Principle of Operation of Adaptive Acoustic Alarm System for Quiet Vehicles

This invention generally refers to the technology of sound emission in a vehicle to inform a person in the area surrounding the vehicle that the vehicle is moving or about to start moving in the direction of movement, for example forward or backward. More specifically, this invention refers to a method of sound alerting for vehicles (V) with a low noise level. A method of sound alerting for low-noise vehicles (TS), containing the stages during which: a) using external devices installed on the vehicle, input data parameters are obtained which include at least the following information: on activation/deactivation of the vehicle, information on the selected mode of movement of the vehicle, information on the vehicle speed, information on the geolocation zone in which the vehicle is located, information on the current time of day, information on the position of the visibility value controller; b) a sound data packet containing at least two event sounds, a parking sound, a forward motion sound consisting of four separate layers, and a reverse movement sound is received from the AVAS (Acoustic Vehicle Alert System) computing unit; c) the received data are processed at the stages a) and b) using a processing module, as a result of which a sound signal is generated for the alert mode depending on the values of the data of the input parameters and the sound data packet, and the alert volume level depending on information on the current time of day, information on the geolocation zone in which the vehicle is located, and the information on the position of the visibility value controller; d) a sound alerting is carried out using a vehicle speaker system with a set volume and a set sound mode, determined at step c).