VEHICLE APPROACH NOTIFICATION SOUND GENERATING APPARATUS
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Abstract
It is an object of the present invention to provide a vehicle approach notification sound generating apparatus that is capable of generating a vehicle approach notification sound in a suitable range according to a vehicle speed. The vehicle approach notification sound generating apparatus of the present invention is characterized by including a vehicle speed calculating unit that calculates a vehicle speed, a vehicle external speaker that outputs a vehicle approach notification sound for notifying of approach of the vehicle, and a general controller that controls a directivity angle width representing a breadth of directivity of the vehicle approach notification sound or a directivity direction of the vehicle approach notification sound, wherein the general controller controls the directivity angle width or the directivity direction according to the speed calculated by the vehicle speed calculating unit.
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Citations
21 Claims
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1-7. -7. (canceled)
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8. A vehicle approach notification sound generating apparatus comprising:
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a vehicle speed calculating unit that calculates a vehicle speed; a vehicle approach notifying unit that outputs a vehicle approach notification sound for notifying of approach of the vehicle; and a controller that controls a directivity angle width representing a breadth of directivity of said vehicle approach notification sound or a directivity direction of said vehicle approach notification sound, wherein said controller makes control so that as said speed calculated by said vehicle speed calculating unit is faster, said directivity angle width of said vehicle approach notification sound to be output in an advancing direction of said vehicle is narrower, and controls said directivity angle width or said directivity direction so that when said vehicle travels at a current speed, said vehicle approach notification sound is output, at a sound pressure that is equal to or higher than a predetermined sound pressure, to a pedestrian present in a range that enables the pedestrian to move into a path of said vehicle. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A vehicle approach notification sound generating apparatus comprising:
a vehicle speed calculating unit that calculates a vehicle speed; a vehicle approach notifying unit that outputs a vehicle approach notification sound for notifying of approach of the vehicle from a lateral side of said vehicle; and a controller that controls output of said vehicle approach notification sound;
whereinsaid controller makes control so that when said vehicle travels at a current speed, said vehicle approach notification sound is output, at a sound pressure that is equal to or higher than a predetermined sound pressure, to a pedestrian present in a range that enables the pedestrian to move into a path of said vehicle, and as said vehicle speed calculated by said vehicle speed calculating unit is faster, said vehicle approach notifying unit outputs said vehicle approach notification sound to be output from the lateral side of said vehicle to a side closer to an advancing direction of said vehicle. - View Dependent Claims (16, 17, 18, 19, 20, 21)
Specification