FR2263384A1 - Correction cct. for engine fuel injection system - varies duration of injection time according to exhaust oxygen content - Google Patents
Correction cct. for engine fuel injection system - varies duration of injection time according to exhaust oxygen contentInfo
- Publication number
- FR2263384A1 FR2263384A1 FR7407606A FR7407606A FR2263384A1 FR 2263384 A1 FR2263384 A1 FR 2263384A1 FR 7407606 A FR7407606 A FR 7407606A FR 7407606 A FR7407606 A FR 7407606A FR 2263384 A1 FR2263384 A1 FR 2263384A1
- Authority
- FR
- France
- Prior art keywords
- oxygen content
- time according
- correction
- exhaust oxygen
- cct
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1477—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation circuit or part of it,(e.g. comparator, PI regulator, output)
- F02D41/1482—Integrator, i.e. variable slope
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2432—Methods of calibration
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
A basic fuel injection control circuit consists of three electronic counters which count N1, N2 and N3 pulses respectively. The binary word M is applied to the first computer (1). The pulses indicated by H are counted successively on the counters (1) and (2). When the counters (1) and (2) have completed counting, a pulse (5) is supplied to the counter (3) which consists of two elements (6) and (7) and the signal to terminate the injection period is delivered through the gate (4). This signal can be modified by installing a correction circuit between the terminals (K and K'). This correction circuit can modify the injection time according to any additional variable such as exhaust oxygen content.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7407606A FR2263384A1 (en) | 1974-03-06 | 1974-03-06 | Correction cct. for engine fuel injection system - varies duration of injection time according to exhaust oxygen content |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7407606A FR2263384A1 (en) | 1974-03-06 | 1974-03-06 | Correction cct. for engine fuel injection system - varies duration of injection time according to exhaust oxygen content |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2263384A1 true FR2263384A1 (en) | 1975-10-03 |
FR2263384B1 FR2263384B1 (en) | 1977-10-07 |
Family
ID=9135922
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7407606A Granted FR2263384A1 (en) | 1974-03-06 | 1974-03-06 | Correction cct. for engine fuel injection system - varies duration of injection time according to exhaust oxygen content |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2263384A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2467985A1 (en) * | 1979-10-19 | 1981-04-30 | Psa Gie Rech Dev | ELECTRONIC CONTROLLER FOR CONTROLLING THE AIR / FUEL RATIO OF THE MIXTURE SUPPLIED TO AN INTERNAL COMBUSTION ENGINE |
EP0418713A2 (en) * | 1989-09-20 | 1991-03-27 | HJS FAHRZEUGTEILE-FABRIK GmbH & CO. | Conversion kit for a controlled catalyst |
EP0427087A2 (en) * | 1989-11-04 | 1991-05-15 | Gutmann Messtechnik Ag | Conversion kit for Otto engines |
-
1974
- 1974-03-06 FR FR7407606A patent/FR2263384A1/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2467985A1 (en) * | 1979-10-19 | 1981-04-30 | Psa Gie Rech Dev | ELECTRONIC CONTROLLER FOR CONTROLLING THE AIR / FUEL RATIO OF THE MIXTURE SUPPLIED TO AN INTERNAL COMBUSTION ENGINE |
EP0028174A1 (en) * | 1979-10-19 | 1981-05-06 | Psa Etudes Et Recherches | Electronic control unit to regulate the air-fuel ratio of the mixture fed to an internal-combustion engine |
EP0418713A2 (en) * | 1989-09-20 | 1991-03-27 | HJS FAHRZEUGTEILE-FABRIK GmbH & CO. | Conversion kit for a controlled catalyst |
EP0418713A3 (en) * | 1989-09-20 | 1991-11-06 | Hjs Fahrzeugteile-Fabrik Gmbh & Co. | Conversion kit for a controlled catalyst |
EP0427087A2 (en) * | 1989-11-04 | 1991-05-15 | Gutmann Messtechnik Ag | Conversion kit for Otto engines |
EP0427087A3 (en) * | 1989-11-04 | 1991-11-06 | Gutmann Messtechnik Ag | Conversion kit for otto engines |
Also Published As
Publication number | Publication date |
---|---|
FR2263384B1 (en) | 1977-10-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |