Vehicle-mounted independent acoustic space system and vehicle
An acoustic space, vehicle technology, applied in vehicle parts, vehicle seats, special positions of vehicles, etc., can solve the problem of inability to enjoy the private sound field environment for multiple occupants in the vehicle, achieve low delay, high calculation efficiency, Numerical stabilization effect
Active Publication Date: 2022-04-15
CHINA AUTOMOTIVE TECH & RES CENT +1
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Problems solved by technology
[0005] The purpose of the present invention is to provide a vehicle-mounted independent acoustic space system and vehicle to solve the problem in the prior art that multiple occupants in the vehicle cannot enjoy the private sound field environment
Method used
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Embodiment 1
[0094] A vehicle-mounted independent acoustic space system, such as Figure 1-4 As shown, including the vehicle-mounted independent acoustic space device and control system;
[0095] The vehicle-mounted independent acoustic space device includes a first seat headrest and a second seat headrest, the first seat headrest is used to be sleeved on the vehicle main driver's seat headrest 100, and the second seat headrest The headrest is used to cover the headrest 200 of the seat on the right side of the rear row of the vehicle;
[0096] like figure 1 As shown, the first seat headrest includes a headrest main body 11, a first rear cover 14, a first protruding portion 111 and a second protruding portion 112, and the headrest main body 11 is connected to the first rear cover 14 and the first protruding portion respectively. The part 111 is connected to the second protruding part 112;
[0097] The headrest main body 11 is used to be sleeved on the top and side of the headrest 100 of ...
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The invention relates to a vehicle-mounted independent acoustic space system and a vehicle. The vehicle-mounted independent acoustic space system includes a vehicle-mounted independent acoustic space device and a control system, and realizes the purpose of privately enjoying an independent acoustic environment for the driver and passengers in the vehicle through the combination of active control means and passive control means. The filter coefficient in the control system is calculated by the sound partition control optimization algorithm based on the ACC-PM principle. This optimization algorithm has high calculation efficiency and stable numerical value. The filter coefficient obtained by it can ensure that the sound is not too distorted. Greatly change the distribution of acoustic potential energy density in the car; the passive means is this device, which can not only play a certain role in sound insulation, but also change the sound radiation directivity of the speaker, and concentrate the sound radiation energy on the car seat. In front of the headrest, the sound radiation to the rear is greatly reduced, thereby changing the distribution of the acoustic potential energy density in the car.
Description
technical field [0001] The invention relates to the field of car audio, in particular to a vehicle-mounted independent acoustic space system and a vehicle. Background technique [0002] At present, in view of the rapid development of sound partition control algorithms and the widespread popularity of various multimedia devices, the development and design of independent acoustic space systems have attracted more and more attention, and its application in the automotive field is in the ascendant. After the car is equipped with an independent acoustic space system, the so-called "bright area" and "dark area" of the sound can be formed in the car (the bright area and the dark area are both for a specific audio, for example: the driver is listening to voice navigation prompt, then for the voice navigation prompt, the driver’s seat is its bright area, and the other seats in the car are its dark area), the drivers and passengers in the car can enjoy the "you listen to music, I call...
Claims
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IPC IPC(8): B60R11/02B60N2/879
CPCB60R11/0217B60N2/879B60R2011/0017
Inventor 张喆张蒙郭正鑫顾灿松陈达亮苏丽俐石岩
Owner CHINA AUTOMOTIVE TECH & RES CENT