Integrated charger for vehicles and method of making same
First Claim
1. A traction system comprising:
- a DC bus;
an energy storage device coupled to the DC bus;
a voltage converter assembly coupled to the energy storage device, the voltage converter assembly comprising at least one phase leg;
an electromechanical device coupled to the voltage converter assembly, the electromechanical device comprising at least one winding;
a first switching device coupled between the electromechanical device and the energy storage device;
a second switching device coupled to the DC bus between the voltage converter assembly and the energy storage device; and
a controller configured to;
control the first and second switching devices such that a charging path is defined by at least one phase leg of the voltage converter assembly and at least one winding of the electromechanical device in the order named; and
control the voltage converter assembly such that a DC charging voltage derived from a voltage source is stepped down via the charging path to convert the DC charging voltage to a voltage suitable for charging the energy storage device.
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Accused Products
Abstract
According to some embodiments, a traction system is disclosed. The traction system includes a DC bus, an energy storage device coupled to the DC bus, and a voltage converter assembly coupled to the energy storage device. The voltage converter assembly includes a plurality of phase legs. The traction system further includes an electromechanical device including a plurality of windings coupled to the voltage converter assembly. The traction system also includes a switch coupled to the DC bus between the voltage converter assembly and the energy storage device. The traction system includes a controller configured to control the switch and the voltage converter assembly such that a phase leg and a winding of the electromechanical device form a DC/DC converter.
20 Citations
9 Claims
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1. A traction system comprising:
- a DC bus;
an energy storage device coupled to the DC bus;
a voltage converter assembly coupled to the energy storage device, the voltage converter assembly comprising at least one phase leg;
an electromechanical device coupled to the voltage converter assembly, the electromechanical device comprising at least one winding;
a first switching device coupled between the electromechanical device and the energy storage device;
a second switching device coupled to the DC bus between the voltage converter assembly and the energy storage device; and
a controller configured to;
control the first and second switching devices such that a charging path is defined by at least one phase leg of the voltage converter assembly and at least one winding of the electromechanical device in the order named; and
control the voltage converter assembly such that a DC charging voltage derived from a voltage source is stepped down via the charging path to convert the DC charging voltage to a voltage suitable for charging the energy storage device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- a DC bus;
Specification