Variable voltage converter (VVC) with integrated battery charger
AssigneeFord Global Technologies, LLC
InventorLihua Chen
Life of this patent
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Abstract
A variable voltage converter (VVC) is configured to provide bidirectional voltage boost and buck from an input side to an output side. A VVC can include a voltage control portion and a battery charging portion. When incorporated into an inverter system controller (ISC) for a hybrid electric vehicle, the VVC can be configured to charge a battery during both high and low ISC dc bus voltage conditions. A VVC can be configured to receive power from an ac power source through a plug coupled to the VVC via a soft start rectifier. Accordingly, the VVC with integrated battery charger can be used to charge a battery for a Plug-In Hybrid Electric Vehicle (PHEV) from a standard ac electrical outlet.
Claims20
A system comprising:
- a DC power supply configured to provide power for an electric drive system of a vehicle;
- an inverter system control (ISC) circuit coupled to, and configured to receive DC power from, said power supply;
- wherein said ISC circuit includes a voltage converter portion, and an inverter portion configured to provide power to a permanent magnet synchronous machine (PMSM) for said electric drive system;
- and
- wherein said ISC circuit is configured for bidirectional voltage boost operation between its inverter portion and said DC power supply.
A system comprising:
- a variable voltage converter (VVC) having an integrated battery charger portion configured to provide energy to a fraction battery for an electrified vehicle, and having a voltage control portion coupled to said battery charger portion by an inductor;
- an inverter coupled to said VVC and configured to provide power to a permanent magnet synchronous machine (PMSM) for said electrified vehicle;
- and
- wherein said VVC is configured to receive DC power input from said traction battery.
A variable voltage converter (VVC), comprising:
- a battery charging portion configured to charge a traction battery for an electrified vehicle;
- a voltage control portion configured to control an output voltage;
- wherein said battery charging portion and said voltage control portion are directly coupled to an inductor disposed therebetween;
- and
- wherein said VVC is configured to provide bidirectional voltage boost operation.
Dependencies are inferred from the claim text.