Configurable hybrid drive systems
AssigneeFord Global Technologies, LLC
InventorsBaoming Ge, Lihua Chen, Shuitao Yang, Yan Zhou, Fan Xu, Mohammed Khorshed Alam
Life of this patent
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Abstract
A powertrain for a vehicle includes an electric machine and a controller. The electric machine has electrically isolated windings and is coupled with an inverter. The controller may be programmed to configure respective terminals of the windings to form a Y-connection, and responsive to an electrical connection between the vehicle and a 3-phase power grid, reconfigure the respective terminals such that each is coupled to a respective phase of the 3-phase power grid.
Claims17
A powertrain for a vehicle comprising:
- an electric machine, having electrically isolated windings, coupled with an inverter;
- and a controller programmed to configure respective terminals of the windings to form a Y-connection, and responsive to an electrical connection to establish current flow between the vehicle and a 3-phase power grid, reconfigure the respective terminals such that each is coupled to a respective phase of the 3-phase power grid and responsive to an electrical connection between the vehicle and a single-phase power grid, decouple the Y-connection, couple a capacitor between a first winding terminal and a second winding terminal, and couple the second winding terminal and a third winding terminal to the single-phase power grid.
A method of controlling a powertrain comprising:
- responsive to an electrical connection to establish current flow between a 3-phase power grid and an electric vehicle containing the powertrain, decoupling windings of a Y-connection of an electric machine of the powertrain to electrically isolate the windings, and coupling each of the electrically isolated windings to a phase of the 3-phase power grid;
- and responsive to an electrical connection between the vehicle and a single-phase power grid, decouple the Y-connection, couple a capacitor between a first winding terminal and a second winding terminal, and couple the second winding terminal and a third winding terminal to the single-phase power grid.
A vehicle powertrain comprising:
- an electric machine having electrically isolated windings;
- and
- a switch configured to couple respective terminals of the windings to form a Y-connection, and responsive to an electrical connection between the vehicle and a single-phase power grid, disconnect the Y-connection, couple a capacitor between a first winding terminal and a second winding terminal, and couple the second winding terminal and a third winding terminal to the single-phase power grid and responsive to an electrical connection to establish current flow between the vehicle and a 3-phase power grid, decouple the Y-connection and couple each winding terminal to a phase of the 3-phase power grid.
Dependencies are inferred from the claim text.