CONVERTER APPARATUS AND METHOD OF ELECTRIC VEHICLE

摘要

An integrated converter and method are provided that combine an onboard charger and a low voltage direct current converter. The integrated improves the charging efficiency of the battery of a vehicle and supplies the high density power to an electronic device load. The charging efficiency of the high voltage battery and electricity transmitting efficiency to the low voltage converter is improved using the integrated converter. Furthermore, the low voltage converter receives high density power since the low voltage converter is input with a substantially stable voltage from the integrated converter.

主权项

1. A converter apparatus of a vehicle comprising:
a power converting module configured to convert an input alternating current (AC) voltage into a first direct current (DC) voltage and transmit the first DC voltage to a low voltage converter when the vehicle is charged; and a bidirectional buck-boost module configured to increase the first DC voltage to a second DC voltage and transmit the second DC voltage to a high voltage battery when the vehicle is charged, and reduce a third DC voltage output from the high voltage battery and transmit the reduced third DC voltage to the low voltage converter when the vehicle is operated.