Turbine power unit for hybrid electric vehicle applications
First Claim
1. A power generation system for a hybrid electric vehicle, comprising:
- a fuel source to provide fuel;
a turbogenerator, coupled to the fuel source, to generate AC power;
a power controller, electrically coupled to the turbogenerator, including first and second power converters, said first power converter to convert said AC power to a DC voltage on a DC bus, and said second power converter to convert said DC voltage on said DC bus to an operating DC voltage on output lines, said power controller to regulate the fuel to the turbogenerator, independent of the DC voltage on the DC bus;
an electric motor;
a drive control unit coupled between the output lines and the electric motor, said drive control unit, under control of the power controller, to couple or isolate the electric motor to or from the output lines; and
a traction battery coupled across the output lines, said traction battery to provide an additional source of current, upon demand, to the electric motor.
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Accused Products
Abstract
A power generation system for a hybrid electric vehicle is disclosed. The system includes a fuel source, a turbogenerator coupled to the fuel source, and a power controller. The power controller is electrically coupled to the turbogenerator, and includes first and second power converters. The first power converter converts AC power from the turbogenerator to DC power on a DC bus, and the second power converter converts the DC power on the DC bus to an operating DC power on output lines. The power controller regulates the fuel to the turbogenerator, independent of DC voltage on the DC bus. The system further includes an electric motor, a drive control unit coupled between the output lines and the electric motor, and a traction battery. The traction battery is coupled across the output lines, and provides an additional source of current, upon demand, to the electric motor.
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Citations
27 Claims
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1. A power generation system for a hybrid electric vehicle, comprising:
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a fuel source to provide fuel;
a turbogenerator, coupled to the fuel source, to generate AC power;
a power controller, electrically coupled to the turbogenerator, including first and second power converters, said first power converter to convert said AC power to a DC voltage on a DC bus, and said second power converter to convert said DC voltage on said DC bus to an operating DC voltage on output lines, said power controller to regulate the fuel to the turbogenerator, independent of the DC voltage on the DC bus;
an electric motor;
a drive control unit coupled between the output lines and the electric motor, said drive control unit, under control of the power controller, to couple or isolate the electric motor to or from the output lines; and
a traction battery coupled across the output lines, said traction battery to provide an additional source of current, upon demand, to the electric motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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15. A hybrid electric vehicle, comprising:
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one or more input devices to provide one or more user inputs;
a fuel source;
a turbogenerator to generate AC power;
a power controller electrically coupled to the turbogenerator and coupled to receive the user inputs, said power controller including first and second power converters, said first power converter to convert said AC power to a DC voltage on a DC bus, and said second power converter to convert said DC voltage on said DC bus to an operating DC voltage on output lines, said power controller to regulate the fuel flow to the turbogenerator based on at least one user input, independent of the DC voltage on the DC bus;
an electric motor;
a drive control unit coupled between the output lines and the electric motor, said drive control unit, under control of the power controller, to couple or isolate the electric motor to or from the output lines; and
a traction battery coupled across the output lines, said traction battery to provide an additional source of current to the electric motor.
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Specification