US3648808A - Throttle valve controller device for automobile carburetor - Google Patents

Throttle valve controller device for automobile carburetor Download PDF

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Publication number
US3648808A
US3648808A US3436A US3648808DA US3648808A US 3648808 A US3648808 A US 3648808A US 3436 A US3436 A US 3436A US 3648808D A US3648808D A US 3648808DA US 3648808 A US3648808 A US 3648808A
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United States
Prior art keywords
throttle valve
clutch plate
degree
side clutch
engine
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Expired - Lifetime
Application number
US3436A
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English (en)
Inventor
Takaaki Kato
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Denso Corp
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NipponDenso Co Ltd
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Filing date
Publication date
Application filed by NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
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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
    • F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
    • F02D31/001—Electric control of rotation speed
    • F02D31/002—Electric control of rotation speed controlling air supply

Definitions

  • the electrical connection is constituted by an element for generating an electric signal corresponding to the degree of depression of the accelerator pedal, an element for controlling the degree of opening of the throttle valve in accordance with the electric signal generated, a plurality of switches connected with a reference signal transmission line provided between the two elements,
  • Such a necessity may typically take place, for example, when the driver wants his vehicle to run with its engine revolving at a constant speed irrespective of the load of the vehicle, that is, when it is desired to provide a constant-speed running function for automatically maintaining the vehicles running speed at a constant level. Similar necessities may also arise when it is desired to close the throttle valve to thereby prevent any excess revolutions of the engine in order to protect the engine from any danger which might result if the number of engine revolutions exceed a prescribed value, or when the number of engine revolutions must be controlled so as to provide the same number of rotations to two clutch surfaces or plates in order to accomplish clutch engagement by changing over the speed change gear.
  • the carbureter throttle valve controller device includes an element or means for generating an electric signal corresponding to the degree of depression of the accelerator pedal means for producing at least one reference signal related to an engine drive characteristic or parameter, and an element or means for controlling the degree of opening of the carbureter throttle valve in accordance with the said electric signal.
  • These two elements or means together constitute an electrical connection between the accelerator pedal and the throttle valve.
  • the changeover of the switches enables the selection of an input reference signal supplied to the latter one of the two elements, or means so that the degree of of opening of the carburetor throttle valve can be set in accordance with the reference signal produced by the second-mentioned means, but independently of the degree of depression of the accelerator pedal.
  • the throttle valve control achieved by the present invention does not permit any movement of the throttle valve to be transmitted to the accelerator pedal and this means a great contribution to the safety requirement in the automobile driving in that the driver can be free from any restless feeling or worries which might result from such transmission of the movement of the throttle valve.
  • FIG. 1 is a block diagram illustrating the basic arrangement of the throttle valve controller device according to the present invention
  • FIGS. 2 and 3 are similar diagrams illustrating other examples -of the throttle valve controller device embodying the present invention.
  • the reference voltage generator 1 for generating an electric signal (in this case, the magnitude of a DC voltage) corresponding to the degree to which an accelerator pedal 2 is depressed by the driver's foot.
  • the reference voltage generator 1 may comprise an element such as a potentiometer, differential transformer or like means which converts a mechanical displacement into an electric signal.
  • an amplitier 3 a servo mechanism 4, and a carburetor throttle valve 5.
  • switches 6, 6a and 6b are further provided, and the switch 6 functions in such a manner that while it is being closed a reference voltage is transmitted from the reference voltage generator 1 to the amplifier 3.
  • the output of the amplifier 3 is applied to the servo mechanism 4 whose output causes the throttle valve 5 to open or close.
  • the degree of this opening of the throttle valve 5 is detected by an element 7 such as a potentiometer which converts a mechanical displacement into an electrical signal, and the electrical signal is conducted as a negative feedback to the input of the amplifier 3.
  • an element 7 such as a potentiometer which converts a mechanical displacement into an electrical signal
  • the electrical signal is conducted as a negative feedback to the input of the amplifier 3.
  • the throttle valve will be opened to a stable degree.
  • the throttle valve 5 is opened or closed in accordance with the magnitude of the reference voltage, i.e., the degree of depression of the accelerator pedal 2, whereby there is provided the same effect as attained by the mechanical linkage system of the prior art.
  • a feature of the present invention lies in the electrical connection provided between the accelerator pedal 2 and the throttle valve 5, as well as in the provision of switches 6, 6a and 6b connected with the reference signal transmission line between the reference voltage generator 1 and the throttle valve control elements 3, 4 and 5 so that the changeover of the switches may result in the selection of a reference signal to be supplied to the amplifier 3 and succeeding control elements which control the opening of the throttle valve in accordance with the input signal.
  • FIG. 2 schematically shows an arrangement in shown a reference voltage which the present invention is applied to provide a function of preventing any excess revolution of the automobile engine.
  • the engine is indicated by reference numeral 8, and there is further provided means 9 for generating a reference voltage corresponding to the number of engine revolutions to which the engine 8 should be controlled.
  • the electric signal so generated by the reference voltage generator means 9 is transmitted to the amplifier 3 through the switch 6a.
  • Means for detecting the number of revolutions of the engine 8 is provided to generate a voltage corresponding to the number of revolutions of the engine 8.
  • FIG. 3 shows another application of the present invention in which the arrangement of FIG. 2 is additionally provided with a function of controlling the number of engine revolutions so as to provide the same number of rotation to two clutch surfaces which are to be engaged with each other in order to change over the speed change gear during the running of the vehicle.
  • the arrangement of FIG. 3 includes means 11 for detecting the number of rotations of a clutch plate adjoining to the engine of the vehicle, i.e., a driving side clutch plate and means 12 for detecting the number of rotations of the other clutch surface or plate, i.e., a driven side clutch plate forming the reference clutch surface in this case.
  • a speed change gear changeover signal (a changing signal for the change gear) (not shown) causes the switches 6 and 6a to open while causing the switch 6b to close.
  • the difference between the voltage values of the two detector means 12 and 11 is applied to the amplifier 3 through the switch 6b so that the throttle valve 5 is actuated to open or close by the servo mechanism 4 in accordance with the output of the amplifier 3, and thereby the number of revolutions of the engine 8 is controlled so as to provide the same number of rotations to the two clutch surfaces.
  • a throttle valve controller device for an automobile engine carburetor comprising:
  • first reference means for generating a first electric signal corresponding to the degree of depression of an accelerator pedal in an automobile
  • second reference means for generating at least one reference signal comprising a second electrical signal related to an engine driving parameter of said automobile
  • control means responsive to an input control electric signal for controlling the degree of opening of a throttle valve in said engine carburetor
  • a throttle valve controller device as in claim I wherein said second reference means comprises:
  • a reference voltage generator for producing a reference speed signal related to the desired number of engine revolutions per unit time and an engine speed detector for generating an actual engine s ed signal
  • sai control means being operative to decrease the degree of opening of said throttle valve in response to detecting an engine speed signal larger than said reference speed signal when said plurality of switches are selected to connect said control means to said second reference means.
  • a reference drive speed detector for effectively detecting the number of revolutions per unit time of a driving side clutch plate
  • a load speed detector for effectively detecting the number of revolutions per unit time of a driven side clutch plate
  • control means being supplied with a control signal corresponding to the difference between the number of revolutions per unit time of said driving side clutch plate and that of said driven side clutch plate when said plurality of switches are appropriately selected.
  • a throttle valve controller device as in claim 1 wherein said second reference means comprises:
  • a reference drive speed detector for effectively detecting the number of revolutions per unit time of a driving side clutch plate
  • a load speed detector for effectively detecting the number of revolutions per unit time of a driven side clutch plate
  • control means being supplied with a control signal corresponding to the difference between the number of revolutions per unit time of said driving side clutch plate and that of said driven side clutch plate when said plurality of switches are appropriately selected.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
US3436A 1969-02-05 1970-01-16 Throttle valve controller device for automobile carburetor Expired - Lifetime US3648808A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP44008947A JPS4938772B1 (pt) 1969-02-05 1969-02-05

Publications (1)

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US3648808A true US3648808A (en) 1972-03-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
US3436A Expired - Lifetime US3648808A (en) 1969-02-05 1970-01-16 Throttle valve controller device for automobile carburetor

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US (1) US3648808A (pt)
JP (1) JPS4938772B1 (pt)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3766367A (en) * 1970-10-16 1973-10-16 Wippondenso Co Ltd Constant speed control system for vehicles
US3886915A (en) * 1973-09-28 1975-06-03 Bendix Corp Passive adaptive engine control system for improved vehicle driveability
DE2436982A1 (de) * 1974-08-01 1976-02-12 Teldix Gmbh Anordnung zur einstellung der drosselklappe eines verbrennungsmotors
DE2642738A1 (de) * 1976-09-23 1978-03-30 Bosch Gmbh Robert Verfahren zur regelung des betriebsverhaltens einer brennkraftmaschine in einem vorgegebenen betriebsbereich
DE2753890A1 (de) * 1976-12-09 1978-06-15 United Technologies Corp Anordnung zum verstellen der welle eines kraftstoffreglers entsprechend der gashebelbewegung
DE2732905A1 (de) * 1977-07-21 1979-02-01 Vdo Schindling Einrichtung zum regeln der fahrgeschwindigkeit eines kraftfahrzeugs
DE2751125A1 (de) * 1977-11-16 1979-05-17 Bosch Gmbh Robert Steuereinrichtung fuer eine brennkraftmaschine
DE2754825A1 (de) * 1977-12-09 1979-06-13 Vdo Schindling Einrichtung zum regeln der fahrgeschwindigkeit eines kraftfahrzeugs
DE2754439A1 (de) * 1977-12-07 1979-06-13 Vdo Schindling Einrichtung zum regeln der fahrgeschwindigkeit eines kraftfahrzeugs
EP0043954A2 (de) * 1980-07-11 1982-01-20 ULO-Werk Moritz Ullmann GmbH + Co. KG Geschwindigkeitsbegrenzungsvorrichtung für Kraftfahrzeuge
US4353339A (en) * 1978-12-02 1982-10-12 Vdo Adolf Schindling A.G. Control of the traveling speed of a motor vehicle
US4377222A (en) * 1979-07-16 1983-03-22 Sommer Co. Drive system
US4383510A (en) * 1980-03-07 1983-05-17 Fuji Jukogyo Kabushiki Kaisha System for regulating the engine speed
US4408293A (en) * 1980-12-04 1983-10-04 Jack Avins Automotive control systems for improving fuel consumption
US4432445A (en) * 1980-11-04 1984-02-21 Automotive Products Limited Clutch control systems
DE3416369A1 (de) * 1983-05-04 1984-11-15 Diesel Kiki Co. Ltd., Tokio/Tokyo Einrichtung zum steuern der geschwindigkeit eines fahrzeugs
US4656407A (en) * 1985-06-14 1987-04-07 A.R.A. Manufacturing Company Of Delware, Inc. Electric motor servo control system and method
US4940034A (en) * 1988-01-07 1990-07-10 Robert Bosch Gmbh Control circuit and method for controlling the speed of an electric fuel pump for an internal combustion engine equipped with fuel injection
DE4015828C1 (en) * 1990-05-17 1991-06-06 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De Speed governor for IC engine - has switch fitted to clutch trip rod coupled to injection pump regulating rod

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2192714A (en) * 1937-05-20 1940-03-05 Stewart Warner Corp Electric throttle control
US2661071A (en) * 1950-06-30 1953-12-01 Hoener Lavern George Motor vehicle speed control
US2883975A (en) * 1957-10-23 1959-04-28 Lee M Spetner Automatic speed governor
US3198184A (en) * 1961-01-12 1965-08-03 Donald I Bohn Automatic speed control device
US3270728A (en) * 1962-12-26 1966-09-06 Mizuno Akira Device for driving automotive vehicles at constant speed
US3333463A (en) * 1963-06-27 1967-08-01 Mobil Oil Corp Mileage accumulation dynamometer
US3338225A (en) * 1965-04-22 1967-08-29 John A Nicholson Remote control for an internal combustion engine
US3407793A (en) * 1966-05-20 1968-10-29 Bosch Gmbh Robert Electronic controller for diesel engines
US3476205A (en) * 1967-02-20 1969-11-04 Nippon Denso Co Automatic constant speed maintaining means for an automobile
US3563331A (en) * 1967-12-27 1971-02-16 Nippon Denso Co Apparatus for automatically running automotive vehicles at a set speed

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2192714A (en) * 1937-05-20 1940-03-05 Stewart Warner Corp Electric throttle control
US2661071A (en) * 1950-06-30 1953-12-01 Hoener Lavern George Motor vehicle speed control
US2883975A (en) * 1957-10-23 1959-04-28 Lee M Spetner Automatic speed governor
US3198184A (en) * 1961-01-12 1965-08-03 Donald I Bohn Automatic speed control device
US3270728A (en) * 1962-12-26 1966-09-06 Mizuno Akira Device for driving automotive vehicles at constant speed
US3333463A (en) * 1963-06-27 1967-08-01 Mobil Oil Corp Mileage accumulation dynamometer
US3338225A (en) * 1965-04-22 1967-08-29 John A Nicholson Remote control for an internal combustion engine
US3407793A (en) * 1966-05-20 1968-10-29 Bosch Gmbh Robert Electronic controller for diesel engines
US3476205A (en) * 1967-02-20 1969-11-04 Nippon Denso Co Automatic constant speed maintaining means for an automobile
US3563331A (en) * 1967-12-27 1971-02-16 Nippon Denso Co Apparatus for automatically running automotive vehicles at a set speed

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3766367A (en) * 1970-10-16 1973-10-16 Wippondenso Co Ltd Constant speed control system for vehicles
US3886915A (en) * 1973-09-28 1975-06-03 Bendix Corp Passive adaptive engine control system for improved vehicle driveability
DE2436982A1 (de) * 1974-08-01 1976-02-12 Teldix Gmbh Anordnung zur einstellung der drosselklappe eines verbrennungsmotors
DE2642738A1 (de) * 1976-09-23 1978-03-30 Bosch Gmbh Robert Verfahren zur regelung des betriebsverhaltens einer brennkraftmaschine in einem vorgegebenen betriebsbereich
DE2753890A1 (de) * 1976-12-09 1978-06-15 United Technologies Corp Anordnung zum verstellen der welle eines kraftstoffreglers entsprechend der gashebelbewegung
US4301883A (en) * 1977-07-21 1981-11-24 Vdo Adolf Schindling Ag Device for the control of the traveling speed of a motor vehicle
DE2732905A1 (de) * 1977-07-21 1979-02-01 Vdo Schindling Einrichtung zum regeln der fahrgeschwindigkeit eines kraftfahrzeugs
DE2751125A1 (de) * 1977-11-16 1979-05-17 Bosch Gmbh Robert Steuereinrichtung fuer eine brennkraftmaschine
DE2754439A1 (de) * 1977-12-07 1979-06-13 Vdo Schindling Einrichtung zum regeln der fahrgeschwindigkeit eines kraftfahrzeugs
DE2754825A1 (de) * 1977-12-09 1979-06-13 Vdo Schindling Einrichtung zum regeln der fahrgeschwindigkeit eines kraftfahrzeugs
US4353339A (en) * 1978-12-02 1982-10-12 Vdo Adolf Schindling A.G. Control of the traveling speed of a motor vehicle
US4377222A (en) * 1979-07-16 1983-03-22 Sommer Co. Drive system
US4383510A (en) * 1980-03-07 1983-05-17 Fuji Jukogyo Kabushiki Kaisha System for regulating the engine speed
EP0043954A2 (de) * 1980-07-11 1982-01-20 ULO-Werk Moritz Ullmann GmbH + Co. KG Geschwindigkeitsbegrenzungsvorrichtung für Kraftfahrzeuge
DE3026423A1 (de) * 1980-07-11 1982-02-04 Ulo-Werk Moritz Ullmann Gmbh & Co Kg, 7340 Geislingen Geschwindigkeitsbegrenzungsvorrichtung fuer kraftfahrzeuge
EP0043954A3 (de) * 1980-07-11 1983-11-09 ULO-Werk Moritz Ullmann GmbH + Co. KG Geschwindigkeitsbegrenzungsvorrichtung für Kraftfahrzeuge
US4432445A (en) * 1980-11-04 1984-02-21 Automotive Products Limited Clutch control systems
US4408293A (en) * 1980-12-04 1983-10-04 Jack Avins Automotive control systems for improving fuel consumption
DE3416369A1 (de) * 1983-05-04 1984-11-15 Diesel Kiki Co. Ltd., Tokio/Tokyo Einrichtung zum steuern der geschwindigkeit eines fahrzeugs
US4656407A (en) * 1985-06-14 1987-04-07 A.R.A. Manufacturing Company Of Delware, Inc. Electric motor servo control system and method
US4940034A (en) * 1988-01-07 1990-07-10 Robert Bosch Gmbh Control circuit and method for controlling the speed of an electric fuel pump for an internal combustion engine equipped with fuel injection
DE4015828C1 (en) * 1990-05-17 1991-06-06 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De Speed governor for IC engine - has switch fitted to clutch trip rod coupled to injection pump regulating rod

Also Published As

Publication number Publication date
JPS4938772B1 (pt) 1974-10-21

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