Sound reproducing apparatus and vehicle having the same

Patent metadata

Field	Value
Publication number	US-11902753-B2
Application number	US-202217680010-A
Country	US
Kind code	B2
Filing date	Feb 24, 2022
Priority date	Jun 9, 2021
Publication date	Feb 13, 2024
Grant date	Feb 13, 2024

Abstract

A vehicle includes a speed detecting device provided to detect a driving speed, a pressure detecting device provided to detect a pressure applied to a brake pedal, a power information obtaining device provided to obtain power information of a power device, and a sound reproducing apparatus provided to determine whether the vehicle is in a start state or a driving state according to driving speed information detected by the speed detecting device, pressure information detected by the pressure detecting device, and the power information, control reproduction of post-combustion noise when the processor concludes that the vehicle is in the start state, control reproduction of a slip sound in response to an acceleration command or a deceleration command when the vehicle is in the driving state, and control reproduction of an acceleration sound corresponding to an acceleration force when the vehicle is accelerating in the driving state.

First claim

What is claimed is:

1. A sound reproducing apparatus comprising:
a communication network configured to receive vehicle state information; and
a processor configured to determine whether a vehicle is in a start state or a driving state according to the vehicle state information received through the communication network, to control reproduction of post-combustion noise when the processor concludes that the vehicle is in the start state, to control reproduction of a slip sound in response to an acceleration command or a deceleration command when the processor concludes that the vehicle is in the driving state, and to control reproduction of an acceleration sound corresponding to an acceleration force when the processor concludes that the vehicle is accelerating in the driving state.

2. The sound reproducing apparatus of claim 1 , wherein the vehicle state information includes at least one of driving speed information, engine information, brake pedal pressure information, and shift information.

3. The sound reproducing apparatus of claim 1 , further including
an input device configured to receive at least one of sound volume information and timbre information on sound reproduction,
wherein the processor, when controlling the reproduction of the post-combustion noise, is configured to adjust at least one of a sound volume and a timbre of the post-combustion noise according to the at least one of the sound volume information and the timbre information received in the input device, and to control reproduction of the adjusted post-combustion noise.

4. The sound reproducing apparatus of claim 1 , further including
a memory configured to store information on a plurality of slip sounds,
wherein the processor is configured to obtain a first pressing pattern in which a brake pedal of the vehicle is pressed and a second pressing pattern in which an accelerator pedal of the vehicle is pressed, according to the vehicle state information, and to store information on a first slip sound corresponding to the obtained first pressing pattern and a second slip sound corresponding to the obtained second pressing pattern among the plurality of slip sounds, in the memory.

5. The sound reproducing apparatus of claim 4 , wherein when the deceleration command is received, the processor is configured to adjust a timbre of the first slip sound based on a slip rate of each wheel of the vehicle and to control reproduction of the adjusted first slip sound.

6. The sound reproducing apparatus of claim 5 , wherein when the acceleration command is received, the processor is configured to adjust a timbre of the second slip sound based on the slip rate of each wheel of the vehicle and to control reproduction of the adjusted second slip sound.

7. The sound reproducing apparatus of claim 6 , wherein the processor is configured to identify at least one information of wheel speed information, yaw rate information, and acceleration information of each wheel in the vehicle state information, and to obtain the slip rate of each wheel according to the identified at least one information.

8. The sound reproducing apparatus of claim 1 , wherein when controlling the reproduction of the acceleration sound, the processor is configured to identify at least one information of engine rpm, a torque of an engine, and a throttle opening amount of the engine of the vehicle state information, to obtain the acceleration force according to the identified at least one information, and to correct a sound pressure of the acceleration sound according to the obtained acceleration force.

9. The sound reproducing apparatus of claim 8 , wherein the processor is configured to correct the sound pressure of the acceleration sound when the acceleration force is equal to or less than a first acceleration force or exceeds a second acceleration force higher than the first acceleration force.

10. The sound reproducing apparatus of claim 1 , further including:
a memory; and
an input device configured to receive user identification information,
wherein the processor is configured to identify at least one information of engine rpm, a torque of an engine, and a throttle opening amount of the engine of the vehicle state information, to obtain an acceleration pattern for each user according to the identified at least one information and the user identification information, to correct a sound pressure of the acceleration sound for each user according to a difference in sound pressure comparing the sound pressure of the acceleration sound corresponding to the acceleration pattern for each user and a basic sound pressure, and to store information on the corrected sound pressure of the acceleration sound in the memory.

11. The sound reproducing apparatus of claim 1 , further including:
a microphone;
an acceleration detector; and
a speaker,
wherein the processor is configured to generate a noise canceling signal based on a signal received in the microphone, an acceleration signal detected by the acceleration detector, and a sound output from the speaker, and to control an output of the generated noise canceling signal.

12. A vehicle comprising:
a speed detecting device configured to detect a driving speed;
a pressure detecting device configured to detect a pressure applied to a brake pedal of the vehicle;
a power information obtaining device configured to obtain power information of a power device; and
a sound reproducing apparatus configured to determine whether the vehicle is in a start state or a driving state according to driving speed information detected by the speed detecting device, pressure information detected by the pressure detecting device, and the power information, to control reproduction of post-combustion noise when the sound reproducing apparatus concludes that the vehicle is in the start state, to control reproduction of a slip sound in response to an acceleration command or a deceleration command when the sound reproducing apparatus concludes that the vehicle is in the driving state, and to control reproduction of an acceleration sound corresponding to an acceleration force when the sound reproducing apparatus concludes that the vehicle is accelerating in the driving state.

13. The vehicle of claim 12 , further including
an input device configured to receive at least one of sound volume information and timbre information on sound reproduction,
wherein the sound reproducing apparatus, when controlling the reproduction of the post-combustion noise, is configured to adjust at least one of a sound volume and a timbre of the post-combustion noise according to the at least one of the sound volume information and the timbre information received in the input device, and to control reproduction of the adjusted post-combustion noise.

14. The vehicle of claim 12 , wherein the sound reproducing apparatus, when controlling the reproduction of the slip sound, is configured to control reproduction of a first slip sound when the sound reproducing apparatus concludes that the deceleration command is received in response to pressing of a brake pedal of the vehicle, and to control reproduction of a second slip sound when the sound reproducing apparatus concludes that the acceleration command is received in response to pressing of an accelerator pedal of the vehicle.

15. The vehicle of claim 14 , wherein the sound reproducing apparatus is configured to:
identify at least one information of wheel speed information, yaw rate information, and acceleration information of each wheel of the vehicle and obtain a slip rate of each wheel based on the identified at least one information, and
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Assignees

• Hyundai Motor Co Ltd
• Kia Corp

Inventors

• Kim Kichang
• Yun Taekun
• Park Dong Chul
• Jo Eunsoo
• Lee Jinsung

Classifications

• H04R3/00 Primary

  Circuits for transducers (arrangements for producing a reverberation or echo sound G10K15/08; amplifiers H03F) · CPC title

• G06F3/165

  Management of the audio stream, e.g. setting of volume, audio stream path · CPC title

• G10K11/175

  using interference effects; Masking sound · CPC title

• H04R2430/01

  Aspects of volume control, not necessarily automatic, in sound systems · CPC title

• H04R2499/13

  Acoustic transducers and sound field adaptation in vehicles · CPC title