JPH0312132U - - Google Patents
Info
- Publication number
- JPH0312132U JPH0312132U JP7185989U JP7185989U JPH0312132U JP H0312132 U JPH0312132 U JP H0312132U JP 7185989 U JP7185989 U JP 7185989U JP 7185989 U JP7185989 U JP 7185989U JP H0312132 U JPH0312132 U JP H0312132U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- integrating
- outputs
- output
- switching circuit
- 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
Links
- 239000007788 liquid Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 2
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
Description
第１図はこの考案に係る車両用液面計の一実施
例を示す回路図、第２図は車両用液面計の動作を
説明する動作説明図、第３図は従来の車両用液面
計の一例を示す回路図である。
１…液面位センサ、５…表示器、６…第１の積
分回路、７…第２の積分回路、９…イグニツシヨ
ンスイツチ、１０…メモリ、１１…減衰器、１２
…比較回路、１３…切換回路。
Figure 1 is a circuit diagram showing an embodiment of the vehicle liquid level gauge according to this invention, Figure 2 is an operation explanatory diagram explaining the operation of the vehicle liquid level gauge, and Figure 3 is a conventional vehicle liquid level gauge. FIG. 2 is a circuit diagram showing an example of a meter. DESCRIPTION OF SYMBOLS 1...Liquid level sensor, 5...Display device, 6...First integration circuit, 7...Second integration circuit, 9...Ignition switch, 10...Memory, 11...Attenuator, 12
...Comparison circuit, 13...Switching circuit.
Claims (1)
定の時定数で積分する第１の積分回路６と、この
第１の積分回路に並列接続され、かつ上記第１の
積分回路の時定数よりも小さな時定数で積分する
第２の積分回路７と、これら第１および第２の積
分回路の出力を切換えて択一的に出力する切換回
路１３と、上記液面位センサ出力をイグニツシヨ
ンスイツチ９の投入時に記憶するメモリ１０と、
このメモリの記憶データの信号レベルを低下させ
る減衰器１１と、この減衰器からの出力信号を基
準値として上記第２の積分回路の積分出力と比較
し、上記基準値よりも積分出力が上回つたときに
上記第１の積分回路と上記切換回路とを接続させ
る切換信号を出力する比較回路１２と、上記切換
回路からの出力に基づいて表示を行う表示器５と
を備えた車両用液面計。 A liquid level sensor 1, a first integrating circuit 6 that integrates the liquid level sensor output with a predetermined time constant, and a time constant of the first integrating circuit connected in parallel to the first integrating circuit. a second integrating circuit 7 that integrates with a time constant smaller than 1, a switching circuit 13 that selectively outputs the outputs of the first and second integrating circuits, and a switching circuit 13 that selectively outputs the outputs of the first and second integrating circuits; a memory 10 for storing information when the switch 9 is turned on;
An attenuator 11 lowers the signal level of data stored in this memory, and an output signal from this attenuator is used as a reference value and compared with the integral output of the second integrating circuit, and the integral output exceeds the reference value. a comparator circuit 12 that outputs a switching signal to connect the first integrating circuit and the switching circuit when the switching circuit reaches the same level, and an indicator 5 that displays based on the output from the switching circuit. Total.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7185989U JPH0637297Y2 (en) | 1989-06-20 | 1989-06-20 | Liquid level gauge for vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7185989U JPH0637297Y2 (en) | 1989-06-20 | 1989-06-20 | Liquid level gauge for vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0312132U true JPH0312132U (en) | 1991-02-07 |
| JPH0637297Y2 JPH0637297Y2 (en) | 1994-09-28 |
Family
ID=31609270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7185989U Expired - Lifetime JPH0637297Y2 (en) | 1989-06-20 | 1989-06-20 | Liquid level gauge for vehicles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0637297Y2 (en) |
-
1989
- 1989-06-20 JP JP7185989U patent/JPH0637297Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0637297Y2 (en) | 1994-09-28 |
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