METHOD AND SYSTEM OF OPERATING ON-BOARD CHARGER FOR ECO-FRIENDLY VEHICLE

摘要

A method and system of operating an on-board charger (OBC) for an eco-friendly vehicle are provided to improve durability and extend a lifespan of the OBC during the charging of a vehicle battery using a commercial power source. The system improves durability and extends a lifespan of the OBC including a power factor correction (PFC) part by alternately operating a first boost converter and a second boost converter of the PFC part during the charging of a battery by using a commercial power supplier (an in-cable control box (ICCB)).

主权项

1. A method of operating an on-board charger (OBC) mounted in a vehicle, comprising:
determining, by a controller, whether a power supplier connected to the OBC is a commercial power supplier configured to supply commercial alternating current power; accumulating and counting, by the controller, the number of times of charging a battery when the commercial power supplier is connected with the OBC; and alternately operating, by the controller, a plurality of boost converters configure to adjust an on-duty of an input current of the OBC based on the counted number of times of charging the battery.