US 2024/0196153 A1 · VIRTUAL ENGINE SOUND CONTROL SYSTEM AND CONTROL METHOD THEREOF

Abstract

A virtual engine sound generating system and method are provided in which each of speakers outputting a virtual engine sound provides an intended optimal virtual engine sound to a driver by adjusting a time for a virtual engine sound to reach the driver and an amplitude of an engine sound that reaches the driver when the head position of the driver changes from a reference position. The system includes speakers provided in a vehicle to output the virtual engine sound, an engine sound generating unit generating the sound, and a controller calculating a head position of a driver based on state information of the driver's seat, adjusting a delay time at which the virtual engine sound is output and/or an amplification factor for each of the speakers based on the calculated head position, and outputting an adjusted delay time and/or amplification factor to the engine sound generating unit.

Claims14

Dependent claims

A virtual engine sound generating system comprising:

a plurality of speakers provided in a vehicle and configured to output a virtual engine sound;
an engine sound generating unit configured to generate the virtual engine sound;
and
a controller configured to calculate a head position of a driver based on state information of the driver's seat in the vehicle, to adjust at least one of a delay time at which the virtual engine sound is output and an amplification factor for each of the plurality of speakers based on the calculated head position, and to output an adjusted at least one of the delay time or the amplification factor to the engine sound generating unit.

1 more element

A method of controlling a virtual engine sound, the method comprising:

calculating, by a controller, a head position of a driver based on state information of a driver's seat in a vehicle;
calculating a delay time for outputting a virtual engine sound from each of a plurality of speakers so that the virtual engine sounds output from the plurality of speakers simultaneously reach the head position of the driver based on the calculated head position;
calculating a change in amplitude according to a change in distance between the plurality of speakers and the head position of the driver based on the calculated head position;
calculating an amplification factor for each of the plurality of speakers so that the virtual engine sound reaches the head position of the driver with a desired engine sound volume for each of the plurality of speakers based on the calculated change in amplitude;
and
performing a delay time and engine sound amplification on the virtual engine sound generated by the engine sound generating unit based on the delay time and the amplification factor calculated for each of the plurality of speakers so that the virtual engine sound is output from the corresponding speaker.

3 more elements

Dependencies are inferred from the claim text.

Virtual engine sound control system and control method thereof

Life of this patent

Virtual engine sound control system and control method thereof

Life of this patent

Abstract

Claims14