Apparatus and method of controlling a motor
AssigneeHyundai Autoever Corp.
InventorsKi Hoon Kwon, Ji A Lee
Life of this patent
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Abstract
A controller and method for operating a plurality of capacitors of a first phase, wherein the first phase is one of a plurality of phases applied to the motor, a plurality of first switching elements of the first phase, and a plurality of second switching elements of the first phase. The plurality of capacitors charge DC voltage from a battery that applies voltage to the motor. The plurality of first switching elements convert the DC voltage to AC voltage. The plurality of second switching elements switch so that any one of the plurality of capacitors or the plurality of first switching elements is selectively connected to the motor.
Claims20
A controller of a motor comprising:
- a plurality of capacitors of a first phase, wherein the first phase is one of a plurality of phases applied to the motor;
- a plurality of first switching elements of the first phase;
- and
- a plurality of second switching elements of the first phase,
- wherein the plurality of capacitors are configured to charge DC voltage from a battery that applies voltage to the motor,
- wherein the plurality of first switching elements are configured to convert the DC voltage to AC voltage,
- wherein the plurality of second switching elements are configured to switch so that any one of the plurality of capacitors or the plurality of first switching elements is selectively connected to the motor,
- wherein the plurality of second switching elements are configured to switch such that one of the plurality of capacitors is connected to the motor in place of a first switching element, among the plurality of first switches, in which an abnormal signal has occurred, and
- wherein the first phase is a phase including the first switching element in which the abnormal signal has occurred.
A method performed by a controller of a motor, the method comprising:
- connecting, for a first phase that is one of a plurality of phases applied to the motor, a plurality of capacitors connected in series to the motor instead of a plurality of first switching elements using a plurality of second switching elements;
- generating a three-phase voltage using the first phase including the plurality of capacitors connected in series and remaining phases of the plurality of phases each of which including the plurality of first switching elements;
- and
- controlling a magnitude of the generated three-phase voltage by an on-off operation of the plurality of first switching elements included in the remaining phases,
- wherein the first phase is a phase including a first switching element, among the plurality of first switching elements, in which an abnormal signal has occurred.
A non-transitory computer-readable recording medium having a program instructions recorded thereon, the program instructions to direct a controller of a motor to perform acts of:
- connecting, for a first phase that is one of a plurality of phases applied to the motor, a plurality of capacitors connected in series to the motor instead of a plurality of first switching elements using a plurality of second switching elements;
- generating a three-phase voltage using a first phase including the plurality of capacitors connected in series and remaining phases each including the plurality of first switching elements;
- and
- controlling a magnitude of the generated three-phase voltage by an on-off operation of the plurality of first switching elements included in the remaining phases,
- wherein the first phase is a phase including a first switching element, among the plurality of first switching elements, in which an abnormal signal has occurred.
Dependencies are inferred from the claim text.