Modulation strategy for maximization of battery heating efficiency
AssigneeGM Global Technology Operations LLC
InventorsRenato Amorim Torres, Suresh Gopalakrishnan, Lei Hao, Chandra S. Namuduri, Thomas W. Nehl
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Abstract
A modulation strategy for maximization of battery heating efficiency is provided. A system includes an inverter coupled to a high voltage battery and a motor. A control system is coupled to the inverter. The control system is configured to control the inverter to output a first electrical current having a first triangular waveform to the motor, a second electrical current having a second triangular waveform to the motor, and a third electrical current to the motor. The first and second triangular waveforms are out of phase.
Claims20
A system comprising:
- an inverter coupled to a high voltage battery and a motor;
- and
- a control system coupled to the inverter, wherein the control system is configured to control the inverter to output a first electrical current having a first triangular waveform to the motor, a second electrical current having a second triangular waveform to the motor, and a third electrical current to the motor, the first and second triangular waveforms being out of phase.
A system comprising:
- an inverter coupled to a high voltage battery and a motor, the inverter comprising a first set of switches, a second set of switches, and a third set of switches coupled to the high voltage battery;
- and
- a control system coupled to the inverter, the control system comprising a memory having computer readable instructions and a processing device for executing the computer readable instructions in the memory;
- wherein the control system is configured to control the first set of switches of the inverter to output a first electrical current having a first triangular waveform to the motor, control the second set of switches of the inverter to output a second electrical current having a second triangular waveform to the motor, and control the third set of switches of the inverter to output a third electrical current to the motor, the first and second triangular waveforms being out of phase.
A method for heating a high voltage battery, the method comprising:
- causing, by a control system, an inverter to output a first electrical current having a first triangular waveform to a motor;
- causing, by the control system, the inverter to output a second electrical current having a second triangular waveform to the motor, the first and second triangular waveforms being out of phase;
- and
- causing, by the control system, the inverter to output a third electrical current to the motor, the first electrical current, the second electrical current, and the third electrical current being drawn from the high voltage battery.
Dependencies are inferred from the claim text.