehicle components or parts
    • 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
    • B60L2250/00—Driver interactions
    • B60L2250/10—Driver interactions by alarm
    • 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
    • B60L2250/00—Driver interactions
    • B60L2250/16—Driver interactions by display
    • 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
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

PURPOSE: A power charging device and a method of an electric vehicle are provided to assure a stable power charging operation by adding a power charging stabilizing device to a power cable without adding a separate stabilizing device to a charging circuit mounted on the electric vehicle. CONSTITUTION: A temperature sensor(240) is positioned on a plug(230) connected to a porter(310) of the electric vehicle(300) to detect temperature. A controller outputs a power charging breaker signal if the temperature detected by the temperature sensor(240) is higher than a predetermined setting value. A power breaker unit(260) breaks the power supply by the power charging breaker signal output from the controller(250), and lightens an alarm lamp.

Description

전기 자동차의 전원 충전 장치 및 그 방법{BATTERY CHARGE DEVICE AND METHOD FOR ELECTRIC VEHICLE}Power charging device for electric vehicle and its method {BATTERY CHARGE DEVICE AND METHOD FOR ELECTRIC VEHICLE}

본 발명은 전원 충전장치에 관한 것으로, 더욱 상세하게는 전기 자동차의 주동력원으로 사용되는 배터리 충전시 안정화 장치 및 방법에 관한 것이다.The present invention relates to a power charging device, and more particularly to a stabilizing device and method for charging a battery used as a main power source of an electric vehicle.

예컨데, 전기 자동차는 추진 방식에 따라 순전기 자동차와 하이브리드 전기 자동차로 나뉘어진다.For example, electric vehicles are divided into pure electric vehicles and hybrid electric vehicles, depending on the propulsion method.

순전기 자동차는 배터리에 저장된 에너지만으로 동력을 얻어 주행하는 자동차이며, 하이브리드 전기 자동차는 내연기관 등 다른 동력원과 더불어 추진 동력을 얻는 자동차이다.A pure electric vehicle is a vehicle driven by driving only energy stored in a battery, and a hybrid electric vehicle is a vehicle that obtains propulsion power together with other power sources such as an internal combustion engine.

상기 하이브리드 전기 자동차는 다시 시리즈 하이브리드 방식과 패러렐 하이브리드 방식으로 나뉘어진다.The hybrid electric vehicle is further divided into a series hybrid system and a parallel hybrid system.

시리즈 방식은 엔진에서 발전기를 구동해 전기적으로 에너지를 만들고 그 힘으로 모터가 바퀴를 구동시키는 방식으로 엔진 발전기의 충전 역할만을 담당한다.In the series method, the engine generates electric energy by driving the generator, and the motor drives the wheels with the power to play only the charge of the engine generator.

패러렐 방식은 엔진만으로 독자적으로 바퀴를 구동시킬 수 있는 방식이다.The parallel method is a method that can independently drive the wheels only by the engine.

즉, 엔진과 모터가 상황에 따라 바꾸어 가며 바퀴를 굴리는 방식을 말한다.In other words, the engine and the motor to change the wheel depending on the situation.

상기 패러렐 방식은 시리즈 방식처럼 엔진 동력이 배터리를 충전시키면서 주행하는 것이 가능하다.In the parallel method, the engine power can run while charging the battery as in the series method.

따라서, 상기 전기 자동차의 구성을 살펴보면 크게 모터(전동기), 컨트롤러, 인버터, 충전기, DC/DC 컨버터, 배터리 등으로 나누어 구성되어 있다.Therefore, the configuration of the electric vehicle is divided into a motor (motor), a controller, an inverter, a charger, a DC / DC converter, a battery, and the like.

상기한 전기 자동차의 구성중, 배터리는 모터에 전력을 공급하는 역할을 하는 주배터리와 기존 휘발유차와 같이 전기장치에 전력을 공급하는 역할을 하는 보조 배터리로 나누어진다.In the configuration of the electric vehicle, the battery is divided into a main battery for supplying power to the motor and a secondary battery for supplying power to the electric device, such as a conventional gasoline.

상기한 주배터리를 충전함에 있어서, 종래에는 일측이 전기 자동차의 포터와 연결되는 플러그와 타측이 전원 충전소 콘센트와 연결되는 플러그와, 상기 양쪽 플러그 사이를 연결하는 전원 케이블로 이루어져 있다.In charging the main battery, conventionally, one side is composed of a plug that is connected to the porter of the electric vehicle, the other side is a plug that is connected to the power charging station outlet, and a power cable for connecting between the two plugs.

그러나, 상기한 종래의 전원 케이블에 의해 전기 자동차의 배터리 충전시, 충전 플러그와 포터 사이의 접촉이 불량할 경우, 상기 플러그 또는 포토의 온도 상승에 의한 열화 발생으로 전원부 및 충전기에 손상 및 화재 발생 또는 단선, 단락 등이 발생하는 문제점을 내포하고 있다.However, when charging the battery of the electric vehicle by the above-described conventional power cable, if the contact between the charging plug and the porter is poor, damage to the power supply unit and the charger may occur due to deterioration caused by the temperature rise of the plug or photo or There is a problem that disconnection, short circuit, etc. occur.

따라서, 본 발명의 목적은 상기한 문제점을 해결하기 위한 것으로, 전기 자동차에 탐재된 충전 회로에 별도의 안정화 장치 부가없이, 전원 케이블에 전원 충전 안정화 장치를 부가하여 전원 충전시 안정된 전원 충전을 수행할 수 있는 전기 자동차의 배터리 충전장치 및 방법을 제공하기 위한 것이다.Accordingly, an object of the present invention is to solve the above problems, without adding a separate stabilization device to the charging circuit interrogated in the electric vehicle, to add a power charging stabilization device to the power cable to perform a stable power charging during power charging. To provide a battery charging apparatus and method for an electric vehicle.

도 1은 본 발명에 적용되는 전기 자동차의 전원 충전장치 사용 계략도,1 is a schematic view of using a power charging device for an electric vehicle according to the present invention,

도 2는 본 발명에 따른 전기 자동차의 전원 충전장치 구성 블록도,2 is a block diagram of a power charging device for an electric vehicle according to the present invention;

도 3은 본 발명에 따른 전기 자동차의 전원 충전 방법 동작 순서도이다.3 is a flowchart illustrating a method of charging power of an electric vehicle according to the present invention.

이를 실현하기 위한 본 발명은, 온도 센서와; 상기 온도 센서에서 검출된 온도가 소정의 설정값 이상이면 전원 충전 차단 신호를 출력하는 제어수단과; 상기 제어수단에서 출력되는 전원 충전 차단 신호에 의해 전원 공급을 차단하고 경고 램프를 점등시키는 전원 차단 수단으로 구비되는 것을 특징으로 한다.The present invention for realizing this, and a temperature sensor; Control means for outputting a power charging shutoff signal when the temperature detected by the temperature sensor is equal to or greater than a predetermined set value; It is characterized in that it is provided as a power cut-off means for cutting off the power supply by the power charging cut-off signal output from the control means and turns on the warning lamp.

이를 실현하기 위한 다른 본 발명은, 전원이 인가되면 온도를 검출하여, 상기 검출된 온도를 전압으로 변환한 다음, 상기 변환된 온도 값이 소정의 온도 기준 값 이상인가를 판단하는 단계와; 상기 단계에서 변환된 온도 값이 소정의 온도 기준 값 이상이라고 판단되면, 전원 공급 차단 신호를 출력하는 단계로 이루어지는 것을 특징으로 한다.According to another aspect of the present invention, there is provided a method including detecting a temperature when a power is applied, converting the detected temperature into a voltage, and then determining whether the converted temperature value is greater than or equal to a predetermined temperature reference value; If it is determined that the temperature value converted in the step is equal to or greater than a predetermined temperature reference value, characterized in that the step of outputting a power supply cutoff signal.

이하, 상기의 목적을 실현할 수 있는 본 발명의 바람직한 실시예를 첨부한 도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can realize the above object will be described in detail.

도 1은 본 발명에 적용되는 전기 자동차의 전원 충전장치 사용 계락도로서, 전원 충전소(100)에서 공급되는 전원을 전기 자동차(300)에 충전할 수 있도록, 양측에 플러그(210,220)를 구비하고, 상기 전기 자동차(300)의 포토(310)와 결합되는 플러그(220)에 온도 센서(240)를 구비한 전원 충전장치(200)로 이루어져 있다.1 is a plan view of using a power charging device for an electric vehicle according to the present invention, and the plugs 210 and 220 are provided at both sides to charge the electric vehicle 300 with the power supplied from the power charging station 100. The power charging device 200 having a temperature sensor 240 on a plug 220 coupled to the photo 310 of the electric vehicle 300 is provided.

미설명 부호(220)는 전원 케이블이다.Reference numeral 220 is a power cable.

도 2는 본 발명에 따른 전기 자동차의 전원 충전장치 구성 블록도로서, 상기 전기 자동차(300)의 포터(310)와 결합되는 플러그(230)에 위치하여 온도를 검출하는 온도 센서(240)와, 상기 온도 센서(240)에서 검출된 온도를 전압(V1)으로 변환한 후, 소정의 전압값(K)과 비교 판단하여, 상기 온도 전압값(V1)이 소정의 전압값(K)보다 크면, 전원 공급 차단 신호를 출력하는 제어수단(250)과, 상기 제어수단(250)에서 출력되는 신호에 의해 전원 공급을 차단하고, 경고 램프를 점등시키는 전원 차단수단(260)으로 이루어져 있다.2 is a block diagram illustrating a configuration of a power charging device for an electric vehicle according to the present invention, a temperature sensor 240 positioned at a plug 230 coupled to a porter 310 of the electric vehicle 300 and detecting a temperature; After converting the temperature detected by the temperature sensor 240 to the voltage (V1), and compared with a predetermined voltage value (K), if the temperature voltage value (V1) is greater than the predetermined voltage value (K), Control means 250 for outputting a power supply cutoff signal, and a power cut-off means 260 for cutting off the power supply by the signal output from the control means 250, and turns on the warning lamp.

상기한 구성으로 이루어진 전기 자동차의 전원 충전 장치의 제어 방법을 첨부한 도 3을 참조하여 설명한다.A control method of a power charging device for an electric vehicle having the above configuration will be described with reference to FIG. 3.

전원 충전소(100)에서 공급되는 전원을 전기 자동차(300)에 충전하기 위해 전원 충전장치(200) 양측에 구비된 플러그(220,230)를 전원 충전소(100)와 전기 자동차(300)에 구비된 포터(310)에 결합하면, 상기 전원 충전소(100)에서 공급되는 전원은 상기 전원 충전장치(200)를 통하여 전기 자동차(200)에 충전되어진다.In order to charge the electric vehicle 300 with the power supplied from the power charging station 100, the plugs 220 and 230 provided at both sides of the power charging device 200 are connected to the power charging station 100 and the electric vehicle 300. When coupled to 310, the power supplied from the power charging station 100 is charged to the electric vehicle 200 through the power charging device 200.

이 때, 제어수단(250)은 상기 전기 자동차(200)에 구비된 포터(310)와 결합되는 플러그(230)에 위치한 온도 센서(240)에 소정의 신호를 출력한다(S100).At this time, the control means 250 outputs a predetermined signal to the temperature sensor 240 located in the plug 230 coupled to the porter 310 provided in the electric vehicle 200 (S100).

이에, 온도 센서(240)는 상기 플러그(230)의 온도를 검출하여 제어수단(250)으로 전송한다.Thus, the temperature sensor 240 detects the temperature of the plug 230 and transmits it to the control means 250.

제어수단(250)은 상기 온도 센서(240)에서 검출되는 온도를 입력받아 전원 값(V1)으로 변환하고(S110), 상기 변환된 전압값(V1)을 기 설정된 소정의 기준 전압값(K)과 비교 판단한다(S120).The control means 250 receives the temperature detected by the temperature sensor 240 and converts it into a power value V1 (S110), and converts the converted voltage value V1 into a predetermined reference voltage value K. Compared to and determined (S120).

상기에서, 변환된 온도 값(V1)이 기 설정된 소정의 기준 전압값(K)보다 크면, 제어수단(250)은 전기 자동차(300)에 구비된 포터(310)와 결합되는 플러그(230)사이에 접촉 불량에 의한 열화가 발생한 것으로 판단하여, 전원 공급 차단 신호를 출력한다(S130).In the above, when the converted temperature value V1 is larger than the predetermined reference voltage value K, the control means 250 is between the plug 230 coupled with the porter 310 provided in the electric vehicle 300. It is determined that deterioration due to a poor contact occurs, and outputs a power supply cutoff signal (S130).

전원 차단수단(260)은 상기 제어수단(250)에서 출력되는 전원 공급 차단 신호에 동기되어 도면에 도시되지 않은 전자식 차단기를 오프 시키고, 도면에 도시되지 않은 경고 램프를 점등시킨다.The power cut-off means 260 turns off the electronic breaker (not shown) in synchronization with the power supply cut-off signal output from the control means 250 and turns on a warning lamp not shown in the figure.

이로써, 플러그와 포터의 결합 불량에 따른 열화에 의해 충전장치의 손상 및 화재 발생을 미연에 방지할 수 있다.As a result, damage to the charging device and generation of fire may be prevented due to deterioration due to a poor coupling of the plug and the porter.

이상에서와 같이 본 발명의 실시예에 따른 전기 자동차의 전원 충전장치 및 그 방법은, 전기 자동차에 탐재된 충전 회로에 별도의 안정화 장치 부가없이, 전원 케이블에 전원 충전 안정화 장치를 부가하여 전원 충전시 안정된 전원 충전을 수행할 수 있어, 플러그와 포터의 결합 불량에 따른 열화에 의해 충전장치의 손상 및 화재 발생을 미연에 방지할 수 있다.As described above, the power charging device for an electric vehicle and the method thereof according to the embodiment of the present invention, when the power supply charging by adding a power charging stabilization device to the power cable without the addition of a separate stabilization device to the charging circuit interrogated in the electric vehicle. It is possible to perform a stable power charging, it is possible to prevent damage to the charging device and the occurrence of fire by deterioration due to the poor coupling of the plug and porter.

Claims (2)

온도 센서와; 상기 온도 센서에서 검출된 온도가 소정의 설정값 이상이면 전원 충전 차단 신호를 출력하는 제어수단과; 상기 제어수단에서 출력되는 전원 충전 차단 신호에 의해 전원 공급을 차단하고 경고 램프를 점등시키는 전원 차단 수단으로 구비되는 것을 특징으로 하는 전기 자동차의 전원 충전장치.A temperature sensor; Control means for outputting a power charging shutoff signal when the temperature detected by the temperature sensor is equal to or greater than a predetermined set value; The power charging device of the electric vehicle, characterized in that the power supply is cut off by the power charging cut-off signal output from the control means and the power off means for lighting the warning lamp. 전원이 인가되면 온도를 검출하고, 상기 검출된 온도를 전압으로 변환한 다음, 상기 변환된 온도 값이 소정의 온도 기준 값 이상인가를 판단하는 단계와; 상기 단계에서 변환된 온도 값이 소정의 온도 기준 값 이상이라고 판단되면, 전원 공급 차단 신호를 출력하는 단계로 이루어지는 것을 특징으로 하는 전기 자동차의 전원 충전 방법.Detecting a temperature when power is applied, converting the detected temperature into a voltage, and then determining whether the converted temperature value is greater than or equal to a predetermined temperature reference value; And if it is determined that the converted temperature value is equal to or greater than a predetermined temperature reference value, outputting a power supply cutoff signal.
KR1019990066466A 1999-12-30 1999-12-30 Battery charge device and method for electric vehicle KR20010059086A (en)

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