DE102011000609A1 - Method for operating hybrid vehicle i.e. hybrid motor car, involves transmitting constant torque by gear box input clutch, and providing rotational torque by electric machine to drive hybrid motor car - Google Patents

Method for operating hybrid vehicle i.e. hybrid motor car, involves transmitting constant torque by gear box input clutch, and providing rotational torque by electric machine to drive hybrid motor car Download PDF

Info

Publication number
DE102011000609A1
DE102011000609A1 DE102011000609A DE102011000609A DE102011000609A1 DE 102011000609 A1 DE102011000609 A1 DE 102011000609A1 DE 102011000609 A DE102011000609 A DE 102011000609A DE 102011000609 A DE102011000609 A DE 102011000609A DE 102011000609 A1 DE102011000609 A1 DE 102011000609A1
Authority
DE
Germany
Prior art keywords
electric machine
hybrid vehicle
motor car
internal combustion
combustion engine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE102011000609A
Other languages
German (de)
Inventor
Sebastian Rüger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Priority to DE102011000609A priority Critical patent/DE102011000609A1/en
Publication of DE102011000609A1 publication Critical patent/DE102011000609A1/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • 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
    • B60K6/22—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 apparatus, components or means specially adapted for HEVs
    • B60K6/38—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 apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • 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
    • 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
    • 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
    • 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
    • B60W30/188—Controlling power parameters of the driveline, e.g. determining the required power
    • B60W30/1882—Controlling power parameters of the driveline, e.g. determining the required power characterised by the working point of the engine, e.g. by using engine output chart
    • 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
    • B60W30/192—Mitigating problems related to power-up or power-down of the driveline, e.g. start-up of a cold engine
    • 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

Abstract

The method involves driving front and rear axles (2, 4) of a hybrid motor car (1) by two different electric machines (7, 9). A common transmission input shaft (13) is driven by an internal combustion engine (8), where the electric machines are operated as generators. A gear box input clutch (15) i.e. twin clutch, is arranged behind the internal combustion engine and one of the electric machines. Constant torque is transmitted by the gear box input clutch. Rotational torque is provided by the other electric machine to drive the hybrid motor car.

Description

Die Erfindung betrifft ein Verfahren zum Betreiben eines Hybridfahrzeuges, insbesondere eines mit einem Hybrid-Antrieb ausgestatteten Personenkraftfahrzeuges.The invention relates to a method for operating a hybrid vehicle, in particular a passenger car equipped with a hybrid drive.

Hybrid-Antriebe sind aufgrund stetig steigender Energie- und Treibstoffkosten sowie zunehmend schärferer Umweltauflagen eine Antriebsform, die sich wachsender Beliebtheit erfreut. Dabei ermöglicht es ein Hybrid-Antrieb, eine Verbrennungskraftmaschine unter wesentlich günstigeren Bedingungen zu betreiben, da eine Elektromaschine die für die Verbrennungskraftmaschine ungünstigen Drehzahlbereiche abdecken kann. Insbesondere liefert eine Verbrennungskraftmaschine erst in einem höheren Drehzahlbereich auch ein hohes Drehmoment, welches eine Elektromaschine schon beim Anfahren, also bei geringeren Drehzahlen, zur Verfügung stellen kann. Bei höherer Drehzahl hingegen lässt die Elektromaschine im Drehmoment nach. Durch Kombination der beiden Motoren lässt sich ein Fahrzeug schneller beschleunigen und mit besserem Wirkungsgrad betreiben.Hybrid drives are a form of propulsion that is growing in popularity due to steadily rising energy and fuel costs and increasingly stringent environmental regulations. In this case, a hybrid drive makes it possible to operate an internal combustion engine under substantially more favorable conditions, since an electric machine can cover the speed ranges which are unfavorable for the internal combustion engine. In particular, an internal combustion engine only provides a high torque in a higher speed range, which an electric machine can already provide when starting up, that is to say at lower rotational speeds. At higher speed, however, the electric machine is in torque. By combining the two engines, a vehicle can be accelerated faster and operated with better efficiency.

Bei einem Fahrzeug mit Parallelhybrid-Antrieb ist üblicherweise eine Trennkupplung zwischen der Verbrennungskraftmaschine und der Elektromaschine angeordnet. Im Kraftfluss dahinter ist ein Getriebe vorgesehen, welches beispielsweise als Planeten-, Schalt- oder Doppelkupplungsgetriebe ausgebildet sein kann. Ein derartiges Getriebe ist üblicherweise aus dem entsprechenden, nicht hybridisierten Betriebsstrang übernommen und weist eingangsseitig, und damit zwischen der Elektromaschine und dem Getriebe, eine Trockenkupplung oder eine Doppelkupplung auf.In a vehicle with parallel hybrid drive usually a clutch between the internal combustion engine and the electric machine is arranged. In the power flow behind a gear is provided, which may be formed for example as a planetary, shift or dual clutch transmission. Such a transmission is usually taken from the corresponding, non-hybridized operating line and has on the input side, and thus between the electric machine and the transmission, a dry clutch or a double clutch.

Aus der DE 10 2007 001 895 A1 ist ein Hybrid-Antrieb für ein Kraftfahrzeug bekannt, mit einer Verbrennungskraftmaschine, einer Elektromaschine, einem Getriebe und einer mit einer Getriebeausgangsseite verbundenen, antreibbaren Achse. Zwischen der Verbrennungskraftmaschine und der Elektromaschine ist eine Kupplung angeordnet, wobei das Getriebe eingangsseitig direkt mit der Elektromaschine und ausgangsseitig direkt mit der antreibbaren Achse verbunden ist. Um ein Wiederstarten des Verbrennungsmotors zu ermöglichen, ist das Getriebe in einen Schlupfzustand schaltbar, in welchem es ein definiertes, regelbares Drehmoment von der Getriebeeingangsseite auf die Getriebeausgangsseite überträgt.From the DE 10 2007 001 895 A1 For example, a hybrid drive for a motor vehicle is known, comprising an internal combustion engine, an electric machine, a transmission and a drivable axle connected to a transmission output side. Between the internal combustion engine and the electric machine, a clutch is arranged, wherein the transmission is the input side directly connected to the electric machine and the output side directly to the drivable axle. To enable the engine to restart, the transmission is shiftable to a slip state in which it transmits a defined, controllable torque from the transmission input side to the transmission output side.

Aufgabe der vorliegenden Erfindung ist es, ein Verfahren zum Betreiben eines Hybridfahrzeuges anzugeben, dass es ermöglicht, eine Verbrennungskraftmaschine, bei veränderlichem Gesamtmoment zum Antreiben des Fahrzeugs, mit einem einstellbaren, stationären Betriebspunkt zu betreiben.The object of the present invention is to provide a method for operating a hybrid vehicle, which makes it possible to operate an internal combustion engine, with varying total torque for driving the vehicle, with an adjustable, stationary operating point.

Die Erfindung schlägt zur Lösung dieser Aufgabe ein Verfahren gemäß den Merkmalen des Patentanspruchs 1 vor.To solve this problem, the invention proposes a method according to the features of patent claim 1.

Bei dem erfindungsgemäßen Verfahren zum Betreiben des Hybridfahrzeugs ist somit eine Achse des Hybridfahrzeugs mittels mindestens einer ersten Elektromaschine antreibbar und es ist eine andere Achse des Hybridfahrzeugs mittels mindestens einer zweiten Elektromaschine und einer Verbrennungskraftmaschine über eine gemeinsame Getriebeeingangswelle antreibbar. Im Kraftfluss hinter der Verbrennungskraftmaschine und der mindestens einen zweiten Elektromaschine ist eine Getriebeeingangskupplung angeordnet. Die Getriebeeingangskupplung wird, zum Übertragen eines konstanten Drehmoments, auf Schlupf geschaltet und die mindestens eine zweite Elektromaschine als Generator betrieben. Das restliche Drehmoment zum Antreiben des Hybridfahrzeugs wird über die mindestens eine erste Elektromaschine bereitgestellt.In the method according to the invention for operating the hybrid vehicle, therefore, one axle of the hybrid vehicle can be driven by means of at least one first electric machine and another axle of the hybrid vehicle can be driven by means of at least one second electric machine and an internal combustion engine via a common transmission input shaft. In the power flow behind the internal combustion engine and the at least one second electric machine, a transmission input clutch is arranged. The transmission input clutch is switched to slip for transmitting a constant torque, and the at least one second electric machine operated as a generator. The remaining torque for driving the hybrid vehicle is provided via the at least one first electric machine.

Die Verbrennungskraftmaschine des Parallelhybrid-Antriebs liefert somit ein konstantes Moment, dass durch den an der Getriebeeingangskupplung eingestellten Schlupf begrenzt wird, zum Antrieb des Hybridfahrzeugs. Das restliche Moment zum Antrieb des Hybridfahrzeugs, d. h. der Anteil des gesamten Moments, der über das konstante Moment hinausgeht, insbesondere der hochdynamische Anteil am gesamten Moment, wird über den elektrischen Achsantrieb von der mindestens einen ersten Elektromaschine bereitgestellt.The internal combustion engine of the parallel hybrid drive thus provides a constant torque, which is limited by the slip set at the transmission input clutch, for driving the hybrid vehicle. The remaining moment to drive the hybrid vehicle, d. H. the proportion of the total torque that goes beyond the constant moment, in particular the highly dynamic proportion of the total moment, is provided by the electric axle drive from the at least one first electric machine.

Damit ergibt sich der Vorteil eines einstellbaren stationären Betriebspunktes an der Verbrennungskraftmaschine, damit eine Verbesserung von deren Emissionen. Zudem bewirkt dies die Möglichkeit, Diagnoseprogramme an der Verbrennungskraftmaschine anzuwenden.This results in the advantage of an adjustable stationary operating point on the internal combustion engine, thus improving their emissions. In addition, this causes the possibility of applying diagnostic programs to the internal combustion engine.

Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen beschrieben.Advantageous developments of the invention are described in the subclaims.

Bevorzugte Ausführungsbeispiele der vorliegenden Erfindung sind im Folgenden, anhand der Zeichnung, näher erläutert, ohne auf diese Ausführungsbeispiele beschränkt zu sein.Preferred embodiments of the present invention are explained below with reference to the drawing, without being limited to these embodiments.

Es zeigt:It shows:

1 ein Antriebsschema eines Hybrid-Kraftfahrzeugs mit Vorderachse und Hinterachse sowie Hybridkomponenten zum erfindungsgemäßen Betreiben des Hybridfahrzeugs, wobei die Verbrennungskraftmaschine der Hinterachse zugeordnet ist, 1 a drive diagram of a hybrid motor vehicle with front axle and rear axle and hybrid components for operating the hybrid vehicle according to the invention, wherein the internal combustion engine is assigned to the rear axle,

2 ein Antriebsschema gemäß 1, allerdings dahingehend modifiziert, dass die Verbrennungskraftmaschine der Vorderachse zugeordnet ist. 2 a drive scheme according to 1 , but modified so that the internal combustion engine is assigned to the front axle.

Ein allgemein mit der Bezugsziffer 1 bezeichnetes Hybrid-Kraftfahrzeug weist eine Vorderachse 2 und dieser zugeordnete Vorderräder 3 auf, ferner eine Hinterachse 4 und dieser zugeordnete Hinterräder 5 auf. Die Vorwärtsfahrtrichtung des Kraftfahrzeugs 1 ergibt sich somit im Sinne der Orientierung des Fahrtrichtungspfeils 6. Der Vorderachse 2 ist mindestens eine erste Elektromaschine zugeordnet, im vorliegenden Fall eine einzige erste Elektromaschine 7 mit der die Vorderachse 2 antreibbar ist. Zum Antreiben der Hinterachse 4 dient eine Verbrennungskraftmaschine 8 und mindestens eine zweite Elektromaschine, wobei im Ausführungsbeispiel eine einzige zweite Elektromaschine 9 vorgesehen ist. Eine Ausgangswelle 10 der Verbrennungskraftmaschine 8 ist mittels einer optional vorgesehenen Kupplung 11 mit einer Eingangs/Ausgangswelle 12 der zweiten Elektromaschine 9 koppelbar. Diese Welle 12 ist ausgangsseitig mit einer Eingangswelle 13 eines Getriebes 14, das insbesondere als Doppelkupplungsgetriebe ausgebildet ist, mittels einer Kupplung 15, bei der es sich insbesondere um eine Doppelkupplung handelt, koppelbar. Das Getriebe 14 treibt über die Hinterachse 4 die. Hinterräder 5 an.A generally with the reference number 1 designated hybrid motor vehicle has a front axle 2 and this associated front wheels 3 on, furthermore a rear axle 4 and this associated rear wheels 5 on. The forward direction of travel of the motor vehicle 1 thus results in the sense of orientation of the direction arrow 6 , The front axle 2 At least one first electric machine is assigned, in the present case a single first electric machine 7 with the front axle 2 is drivable. To drive the rear axle 4 serves an internal combustion engine 8th and at least a second electric machine, wherein in the embodiment, a single second electric machine 9 is provided. An output shaft 10 the internal combustion engine 8th is by means of an optional provided coupling 11 with an input / output shaft 12 the second electric machine 9 coupled. This wave 12 is output side with an input shaft 13 a gearbox 14 , which is designed in particular as a double-clutch transmission, by means of a coupling 15 , which is in particular a double clutch, coupled. The gear 14 drives over the rear axle 4 the. rear wheels 5 at.

Die erste Elektromaschine 7 stellt somit den einzigen Antrieb der Vorderachse 2 des Hybridfahrzeugs dar (elektrischer Achsantrieb). Die andere Achse – Hinterachse 4 – des Hybridfahrzeugs wird von der Verbrennungskraftmaschine 8 und der zweiten Elektromaschine 9 auf der gemeinsamen Getriebeeingangswelle 13 angetrieben (Parallelhybrid-Antrieb).The first electric machine 7 thus represents the only drive of the front axle 2 of the hybrid vehicle is (electric final drive). The other axle - rear axle 4 - The hybrid vehicle is from the internal combustion engine 8th and the second electric machine 9 on the common transmission input shaft 13 powered (parallel hybrid drive).

Es ist nun zeitweise ein Betrieb derart vorgesehen, dass die, im Kraftfluss hinter der Verbrennungskraftmaschine 8 und der zweiten Elektromaschine 9 angeordnete Getriebeeingangskupplung 15 auf Schlupf geschaltete wird und die zweite Elektromaschine 9 als Generator betrieben wird. Damit liefert die Verbrennungskraftmaschine 8 des Parallelhybrid-Antriebs ein konstantes Moment, dass durch den an der Getriebeeingangskupplung 15 eingestellten Schlupf begrenzt wird, zum Antrieb des Hybridfahrzeugs, und zwar im Bereich der Hinterachse 4. Das restliche Moment zum Antrieb des Hybridfahrzeugs, d. h. der Anteil des Gesamtmoments, der über das konstante Moment hinausgeht, insbesondere der hochdynamische Anteil am Gesamtmoment, wird über den elektrischen Achsantrieb von der ersten Elektromaschine 7 bereitgestellt, die mit der Vorderachse 2 zusammenwirkt.It is now at times an operation provided such that, in the power flow behind the internal combustion engine 8th and the second electric machine 9 arranged transmission input clutch 15 is switched to slip and the second electric machine 9 operated as a generator. Thus provides the internal combustion engine 8th of the parallel hybrid drive a constant moment that by the at the transmission input clutch 15 set slip is limited to drive the hybrid vehicle, in the area of the rear axle 4 , The remaining moment to drive the hybrid vehicle, ie the proportion of the total torque that goes beyond the constant moment, in particular the highly dynamic proportion of the total torque, is via the electric axle drive of the first electric machine 7 provided with the front axle 2 interacts.

Diese Art des Betreibens des Hybridfahrzeugs erlaubt die Darstellung guter Emissionen und die Durchführung von Diagnosen aufgrund bestimmter stationärer Betriebspunkte der Verbrennungskraftmaschine während eines Fahrzyklus. Ziel ist es somit, die Betriebspunkte der Verbrennungskraftmaschine in bestimmten Grenzen zu halten, mit der Folge weniger Emissionen, um im Idealfall sogar stationäre Betriebspunkte der Verbrennungskraftmaschine sicherzustellen. Dazu wird die Kupplung 15 am Doppelkupplungsgetriebe 14 auf Schlupf geschaltet. Das restliche Moment zum Antrieb des Fahrzeuges liefert die Elektromaschine 7. Die Betriebspunkte der Verbrennungskraftmaschine 8 können konstant gehalten werden, die Dynamik wird über den Achsantrieb der Elektromaschine 7 bereitgestellt. Dabei handelt es sich nicht um serielles Fahren, da auch ein Teil der (mechanischen) Antriebsenergie der Verbrennungskraftmaschine 8 direkt zum Abtrieb der Achse 4 geleitet wird. Durch den Schlupf in der Kupplung 15 kann das Getriebe 14 zusätzlich mit erwärmt werden.This type of operation of the hybrid vehicle allows the representation of good emissions and the performance of diagnoses due to certain steady-state operating points of the internal combustion engine during a driving cycle. The aim is thus to keep the operating points of the internal combustion engine within certain limits, with the result of fewer emissions, ideally to ensure even stationary operating points of the internal combustion engine. This is the coupling 15 at the dual-clutch transmission 14 slipped. The remaining moment to drive the vehicle provides the electric machine 7 , The operating points of the internal combustion engine 8th can be kept constant, the dynamics is via the final drive of the electric machine 7 provided. This is not serial driving, as part of the (mechanical) drive energy of the internal combustion engine 8th directly to the output of the axle 4 is directed. Due to the slip in the clutch 15 can the gearbox 14 in addition to be heated.

Die optionale Kupplung 14 ist vorgesehen, um gegebenenfalls das Fahrzeug ausschließlich elektrisch antreiben zu können.The optional clutch 14 is provided to possibly drive the vehicle only electrically.

Der Gegenstand nach der 2 unterscheidet sich von demjenigen nach der 1 nur dadurch, dass die Elektromaschine 7 der Hinterachse 4 und die Einheit aus Elektromaschine 9, Verbrennungskraftmaschine 8 und Getriebe 14 sowie die beiden Kupplungen 11 und 15 der Vorderachse 2 zugeordnet sind.The object after the 2 is different from the one after the 1 only by the fact that the electric machine 7 the rear axle 4 and the unit of electric machine 9 , Internal combustion engine 8th and gear 14 as well as the two couplings 11 and 15 the front axle 2 assigned.

ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • DE 102007001895 A1 [0004] DE 102007001895 A1 [0004]

Claims (6)

Verfahren zum Betreiben eines Hybridfahrzeuges (1), wobei eine Achse (2 bzw. 4) des Hybridfahrzeugs (1) mittels mindestens einer ersten Elektromaschine (7) antreibbar ist und eine andere Achse (4 bzw. 2) des Hybridfahrzeugs (1) mittels mindestens einer zweiten Elektromaschine (9) und einer Verbrennungskraftmaschine (8) über eine gemeinsame Getriebeeingangswelle (13) antreibbar ist, und im Kraftfluss hinter der Verbrennungskraftmaschine (8) und der mindestens einen zweiten Elektromaschine (9) eine Getriebeeingangskupplung (15) angeordnet ist, wobei die Getriebeeingangskupplung (15), zum Übertragen eines konstanten Drehmoments, auf Schlupf geschaltet und die mindestens eine zweite Elektromaschine (9) als Generator betrieben wird, sowie das restliche Drehmoment zum Antreiben des Hybridfahrzeugs (1) über die mindestens eine erste Elektromaschine (7) bereitgestellt wird.Method for operating a hybrid vehicle ( 1 ), where one axis ( 2 respectively. 4 ) of the hybrid vehicle ( 1 ) by means of at least one first electric machine ( 7 ) is drivable and another axis ( 4 respectively. 2 ) of the hybrid vehicle ( 1 ) by means of at least one second electric machine ( 9 ) and an internal combustion engine ( 8th ) via a common transmission input shaft ( 13 ) is drivable, and in the power flow behind the internal combustion engine ( 8th ) and the at least one second electric machine ( 9 ) a transmission input clutch ( 15 ), wherein the transmission input clutch ( 15 ), for transmitting a constant torque, switched to slip and the at least one second electric machine ( 9 ) is operated as a generator, as well as the remaining torque for driving the hybrid vehicle ( 1 ) via the at least one first electric machine ( 7 ) provided. Verfahren nach Anspruch 1, wobei eine als Doppelkupplung (15) ausgebildete Getriebeeingangskupplung auf Schlupf geschaltet wird.Process according to claim 1, wherein one as a double clutch ( 15 ) trained transmission input clutch is switched to slip. Verfahren nach Anspruch 1 oder 2, wobei die andere Achse (4 bzw. 2) über ein Doppelkupplungsgetriebe (14) antreibbar ist.Method according to claim 1 or 2, wherein the other axis ( 4 respectively. 2 ) via a dual-clutch transmission ( 14 ) is drivable. Verfahren nach einem der Ansprüche 1 bis 3, wobei im Kraftfluss zwischen der Verbrennungskraftmaschine (8) und der mindestens einen zweiten Elektromaschine (9) eine Kupplung (11), insbesondere eine Doppelkupplung, angeordnet ist.Method according to one of claims 1 to 3, wherein in the power flow between the internal combustion engine ( 8th ) and the at least one second electric machine ( 9 ) a coupling ( 11 ), in particular a double clutch, is arranged. Verfahren nach einem der Ansprüche 1 bis 4, wobei die eine Achse des Hybridfahrzeugs (1) dessen Vorderachse (2) und die andere Achse des Hybridfahrzeugs (1) dessen Hinterachse (4) ist.Method according to one of claims 1 to 4, wherein the one axis of the hybrid vehicle ( 1 ) whose front axle ( 2 ) and the other axis of the hybrid vehicle ( 1 ) whose rear axle ( 4 ). Verfahren nach einem der Ansprüche 1 bis 4, wobei die eine Achse des Hybridfahrzeugs (2) dessen Hinterachse (4) und die andere Achse des Hybridfahrzeugs (1) dessen Vorderachse (2) ist.Method according to one of claims 1 to 4, wherein the one axis of the hybrid vehicle ( 2 ) whose rear axle ( 4 ) and the other axis of the hybrid vehicle ( 1 ) whose front axle ( 2 ).
DE102011000609A 2011-02-10 2011-02-10 Method for operating hybrid vehicle i.e. hybrid motor car, involves transmitting constant torque by gear box input clutch, and providing rotational torque by electric machine to drive hybrid motor car Withdrawn DE102011000609A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102011000609A DE102011000609A1 (en) 2011-02-10 2011-02-10 Method for operating hybrid vehicle i.e. hybrid motor car, involves transmitting constant torque by gear box input clutch, and providing rotational torque by electric machine to drive hybrid motor car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011000609A DE102011000609A1 (en) 2011-02-10 2011-02-10 Method for operating hybrid vehicle i.e. hybrid motor car, involves transmitting constant torque by gear box input clutch, and providing rotational torque by electric machine to drive hybrid motor car

Publications (1)

Publication Number Publication Date
DE102011000609A1 true DE102011000609A1 (en) 2012-08-16

Family

ID=46579395

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102011000609A Withdrawn DE102011000609A1 (en) 2011-02-10 2011-02-10 Method for operating hybrid vehicle i.e. hybrid motor car, involves transmitting constant torque by gear box input clutch, and providing rotational torque by electric machine to drive hybrid motor car

Country Status (1)

Country Link
DE (1) DE102011000609A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013103305A1 (en) 2013-04-03 2014-10-09 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Hybrid vehicle with combustion engine and electric machine
DE102013103306A1 (en) 2013-04-03 2014-10-09 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Method for operating a hybrid vehicle
US9809106B2 (en) 2013-04-03 2017-11-07 Dr. Ing. H.C.F. Porsche Aktiengesellschaft Hybrid vehicle with internal combustion engine and electric machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007001895A1 (en) 2007-01-12 2008-07-24 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Hybrid drive for motor vehicle, has coupling arranged between engine and motor, and gear has starting element by which it is switched in slip state into which it transfers reduced or no torque from gear input side to gear output side

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007001895A1 (en) 2007-01-12 2008-07-24 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Hybrid drive for motor vehicle, has coupling arranged between engine and motor, and gear has starting element by which it is switched in slip state into which it transfers reduced or no torque from gear input side to gear output side

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013103305A1 (en) 2013-04-03 2014-10-09 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Hybrid vehicle with combustion engine and electric machine
DE102013103306A1 (en) 2013-04-03 2014-10-09 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Method for operating a hybrid vehicle
US9376005B2 (en) 2013-04-03 2016-06-28 Dr. Ing. H.C.F. Porsche Aktiengesellschaft Method for operating a hybrid vehicle
US9809106B2 (en) 2013-04-03 2017-11-07 Dr. Ing. H.C.F. Porsche Aktiengesellschaft Hybrid vehicle with internal combustion engine and electric machine

Similar Documents

Publication Publication Date Title
DE102009002176B4 (en) Method and device for operating a hybrid vehicle
DE102010004711B4 (en) Hybrid powertrain and method for driving the same
EP2539170B1 (en) Drive train of a motor vehicle
DE102013105731A1 (en) POWER TRANSMISSION DEVICE FOR A VEHICLE
DE102005035824A1 (en) Hybrid drive for a motor vehicle
DE102013002586A1 (en) Hybrid drive device for motor car, has clutch that is set to interconnect the shaft sections of intermediate shaft which is provided to connect input shaft with sun gears of planetary gears
DE102013002587A1 (en) Hybrid drive device i.e. hybrid gear box, for motor car, has shaft portion forming bar of planetary gear, and driven shaft whose shaft portions are connected with one another by clutch
DE102011056431A1 (en) Hybrid powertrain for e.g. motor car, has electromotor that is designed as belt starter generator and is connected with combustion engine through belt drive unit which is designed as continuously variable transmission
DE102007036098B4 (en) Powertrain of a hybrid motor vehicle
DE102009000725A1 (en) Dual-clutch power shift transmission for use in e.g. passenger car, has input shaft detachably connected to output shaft of engine, and electrical machine arranged behind starting clutch in power flow direction during traction mode
DE102009058133A1 (en) Hybrid vehicle, has auxiliary electrical machine implemented as starting device for starting internal-combustion engine, where starting device is designed as belt starter generator or twelve volt-starter
DE102007004464A1 (en) Hybrid drive arrangement for vehicle, has two electric machines which are used as motor and as generator and electric machine is connected with gear and gearbox has variable transmission is arranged in force flow manner behind planetary
DE102007004458A1 (en) Hybrid drive arrangement for vehicle with drive section, has combustion engine and two electrical machines, which are operated as motor and generator, and brake is provided for producing supporting moment
DE102015202456A1 (en) Hybrid drive arrangement for a motor vehicle
DE102011000609A1 (en) Method for operating hybrid vehicle i.e. hybrid motor car, involves transmitting constant torque by gear box input clutch, and providing rotational torque by electric machine to drive hybrid motor car
WO2015051860A2 (en) Drive train of a hybrid motor vehicle
DE102008040495A1 (en) Rotor carrier of an electric machine of a hybrid drive train of a motor vehicle
DE102013222724A1 (en) Drive train for a vehicle and vehicle with the drive train
DE102013222721A1 (en) Drive train for a vehicle and vehicle with the drive train
DE102019220191A1 (en) Method for starting an internal combustion engine in a drive train with a hybridized dual clutch transmission
DE102011085953A1 (en) Electrical auxiliary drive for motor vehicle, has rear-axle differential with differential housing, which is drivingly connected with longitudinal shaft of motor vehicle
DE102008044035A1 (en) All wheel hybrid drive train for motor vehicle, has combustion engine, gear and electrical machine, where electrical machine is connected in power flow direction toward gear
DE102008000132A1 (en) Vehicle drive train has two vehicle axles, internal combustion engine, transmission device for executing different drive transmission ratios and electric machine assigned to internal combustion engines
DE102012017545A1 (en) Drive strand for commercial motor vehicle e.g. omnibus, has freewheel that is arranged between electric machine arranged according to starting element, and crankshaft of primary power supply unit to transmit power to crankshaft
DE102007004462A1 (en) Hybrid drive arrangement for vehicle, has electric machines and one machine is operated as motor and as generator and another electric machine is provided, which is directly connected with drive train on drive side

Legal Events

Date Code Title Description
R163 Identified publications notified
R163 Identified publications notified

Effective date: 20140228

R005 Application deemed withdrawn due to failure to request examination