DE102008058625A1 - Method for producing creep moment in motor vehicle, involves computing individual creep moments in individual trains, and controlling control devices for producing computed individual creep moments in trains - Google Patents
Method for producing creep moment in motor vehicle, involves computing individual creep moments in individual trains, and controlling control devices for producing computed individual creep moments in trains Download PDFInfo
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- DE102008058625A1 DE102008058625A1 DE102008058625A DE102008058625A DE102008058625A1 DE 102008058625 A1 DE102008058625 A1 DE 102008058625A1 DE 102008058625 A DE102008058625 A DE 102008058625A DE 102008058625 A DE102008058625 A DE 102008058625A DE 102008058625 A1 DE102008058625 A1 DE 102008058625A1
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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
- B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
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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
- 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
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/52—Driving a plurality of drive axles, e.g. four-wheel drive
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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
- 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
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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
- 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
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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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
- B60W10/11—Stepped gearings
- B60W10/113—Stepped gearings with two input flow paths, e.g. double clutch transmission selection of one of the torque flow paths by the corresponding input clutch
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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
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- 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
- B60L2240/423—Torque
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- 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
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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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0666—Engine torque
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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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/08—Electric propulsion units
- B60W2710/083—Torque
-
- 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
- B60W2710/10—Change speed gearings
- B60W2710/105—Output torque
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
Description
Gebiet der ErfindungField of the invention
Die Erfindung bezieht sich auf ein Verfahren zur Erzeugung eines Kriechmomentes in einem Kraftfahrzeug mit einer Mehrzahl von unabhängig steuerbaren Triebsträngen, die jeweils wenigstens eine Momentenquelle sowie eine Momentenübertragungseinrichtung zu einem Abtrieb aufweisen, wobei in jedem Triebstrang wenigstens eine Momentenquelle und/oder wenigstens ein Element der Momentenübertragungseinrichtung steuerbar und mit einem entsprechenden Einzelsteuergerät verbunden sind.The The invention relates to a method for generating a creeping torque in a motor vehicle having a plurality of independently controllable Drive trains, the at least one torque source and a torque transmission device to an output, wherein in each driveline at least a moment source and / or at least one element of the torque transmission device controllable and connected to a corresponding individual control unit are.
Die Erfindung bezieht sich weiter auf ein Kraftfahrzeug mit einer Mehrzahl von unabhängig steuerbaren Triebsträngen, die jeweils wenigstens eine Momentenquelle sowie eine Momentenübertragungseinrichtung zu einem Abtrieb aufweisen, wobei in jedem Triebstrang wenigstens eine Momentenquelle und/oder wenigstens ein Element der Momentenübertragungseinrichtung steuerbar und mit einem entsprechenden Einzelsteuergerät verbunden sind.The The invention further relates to a motor vehicle having a plurality independently controllable Drive trains, the at least one torque source and a torque transmission device to an output, wherein in each driveline at least a moment source and / or at least one element of the torque transmission device controllable and connected to a corresponding individual control unit are.
Stand der TechnikState of the art
Im Stand der Technik sind Kraftfahrzeuge mit mehreren Triebsträngen bekannt. Beispielsweise ist es bekannt, die Hinterachse eines Kraftfahrzeugs mit einem direkt angekoppelten Elektromotor und die Vorderachse mit einem über ein Getriebe angekoppelten Verbrennungsmotor oder einer Kombination aus einem Verbrennungs- und einem Elektromotor anzutreiben. Die Momentenbeiträge, die jeder Triebstrang an dem ihm zugeordneten Abtrieb, der sich beispielsweise aus Differentials, Achse und Rädern zusammensetzt, erzeugt und somit zum Gesamtmoment, welches auf das Kraftfahrzeug insgesamt wirkt, beiträgt, sind grundsätzlich unabhängig voneinander steuerbar. In der Regel erfolgt die Steuerung jedoch in Abstimmung der einzelnen Triebstrangbeiträge, sodass das Kraftfahrzeug insgesamt in jeder Fahrsituation in einem möglichst vorteilhaften Betriebszustand betrieben werden kann. Dabei ist das, was jeweils als vorteilhaft anzusehen ist, situationsabhängig. Beispielsweise kann dies ein besonders wirtschaftliches Fahren, eine besonders große Beschleunigung in Gefahrensituationen oder anderes sein.in the Prior art motor vehicles with multiple drive trains are known. For example, it is known the rear axle of a motor vehicle with a directly coupled electric motor and the front axle with one over a gearbox coupled combustion engine or a combination of to drive a combustion and an electric motor. The moment contributions, the each driveline at its associated output, for example from differential, axle and wheels composed, generated and thus the total moment, which on the Motor vehicle acts as a whole, contributes, are basically independent of each other controllable. In general, however, the control is done in coordination the individual drivetrain contributions, so that the motor vehicle in total in every driving situation in one preferably advantageous operating condition can be operated. It is that whichever is considered to be advantageous depending on the situation. For example This can be a particularly economical driving, especially size Acceleration in dangerous situations or otherwise.
Eine besonders problematische Fahrsituation stellt das so genannte Kriechen dar. Als Kriechen wird eine langsame Fortbewegung des Kraftfahrzeugs bezeichnet, die sich einstellt, wenn der Fahrer bei eingelegter Fahrstufe und gelöster Bremse kein Beschleunigungssignal z. B. durch Betätigung des Gaspedals gibt. Dieser Bewegungszustand ist insbesondere in Manövriersituationen oder beim Halten oder Kriechen am Berg von Bedeutung.A particularly problematic driving situation is the so-called creep As creeping is a slow locomotion of the motor vehicle designated, which occurs when the driver is engaged Gear and dissolved Brake no acceleration signal z. B. by pressing the accelerator pedal gives. This state of motion is especially in maneuvering situations or when holding or creeping on the mountain of importance.
Die jeweiligen Umsetzungen des Kriechens sind jedoch, abhängig vom jeweils eingesetzten Triebstrang bzw. der eingesetzten Kombination von Triebsträngen, technisch sehr unterschiedlich. So ist es beispielsweise von Kraftfahrzeugen mit Verbrennungsmotor und Getriebeautomaten bekannt, den Kriechzustand über die im Leerlauf laufende Verbrennungsmaschine und einen hydrodynamischen Drehmomentwandler mit geöffneter Überbrückungskupplung zu realisieren. Bei Fahrzeugen mit Doppelkupplungsgetriebe ist es hingegen bekannt, den Kriechzustand durch ein komplexes Kupplungsmanagement zu erzielen. Bei elektrischen Direktantrieben wird der Kriechzustand hingegen durch entsprechende Direktansteuerung der elektrischen Maschine realisiert. Jede der unterschiedlichen Realisierungsarten erzeugt eine andere Kriechcharakteristik.The However, respective implementations of creeping are dependent on respectively used drive train or the combination used of drive trains, technically very different. So it is for example of motor vehicles known with internal combustion engine and automatic transmission, the creep over the idling internal combustion engine and a hydrodynamic torque converter with open lock-up clutch to realize. For vehicles with dual-clutch transmission it is however, the creep condition is known by a complex clutch management to achieve. In direct electrical drives, the creep condition however, by appropriate direct control of the electrical Machine realized. Each of the different types of realization produces a different creep characteristic.
Bei Kraftfahrzeugen mit mehreren Triebsträngen ergibt sich die Schwierigkeit, dass der Fahrer je nach der gerade verwendeten Realisierungstechnik ein unterschiedliches Kriechgefühl spürt. Dies wiegt insbesondere in schwierigen Manövriersituationen, wie beispielsweise beim Einparken schwer, wenn der Fahrer die Reaktionen seines Fahrzeugs sehr genau vorhersagen können muss, um Kollisionen zu vermeiden. Ein den Fahrer überraschendes Kriechverhalten ist hier unerwünscht.at Motor vehicles with multiple drive trains results in the difficulty that the driver depending on the realization technique currently in use a different feeling of creeping senses. This weighs especially in difficult maneuvering situations, such as when parking hard, when the driver's reactions of his vehicle can predict very accurately must to avoid collisions. A driver surprising Creep behavior is undesirable here.
Aufgabenstellungtask
Es ist die Aufgabe der vorliegenden Erfindung ein Verfahren und ein Kraftfahrzeug zur Verfügung zu stellen, die dem Fahrer ein stets gleich bleibendes Kriechgefühl vermitteln.It the object of the present invention is a method and a Motor vehicle available to provide the driver an always consistent creep feeling.
Darlegung der ErfindungPresentation of the invention
Diese Aufgabe wird in Verbindung mit den Merkmalen des Oberbegriffs von Anspruch 1 dadurch gelöst, dass die Einzelsteuergeräte mit einem Hauptsteuergerät verbunden sind, in dem ein insgesamt aufzubringendes Gesamtkriechmoment vorgegeben und in den einzelnen Triebsträngen hierfür aufzubringende Einzelkriechmomente berechnet werden, und dass das Hauptsteuergerät die jeweiligen Einzelsteuergeräte zur Erzeugung der berechneten Einzelkriechmomente in den jeweils zugeordneten Triebsträngen angesteuert.These Task is combined with the features of the preamble of Claim 1 solved by that the individual control devices with a main controller are connected in which a total applied total creep given and applied in the individual drive trains for this purpose single creep moments be calculated, and that the main control unit, the respective individual control devices for generating the calculated Einzelkriechmomente in the respectively assigned drivetrains driven.
Die Aufgabe wird weiter in Verbindung mit den Merkmalen des Oberbegriffs von Anspruch 5 dadurch gelöst, dass die Einzelsteuergeräte mit einem Hauptsteuergerät verbunden sind, das Gesamtkriechmomentvorgabemittel, die ein insgesamt aufzubringendes Gesamtkriechmoment vorgeben, Berechnungsmittel, die in den einzelnen Triebsträngen zur Erzeugung des Gesamtkriechmomentes aufzubringende Einzelkriechmomente berechnen, und Steuermittel, die die jeweiligen Einzelsteuergeräte zur Erzeugung der berechneten Einzelkriechmomente in den jeweils zugeordneten Triebsträngen ansteuern, umfasst.The object is further achieved in conjunction with the features of the preamble of claim 5, characterized in that the individual control units are connected to a main control unit, the Gesamtkriechmomentvorgabemittel, which specify a total applied total creep torque, calculating means calculate the applied in the individual drive trains for generating the total creep torque Einzelkriechmomente , and control means containing the respective individual control devices for driving the calculated Einzelkriechmomente in the respectively assigned drive trains to drive includes.
Bevorzugte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.preferred embodiments are the subject of the dependent Claims.
Grundidee der vorliegenden Erfindung ist es, im Kriechfall zunächst ein Gesamtkriechmoment, das auf das Kraftfahrzeug insgesamt wirken soll, rechnerisch vorzugeben. Der Begriff des Gesamtkriechmomentes umfasst hierbei nicht nur einen isolierten, beispielsweise in Nm (Newtonmeter) angegebenen Wert, der auf irgendeine Weise zu erreichen wäre. Der Begriff umfasst vielmehr auch die Zeitabhängigkeit des gewünschten Kriechmomentes, das auf das Kraftfahrzeug einwirken soll. Mit anderen Worten bedeutet dies, dass auch die Form des Aufbaus des letztendlich wirksamen Zielmomentes von dem Begriff umfasst ist. Das Zielkriechmoment und die Form seines Aufbaus bestimmen das vom Fahrer empfundene Kriechgefühl. Dieses stets gleich und von der speziellen Art und Weise seiner Erzeugung unabhängig zu halten, ist das Ziel der vorliegenden Erfindung. Hierzu wird das Gesamtkriechmoment zunächst geeignet vorgegeben. Es kann dies beispielsweise durch Abrufen eines Wertes oder einer zeitlich abhängigen Funktion aus einem Speicher des Hauptsteuergerätes erfolgen. Anschließend werden durch geeignete Berechnungsmittel diejenigen Teilbeträge der unterschiedlichen Triebstränge berechnet, die erforderlich sind, um gemeinsam das gewünschte Gesamtkriechmoment zu bilden. Bei der Berechnung der Teilmomente wird insbesondere auch die Charakteristik des jeweils steuerbaren Elementes, z. B. eines Motors, eines Wandlers und/oder einer Kupplung, einbezogen. Diese Charakteristiken sind entweder in dem Hauptsteuergerät in geeigneter Form hinterlegt oder werden dem Hauptsteuergerät von den Einzelsteuergeräten bedarfsweise kommuniziert. Das Gesamtkriechmoment wird dabei vorzugsweise als Summe der Einzelkriechmomente berechnet.The basic idea The present invention is, in creep first a Total creep moment, which should affect the motor vehicle as a whole, mathematically pretend. The term total creep torque includes not just an isolated one, for example in Nm (Newton meters) specified value that could be achieved in any way. Of the Rather, term also includes the time dependence of the desired Creep torque which is to act on the motor vehicle. With others In words, this also means that the shape of the structure of the final effective target moment of the term is included. The target creep moment and the shape of its structure determine the driver's feeling Kriechgefühl. This always the same and of the special way of his Generation independent is the goal of the present invention. For this purpose is the total creep moment first suitably specified. It can do this, for example, by retrieving a Value or a time-dependent one Function from a memory of the main control unit done. Then be by suitable calculation means those partial amounts of the different drive trains calculated, which are necessary to collect the desired total creep torque to build. When calculating the partial moments in particular also the characteristic of each controllable element, z. B. one Motors, a converter and / or a clutch included. These Characteristics are suitable either in the main control unit Form deposited or the main control unit of the individual control units as needed communicated. The total creep torque is preferably as Sum of single creep moments calculated.
Es ist offensichtlich, dass für die vorliegende Erfindung eine schnelle und zuverlässige Kommunikation zwischen den Einzelsteuergeräten und dem Hauptsteuergerät erforderlich ist. Insbesondere in Fällen, in denen die relativen Beiträge der einzelnen Triebstränge zur Erzielung eines vorgegebenen Verlaufs des insgesamt auf das Fahrzeug wirkenden Kriechmomentes zeitlich variieren, ist eine verzögerungsfreie oder zumindest verzögerungsarme Kommunikation wesentlich. Diese wird bevorzugt erreicht, indem die Einzelsteuergeräte über einen Feldbus, bevorzugt einen A-CAN-Bus miteinander verbunden sind, um miteinander zu kommunizieren.It is obvious that for the present invention provides fast and reliable communication between the individual control units and the main controller is required. Especially in cases where the relative posts the individual drive trains to achieve a predetermined course of the total on the Vehicle acting creeping torque vary in time, is a delay-free or at least low-latency Communication essential. This is preferably achieved by the Individual control units via a Fieldbus, preferably an A-CAN bus are interconnected to communicate with each other.
Weitere Merkmale und Vorteile der vorliegenden Erfindung ergeben sich aus der nachfolgenden, speziellen Beschreibung und der beigefügten Zeichnung.Further Features and advantages of the present invention will become apparent the following special description and the attached drawing.
Kurzbeschreibung der ZeichnungBrief description of the drawing
Es zeigt:It shows:
Ausführliche Darstellung einer bevorzugten AusführungsformDetailed presentation of a preferred embodiment
Die
Momentenquelle eines zweiten Triebstrangs ist eine elektrische Maschine
Die
beiden Steuergeräte
Das
Hauptsteuergerät
Natürlich stellt die in der speziellen Beschreibung diskutierte und in der Zeichnung gezeigte Ausführungsform nur ein illustratives Ausführungsbeispiel der vorliegenden Erfindung dar. Dem Fachmann ist im Lichte der hiesigen Offenbarung ein breites Spektrum an Variationsmöglichkeiten anhand gegeben. Insbesondere kann die spezielle Vorgabe des Gesamtkriechmomentes vom Fachmann nahezu frei gewählt werden. Auch die konkreten Ausführungen der einzelnen Triebstränge sind in weiten Grenzen variierbar. Gleiches gilt für die Zahl der verwendeten Triebstränge.Of course those discussed in the specific description and in the drawing shown embodiment only an illustrative embodiment The expert is in the light of the local Revelation given a wide range of possible variations. In particular, the special specification of the total creep torque chosen by the expert almost freely become. Also the concrete remarks of the individual drive trains are variable within wide limits. The same applies to the number the used drive trains.
- 1010
- Verbrennungsmotorinternal combustion engine
- 1212
- DoppelkupplungsgetriebeDouble clutch
- 1414
- Differentialdifferential
- 1616
- VorderachseFront
- 1818
- EinzelsteuergerätIndividual control device
- 2020
- Elektromotorelectric motor
- 2424
- Differentialdifferential
- 2626
- Hinterachserear axle
- 2828
- EinzelsteuergerätIndividual control device
- 3030
- HauptsteuergerätMain control unit
Claims (8)
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DE102008058625A DE102008058625A1 (en) | 2008-11-22 | 2008-11-22 | Method for producing creep moment in motor vehicle, involves computing individual creep moments in individual trains, and controlling control devices for producing computed individual creep moments in trains |
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DE102008058625A DE102008058625A1 (en) | 2008-11-22 | 2008-11-22 | Method for producing creep moment in motor vehicle, involves computing individual creep moments in individual trains, and controlling control devices for producing computed individual creep moments in trains |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011005962A1 (en) * | 2011-03-23 | 2012-09-27 | Bayerische Motoren Werke Aktiengesellschaft | Method for dividing torque requirement for e.g. front and rear axles of motor car, involves limiting division parameter based on upper and lower axle torque threshold values, and dividing torque requirement using limited parameter |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030034188A1 (en) * | 2001-08-13 | 2003-02-20 | Nissan Motor Co., Ltd. | Hybrid system for vehicle with 4WD start mode |
DE10151502A1 (en) * | 2000-10-20 | 2003-04-03 | Ford Global Tech Inc | Stop and control system for internal combustion engine |
EP1533166A2 (en) * | 2003-11-18 | 2005-05-25 | Fuji Jukogyo Kabushiki Kaisha | Drive power controller for hybrid vehicle |
DE102006012788A1 (en) * | 2006-03-21 | 2007-09-27 | Fev Motorentechnik Gmbh | Hybrid drive`s torque distributing method for use in e.g. hybrid electric vehicle, involves determining torque requested by driver, where provisional torque of internal combustion engine is determined from requested torque |
DE102008037408A1 (en) * | 2007-10-05 | 2009-04-16 | Ford Global Technologies, LLC, Dearborn | Vehicle crawler control for a hybrid electric vehicle |
-
2008
- 2008-11-22 DE DE102008058625A patent/DE102008058625A1/en not_active Ceased
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10151502A1 (en) * | 2000-10-20 | 2003-04-03 | Ford Global Tech Inc | Stop and control system for internal combustion engine |
US20030034188A1 (en) * | 2001-08-13 | 2003-02-20 | Nissan Motor Co., Ltd. | Hybrid system for vehicle with 4WD start mode |
EP1533166A2 (en) * | 2003-11-18 | 2005-05-25 | Fuji Jukogyo Kabushiki Kaisha | Drive power controller for hybrid vehicle |
DE102006012788A1 (en) * | 2006-03-21 | 2007-09-27 | Fev Motorentechnik Gmbh | Hybrid drive`s torque distributing method for use in e.g. hybrid electric vehicle, involves determining torque requested by driver, where provisional torque of internal combustion engine is determined from requested torque |
DE102008037408A1 (en) * | 2007-10-05 | 2009-04-16 | Ford Global Technologies, LLC, Dearborn | Vehicle crawler control for a hybrid electric vehicle |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011005962A1 (en) * | 2011-03-23 | 2012-09-27 | Bayerische Motoren Werke Aktiengesellschaft | Method for dividing torque requirement for e.g. front and rear axles of motor car, involves limiting division parameter based on upper and lower axle torque threshold values, and dividing torque requirement using limited parameter |
DE102011005962B4 (en) | 2011-03-23 | 2023-07-27 | Bayerische Motoren Werke Aktiengesellschaft | Splitting a torque requirement between two drive axles of a motor vehicle driven by different engines |
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