Multi-purpose automotive sound device
First Claim
Patent Images
1. A vehicle comprising:
- front and rear wheels;
side mirrors;
a sound device configured to operate in a first mode and a second mode to generate an audio signal, the sound device separate from and disposed adjacent to one of the front wheels and one of the side mirrors; and
a controller configured to activate the sound device in the first mode or the second mode based on a state of the vehicle, wherein the sound device comprises a first sounder and a second sounder, wherein;
when the controller activates the sound device in the first mode, the first sounder generates a first audio signal at a sound pressure level (SPL) within a first SPL range and at a frequency within a first frequency range; and
when the controller activates the sound device in the second mode, the second sounder generates a second audio signal at a SPL within a second SPL range and a frequency within a second frequency range, andwherein the controller is further configured to;
define the first SPL range, the first frequency range, the second SPL range, and the second frequency range; and
wherein the controller is configured to detect at least a portion of second frequency range that overlaps with the first frequency range and omit the overlapping portion of the second frequency range.
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Abstract
A vehicle includes a multi-purpose automotive sound device for alerting pedestrians. The vehicle includes front and rear wheels, side mirrors, a sound device, and a controller. The sound device operates in a first mode and a second mode to generate an audio signal. The sound device is disposed adjacent to the front wheel and one of the side mirrors. The controller activates the sound device in the first mode or the second mode based on a state of the vehicle.
49 Citations
14 Claims
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1. A vehicle comprising:
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front and rear wheels; side mirrors; a sound device configured to operate in a first mode and a second mode to generate an audio signal, the sound device separate from and disposed adjacent to one of the front wheels and one of the side mirrors; and a controller configured to activate the sound device in the first mode or the second mode based on a state of the vehicle, wherein the sound device comprises a first sounder and a second sounder, wherein; when the controller activates the sound device in the first mode, the first sounder generates a first audio signal at a sound pressure level (SPL) within a first SPL range and at a frequency within a first frequency range; and when the controller activates the sound device in the second mode, the second sounder generates a second audio signal at a SPL within a second SPL range and a frequency within a second frequency range, and wherein the controller is further configured to; define the first SPL range, the first frequency range, the second SPL range, and the second frequency range; and wherein the controller is configured to detect at least a portion of second frequency range that overlaps with the first frequency range and omit the overlapping portion of the second frequency range. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of operating a vehicle, comprising:
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detecting, by a controller, a state of the vehicle; determining, by the controller, whether an input corresponds to a first mode or a second mode based on the state of the vehicle; generating, by a sound device, an audio signal corresponding to the input, the audio signal generated from a location separate from and adjacent to a front wheel and a side mirror of the vehicle; responsive to determining that the input correspond to the first mode, generating, by a first sounder included in the sound device, a first audio signal at a sound pressure level (SPL) falling under a first SPL range and at a frequency falling under a first frequency range; responsive to determining that the input correspond to the second mode, generating, by a second sounder included in the sound device, a second audio signal at a SPL falling under a second SPL range and a frequency falling under a second frequency range; defining, by the controller, the first SPL range, the first frequency range, the second SPL range, and the second frequency range; detecting, by the controller, at least a portion of the second frequency range that overlaps with the first frequency range; and omitting, by the controller, the overlapping portion of the second frequency range. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification