Hybrid vehicle power control systems and methods
AssigneeGeneral Electric Company
InventorsRobert Dean King, Dongwoo Song, Lembit Salasoo, Ajith Kuttannair Kumar, Henry Todd Young
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Abstract
A method for controlling a power system of a hybrid vehicle includes determining, during a motoring mode of operation, a desired operating voltage of a direct current (DC) bus included in the power system at a given speed. The desired operating voltage is based on a minimum operating voltage at the given speed and a maximum operating voltage at the given speed, wherein an energy storage element parameter is used establishing the minimum operating voltage.
Claims9
A method for controlling a power system of a hybrid vehicle, the method comprising:
- determining, for a first bus voltage, a point of operation at which a power generation capability of a traction motor of the power system is equal to a power dissipation capability of one or more resistive grid elements in the power system;
- at about said point of operation, increasing first bus voltage to a second bus voltage;
- and
- providing power from the traction motor up to a predetermined operating speed limit of the traction motor above the said point of operation.
A method for controlling a power system of a hybrid vehicle, the method comprising:
- determining, for a first bus voltage, a point of operation at which a power generation capability of a traction motor of the power system is equal to a power dissipation capability of one or more resistive grid elements in the power system, and
- at about said point of operation, increasing said first bus voltage to a second bus voltage via power from an energy device of the vehicle;
- and
- providing power from the traction motor up to a predetermined operating speed limit of the traction motor above the said point of operation.
Dependencies are inferred from the claim text.