JPS6348U - - Google Patents
Info
- Publication number
- JPS6348U JPS6348U JP9446586U JP9446586U JPS6348U JP S6348 U JPS6348 U JP S6348U JP 9446586 U JP9446586 U JP 9446586U JP 9446586 U JP9446586 U JP 9446586U JP S6348 U JPS6348 U JP S6348U
- Authority
- JP
- Japan
- Prior art keywords
- sound
- control point
- muffled
- vehicle
- muffled sound
- 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.)
- Pending
Links
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 230000005236 sound signal Effects 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Description
第１図は本考案の実施例を示すブロツク図、第
２図は第１図の主要なブロツクの出力信号波形図
、第３図は制御回路の内部構造を示す回路図、第
４図は本考案に係る車両のこもり音低減制御装置
が適用された車両の上面図、第５図はこもり音周
波数と位相遅進量との関係を示すグラフ、第６図
はこもり音周波数と増幅度との関係を示すグラフ
、第７図及び第８図は主要プログラムの制御フロ
ーチヤート図、第９図は制御点選択手段を手動ス
イツチとした場合のこもり音制御装置のブロツク
図である。
１８……リミツトスイツチ、２０……制御回路
、２０Ａ……コントローラ、２２……スピーカ、
２４……点火コイル。
Fig. 1 is a block diagram showing an embodiment of the present invention, Fig. 2 is an output signal waveform diagram of the main blocks in Fig. 1, Fig. 3 is a circuit diagram showing the internal structure of the control circuit, and Fig. 4 is the main block diagram of the present invention. A top view of a vehicle to which the muffled sound reduction control device of the invention is applied, FIG. 5 is a graph showing the relationship between the muffled sound frequency and the amount of phase retardation, and FIG. 6 is a graph showing the relationship between the muffled sound frequency and the degree of amplification. Graphs showing the relationship, FIGS. 7 and 8 are control flowcharts of the main program, and FIG. 9 is a block diagram of the muffled sound control device when the control point selection means is a manual switch. 18...Limit switch, 20...Control circuit, 20A...Controller, 22...Speaker,
24...Ignition coil.
Claims (1)
発生させて車両走行時に発生するこもり音を制御
点で打ち消す車両のこもり音制御装置において、
こもり音の周波数又は波長を検出するこもり音特
性検出手段と、こもり音を打ち消すための制御点
を選択する制御点選択手段と、前記制御点選択手
段で選択された制御点で前記こもり音に対する付
加音の位相及び増幅度が予め記憶されたこもり音
打消情報記憶手段と、前記付加音信号を前記スピ
ーカへ出力する付加音信号出力手段と、を有する
車両のこもり音制御装置。 (2) 前記制御点選択手段が車両のそれぞれのシ
ートへ埋設され乗員の着座状態を自動的に検出す
るシートスイツチであることを特徴とする前記実
用新案登録請求の範囲第(1)項に記載の車両のこ
もり音制御装置。 (3) 前記制御点選択手段が乗員の有無にかかわ
らず手動で選択できる選択ボタンであることを特
徴とする前記実用新案登録請求の範囲第(1)項に
記載の車両のこもり音制御装置。[Scope of Claim for Utility Model Registration] (1) A muffled sound control device for a vehicle that generates additional sound from a speaker placed in the vehicle interior and cancels muffled sound generated when the vehicle is running at a control point,
muffled sound characteristic detection means for detecting the frequency or wavelength of the muffled sound; control point selection means for selecting a control point for canceling the muffled sound; and addition to the muffled sound at the control point selected by the control point selection means. A muffled sound control device for a vehicle, comprising a muffled sound canceling information storage means in which a sound phase and amplification degree are stored in advance, and an additional sound signal output means for outputting the additional sound signal to the speaker. (2) The utility model registration claim 1 is characterized in that the control point selection means is a seat switch that is embedded in each seat of the vehicle and automatically detects the seating state of the occupant. muffled sound control device for vehicles. (3) The muffled noise control device for a vehicle according to claim 1, wherein the control point selection means is a selection button that can be manually selected regardless of the presence or absence of an occupant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9446586U JPS6348U (en) | 1986-06-20 | 1986-06-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9446586U JPS6348U (en) | 1986-06-20 | 1986-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6348U true JPS6348U (en) | 1988-01-05 |
Family
ID=30957956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9446586U Pending JPS6348U (en) | 1986-06-20 | 1986-06-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6348U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0627971A (en) * | 1992-04-03 | 1994-02-04 | Fuji Heavy Ind Ltd | In-cabin indistinct sound reducing device |
-
1986
- 1986-06-20 JP JP9446586U patent/JPS6348U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0627971A (en) * | 1992-04-03 | 1994-02-04 | Fuji Heavy Ind Ltd | In-cabin indistinct sound reducing device |
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