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Publication numberUS3816717 A
Publication typeGrant
Publication dateJun 11, 1974
Filing dateJan 26, 1973
Priority dateMar 20, 1970
Publication numberUS 3816717 A, US 3816717A, US-A-3816717, US3816717 A, US3816717A
InventorsH Yoshida, N Ando, K Oishi
Original AssigneeNippon Denso Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Electrical fuel control system for internal combustion engines
US 3816717 A
Abstract
An electrical fuel control system for internal combustion engines, wherein various data representing the operating conditions of an internal combustion engine are converted into digital signals which are operated on to generate such fuel controlling signals that suit the required characteristics of the engine, whereby the quantity of fuel injected as well as the spark timing are controlled to ensure the optimum amount of fuel injected and the optimum spark timing.
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Description  (OCR text may contain errors)

United States Patent 1191 Yoshida et a1.

ELECTRICAL FUEL CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINES Inventors: Hiroshi Yoshida; Noriyoshi Ando;

Kazuo Oishi, all of Kariya, Japan Assignee: Nippondenso Kabushiki Kaisha,

Kariya-shi, Japan Filed:

Jan. 26, 1973 Appl. No.: 327,603

Related U.S. Application Data Continuation of Ser. No. 126,830, March 22, 1971,

abandoned.

Foreign Application Priority Data Mar. 26, 1970 Apr. 7, 1970 Apr. 10, 1970 Apr. 15, 1970 Apr. 15, 1970 Apr. 22, 1970 U.S. Cl.'.... 235/l50.2l, 123/32 EA, 235/150.l,

Int. Cl..... F02d 5/00, F02d 37/02, G05b 15/02 Field of Search. 235/150.2l, 150.1, 151,

235/l51.l; 123/32 EA References Cited UNITED STATES PATENTS Guiot.....' 123/32 EA 1 June 11, 1974 OTHER PUBLICATlONS Williams: Electronic Fuel Injection ReducesAutomotive Pollution. Electronics Sept. 1972 Vol. ,45 No. 19, p. 121-125.

Primary ExaminerFelix D. Gruber Attorney, Agent, 0r Firm-Cushman, Darby & Cushman 5 7] ABSTRACT An electrical fuel control system for internal combustion engines, wherein various data representing the operating conditions of an internal combustion engine are converted into digital signals which are operated on to generate such fuel controlling signals that suit the required characteristics of the engine, whereby the quantity of fuel injected as well as the spark timing are controlled to ensure the optimum amount of fuel injected and the optimum spark timing.

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Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2918911 *Jan 2, 1958Dec 29, 1959Weselco LtdDevice for injecting fluid into internal combustion engines
US2918913 *Jun 12, 1957Dec 29, 1959Weselco LtdIgnition systems of internal combustion engines
US3272187 *Sep 8, 1964Sep 13, 1966Ass Eng LtdFuel injection systems for internal combustion engines
US3440614 *Jul 18, 1966Apr 22, 1969Int Standard Electric CorpInput linking device between analog functions and a numerical computer
US3548792 *Feb 11, 1969Dec 22, 1970Judson G PalmerControl apparatus for internal-combustion engines
US3566846 *Feb 20, 1969Mar 2, 1971Bosch Gmbh RobertElectronically controlled fuel injection arrangement for internal combustion engines
US3699935 *Dec 11, 1970Oct 24, 1972Bosch Gmbh RobertFail-safe fuel injection control arrangement for internal combustion engines
CA851576A *Oct 18, 1963Sep 15, 1970Arnold GuettaAutomatic engine control system
DE1816068A1 *Dec 20, 1968Aug 14, 1969Rolls RoyceVerfahren zur Steuerung von Produktions- oder Kraftmaschinenanlagen durch AEnderung eines Eingangsparameters der Anlage zwecks Treibens eines Ausgangsparameters der Anlage auf einen Optimalwert
Non-Patent Citations
Reference
1 *Williams: Electronic Fuel Injection Reduces Automotive Pollution. Electronics Sept. 1972 Vol. 45 No. 19, p. 121 125.
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3895611 *Oct 12, 1973Jul 22, 1975Nippon Denso CoAir-fuel ratio feedback type fuel injection system
US3898962 *May 31, 1973Aug 12, 1975Bosch Gmbh RobertControl system and devices for internal combustion engines
US3906207 *May 10, 1973Sep 16, 1975RenaultControl system of the analogue-digital-analogue type with a digital computer having multiple functions for an automobile vehicle
US3909601 *Mar 20, 1974Sep 30, 1975Nippon Denso CoDigital type electronic control system
US3969614 *Dec 12, 1973Jul 13, 1976Ford Motor CompanyMethod and apparatus for engine control
US3971348 *Apr 23, 1975Jul 27, 1976International Harvester CompanyComputer means for sequential fuel injection
US3971354 *Jun 23, 1975Jul 27, 1976The Bendix CorporationIncreasing warm up enrichment as a function of manifold absolute pressure
US4033272 *May 14, 1975Jul 5, 1977The Bendix CorporationElectronic ignition timing system for an internal combustion engine
US4100891 *Aug 7, 1974Jul 18, 1978Rockwell International CorporationElectronic fuel injection control system
US4107717 *Nov 17, 1976Aug 15, 1978Robert Bosch GmbhMethod and apparatus for addressing a digital memory
US4121553 *Feb 7, 1977Oct 24, 1978Nippondenso Co., Ltd.Electric ignition advance system
US4220125 *Mar 28, 1978Sep 2, 1980Nippon Soken, Inc.Ignition timing control system for internal combustion engines
US4240388 *Sep 11, 1978Dec 23, 1980Nippondenso Co., Ltd.Method for controlling timing of spark ignition for an internal combustion engine
US4268910 *Dec 14, 1978May 19, 1981Nippondenso Co., Ltd.Method for controlling timing of spark ignition for an internal combustion engine by feedback related to the detection of knocking
US4274141 *Oct 18, 1978Jun 16, 1981Hitachi, Ltd.Method and apparatus for controlling an internal combustion engine, particularly the starting up of the engine
US4277829 *Oct 18, 1978Jul 7, 1981Hitachi, Ltd.Error preventing device for an electronic engine control apparatus
US4280189 *Oct 18, 1978Jul 21, 1981Hitachi, Ltd.Input signal processor used in electronic engine control apparatus
US4282573 *Oct 18, 1978Aug 4, 1981Hitachi, Ltd.Processor interrupt device for an electronic engine control apparatus
US4292941 *Aug 8, 1980Oct 6, 1981Tokyo Shibaura Electric Co., Ltd.Electronic ignition control systems
US4296722 *Jul 26, 1979Oct 27, 1981Hitachi, Ltd.Control apparatus for an internal combustion engine
US4310888 *Feb 13, 1979Jan 12, 1982Hitachi, Ltd.Technique for controlling the starting operation of an electronic engine control apparatus
US4310889 *Oct 18, 1978Jan 12, 1982Hitachi, Ltd.Apparatus for electronically controlling internal combustion engine
US4312038 *Oct 18, 1978Jan 19, 1982Hitachi, Ltd.Electronic engine control apparatus having arrangement for detecting stopping of the engine
US4379332 *Sep 25, 1978Apr 5, 1983The Bendix CorporationElectronic fuel injection control system for an internal combustion engine
US4383441 *Jul 20, 1981May 17, 1983Ford Motor CompanyMethod for generating a table of engine calibration control values
US4393696 *Jul 20, 1981Jul 19, 1983Ford Motor CompanyMethod for generating energy output signal
US6571774 *Sep 27, 2001Jun 3, 2003Isuzu Motors LimitedEngine fuel-injection control device
US6834216 *Dec 13, 2001Dec 21, 2004Freescale Semiconductor, Inc.Method and apparatus for the automatic synchronization of dynamic angular and time domain control systems
US6876917Dec 23, 2002Apr 5, 2005Polaris Industries Inc.Exhaust pipe heater
US7031825Jan 12, 2005Apr 18, 2006Polaris Industries Inc.Exhaust pipe heater
USRE31709 *Sep 18, 1980Oct 23, 1984Lumenition LimitedIgnition systems for internal combustion engines
USRE32156 *Jun 16, 1983May 20, 1986Hitachi, Ltd.Method and apparatus for controlling an internal combustion engine, particularly the starting up of the engine
USRE32163 *Jul 7, 1983May 27, 1986Hitachi, Ltd.Error preventing device for an electronic engine control apparatus
USRE32286 *Jan 5, 1984Nov 11, 1986Hitachi, Ltd.Apparatus for electronically controlling internal combustion engine
EP0114136A2 *Jan 12, 1984Jul 25, 1984AlliedSignal Inc.Ignition timing control system
Classifications
U.S. Classification701/104, 701/105, 123/486
International ClassificationF02D41/24, F02P5/15
Cooperative ClassificationY02T10/46, F02D41/28, F02P5/15
European ClassificationF02D41/28, F02P5/15