Vehicle notification sound generation system
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsTohru Takamura, Jun Kokaji, Masahiro Mori
Life of this patent
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Abstract
There is provided a vehicle notification sound generation system mounted on a self-driving capable electric bus, and the system has a speaker that outputs a verbal speech about arrival of the electric bus at a destination and outputs a non-verbal sound corresponding to a state of acceleration/deceleration of the electric bus before acceleration/deceleration operation or during acceleration/deceleration of the electric bus.
Claims17
A vehicle notification sound generation system mounted on a self-driving capable bus-type vehicle, the system comprising a vehicle interior speaker that outputs a verbal speech about arrival of the vehicle at a destination and a non-verbal sound corresponding to a state of acceleration/deceleration or a state of turning of the vehicle before acceleration/deceleration operation, during acceleration/deceleration, before the start of turning, or during turning of the vehicle.
A vehicle notification sound generation system mounted on a self-driving capable bus-type vehicle, the system comprising:
- a first speaker that outputs a verbal speech about arrival of the vehicle at a destination;
- a volume adjustment unit that adjusts a gain of an approach notification sound signal according to behavior information of the vehicle input from an automatic driving device of the vehicle, to thereby generate a non-verbal sound signal corresponding to a state of acceleration/deceleration or a state of turning of the vehicle before acceleration/deceleration operation, during acceleration/deceleration, before the start of turning, or during turning of the vehicle, the approach notification sound signal being output from an approach notification sound generation system mounted on the vehicle;
- and
- a second speaker that outputs a non-verbal sound based on the non-verbal sound signal generated by the volume adjustment unit.
A vehicle notification sound generation system mounted on a self-driving capable bus-type vehicle, the system comprising:
- a first speaker that outputs, into a vehicle chamber, a verbal speech about arrival of the vehicle at a destination;
- a duct speaker that outputs, to the outside of the vehicle, an approach notification sound output from an approach notification sound generation system mounted on the vehicle, and has a duct connected thereto, the duct communicating with the vehicle chamber;
- an acoustic shutter that is provided in the duct for opening and closing an opening of the duct on the interior side of the vehicle chamber;
- and
- a shutter control unit that controls the degree of opening of the acoustic shutter according to behavior information of the vehicle input from an automatic driving device of the vehicle.
Dependencies are inferred from the claim text.