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Publication numberUS3906205 A
Publication typeGrant
Publication dateSep 16, 1975
Filing dateFeb 20, 1974
Priority dateMar 20, 1970
Publication numberUS 3906205 A, US 3906205A, US-A-3906205, US3906205 A, US3906205A
InventorsHiroshi Yoshida, Noriyoshi Ando, Kazuo Oishi
Original AssigneeNippon Denso Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Electrical fuel control system for internal combustion engines
US 3906205 A
Abstract
An electrical control system with a plurality of sensors, shifted code setting circuits, selecting means, adders, memories and a command signal generator causing output signals of the sensors to be respectively binary-coded, shifted by the shifted code setting circuits and selected in accordance with the output signals of the sensor corresponding thereto in the manner previously programmed, for developing respective output signals which are added in a time-sharing manner controlled by the command signal generator to obtain an engine control signal to secure the optimum engine condition.
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Description  (OCR text may contain errors)

United States Patent Yoshida et al.

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

Kazuo Oishi, all of Kariya, Japan [73] Assignee: Nippondenso Co., Ltd., Kariya,

Japan Notice: The portion of the term of this patent subsequent to June 1 l, 1991, has been disclaimed.

[22] Filed: Feb. 20, 1974 21 Appl. No.: 444,170

Related US. Application Data Continuation-impart of Scr. No. 327,603, Jan. 26, 1973, Pat. No. 3,816,717, which is a continuation of Ser. No. 126,830, March 22, 1971, abandoned.

1*Sept. 16, 1975 [56] References Cited UNITED STATES PATENTS 3,749,070 7/1973 Oishi 123/32 EA 3,756,204 /1973 Suda 123/32 EA 3,796,197 3/1974 Locher et a1. 123/32 EA 3,811,037 5/1974 Kitano 235/150.21

OTHER PUBLICATIONS Williams: Electronic Fuel Injection Reduces Automo tive Pollution, Electronics, Sept. 1972, Vol. 45, No. 19, pp. 121425.

Primary Examiner-Felix D. Gruber Attorney, Agent, or F irm-Cushman, Darby & Cushman [5 7] ABSTRACT An electrical control system with a plurality of sensors, shifted code setting circuits, selecting means, adders, memories and a command signal generator causing output signals of the sensors to be respectively binary-coded, shifted by the shifted code setting circuits and selected in accordance with the output signals of the sensor corresponding thereto in the manner previously programmed. for developing respective output signals which are added in a time-sharing manner controlled by the command signal generator to obtain an engine control signal to secure the optimum engine condition.

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Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3749070 *Nov 2, 1970Jul 31, 1973Nippon Denso CoControl system for internal combustion engines
US3756204 *Jun 11, 1970Sep 4, 1973Hitachi LtdFuel injection system for internal combustion engines
US3796197 *Mar 5, 1971Mar 12, 1974Bosch Gmbh RobertElectronic regulator with fuel injection control for diesel engines
US3811037 *Jul 5, 1972May 14, 1974Nippon Denso CoDigital data corrector
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3960120 *May 21, 1975Jun 1, 1976Nisan Motor Co., Ltd.Electronic fuel injection control circuit for an internal combustion engine
US3969614 *Dec 12, 1973Jul 13, 1976Ford Motor CompanyMethod and apparatus for engine control
US3983851 *Mar 14, 1975Oct 5, 1976Hitachi, Ltd.Electronic fuel injection apparatus
US4015565 *Jun 12, 1975Apr 5, 1977Nissan Motor Co., Ltd.Spark-advance control apparatus for internal combustion engine
US4036190 *May 10, 1976Jul 19, 1977Fiat Societa Per AzioniDevice for automatic control of electronic spark ignition advance for internal combustion engines
US4122811 *Jul 25, 1977Oct 31, 1978General Motors CorporationDigital closed loop fuel control system
US4181944 *Jul 14, 1978Jan 1, 1980Hitachi, Ltd.Apparatus for engine control
US4261314 *Oct 9, 1979Apr 14, 1981Ford Motor CompanyFuel injection control system for a fuel injected internal combustion engine
US4267569 *May 25, 1979May 12, 1981Robert Bosch GmbhMicro-computer system for control and diagnosis of motor vehicle functions
US4377995 *Jun 27, 1980Mar 29, 1983Volkswagenwerk AktiengesellschaftMethod and arrangement for operation of an internal combustion engine of a vehicle
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
US4455983 *Nov 8, 1982Jun 26, 1984Volkswagenwerk AktiengesellschaftMethod and arrangement for operation of an internal combustion engine of a vehicle
US5233964 *Oct 10, 1991Aug 10, 1993Ford Motor CompanyUniversal control of a plurality of fuel injectors for an internal combustion engine
US5444861 *Oct 4, 1994Aug 22, 1995United Technologies CorporationSystem for downloading software
Classifications
U.S. Classification700/70, 123/486, 123/406.6
International ClassificationF02P5/15, F02D41/24
Cooperative ClassificationY02T10/46, F02P5/15, F02D41/28
European ClassificationF02D41/28, F02P5/15