EP0675276B1 - Control for a throttle valve - Google Patents

Control for a throttle valve Download PDF

Info

Publication number
EP0675276B1
EP0675276B1 EP95101535A EP95101535A EP0675276B1 EP 0675276 B1 EP0675276 B1 EP 0675276B1 EP 95101535 A EP95101535 A EP 95101535A EP 95101535 A EP95101535 A EP 95101535A EP 0675276 B1 EP0675276 B1 EP 0675276B1
Authority
EP
European Patent Office
Prior art keywords
throttle valve
actuator
movement
potentiometer
operating system
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.)
Revoked
Application number
EP95101535A
Other languages
German (de)
French (fr)
Other versions
EP0675276A1 (en
Inventor
Josef Büchl
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.)
Audi AG
Original Assignee
Audi AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6514613&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0675276(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Audi AG filed Critical Audi AG
Publication of EP0675276A1 publication Critical patent/EP0675276A1/en
Application granted granted Critical
Publication of EP0675276B1 publication Critical patent/EP0675276B1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Images

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
    • F02D11/106—Detection of demand or actuation

Definitions

  • the invention relates to a control for a throttle valve according to the preamble of claim 1.
  • a generic device is known from DE-OS 40 31 003.
  • a control for a throttle valve in which the drive for an engine control unit is used to adjust the idle position of the throttle valve.
  • the potentiometer assigned to this motor control part measures accordingly thus a swiveling of a partial area of the possible total swiveling the throttle valve.
  • the drive provided in this internal state of the art for an engine control part is used to set the idle position of the throttle valve. That this The correspondingly assigned motor control part therefore measures a potentiometer Swiveling only a part of the possible total swiveling the throttle valve shaft.
  • a potentiometer switch is known, which is used for recording of the throttle valve angle is used.
  • the potentiometer has three side by side arranged resistance tracks of different lengths. With help of a Switch is chosen between these three resistance tracks. Such Potentiometer switching is very complex and expensive.
  • the object of the invention is to reduce this effort.
  • the Electronics only the actual value sensor is exchanged in such a way that a sensor,
  • a potentiometer is used, which as before on the Adjustment path that is roughly assigned to the idle control range can, maintains the previous values while over the remaining travel of the potentiometer its resistance value does not change and, accordingly, none Has influenced.
  • the potentiometer is short-circuited.
  • the figure shows a schematic representation of the structure of a throttle valve control.
  • a cable 12 is mechanically actuated via an accelerator pedal 10.
  • the cable 12 moves when the accelerator pedal is depressed into that indicated by arrow 14 Direction.
  • an actuator 16 is counter to an action by a spring 24, which is fixed to a stationary part 26, moved in the direction of this arrow.
  • the actuator 16 has a stop lug 18 which, when not depressed Accelerator pedal 10 comes into contact with a first stop 20 and on the other hand prevents the deflection by the accelerator pedal at a stop 22.
  • the minimum deflection corresponds
  • the stop 22, which corresponds to the maximum deflection is the Adjustment path of the accelerator pedal and the mechanical adjustment path of the throttle valve.
  • the mechanical connection 12 uses an electrical connection which depressing the accelerator pedal in a corresponding shift of the Actuator 30 implements.
  • a driver 28 of the actuator 16 presses an actuator 30, the rigid with a throttle valve 36 that opens or closes a passage 34, connected.
  • the actuator is in the direction of the minimum opening Throttle valve 36 is pulled by a spring 32, which on the fixed part 26th is stored.
  • an actuator 40 acts as a part on the actuator 30 an electromechanical control system that also has a driver press the actuator 30 in the opening direction of the throttle valve 36 can.
  • the motor control part 40 can be driven, for example by a drive 44 Electric motor operated, which moves a gear 46 on a rack 42 works and thus the rack and the rigidly connected to it Motor control can move.
  • Stops 48 and 50 are also assigned to the motor control part, the stop 48 limits the movement in the closing direction of the throttle valve and sets one Idle stop represents the stop 50 limits the movement of the engine control 40 in the opening direction of the throttle valve 36.
  • the Stop 50 positioned so that it the maximum position of the opening in Limited idle case.
  • the Stop 50 arranged such that it the maximum opening of the throttle valve limited at full load.
  • An evaluation electronics 56 is provided to control the drive 44 Information among other things from two actual value sensors, which are in the present Traps designed as potentiometers 52 and 54 are supplied.
  • the Potentiometer 52 detects the actual position value of the actuator 30, the potentiometer 54 detects the position of the motor control part 40.
  • the evaluation electronics 56 supplies the information to the via a line 58 Drive 44, and drive 44 is driven to in the schematic Representation in the figure, the motor control part 40 to the right or left for position control to move the throttle valve 36.
  • the minimum opening of the engine control element and thus the throttle valve 36 is through the stop 48 specified, so that mechanical jamming prevents this by closing the throttle valve too far or a appropriate jamming of the drive elements could occur.
  • a stop 50 limits the maximum deflection, the can Throttle valve 36 cannot be opened by the drive 44. Another Opening of the throttle valve 36 in the known device can only by depressing the accelerator pedal 10 happen.
  • the potentiometer 52 which is the total travel of the throttle valve must scan, set to a trajectory of 90 °.
  • the potentiometer 54 which is assigned to the motor control element 40, measures accordingly approximately only a maximum swivel range of 25 °, above furthermore, the stop 38 comes out of contact with the motor control part 40, which Motor control part 40 cannot be opened any further.
  • potentiometer 54 is able to resolve relatively accurately and accurately Information about the evaluation electronics 54 and the line 58 to the Forward drive 54 to perform the position control of the throttle valve 36.
  • the potentiometer 54 must now have a control range of Cover 90 ° and supplies 40 other values for the position of the motor control element the evaluation electronics 56. It is therefore necessary to use vehicles with cruise control to be equipped with a different evaluation electronics 56 than Vehicles without cruise control. Also the potentiometer 54 must be interpreted differently, since vehicles in which the drive 44th only the idle control takes over, the first 25 ° must measure exactly, while vehicles with cruise control other potentiometers received because the throttle valve angle of about 90 ° must be resolved.
  • the potentiometer 54 is designed that on the one hand no electrically different potentiometers are necessary and on the other hand also maintain the evaluation electronics 56 unchanged can be.
  • the potentiometer 54 corresponds to its resistance value the position of the motor actuator 40 changes over the range in which an idle setting takes place.
  • the movement of the motor control part 40 in practice a swiveling, becomes transferred to the wiper of the potentiometer 54 and the resultant Resistance value is queried via evaluation electronics 56.
  • the design of the potentiometer 56 is now designed so that that over about 25 ° pivoting angle of the motor actuator 40, the resistance value changes, preferably linearly from 0 to its maximum value, and that a further pivoting between about 25 ° and 90 ° to none Change or at most a negligible change in the resistance value of the potentiometer 54 leads.
  • the first area is Idle control area assigned.
  • potentiometer 54 can be the same in both embodiments Perform tasks, and the evaluation electronics 56 need not be changed will.
  • potentiometer 54 is such that the functionless way the resistance path is simply short-circuited, so that a further sliding of the grinder on the resistance track the measured Resistance does not change.

Description

Die Erfindung bezieht sich auf eine Ansteuerung für eine Drosselklappe gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a control for a throttle valve according to the preamble of claim 1.

Eine gattungsgemäße Einrichtung ist aus der DE-OS 40 31 003 bekannt. Dort ist eine Ansteuerung für eine Drosselklappe beschrieben, bei der der Antrieb für ein Motorstellteil zur Einstellung der Leerlaufstellung der Drosselklappe dient. Das diesem Motorstellteil dementsprechend zugeordnete Potentiometer mißt somit eine Verschwenkung eines Teilbereiches der möglichen Gesamtverschwenkung der Drosselklappe.A generic device is known from DE-OS 40 31 003. There describes a control for a throttle valve, in which the drive for an engine control unit is used to adjust the idle position of the throttle valve. The potentiometer assigned to this motor control part measures accordingly thus a swiveling of a partial area of the possible total swiveling the throttle valve.

Eine derartige Ansteuerung für eine Drosselklappe ist auch interner Stand der Technik und somit nicht Gegenstand der Erfindung.Such control for a throttle valve is also the internal state of the Technology and therefore not the subject of the invention.

Der bei diesem internen Stand der Technik vorgesehene Antrieb für ein Motorstellteil dient zur Einstellung der Leerlaufstellung der Drosselklappe. Das diesem Motorstellteil dementsprechend zugeordnete Potentiometer mißt somit eine Verschwenkung nur eines Teilbereiches der möglichen Gesamtverschwenkung der Drosselklappenwelle.The drive provided in this internal state of the art for an engine control part is used to set the idle position of the throttle valve. That this The correspondingly assigned motor control part therefore measures a potentiometer Swiveling only a part of the possible total swiveling the throttle valve shaft.

Unter bestimmten Anwendungsfällen, beispielsweise bei Einsatz einer Geschwindigkeitsregelanlage, ist es wünschenswert, den Antrieb nicht allein im Bereich der Leerlaufverstellung der Drosselklappe zu nutzen, sondern über den Gesamtbewegungsweg der Drosselklappe einzusetzen. Bedingt durch diesen vergrößerten Potentiometernutzhub nimmt die Auflösung des Istwertsensors in Abhängigkeit von dem Maximalwinkel der Drosselklappe ab. Under certain applications, for example when using a cruise control system, it is desirable not to drive the drive alone Use the range of the idle adjustment of the throttle valve, but via the Use the total movement path of the throttle valve. Due to this increased potentiometer useful stroke takes the resolution of the actual value sensor Dependence on the maximum angle of the throttle valve.

Diese erfordert dementsprechend eine Anpassung der Elektronik für die Auswertung der Potentiometerstellung, die verhältnismäßig aufwendig ist.Accordingly, this requires an adaptation of the electronics for the evaluation the potentiometer position, which is relatively expensive.

Aus der FR-8509801 ist eine Potentiometerschalter bekannt, die zur Aufnahme des Drosselklappenwinkels dient. Das Potentiometer weist drei nebeneinander angeordnete Widerstandsbahnen unterschiedlicher Länge auf. Mit Hilfe eines Schalters wird zwischen diesen drei Widerstandsbahnen gewählt. Eine solche Potentiometerschaltung ist sehr aufwendig und kostspielig. From FR-8509801 a potentiometer switch is known, which is used for recording of the throttle valve angle is used. The potentiometer has three side by side arranged resistance tracks of different lengths. With help of a Switch is chosen between these three resistance tracks. Such Potentiometer switching is very complex and expensive.

Aufgabe der Erfindung ist es, diesen Aufwand zu verringern.The object of the invention is to reduce this effort.

Die Aufgabe wird gelöst durch die Merkmale des Hauptanspruch.The object is achieved by the features of the main claim.

Erfindungsgemäß ist vorgesehen, daß statt einer speziellen Anpassung der Elektronik lediglich der Istwertnehmer ausgetauscht wird derart, daß ein Sensor, beispielsweise ein Potentiometer eingesetzt wird, der wie bisher auf dem Verstellweg, der in etwa dem Bereich der Leerlaufregelung zugeordnet werden kann, die bisherigen Werte beibehält, während über den Restweg des Potentiometers sein Widerstandswert sich nicht ändert und dementsprechend keinen Einflußt hat. Dabei wird das Potentiometer Kurzgeschlossen.According to the invention it is provided that the Electronics only the actual value sensor is exchanged in such a way that a sensor, For example, a potentiometer is used, which as before on the Adjustment path that is roughly assigned to the idle control range can, maintains the previous values while over the remaining travel of the potentiometer its resistance value does not change and, accordingly, none Has influenced. The potentiometer is short-circuited.

Bevorzugte Ausführungsformen sind in den Unteransprüchen dargestellt.Preferred embodiments are presented in the subclaims.

Im folgenden wird die Erfindung anhand der einzigen Figur im Detail erläutert.The invention is explained in detail below with reference to the single figure.

Die Figur zeigt in schematischer Darstellung den Aufbau einer Drosselklappensteuerung.The figure shows a schematic representation of the structure of a throttle valve control.

Über ein Gaspedal 10 wird mechanisch ein Seilzug 12 betätigt. Der Seilzug 12 bewegt sich bei Niedertreten des Gaspedals in die durch den Pfeil 14 angegebene Richtung.A cable 12 is mechanically actuated via an accelerator pedal 10. The cable 12 moves when the accelerator pedal is depressed into that indicated by arrow 14 Direction.

Dadurch wird ein Stellteil 16 entgegen einer Beaufschlagung durch eine Feder 24, die an einem ortsfesten Teil 26 fixiert ist, in Richtung dieses Pfeiles bewegt. Das Stellteil 16 besitzt eine Anschlagnase 18, die bei nicht niedergedrücktem Gaspedal 10 an einem ersten Anschlag 20 in Anlage kommt und andererseits die Auslenkung durch das Gaspedal an einem Anschlag 22 verhindert. Der Weg der Nase 18 zwischen den Anschlägen 20, der der Mindestauslenkung entspricht, und dem Anschlag 22, der der Maximalauslenkung entspricht, ist der Verstellweg des Gaspedals und der mechanische Verstellweg der Drosselklappe. As a result, an actuator 16 is counter to an action by a spring 24, which is fixed to a stationary part 26, moved in the direction of this arrow. The actuator 16 has a stop lug 18 which, when not depressed Accelerator pedal 10 comes into contact with a first stop 20 and on the other hand prevents the deflection by the accelerator pedal at a stop 22. Of the Path of the nose 18 between the stops 20, the minimum deflection corresponds, and the stop 22, which corresponds to the maximum deflection, is the Adjustment path of the accelerator pedal and the mechanical adjustment path of the throttle valve.

Bei der Verwendung eines sogenannten elektronische Gaspedales käme statt der mechanischen Verbindung 12 eine elektrische Verbindung zum Einsatz, die ein Niederdrücken des Gaspedales in eine entsprechende Verschiebung des Betätigungsgliedes 30 umsetzt.When using a so-called electronic accelerator pedal would take place the mechanical connection 12 uses an electrical connection which depressing the accelerator pedal in a corresponding shift of the Actuator 30 implements.

Ein Mitnehmer 28 des Stellteiles 16 drückt ein Betätigungsglied 30 auf, das starr mit einer Drosselklappe 36, die einen Durchlaß 34 öffnet oder schließt, verbunden. Das Betätigungsglied wird in Richtung der Minimalöffnung der Drosselklappe 36 durch eine Feder 32 gezogen, die an dem ortsfesten Teil 26 gelagert ist.A driver 28 of the actuator 16 presses an actuator 30, the rigid with a throttle valve 36 that opens or closes a passage 34, connected. The actuator is in the direction of the minimum opening Throttle valve 36 is pulled by a spring 32, which on the fixed part 26th is stored.

Andererseits wirkt auf das Betätigungsglied 30 ein Motorstellteil 40 als Teil eines elektromechanischen Stellsystems ein, das über einen Mitnehmer ebenfalls das Betätigungsglied 30 in Öffnungsrichtung der Drosselklappe 36 drücken kann. Das Motorstellteil 40 kann über einen Antrieb 44, beispielsweise einen Elektromotor betätigt werden, der ein Zahnrad 46 bewegt, das auf einer Zahnstange 42 arbeitet und somit die Zahnstange und das mit ihr starr verbundene Motorstellteil bewegen kann.On the other hand, an actuator 40 acts as a part on the actuator 30 an electromechanical control system that also has a driver press the actuator 30 in the opening direction of the throttle valve 36 can. The motor control part 40 can be driven, for example by a drive 44 Electric motor operated, which moves a gear 46 on a rack 42 works and thus the rack and the rigidly connected to it Motor control can move.

Auch dem Motorstellteil sind Anschläge 48 und 50 zugeordnet, der Anschlag 48 begrenzt die Bewegung in Schließrichtung der Drosselklappe und stellt einen Leerlaufanschlag dar, der Anschlag 50 beschränkt die Bewegung des Motorstellteiles 40 in Öffnungsrichtung der Drosselklappe 36.Stops 48 and 50 are also assigned to the motor control part, the stop 48 limits the movement in the closing direction of the throttle valve and sets one Idle stop represents the stop 50 limits the movement of the engine control 40 in the opening direction of the throttle valve 36.

Wird der Antrieb 44 nur im Rahmen einer Leerlaufregelung eingesetzt, wird der Anschlag 50 derart positioniert, daß er die Maximalstellung der Öffnung im Leerlauffall begrenzt. Zur Verwendung des Antriebes 44 auch im Rahmen einer Geschwindigkeitsregelanlage, wie es einen Teil der Erfindung bildet, ist der Anschlag 50 derart angeordnet, daß er die Maximalöffnung der Drosselklappe am Vollastausschlag begrenzt.If the drive 44 is used only as part of an idle control, the Stop 50 positioned so that it the maximum position of the opening in Limited idle case. To use the drive 44 also in the context of a Cruise control system, as it forms part of the invention, is the Stop 50 arranged such that it the maximum opening of the throttle valve limited at full load.

Zur Ansteuerung des Antriebs 44 ist eine Auswertelektronik 56 vorgesehen, der Informationen unter anderem von zwei Istwertaufnehmern, die im vorliegenden Falle als Potentiometer 52 und 54 ausgebildet sind, zugeführt werden. Das Potentiometer 52 erfaßt den tatsächlichen Positionswert des Betätigungsgliedes 30, das Potentiometer 54 erfaßt die Position des Motorstellteiles 40. An evaluation electronics 56 is provided to control the drive 44 Information among other things from two actual value sensors, which are in the present Traps designed as potentiometers 52 and 54 are supplied. The Potentiometer 52 detects the actual position value of the actuator 30, the potentiometer 54 detects the position of the motor control part 40.

Die Funktion der dargestellten Teile ist folgende: Bei Niederdrücken des Gaspedales 10 in Pfeilrichtung 14 wird das Stellteil 16 ebenfalls in Pfeilrichtung entgegen der Federkraft 24 gezogen, über den Mitnehmer 28 wird das Betätigungsglied 30 entgegen der Federkraft 32 in eine Position gezogen, die die Drosselklappe 36 öffnet.The function of the parts shown is as follows: When the accelerator pedal is depressed 10 in the direction of arrow 14, the actuator 16 is also in the direction of the arrow pulled against the spring force 24, the actuator 28 is the actuator 30 pulled against the spring force 32 in a position that the Throttle valve 36 opens.

Bei nicht betätigtem Gaspedal 10 kommt die Nase 18 des Stellteiles 16 an den Anschlag 20 zu liegen, und der Öffnungsgrad der Drosselklappe 36 wird über eine Leerlaufregelung über den Antrieb 44 eingestellt.When the accelerator pedal 10 is not actuated, the nose 18 of the actuating part 16 comes to the Stop 20 to lie, and the degree of opening of the throttle valve 36 is about an idle control is set via the drive 44.

Die Auswertelektronik 56 liefert über eine Leitung 58 die Information an den Antrieb 44, und der Antrieb 44 wird angesteuert, um in der schematischen Darstellung in der Figur das Motorstellteil 40 nach rechts oder links zur Lageregelung der Drosselklappe 36 zu bewegen. Eine Bewegung in der dargestellten Abbildung nach rechts, also in Öffnungsrichtung der Drosselklappe 36 nimmt durch den Anschlag 38 das Betätigungsglied 30 mit und öffnet die Drosselklappe 36 weiter, die Anlage des Betätigungsgliedes 30 am Anschlag 28 wird dadurch aufgehoben.The evaluation electronics 56 supplies the information to the via a line 58 Drive 44, and drive 44 is driven to in the schematic Representation in the figure, the motor control part 40 to the right or left for position control to move the throttle valve 36. A movement in the illustrated Figure to the right, i.e. in the opening direction of the throttle valve 36 through the stop 38 with the actuator 30 and opens the throttle valve 36 further, the system of the actuator 30 at the stop 28 thereby canceled.

Die Mindestöffnung des Motorstellteils und damit der Drosselklappe 36 ist durch den Anschlag 48 vorgegeben, damit wird ein mechanisches Verklemmen verhindert, das durch ein zu weites Schließen der Drosselklappe oder ein entsprechendes Verklemmen der Antriebsorgane eintreten könnte. Wie oben ausgeführt, begrenzt ein Anschlag 50 die Maximalauslenkung, weiter kann die Drosselklappe 36 nicht durch den Antrieb 44 geöffnet werden. Eine weitere Öffnung der Drosselklappe 36 bei der bekannten Vorrichtung kann nur durch das Niederdrücken des Gaspedals 10 geschehen.The minimum opening of the engine control element and thus the throttle valve 36 is through the stop 48 specified, so that mechanical jamming prevents this by closing the throttle valve too far or a appropriate jamming of the drive elements could occur. As above executed, a stop 50 limits the maximum deflection, the can Throttle valve 36 cannot be opened by the drive 44. Another Opening of the throttle valve 36 in the known device can only by depressing the accelerator pedal 10 happen.

Da in der Praxis die hier aufgezeigte Vorrichtung bei Drosselklappen in Drehbewegungen umgesetzt werden und die Drosselklappe etwa einen Winkel von 90° überstreicht in der Bewegungsbahn von der Schließstellung zur Öffnungsstellung, ist das Potentiometer 52, das den Gesamtweg der Drosselklappe abtasten muß, etwa auf eine Bewegungsbahn von 90° eingestellt. Since in practice the device shown here with throttle valves in rotary movements be implemented and the throttle valve at an angle of approximately 90 ° sweeps in the movement path from the closed position to the open position, is the potentiometer 52, which is the total travel of the throttle valve must scan, set to a trajectory of 90 °.

Das Potentiometer 54, das dem Motorstellteil 40 zugeordnet ist, mißt dementsprechend in etwa nur einen Verschwenkbereich von maximal 25°, darüber hinaus kommt der Anschlag 38 außer Anlage von dem Motorstellteil 40, das Motorstellteil 40 kann nicht weiter geöffnet werden.The potentiometer 54, which is assigned to the motor control element 40, measures accordingly approximately only a maximum swivel range of 25 °, above furthermore, the stop 38 comes out of contact with the motor control part 40, which Motor control part 40 cannot be opened any further.

Durch diese entsprechende Auslenkung des Weges des Potentiometers 54 ist das Potentiometer 54 in der Lage, verhältnismäßig exakt aufzulösen und genaue Informationen über die Auswertelektronik 54 und die Leitung 58 an den Antrieb 54 weiterzuleiten, um die Lageregelung der Drosselklappe 36 durchzuführen.This corresponding deflection of the path of the potentiometer 54 is the potentiometer 54 is able to resolve relatively accurately and accurately Information about the evaluation electronics 54 and the line 58 to the Forward drive 54 to perform the position control of the throttle valve 36.

Diese bekannte Anordnung zur Ansteuerung einer Drosselklappe soll nun dahingehend abgeändert werden, daß der Antrieb 44 nicht nur für die Leerlaufeinstellung der Drosselklappe 36 zuständig ist, sondern im Rahmen beispielsweise einer Geschwindigkeitsregelanlage die Drosselklappe 36 bis in ihre Maximalöffnungsstellung drücken kann, der Regelbereich über den Antrieb 44 umfaßt somit die gesamten in etwa 90° der Drosselklappenöffnung.This known arrangement for controlling a throttle valve is now intended be modified so that the drive 44 not only for idle adjustment the throttle valve 36 is responsible, but in the frame, for example a cruise control system, the throttle valve 36 in their Can press the maximum opening position, the control range via the drive 44 thus comprises the entire throttle valve opening at approximately 90 °.

Dementsprechend muß das Potentiometer 54 nunmehr einen Regelbereich von 90° abdecken und liefert für die Stellung des Motorstellteils 40 andere Werte an die Auswerteelektronik 56. Damit ist es notwendig, Fahrzeuge mit Geschwindigkeitsregelanlage mit einer anderen Auswertelektronik 56 auszurüsten als Fahrzeuge ohne Geschwindigkeitsregelanlage. Auch das Potentiometer 54 muß unterschiedlich ausgelegt werden, da Fahrzeuge, bei denen der Antrieb 44 lediglich die Leerlaufregelung übernimmt, die ersten 25° genau messen müssen, während Fahrzeuge mit Geschwindigkeitsregelanlage andere Potentiometer erhalten, da der Drosselklappenwinkel von etwa 90° aufgelöst werden muß.Accordingly, the potentiometer 54 must now have a control range of Cover 90 ° and supplies 40 other values for the position of the motor control element the evaluation electronics 56. It is therefore necessary to use vehicles with cruise control to be equipped with a different evaluation electronics 56 than Vehicles without cruise control. Also the potentiometer 54 must be interpreted differently, since vehicles in which the drive 44th only the idle control takes over, the first 25 ° must measure exactly, while vehicles with cruise control other potentiometers received because the throttle valve angle of about 90 ° must be resolved.

Erfindungsgemäß ist vorgesehen, daß das Potentiometer 54 so gestaltet wird, daß zum einen keine elektrisch unterschiedlichen Potentiometer notwendig sind und zum anderen auch die Auswertelektronik 56 unverändert beibehalten werden kann.According to the invention, it is provided that the potentiometer 54 is designed that on the one hand no electrically different potentiometers are necessary and on the other hand also maintain the evaluation electronics 56 unchanged can be.

Dazu ist vorgesehen, daß das Potentiometer 54 seinen Widerstandswert entsprechend der Stellung des Motorstellteils 40 über den Bereich ändert, in dem eine Leerlaufeinstellung stattfindet. For this purpose, it is provided that the potentiometer 54 corresponds to its resistance value the position of the motor actuator 40 changes over the range in which an idle setting takes place.

Die Bewegung des Motorstellteils 40, in der Praxis eine Verschwenkung, wird auf den Schleifer des Potentiometers 54 übertragen und der dadurch erhaltene Widerstandswert wird über die Auswertelektronik 56 abgefragt.The movement of the motor control part 40, in practice a swiveling, becomes transferred to the wiper of the potentiometer 54 and the resultant Resistance value is queried via evaluation electronics 56.

Die konstruktive Ausführung des Potentiometers 56 wird nunmehr so ausgelegt, daß über etwa 25° Verschwenkungswinkel des Motorstellteils 40 der Widerstandswert sich ändert, vorzugsweise linear von 0 bis zu seinem Maximalwert, und daß eine weitere Verschwenkung zwischen etwa 25° und 90° zu keinerlei Änderung oder allenfalls zu einer vernachlässigbaren Änderung des Widerstandswertes des Potentiometers 54 führt. Der erste Teilbereich ist dabei dem Leerlaufregelungsbereich zugeordnet.The design of the potentiometer 56 is now designed so that that over about 25 ° pivoting angle of the motor actuator 40, the resistance value changes, preferably linearly from 0 to its maximum value, and that a further pivoting between about 25 ° and 90 ° to none Change or at most a negligible change in the resistance value of the potentiometer 54 leads. The first area is Idle control area assigned.

Damit kann das Potentiometer 54 in beiden Ausführungsformen die gleichen Aufgaben erfüllen, und auch die Auswertelektronik 56 muß nicht abgeändert werden.Thus, the potentiometer 54 can be the same in both embodiments Perform tasks, and the evaluation electronics 56 need not be changed will.

Die konkrete Ausführung des Potentiometers 54 ist derart, daß über den funktionslosen Weg die Widerstandsbahn einfach kurzgeschlossen wird, so daß ein weiteres Gleiten des Schleifers auf der Widerstandsbahn den gemessenen Widerstand nicht ändert.The specific design of the potentiometer 54 is such that the functionless way the resistance path is simply short-circuited, so that a further sliding of the grinder on the resistance track the measured Resistance does not change.

Claims (3)

  1. Control device for a throttle valve (36) in the intake wing (34) of an internal combustion engine, having
    an accelerator pedal (10) which is connected to an operating element (16),
    an actuator (30, 38) which is adapted to be moved by the operating element (16) via a driving dog (28) in the opening direction of the throttle valve (36), said actuator being positively connected to the throttle valve and by its movement determining the degree to which the throttle valve opens,
    an electromechanical operating system (40, 42, 44, 46) which is adapted to be actuated by a drive (44) and incorporates a driving dog (40) which pushes the actuator (30, 38) in the throttle valve opening direction,
    an application device (32) which pulls the actuator (30, 38) in the direction of closure of the throttle valve (36) and thus brings the actuator (30, 38) to bear against the operating element (28) or the electromechanical operating system (40),
    a stop (48) in the throttle valve's closure direction, which constrains the movement of the electromechanical operating system (40) in the closure direction by way of a minimum no-load stop,
    a stop (50) in the opening direction of the throttle valve (36), which constrains the movement of the actuator in the opening direction by way of a full-load stop,
    an actual-value sensor (52) associated with the movement of the actuator,
    an actual-value sensor (54) which is configured as a potentiometer and is associated with the movement of the electromechanical operating system (40),
    an electronic evaluator (56) to which the signals from the actual-value sensors (52, 54) are sent,
    characterised in that
    the actual-value sensor associated with the movement of the electromechanical operating system (40) corresponding to the no-load control system varies its electrical output value by a first characteristic curve over a first sub-section of the total path travelled, in dependence on the position of the electromechanical operating system (40), and the electrical output value remains essentially constant over a second sub-section of the total path travelled, by short-circuiting this sub-section.
  2. Control device according to claim 1, characterised in that the potentiometer wiper cooperates with the resistance path of the potentiometer over the first sub-section of the total path travelled, and over the second sub-section with a simple contact connected in series to the resistance path.
  3. Control device according to claim 1 or 2, characterised in that the actual-value sensor is configured as a non-contact system.
EP95101535A 1994-04-02 1995-02-06 Control for a throttle valve Revoked EP0675276B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4411630A DE4411630C1 (en) 1994-04-02 1994-04-02 Control system for throttle flap in combustion engine
DE4411630 1994-04-02

Publications (2)

Publication Number Publication Date
EP0675276A1 EP0675276A1 (en) 1995-10-04
EP0675276B1 true EP0675276B1 (en) 1998-09-23

Family

ID=6514613

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95101535A Revoked EP0675276B1 (en) 1994-04-02 1995-02-06 Control for a throttle valve

Country Status (4)

Country Link
US (1) US5566656A (en)
EP (1) EP0675276B1 (en)
JP (1) JPH07279693A (en)
DE (2) DE4411630C1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69522379T2 (en) * 1994-06-17 2002-05-29 Hitachi Ltd Output torque control device and method for an internal combustion engine
DE19612830C1 (en) * 1996-03-30 1997-07-24 Hella Kg Hueck & Co Drive pedal transmission with potentiometer as sensor
JPH11107787A (en) * 1997-10-02 1999-04-20 Mitsubishi Electric Corp Engine control device
DE19834477A1 (en) * 1998-04-28 1999-11-04 Mannesmann Vdo Ag Electrical circuit
US6237564B1 (en) * 2000-02-25 2001-05-29 Ford Global Technologies, Inc. Electronic throttle control system
US6463797B2 (en) * 2000-02-25 2002-10-15 Ford Global Technologies, Inc. Electronic throttle system
DE102011012203A1 (en) * 2011-02-23 2012-08-23 Pierburg Gmbh Adjusting device for adjusting actuators in an internal combustion engine
CN104608633B (en) * 2014-12-31 2018-06-05 陈欣 Limiting vehicle speed safe-guard system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2570177A1 (en) * 1984-09-13 1986-03-14 Bosch Gmbh Robert POSITIONS DETECTION DEVICE FOR A MOBILE PART IN A MOTOR VEHICLE
DE4031003A1 (en) * 1990-10-01 1992-04-02 Vdo Schindling LOAD ADJUSTMENT DEVICE

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2693989B2 (en) * 1988-12-15 1997-12-24 ローベルト・ボッシュ・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング Control device for internal combustion engine of automobile
DE4016008A1 (en) * 1990-05-18 1991-11-21 Audi Ag ELECTRICALLY INFLUIDED THROTTLE ADJUSTMENT
DE4133268A1 (en) * 1991-10-08 1993-04-15 Bosch Gmbh Robert DEVICE FOR CONTROLLING THE DRIVE POWER OF A VEHICLE
DE4206523A1 (en) * 1992-03-02 1993-09-09 Vdo Schindling DEVICE FOR ADJUSTING A THROTTLE VALVE
JPH0650201A (en) * 1992-04-30 1994-02-22 Nippondenso Co Ltd Driving device for throttle valve
DE4345557B4 (en) * 1992-09-17 2004-12-02 Hitachi, Ltd. Motor-driven throttle valve device for an internal combustion engine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2570177A1 (en) * 1984-09-13 1986-03-14 Bosch Gmbh Robert POSITIONS DETECTION DEVICE FOR A MOBILE PART IN A MOTOR VEHICLE
DE4031003A1 (en) * 1990-10-01 1992-04-02 Vdo Schindling LOAD ADJUSTMENT DEVICE

Also Published As

Publication number Publication date
US5566656A (en) 1996-10-22
EP0675276A1 (en) 1995-10-04
DE59503655D1 (en) 1998-10-29
DE4411630C1 (en) 1995-06-08
JPH07279693A (en) 1995-10-27

Similar Documents

Publication Publication Date Title
DE60100225T2 (en) Electronic throttle control system with reduced friction and wear
EP0536461B1 (en) Method of controlling and adjusting device for actuation of a regulating organ of a control system of an internal combustion engine
EP0315794A2 (en) Device for actuating the throttle valve of an internal-combustion engine of a motor vehicle
EP1281848B1 (en) Throttle valve assembly
EP0412237B1 (en) Throttle valve
DE3927043A1 (en) LOAD ADJUSTMENT DEVICE
EP0675276B1 (en) Control for a throttle valve
DE602004002664T2 (en) Throttle device and vehicle
EP0402521B1 (en) Load control apparatus
DE4209586A1 (en) Throttle mechanism for IC engine - has throttle-stop coupled to actuating mechanism which is adjustable in relation to housing
DE3447629C2 (en)
EP0981684B1 (en) Load adjusting device
DE10110884B4 (en) An actuation system comprising a piston-cylinder unit in combination with a drive device
DE10021532A1 (en) Motor vehicle accelerator pedal has additional housing and friction elements to ensure there is a hysteresis in the pedal return caused by friction acting against the return spring so there is a smooth pedal action
EP0494336B1 (en) Load adjusting device for an internal combustion engine with throttle valve
DE4000125C2 (en)
EP0455880B1 (en) Load control apparatus
DE4340372A1 (en) Recognition of idling condition of IC engine
DE4126365C2 (en) Method for idling detection in a load adjustment device of a throttle valve-controlled internal combustion engine
DE4002134C2 (en) Load adjustment device
DE4014507A1 (en) LOAD ADJUSTMENT DEVICE
DE4000124C2 (en)
DE4435465A1 (en) Power control facility
DE4031002A1 (en) LOAD ADJUSTMENT DEVICE
DE102004001144A1 (en) Door opener has absolute position sensor, a control system drive with absolute position potentiometer, optical or magnetic field sensor between drive and linkage

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE FR GB

17P Request for examination filed

Effective date: 19950923

17Q First examination report despatched

Effective date: 19961129

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR GB

REF Corresponds to:

Ref document number: 59503655

Country of ref document: DE

Date of ref document: 19981029

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19981109

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

26 Opposition filed

Opponent name: ROBERT BOSCH GMBH ABTLG. ZGM 3 MARQUARDT

Effective date: 19990622

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20000120

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20000211

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20000216

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20000218

Year of fee payment: 6

RDAH Patent revoked

Free format text: ORIGINAL CODE: EPIDOS REVO

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 20000623

GBPR Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state

Free format text: 20000623