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Active type acoustic control system

A technology of active noise control and sound control, applied in active noise control, sound-generating devices, instruments, etc.

Inactive Publication Date: 2013-08-21
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] But even in the invention described in U.S. Patent Application Publication No. 2006 / 0269078, there is still the possibility that the ANC device and the ASC device can be used in a more suitable state

Method used

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  • Active type acoustic control system
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Embodiment Construction

[0019] [A. One embodiment]

[0020] An embodiment of the present invention will be described below with reference to the drawings.

[0021] 1. The structure of the whole and each part

[0022] (1) Overall structure

[0023] figure 1 It is a schematic configuration diagram showing a vehicle 10 equipped with an active sound control system 12 (hereinafter referred to as "sound control system 12") according to an embodiment of the present invention. The vehicle 10 may be an automobile driven by a gasoline engine, an electric automobile, or a fuel cell automobile. In addition, the active sound control system has the functions of both ANC device and ASC device.

[0024] The sound control system 12 includes a sound control unit 14, a speaker 16, a microphone 18, and an amplifier 20. In the sound control system 12, a fuel injection control device 22 {hereinafter referred to as "FI ECU 22 (FI ECU: Fuel Injection Electronic Control Unit)") used to control the fuel injection condition of the e...

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PUM

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Abstract

In an acoustic control system (12) an operation range of an active type noise control device (an ANC device) and an operation range of an active type effect sound control device (an ASC device) are exchanged in accordance with the number (Ncy) of working cylinders of an engine (E)

Description

Technical field [0001] The invention relates to an active sound control system, which has an active noise control device and an active analog sound generating device. Background technique [0002] As sound control devices related to noise in the cabin, there are known Active Noise Control Apparatus (Active Noise Control Apparatus, hereinafter referred to as "ANC device") and Active Sound Control Apparatus (Active Sound Control Apparatus, hereinafter referred to as "ASC device") ). [0003] The ANC device generates a cancellation sound wave to reduce the noise. The noise includes, for example, the noise generated in the cabin due to the operation of the engine (low-frequency sound emitted by the engine) or in the cabin due to the contact between the wheels and the road surface when the vehicle is running Vibration noise (road noise). There are, for example, the following types of ANC devices. One is to switch the ANC device on and off according to the number of working cylinders, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R11/02G10K11/178G10K15/00G10K15/04
CPCG10K2210/1282G10K15/02G10K11/1782G10K11/17821G10K11/17823G10K11/1783G10K11/17854G10K11/17883G10K11/17885
Inventor 坂本浩介井上敏郎高桥彰小林康统笛木俊吾
Owner HONDA MOTOR CO LTD