GB1233639A - - Google Patents
Info
- Publication number
- GB1233639A GB1233639A GB1233639DA GB1233639A GB 1233639 A GB1233639 A GB 1233639A GB 1233639D A GB1233639D A GB 1233639DA GB 1233639 A GB1233639 A GB 1233639A
- Authority
- GB
- United Kingdom
- Prior art keywords
- speed
- transistor
- engine
- engine speed
- fuel supply
- 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
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
- F02D41/12—Introducing corrections for particular operating conditions for deceleration
- F02D41/123—Introducing corrections for particular operating conditions for deceleration the fuel injection being cut-off
Landscapes
- 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)
Abstract
1,233,639. Fuel injection systems. ROBERT BOSCH G.m.b.H. Sept. 19, 1969 [Sept. 21, 1968], No. 46258/69. Heading G1N. [Also in Division H3] In an I. C. engine fuel injection control system, fuel supply to the engine is cut-off when the butterfly valve is in its idling position and the engine speed is a predetermined amount in excess of the idling speed, i.e. when the engine is being driven by the vehicle, fuel supply being restored when the engine speed decreases to a predetermined speed below the cut-off speed but above the idling speed. Opening pulses are supplied to the valves 4 by a monostable multi-vibrator 40 triggered on synchronism with the engine speed by switches 31, 32 in a bi-stable multi-vibrator 20. The pulses from the output transistor 42 of the monostable multi-vibrator 40 are applied to block a transistor 60 which in turn renders a transistor 67 conductive, the transistor 67 being connected to respective AND transisters 16, 17 for respective groups of valves 4. The AND transistors are also connected to the outputs of the bi-stable multivibrator 20. In between opening pulses, i.e. when transistor 42 is blocked, capacitors 73, 76 arranged in a network 71, are charged, the charging voltage of 73, which is effected with short time constant, being dependent upon the temperature of the engine as sensed by N. T. C. resistor 93 but independent of engine speed, the charging voltage of 76, which is effected with long time constant, being dependent upon the engine speed. When transister 42 becomes conductive to produce an opening pulse, capacitors 73, 76 are discharged. When the butterfly valve is in its idling position, a switch S is closed, and if the engine speed is low, the charge stored in a capacitor 90 (which is charged between pulses when transistors 42, 70 are non-conductive) is discharged to apply a blocking pulse to transistor 60, the opening pulse then being applied to a group of valves 4 and transistor 70 being rendered conductive by feedback resistor 86. However, if the engine speed is so high that a negative potential appears at P at the commencement of the next following opening pulse as a result of the incomplete discharge of capacitor 73, transistor 70 can only become conductive during the discharge time of capacitor 90 and then transistor 60 is blocked only during this time which is insufficient to cause opening of the valves 4. Thus when the engine speed reaches a speed no, which is higher for laver temperatures, the fuel supply to the engine is blocked. The supply is unblocked when the engine speed is reduced to a speed n, which is also dependent upon the engine temperature. In an alternative arrangement, Fig.3 (not shown), two such networks 71 are connected in parallel to operate in the transistor 70, the one being temperature dependent as shown in Fig. 1, the other being independent of temperature. When the engine speed increases when the switch S is closed, the fuel supply is cut off by the network which is set to the lower cut-off speed, and the fuel supply is also restored by the network which is set to the lower restoring speed.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681776103 DE1776103C3 (en) | 1968-09-21 | Control device for operating an injection system for an internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1233639A true GB1233639A (en) | 1971-05-26 |
Family
ID=5702849
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1233639D Expired GB1233639A (en) | 1968-09-21 | 1969-09-19 |
Country Status (6)
Country | Link |
---|---|
US (1) | US3570460A (en) |
JP (1) | JPS4940890B1 (en) |
AT (1) | AT291682B (en) |
FR (1) | FR2018587A1 (en) |
GB (1) | GB1233639A (en) |
SE (1) | SE341888B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1227230A2 (en) * | 2001-01-26 | 2002-07-31 | Denso Corporation | Engine control apparatus |
Families Citing this family (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3683869A (en) * | 1969-02-03 | 1972-08-15 | Nippon Denso Co | Fuel injection control system for internal combustion engines |
GB1306526A (en) * | 1969-05-06 | 1973-02-14 | Asahi Toy Co | Electric heaters |
GB1319152A (en) * | 1969-10-22 | 1973-06-06 | Nissan Motor | Engine overrun preventing device for internal combustion engine |
GB1332311A (en) * | 1969-10-22 | 1973-10-03 | Nissan Motor | Fuel shutoff device for internal combustion engine |
US3835825A (en) * | 1969-11-21 | 1974-09-17 | Brico Eng | Internal combustion engines |
DE2017094A1 (en) * | 1970-04-10 | 1971-10-21 | Volkswagenwerk Ag, 3180 Wolfsburg | Mixture control system for an internal combustion engine with controlled fuel injection |
DE2034764A1 (en) * | 1970-07-14 | 1972-01-27 | Bosch Gmbh Robert | Control device for injection system |
US3906909A (en) * | 1970-10-24 | 1975-09-23 | Alfa Romeo Spa | Internal combustion engine of the fuel injection type having means for reducing the emission of unburned products with the exhaust gases |
US3747576A (en) * | 1971-05-24 | 1973-07-24 | Gen Motors Corp | Electronic fuel injection system including transient power compensation |
US3731659A (en) * | 1971-09-07 | 1973-05-08 | Gen Motors Corp | Electronic fuel injection system having deceleration fuel control |
US3809028A (en) * | 1971-09-27 | 1974-05-07 | Bendix Corp | Fuel cutoff circuit responsive to engine deceleration conditions for use in conjunction with the fuel delivery system for an internal combustion engine |
FR2151154A5 (en) * | 1971-09-27 | 1973-04-13 | Brico Eng | |
US3794003A (en) * | 1972-01-13 | 1974-02-26 | Bendix Corp | Pressure dependent deceleration cutoff for an internal combustion engine fuel delivery system |
JPS5141931Y2 (en) * | 1972-07-06 | 1976-10-13 | ||
US4138976A (en) * | 1975-06-19 | 1979-02-13 | Chrysler Corporation | Engine timing system with automatic selective utilization of first and second signals |
GB1568960A (en) * | 1975-10-22 | 1980-06-11 | Lucas Industries Ltd | Fuel control system for an internal combustion engine |
GB1568239A (en) * | 1976-02-12 | 1980-05-29 | Semmler F | Vehicle having an internal combustion engine and apparatus for controlling fuel supply to the engine |
JPS569060Y2 (en) * | 1976-04-16 | 1981-02-27 | ||
DE2620181A1 (en) * | 1976-05-07 | 1977-11-24 | Bosch Gmbh Robert | DEVICE FOR SAFE SWITCHING OF ACTUATORS, IN PARTICULAR WHEN OPERATING A MOTOR VEHICLE |
JPS535331A (en) * | 1976-07-02 | 1978-01-18 | Nippon Denso Co Ltd | Air-fuel ratio feedback control system |
JPS5849700B2 (en) * | 1976-07-22 | 1983-11-05 | トヨタ自動車株式会社 | Internal combustion engine fuel supply control device |
DE2736307C2 (en) * | 1976-08-18 | 1986-07-31 | Nippondenso Co., Ltd., Kariya, Aichi | Method and device for a fuel supply system of an internal combustion engine with external ignition |
DE2702184C2 (en) * | 1977-01-20 | 1985-03-21 | Robert Bosch Gmbh, 7000 Stuttgart | Method and device for acceleration enrichment in an electrically controlled fuel supply device, in particular a fuel injection device, for internal combustion engines |
US4103655A (en) * | 1977-03-22 | 1978-08-01 | Donald Kennedy Coles | Internal combustion engine |
JPS5820377B2 (en) * | 1977-04-28 | 1983-04-22 | アイシン精機株式会社 | Constant-speed running method and device for a vehicle equipped with an engine equipped with a fuel injection device |
US4174681A (en) * | 1977-07-18 | 1979-11-20 | The Bendix Corporation | Two-group/simultaneous full injection conversion system for multiple cylinder engines |
US4237833A (en) * | 1979-04-16 | 1980-12-09 | General Motors Corporation | Vehicle throttle stop control apparatus |
JPS562430A (en) * | 1979-06-20 | 1981-01-12 | Nissan Motor Co Ltd | Cold start countermeasuring device for number of cylinder controlling engine |
JPS56107927A (en) * | 1980-01-31 | 1981-08-27 | Nissan Motor Co Ltd | Fuel feeder |
JPS5751918A (en) * | 1980-09-16 | 1982-03-27 | Toyota Motor Corp | Control method of fuel injection in internal combustion engine |
FR2511430B1 (en) * | 1981-08-11 | 1986-06-27 | Peugeot | FUEL SUPPLY DEVICE FOR AN INTERNAL COMBUSTION ENGINE FOLLOWING A DECELERATION CUT |
DE3134991A1 (en) * | 1981-09-04 | 1983-03-17 | Robert Bosch Gmbh, 7000 Stuttgart | METHOD FOR OPERATING AND DEVICE FOR A FUEL CONTROL SYSTEM OF AN INTERNAL COMBUSTION ENGINE IN DISCHARGE OPERATION |
DE3214195A1 (en) * | 1982-04-17 | 1983-10-20 | Robert Bosch Gmbh, 7000 Stuttgart | CURRENT REGULATOR FOR AN ELECTROMAGNETIC CONSUMER IN CONNECTION WITH AN INTERNAL COMBUSTION CONTROLLER |
DE3233932C1 (en) * | 1982-09-13 | 1984-03-15 | Karl Hopt GmbH, 7464 Schömberg | Device for reducing the fuel supply of a drive motor of a motor vehicle |
JPS59107032U (en) * | 1983-01-10 | 1984-07-19 | 日産自動車株式会社 | Diesel engine fuel control device |
DE3722633A1 (en) * | 1987-07-09 | 1989-01-19 | Vdo Schindling | ELECTRIC GAS PEDAL |
US5231965A (en) * | 1992-11-23 | 1993-08-03 | Deere & Company | Throttle signal modifying circuit |
JPH10318007A (en) * | 1997-05-23 | 1998-12-02 | Yamaha Motor Co Ltd | Multiple cylinder engine for small planing boat |
CN114183258B (en) * | 2021-12-07 | 2023-07-18 | 潍柴动力股份有限公司 | Vehicle downhill braking method adopting closed traveling system and vehicle |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2948272A (en) * | 1956-11-16 | 1960-08-09 | Bendix Aviat Corp | Fuel supply system |
US3032025A (en) * | 1959-07-14 | 1962-05-01 | Bendix Corp | Fuel supply system |
US3005447A (en) * | 1959-10-07 | 1961-10-24 | Bosch Gmbh Robert | Fuel injection arrangement for internal combustion engines |
DE1264142B (en) * | 1966-05-20 | 1968-03-21 | Bosch Gmbh Robert | Diesel engine with an actuator for adjusting the amount of fuel and an adjustment regulator |
DE1526503B1 (en) * | 1966-11-03 | 1971-03-04 | Bosch Gmbh Robert | Fuel injection system |
DE1526506A1 (en) * | 1966-11-25 | 1970-03-26 | Bosch Gmbh Robert | Fuel injection system |
-
1969
- 1969-08-29 SE SE12008/69A patent/SE341888B/xx unknown
- 1969-09-04 AT AT844269A patent/AT291682B/en not_active IP Right Cessation
- 1969-09-11 US US856997A patent/US3570460A/en not_active Expired - Lifetime
- 1969-09-19 GB GB1233639D patent/GB1233639A/en not_active Expired
- 1969-09-20 JP JP44074399A patent/JPS4940890B1/ja active Pending
- 1969-09-29 FR FR6931994A patent/FR2018587A1/fr not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1227230A2 (en) * | 2001-01-26 | 2002-07-31 | Denso Corporation | Engine control apparatus |
EP1227230A3 (en) * | 2001-01-26 | 2004-11-24 | Denso Corporation | Engine control apparatus |
EP1666712A1 (en) * | 2001-01-26 | 2006-06-07 | Denso Corporation | Engine control apparatus |
Also Published As
Publication number | Publication date |
---|---|
FR2018587A1 (en) | 1970-05-29 |
SE341888B (en) | 1972-01-17 |
JPS4940890B1 (en) | 1974-11-06 |
DE1776103B2 (en) | 1975-08-21 |
AT291682B (en) | 1971-07-26 |
DE1776103A1 (en) | 1971-07-01 |
US3570460A (en) | 1971-03-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |