ES419752A1 - Control of the composition of the exhaust gas of internal combustion engines - Google Patents
Control of the composition of the exhaust gas of internal combustion enginesInfo
- Publication number
- ES419752A1 ES419752A1 ES419752A ES419752A ES419752A1 ES 419752 A1 ES419752 A1 ES 419752A1 ES 419752 A ES419752 A ES 419752A ES 419752 A ES419752 A ES 419752A ES 419752 A1 ES419752 A1 ES 419752A1
- Authority
- ES
- Spain
- Prior art keywords
- integrator
- exhaust gas
- internal combustion
- output
- control
- 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
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
-
- 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
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
In a system that has an integrator to control the fuel/air ratio supplied to an internal combustion engine in response to an exhaust gas probe, the integrator operates in steps, the duration of which depends on the speed and/or the load on the engine . In the embodiment, one or the other of the two transistors 24, 25 periodically drives according to whether or not the output of probe 12 exceeds a threshold set at 20 to cause a constant rise or fall in the output of integrator 32, 33, 34 during a time determined by a monostable multiple vibrator 36 and at a frequency determined by the motor speed or load pulses that activate 36. During this shutdown period, the integrator output remains constant or changes at a different speed if a resistance 40 (optional) is provided. This outlet adjusts a carburetor or fuel injector. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2251167A DE2251167C3 (en) | 1972-10-19 | 1972-10-19 | Device for exhaust gas detoxification from internal combustion engines |
DE2321721A DE2321721C2 (en) | 1973-04-28 | 1973-04-28 | Device for reducing harmful components of exhaust gas emissions from internal combustion engines |
Publications (1)
Publication Number | Publication Date |
---|---|
ES419752A1 true ES419752A1 (en) | 1976-12-01 |
Family
ID=25763974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES419752A Expired ES419752A1 (en) | 1972-10-19 | 1973-10-18 | Control of the composition of the exhaust gas of internal combustion engines |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5834655B2 (en) |
ES (1) | ES419752A1 (en) |
FR (1) | FR2209046B1 (en) |
GB (1) | GB1446556A (en) |
IT (1) | IT998750B (en) |
SE (1) | SE393161B (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS517334A (en) * | 1974-07-08 | 1976-01-21 | Nissan Motor | Enjinno nenryoseigyosochi |
JPS5844845B2 (en) * | 1975-06-05 | 1983-10-05 | 株式会社デンソー | kuunenhikikanshikinenriyoufunshiyaseigiyosouchi |
DE2554988C2 (en) * | 1975-12-06 | 1985-01-10 | Robert Bosch Gmbh, 7000 Stuttgart | Method for determining the composition of the operating mixture fed to an internal combustion engine or the combustion sequence of the operating mixture and device for carrying out the method |
JPS5281434A (en) * | 1975-12-27 | 1977-07-07 | Nissan Motor Co Ltd | Air fuel ratio controller |
DE2702863C2 (en) * | 1977-01-25 | 1986-06-05 | Robert Bosch Gmbh, 7000 Stuttgart | Method and device for regulating the mixture ratio components of the operating mixture fed to an internal combustion engine |
GB1604227A (en) * | 1977-06-23 | 1981-12-02 | Lucas Industries Ltd | Internal combustion engine fuel control system |
DE2739508C2 (en) * | 1977-09-02 | 1986-01-16 | Robert Bosch Gmbh, 7000 Stuttgart | Device for extreme value control in internal combustion engines |
US4186700A (en) * | 1978-09-01 | 1980-02-05 | Motorola, Inc. | Low leakage integrator for carburetor control |
DE2944834A1 (en) * | 1979-11-07 | 1981-05-27 | Robert Bosch Gmbh, 7000 Stuttgart | METHOD FOR REGULATING THE LAMBDA AIR NUMBER IN A SELF-IGNITION COMBUSTION ENGINE |
JPS59141747A (en) * | 1983-02-02 | 1984-08-14 | Fujitsu Ten Ltd | Air-fuel ratio controlling system |
JPS6111361U (en) * | 1984-06-26 | 1986-01-23 | 株式会社 くろがね工作所 | school chair |
GB0221218D0 (en) * | 2002-09-13 | 2002-10-23 | Delphi Tech Inc | Control method |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1917487A1 (en) * | 1969-04-05 | 1970-10-22 | Bosch Gmbh Robert | Device for controlling the amount of fuel for internal combustion engines |
-
1973
- 1973-10-18 ES ES419752A patent/ES419752A1/en not_active Expired
- 1973-10-18 JP JP11735473A patent/JPS5834655B2/en not_active Expired
- 1973-10-18 FR FR7337253A patent/FR2209046B1/fr not_active Expired
- 1973-10-18 SE SE7314181A patent/SE393161B/en unknown
- 1973-10-18 GB GB4861473A patent/GB1446556A/en not_active Expired
- 1973-10-18 IT IT3025873A patent/IT998750B/en active
Also Published As
Publication number | Publication date |
---|---|
JPS5834655B2 (en) | 1983-07-28 |
IT998750B (en) | 1976-02-20 |
GB1446556A (en) | 1976-08-18 |
FR2209046A1 (en) | 1974-06-28 |
FR2209046B1 (en) | 1976-10-01 |
JPS4973533A (en) | 1974-07-16 |
SE393161B (en) | 1977-05-02 |
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