GB1525493A - Angular coder for encoding the crankshaft angle of an internal combustion engine - Google Patents
Angular coder for encoding the crankshaft angle of an internal combustion engineInfo
- Publication number
- GB1525493A GB1525493A GB43070/75A GB4307075A GB1525493A GB 1525493 A GB1525493 A GB 1525493A GB 43070/75 A GB43070/75 A GB 43070/75A GB 4307075 A GB4307075 A GB 4307075A GB 1525493 A GB1525493 A GB 1525493A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pulse train
- frequency
- transistor
- pulse
- encoding
- 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.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/155—Analogue data processing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Electrical Control Of Ignition Timing (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
1525493 Frequency detectors; pulse frequency changing DUCELLIER ET CIE 21 Oct 1975 [24 Oct 1974] 43070/75 Headings H3A and H3T [Also in Division G1] In a shaft angular encoder (see Division G1) a tachometric generator 4, in use, receives a first pulse train at a transistor 28 and through a pair of transistors 18, 25 coupled by a filtering circuit 21, 23, 24 produces a constant current output which is an analogue of the frequency of the pulse train. The output is fed to an oscillator stage 5 wherein a capacitor 7 is periodically charged and discharged to provide a second pulse train at the output of the oscillator stage 5. The values of the circuitry of the oscillator stage 5 are such that the frequency of the second pulse train is higher than and a multiple of the first pulse train. As shown the first base 13 of transistor 6 is utilized in the pulse shaping circuit. Alternatively the other base of transistor 6 may be used (Fig, 3, not shown). In a further embodiment (Fig. 4, not shown) pulses are taken directly from the capacitor 7 and amplified.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7435693A FR2288873A1 (en) | 1974-10-24 | 1974-10-24 | ANGULAR ENCODER FOR CONTROL OF AN IGNITION DEVICE, ESPECIALLY FOR AUTOMOTIVE VEHICLES WITH INTERNAL COMBUSTION ENGINES |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1525493A true GB1525493A (en) | 1978-09-20 |
Family
ID=9144406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB43070/75A Expired GB1525493A (en) | 1974-10-24 | 1975-10-21 | Angular coder for encoding the crankshaft angle of an internal combustion engine |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5162751A (en) |
| DE (1) | DE2547525A1 (en) |
| ES (1) | ES440260A1 (en) |
| FR (1) | FR2288873A1 (en) |
| GB (1) | GB1525493A (en) |
| IT (1) | IT1042472B (en) |
| NL (1) | NL7511738A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2731746C2 (en) * | 1977-07-14 | 1985-08-22 | Robert Bosch Gmbh, 7000 Stuttgart | Ignition device for an internal combustion engine |
-
1974
- 1974-10-24 FR FR7435693A patent/FR2288873A1/en active Granted
-
1975
- 1975-08-14 ES ES440260A patent/ES440260A1/en not_active Expired
- 1975-09-11 IT IT27142/75A patent/IT1042472B/en active
- 1975-09-18 JP JP50113074A patent/JPS5162751A/ja active Pending
- 1975-10-06 NL NL7511738A patent/NL7511738A/en unknown
- 1975-10-21 GB GB43070/75A patent/GB1525493A/en not_active Expired
- 1975-10-23 DE DE19752547525 patent/DE2547525A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2547525A1 (en) | 1976-05-06 |
| FR2288873A1 (en) | 1976-05-21 |
| IT1042472B (en) | 1980-01-30 |
| FR2288873B1 (en) | 1980-03-07 |
| ES440260A1 (en) | 1977-03-01 |
| JPS5162751A (en) | 1976-05-31 |
| NL7511738A (en) | 1976-04-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |