GB1449917A - Regulators for internal combustion engines - Google Patents
Regulators for internal combustion enginesInfo
- Publication number
- GB1449917A GB1449917A GB149174A GB149174A GB1449917A GB 1449917 A GB1449917 A GB 1449917A GB 149174 A GB149174 A GB 149174A GB 149174 A GB149174 A GB 149174A GB 1449917 A GB1449917 A GB 1449917A
- Authority
- GB
- United Kingdom
- Prior art keywords
- output
- fed
- bridge
- probe
- ratio
- 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
- F02D41/14—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)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
1449917 Automatic control of I C engines ROBERT BOSCH GmbH 11 Jan 1974 [12 Jan 1973] 01491/74 Heading G3R In a system for controlling the ratio of fuel and air fed to an I.C. engine in response to the exhaust gas composition, the latter is sensed by a probe 1 in the engine exhaust producing a signal which is fed to one arm of a bridge circuit, a second arm of the bridge receives a reference signal, and an operational amplifier 15 has its inverting and non- inverting inputs connected across the diagonal of the bridge and produces a control signal to adjust the fuel: air ratio. As shown the probe output is fed to a transistor 2 connected as an emitterfollower. A transistor 6 receives a reference voltage which is derived from a Zener diode 11 and adjustable by means of resistor 9. The transistors 2, 6 are of opposite conductivity types and are connected to temperature compensate each other. The other arms of the bridge are formed by resistors 13, 14. If the probe output is above or below the reference voltage, the output of the amplifier 15 becomes substantially equal to the potential of the supply lead 3 or 10 respectively. The voltage range of this output is reduced by a circuit using transistors 21, 22 before being fed to an integrating amplifier 29. The time constant of the integrator is adjustable by a switch 27, and the integrator output forms the ratio control signal.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2301353A DE2301353A1 (en) | 1973-01-12 | 1973-01-12 | CONTROL DEVICE FOR EXHAUST GAS DETOXIFICATION FROM COMBUSTION MACHINERY |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1449917A true GB1449917A (en) | 1976-09-15 |
Family
ID=5868812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB149174A Expired GB1449917A (en) | 1973-01-12 | 1974-01-11 | Regulators for internal combustion engines |
Country Status (10)
Country | Link |
---|---|
US (1) | US3903853A (en) |
JP (1) | JPS5749857B2 (en) |
BE (1) | BE809667A (en) |
DE (1) | DE2301353A1 (en) |
ES (1) | ES422211A1 (en) |
FR (1) | FR2214047B1 (en) |
GB (1) | GB1449917A (en) |
IT (1) | IT1006850B (en) |
NL (1) | NL7400417A (en) |
SE (1) | SE389538B (en) |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2422938C2 (en) * | 1974-05-11 | 1982-07-08 | Robert Bosch Gmbh, 7000 Stuttgart | Switching device for the controlled addition of additional air to the exhaust gas of an internal combustion engine |
JPS5534283Y2 (en) * | 1974-06-17 | 1980-08-14 | ||
JPS5228934B2 (en) * | 1974-11-01 | 1977-07-29 | ||
US3948228A (en) * | 1974-11-06 | 1976-04-06 | The Bendix Corporation | Exhaust gas sensor operational detection system |
GB1518763A (en) * | 1975-03-07 | 1978-07-26 | Nissan Motor | Closed loop air fuel ratio control system using exhaust composition sensor |
JPS51104131A (en) * | 1975-03-10 | 1976-09-14 | Hitachi Ltd | Enjinno kunenhiseigyosochi |
SE411784B (en) * | 1975-04-18 | 1980-02-04 | Bosch Gmbh Robert | SET AND DEVICE FOR DETERMINING THE DURATION OF FUEL SUPPLY PULSE |
US4178884A (en) * | 1975-06-05 | 1979-12-18 | Nippondenso Co., Ltd. | Method and system to control the mixture air-to-fuel ratio |
JPS5950862B2 (en) * | 1975-08-05 | 1984-12-11 | 日産自動車株式会社 | Air fuel ratio control device |
US4210106A (en) * | 1975-10-13 | 1980-07-01 | Robert Bosch Gmbh | Method and apparatus for regulating a combustible mixture |
JPS5248729A (en) * | 1975-10-16 | 1977-04-19 | Nissan Motor Co Ltd | Air-fuel ratio controller |
JPS52115927A (en) * | 1975-11-24 | 1977-09-28 | Nippon Denso Co Ltd | Air fuel ratio feed back controller for internal combustion engine |
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 |
JPS5834660B2 (en) * | 1975-12-25 | 1983-07-28 | 日産自動車株式会社 | Kuunenpiseigiyosouchi |
US4156404A (en) * | 1975-12-30 | 1979-05-29 | Nissan Motor Company, Limited | Electronic closed loop air-fuel ratio control system |
GB1572043A (en) * | 1976-02-19 | 1980-07-23 | Bosch Gmbh Robert | Method and system for decreasing the injurious constituents in the exhaust gases of internal combustion engines |
JPS5819319Y2 (en) * | 1976-03-23 | 1983-04-20 | 株式会社デンソー | Air-fuel ratio feedback mixture control device |
JPS52145223U (en) * | 1976-04-30 | 1977-11-04 | ||
JPS52154930A (en) * | 1976-05-22 | 1977-12-23 | Bosch Gmbh Robert | Device for controlling fuellair ratio of mixture for internal combustion engine |
JPS586052B2 (en) * | 1976-09-06 | 1983-02-02 | 日産自動車株式会社 | Air fuel ratio control device |
JPS5395431A (en) * | 1977-02-01 | 1978-08-21 | Toyota Motor Corp | Trouble alarm device for air fuel ratio detector |
US4350130A (en) * | 1980-08-27 | 1982-09-21 | Ford Motor Company | Air fuel mixture control system and method |
US4671243A (en) * | 1986-02-28 | 1987-06-09 | Motorola, Inc. | Oxygen sensor fault detection and response system |
JPS63162768U (en) * | 1987-04-15 | 1988-10-24 | ||
JP2964088B2 (en) * | 1989-03-31 | 1999-10-18 | トッパン・フォームズ株式会社 | Continuous paper stacker |
JPH04321740A (en) * | 1991-04-19 | 1992-11-11 | Mitsubishi Electric Corp | Engine air fuel ratio control device |
US5539638A (en) * | 1993-08-05 | 1996-07-23 | Pavilion Technologies, Inc. | Virtual emissions monitor for automobile |
US5386373A (en) * | 1993-08-05 | 1995-01-31 | Pavilion Technologies, Inc. | Virtual continuous emission monitoring system with sensor validation |
US5522250A (en) * | 1995-04-06 | 1996-06-04 | Ford Motor Company | Aged exhaust gas oxygen sensor simulator |
US5970426A (en) * | 1995-09-22 | 1999-10-19 | Rosemount Analytical Inc. | Emission monitoring system |
US5980728A (en) * | 1996-09-24 | 1999-11-09 | Rosemont Analytical Inc. | Diagnostic method and apparatus for solid electrolyte gas analyzer |
US7805236B2 (en) * | 2008-01-29 | 2010-09-28 | Stephen Mullen | Apparatus and method for adjusting the performance of an internal combustion engine |
WO2013130744A1 (en) * | 2012-02-28 | 2013-09-06 | Wayne State University | Using ion current signal for engine performance and emissions measuring techniques and methods for doing the same |
WO2014052738A1 (en) * | 2012-09-28 | 2014-04-03 | Wayne State University | Ion current use for combustion resonance detection, reduction and engine control |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3624493A (en) * | 1970-02-24 | 1971-11-30 | Forbro Design Corp | Regulated power supply employing integrated circuits |
US3630072A (en) * | 1970-04-30 | 1971-12-28 | Mobil Oil Corp | Hydrocarbon emissions computer |
DE2204192C3 (en) * | 1972-01-29 | 1979-03-22 | Robert Bosch Gmbh, 7000 Stuttgart | Device for improving the exhaust gases of a carburetor internal combustion engine |
DE2206276C3 (en) * | 1972-02-10 | 1981-01-15 | Robert Bosch Gmbh, 7000 Stuttgart | Method and device for reducing harmful components of exhaust gas emissions from internal combustion engines |
US3815561A (en) * | 1972-09-14 | 1974-06-11 | Bendix Corp | Closed loop engine control system |
-
1973
- 1973-01-12 DE DE2301353A patent/DE2301353A1/en not_active Ceased
- 1973-12-13 US US424621A patent/US3903853A/en not_active Expired - Lifetime
- 1973-12-20 FR FR7345860A patent/FR2214047B1/fr not_active Expired
-
1974
- 1974-01-10 IT IT19279/74A patent/IT1006850B/en active
- 1974-01-11 SE SE7400371A patent/SE389538B/en unknown
- 1974-01-11 GB GB149174A patent/GB1449917A/en not_active Expired
- 1974-01-11 BE BE139747A patent/BE809667A/en unknown
- 1974-01-11 ES ES422211A patent/ES422211A1/en not_active Expired
- 1974-01-11 NL NL7400417A patent/NL7400417A/xx not_active Application Discontinuation
- 1974-01-11 JP JP49006505A patent/JPS5749857B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2214047A1 (en) | 1974-08-09 |
US3903853A (en) | 1975-09-09 |
ES422211A1 (en) | 1976-04-16 |
IT1006850B (en) | 1976-10-20 |
JPS5749857B2 (en) | 1982-10-25 |
NL7400417A (en) | 1974-07-16 |
SE389538B (en) | 1976-11-08 |
FR2214047B1 (en) | 1976-10-08 |
JPS49109731A (en) | 1974-10-18 |
BE809667A (en) | 1974-05-02 |
DE2301353A1 (en) | 1974-07-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |