FR2396979A1 - Ignition advance measurement on electronic ignition system - involves microprocessor controlling engine speed simulation and providing output indication - Google Patents
Ignition advance measurement on electronic ignition system - involves microprocessor controlling engine speed simulation and providing output indicationInfo
- Publication number
- FR2396979A1 FR2396979A1 FR7721190A FR7721190A FR2396979A1 FR 2396979 A1 FR2396979 A1 FR 2396979A1 FR 7721190 A FR7721190 A FR 7721190A FR 7721190 A FR7721190 A FR 7721190A FR 2396979 A1 FR2396979 A1 FR 2396979A1
- Authority
- FR
- France
- Prior art keywords
- engine speed
- speed simulation
- output
- providing output
- output indication
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
- G01R25/08—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents by counting of standard pulses
-
- 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
- F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electrical Control Of Ignition Timing (AREA)
Abstract
An ignition system for an engine is tested for ignition advance by measurement of angular shift between two periodic pulses. A continuous train of pulses is generated (1) and controlled (2) by a digital signal. This circuit drives divider (31) and counter(41). The divider output is applied to counter (32) followed by decoder (33). The first counter (41) output is decoded (91) to provide unit (23) and ten (22) outputs with fractions of degree on another output (20). Microprocessor controls engine speed simulation by controlling (2) pulse generator. Decoder (91) output is processed for indication using electroluminescent diodes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7721190A FR2396979A1 (en) | 1977-07-08 | 1977-07-08 | Ignition advance measurement on electronic ignition system - involves microprocessor controlling engine speed simulation and providing output indication |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7721190A FR2396979A1 (en) | 1977-07-08 | 1977-07-08 | Ignition advance measurement on electronic ignition system - involves microprocessor controlling engine speed simulation and providing output indication |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2396979A1 true FR2396979A1 (en) | 1979-02-02 |
FR2396979B1 FR2396979B1 (en) | 1980-03-14 |
Family
ID=9193180
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7721190A Granted FR2396979A1 (en) | 1977-07-08 | 1977-07-08 | Ignition advance measurement on electronic ignition system - involves microprocessor controlling engine speed simulation and providing output indication |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2396979A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0043407A2 (en) * | 1980-07-04 | 1982-01-13 | Deutsche ITT Industries GmbH | Arrangement for the digital measuring of phase difference |
-
1977
- 1977-07-08 FR FR7721190A patent/FR2396979A1/en active Granted
Non-Patent Citations (1)
Title |
---|
EXBK/76 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0043407A2 (en) * | 1980-07-04 | 1982-01-13 | Deutsche ITT Industries GmbH | Arrangement for the digital measuring of phase difference |
EP0043407A3 (en) * | 1980-07-04 | 1982-02-17 | Deutsche Itt Industries Gmbh | Arrangement for the digital measuring of phase difference, its use in a synchronisation circuit and such a synchronisation circuit |
Also Published As
Publication number | Publication date |
---|---|
FR2396979B1 (en) | 1980-03-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |