MULTI-FUNCTIONAL ON-VEHICLE POWER CONVERTER AND ELECTRIC VEHICLE COMPRISING THE SAME
First Claim
1. An on-vehicle power converter for electric vehicle, at least comprising a DC-DC converter, and an on-vehicle unit of a wireless charging converter, characterized in that a primary side of the DC-DC converter and a secondary side of the wireless charging converter share a rectifying circuit, a filtering circuit and an electromagnetic compatible circuit.
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Abstract
The invention relates to automotive electronic and electrical technology, and in particular, to a multi-functional on-vehicle power converter for electric vehicle as well as an electric vehicle comprising the multi-functional on-vehicle power converter. In the invention, by introducing two independent switches, a rectifying circuit, a filtering circuit, an output EMC circuit and a corresponding control unit (e.g., a CAN communication circuit and a signal collecting circuit, etc.) can be shared among a conductive charging converter, an on-vehicle part of a wireless charging converter and a DC-DC converter, and a convenient and swift switch can be realized among the three operational modes. In addition, since the circuit units are shared, the number of cooling circuits is also reduced, and the occupied space and weight of the on-vehicle power converter are decreased.
14 Citations
20 Claims
- 1. An on-vehicle power converter for electric vehicle, at least comprising a DC-DC converter, and an on-vehicle unit of a wireless charging converter, characterized in that a primary side of the DC-DC converter and a secondary side of the wireless charging converter share a rectifying circuit, a filtering circuit and an electromagnetic compatible circuit.
- 9. An on-vehicle power converter for electric vehicle, at least comprising an on-vehicle charging converter and an on-vehicle unit of a wireless charging converter, characterized in that a secondary side of the on-vehicle charging converter and a secondary side of the wireless charging converter share a rectifying circuit, a filtering circuit and an electromagnetic compatible circuit.
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10. An on-vehicle power converter for electric vehicle, characterized by comprising:
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a first switch; a second switch; an isolation transformer; an on-vehicle charging converter primary side unit connected with a primary side of the isolation transformer; a secondary side rectifying circuit; and an output electromagnetic compatible circuit connected with the secondary side rectifying circuit, wherein an input side of the secondary side rectifying circuit is connected with a ground unit of a wireless charging converter and a secondary side of the isolation transformer of the on-vehicle charging converter via the first switch and the second switch, respectively; and wherein when the first switch is closed and the second switch is opened, a direct current output from the ground unit of the wireless charging converter is converted into a high voltage direct current by the rectifying circuit, and when the first switch is opened and the second switch is closed, a direct current output from the on-vehicle charging converter primary side unit is converted into a high voltage direct current by the rectifying circuit. - View Dependent Claims (20)
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Specification