JPH0469253U - - Google Patents

Info

Publication number
JPH0469253U
JPH0469253U JP11122090U JP11122090U JPH0469253U JP H0469253 U JPH0469253 U JP H0469253U JP 11122090 U JP11122090 U JP 11122090U JP 11122090 U JP11122090 U JP 11122090U JP H0469253 U JPH0469253 U JP H0469253U
Authority
JP
Japan
Prior art keywords
speaker
noise reduction
engine
reduction device
vehicle interior
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP11122090U
Other languages
Japanese (ja)
Other versions
JP2564309Y2 (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1990111220U priority Critical patent/JP2564309Y2/en
Publication of JPH0469253U publication Critical patent/JPH0469253U/ja
Application granted granted Critical
Publication of JP2564309Y2 publication Critical patent/JP2564309Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Exhaust Silencers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は、本考案に係る車室内騒音の低減装置
の構成図、第２図は、本考案に係る車室内騒音の
低減装置に用いる振動検出手段の取り付け実施例
を示した図、第３図は、従来の車室内騒音の低減
装置の一実施例を示した構成図、第４図は、コン
トローラによる適応制御を説明するための図、で
ある。第１図において、１は車室、２はエンジン
、３はエンジン振動センサ（回転数センサ）、４
は振動センサ、５はコントローラ、６はスピーカ
をそれぞれ示す。図中、同一符号は同一又は相当
部分を示す。 FIG. 1 is a block diagram of the vehicle interior noise reduction device according to the present invention, FIG. 2 is a diagram showing an installation example of the vibration detection means used in the vehicle interior noise reduction device according to the present invention, and FIG. This figure is a block diagram showing an example of a conventional vehicle interior noise reduction device, and FIG. 4 is a diagram for explaining adaptive control by a controller. In Fig. 1, 1 is the passenger compartment, 2 is the engine, 3 is the engine vibration sensor (rotation speed sensor), and 4 is the engine vibration sensor.
5 represents a vibration sensor, 5 represents a controller, and 6 represents a speaker. In the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

【実用新案登録請求の範囲】 (1) エンジンの回転に同期した基準信号を検出
する手段と、該エンジンを起振源とする車体の振
動を検出する手段と、スピーカと、該基準信号に
基づき該振動検出手段への入力が最小となるよう
に該スピーカの出力を適応制御するコントローラ
とを備え、車室内騒音の定在波の腹となる車体位
置に該スピーカと該スピーカに対向した該振動検
出手段とを設けたことを特徴とする車室内騒音の
低減装置。 (2) 該スピーカの代わりに、制御用アクチユエ
ータとしてシエーカーを用いたことを特徴とする
請求項１に記載の車室内騒音の低減装置。[Claims for Utility Model Registration] (1) A means for detecting a reference signal synchronized with the rotation of an engine, a means for detecting vibrations of a vehicle body caused by the engine, a speaker, and a speaker based on the reference signal. a controller that adaptively controls the output of the speaker so that the input to the vibration detection means is minimized; A vehicle interior noise reduction device comprising: a detection means. (2) The vehicle interior noise reduction device according to claim 1, characterized in that a shearer is used as a control actuator instead of the speaker.
JP1990111220U 1990-10-24 1990-10-24 Vehicle interior noise reduction device Expired - Fee Related JP2564309Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990111220U JP2564309Y2 (en) 1990-10-24 1990-10-24 Vehicle interior noise reduction device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990111220U JP2564309Y2 (en) 1990-10-24 1990-10-24 Vehicle interior noise reduction device

Publications (2)

Publication Number Publication Date
JPH0469253U true JPH0469253U (en) 1992-06-18
JP2564309Y2 JP2564309Y2 (en) 1998-03-09

Family

ID=31858643

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990111220U Expired - Fee Related JP2564309Y2 (en) 1990-10-24 1990-10-24 Vehicle interior noise reduction device

Country Status (1)

Country Link
JP (1) JP2564309Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11242488A (en) * 1998-02-26 1999-09-07 Toshiba Corp Sound insulation device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5857193A (en) * 1981-09-30 1983-04-05 日野自動車株式会社 Noise reducing apparatus for inside of vehicle
JPS63170699A (en) * 1987-01-09 1988-07-14 株式会社　曙ブレ−キ中央技術研究所 Low frequency noise preventor for vehicle
JPH0411542A (en) * 1990-04-28 1992-01-16 Toyoda Gosei Co Ltd Car interior noise reducing device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5857193A (en) * 1981-09-30 1983-04-05 日野自動車株式会社 Noise reducing apparatus for inside of vehicle
JPS63170699A (en) * 1987-01-09 1988-07-14 株式会社　曙ブレ−キ中央技術研究所 Low frequency noise preventor for vehicle
JPH0411542A (en) * 1990-04-28 1992-01-16 Toyoda Gosei Co Ltd Car interior noise reducing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11242488A (en) * 1998-02-26 1999-09-07 Toshiba Corp Sound insulation device

Also Published As

Publication number Publication date
JP2564309Y2 (en) 1998-03-09

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Legal Events

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