WO1990015238A1 - Circuit pour reduire la consommation de carburant et l'emission de substances polluantes par des vehicules a moteur - Google Patents

Circuit pour reduire la consommation de carburant et l'emission de substances polluantes par des vehicules a moteur Download PDF

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Publication number
WO1990015238A1
WO1990015238A1 PCT/HU1989/000024 HU8900024W WO9015238A1 WO 1990015238 A1 WO1990015238 A1 WO 1990015238A1 HU 8900024 W HU8900024 W HU 8900024W WO 9015238 A1 WO9015238 A1 WO 9015238A1
Authority
WO
WIPO (PCT)
Prior art keywords
switch
circuit
clutch
idle
breaker
Prior art date
Application number
PCT/HU1989/000024
Other languages
English (en)
Inventor
László SZÉKELY
Original Assignee
Szekely Laszlo
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
Priority claimed from HU49988A external-priority patent/HU205431B/hu
Application filed by Szekely Laszlo filed Critical Szekely Laszlo
Priority to PCT/HU1989/000024 priority Critical patent/WO1990015238A1/fr
Publication of WO1990015238A1 publication Critical patent/WO1990015238A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M3/00—Idling devices for carburettors
    • F02M3/02—Preventing flow of idling fuel
    • F02M3/04—Preventing flow of idling fuel under conditions where engine is driven instead of driving, e.g. driven by vehicle running down hill
    • F02M3/045—Control of valves situated in the idling nozzle system, or the passage system, by electrical means or by a combination of electrical means with fluidic or mechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M3/00—Idling devices for carburettors
    • F02M3/02—Preventing flow of idling fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/10—Parameters used for control of starting apparatus said parameters being related to driver demands or status
    • F02N2200/103—Clutch pedal position
    • 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

  • the subject of the invention is a circuit arrange ⁇ ment for controlling the fuel consumption and polluting material emission of I.C.E. driven vehicles provided with a clutch pedal by means of the control element of the electromagnetic idle jet and having an automatic engine start-stop control function as well.
  • start-stop operating mode is applied with several engines.
  • control of start-stop system is performed by the clutch pedal or by the switch operated by it, as in case of patent specifications N- US 4 453 506 and N- DE 25 17 906 0
  • German Federal Republic refers to an electromagnetic idle jet closing system for Otto engines. A certain speed of rotation can be adjusted with the help of a pote ⁇ tio- 5 meter. Over this value the gasoline inlet is closed. If the speed of rotation decreases the idle run is set again A similar solution is contained in specification N— DE 16 01 406 (gFR).
  • the fundamental principlsof the invention is that, in certain cases, the idle jet can be closed in pull mode as well, in this way the more favourable fuel-air mixture reduces the fuel consumption and in particular the emissi ⁇ on of polluting eterial.
  • the two above mentioned effects can be further improved if, in addition to it the automa ⁇ tic start-stop control of the engine is also realized in such a way that stopping is effected by ceasing the fuel supply and not by turning off the ignition i.e. the start-stop function is realized by the status-combinations of the operating elements of the vehicle.
  • the solution involved in the present invention, in its most general form, is a circuit arrangement to reduce fuel consumption and the emission of polluting materials of I.C.E. driven vehicles.
  • the pedal clutch in its upper play range, closes a clutch switch which stops the idle mode.
  • This switch is part of the controll ⁇ ing operating circuit of the electromagnetic idle jet, furthermore there is a starter breaking clutch switch in the direct starter circuit or in the indirect, operat ⁇ ing circuit of the starter, which closes at a point lower than the closing point of the afore-mentioned switch and than the clutching point of the clutch structure.
  • V The supply voltage (V) of the vehicle, which is typically provided by batteries in case of motor vehic ⁇ les, should be led to the control element of the electro ⁇ magnetic idle jet (1) and to the starter (9). This is traditionally carried out by direct supply or in an indi ⁇ rect way, through a relay. The connection/disconnection is performed by the ignition and starter switch (13).
  • the ignition and starter switch (13) remains at its original place, however sensing and electrically switching elements will be included in the above mentioned two circuits. These elements effect con ⁇ nection and disconnection if certain physical conditions or drivers operations take place. The arrangement and the operation of these elements provide the novelty and the progressive feature of this invention.
  • Both the idle (2) and the starter (10) breaking clutch switches are closed when the foot pedal is pressed. They break the circuits of the electromagnetic idle jet control (1) elements and those of the starter (9) respec ⁇ tively, directly or through a relay.
  • the closing point of the idle breaking clutch switch (2) is the clutching point of the pedal clutch within the range of the foot pedal play, while the closing point of the starter break-
  • the stop-light switch (3) which closes when the brake pedal is pressed. This is a normal accessory for vehicles
  • a threshold value sensor (4) for the speed of rotation of the engine is optional, but advisable. This sensor
  • the parking brake breaker switch (8) which is closed when the parking brake is drawn in.
  • the temperature guard (12) which is closed when the temperature is outside the optimal working temperature range of the engine.
  • a further, suitably applied circuit breaking ele ⁇ ment is the engine turning indicator breaker (11), which can be involved in the direct or indirect control circuit of the starter (9), when it is in series with the starter breaking clutch switch (10).
  • the vehicle, remondelled according to the circuit arrangement, will start in the following way.
  • the pedal clutch is pressed thus the starter breaking clutch switch (10) closes the circuit of the starter (9) in a direct or an indirect way, for example through a relay, and the starter (9) starts the vehicle engine.
  • an engine tur ⁇ - ing indicator breaker (11) is involved it will cut off the circuit of the starter (9) in a short while, typically with a delay of 1-2 sec. In case of a standing engine it can be considered a closed switch. Breaking may take place by means of sensing any kind of physical parameters referming to "the engine operating status by the appearance of any signal which is static or periodic in time.
  • Practi ⁇ cally it can be the oil pressure, of the engine or if the battery charging current gets to a certain threshold value.
  • the engine turning indicator breaker (11) can be a relay controlled by the signal of the oil pressure switch. In case of automatic engine start ⁇ ing the switch eliminates the possibility of re-starting the engine running already. Due to the closed idle breaking clutch switch on pressing the pedal clutch the electromagnetic idle jet control (1) activates the idle jet, providing the idle run needed for starting off.
  • Re-starting by pressing the foo pedal is possible only if the engine is not mechanically connected to the wheels. Furthermore, for gear change, i.e. when the clutch is pressed the idle run is always provided.
  • the electromagnetic idle run jet is energized, or operates, when the driver presses the pedal clutch for gear change and by this the idle breaking clutch switch (2) is pressed as well.
  • Stopping is achieved not by the ignition breaking but by stopping the fuel supply, which means, that the combustion process is more effective than the previous one and the emission of poluti ⁇ g materials is also decre ⁇ ased . Furthermore after stopping, suitably, the current supply for the ignition unit and the important electrical loads should be cut off.
  • a built-in stop-light switch provides the idle run if the clutch is not pressed, but the engine stop is not required for a short waiting period in case of a standing vehicle. Pressing the pejdal clutch closes the built-in switching element of the circuit of the electromagnetic idle jet control (1) and makes the idle jet operate and provides the idle run.
  • the driver may keep the break pedal pressed, by which the engine stop can be temporarily pre ⁇ vented.
  • a threshold value sensor (4) for the speed of rotation of the engine is built-in, it prevents idle jet operation over an engine type specific critical idle run speed of rotation in spite of the brake pedal being pressed.
  • the volta ⁇ ge controlled breaker (5) is suitable for switching over the system into the traditional operating mode of perma ⁇ nent idle run till the voltage is recreated by the elec- trical charger of the vehicle.
  • a breaker switch (8) is built into the parking brake by drawing up the parking brake - by closing the circuit of the electromagnetic idle jet control (1) - with an other condition also fulfilled, the idle jet ac ⁇ tive status is provided. Namely, if the driver draws up the parking brake, the idle run remains without pressing any of the pedals. It is not indispensably necessary but if means comfort if running is interrupted by short stop ⁇ pings .
  • the task of the temperature guard (12) is that if the engine of the vehicle is not inside the optimal range of the operating temperature, either in case of lower or higher temperatures, it closes the circuit of idle run, thus the cold engine receives a mixture opulent in fuel and the overwarmed engine is given a cooling pos ⁇ sibility .

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

Dans le circuit décrit, la pédale d'embrayage, dans sa plage supérieure de marche, actionne un interrupteur d'embrayage au ralenti (2), coupant ainsi le circuit de la commande électromagnétique (1) du gicleur de ralenti. Un interrupteur d'embrayage au démarrage (10) se trouve dans le circuit d'actionnement direct ou indirect du démarreur (9), et ferme le circuit du démarreur lorsque la pédale d'embrayage est enfoncée plus profond que le point d'embrayage de la structure d'embrayage et que le point de fermeture de l'interrupteur d'embrayage au ralenti (2).
PCT/HU1989/000024 1988-02-03 1989-05-31 Circuit pour reduire la consommation de carburant et l'emission de substances polluantes par des vehicules a moteur WO1990015238A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/HU1989/000024 WO1990015238A1 (fr) 1988-02-03 1989-05-31 Circuit pour reduire la consommation de carburant et l'emission de substances polluantes par des vehicules a moteur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HU49988A HU205431B (en) 1988-02-03 1988-02-03 Connection arrangement for controlling the fuel-utilization and/or harmful-material emission of motor vehicles driven by internal combustion engine
PCT/HU1989/000024 WO1990015238A1 (fr) 1988-02-03 1989-05-31 Circuit pour reduire la consommation de carburant et l'emission de substances polluantes par des vehicules a moteur

Publications (1)

Publication Number Publication Date
WO1990015238A1 true WO1990015238A1 (fr) 1990-12-13

Family

ID=26317225

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/HU1989/000024 WO1990015238A1 (fr) 1988-02-03 1989-05-31 Circuit pour reduire la consommation de carburant et l'emission de substances polluantes par des vehicules a moteur

Country Status (1)

Country Link
WO (1) WO1990015238A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2450149A1 (de) * 1973-10-24 1975-09-25 Nippon Denso Co Abstell- und anlass-steuer-vorrichtung fuer brennkraftmaschinen zum antrieb von fahrzeugen
DE2745621A1 (de) * 1977-10-11 1979-04-12 Daimler Benz Ag Vorrichtung zum absperren der kraftstoffzufuhr fuer kraftfahrzeuge
DE2916554A1 (de) * 1978-04-24 1979-10-25 Snam Progetti Antriebseinrichtung fuer brennkraftmaschinen zur verminderung von luftverunreinigung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2450149A1 (de) * 1973-10-24 1975-09-25 Nippon Denso Co Abstell- und anlass-steuer-vorrichtung fuer brennkraftmaschinen zum antrieb von fahrzeugen
DE2745621A1 (de) * 1977-10-11 1979-04-12 Daimler Benz Ag Vorrichtung zum absperren der kraftstoffzufuhr fuer kraftfahrzeuge
DE2916554A1 (de) * 1978-04-24 1979-10-25 Snam Progetti Antriebseinrichtung fuer brennkraftmaschinen zur verminderung von luftverunreinigung

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