GB1461766A - Fuel control systems for ic engines - Google Patents
Fuel control systems for ic enginesInfo
- Publication number
- GB1461766A GB1461766A GB223973A GB223973A GB1461766A GB 1461766 A GB1461766 A GB 1461766A GB 223973 A GB223973 A GB 223973A GB 223973 A GB223973 A GB 223973A GB 1461766 A GB1461766 A GB 1461766A
- Authority
- GB
- United Kingdom
- Prior art keywords
- counter
- stable
- mass flow
- contact
- engine
- 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
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
- F02D41/182—Circuit arrangements for generating control signals by measuring intake air flow for the control of a fuel injection device
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
1461766 Automatic control of fuel injection in I C engines LUCAS ELECTRICAL Ltd 9 Jan 1974 [16 Jan 1973] 2239/73 Heading G3N The quantity of fuel injected into an engine is controlled in accordance with the air mass flow into the induction manifold which has been measured during a previous time period using a system employing digital techniques. In the system shown, the injectors are divided into two groups and are controlled by signals from bi-stables 21, 22 respectively. The induction air mass flow is measured by known means 10 to obtain an analogue signal which controls the voltage controlled oscillator 12 to build up a count proportional to the air mass flow in counter 13 for each half engine cycle determined by contact breaker 14, 24. At each operation of the contact breaker the count in 13 is shifted to the memory counter 15, 16 respectively and counter 13 reset after a delay. After a delay imposed by delay 23 bi-stable 21 is set to gate clockpulses into counter 15 to reduce the count to zero when the bi-stable is reset. The set period of the bi-stable provides the injection period which is thus proportional to the mass flow divided by engine speed. The bi-stable 22 and counter 16 are similarly operative for the other groups of injectors under the control of contact 24. In a modification a bi-stable circuit, counter and circuit breaker contact are provided for the individual injectors of an engine, Fig. 3 (not shown).
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB223973A GB1461766A (en) | 1973-01-16 | 1973-01-16 | Fuel control systems for ic engines |
IT4767074A IT1008694B (en) | 1973-01-16 | 1974-01-14 | CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINES |
FR7401844A FR2214045B3 (en) | 1973-01-16 | 1974-01-15 | |
AU64507/74A AU497078B2 (en) | 1973-01-16 | 1974-01-15 | Engine control systems |
DE19742401650 DE2401650A1 (en) | 1973-01-16 | 1974-01-15 | ENGINE CONTROL SYSTEM |
JP780474A JPS49103021A (en) | 1973-01-16 | 1974-01-16 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB223973A GB1461766A (en) | 1973-01-16 | 1973-01-16 | Fuel control systems for ic engines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1461766A true GB1461766A (en) | 1977-01-19 |
Family
ID=9736055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB223973A Expired GB1461766A (en) | 1973-01-16 | 1973-01-16 | Fuel control systems for ic engines |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS49103021A (en) |
AU (1) | AU497078B2 (en) |
DE (1) | DE2401650A1 (en) |
FR (1) | FR2214045B3 (en) |
GB (1) | GB1461766A (en) |
IT (1) | IT1008694B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2551681C2 (en) * | 1975-11-18 | 1986-10-02 | Robert Bosch Gmbh, 7000 Stuttgart | Electrically controlled fuel injection system for internal combustion engines |
DE2824007A1 (en) * | 1978-06-01 | 1979-12-13 | Bosch Gmbh Robert | METHOD AND CIRCUIT ARRANGEMENT FOR GENERATING FUEL METERING PULSES FOR A COMBUSTION ENGINE |
JPH07113340B2 (en) * | 1985-07-18 | 1995-12-06 | 三菱自動車工業 株式会社 | Fuel control device for internal combustion engine |
-
1973
- 1973-01-16 GB GB223973A patent/GB1461766A/en not_active Expired
-
1974
- 1974-01-14 IT IT4767074A patent/IT1008694B/en active
- 1974-01-15 DE DE19742401650 patent/DE2401650A1/en not_active Ceased
- 1974-01-15 FR FR7401844A patent/FR2214045B3/fr not_active Expired
- 1974-01-15 AU AU64507/74A patent/AU497078B2/en not_active Expired
- 1974-01-16 JP JP780474A patent/JPS49103021A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2214045A1 (en) | 1974-08-09 |
JPS49103021A (en) | 1974-09-28 |
AU6450774A (en) | 1975-07-17 |
IT1008694B (en) | 1976-11-30 |
FR2214045B3 (en) | 1979-01-12 |
DE2401650A1 (en) | 1974-07-18 |
AU497078B2 (en) | 1978-11-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PE20 | Patent expired after termination of 20 years |
Effective date: 19940108 |