JPS61193310U - - Google Patents
Info
- Publication number
- JPS61193310U JPS61193310U JP7570985U JP7570985U JPS61193310U JP S61193310 U JPS61193310 U JP S61193310U JP 7570985 U JP7570985 U JP 7570985U JP 7570985 U JP7570985 U JP 7570985U JP S61193310 U JPS61193310 U JP S61193310U
- Authority
- JP
- Japan
- Prior art keywords
- converter
- input
- throttle valve
- combustion engine
- internal combustion
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 238000004092 self-diagnosis Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は本考案による内燃機関のスロツトルバ
ルブ開度検出回路の一実施例を示す回路図、第２
図は自己診断手段のフローチヤート、第３図は内
燃機関のスロツトルバルブ開度検出回路の従来例
を示す回路図である。
１…センサ部、２…制御装置、３…Ａ／Ｄ変換
器、４…制御部、５…自己診断手段、ＶＲ…スロ
ツトルバルブに連動する可変抵抗器、Ｒａ…入力
抵抗、Ｒｘ…接触抵抗。
Fig. 1 is a circuit diagram showing an embodiment of the throttle valve opening detection circuit for an internal combustion engine according to the present invention;
The figure is a flowchart of the self-diagnosis means, and FIG. 3 is a circuit diagram showing a conventional example of a throttle valve opening detection circuit for an internal combustion engine. DESCRIPTION OF SYMBOLS 1...Sensor part, 2...Control device, 3...A/D converter, 4...Control unit, 5...Self-diagnosis means, VR...Variable resistor linked to throttle valve, Ra...Input resistance, Rx...Contact resistance .
Claims (1)
摺動接触式の可変抵抗器と、この可変抵抗器によ
つて分圧された電圧をデジタル化するＡ／Ｄ変換
器と、このＡ／Ｄ変換器の入力側に並列に挿入さ
れた入力抵抗とを有する内燃機関のスロツトルバ
ルブ開度検出回路において、上記入力抵抗を上記
Ａ／Ｄ変換器の入力側と電源電位側との間に接続
すると共に、上記Ａ／Ｄ変換器の入力側電圧が電
源電圧とほぼ等しいときに上記Ａ／Ｄ変換器の入
力信号経路における断線等の故障を検知する自己
診断手段を設けたことを特徴とする内燃機関のス
ロツトルバルブ開度検出回路。 A sliding contact type variable resistor linked to a throttle valve of an internal combustion engine, an A/D converter that digitizes the voltage divided by the variable resistor, and this A/D converter. In the throttle valve opening detection circuit for an internal combustion engine, the input resistor is connected between the input side of the A/D converter and the power supply potential side, and the input resistor is connected in parallel to the input side of the A/D converter. , an internal combustion engine comprising self-diagnosis means for detecting a failure such as a disconnection in the input signal path of the A/D converter when the input side voltage of the A/D converter is approximately equal to the power supply voltage. throttle valve opening detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7570985U JPS61193310U (en) | 1985-05-23 | 1985-05-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7570985U JPS61193310U (en) | 1985-05-23 | 1985-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61193310U true JPS61193310U (en) | 1986-12-02 |
Family
ID=30617180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7570985U Pending JPS61193310U (en) | 1985-05-23 | 1985-05-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61193310U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61195368A (en) * | 1985-02-26 | 1986-08-29 | Toyoda Autom Loom Works Ltd | Wire breaking detecting device |
-
1985
- 1985-05-23 JP JP7570985U patent/JPS61193310U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61195368A (en) * | 1985-02-26 | 1986-08-29 | Toyoda Autom Loom Works Ltd | Wire breaking detecting device |
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