An alert system for a wheeled vehicle comprising a microphone (22) for generating an audio signal based on rolling noise produced by a wheel (21) of the vehicle, an amplifier (23) for amplifying the audio signal, and a loudspeaker (24) for producing sound ...

The electric motorcycle is a saddle type vehicle which includes a front cover which covers a head pipe of a vehicle body frame from forwardly, and a speaker (60) for notifying a walker of approach of a vehicle has a sound emitting direction directed forwar...

A method for directing a vehicle to operate in a noise generating mode based on a context is provided. A present location of the vehicle is determined using a location sensing device (204,300). Then, it is determined whether the present location of the veh...

A dummy sound information storage unit (101) stores information on a dummy sound, an outer generating unit (102) generates a dummy sound outside the vehicle based upon information stored in the dummy sound information storage unit (101), a detecting unit (...

A dummy sound generating apparatus includes a dummy sound information storage unit (101) that stores one or more dummy sounds, and an outer generating unit (102) that generates one of the one or more dummy sounds outside of the vehicle upon reception of a ...