| 摘要 |
A system and method for controlling an on-board battery charger of an eco-friendly vehicle are provided. In the method, when instantaneous interruption of electric power occurs in an AC input power source, a DC-DC controller adjusts an output current instruction to be limited to the minimum charging power, and a power factor corrector (PFC) controller outputs a voltage instruction to a first capacitor (DC link capacitor) connected to an output terminal of the PFC controller to be updated to zero (0) or an actual value of the DC link capacitor. When the AC input power source is then restored, the PFC controller outputs the voltage instruction to the first capacitor to be increased to the existing voltage instruction with a predetermined slope, to smoothly perform the charging operation of the on-board battery charger without pause. |
| 主权项 |
1. A method for controlling an on-board battery charger of an eco-friendly vehicle, comprising:
determining, by a controller, whether interruption of electric power occurs in an alternating current (AC) input power source during a charging operation of the on-board battery charger; limiting, by the controller, an output current instruction for charging a high-voltage battery to a minimum charging current, when the interruption of electric power occurs in the AC input power source,; outputting, by the controller, a voltage instruction to a first capacitor connected to an output terminal of a power factor corrector (PFC) converter to be updated to 0 or an actual output voltage level of the first capacitor; restoring, by the controller, the voltage instruction to the first capacitor to the original instruction, when the AC input power source is restored,; and restoring, by the controller, the output current instruction for charging the high-voltage battery to the original charging current instruction. |
