Integrated module of on-board charger and inverter and control method thereof
First Claim
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1. An integrated module of an on-board charger (OBC) and an inverter, the integrated module comprising:
- an OBC primary side circuit and a plurality of transformers converting, when 3-phase alternating current (AC) voltages are received from a fuel station, each of the 3-phase AC voltages in form and level and transmitting each of the converted voltages into a secondary side;
an inverter switch turned off in a charge mode in which a high capacity vehicle battery is charged, to rectify an output voltage of the secondary side of each of the plurality of transformers by a body diode which is included in each switching element for an inverting function; and
a plurality of first switches provided between a plurality of nodes of the inverter switch receiving an output of the secondary side of each of the plurality of transformers and the output of the secondary side of each of the plurality of transformers, the plurality of first switches controlled to be closed in the charge mode and controlled to be opened in an operation mode while a vehicle travels.
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Abstract
An integrated module of an OBC and an inverter includes: an OBC primary side circuit and a plurality of transformers converting, when 3-phase alternating current (AC) voltages are received from a fuel station, the 3-phase AC voltages in form and level and transmitting the converted voltages into a secondary side; and an inverter switch turned off in a charge mode in which a high capacity vehicle battery is charged, to rectify an output voltage of a secondary side of each of the plurality of transformers by a body diode included in each switching element for an inverting function.
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Citations
9 Claims
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1. An integrated module of an on-board charger (OBC) and an inverter, the integrated module comprising:
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an OBC primary side circuit and a plurality of transformers converting, when 3-phase alternating current (AC) voltages are received from a fuel station, each of the 3-phase AC voltages in form and level and transmitting each of the converted voltages into a secondary side; an inverter switch turned off in a charge mode in which a high capacity vehicle battery is charged, to rectify an output voltage of the secondary side of each of the plurality of transformers by a body diode which is included in each switching element for an inverting function; and a plurality of first switches provided between a plurality of nodes of the inverter switch receiving an output of the secondary side of each of the plurality of transformers and the output of the secondary side of each of the plurality of transformers, the plurality of first switches controlled to be closed in the charge mode and controlled to be opened in an operation mode while a vehicle travels. - View Dependent Claims (2, 3, 4)
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5. A method for controlling an integrated module of a charger and an inverter in which a body diode of an inverter switch is used as a rectifying diode of a high capacity on-board charger (OBC) by at least one processor, the method comprising:
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determining whether a driving mode is an operation mode in which a vehicle travels or a charge mode in which a high capacity vehicle battery is charged; configuring, when the driving mode is the operation mode, a path for the inverter switch to convert an output of the high capacity vehicle battery into an alternating current (AC) and supply the converted AC to a vehicle driving motor, and controlling a first switch provided between a plurality of nodes of the inverter switch, which respectively receive outputs of secondary sides of a plurality of transformers, and the secondary sides of the plurality of transformers, to be opened in the operation mode. - View Dependent Claims (6, 7, 8, 9)
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Specification