US3816717A - Electrical fuel control system for internal combustion engines - Google Patents
Electrical fuel control system for internal combustion engines Download PDFInfo
- Publication number
- US3816717A US3816717A US00327603A US32760373A US3816717A US 3816717 A US3816717 A US 3816717A US 00327603 A US00327603 A US 00327603A US 32760373 A US32760373 A US 32760373A US 3816717 A US3816717 A US 3816717A
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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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
- F02D41/28—Interface circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Definitions
- 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.
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.
Description
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.
7 Claims, 88 Drawing Figures WU'NWNW A-D CONVERT- 1110, 1 ER GENERATOR I M VACUUM 1210 12110 I MEMORY msrm- COUNTER I I l BUTOR 1= 1 I 1120, i l 1510 1 ENGINE 1 OPERATIO- SPEED NAL CKT I 1 1 11 i OPERATIO- g i NAL CKT TEMP f 1230 1330 1 4520 a n; E i- 1 1720 1310B 1820B I611 015m- 1 1140, -MEMORY BUTOR COUNTER 1 1- TIMING' 1 t 1150- 1 ANGULAR L SENSOR 1920s. IGNITION 1 CLOCK SYSTEM 1920A SOLENOID VALVE PATENIEBJUH B 3 I914 INVENTORS VIsLIJE NM" 7 1" flnmd [fawn DI' 'M DER I dis dia
sum w 5 ATTORNEYQ' Pmmwwww mmm swim mw 5a I N VENTOR TTORNEYJ minimums" imam? sum r in HF 53 10 h r1112 1'2! 13 ram m 15 T51 is i'o INVENTORS H-Qud yam) Nero sen) Ami,
Claims (7)
1. A fuel control system for internal combustion engines in which the fuel is Supplied through an electromagnetic valve to each cylinder of the engine by an amount which is predetermined as a non-linear function of at least one operational parameter of the engine, said system comprising: vacuum sensor means responsive to the intake manifold vacuum of the engine for producing an analog voltage signal proportional to said vacuum; a first analog to digital converter connected in circuit with said vacuum sensor for converting said analog voltage signal to a first digital signal in a binary code of a predetermined number of places; a first discriminator connected in circuit with said first analog to digital converter for detecting one of a plurality of predetermined pressure ranges within which said vacuum represented by said first digital signal stands, and producing a number of output signals as determined by said detected pressure range; first circuit means including a plurality of first shifted code setting circuits for each producing digital signals in binary codes which indicate respectively numbers represented by binary codes obtained by shifting said binary code of said first digital signal to the right successively by one place each shift, a first constant code setting circuit for producing a predetermined constant value, and first selecting means for selecting a number of circuits from said first shifted code setting and said first constant code setting circuits in accordance with said number of output signals of said first discriminator and permitting said digital signals produced by the selected circuits to pass therethrough; a first adder connected to said first circuit means for receiving said digital signals passed through said selecting means and adding them to produce an injection digital signal; and injection circuit means for energizing said electromagnetic valve of each cylinder, thereby effecting a fuel injection for a time interval whose duration is determined by said injection digital signal.
2. A fuel control system according to claim 1, wherein said injection circuit means comprise: a memory circuit in circuit with said first adder for retaining said output digital signal of said first adder in a form of a binary code; a clock pulse generator for producing clock pulses with a predetermined frequency; means for producing a timing pulse which determines the starting of fuel injection during each cycle for each cylinder; a counter for counting said clock pulses transmitted thereto and producing an output digital signal in a binary code corresponding to the count; a comparator for producing an output signal for ending the energization of said electromagnetic valve under coincidence of the digital signal retained in said memory and that of said counter, and a distributor comprising means responsive to said timing pulse for starting and continuing energization of the electromagnetic valve of said each cylinder and simultaneously permitting said clock pulses, being transmitted to said counter from said clock pulse generator to pass therethrough and means responsive to an output signal of said comparator for ending the energization of said electromagnetic valve and simultaneously preventing thereafter said clock pulse from being transmitted to said counter.
3. A fuel control system according to claim 1, further comprising: a speed sensor responsive to the speed of the engine for producing an analog voltage signal proportional to the engine speed; an inverter circuit connected in circuit with said vacuum sensor for producing an analog voltage inversely proportional to said vacuum; a second analog to digital converter connected in circuit with said inverter circuit for converting said analog voltage signal produced by said inverter circuit to a second digital signal in a binary code of a predetermined number of places; a third analog to digital converter connected in circuit with said speed sensor for converting said analog voltage signal produceD by said speed sensor to a third digital signal of a binary code of a predetermined number of places; a second discriminator connected in circuit with said second analog to digital converter for detecting one of a plurality of predetermined pressure ranges within which the vacuum represented by said second digital signal stands and producing a number of output signals as determined by said detected pressure range; a third discriminator connected in circuit with said third analog to digital converter for detecting one of a plurality of predetermined speed ranges within which said engine speed represented by said third digital signal stands and producing a number of output signals determined by said detected speed range; second circuit means including a plurality of second shifted code setting circuits for producing digital signals of binary codes which indicate respectively numbers represented by binary codes obtained by shifting said binary code of said second digital signal to the right successively by one place each shift, a second constant code setting circuit for producing a digital signal of a binary code indicating a predetermined constant value, and second selecting means for selecting a number of circuits from said second shifted code setting and second constant code setting circuits in accordance with said number of output signals of said second discriminator and permitting said digital signals of the selected circuits to pass said second selecting means; third circuit means including a plurality of third shifted code setting circuits for producing digital signals in binary codes which indicate respectively numbers represented by binary codes obtainable by shifting said binary code of said third digital signal to the right successively by one place each shift, a third constant code setting circuit for producing a digital signal of a binary code indicating a predetermined constant value, and third selecting means for selecting a number of circuits from said third shifted code setting and third constant code setting circuits in accordance with said number of output signals of said third discriminator and permitting said digital signals of said selected circuits to pass through said third selecting means: a second adder connected in circuit with said third circuit means and said second circuit means for receiving said digital signals produced by said second and third circuit means and adding them to produce an ignition digital signal; and ignition circuit means for advancing an ignition of each cylinder by a time determined by said ignition digital signal.
4. A fuel control system according to claim 3, wherein said ignition circuit means comprise: a memory circuit for retaining said output digital signal of said second adder in a form of a binary code; an angular sensor for periodically producing pulses in accordance with rotations of the engine; a timing sensor for producing a timing pulse responsive to a predetermined position each cycle of each cylinder; a counter for counting pulses of said angular sensor transmitted thereto and producing an output digital signal of a binary code corresponding to the count; a comparator for producing an output signal upon coincidence of said digital signal of said memory circuit and that of said counter; a distributor comprising means responsive to said timing pulse for permitting said pulses of said angular sensor being transmitted therethrough to said counter; and an ignition circuit for producing an ignition timing signal responsive to said output signal of said comparator.
5. A fuel control system according to claim 1 further comprising: a temperature sensor responsive to the engine temperature for producing an analog voltage signal proportional thereto; a second analog to digital converter connected in circuit with said temperature sensor for converting said analog voltage signal to a second digital signal in a binary code of a predetermined number of places; a second discriminator connected in circuit with said analog to digital converter for detecting one of a plurality of predetermined temperature ranges within which said engine temperature represented by said second digital signal stands and producing a number of output signals determined by said detected temperature range; a start sensor for producing a signal upon starting of the engine; second circuit means comprising a plurality of second shifted code setting circuits for producing digital signals of binary codes which represent respectively numbers represented by binary codes obtained by shifting said binary code of said second digital signal to the right successively by one place each shift, a second constant setting circuit for producing a digital signal of a binary code indicating a predetermined constant value, and second selecting means for selecting a number of circuits from said second shifted code setting and said second constant setting circuits in accordance with said number of output signals of said second discriminator and said signal of said start sensor and permitting said digital signals produced by said selected circuits to pass therethrough; and a first auxiliary circuit connected between said first adder and said injection circuit means and further connected to said second circuit means for correcting said insection digital signal produced by said first adder in accordance with said digital signals passed through said second selecting means and supplying said corrected injection digital signal to said injection circuit means.
6. A fuel control system according to claim 5 further comprising: an engine speed sensor responsive to the engine speed for producing an analog voltage signal proportional to said engine speed; a third analog to digital converter connected in circuit to said engine speed sensor for converting said analog signal to a third digital signal of a binary code of a predetermined number of places; a third discriminator connected in circuit with said third analog to digital converters for detecting one of a plurality of predetermined speed ranges within which said engine speed represented by said third digital signal stands and producing a number of output signals determined by said detected speed range; a fourth discriminator connected in circuit with said first analog to digital converters for detecting one of a plurality of predetermined pressure ranges within which said vacuum represented by said first digital signal stands and producing a number of output signals determined by said detected pressure range; third circuit means comprising a plurality of third shifted code setting circuits for producing digital signals of binary codes which indicate respectively numbers represented by binary codes obtainable by shifting said binary code of said third digital signal to the right successively by one place each shift, a third constant code setting circuit for producing a digital signal indicative of a predetermined constant value, and third selecting means for selecting a number of circuits from said third shifted code setting and third constant code setting circuits in accordance with said output signals of said third discriminator and permitting said digital signals of said selected circuits to pass therethrough; fourth circuit means comprising fourth selecting means for selecting a number of circuits from said first shifted code setting and first constant code setting circuits in accordance with said output signals of said fourth discriminator and permitting said digital signals of said selected circuits determined by said fourth selecting means to pass therethrough; means connected to said third and fourth circuit means for summing the signals passed therethrough to provide an ignition signal; a first memory circuit for retaining a digital signal supplied thereto and connected to said injection circuit means for supplying the same with said digital signal memorizeD therein; a second memory circuit for receiving said ignition signal and retaining that ignition; and ignition circuit means connected to said second memory circuit for producing an ignition timing signal in accordance with said digital signal retained in said second memory circuit thereby effecting an ignition at a time determined by said retained digital signal.
7. A fuel control system according to claim 5 wherein said first auxiliary circuit comprises: a second adder connected to said second circuit means for adding said digital signals produced by said second circuit means thereby producing a number of second addition digital signals determined by said addition; adder circuit means connected to said first adder and said second adder and comprising a plurality of addition code setting circuits for producing digital signals of binary codes which indicate respectively numbers represented by binary codes obtainably by shifting a binary code of said injection digital signal produced by said first adder to the right successively by one place each shift, and adder selecting means for selecting a number of circuits from said addition code setting circuits in accordance with said number of second addition digital signals and permitting said digital signals of said selected circuits to pass therethrough, and a third adder connected between said adder circuit means and said injection circuit means for receiving said digital signals passed through said adder selecting means and adding them totally thereby producing a digital signal which is supplied to said injection circuit means as an injection digital signal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US444170A US3906205A (en) | 1970-03-20 | 1974-02-20 | Electrical fuel control system for internal combustion engines |
Applications Claiming Priority (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2383270 | 1970-03-20 | ||
JP45025681A JPS5012054B1 (en) | 1970-03-26 | 1970-03-26 | |
JP2968470 | 1970-04-07 | ||
JP3095170A JPS5012055B1 (en) | 1970-04-10 | 1970-04-10 | |
JP3210670 | 1970-04-15 | ||
JP3210370 | 1970-04-15 | ||
JP3460670 | 1970-04-22 | ||
JP45034856A JPS5012056B1 (en) | 1970-04-23 | 1970-04-23 | |
JP45044184A JPS5012643B1 (en) | 1970-05-22 | 1970-05-22 |
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US3816717A true US3816717A (en) | 1974-06-11 |
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US00327603A Expired - Lifetime US3816717A (en) | 1970-03-20 | 1973-01-26 | Electrical fuel control system for internal combustion engines |
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Cited By (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3895611A (en) * | 1972-10-17 | 1975-07-22 | Nippon Denso Co | Air-fuel ratio feedback type fuel injection system |
US3898962A (en) * | 1972-06-02 | 1975-08-12 | Bosch Gmbh Robert | Control system and devices for internal combustion engines |
US3906207A (en) * | 1972-05-10 | 1975-09-16 | Renault | Control system of the analogue-digital-analogue type with a digital computer having multiple functions for an automobile vehicle |
US3909601A (en) * | 1973-03-21 | 1975-09-30 | Nippon Denso Co | Digital type electronic control system |
US3969614A (en) * | 1973-12-12 | 1976-07-13 | Ford Motor Company | Method and apparatus for engine control |
US3971348A (en) * | 1974-05-08 | 1976-07-27 | International Harvester Company | Computer means for sequential fuel injection |
US3971354A (en) * | 1975-06-23 | 1976-07-27 | The Bendix Corporation | Increasing warm up enrichment as a function of manifold absolute pressure |
US4033272A (en) * | 1975-05-14 | 1977-07-05 | The Bendix Corporation | Electronic ignition timing system for an internal combustion engine |
US4100891A (en) * | 1974-08-07 | 1978-07-18 | Rockwell International Corporation | Electronic fuel injection control system |
US4107717A (en) * | 1975-11-18 | 1978-08-15 | Robert Bosch Gmbh | Method and apparatus for addressing a digital memory |
US4121553A (en) * | 1976-03-12 | 1978-10-24 | Nippondenso Co., Ltd. | Electric ignition advance system |
FR2434933A1 (en) * | 1978-07-26 | 1980-03-28 | Hitachi Ltd | APPARATUS FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE |
US4220125A (en) * | 1977-05-27 | 1980-09-02 | Nippon Soken, Inc. | Ignition timing control system for internal combustion engines |
US4240388A (en) * | 1977-09-19 | 1980-12-23 | Nippondenso Co., Ltd. | Method for controlling timing of spark ignition for an internal combustion engine |
US4268910A (en) * | 1977-12-16 | 1981-05-19 | Nippondenso Co., Ltd. | Method for controlling timing of spark ignition for an internal combustion engine by feedback related to the detection of knocking |
US4274141A (en) * | 1977-10-19 | 1981-06-16 | Hitachi, Ltd. | Method and apparatus for controlling an internal combustion engine, particularly the starting up of the engine |
US4277829A (en) * | 1977-10-19 | 1981-07-07 | Hitachi, Ltd. | Error preventing device for an electronic engine control apparatus |
US4280189A (en) * | 1977-10-19 | 1981-07-21 | Hitachi, Ltd. | Input signal processor used in electronic engine control apparatus |
US4282573A (en) * | 1977-10-19 | 1981-08-04 | Hitachi, Ltd. | Processor interrupt device for an electronic engine control apparatus |
US4292941A (en) * | 1977-02-08 | 1981-10-06 | Tokyo Shibaura Electric Co., Ltd. | Electronic ignition control systems |
US4310889A (en) * | 1977-10-19 | 1982-01-12 | Hitachi, Ltd. | Apparatus for electronically controlling internal combustion engine |
US4310888A (en) * | 1978-02-13 | 1982-01-12 | Hitachi, Ltd. | Technique for controlling the starting operation of an electronic engine control apparatus |
US4312038A (en) * | 1977-10-19 | 1982-01-19 | Hitachi, Ltd. | Electronic engine control apparatus having arrangement for detecting stopping of the engine |
US4379332A (en) * | 1978-09-25 | 1983-04-05 | The Bendix Corporation | Electronic fuel injection control system for an internal combustion engine |
US4383441A (en) * | 1981-07-20 | 1983-05-17 | Ford Motor Company | Method for generating a table of engine calibration control values |
US4393696A (en) * | 1981-07-20 | 1983-07-19 | Ford Motor Company | Method for generating energy output signal |
US4438497A (en) | 1981-07-20 | 1984-03-20 | Ford Motor Company | Adaptive strategy to control internal combustion engine |
EP0114136A2 (en) * | 1983-01-13 | 1984-07-25 | AlliedSignal Inc. | Ignition timing control system |
USRE31709E (en) * | 1972-01-18 | 1984-10-23 | Lumenition Limited | Ignition systems for internal combustion engines |
US6571774B2 (en) * | 1999-11-29 | 2003-06-03 | Isuzu Motors Limited | Engine fuel-injection control device |
US6834216B2 (en) * | 2001-12-13 | 2004-12-21 | Freescale Semiconductor, Inc. | Method and apparatus for the automatic synchronization of dynamic angular and time domain control systems |
US6876917B1 (en) | 2002-10-11 | 2005-04-05 | Polaris Industries Inc. | Exhaust pipe heater |
US20130110301A1 (en) * | 2011-10-26 | 2013-05-02 | Sap Ag | Energy-aware computing system |
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Title |
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Cited By (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE31709E (en) * | 1972-01-18 | 1984-10-23 | Lumenition Limited | Ignition systems for internal combustion engines |
US3906207A (en) * | 1972-05-10 | 1975-09-16 | Renault | Control system of the analogue-digital-analogue type with a digital computer having multiple functions for an automobile vehicle |
US3898962A (en) * | 1972-06-02 | 1975-08-12 | Bosch Gmbh Robert | Control system and devices for internal combustion engines |
US3895611A (en) * | 1972-10-17 | 1975-07-22 | Nippon Denso Co | Air-fuel ratio feedback type fuel injection system |
US3909601A (en) * | 1973-03-21 | 1975-09-30 | Nippon Denso Co | Digital type electronic control system |
US3969614A (en) * | 1973-12-12 | 1976-07-13 | Ford Motor Company | Method and apparatus for engine control |
US3971348A (en) * | 1974-05-08 | 1976-07-27 | International Harvester Company | Computer means for sequential fuel injection |
US4100891A (en) * | 1974-08-07 | 1978-07-18 | Rockwell International Corporation | Electronic fuel injection control system |
US4033272A (en) * | 1975-05-14 | 1977-07-05 | The Bendix Corporation | Electronic ignition timing system for an internal combustion engine |
US3971354A (en) * | 1975-06-23 | 1976-07-27 | The Bendix Corporation | Increasing warm up enrichment as a function of manifold absolute pressure |
US4107717A (en) * | 1975-11-18 | 1978-08-15 | Robert Bosch Gmbh | Method and apparatus for addressing a digital memory |
US4121553A (en) * | 1976-03-12 | 1978-10-24 | Nippondenso Co., Ltd. | Electric ignition advance system |
US4292941A (en) * | 1977-02-08 | 1981-10-06 | Tokyo Shibaura Electric Co., Ltd. | Electronic ignition control systems |
US4220125A (en) * | 1977-05-27 | 1980-09-02 | Nippon Soken, Inc. | Ignition timing control system for internal combustion engines |
US4240388A (en) * | 1977-09-19 | 1980-12-23 | Nippondenso Co., Ltd. | Method for controlling timing of spark ignition for an internal combustion engine |
US4282573A (en) * | 1977-10-19 | 1981-08-04 | Hitachi, Ltd. | Processor interrupt device for an electronic engine control apparatus |
USRE32156E (en) * | 1977-10-19 | 1986-05-20 | Hitachi, Ltd. | Method and apparatus for controlling an internal combustion engine, particularly the starting up of the engine |
US4280189A (en) * | 1977-10-19 | 1981-07-21 | Hitachi, Ltd. | Input signal processor used in electronic engine control apparatus |
US4274141A (en) * | 1977-10-19 | 1981-06-16 | Hitachi, Ltd. | Method and apparatus for controlling an internal combustion engine, particularly the starting up of the engine |
USRE32286E (en) * | 1977-10-19 | 1986-11-11 | Hitachi, Ltd. | Apparatus for electronically controlling internal combustion engine |
USRE32163E (en) * | 1977-10-19 | 1986-05-27 | Hitachi, Ltd. | Error preventing device for an electronic engine control apparatus |
US4310889A (en) * | 1977-10-19 | 1982-01-12 | Hitachi, Ltd. | Apparatus for electronically controlling internal combustion engine |
US4277829A (en) * | 1977-10-19 | 1981-07-07 | Hitachi, Ltd. | Error preventing device for an electronic engine control apparatus |
US4312038A (en) * | 1977-10-19 | 1982-01-19 | Hitachi, Ltd. | Electronic engine control apparatus having arrangement for detecting stopping of the engine |
US4268910A (en) * | 1977-12-16 | 1981-05-19 | Nippondenso Co., Ltd. | Method for controlling timing of spark ignition for an internal combustion engine by feedback related to the detection of knocking |
US4310888A (en) * | 1978-02-13 | 1982-01-12 | Hitachi, Ltd. | Technique for controlling the starting operation of an electronic engine control apparatus |
FR2434933A1 (en) * | 1978-07-26 | 1980-03-28 | Hitachi Ltd | APPARATUS FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE |
US4296722A (en) * | 1978-07-26 | 1981-10-27 | Hitachi, Ltd. | Control apparatus for an internal combustion engine |
US4379332A (en) * | 1978-09-25 | 1983-04-05 | The Bendix Corporation | Electronic fuel injection control system for an internal combustion engine |
US4438497A (en) | 1981-07-20 | 1984-03-20 | Ford Motor Company | Adaptive strategy to control internal combustion engine |
US4393696A (en) * | 1981-07-20 | 1983-07-19 | Ford Motor Company | Method for generating energy output signal |
US4383441A (en) * | 1981-07-20 | 1983-05-17 | Ford Motor Company | Method for generating a table of engine calibration control values |
EP0114136A3 (en) * | 1983-01-13 | 1985-03-06 | The Bendix Corporation | Ignition timing control system |
EP0114136A2 (en) * | 1983-01-13 | 1984-07-25 | AlliedSignal Inc. | Ignition timing control system |
US6571774B2 (en) * | 1999-11-29 | 2003-06-03 | Isuzu Motors Limited | Engine fuel-injection control device |
US6834216B2 (en) * | 2001-12-13 | 2004-12-21 | Freescale Semiconductor, Inc. | Method and apparatus for the automatic synchronization of dynamic angular and time domain control systems |
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