Inverter phases and parameters as oscillator in vehicle sound generator
AssigneeDelphi Technologies IP Limited
InventorEli David Hoopengarner
Life of this patent
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Abstract
A sound synthesis system and method are provided for an electric or hybrid electric vehicle. The system receives an audio signal from an inverter of the vehicle comprising an analog waveform, a digital waveform, or a parameter. The audio signal from the inverter is synthesized and combined with another audio signal via at least one of combination, superimposition, mixing, multiplication, and adding, and the combined signal is amplified and output as a synthesized audio signal or as a visual display of a waveform of the amplified, combined signal.
Claims21
A sound synthesis method comprising:
- receiving at least one of an analog waveform, a digital waveform, and a parameter, from an inverter of a vehicle;
- synthesizing a first audio signal based on the at least one of the analog waveform, the digital waveform, and the parameter;
- generating a combined signal based on the first audio signal and a second audio signal using at least one of a combination function, a superimposition function, a mixing function, a multiplication function, and an adding function;
- generating an amplified combined signal by amplifying the combined signal;
- and
- outputting the amplified combined signal.
A sound synthesis system comprising:
- an input configured to receive at least one of an analog waveform, a digital waveform, and a parameter from an inverter of a vehicle;
- a synthesizer operatively connected to the first input and configured to synthesize a first audio signal based on the at least one of the analog waveform, the digital waveform, and the parameter;
- a combination module operatively connected to the synthesizer and configured to generate a combined signal based on the first audio signal and a second audio signal using at least one of a combination function, a superimposition function, a mixing function, a multiplication function, and an adding function;
- an audio amplifier operatively connected to the combination module and configured to generate an amplified combined signal by amplifying the combined signal;
- and
- an output module configured to output the amplified combined signal.
A vehicle comprising:
- an electric motor;
- an inverter;
- and
- a sound synthesis system comprising:
- an input operatively connected to the inverter and configured to receive at least one of an analog waveform, a digital waveform, and a parameter from the inverter;
- a synthesizer operatively connected to the first input and configured to synthesize the first audio signal based on the at least one of the analog waveform, the digital waveform, and the parameter;
- a combination module operatively connected to the synthesizer and configured to generate a combined signal based on the first audio signal and a second audio signal using at least one of a combination function, a superimposition function, a mixing function, a multiplication function, and an adding function;
- an audio amplifier operatively connected to the combination module and configured to generate an amplified combined signal by amplifying the combined signal;
- and
- an output module configured to output the amplified combined signal.
Dependencies are inferred from the claim text.