DE102007047802A1 - Method for clutch control in hybridized manual transmission, involves connecting electrical machine with gearbox input shaft and starting clutch is arranged between internal combustion engine and gearbox input shaft - Google Patents

Method for clutch control in hybridized manual transmission, involves connecting electrical machine with gearbox input shaft and starting clutch is arranged between internal combustion engine and gearbox input shaft Download PDF

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Publication number
DE102007047802A1
DE102007047802A1 DE102007047802A DE102007047802A DE102007047802A1 DE 102007047802 A1 DE102007047802 A1 DE 102007047802A1 DE 102007047802 A DE102007047802 A DE 102007047802A DE 102007047802 A DE102007047802 A DE 102007047802A DE 102007047802 A1 DE102007047802 A1 DE 102007047802A1
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Prior art keywords
clutch
input shaft
starting clutch
transmission input
gearbox input
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DE102007047802A
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German (de)
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Johannes Dr. Kaltenbach
Uwe Griesmeier
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ZF Friedrichshafen AG
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ZF Friedrichshafen AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/30—Control strategies involving selection of transmission gear ratio
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
    • B60W30/18—Propelling the vehicle
    • B60W30/19—Improvement of gear change, e.g. by synchronisation or smoothing gear shift
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/421—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/48—Drive Train control parameters related to transmissions
    • B60L2240/486—Operating parameters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/02—Clutches
    • B60W2510/0208—Clutch engagement state, e.g. engaged or disengaged
    • B60W2510/0225—Clutch actuator position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/10—Change speed gearings
    • B60W2510/1015—Input shaft speed, e.g. turbine speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2540/00—Input parameters relating to occupants
    • B60W2540/14—Clutch pedal position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/08—Electric propulsion units
    • B60W2710/081—Speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2306/00—Shifting
    • F16H2306/40—Shifting activities
    • F16H2306/44—Removing torque from current gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2306/00—Shifting
    • F16H2306/40—Shifting activities
    • F16H2306/54—Synchronizing engine speed to transmission input speed
    • 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
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles
    • 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
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

Abstract

The method involves connecting an electrical machine (6) with a gearbox input shaft (3). A starting clutch (2) is arranged between an internal combustion engine (1) and the gearbox input shaft. A clutch (7) is arranged between the electrical machine and the gearbox input shaft. The clutch is opened by actuating the starting clutch. The actuation of the starting clutch is detected by a position detection unit of the starting clutch or the clutch pedal.

Description

Die vorliegende Erfindung bezieht sich auf ein Verfahren zur Kupplungsansteuerung bei einem hybridisierten Schaltgetriebe umfassend eine zwischen dem Verbrennungsmotor und der Getriebeeingangswelle angeordnete Anfahrkupplung und eine zwischen der elektrischen Maschine und der Getriebeeingangswelle angeordnete Kupplung, durch die die elektrische Maschine mit der Getriebeeingangswelle lösbar verbindbar ist gemäß dem Oberbegriff des Patentanspruchs 1.The The present invention relates to a method of clutch actuation in a hybridized transmission comprising an intermediate the internal combustion engine and the transmission input shaft arranged Starting clutch and one between the electric machine and the Transmission input shaft arranged clutch through which the electrical Machine releasably connectable to the transmission input shaft is according to the preamble of Patent claim 1.

Bei Fahrzeugen umfassend einen Verbrennungsmotor, ein Schaltgetriebe und eine elektrische Maschine, d. h. bei Fahrzeugen umfassend ein aus dem Stand der Technik bekanntes sogenanntes hybridisiertes Schaltgetriebe kann, je nach Anordnung der elektrischen Maschine im Antriebsstrang, ein Schalten seitens des Fahrers in kritischen Situationen resultieren.at Vehicles comprising an internal combustion engine, a manual transmission and an electric machine, d. H. in vehicles comprising a known from the prior art so-called hybridized transmission can, depending on the arrangement of the electric machine in the drive train, a shift on the part of the driver in critical situations result.

Bei einem hybridisierten Schaltgetriebe darf die elektrische Maschine während des Schaltvorganges nicht mit der Getriebeeingangswelle verbunden sein, wenn die Synchronisation während einer Schaltung durch entsprechende Getriebeelemente, beispielsweise Synchronisierungen erfolgt. Ist in einer derartigen Situation die elektrische Maschine dennoch mit der Getriebeeingangswelle verbunden, so werden die Synchronisierungen im Getriebe in nachteiliger Weise durch das hohe Trägheitsmoment der mit der Getriebeeingangswelle verbundenen elektrischen Maschine erhöhten Belastungen ausgesetzt, was sich auf die Lebensdauer dieser Komponenten negativ auswirkt.at a hybridized gearbox is allowed to use the electric machine while the switching process is not connected to the transmission input shaft, if the synchronization during a circuit through corresponding transmission elements, for example Synchronizations done. Is in such a situation the electric machine still connected to the transmission input shaft, so the syncs in the transmission are disadvantageously due to the high moment of inertia the electrical machine connected to the transmission input shaft increased Exposed to stress, which affects the life of these components negative effect.

Um dieses Problem zu lösen, bzw. um einen erhöhten Verschleiß der Synchronisierungen zu vermeiden, kann eine Schalthebelsensorik vorgesehen sein, durch die rechtzeitig festgestellt werden kann, ob der Fahrer einen Schaltvorgang durchführen möchte. Wird dies erkannt, so kann eine Kupplung im Antriebsstrang geöffnet werden, um die elektrische Maschine von der Getriebeeingangswelle abzukoppeln. In nachteiliger Weise ist diese Lösung durch den zusätzlichen Herstellungs- und Montageaufwand für die Schalthebelsensorik bedeutet sehr kostenintensiv.Around to solve this problem, or an increased Wear the To avoid synchronization, a shift lever sensor can be provided by the time can be determined whether the driver has a Would like to perform switching operation. Becomes If this is detected, then a clutch in the drive train can be opened, to decouple the electric machine from the transmission input shaft. Disadvantageously, this solution is due to the additional Manufacturing and assembly costs for the shift lever sensor means very expensive.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Kupplungsansteuerung bei einem hybridisierten Schaltgetriebe umfassend eine zwischen dem Verbrennungsmotor und der Getriebeeingangswelle angeordnete Anfahrkupplung und eine zwischen einer elektrischen Maschine und der Getriebeeingangswelle angeordnete Kupplung, durch die die elektrische Maschine mit der Getriebeeingangswelle lösbar verbindbar ist, anzugeben, durch dessen Durchführung ein sicherer Schaltablauf gewährleistet wird. Insbesondere soll ein erhöhter Verschleiß der Synchronisierungen vermieden werden, wobei die Notwendigkeit einer Schalthebelsensorik entfallen soll.Of the The present invention is based on the object, a method for clutch control in a hybridized transmission comprising one between the internal combustion engine and the transmission input shaft arranged starting clutch and one between an electric Engine and the transmission input shaft arranged clutch, through the releasably connectable the electric machine with the transmission input shaft is to specify, by its implementation ensures a safe switching sequence becomes. In particular, an increased wear of the synchronizers be avoided, the need for a shift lever sensor should be omitted.

Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst. Weitere erfindungsgemäße Ausgestaltungen und Vorteile gehen aus den entsprechenden Unteransprüchen hervor.These The object is solved by the features of claim 1. Further Embodiments of the invention and advantages will be apparent from the corresponding subclaims.

Demnach wird ein Verfahren zur Kupplungsansteuerung bei einem hybridisierten Schaltgetriebe umfassend eine zwischen dem Verbrennungsmotor und der Getriebeeingangswelle angeordnete Anfahrkupplung und eine zwischen der elektrischen Maschine des Antriebsstrangs und der Getriebeeingangswelle angeordnete Kupplung vorgeschlagen, im Rahmen dessen, wenn der Fahrer das Kupplungspedal der Anfahrkupplung betätigt bzw. wenn die Anfahrkupplung betätigt wird, was z. B. anhand der Signale einer Steuerung erfolgen kann, nicht nur die Anfahrkupplung zum Trennen des Verbrennungsmotors vom Antriebsstrang, sondern auch die zwischen der elektrischen Maschine und der Getriebeeingangswelle angeordnete zweite Kupplung geöffnet wird.Therefore is a method for coupling control in a hybridized Manual transmission comprising a between the engine and the transmission input shaft arranged starting clutch and an intermediate the electric machine of the drive train and the transmission input shaft arranged clutch, in the context of which, when the driver the clutch pedal of the starting clutch is actuated or when the starting clutch actuated becomes what z. B. based on the signals of a control, not only the starting clutch for disconnecting the internal combustion engine from Powertrain, but also between the electric machine and the transmission input shaft arranged second clutch is opened.

Im Rahmen einer ersten Variante des erfindungsgemäßen Verfahrens wird die zweite Kupplung unmittelbar nach Beendigung des Schaltvorganges geschlossen, wobei bei geöffneter zweiter Kupplung die elektrische Maschine drehzahlgeregelt mit der momentanen Getriebeeingangsdrehzahl als Sollvorgabe betrieben wird. Auf diese Weise wird sichergestellt, dass nach Beendigung des Schaltvorganges die zweite Kupplung ohne die Notwendigkeit einer Drehzahlanpassung sofort geschlossen werden kann, wodurch die elektrische Maschine zum Boosten, Rekuperieren etc. wieder zur Verfügung gestellt wird.in the In a first variant of the method according to the invention, the second Clutch closed immediately after completion of the shift, being open second clutch, the electric machine speed-controlled with the current Transmission input speed is operated as a target value. To this This ensures that after completion of the switching process the second clutch without the need for speed adjustment immediately can be closed, causing the electric machine to boost, Recuperation etc. is provided again.

Gemäß einer zweiten Variante des erfindungsgemäßen Verfahrens wird die zweite Kupplung nach Beendigung des Schaltvorganges bzw. nach dem Schließen der Anfahrkupplung geschlossen, wobei in diesem Fall bei geöffneter zweiter Kupplung die elektrische Maschine drehzahlgeregelt mit der momentanen Verbrennungsmotordrehzahl als Sollvorgabe betrieben wird. Durch diese Vorgehensweise entfällt in vorteilhafter Weise die Notwendigkeit eines Sensors zur Erfassung der Getriebeeingangsdrehzahl.According to one second variant of the method according to the invention is the second Clutch after completion of the switching process or after closing the Start clutch closed, in which case open second clutch, the electric machine speed-controlled with the current Engine speed is operated as a target value. By this procedure is omitted advantageously the need for a sensor for detection the transmission input speed.

Zur Durchführung des erfindungsgemäßen Verfahrens ist eine Positionserfassungseinrichtung der Anfahrkupplung bzw. des Kupplungspedals zur Betätigung der Anfahrkupplung erforderlich.to execution the method according to the invention is a position detection device of the starting clutch or the clutch pedal for operation the starting clutch required.

Die Erfindung wird im folgenden anhand der beigefügten Figur, welche eine mögliche Antriebsstranganordnung eines hybridisierten Schaltgetriebes darstellt, bei dem das erfindungsgemäße Verfahren durchführbar ist, beispielhaft näher erläutert.The invention is described below with reference to the accompanying figure, which shows a possible powertrain arrangement of a hybridized Schaltgetrie bes represents, in which the inventive method is feasible, exemplified in more detail.

In der Figur ist der Verbrennungsmotor mit 1 bezeichnet; er ist mittels einer auch als Anfahrkupplung dienenden Kupplung 2 mit der Getriebeeingangswelle 3 eines Schaltgetriebes 4 lösbar verbindbar; bei der gezeigten Ausführungsform ist ein mit dem Verbrennungsmotor wirkverbundener Starter-Generator 5 vorgesehen, der beispielsweise als riemengetriebener Starter- Generator (RSG) ausgeführt sein kann. Des weiteren umfasst der Antriebsstrang eine elektrische Maschine 6, die über eine Kupplung 7 mit der Getriebeeingangswelle 3 des Schaltgetriebes 4 lösbar verbindbar ist. Wie aus der Figur ersichtlich, ist die elektrische Maschine 6 auf der Abtriebsseite der Anfahrkupplung 2 angeordnet.In the figure, the internal combustion engine with 1 designated; it is by means of a coupling which also serves as a starting clutch 2 with the transmission input shaft 3 a gearbox 4 releasably connectable; In the embodiment shown, a starter-generator operatively connected to the internal combustion engine 5 provided, which may for example be designed as a belt-driven starter generator (RSG). Furthermore, the drive train comprises an electric machine 6 that have a clutch 7 with the transmission input shaft 3 of the gearbox 4 is detachably connectable. As can be seen from the figure, the electric machine 6 on the output side of the starting clutch 2 arranged.

Gemäß der Erfindung ist vorgesehen, dass wenn Kupplungspedal der Anfahrkupplung 2 betätigt wird bzw. wenn die Anfahrkupplung anhand der Signale einer Steuerung betätigt wird, auch die zwischen der elektrischen Maschine 6 und der Getriebeeingangswelle 3 angeordnete Kupplung 7 geöffnet wird, wodurch ein erhöhter Verschleiß der Synchronisierungen des Getriebes 4, bedingt durch das Trägheitsmoment der elektrischen Maschine 6, vermieden werden kann. Hierbei wird beispielsweise mittels einer Positionserfassungseinrichtung der Anfahrkupplung 2 bzw. des Kupplungspedals zur Betätigung der Anfahrkupplung 2 die Betätigung der Anfahrkupplung 2 erfasst, so dass bei erkannter Betätigung der Anfahrkupplung 2 die Kupplung 7 ebenfalls geöffnet wird.According to the invention it is provided that when the clutch pedal of the starting clutch 2 is actuated or when the starting clutch is actuated based on the signals of a controller, including those between the electric machine 6 and the transmission input shaft 3 arranged clutch 7 is opened, causing increased wear of the synchronizers of the transmission 4 due to the moment of inertia of the electric machine 6 , can be avoided. Here, for example, by means of a position detection device of the starting clutch 2 or the clutch pedal for actuating the starting clutch 2 the actuation of the starting clutch 2 detected, so that when detected actuation of the starting clutch 2 the coupling 7 also opened.

Hierbei kann vorgesehen sein, dass die Kupplung 7 unmittelbar nach Beendigung des Schaltvorganges geschlossen wird, wobei solange sich die Kupplung 7 im geöffneten Zustand befindet, die elektrische Maschine 6 drehzahlgeregelt mit der momentanen Getriebeeingangsdrehzahl als Sollvorgabe betrieben wird. Zur Erfassung der momentanen Getriebeeingangsdrehzahl ist ein Sensor vorgesehen.It can be provided that the clutch 7 is closed immediately after the end of the shift, while the clutch 7 when open, the electric machine 6 speed controlled with the current transmission input speed is operated as a target value. For detecting the current transmission input speed, a sensor is provided.

Alternativ dazu kann die Kupplung 7 nach Beendigung des Schaltvorganges bzw. nach dem Schließen der Anfahrkupplung 2 geschlossen werden, wobei solange sich die Kupplung 7 im geöffneten Zustand befindet, die elektrische Maschine 6 drehzahlgeregelt mit der momentanen Verbrennungsmotordrehzahl als Sollvorgabe betrieben wird.Alternatively, the clutch 7 after completion of the switching operation or after the closing of the starting clutch 2 be closed, while as long as the clutch 7 when open, the electric machine 6 speed controlled with the current engine speed is operated as a target value.

Durch die erfindungsgemäße Konzeption wird ein Verfahren zur Kupplungsansteuerung bei einem hybridisierten Schaltgetriebe umfassend eine zwischen dem Verbrennungsmotor und der Getriebeeingangswelle angeordnete Anfahrkupplung und eine zwischen der elektrischen Maschine und der Getriebeeingangswelle angeordnete Kupplung zur Verfügung gestellt, durch dessen Durchführung ein sicherer Schaltablauf gewährleistet wird, wobei ein erhöhter Verschleiß der Synchronisierungen des Getriebes vermieden wird.By the concept of the invention is a method for coupling control in a hybridized Manual transmission comprising a between the engine and the transmission input shaft arranged starting clutch and an intermediate the electric machine and the transmission input shaft arranged Clutch available through its implementation ensures a safe switching sequence being, being an elevated Wear the Synchronizations of the transmission is avoided.

Des weiteren wird durch die erfindungsgemäße Drehzahlregelung der elektrischen Maschine während eines Schaltvorgangs der Komfort für den Fahrer erhöht und auch gewährleistet, dass die Funktionalität der elektrischen Maschine unmittelbar nach Beendigung einer Schaltung zur Verfügung steht.Of Another is due to the inventive speed control of the electric Machine during a shift operation increases the comfort for the driver and also guaranteed that functionality the electrical machine immediately after completion of a circuit to disposal stands.

11
Verbrennungsmotorinternal combustion engine
22
Anfahrkupplungclutch
33
GetriebeeingangswelleTransmission input shaft
44
Schaltgetriebemanual transmission
55
Starter-GeneratorStarter-generator
66
elektrische Maschineelectrical machine
77
Kupplungclutch

Claims (5)

Verfahren zur Kupplungsansteuerung bei einem hybridisierten Schaltgetriebe umfassend eine zwischen dem Verbrennungsmotor (1) und der Getriebeeingangswelle (3) angeordnete Anfahrkupplung (2) und eine zwischen der elektrischen Maschine (6) und der Getriebeeingangswelle (3) angeordnete Kupplung (7), durch die die elektrische Maschine (6) mit der Getriebeeingangswelle (3) lösbar verbindbar ist, dadurch gekennzeichnet, dass bei einer Betätigung der Anfahrkupplung (2) auch die zwischen der elektrischen Maschine (6) und der Getriebeeingangswelle (3) angeordnete Kupplung (7) geöffnet wird.Method for coupling control in a hybridized manual transmission comprising a between the internal combustion engine ( 1 ) and the transmission input shaft ( 3 ) arranged starting clutch ( 2 ) and one between the electric machine ( 6 ) and the transmission input shaft ( 3 ) arranged coupling ( 7 ), by which the electrical machine ( 6 ) with the transmission input shaft ( 3 ) is releasably connectable, characterized in that upon actuation of the starting clutch ( 2 ) also between the electric machine ( 6 ) and the transmission input shaft ( 3 ) arranged coupling ( 7 ) is opened. Verfahren zur Kupplungsansteuerung nach Anspruch 1, dadurch gekennzeichnet, dass die Betätigung der Anfahrkupplung (2) mittels einer Positionserfassungseinrichtung der Anfahrkupplung (2) bzw. des Kupplungspedals zur Betätigung der Anfahrkupplung (2) erfasst wird.Method for coupling control according to claim 1, characterized in that the actuation of the starting clutch ( 2 ) by means of a position detection device of the starting clutch ( 2 ) or the clutch pedal for actuating the starting clutch ( 2 ) is detected. Verfahren zur Kupplungsansteuerung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Kupplung (7) unmittelbar nach Beendigung des Schaltvorganges geschlossen wird, wobei solange sich die Kupplung (7) im geöffneten Zustand befindet, die elektrische Maschine (6) drehzahlgeregelt mit der momentanen Getriebeeingangsdrehzahl als Sollvorgabe betrieben wird.Method for coupling control according to claim 1 or 2, characterized in that the coupling ( 7 ) is closed immediately after completion of the switching operation, wherein as long as the clutch ( 7 ) is in the open state, the electric machine ( 6 ) is operated speed-controlled with the current transmission input speed as a target value. Verfahren zur Kupplungsansteuerung nach Anspruch 3, dadurch gekennzeichnet, dass die momentane Getriebeeingangsdrehzahl mittels eines Sensors erfasst wird.Method for coupling control according to claim 3, characterized in that the instantaneous transmission input speed is detected by a sensor. Verfahren zur Kupplungsansteuerung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Kupplung (7) nach Beendigung des Schaltvorganges bzw. nach dem Schließen der Anfahrkupplung (2) geschlossen wird, wobei solange sich die Kupplung (7) im geöffneten Zustand befindet, die elektrische Maschine (6) drehzahlgeregelt mit der momentanen Verbrennungsmotordrehzahl als Sollvorgabe betrieben wird.Method for coupling control according to claim 1 or 2, characterized in that the coupling ( 7 ) after completion of the switching operation or after the closing of the starting clutch ( 2 ), whereby as long as the clutch ( 7 ) is in the open state, the electric machine ( 6 ) is operated speed-controlled with the current engine speed as a target value.
DE102007047802A 2007-11-16 2007-11-16 Method for clutch control in hybridized manual transmission, involves connecting electrical machine with gearbox input shaft and starting clutch is arranged between internal combustion engine and gearbox input shaft Withdrawn DE102007047802A1 (en)

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AT413806B (en) * 2004-04-27 2006-06-15 Avl List Gmbh Method for reducing transmission noises of drive train of vehicle e.g. small size car, involves controlling torque in drive train such that drive oscillations are suppressed depending on tensile or axial load in transfer box
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Publication number Priority date Publication date Assignee Title
DE10354201A1 (en) * 2002-11-21 2004-07-08 Toyota Jidosha K.K., Toyota Shift control system for hybrid vehicles
AT413806B (en) * 2004-04-27 2006-06-15 Avl List Gmbh Method for reducing transmission noises of drive train of vehicle e.g. small size car, involves controlling torque in drive train such that drive oscillations are suppressed depending on tensile or axial load in transfer box
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011054637A1 (en) * 2009-11-04 2011-05-12 Zf Friedrichshafen Ag Hybrid vehicle transmission
CN102596612A (en) * 2009-11-04 2012-07-18 Zf腓德烈斯哈芬股份公司 Hybrid vehicle transmission
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