JPS63123772U - - Google Patents
Info
- Publication number
- JPS63123772U JPS63123772U JP1482687U JP1482687U JPS63123772U JP S63123772 U JPS63123772 U JP S63123772U JP 1482687 U JP1482687 U JP 1482687U JP 1482687 U JP1482687 U JP 1482687U JP S63123772 U JPS63123772 U JP S63123772U
- Authority
- JP
- Japan
- Prior art keywords
- period
- crank angle
- unit crank
- measuring
- detecting
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Description
第１図は本考案の構成を示す機能ブロツク図、
第２図は単位クランク角度信号の周期の変化の様
子を示す図、第３図は本考案の一実施例を示すシ
ステム図、第４図は同上実施例における信号波形
図、第５図はマイクロコンピユータによる場合の
フローチヤート、第６図は他の実施例について説
明するための線図である。
２……回転体、３……磁気センサ、４……波形
整形回路、５……周期計測器（周期計測ロジツク
）、６……極大点検出器（極大点検出ロジツク）
。
Figure 1 is a functional block diagram showing the configuration of the present invention.
Fig. 2 is a diagram showing changes in the cycle of a unit crank angle signal, Fig. 3 is a system diagram showing an embodiment of the present invention, Fig. 4 is a signal waveform diagram in the same embodiment, and Fig. 5 is a micro A flowchart in the case of using a computer, FIG. 6 is a diagram for explaining another embodiment. 2...Rotating body, 3...Magnetic sensor, 4...Waveform shaping circuit, 5...Period measuring device (periodic measurement logic), 6...Maximum point detector (maximum point detection logic)
.
Claims (1)
クランク角度毎に信号を発生する単位クランク角
度信号発生手段と、該単位クランク角度信号発生
手段からの信号入力の周期を計測する周期計測手
段と、該周期計測手段により計測された周期が極
大となる点を検出したこれを上死点として検出す
る極大点検出手段とを含んで構成されることを特
徴とする内燃機関の上死点検出装置。 unit crank angle signal generating means for generating a signal for each unit crank angle in synchronization with the rotation of the crankshaft of the engine; a period measuring means for measuring the period of signal input from the unit crank angle signal generating means; and the period. What is claimed is: 1. A top dead center detection device for an internal combustion engine, comprising: maximum point detection means for detecting a point at which the period measured by a measuring means has a maximum and detecting this as a top dead center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1482687U JPS63123772U (en) | 1987-02-05 | 1987-02-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1482687U JPS63123772U (en) | 1987-02-05 | 1987-02-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63123772U true JPS63123772U (en) | 1988-08-11 |
Family
ID=30805181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1482687U Pending JPS63123772U (en) | 1987-02-05 | 1987-02-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63123772U (en) |
-
1987
- 1987-02-05 JP JP1482687U patent/JPS63123772U/ja active Pending
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