GB2009455A - Economy cruise system for an internal combustion engine - Google Patents
Economy cruise system for an internal combustion engineInfo
- Publication number
- GB2009455A GB2009455A GB7840579A GB7840579A GB2009455A GB 2009455 A GB2009455 A GB 2009455A GB 7840579 A GB7840579 A GB 7840579A GB 7840579 A GB7840579 A GB 7840579A GB 2009455 A GB2009455 A GB 2009455A
- Authority
- GB
- United Kingdom
- Prior art keywords
- response
- cruise
- detector
- signal
- combustion 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 3
- 239000001301 oxygen Substances 0.000 abstract 3
- 229910052760 oxygen Inorganic materials 0.000 abstract 3
- 239000000446 fuel Substances 0.000 abstract 2
- 230000001133 acceleration Effects 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
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
- F02D41/1473—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation method
- F02D41/1475—Regulating the air fuel ratio at a value other than stoichiometry
- F02D41/1476—Biasing of the sensor
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)
- Combined Controls Of Internal Combustion Engines (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
In a system for controlling the air/fuel ratio supplied to an engine in response to the oxygen content of the exhaust gases the ratio is automatically made leaner than stoichiometric, (by biasing an oxygen sensor) when a cruise condition is detected, (by differentiated at 30 the output of a speed sensor 28). A controller 12 determines the duty ratio of a fuel injector in response to a ramp signal produced by integrating at 14 the constant high or low output of a threshold comparator 16, and also in response to engine temperature and M.A.P. in an open loop manner. A "cruise detector" 32 produces a signal when the acceleration or deceleration is less than a prescribed value to bias the oxygen sensor and also to open a by-pass 26 to a catalytic converter 24. When a cruise signal is not present a switch 34 samples the detector 32 at intervals to determine whether it should be. <IMAGE>
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/856,451 US4156413A (en) | 1977-12-01 | 1977-12-01 | Cruise economy system |
| US05/856,452 US4169440A (en) | 1977-12-01 | 1977-12-01 | Cruise economy system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2009455A true GB2009455A (en) | 1979-06-13 |
| GB2009455B GB2009455B (en) | 1982-05-12 |
Family
ID=27127345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7840579A Expired GB2009455B (en) | 1977-12-01 | 1978-10-13 | Economy cruise system for an internal combustion |
Country Status (5)
| Country | Link |
|---|---|
| AU (1) | AU4091478A (en) |
| DE (1) | DE2848310A1 (en) |
| FR (1) | FR2410739A1 (en) |
| GB (1) | GB2009455B (en) |
| IT (1) | IT1100401B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110154084A (en) * | 2018-02-14 | 2019-08-23 | 欧姆龙株式会社 | Sensor unit, control method and recording medium |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2116097B2 (en) * | 1971-04-02 | 1981-01-29 | Bosch Gmbh Robert | Device for regulating the air ratio λ of the fuel-air mixture fed to an internal combustion engine |
-
1978
- 1978-10-13 GB GB7840579A patent/GB2009455B/en not_active Expired
- 1978-10-20 AU AU40914/78A patent/AU4091478A/en active Pending
- 1978-11-07 FR FR7831445A patent/FR2410739A1/en active Pending
- 1978-11-07 DE DE19782848310 patent/DE2848310A1/en not_active Withdrawn
- 1978-11-30 IT IT30359/78A patent/IT1100401B/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110154084A (en) * | 2018-02-14 | 2019-08-23 | 欧姆龙株式会社 | Sensor unit, control method and recording medium |
| US11318627B2 (en) | 2018-02-14 | 2022-05-03 | Omron Corporation | Sensor unit, control method, and recording medium |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2410739A1 (en) | 1979-06-29 |
| DE2848310A1 (en) | 1979-06-07 |
| IT7830359A0 (en) | 1978-11-30 |
| AU4091478A (en) | 1980-04-24 |
| GB2009455B (en) | 1982-05-12 |
| IT1100401B (en) | 1985-09-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |