US3734068A - Fuel injection control system - Google Patents

Fuel injection control system Download PDF

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Publication number
US3734068A
US3734068A US00101896A US3734068DA US3734068A US 3734068 A US3734068 A US 3734068A US 00101896 A US00101896 A US 00101896A US 3734068D A US3734068D A US 3734068DA US 3734068 A US3734068 A US 3734068A
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US
United States
Prior art keywords
pulse
pulse train
engine
pulses
signal
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 - Lifetime
Application number
US00101896A
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English (en)
Inventor
J Reddy
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
Siemens Automotive LP
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
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Publication of US3734068A publication Critical patent/US3734068A/en
Assigned to SIEMENS-BENDIX AUTOMOTIVE ELECTRONICS L.P., A LIMITED PARTNERSHIP OF DE reassignment SIEMENS-BENDIX AUTOMOTIVE ELECTRONICS L.P., A LIMITED PARTNERSHIP OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ALLIED-SIGNAL INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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

Definitions

  • ABSTRACT [22] Filed: Dec. 28, 1970 An internal combustion engine fuel injection control system of the type having one or more electrically [21] 101896 controlled fuel injector valves which are opened and closed as a function of rotation of each revolution of [52] US. Cl. ..l23/32 EA, 123/119 R the crank shaft and/or the pressure in the engine in- [51] Int. Cl. ..F02d 5/00, F02m 51/00 take manifold so that the open time of the fuel injec- [58] Field of Search ..l23/32 EA tor valves changes with variations: in the speed of the crank shaft even if the pressure in the engine intake [56] References Cited manifold remains constant.
  • APW f(AMP) +f(ARPM) +f(AMP, ARPM) and when manifold pressure remains: constant and RPM changes, the change in the duration of the control pulse is reduced to the following:
  • the pulses controlling the open time of the fuel injection valves will vary in duration if the time required for one revolution of the engine crank shaft varies. This fast response time, heretobefore unattainable, optimizes the air-to-fuel ratio during operation of the engine, thereby maximizing the performance of the engine and decreasing the pollutants which would normally be exhausted into the atmosphere.
  • a ramp generator which establishes a locus of points at which the pulses of said first pulse train are capable of beginning
  • first switching means for sequentially applying said currents to said at least one storage member in response to the triggering signals, said first current being applied to said at least one storage member for a period of time immediately following a first triggering signal and said second current being applied to said at least one storage member in response to a selected succeeding triggering signal;

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  • 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)
  • Fuel-Injection Apparatus (AREA)
US00101896A 1970-12-28 1970-12-28 Fuel injection control system Expired - Lifetime US3734068A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10189670A 1970-12-28 1970-12-28

Publications (1)

Publication Number Publication Date
US3734068A true US3734068A (en) 1973-05-22

Family

ID=22287045

Family Applications (1)

Application Number Title Priority Date Filing Date
US00101896A Expired - Lifetime US3734068A (en) 1970-12-28 1970-12-28 Fuel injection control system

Country Status (12)

Country Link
US (1) US3734068A (es)
JP (1) JPS5129264B1 (es)
AR (1) AR193235A1 (es)
AU (1) AU452590B2 (es)
BR (1) BR7108570D0 (es)
CA (1) CA941486A (es)
ES (1) ES398403A1 (es)
FR (1) FR2120951A5 (es)
GB (1) GB1329630A (es)
IT (1) IT944400B (es)
SE (1) SE369757B (es)
SU (1) SU458139A3 (es)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971354A (en) * 1975-06-23 1976-07-27 The Bendix Corporation Increasing warm up enrichment as a function of manifold absolute pressure
US3987764A (en) * 1974-10-25 1976-10-26 International Harvester Company Timer means for sequential fuel injection
US4010717A (en) * 1975-02-03 1977-03-08 The Bendix Corporation Fuel control system having an auxiliary circuit for correcting the signals generated by the pressure sensor during transient operating conditions
US4034733A (en) * 1974-03-12 1977-07-12 Nippon Soken, Inc. Internal combustion engine
FR2366573A1 (fr) * 1976-10-04 1978-04-28 Bendix Corp Detecteur d'irregularite
US4099491A (en) * 1975-02-25 1978-07-11 The Bendix Corporation System controlling any air/fuel ratio with stoichiometric sensor and asymmetrical integration
US4134368A (en) * 1977-06-06 1979-01-16 Edelbrock-Hadley Corporation Fuel injection control system
US4156413A (en) * 1977-12-01 1979-05-29 The Bendix Corporation Cruise economy system
US4169440A (en) * 1977-12-01 1979-10-02 The Bendix Corporation Cruise economy system
US4195599A (en) * 1977-04-25 1980-04-01 The Bendix Corporation Speed sensitive electronic fuel control system for an internal combustion engine
US4307450A (en) * 1978-06-22 1981-12-22 The Bendix Corporation Hybrid electronic control unit
US4314538A (en) * 1972-02-15 1982-02-09 The Bendix Corporation Electronic fuel control system including electronic means for providing a continuous variable correction factor
US4327689A (en) * 1979-10-03 1982-05-04 The Bendix Corporation Combined warm-up enrichment, engine roughness and exhaust gas sensor control for EFI engine
US4617898A (en) * 1981-07-07 1986-10-21 Piper Fm Limited Fuel delivery to internal combustion engines
DE4136959A1 (de) * 1991-11-11 1993-05-13 Kloeckner Humboldt Deutz Ag Drehzahlregelung fuer eine brennkraftmaschine
US7566314B2 (en) 1994-11-03 2009-07-28 The Saunders Group, Inc. Portable cervical traction device
US20120123703A1 (en) * 2010-11-10 2012-05-17 Gabriele Serra Method for determining the injection law of a fuel injector using a roller-test bench
US20120227706A1 (en) * 2011-03-08 2012-09-13 Dai Tanaka Internal combustion engine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4176625A (en) * 1977-04-20 1979-12-04 The Bendix Corporation Pulse time addition circuit for electronic fuel injection systems

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4314538A (en) * 1972-02-15 1982-02-09 The Bendix Corporation Electronic fuel control system including electronic means for providing a continuous variable correction factor
US4034733A (en) * 1974-03-12 1977-07-12 Nippon Soken, Inc. Internal combustion engine
US3987764A (en) * 1974-10-25 1976-10-26 International Harvester Company Timer means for sequential fuel injection
US4010717A (en) * 1975-02-03 1977-03-08 The Bendix Corporation Fuel control system having an auxiliary circuit for correcting the signals generated by the pressure sensor during transient operating conditions
US4099491A (en) * 1975-02-25 1978-07-11 The Bendix Corporation System controlling any air/fuel ratio with stoichiometric sensor and asymmetrical integration
US3971354A (en) * 1975-06-23 1976-07-27 The Bendix Corporation Increasing warm up enrichment as a function of manifold absolute pressure
FR2366573A1 (fr) * 1976-10-04 1978-04-28 Bendix Corp Detecteur d'irregularite
US4092955A (en) * 1976-10-04 1978-06-06 The Bendix Corporation Roughness sensor
DE2743851A1 (de) * 1976-10-04 1979-03-08 Bendix Corp Rauhigkeitsfuehler zur feststellung der drehzahlaenderungen einer brennkraftmaschine
US4195599A (en) * 1977-04-25 1980-04-01 The Bendix Corporation Speed sensitive electronic fuel control system for an internal combustion engine
US4134368A (en) * 1977-06-06 1979-01-16 Edelbrock-Hadley Corporation Fuel injection control system
US4169440A (en) * 1977-12-01 1979-10-02 The Bendix Corporation Cruise economy system
US4156413A (en) * 1977-12-01 1979-05-29 The Bendix Corporation Cruise economy system
US4307450A (en) * 1978-06-22 1981-12-22 The Bendix Corporation Hybrid electronic control unit
US4327689A (en) * 1979-10-03 1982-05-04 The Bendix Corporation Combined warm-up enrichment, engine roughness and exhaust gas sensor control for EFI engine
US4617898A (en) * 1981-07-07 1986-10-21 Piper Fm Limited Fuel delivery to internal combustion engines
US4677958A (en) * 1981-07-07 1987-07-07 Piper Fm Limited Fuel delivery to internal combustion engines
DE4136959A1 (de) * 1991-11-11 1993-05-13 Kloeckner Humboldt Deutz Ag Drehzahlregelung fuer eine brennkraftmaschine
US7566314B2 (en) 1994-11-03 2009-07-28 The Saunders Group, Inc. Portable cervical traction device
US20120123703A1 (en) * 2010-11-10 2012-05-17 Gabriele Serra Method for determining the injection law of a fuel injector using a roller-test bench
US9212640B2 (en) * 2010-11-10 2015-12-15 MAGNETI MARELLI S.p.A. Method for determining the injection law of a fuel injector using a roller-test bench
US20120227706A1 (en) * 2011-03-08 2012-09-13 Dai Tanaka Internal combustion engine

Also Published As

Publication number Publication date
AU3736571A (en) 1973-06-28
IT944400B (it) 1973-04-20
FR2120951A5 (es) 1972-08-18
CA941486A (en) 1974-02-05
DE2163108A1 (de) 1972-07-20
ES398403A1 (es) 1974-09-16
SE369757B (es) 1974-09-16
DE2163108B2 (de) 1976-11-04
BR7108570D0 (pt) 1973-07-10
GB1329630A (en) 1973-09-12
JPS5129264B1 (es) 1976-08-24
SU458139A3 (ru) 1975-01-25
AR193235A1 (es) 1973-04-11
AU452590B2 (en) 1974-09-05

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SIEMENS-BENDIX AUTOMOTIVE ELECTRONICS L.P., A LIMI

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ALLIED-SIGNAL INC.;REEL/FRAME:005006/0282

Effective date: 19881202