Method and system for creating a vibration in an automobile
AssigneeGM Global Technology Operations LLC
InventorsJAMES M. NAGASHIMA, STEVEN E. SCHULZ, YO CHAN SON, JONAS BEREISA
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Abstract
A method and system for operating an automotive electric motor having first and second components is provided. A desired frequency of vibration for the electric motor is selected. A current is caused to flow through at least one of the first and second components such that the second component moves relative to the first component. The current is modulated such that the motor vibrates at the desired frequency.
Claims20
A method for operating an automotive electric motor comprising first and second components, the method comprising:
- selecting a desired frequency of vibration for the electric motor;
- causing a current to flow through at least one of the first and second components such that the second component moves relative to the first component;
- and
- modulating the current such that the motor vibrates at the desired frequency.
A method for operating an automotive electric motor comprising a stator having at least one winding and a rotor having at least one magnet and being rotatably coupled to the stator, the method comprising:
- selecting a desired frequency of vibration for the electric motor;
- causing a current to flow through the at least one winding such that a toque is applied to the rotor that causes the rotor to rotate relative to the stator;
- and
- modulating the current such that the motor vibrates at the desired frequency.
An automotive drive system comprising:
- an electric motor comprising a stator having at least one winding and a rotor having at least one magnet and being rotatably coupled to the stator;
- a direct current (DC) power supply coupled to the electric motor;
- a power inverter comprising at least one transistor and coupled to the electric motor and the DC power supply to receive DC power from the DC power supply and provide alternating current (AC) power to the electric motor;
- a controller in operable communication with the electric motor, the DC power supply, and the power inverter, wherein the controller is configured to:
- receive a signal representative of a desired frequency of vibration for the electric motor;
- operate the at least one transistor so as to cause a current to flow through the at least one winding such that a toque is applied to the rotor that causes the rotor to rotate relative to the stator;
- and
- modulate the current such that the electric motor vibrates at the desired frequency.
Dependencies are inferred from the claim text.