EP0525376A1 - Dispositif de commande en fonction de la charge pour un moteur - Google Patents

Dispositif de commande en fonction de la charge pour un moteur Download PDF

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Publication number
EP0525376A1
EP0525376A1 EP92110519A EP92110519A EP0525376A1 EP 0525376 A1 EP0525376 A1 EP 0525376A1 EP 92110519 A EP92110519 A EP 92110519A EP 92110519 A EP92110519 A EP 92110519A EP 0525376 A1 EP0525376 A1 EP 0525376A1
Authority
EP
European Patent Office
Prior art keywords
actuator
throttle valve
stop
adjustment device
load adjustment
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.)
Withdrawn
Application number
EP92110519A
Other languages
German (de)
English (en)
Inventor
Erik Dipl.-Ing. Maennle (Fh)
Georg Haubner
Hatmut Zoebl
Dr.-Ing. Lieberoth-Leden
Andreas Reppich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0525376A1 publication Critical patent/EP0525376A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F02D11/107—Safety-related aspects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0277—Fail-safe mechanisms, e.g. with limp-home feature, to close throttle if actuator fails, or if control cable sticks or breaks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0296—Throttle control device with stops for limiting throttle opening or closing beyond a certain position during certain periods of operation

Definitions

  • the invention relates to a load adjustment device for a drive machine, in particular a vehicle, with an actuator which determines the performance of the drive machine and which can be adjusted within a normal adjustment range by an actuator which can be controlled by a control device.
  • a load adjustment device of this type intended for a vehicle driven by an internal combustion engine
  • the adjustment position of an operating element such as an accelerator pedal
  • an electromechanical transmission system makes it possible, by means of the electronic control device, to intervene to change the transmission of the actuating position of the accelerator pedal to the actuating position of the actuating element. Such an intervention can e.g.
  • a spring-loaded stop is provided against the idling direction, at which the actuating element acted upon by the return spring is held in a position which determines an increased idling, the so-called emergency idling. which makes it possible, e.g. leave a danger zone in the second gear or go to the nearest workshop.
  • the object of the invention is to remedy these disadvantages of the known load adjustment device.
  • the position of the actuator determined by the stop outside the normal setting range determines an increased idling of the drive machine, which enables emergency driving.
  • this position of the actuator outside the normal setting range determines an increased idling, which is just sufficient for the drive machine not to die under all conceivable circumstances (especially in winter operation with a cold engine).
  • the actuator can be moved beyond its closed position under the action of the spring and the position determined by the stop lies beyond the closed position of the actuator. This has the advantage that if the actuator fails, the actuator is actuated by the spring in the closing direction.
  • the actuator can be moved beyond its maximum open position under the action of the spring and the position determined by the stop lies beyond the open position of the actuator.
  • the invention proves to be particularly advantageous in the case of load adjustment devices in which the actuator is a throttle valve, since to implement the invention over the known load adjusters adjusting devices no additional or specially trained components are required.
  • the stop can expediently be arranged on the throttle valve housing and cooperate with a nose provided on the throttle valve shaft.
  • a further stop which cooperates with another lug of the throttle valve shaft and which can preferably be adjusted can be provided on the throttle valve housing and determines a minimum idle position of the throttle valve within the normal adjustment range of the throttle valve.
  • FIG. 1 and 2 show schematic representations of the throttle valve of a load adjustment device according to the prior art, the throttle valve in FIG. 1 being in its minimum idle position and in FIG. 2 in its emergency idle position determined by the spring-loaded stop
  • FIG. 3 a schematic 4 shows a vertical section through the throttle valve housing of a load adjusting device according to a second embodiment of the invention
  • FIG. 5 shows a plan view of the throttle valve housing according to FIG. 4
  • FIG. 6 shows a detail of FIG. 5 in the direction of Vl.
  • the throttle valve 1 of the known load adjustment device shown in FIGS. 1 and 2 is acted upon by a spring (not shown), the so-called return spring, in the idle adjustment direction (spring force F1
  • the load is adjusted by an electric actuator (not shown), which is controlled by an electronic control device (not shown), which in turn controls the position of an operating element (not shown), e.g. of an accelerator pedal receives corresponding electrical signals.
  • the adjustment range A of the throttle valve 1 extends from the position shown in Fig. 1 in full lines, which determines the minimum idling MLL, to a full load position, e.g. the maximum open position of the throttle valve indicated by dashed lines.
  • a throttle valve lever 3 With the throttle valve shaft 2, a throttle valve lever 3 is connected in a rotationally fixed manner, which, in the idle adjustment range of the throttle valve 1, bears against a stop 5 acted upon by a spring 4 against the idle adjustment direction, the spring force F2 of the spring 4 being greater than the spring force F1 of the return spring.
  • the housing 6 of the spring-loaded stop 5 is fixed in a fixed component 7 by means of a screw connection.
  • the spring-loaded stop 5 assumes its fully extended position (FIG. 2), so that the throttle valve 1 is held in a position which determines an increased idling ELL, the so-called emergency idling, which means emergency operation, e.g. in second gear.
  • the screw connection between the stop housing 6 and the stationary component 7 allows the stop 5 to be adjusted and thus the opening angle of the throttle valve 1 desired for the increased idling ELL.
  • Another adjustable stop 8 screwed into the stationary component 7 defines the position of the throttle valve 1 which determines the minimum idling MLL.
  • This stop can also be formed by the stop housing 6, which saves one component.
  • the throttle valve 11 is in turn acted upon by a spring (not shown) with a spring force F1 in the idling setting direction.
  • the normal adjustment range A of the throttle valve 11, within which the adjustment takes place by means of the actuator, extends from the position indicated here in dotted lines, which determines the minimum idling MLL, to the full-load position corresponding to the maximum open position (90 ° position), shown in broken lines.
  • the throttle valve 11 is pivoted by said spring in the idle setting direction out of the normal setting range A into a position beyond the maximum closed position (0 ° position), which determines the increased idling or emergency idling ELL, in which the throttle valve lever 13 connected to the throttle valve shaft 12 comes to rest against a stop 15 screwed into a fixed component 14.
  • This stop 15 could also be a cast nose, ie a non-adjustable stop, with sufficiently precise manufacture.
  • the position shown in full lines, which determines the increased idling or emergency idling ELL, can be set as desired in a preferred embodiment by the screw connection between the fixed component 14 and the stop 15.
  • this embodiment has the advantage that if the actuator fails, the throttle valve 11 is actuated by the spring in the direction of closing.
  • the throttle valve 21 adjustable by the actuator within the normal adjustment range A is by a spring (not shown) against the idle direction, i.e. in full load direction, acted upon (F3).
  • the throttle valve 21 is moved by the spring in the full-load setting direction out of the normal setting range A to a position beyond the maximum open position (90 ° position) that determines the increased idling or emergency idling ELL (in full lines shown) pivoted, in which a lug 23 provided on the throttle valve shaft 22 bears against a stop 25 arranged on the throttle valve housing 24.
  • a further lug 26 provided on the throttle valve shaft 22 interacts with a further stop 27 arranged on the throttle valve housing 24, which defines the position of the throttle valve 21 which determines the minimum idling MLL.
  • the lugs 23 and 26 can also be combined into a single lug.
  • the stops 25 and 27 are adjustable in a preferred embodiment, but could in principle also be non-adjustable stops.
  • a particular advantage of this embodiment is that irrespective of the direction in which the actuator adjusts in excess in the event of a fault, the throttle valve is always moved into a closed position.
  • the illustrated and described embodiments are only to be regarded as exemplary embodiments and the invention is in no way limited to these exemplary embodiments. So the invention is also applicable to load adjustment devices in which the actuator is not a throttle valve, but e.g. is the control rod of the injection pump of a diesel engine or the control lever of an electric drive machine.
  • the spring acting on the actuator can be of any type, e.g. a tension spring, a compression spring or a torsion spring, and on the actuator itself or on a component connected to it, e.g. 3 or the throttle valve shaft.
  • the actuator of the load adjustment device does not necessarily have to be an electric actuator, but could just as well also be a hydraulic or pneumatic drive, a lifting magnet or the like.
  • the actuator can be attached to the actuator directly or via an actuator connected to it, e.g. a throttle lever, the throttle valve shaft or the like.
EP92110519A 1991-07-27 1992-06-23 Dispositif de commande en fonction de la charge pour un moteur Withdrawn EP0525376A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19914124973 DE4124973A1 (de) 1991-07-27 1991-07-27 Lastverstelleinrichtung fuer eine antriebsmaschine
DE4124973 1991-07-27

Publications (1)

Publication Number Publication Date
EP0525376A1 true EP0525376A1 (fr) 1993-02-03

Family

ID=6437175

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92110519A Withdrawn EP0525376A1 (fr) 1991-07-27 1992-06-23 Dispositif de commande en fonction de la charge pour un moteur

Country Status (3)

Country Link
EP (1) EP0525376A1 (fr)
JP (1) JP3363176B2 (fr)
DE (1) DE4124973A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2706971A1 (fr) * 1993-06-24 1994-12-30 Weber Srl
WO1995035440A2 (fr) * 1994-06-18 1995-12-28 Ab Elektronik Gmbh Dispositif de clapet de carburateur
WO2001029382A1 (fr) * 1999-10-15 2001-04-26 Siemens Canada Limited Tringlerie de papillon a commande electronique ayant un mecanisme pour fonctionnement degrade
EP1170487A2 (fr) * 2000-07-05 2002-01-09 Visteon Global Technologies, Inc. Système de commande électronique de papillon à frottement et usure réduits
WO2016025069A1 (fr) * 2014-08-15 2016-02-18 Illinois Tool Works Inc. Soupape de thermostat et procédé de fonctionnement d'une soupape de thermostat

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5419293A (en) * 1993-02-01 1995-05-30 Fuji Jukogyo Kabushiki Kaisha Fail-safe system of an automatic driving system for a motor vehicle
DE9409891U1 (de) * 1994-06-18 1994-08-11 A B Elektronik Gmbh Anordnung zur Notfahrstellung eines Drosselklappenelements
DE10235049A1 (de) 2002-07-31 2004-02-19 Ab Elektronik Gmbh Luftklappensystem mit Magnetstellfeder

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE521707C (de) * 1924-10-11 1931-03-26 Wilhelm Eberhard Ernst Einrichtung zur Regelung der Gemischbildung bei Spritzvergasern
DE3800087A1 (de) * 1988-01-05 1989-07-13 Vdo Schindling Vorrichtung mit einem kanal fuer einen kraftstoff-luftgemischstrom oder einen luftstrom und mit einer im kanal angeordneten drosselklappe

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE521707C (de) * 1924-10-11 1931-03-26 Wilhelm Eberhard Ernst Einrichtung zur Regelung der Gemischbildung bei Spritzvergasern
DE3800087A1 (de) * 1988-01-05 1989-07-13 Vdo Schindling Vorrichtung mit einem kanal fuer einen kraftstoff-luftgemischstrom oder einen luftstrom und mit einer im kanal angeordneten drosselklappe

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2706971A1 (fr) * 1993-06-24 1994-12-30 Weber Srl
WO1995035440A2 (fr) * 1994-06-18 1995-12-28 Ab Elektronik Gmbh Dispositif de clapet de carburateur
WO1995035440A3 (fr) * 1994-06-18 1996-02-29 A B Elektronik Gmbh Dispositif de clapet de carburateur
US5752484A (en) * 1994-06-18 1998-05-19 Ab Elektronik Gmbh Throttle valve device
WO2001029382A1 (fr) * 1999-10-15 2001-04-26 Siemens Canada Limited Tringlerie de papillon a commande electronique ayant un mecanisme pour fonctionnement degrade
US6513491B1 (en) 1999-10-15 2003-02-04 Siemens Vdo Automotive Inc. Electronic throttle control linkage with limp home mechanism
EP1170487A2 (fr) * 2000-07-05 2002-01-09 Visteon Global Technologies, Inc. Système de commande électronique de papillon à frottement et usure réduits
EP1170487A3 (fr) * 2000-07-05 2002-05-08 Visteon Global Technologies, Inc. Système de commande électronique de papillon à frottement et usure réduits
WO2016025069A1 (fr) * 2014-08-15 2016-02-18 Illinois Tool Works Inc. Soupape de thermostat et procédé de fonctionnement d'une soupape de thermostat
US10683948B2 (en) 2014-08-15 2020-06-16 Illinois Tool Works Inc. Thermostat valve and method for operating a thermostat valve

Also Published As

Publication number Publication date
DE4124973A1 (de) 1993-01-28
JPH05209538A (ja) 1993-08-20
JP3363176B2 (ja) 2003-01-08

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