The present invention relates to a charging device for an electric freight vehicle, including: a main battery; an auxiliary battery having a voltage lower than that of the main battery; an on-board charging unit that charges the main battery by receiving commercial AC power from electric vehicle supply equipment (EVSE) and converting the AC power into DC power; a battery control unit that receives a CP voltage from the on-board charging unit through a CAN communication unit, calculates an average CP voltage level, and controlling the on-board charging unit according to the average CP voltage level to charge the main battery; and a voltage converting unit that charges the auxiliary battery by converting the DC voltage of the main battery into a lower DC voltage value.
본 발명은 전기 화물차의 충전장치에 관한 것으로, 주배터리와, 상기 주배터리의 전압보다 낮은 전압의 보조배터리와, EVSE(Electric Vehicle Supply Equipment)로부터 상용 교류전원을 공급받아 직류전원으로 변환하여 주배터리를 충전하는 온보드 충전부와, 상기 온보드 충전부로부터 CP 전압을 CAN 통신부를 통해 수신하고, CP 전압 레벨 평균값을 산출하고, CP 전압 레벨 평균값에 따라 상기 온보드 충전부를 제어하여 주배터리를 충전하는 배터리 제어부와, 상기 주배터리의 직류전압을 더 낮은 직류전압값으로 변환하여 보조배터리를 충전하는 전압변환부를 포함한다.
Charging device for an electric truck
전기 화물차의 충전장치
2020-12-28
Patent
Elektronische Ressource
Koreanisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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