JPS6473257A - Rotational speed detector for engine - Google Patents
Rotational speed detector for engineInfo
- Publication number
- JPS6473257A JPS6473257A JP23034687A JP23034687A JPS6473257A JP S6473257 A JPS6473257 A JP S6473257A JP 23034687 A JP23034687 A JP 23034687A JP 23034687 A JP23034687 A JP 23034687A JP S6473257 A JPS6473257 A JP S6473257A
- Authority
- JP
- Japan
- Prior art keywords
- time
- rotational speed
- counting
- detection
- interval
- 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
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
PURPOSE:To achieve a higher detection accuracy while reducing the interval of extracting the results of detection, by using a plurality of measuring means to start counting sequentially at an interval time shorter than the time required for one rotation of a gear for detection. CONSTITUTION:A plurality of measuring means 24 start counting sequentially at an interval time shorter than the time required for one rotation of a gear 22 for detection to measure a required time for counting as the counting of each set count value is done. Each time the counting means 24 measure the required time separately, a rotational speed detecting means 25 calculates a rotational speed based on the required time thus obtained and the revolutions of an engine during the period.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23034687A JPS6473257A (en) | 1987-09-14 | 1987-09-14 | Rotational speed detector for engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23034687A JPS6473257A (en) | 1987-09-14 | 1987-09-14 | Rotational speed detector for engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6473257A true JPS6473257A (en) | 1989-03-17 |
Family
ID=16906409
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23034687A Pending JPS6473257A (en) | 1987-09-14 | 1987-09-14 | Rotational speed detector for engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6473257A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5239618A (en) * | 1989-12-20 | 1993-08-24 | Fujitsu Limited | Data processing device with network structure and its learning processing method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6047964A (en) * | 1983-08-26 | 1985-03-15 | Mitsubishi Electric Corp | Car speed detecting apparatus |
-
1987
- 1987-09-14 JP JP23034687A patent/JPS6473257A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6047964A (en) * | 1983-08-26 | 1985-03-15 | Mitsubishi Electric Corp | Car speed detecting apparatus |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5239618A (en) * | 1989-12-20 | 1993-08-24 | Fujitsu Limited | Data processing device with network structure and its learning processing method |
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