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US 2019/0058427 A1Published application
Generation of Motor Drive Signals with Misalignment Compensation
AssigneeInfineon Technologies AG
InventorsThomas Hafner, Leo Aichriedler, Gerald Wriessnegger
Life of this patent
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Abstract
A motor drive circuit provides a drive signal to an electronically commutated motor. A control circuit the motor drive circuit based on calibration data. The calibration data indicate a relationship between an actual angular position of a rotor of the motor in response to the drive signal and an expected angular position of a rotor of an ideal motor in response to the drive signal.
Claims27
A motor controller, comprising:
- a motor drive circuit configured to provide a drive signal to an electronically commutated motor;
- and
- a control circuit configured to control the motor drive circuit based on calibration data indicating a relationship between an actual angular position of a rotor of the motor in response to the drive signal and an expected angular position of a rotor of an ideal motor in response to the drive signal.
A motor calibration device, comprising:
- a control circuit configured to control a drive signal provided to an electronically commutated motor;
- and
- a calibration circuit configured to:
- receive at least one measured angular position of a rotor of the motor in response to the drive signal, and
- based on the at least one measured angular position, determine calibration data indicating a relationship between an actual angular position of the rotor in response to the drive signal and an expected angular position of a rotor of an ideal motor in response to the drive signal.
2 more elements
A method of controlling a motor, the method comprising:
- providing a drive signal to an electronically commutated motor;
- and
- controlling the drive signal based on calibration data indicating a relationship between an actual angular position of a rotor of the motor in response to the drive signal and an expected angular position of a rotor of an ideal motor in response to the drive signal.
A method of calibrating a motor, the method comprising:
- controlling a drive signal provided to an electronically commutated motor;
- receiving at least one measured angular position of a rotor of the motor in response to the drive signal;
- and
- based on the at least one measured angular position, determining calibration data indicating a relationship between an actual angular position of the rotor of the motor in response to the drive signal and an expected angular position of a rotor of an ideal motor in response to the drive signal.
1 more element
Dependencies are inferred from the claim text.