DE102007002735A1 - Hybrid drive operating method for motor vehicle, involves accomplishing delay of vehicle, and accomplishing acceleration of vehicle by extending performance of internal combustion engine by electromotoric performance of electrical machine - Google Patents
Hybrid drive operating method for motor vehicle, involves accomplishing delay of vehicle, and accomplishing acceleration of vehicle by extending performance of internal combustion engine by electromotoric performance of electrical machine Download PDFInfo
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- DE102007002735A1 DE102007002735A1 DE102007002735A DE102007002735A DE102007002735A1 DE 102007002735 A1 DE102007002735 A1 DE 102007002735A1 DE 102007002735 A DE102007002735 A DE 102007002735A DE 102007002735 A DE102007002735 A DE 102007002735A DE 102007002735 A1 DE102007002735 A1 DE 102007002735A1
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- Germany
- Prior art keywords
- vehicle
- combustion engine
- internal combustion
- acceleration
- performance
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Classifications
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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
- 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
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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
- 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
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18109—Braking
- B60W30/18127—Regenerative braking
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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
- B60W2720/00—Output or target parameters relating to overall vehicle dynamics
- B60W2720/10—Longitudinal speed
- B60W2720/106—Longitudinal acceleration
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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
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Betreiben eines Hybridantriebs eines Fahrzeugs, insbesondere Kraftfahrzeugs, mit mindestens einer elektrischen Maschine und einer Brennkraftmaschine.The The invention relates to a method for operating a hybrid drive a vehicle, in particular motor vehicle, with at least one electric machine and an internal combustion engine.
Stand der TechnikState of the art
Ein derartiges Verfahren zum Betreiben eines Hybridantriebs für ein Fahrzeug ist bekannt. Ein solcher Hybridantrieb ermöglicht einen Betriebsmodus mit temporärer Leistungssteigerung, bei dem verbrennungsmotorische Leistung der Brennkraftmaschine durch elektromotorische Leistung der elektrischen Maschine ergänzt wird (Boostbetrieb). Ein solcher Betriebsmodus wird insbesondere bei Hybridantriebskonzepten verwendet, bei denen die Brennkraftmaschine gegenüber einem konventionellen Antrieb kleiner dimensioniert ist und die verbrennungsmotorische Leistung entsprechend geringer ist (Downsizing Concept). Die verbrennungsmotorische Leistung wird dabei genutzt, um eine Grundlast zu tragen, während die zusätzliche elektromotorische Leistung hauptsächlich genutzt wird, um die Dynamik des Hybridantriebs zum Beispiel bei Beschleunigungsvorgängen zu verbessern. Ein solcher Betriebsmodus ist dazu ausgelegt, eine mittelfristige Leistungssteigerung über einen typischen Zeitraum für Beschleunigungs- und/oder Überholvorgänge aufrecht zu erhalten. Derartige Beschleunigungs- und Überholvorgänge erstrecken sich im Regelfall über einen Zeitraum von mehreren Sekunden.One Such method for operating a hybrid drive for a vehicle is known. Such a hybrid drive allows an operating mode with temporary Performance increase, with the engine power of the Internal combustion engine by electric motor power of the electric Machine added becomes (boost operation). Such an operating mode becomes particular used in hybrid propulsion concepts where the internal combustion engine across from a conventional drive is dimensioned smaller and the Combustion engine power is correspondingly lower (downsizing Concept). The combustion engine power is used, to carry a base load while the extra electromotive power is mainly used to the Dynamics of the hybrid drive, for example, during acceleration operations too improve. Such an operating mode is designed to provide medium-term performance enhancement over one typical period for Acceleration and / or overtaking upright to obtain. As a rule, such acceleration and overtaking processes extend over one Period of several seconds.
Eine der Hauptanforderungen an Fahrzeuge wird häufig mit dem Begriff „Fahrspaß" umschrieben. Dieser hängt unter anderem von dem Beschleunigungsvermögen eines Fahrzeugs ab. Dabei sind es gerade die subjektiven Eindrücke eines Fahrers des Fahrzeugs, die seine Beurteilung des Fahrzeugs bezüglich des „Fahrspaßes" ausmacht. Die mittelfristige aber moderate Leistungssteigerung des Boostbetriebs für entsprechende Fahrsituationen ist zwar sinnvoll, trägt jedoch nicht dazu bei, dem Fahrer ein Gefühl zu vermitteln, dass er mit „Fahrspaß" verbindet.A The main requirements for vehicles are often described by the term "driving pleasure" hangs down other from the acceleration capability of a vehicle. there it is precisely the subjective impressions of a driver of the vehicle, which constitutes his assessment of the vehicle in terms of "driving pleasure." The medium-term but moderate Performance increase of boost mode for corresponding driving situations is useful, carries However, this does not help to give the driver a feeling that he associates with "driving fun".
Offenbarung der ErfindungDisclosure of the invention
Das erfindungsgemäße Verfahren zum Betreiben eines Hybridantriebs eines Fahrzeugs zeichnet sich dadurch aus, dass für ein gesteigertes Beschleunigungsempfinden bei einer Beschleunigungsanforderung, die einen Vorgabewert überschreitet, zunächst eine Verzögerung des Fahrzeugs durchgeführt und/oder zunächst eine Wartezeit abgewartet wird, und dann die Beschleunigung, insbesondere durch Ergänzung verbrennungsmotorischer Leistung der Brennkraftmaschine durch elektromotorische Leistung der elektrischen Maschine, durchgeführt wird. Um einer Beschleunigungsanforderung oberhalb des Vorgabewertes kurzfristig eine besonders hohe Beschleunigung folgen zu lassen, wird auf eine unmittelbar einsetzende Leistung beziehungsweise ein unmittelbar einsetzendes Moment des Hybridantriebs verzichtet. Erst wenn der Hybridantrieb kurzfristig eine maximale Beschleunigung ermöglichen kann, wird ein entsprechendes Moment von der elektrischen Maschine und/oder der Brennkraftmaschine angefordert. Da die Brennkraftmaschine ein Luftsystem mit einer Saugrohrdynamik aufweist, die deutlich langsamer ist als die Dynamik der elektrischen Maschine, wird eine entsprechende Wartezeit abgewartet, bevor die elektromotorische Leistung abgefragt wird. Durch das Abwarten ergibt sich eine Verzögerung im Ansprechverhalten, die dem Fahrer von Fahrzeugen mit einer Brennkraftmaschine als alleinigem Antriebsmotor bekannt ist. Der Vorgabewert der Beschleunigungsanforderung ergibt sich Vorteilhafterweise aus einer Fahrpedalstellung oder einem Fahrpedalgradienten. Alternativ oder zusätzlich wird das Fahrzeug in der Wartezeit zunächst leicht verzögert, um anschließend, wenn die maximale Leistung des Hybridantriebs abgreifbar ist, aus der Verzögerung heraus beschleunigt zu werden. Durch den Wechsel von Verzögerung zur Beschleunigung erhält der Fahrer (und alle weiteren Insassen des Fahrzeugs) einen Eindruck größerer Beschleunigung.The inventive method for operating a hybrid drive of a vehicle is characterized characterized by that for an increased sense of acceleration in an acceleration request, which exceeds a default value, first a delay carried out of the vehicle and / or first waiting for a wait, and then the acceleration, in particular by complement internal combustion engine power of the internal combustion engine by electromotive power the electric machine is performed. To an acceleration request above the default value short term a particularly high acceleration Follow up is an immediate performance or an immediate onset of the hybrid drive waived. Only when the hybrid drive in the short term, a maximum Allow acceleration, is a corresponding moment of the electric machine and / or the internal combustion engine requested. As the internal combustion engine a Air system with a Saugrohrdynamik has, the much slower is considered the dynamics of the electric machine, will be an appropriate one Waiting time waited before the electromotive power is queried. Waiting gives a delay in response, the sole driver of vehicles with an internal combustion engine Drive motor is known. The default value of the acceleration request advantageously results from an accelerator pedal position or an accelerator pedal gradient. Alternatively or additionally, the vehicle is in the wait first slightly delayed, afterwards, if the maximum power of the hybrid drive can be tapped off the delay to be sped out. By changing from delay to Acceleration receives the Driver (and all other occupants of the vehicle) an impression greater acceleration.
Weiterhin ist mit Vorteil vorgesehen, dass die Wartezeit einer Totzeit eines Ansprechverhaltens der Brennkraftmaschine nach der Beschleunigungsanforderung entspricht. Dabei kann das Ansprechverhalten der Brennkraftmaschine als eine Totzeit (des Luftsystems) mit anschließendem PT1-Verzögerungsglied dargestellt werden. Wird die Totzeit abgewartet, so folgt eine plötzlich einsetzende Beschleunigung durch die Addition der Momente der elektrischen Maschine und der Brennkraftmaschine.Farther is provided with advantage that the waiting time of a dead time of Response of the internal combustion engine after the acceleration request equivalent. In this case, the response of the internal combustion engine as a dead time (of the air system) followed by a PT1 delay element being represented. If the dead time is awaited, a sudden onset follows Acceleration by the addition of the moments of the electric machine and the internal combustion engine.
Nach einer Weiterbildung der Erfindung ist vorgesehen, dass die Verzögerung durch einen generatorischen Betrieb der elektrischen Maschine bewirkt wird. Nach der Beschleunigungsanforderung folgt insbesondere eine kaum merkbare Verzögerung, die durch den generatorischen Betrieb der elektrischen Maschine bewirkt wird. Vorzugsweise wenn die Totzeit der Brennkraftmaschine verstrichen ist, wird die elektrische Maschine vom generatorischen Betrieb in den Antriebsbetrieb umgeschaltet, so dass aus der Verzögerung (negativen Beschleunigung) die plötzlich einsetzende positive Beschleunigung als besonders heftig empfunden wird. Diese Beschleunigung wird daher als plötzlicher Stoß wahrgenommen, der den Hybridantrieb besonders heftig und dynamisch wirken lässt. Zusätzlich kann insbesondere ein Schleppmoment des Verbrennungsmotors zur Verzögerung beitragen.To a development of the invention, it is provided that the delay by causes a generator operation of the electric machine becomes. After the acceleration request follows in particular one barely noticeable delay, by the generator operation of the electric machine is effected. Preferably, when the dead time of the internal combustion engine has elapsed, the electric machine is from the generator operation switched to the drive mode, so that from the delay (negative Acceleration) the sudden beginning positive acceleration felt particularly violent becomes. This acceleration is therefore perceived as a sudden shock that the hybrid drive can be particularly violent and dynamic. In addition, can in particular, a drag torque of the internal combustion engine contribute to the deceleration.
Alternativ oder zusätzlich ist mit Vorteil vorgesehen, dass die Verzögerung durch Abbremsen des Fahrzeugs mittels seiner Bremsanlage bewirkt wird. Die Verzögerung nach der Beschleunigungsanforderung ist dabei jedoch so kurz, dass das Fahrzeug nicht nennenswert an Geschwindigkeit verliert. Ein derartiges Verzögern mittels Bremsanlage ist somit ohne Beeinträchtigung oder Behinderung des nachfolgenden Verkehrs möglich, so dass das Verzögern nicht als Bremsen kenntlich gemacht werden muss. Zusätzlich kann insbesondere ein Schleppmoment des Verbrennungsmotors zur Verzögerung beitragen.Alternatively or additionally is advantageous seen that the deceleration is caused by deceleration of the vehicle by means of its brake system. However, the delay after the acceleration request is so short that the vehicle does not appreciably lose speed. Such deceleration by brake system is thus possible without affecting or hindering the subsequent traffic, so that the deceleration does not have to be marked as brakes. In addition, in particular, a drag torque of the internal combustion engine can contribute to the deceleration.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Ausführungsform(en) der ErfindungEmbodiment (s) the invention
Die
In
Das
erfindungsgemäße Verfahren
sorgt dafür,
dass ein gegebener Hybridantrieb
Neben der Realisierung des erfindungsgemäßen Verfahrens für einen Parallelhybrid ist das erfindungsgemäße Verfahren auch bei einem seriellen Hybridantrieb und einem leistungsverzweigenden Hybridantrieb anwendbar.Next the realization of the inventive method for a Parallel hybrid is the inventive method also in a serial hybrid drive and a power-split hybrid drive applicable.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102007002735A DE102007002735A1 (en) | 2007-01-18 | 2007-01-18 | Hybrid drive operating method for motor vehicle, involves accomplishing delay of vehicle, and accomplishing acceleration of vehicle by extending performance of internal combustion engine by electromotoric performance of electrical machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102007002735A DE102007002735A1 (en) | 2007-01-18 | 2007-01-18 | Hybrid drive operating method for motor vehicle, involves accomplishing delay of vehicle, and accomplishing acceleration of vehicle by extending performance of internal combustion engine by electromotoric performance of electrical machine |
Publications (1)
Publication Number | Publication Date |
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DE102007002735A1 true DE102007002735A1 (en) | 2008-07-24 |
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DE102007002735A Withdrawn DE102007002735A1 (en) | 2007-01-18 | 2007-01-18 | Hybrid drive operating method for motor vehicle, involves accomplishing delay of vehicle, and accomplishing acceleration of vehicle by extending performance of internal combustion engine by electromotoric performance of electrical machine |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012018017A1 (en) | 2012-09-12 | 2014-03-13 | Volkswagen Aktiengesellschaft | Method for controlling drive for vehicle e.g. motor vehicle, involves actuating drive for generating actual moment corresponding to target moment increased based on correction valve |
-
2007
- 2007-01-18 DE DE102007002735A patent/DE102007002735A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012018017A1 (en) | 2012-09-12 | 2014-03-13 | Volkswagen Aktiengesellschaft | Method for controlling drive for vehicle e.g. motor vehicle, involves actuating drive for generating actual moment corresponding to target moment increased based on correction valve |
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