GB1338745A - Fuel control system for internal combustion engines - Google Patents

Fuel control system for internal combustion engines

Info

Publication number
GB1338745A
GB1338745A GB3435472A GB3435472A GB1338745A GB 1338745 A GB1338745 A GB 1338745A GB 3435472 A GB3435472 A GB 3435472A GB 3435472 A GB3435472 A GB 3435472A GB 1338745 A GB1338745 A GB 1338745A
Authority
GB
United Kingdom
Prior art keywords
engine
signal
switch
cold start
input
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
Application number
GB3435472A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bendix Corp
Original Assignee
Bendix Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bendix Corp filed Critical Bendix Corp
Publication of GB1338745A publication Critical patent/GB1338745A/en
Expired legal-status Critical Current

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
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
    • F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
    • F02D41/064—Introducing corrections for particular operating conditions for engine starting or warming up for starting at cold start

Abstract

1338745 Electrically controlled fuel injection systems BENDIX CORP 21 July 1972 [10 Sept 1971] 34354/72 Heading G1N In an I.C. engine, electrically controlled fuel injection system, a cold start auxiliary circuit is provided in which a signal, representative of the engine temperature when the ignition is switched on but before the engine is started, is initialled stored, and, when the engine is cranked at starting, the stored signal is discharged, the time taken for the stored signal to discharge to a reference level determining the duration of a cold start signal which is initiated when cranking is initiated. The cold start signal is provided to energize injector valve means. As shown in Fig.1, the engine is provided with an electrical system having a three-position switch 38 whose positions correspond to OFF, RUN in which the circuitry is energized by a battery 36, and CRANK in which the starter motor is energized. The engine is provided with an intermittent fuel injection system of the type having a computer 10 triggered by a timing pickup 16 to provide upon each triggering, a pair of injection valve opening pulses, the first pulse having a duration dependent upon intake manifold pressure (sensor 12) and the second pulse having a duration dependent upon the duration of the first pulse and upon engine temperature (thermistor 14), Fig.2 (not shown). The cold start auxiliary circuit 250, Fig.3, has an input A connected to the thermistor 14 and an input C connected to the CRANK contact of switch 38. Before the engine is started the switch is turned to its RUN position and the circuitry is energized so that the input A receives a temperature dependent signal which is stored in a capacitor 206. When the switch is subsequently moved to the CRANK position to start the engine, the signal at input C causes a bi-stable switch 222 to be triggered. Consequent of this, a cold start signal is initiated at terminal 266, and the charge on capacitor 206 is drained so that the voltage at the collector of transistor 240 decays. This voltage is applied to the control electrode of a second bi-stable switch 238 which conducts when the voltage at its control electrode decays to a reference valve. Upon conduction of switch 238, the cold start signal at terminal 266 is terminated.
GB3435472A 1971-09-10 1972-07-21 Fuel control system for internal combustion engines Expired GB1338745A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17939071A 1971-09-10 1971-09-10

Publications (1)

Publication Number Publication Date
GB1338745A true GB1338745A (en) 1973-11-28

Family

ID=22656401

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3435472A Expired GB1338745A (en) 1971-09-10 1972-07-21 Fuel control system for internal combustion engines

Country Status (8)

Country Link
US (1) US3792693A (en)
JP (1) JPS503452B2 (en)
AU (1) AU459594B2 (en)
CA (1) CA949167A (en)
DE (1) DE2237481C3 (en)
FR (1) FR2149234A5 (en)
GB (1) GB1338745A (en)
IT (1) IT967303B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112904372A (en) * 2021-04-22 2021-06-04 电子科技大学 Auxiliary satellite navigation system and positioning method thereof

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4180020A (en) * 1973-09-26 1979-12-25 The Bendix Corporation Pulse smoothing circuit for an electronic fuel control system
DE2410090C2 (en) * 1974-03-02 1986-07-31 Robert Bosch Gmbh, 7000 Stuttgart Switching device for the hot start of internal combustion engines with electronically controlled fuel injection
US3931808A (en) * 1974-12-23 1976-01-13 The Bendix Corporation Altitude compensation system for a fuel management system
DE2522283C3 (en) * 1975-05-20 1981-02-19 Robert Bosch Gmbh, 7000 Stuttgart Device for starting and / or post-starting enrichment of the fuel-air mixture fed to an internal combustion engine and formed by means of an electric fuel injection system
US3982519A (en) * 1975-05-27 1976-09-28 Ford Motor Company Electronic-fuel-injection-system enrichment circuit for use during engine cranking
DE2612913C2 (en) * 1976-03-26 1984-11-08 Robert Bosch Gmbh, 7000 Stuttgart Method for warm-up enrichment of the fuel-air mixture supplied to an internal combustion engine and warm-up enrichment circuit
US4159697A (en) * 1976-10-04 1979-07-03 The Bendix Corporation Acceleration enrichment circuit for fuel injection system having potentiometer throttle position input
JPS5813090Y2 (en) * 1977-05-19 1983-03-14 トヨタ自動車株式会社 Diesel engine fuel control device
DE2728414C2 (en) * 1977-06-24 1985-03-28 Robert Bosch Gmbh, 7000 Stuttgart Device for controlling the injection quantity in internal combustion engines during a cold start
JPS5457922U (en) * 1977-09-30 1979-04-21
DE2757248A1 (en) * 1977-12-22 1979-06-28 Porsche Ag FUEL INJECTION SYSTEM FOR MIXED COMPRESSING, EXTERNAL IGNITION ENGINEERING
JPS5578131A (en) * 1978-12-06 1980-06-12 Nissan Motor Co Ltd Fuel ejection control device
JPS58172444A (en) * 1982-04-02 1983-10-11 Nissan Motor Co Ltd Estimation method for engine cooling water temperature
JPS58222927A (en) * 1982-06-18 1983-12-24 Honda Motor Co Ltd Fuel injection method at starting of internal-combustion engine for vehicle
US4747386A (en) * 1986-05-02 1988-05-31 Toyota Jidosha Kabushiki Kaisha Method and apparatus for augmenting fuel injection on hot restart of engine
US4763625A (en) * 1987-06-09 1988-08-16 Brunswick Corporation Cold start fuel enrichment circuit
JPS6460756A (en) * 1987-08-28 1989-03-07 Fuji Heavy Ind Ltd Start controller for engine
JP4002860B2 (en) * 2003-06-12 2007-11-07 ヤンマー株式会社 Fuel injection control device for fuel injection pump
JP4427523B2 (en) * 2006-05-09 2010-03-10 ヤンマー株式会社 Fuel injection pump
JP2008195290A (en) * 2007-02-14 2008-08-28 Atelier Zero:Kk Conveying device
US20090109039A1 (en) * 2007-10-24 2009-04-30 Krikor George Kellzi Remote starter system with temperature compensated crank time

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3032025A (en) * 1959-07-14 1962-05-01 Bendix Corp Fuel supply system
FR96024E (en) * 1967-05-24 1972-05-19
DE1751410A1 (en) * 1968-05-24 1971-07-01 Bosch Gmbh Robert Temperature-dependent switching device for an electronically controlled fuel injection device
US3628510A (en) * 1970-06-10 1971-12-21 Gen Motors Corp Fuel supply system for an internal combustion engine providing timed cranking enrichment
US3646918A (en) * 1970-06-16 1972-03-07 Bendix Corp Cold start auxiliary circuit for electronic fuel control system
US3646915A (en) * 1970-06-16 1972-03-07 Bendix Corp Cold start auxiliary circuit for electronic fuel control system
US3616784A (en) * 1970-07-17 1971-11-02 Gen Motors Corp Fuel supply system for an internal combustion engine providing time and voltage compensated cranking enrichment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112904372A (en) * 2021-04-22 2021-06-04 电子科技大学 Auxiliary satellite navigation system and positioning method thereof
CN112904372B (en) * 2021-04-22 2024-01-12 电子科技大学 Auxiliary satellite navigation system and positioning method thereof

Also Published As

Publication number Publication date
JPS503452B2 (en) 1975-02-05
AU4535572A (en) 1974-02-14
DE2237481C3 (en) 1974-02-14
DE2237481A1 (en) 1973-03-29
CA949167A (en) 1974-06-11
US3792693A (en) 1974-02-19
FR2149234A5 (en) 1973-03-23
DE2237481B2 (en) 1973-07-12
JPS4836511A (en) 1973-05-30
IT967303B (en) 1974-02-28
AU459594B2 (en) 1975-03-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees