JPS6287909U - - Google Patents
Info
- Publication number
- JPS6287909U JPS6287909U JP18003785U JP18003785U JPS6287909U JP S6287909 U JPS6287909 U JP S6287909U JP 18003785 U JP18003785 U JP 18003785U JP 18003785 U JP18003785 U JP 18003785U JP S6287909 U JPS6287909 U JP S6287909U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- frequency band
- filter
- tire
- air pressure
- 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
Landscapes
- Measuring Fluid Pressure (AREA)
Description
第１図は本考案の一実施例を示す信号系のブロ
ツク図と本考案を適用した自動車のサスペンシヨ
ン部分の要部を示す断面図を併記しており、第２
図は本考案に使用したセンサからの信号の出力状
況を示す説明図、第３図はタイヤの空気圧変化に
伴なう振動特性図で、同図ａは空気圧適正時、同
図ｂは空気圧不足時、同図ｃは空気圧過多時をそ
れぞれ示している。
１４……タイヤ、１５……センサ、１７，１８
……フイルタ、１９……比較器、２４……示器。
Figure 1 shows a block diagram of a signal system showing one embodiment of the present invention and a sectional view showing the main parts of the suspension part of an automobile to which the invention is applied.
The figure is an explanatory diagram showing the signal output status from the sensor used in this invention, and Figure 3 is a vibration characteristic diagram due to changes in tire air pressure. and c in the same figure respectively show the time when the air pressure is excessive. 14... Tire, 15... Sensor, 17, 18
... Filter, 19 ... Comparator, 24 ... Indicator.
Claims (1)
ンサの信号出力回路にフイルタを介挿し、該フイ
ルタに上記信号中の特定の振動数帯域を抽出させ
、この振動数帯域の出力レベルを比較器を介して
基準レベルと比較させ、その判定信号を表示器へ
出力させるようにしたことを特徴とするタイヤの
空気圧検出装置。 A filter is inserted into the signal output circuit of a sensor that detects vibrations when the tire runs on a road surface, the filter extracts a specific frequency band from the signal, and the output level of this frequency band is measured via a comparator. A tire air pressure detection device characterized in that it compares it with a reference level and outputs a judgment signal to a display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18003785U JPS6287909U (en) | 1985-11-22 | 1985-11-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18003785U JPS6287909U (en) | 1985-11-22 | 1985-11-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6287909U true JPS6287909U (en) | 1987-06-05 |
Family
ID=31123627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18003785U Pending JPS6287909U (en) | 1985-11-22 | 1985-11-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6287909U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993010431A1 (en) * | 1991-11-11 | 1993-05-27 | Nippondenso Co., Ltd. | Tire pneumatic pressure sensor |
-
1985
- 1985-11-22 JP JP18003785U patent/JPS6287909U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993010431A1 (en) * | 1991-11-11 | 1993-05-27 | Nippondenso Co., Ltd. | Tire pneumatic pressure sensor |
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