On board charger for electric vehicle

The present invention relates to an on-board charger for an electric vehicle, which receives AC voltage from a charging station, converts the AC voltage to DC voltage, and charges a battery of an electric vehicle. The on-board charger comprises a power control unit and converts the DC voltage suppli...

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Bibliographische Detailangaben
Hauptverfasser:	LEE CHUNG YEOL, CHA BYEONG KI, YOON TAE BONG, MA SE HYUN, KOO DUEK JIN, YUN HEUI BOG
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRICITY ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL GENERATION MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES PERFORMING OPERATIONS SYSTEMS FOR STORING ELECTRIC ENERGY TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	The present invention relates to an on-board charger for an electric vehicle, which receives AC voltage from a charging station, converts the AC voltage to DC voltage, and charges a battery of an electric vehicle. The on-board charger comprises a power control unit and converts the DC voltage supplied to the battery. The power control unit receives CP voltage of the charging station, calculates a sampling average value of the received CP voltage, calculates a CP voltage period and a counter value of a duty period of the CP voltage, and detects a noise of the AC current to control charging of the battery. The on-board charger safely protects a system from overcurrent, overvoltage, and high temperature. 본 발명은 전기자동차의 온보드 충전장치에 관한 것으로, 충전 스테이션으로부터 교류전압을 공급받아 직류전압으로 변환하여 전기자동차의 배터리를 충전하는 온보드 충전장치에 있어서, 상기 온보드 충전장치는 전력 제어부를 포함하여 상기 배터리에 공급되는 직류전압을 변환하며, 상기 전력 제어부는, 상기 충전 스테이션의 CP전압을 수신하고, 수신된 CP전압의 샘플링 평균값을 산출하고, CP전압 주기 및 CP전압의 듀티 주기의 카운터 값을 산출하여, 교류전압의 노이즈를 검출하여, 상기 배터리의 충전여부를 제어할 수 있다.