JPS57139637A - Top-and-bottom dead point signal compensating method - Google Patents
Top-and-bottom dead point signal compensating methodInfo
- Publication number
- JPS57139637A JPS57139637A JP2426381A JP2426381A JPS57139637A JP S57139637 A JPS57139637 A JP S57139637A JP 2426381 A JP2426381 A JP 2426381A JP 2426381 A JP2426381 A JP 2426381A JP S57139637 A JPS57139637 A JP S57139637A
- Authority
- JP
- Japan
- Prior art keywords
- angle sensor
- signal
- dead point
- reference angle
- bottom dead
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/06—Testing internal-combustion engines by monitoring positions of pistons or cranks
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Engines (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
PURPOSE:To compensate mechanical deviation of reference angle sensor, by delaying an output signal of a reference angle sensor in the neighborhood of top and bottom dead points of an internal combustion engine by a variable delay circuit, and also, by making a strobo discharge tube emit light by the signal. CONSTITUTION:A rotary body having denticulation 7 is attached to a crank shaft 2 of an internal combustion engine, and the surrounding area is provided with a crank angle sensor 8, a reference angle sensor 9 and an index 5. And, outputs of sensors 8 and 9 are put into a variable delay circuit 17 containing a counter 13, and signal of the sensor 9 is delayed by a given time by setting of a digital switch 14 so as to make a strobo discharge tube 6 emit light. And therefore, by changing set value of the digital switch 14 so tht the top dead point position mark and the index 5 coincide with each other, and also by taking the output signal and making it a compensated top dead point position signal to be used as the base for operating cycle of the engine, it is possible to compensate timing error in a short period of time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2426381A JPS57139637A (en) | 1981-02-23 | 1981-02-23 | Top-and-bottom dead point signal compensating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2426381A JPS57139637A (en) | 1981-02-23 | 1981-02-23 | Top-and-bottom dead point signal compensating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57139637A true JPS57139637A (en) | 1982-08-28 |
Family
ID=12133346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2426381A Pending JPS57139637A (en) | 1981-02-23 | 1981-02-23 | Top-and-bottom dead point signal compensating method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57139637A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62267639A (en) * | 1986-04-25 | 1987-11-20 | ゼネラル・モ−タ−ス・コ−ポレ−シヨン | Method of positioning top dead center of engine |
-
1981
- 1981-02-23 JP JP2426381A patent/JPS57139637A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62267639A (en) * | 1986-04-25 | 1987-11-20 | ゼネラル・モ−タ−ス・コ−ポレ−シヨン | Method of positioning top dead center of engine |
| JPH0678967B2 (en) * | 1986-04-25 | 1994-10-05 | ゼネラル・モ−タ−ス・コ−ポレ−シヨン | Positioning method of top dead center of engine |
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