DE102005003608A1 - Drivetrain operating method e.g. for vehicle, involves having propulsion engine such as internal combustion engine and torque converter such as automatic gearbox, or automated manual gearbox - Google Patents
Drivetrain operating method e.g. for vehicle, involves having propulsion engine such as internal combustion engine and torque converter such as automatic gearbox, or automated manual gearbox Download PDFInfo
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- DE102005003608A1 DE102005003608A1 DE102005003608A DE102005003608A DE102005003608A1 DE 102005003608 A1 DE102005003608 A1 DE 102005003608A1 DE 102005003608 A DE102005003608 A DE 102005003608A DE 102005003608 A DE102005003608 A DE 102005003608A DE 102005003608 A1 DE102005003608 A1 DE 102005003608A1
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 11
- 238000011017 operating method Methods 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims description 18
- 230000007704 transition Effects 0.000 claims description 3
- 230000001419 dependent effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 9
- 239000000446 fuel Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
Classifications
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- 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
- B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
- B60K23/06—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for freewheel devices
-
- 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
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- 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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/21—Providing engine brake control
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- 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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
- F16H63/46—Signals to a clutch outside the gearbox
-
- 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
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18072—Coasting
- B60W2030/1809—Without torque flow between driveshaft and engine, e.g. with clutch disengaged or transmission in neutral
-
- 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
- B60W2540/10—Accelerator 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
- B60W2540/00—Input parameters relating to occupants
- B60W2540/10—Accelerator pedal position
- B60W2540/103—Accelerator thresholds, e.g. kickdown
-
- 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
- B60W2540/12—Brake 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
- B60W2554/00—Input parameters relating to objects
- B60W2554/80—Spatial relation or speed relative to objects
- B60W2554/801—Lateral distance
-
- 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
- B60W2556/00—Input parameters relating to data
- B60W2556/45—External transmission of data to or from the vehicle
- B60W2556/50—External transmission of data to or from the vehicle of positioning data, e.g. GPS [Global Positioning System] data
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2300/00—Purposes or special features of road vehicle drive control systems
- B60Y2300/18—Propelling the vehicle
- B60Y2300/18008—Propelling the vehicle related to particular drive situations
- B60Y2300/18066—Coasting
- B60Y2300/18083—Coasting without torque flow between driveshaft and engine, e.g. with clutch disengaged or transmission in neutral
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- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/60—Inputs being a function of ambient conditions
- F16H59/66—Road conditions, e.g. slope, slippery
- F16H2059/666—Determining road conditions by using vehicle location or position, e.g. from global navigation systems [GPS]
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- 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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0213—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
- F16H2061/0234—Adapting the ratios to special vehicle conditions
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Control Of Transmission Device (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Verfahren zum Betreiben des Antriebsstranges eines Kraftfahrzeuges, enthaltend eine Antriebsmotor, vorzugsweise eine Brennkraftmaschine, und einen Drehmomentwandler, wie beispielsweise ein automatisches Getriebe oder ein automatisiertes Schaltgetriebe, gemäss Patentanspruch 1.The The invention relates to a method for operating the drive train a motor vehicle, comprising a drive motor, preferably an internal combustion engine, and a torque converter, such as an automatic transmission or an automated manual transmission, according to Claim 1.
Es sind bereits Kraftfahrzeuge bekannt geworden, welche zwecks Reduktion des Kraftstoffverbrauchs mit einer Freilauffunktion ausgestattet sind. Diese funktionieren derart, dass zum Beispiel beim durch den Fahrer verursachten Gaswegnehmen die antreibende Brennkraftmaschine von den angetriebenen Fahrzeugrädern getrennt wird. Die Drehzahl der Brennkraftmaschine kann dann kraftstoffsparend zur Leerlaufdrehzahl zurückgeführt werden, jedoch entfällt Unvorteilhafterweise die bremsende Wirkung der Brennkraftmaschine im Schubbetrieb.It are already known motor vehicles, which for the purpose of reduction Fuel consumption equipped with a freewheeling function are. These work in such a way that, for example, when through the Drivers caused gas take-off the driving internal combustion engine from the powered vehicle wheels is disconnected. The speed of the internal combustion engine can then save fuel for Idling speed are returned, however, it does not apply Unfavorably, the braking effect of the internal combustion engine in overrun mode.
Zur noch weitergehenden Verbrauchsreduktion ist es bekannt geworden, die Brennkraftmaschine in solchen antriebslosen Schubbetriebsphasen des Kraftfahrzeuges komplett abzuschalten. Neben dem Entfall der Bremswirkung kommt bei einer solchen Lösung jedoch noch das Problem der dann nicht mehr durch die Brennkraftmaschine angetriebenen Nebenaggregate hinzu.to even further consumption reduction has become known the internal combustion engine in such unpowered overrun phases of Turn off motor vehicle completely. In addition to the elimination of the braking effect comes with such a solution but still not the problem of the internal combustion engine driven ancillaries added.
Nachteilig bei den vorbeschriebenen Konzepten ist, dass bei einer Bergabfahrt aufgrund der nicht mehr gegebenen Motorbremswirkung das Fahrzeug in unerwünschter Weise an Fahrgeschwindigkeit zunimmt, welche nur durch eine Betätigung der Betriebsbremse des Fahrzeugs verringert werden kann.adversely in the above concepts is that when going downhill due to the no longer given engine braking effect the vehicle in unwanted Way at driving speed increases, which only by operating the service brake of the vehicle can be reduced.
Zur Lösung dieses Problems ist aus dem Internetdokument „httpa/www.volvosouth.co.ukldefault.asp?winstr=FH12RoadTest/fhprofile.asp" beziehungsweise aus dem Lastkraftwagen Volvo Typ FH 12 ein Antriebsstrang bekannt geworden, mit einem als Brennkraftmaschine ausgebildeten Antriebsmotor, mit einem als automatisches Splittergetriebe mit 12 Vorwärtsgängen ausgebildeten Drehmomentwandler, mit einer manuell zu betätigenden Stellvorrichtung in Form eines Gaspedals für ein Leistungsstellglied (beispielsweise eine Kraftstoffeinspritzpumpe) des Antriebsmotors, und mit einem manuell zu betätigenden Vorwählglied in Form eines neben dem Fahrersitz angeordneten Getriebegangbereichwählhebels, sowie mit einem manuell zu betätigenden Steller in Form eines Bremspedals zur Betätigung einer die Fahrgeschwindigkeit des Fahrzeuges verzögernden Betriebsbremse.to solution This problem is from the Internet document "httpa / www.volvosouth.co.ukldefault.asp? winstr = FH12RoadTest / fhprofile.asp" respectively from the truck Volvo type FH 12 a powertrain known become, with designed as an internal combustion engine drive motor, formed with an automatic splitter transmission with 12 forward gears Torque converter, with a manually operated actuator in Shape of an accelerator pedal for a power actuator (for example, a fuel injection pump) of the drive motor, and with a manually operated preselector in the form of a transmission gear selector lever arranged next to the driver's seat, as well as with a manually operated actuator in the form of a brake pedal for actuating a vehicle speed delaying the vehicle Service brake.
Eine dem Antriebsstrang zugeordnete elektronische Steuereinheit detektiert unter anderem einen Zustand, in welchem keine Antriebsleistung erforderlich ist oder eine Motorbremse nicht eingeschaltet ist, ob eine automatische Geschwindigkeitsregelanlage eingeschaltet ist, ob sich das Getriebe im Automatikmodus befindet und ob einer der Vorwärtsgänge 7 bis 12 eingelegt ist. Treffen alle diese Bedingungen gemeinsam zu, so wird das Splittergetriebe automatisch in den Neutralmodus geschaltet, so dass dann die drehmomentübertragende Wirkung zwischen der Brennkraftmaschine und den angetriebenen Rädern aufgehoben ist.A detected the drive train associated electronic control unit including a condition in which no drive power required or an engine brake is not turned on, whether automatic Cruise control is turned on, whether the gearbox is in automatic mode and whether one of the forward gears 7 to 12 is engaged. If all these conditions coincide, the splitter transmission will become automatic switched to the neutral mode, so that then the torque transmitting Effect canceled between the engine and the driven wheels is.
Zur Vermeidung des einleitend genannten Problems bei Bergabfahrten wird diese bekannte Freilauffunktion sofort dann durch erneutes Schließen des Drehmomentflusses im Antriebsstrang unterbunden, wenn entweder das Bremspedal oder das Gaspedal betätigt wird, oder die Motorbremse eingeschaltet wird.to Avoidance of the aforementioned problem when driving downhill This known freewheeling function immediately then by re-closing the Torque flow in the powertrain prevented when either the Brake pedal or accelerator pedal pressed or the engine brake is switched on.
Vor diesem Hintergrund liegt der Erfindung die Aufgabe zugrunde, ein Verfahren zum Betreiben eines derartigen Antriebsstranges anzugeben, mit welchem flexibler als bisher auf unterschiedliche Verkehrssituationen reagiert werden kann.In front In this background, the invention is based on the object Specify a method for operating such a drive train, more flexible than before on different traffic situations can be reacted.
Die gestellte Aufgabe wird gelöst durch Verfahren zum Betreiben eines Antriebsstranges eines Fahrzeugs, enthaltend einen Antriebsmotor, beispielsweise eine Brennkraftmaschine, und einen Drehmomentwandler, beispielsweise ausgebildet als automatisches Getriebe oder als automatisiertes Schaltgetriebe oder als stufenloses Getriebe, mit einer manuell zu betätigenden Stellvorrichtung für ein Leistungsstellglied des Antriebsmotors, mit einem manuell zu betätigenden Vorwählglied für einen Betriebsbereich des Drehmomentwandlers bzw. Getriebes, mit einem manuell zu betätigenden Steller zur Betätigung einer die Fahrgeschwindigkeit des Fahrzeuges verzögernden Bremse, und mit einer elektronischen Steuereinheit zur Aufnahme, Verarbeitung und Abgabe von Signalen und Daten des Antriebsstranges und/oder des Fahrzeuges.The Asked task is solved by methods for operating a drive train of a vehicle, comprising a drive motor, for example an internal combustion engine, and a torque converter, for example, designed as an automatic Gearbox or as an automated manual or continuously variable Transmission, with a manually operable actuator for a power actuator of the drive motor, with a manually operated preselector for one Operating range of the torque converter or transmission, with a manually operated Actuator for actuation a delaying the driving speed of the vehicle Brake, and with an electronic control unit for picking up, Processing and delivery of powertrain signals and data and / or the vehicle.
Zudem ist diesem Antriebsstrang eine Freilaufeinrichtung mit einer Freilauffunktion derart zugeordnet ist, dass
- a) im Schubbetrieb bei nicht betätigter Stellvorrichtung des Leistungsstellglieds zunächst die Freilauffunktion freigegeben wird, und
- b) dann, wenn anschließend der Steller zur Verringerung der Fahrgeschwindigkeit betätigt wird, die Freilauffunktion gesperrt wird, und
- c) dann, wenn die Freilauffunktion im Schubbetrieb wieder freigegeben werden soll, dieses durch Betätigen Stellvorrichtung des Leistungsstellglieds erfolgt.
- a) in overrun operation when not actuated adjusting device of the power actuator, first the freewheeling function is released, and
- b) then, when the actuator is then operated to reduce the driving speed, the free-wheeling function is locked, and
- c) when the freewheeling function in Schubbe drive should be released again, this is done by actuating actuator of the power actuator.
Diese Verfahrensweise hat den Vorteil, dass durch das Betätigen der Stellvorrichtung für das Leistungsstellglied bzw. das Betätigen des auf die Bremse wirkenden Stellers durch den Fahrer schnell und flexibel zwischen den Zuständen „freigegebener Freilaufeffekt" bzw. „gesperrter Freilaufeffekt" umgeschaltet werden kann.These Procedure has the advantage that by pressing the Adjusting device for the power actuator or operating the acting on the brake Stellers by the driver quickly and flexibly between the states "shared Freewheel effect "or" locked Freewheel effect "switched can be.
Wird beispielsweise bei einer beginnenden Bergabfahrt zunächst auf die Zulässigkeit des Freilaufbetriebs erkannt, so kann der Fahrer bei nachfolgend zu starker Zunahme der Fahrgeschwindigkeit durch Betätigen des Stellers zur Betätigung der Bremse eine bewusste Verzögerung des Fahrzeuges durch ein Sperren des Freilaufeffektes herbeiführen, und anschließend, wenn zum Beispiel der topographische Fahrstreckenverlauf alleine eine ausreichende Absenkung der Fahrgeschwindigkeit herbeiführt, zum Beispiel beim Befahren der Steigung eines kleinen Hügels, die Freilauffunktion durch Betätigung der Stellvorrichtung des Leistungsstellglieds sofort wieder freigeben.Becomes For example, at a beginning downhill first on the admissibility the freewheeling operation detected, so the driver at the following excessive increase of the driving speed by pressing the Stellers for actuation the brake a deliberate delay of the vehicle by locking the freewheeling effect, and subsequently, if, for example, the topographical route course alone a sufficient reduction of the driving speed causes, for Example when driving on the slope of a small hill, the Freewheel function by operation Immediately release the actuator of the power actuator.
In vorteilhafter Ausgestaltung der Erfindung kann vorgesehen sein, dass bei aktiver Freilauffunktion im Drehmomentwandler bzw. Getriebe der zur aktuellen Fahrzeuggeschwindigkeit passende Getriebegang bzw. das Übersetzungsverhältnis bei einem stufenlosen Getriebe nachgeführt wird, damit bei erneutem Gasgeben und deaktivierter Freilauffunktion sofort ein passender Getriebegang zur Verfügung steht.In advantageous embodiment of the invention can be provided that with active freewheel function in the torque converter or transmission the gearbox suitable for the current vehicle speed or the gear ratio at a continuously variable transmission is tracked, so at renewed Throttle and deactivated freewheel function immediately a matching Transmission gear available stands.
Bevorzugt kann auch vorgesehen sein, dass die Übergangsbedingung im Verfahrensschritt b) dahingehend modifiziert ist, dass der Steller für die Bremse für eine voreingestellte oder voreinstellbare Zeitspanne, zum Beispiel etwa 1 Sekunde lang, ununterbrochen betätigt sein muss, um die Freilauffunktion zu sperren. Dieses bietet die Möglichkeit, den Steller für die Bremse kurzzeitig, auch unbeabsichtigt, zu betätigen, ohne die Freilauffunktion sofort zu sperren.Prefers can also be provided that the transition condition in the process step b) is modified to the effect that the actuator for the brake for one preset or presettable time span, for example about 1 second, must be pressed continuously to the freewheeling function to lock. This offers the possibility the controller for to operate the brake briefly, even unintentionally, without to lock the freewheel function immediately.
In einer anderen Ausgestaltung kann alternativ oder in Ergänzung dazu vorgesehen sein, dass im Verfahrensschritt c) die Übergangsbedingung von gesperrtem zu aktivem Freilaufeffekt nur dann erfüllt ist, wenn die Stellvorrichtung für das Leistungsstellglied des Antriebsmotors über ein voreingestelltes oder voreinstellbares Maß hinaus betätigt wurde. Dies kann beispielsweise durch eine Auslenkung des Fahrpedals über einen vorbestimmten Auslenkwinkel realisiert sein. Durch diese Variante wird ein eher zufälliges Betätigen dieser Stellvorrichtung durch den Fahrer als für die Freilauffunktion nicht relevant ignoriert.In another embodiment may alternatively or in addition to it be provided that in process step c) the transition condition from locked to active free-wheeling is only satisfied if the adjusting device for the power actuator of the drive motor via a preset or presettable amount actuated has been. This can be done for example by a deflection of the accelerator pedal via a be realized predetermined deflection. By this variant becomes a rather random one Actuate this actuator by the driver than for the freewheeling function ignored relevant.
Als vorteilhaft beurteilt wird ebenfalls, wenn bei aktivierter Freilauffunktion der Antriebsmotor komplett oder teilweise abgeschaltet wird, wodurch sich eine weitere Reduktion des Kraftstoffverbrauches realisieren lässt. Hierbei kann es in weiterer Ausgestaltung vorgesehen sein, dass bestimmte oder alle Nebenaggregate über wenigstens einen gesonderten Antrieb betrieben werden, beispielsweise durch wenigstens einen elektromotorischen Antrieb.When is judged advantageous also when activated freewheeling function the drive motor is completely or partially shut down, resulting in to realize a further reduction in fuel consumption. in this connection It may be provided in a further embodiment that certain or all ancillaries over operated at least one separate drive, for example by at least one electric motor drive.
Bevorzugt ist es ebenso, dass die Freigabebedingung für die Freilauffunktion um eine Abhängigkeit von einer oder mehrerer Größen ergänzt wird, mit dem Ziel, entweder eine noch höhere Kraftstoffersparnis zu erzielen und/oder um den Fahrbetrieb sicherer zu gestalten. Hierzu können zum Beispiel die Fahrzeuggeschwindigkeit, eine Temperatur des Antriebsmotors, der aktuell eingelegte oder vorgewählte Getriebegang, oder ein gemessenes oder berechnetes Antriebsmoment des Antriebsmotors gehören, deren Signale der elektronischen Steuereinheit zugeführt werden.Prefers it is also the case that the release condition for the freewheel function by one dependence is supplemented by one or more sizes, with the goal, either an even higher one Achieve fuel economy and / or safer driving to design. You can do this for example the vehicle speed, a temperature of the drive motor, the currently engaged or preselected transmission gear, or a measured or calculated drive torque of the drive motor belong whose Signals are supplied to the electronic control unit.
Der Einfluss des Antriebsmomentes des Antriebsmotors wird wiederum in bevorzugter Ausgestaltung dann unterdrückt, wenn sich der Antriebsstrang nahe an der Grenze zwischen Zug- und Schubbetrieb befindet.Of the Influence of the drive torque of the drive motor is in turn preferred embodiment then suppressed when the drive train located near the border between train and push operation.
Als weitere Größen können in Alleinstellung oder ergänzend bzw. alternativ bekannte Daten der Fahrstrecke ausgewertet werden, beispielsweise durch Hinterlegung von digitalen Landkarten oder durch ein Navigationssystem. Hierdurch kann beispielsweise in bekannten Gefällestrecken mit zu großer Neigung die Freilauffunktion automatisch unterdrückt werden. Die Daten der Fahrstrecke können dabei in der elektronischen Steuereinheit gespeichert sein oder dynamisch aus einem Navigationssystem ausgelesen und/oder ergänzt werden.When more sizes can be found in Unique or complementary or alternatively known data of the route are evaluated, for example, by depositing digital maps or by a navigation system. As a result, for example, in known downgrades with too big Tilt the freewheel function are automatically suppressed. The data of the route can do it be stored in the electronic control unit or dynamic be read from a navigation system and / or supplemented.
Weiterhin kann es bevorzugt sein, dass der Verkehrsfluss dahingehend ausgewertet wird, dass eine Abstands- und/oder Geschwindigkeitsmessung zum Beispiel zu einem vorausfahrenden Fahrzeug ausgewertet wird. Werden dabei als kritisch eingestufte Werte erkannt, so wird die Freigabe der Freilauffunktion nicht erteilt.Farther It may be preferred that the traffic flow is evaluated to this effect is that a distance and / or speed measurement, for example is evaluated to a preceding vehicle. Be there recognized as critical values, the release of the Free-running function not granted.
Claims (10)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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DE102005003608A DE102005003608A1 (en) | 2005-01-26 | 2005-01-26 | Drivetrain operating method e.g. for vehicle, involves having propulsion engine such as internal combustion engine and torque converter such as automatic gearbox, or automated manual gearbox |
PCT/EP2005/010157 WO2006079367A1 (en) | 2005-01-26 | 2005-09-21 | Method for operation of the drivetrain of a vehicle |
Applications Claiming Priority (1)
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DE102005003608A DE102005003608A1 (en) | 2005-01-26 | 2005-01-26 | Drivetrain operating method e.g. for vehicle, involves having propulsion engine such as internal combustion engine and torque converter such as automatic gearbox, or automated manual gearbox |
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DE102005003608A1 true DE102005003608A1 (en) | 2006-08-03 |
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DE102005003608A Ceased DE102005003608A1 (en) | 2005-01-26 | 2005-01-26 | Drivetrain operating method e.g. for vehicle, involves having propulsion engine such as internal combustion engine and torque converter such as automatic gearbox, or automated manual gearbox |
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EP1923291A2 (en) | 2006-11-17 | 2008-05-21 | Robert Bosch Gmbh | Method for utilising the impetus of a motor vehicle and device therefor |
DE102007036794A1 (en) * | 2007-08-03 | 2009-02-05 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Driving strategy determining method for motor vehicle, involves determining each set-driving speed profile for respective high and low priority sub-groups of selected non-continuous driven distance segments corresponding to preset criterion |
FR2935125A1 (en) * | 2008-08-25 | 2010-02-26 | Peugeot Citroen Automobiles Sa | Free wheel mode managing system for e.g. hybrid vehicle, has activation unit activating free wheel mode on action exerted by driver, where activation unit stops heat engine of motor vehicle and uncouples wheel driving device from engine |
DE102008042959A1 (en) * | 2008-10-20 | 2010-04-22 | Zf Friedrichshafen Ag | Method for controlling a motor vehicle drive train |
US8016724B2 (en) | 2006-01-28 | 2011-09-13 | Zf Friedrichshafen Ag | Drive train of a motor vehicle |
CN102211578A (en) * | 2010-04-07 | 2011-10-12 | 罗伯特·博世有限公司 | Method for operating a vehicle |
FR2961461A1 (en) * | 2010-06-16 | 2011-12-23 | Porsche Ag | METHOD FOR SELECTING A REPORT OF AN AUTOMATIC TRANSMISSION OF A MOTOR VEHICLE AND ASSOCIATED DEVICE |
DE102011100754A1 (en) | 2011-05-07 | 2012-03-29 | Daimler Ag | Power train for motor vehicle e.g. hybrid vehicle, has shaft that is coupled with electric machine, when shaft is rotated in one direction and spaced apart from electric machine when shaft is rotated in reverse direction |
WO2012138263A1 (en) * | 2011-04-05 | 2012-10-11 | Volvo Lastavagnar Ab | System and method for operating an engine of a vehicle |
WO2016071077A1 (en) * | 2014-11-03 | 2016-05-12 | Robert Bosch Gmbh | Method for the open-loop or closed-loop control of a vehicle transmission during coasting processes of the vehicle |
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CN102211578B (en) * | 2010-04-07 | 2017-01-18 | 罗伯特·博世有限公司 | Method for operating a vehicle |
FR2961461A1 (en) * | 2010-06-16 | 2011-12-23 | Porsche Ag | METHOD FOR SELECTING A REPORT OF AN AUTOMATIC TRANSMISSION OF A MOTOR VEHICLE AND ASSOCIATED DEVICE |
CN103459226A (en) * | 2011-04-05 | 2013-12-18 | 沃尔沃拉斯特瓦格纳公司 | System and method for operating an engine of a vehicle |
EP2694343A4 (en) * | 2011-04-05 | 2015-06-10 | Volvo Lastvagnar Ab | System and method for operating an engine of a vehicle |
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WO2012138263A1 (en) * | 2011-04-05 | 2012-10-11 | Volvo Lastavagnar Ab | System and method for operating an engine of a vehicle |
DE102011100754A1 (en) | 2011-05-07 | 2012-03-29 | Daimler Ag | Power train for motor vehicle e.g. hybrid vehicle, has shaft that is coupled with electric machine, when shaft is rotated in one direction and spaced apart from electric machine when shaft is rotated in reverse direction |
US10071801B2 (en) | 2013-08-13 | 2018-09-11 | The United States Of America As Represented By The Administrator Of Nasa | Tri-rotor aircraft capable of vertical takeoff and landing and transitioning to forward flight |
US10538321B2 (en) | 2013-08-13 | 2020-01-21 | United States Of America As Represented By The Administrator Of Nasa | Tri-rotor aircraft capable of vertical takeoff and landing and transitioning to forward flight |
WO2016071077A1 (en) * | 2014-11-03 | 2016-05-12 | Robert Bosch Gmbh | Method for the open-loop or closed-loop control of a vehicle transmission during coasting processes of the vehicle |
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