DE102012111139A1 - Method for operating a hybrid vehicle - Google Patents
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- DE102012111139A1 DE102012111139A1 DE102012111139.1A DE102012111139A DE102012111139A1 DE 102012111139 A1 DE102012111139 A1 DE 102012111139A1 DE 102012111139 A DE102012111139 A DE 102012111139A DE 102012111139 A1 DE102012111139 A1 DE 102012111139A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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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- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2045—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for optimising the use of energy
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- B60L2260/00—Operating Modes
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- B60L2260/50—Control modes by future state prediction
- B60L2260/52—Control modes by future state prediction drive range estimation, e.g. of estimation of available travel distance
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Abstract
Die Erfindung betrifft Verfahren zum Betreiben eines Hybridfahrzeugs (2), das einen Verbrennungsmotor (4) und mindestens einen Elektromotor (6) aufweist, bei dem für das Hybridfahrzeug (2) ein Boostbetrieb durchgeführt wird, bei dem das Hybridfahrzeug (2) durch den Verbrennungsmotor(4) und den mindestens einen Elektromotor (6) angetrieben wird, wobei der Boostbetrieb für eine bestimmte, von dem Hybridfahrzeug (2) zurückzulegende Strecke (14) freigegeben wird.The invention relates to a method for operating a hybrid vehicle (2) which has an internal combustion engine (4) and at least one electric motor (6), in which a boost mode is carried out for the hybrid vehicle (2), in which the hybrid vehicle (2) is powered by the internal combustion engine (4) and the at least one electric motor (6) is driven, the boost mode being enabled for a specific distance (14) to be covered by the hybrid vehicle (2).
Description
Die vorliegende Erfindung betrifft ein Verfahren und eine Anordnung zum Betreiben eines Hybridfahrzeugs. The present invention relates to a method and an arrangement for operating a hybrid vehicle.
Ein Hybridfahrzeug weist als Antriebaggregate einen Verbrennungsmotor und einen Elektromotor auf. Somit ist es möglich, das Hybridfahrzeug entweder mit dem Verbrennungsmotor oder mit dem Elektromotor anzutreiben und fortzubewegen. In einem sog. Boostbetrieb wird das Hybridfahrzeug sowohl mit dem Verbrennungsmotor als auch mit dem Elektromotor angetrieben und entsprechend beschleunigt. A hybrid vehicle has as drive units to an internal combustion engine and an electric motor. Thus, it is possible to drive and move the hybrid vehicle with either the engine or the electric motor. In a so-called boost mode, the hybrid vehicle is driven both with the internal combustion engine and with the electric motor and accelerated accordingly.
Strategien zur Durchführung eines Boostbetriebs für ein Hybridfahrzeug sind durch Zeitlimits festgelegt und werden über einen Zeitzähler abgestimmt. Falls sich der Fahrer des Hybridfahrzeugs einen elektrischen Boostbetrieb wünscht, läuft der Zeitzähler los. Wenn der Zeitzähler das Zeitlimit und somit einen Maximalwert erreicht hat, wird der Boostbetrieb abgeregelt, d. h. beendet. Strategies for performing a boost operation for a hybrid vehicle are determined by time limits and are tuned via a time counter. If the driver of the hybrid vehicle desires an electric boost operation, the time counter starts running. If the time counter has reached the time limit and thus a maximum value, the boost mode is abgeregelt, d. H. completed.
Eine Steuervorrichtung für ein Hybridfahrzeug, das mit einer Kraftmaschine sowie mit einem Elektromotor angetrieben werden kann, ist aus der Druckschrift
Die Druckschrift
Vor diesem Hintergrund werden ein Verfahren und eine Anordnung mit den Merkmalen der unabhängigen Patentansprüche vorgestellt. Weitere Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen und der Beschreibung. Against this background, a method and an arrangement with the features of the independent claims are presented. Further embodiments of the invention will become apparent from the dependent claims and the description.
Das erfindungsgemäße Verfahren ist zum Betreiben eines Hybridfahrzeugs vorgesehen, das einen Verbrennungsmotor und mindestens einen Elektromotor aufweist. Dabei wird für das Hybridfahrzeug ein Boostbetrieb durchgeführt, bei dem das Hybridfahrzeug durch den Verbrennungsmotor und den mindestens einen Elektromotor angetrieben wird. Der Boostbetrieb wird für eine bestimmte, von dem Hybridfahrzeug zurückzulegende Strecke freigegeben. The method according to the invention is intended for operating a hybrid vehicle which has an internal combustion engine and at least one electric motor. In this case, a boost operation is performed for the hybrid vehicle, in which the hybrid vehicle is driven by the internal combustion engine and the at least one electric motor. The boost mode is enabled for a particular distance traveled by the hybrid vehicle.
Folglich wird der zukünftig durchzuführende Boostbetrieb in Abhängigkeit der zukünftig zurückzulegenden, maximalen Strecke vorab eingeschränkt. As a result, the boost operation to be carried out in the future is restricted in advance as a function of the maximum distance to be covered in the future.
In Ausgestaltung wird der Boostbetrieb auf Anforderung einer das Hybridfahrzeug fahrenden Person für die bestimmte, von dem Hybridfahrzeug zurückzulegende Strecke freigegeben. In an embodiment, the boost mode is released on request of a person driving the hybrid vehicle for the specific route to be covered by the hybrid vehicle.
Die für den Boostbetrieb vorgesehene Strecke kann durch einen Energievorrat in mindestens einem Energiespeicher des Hybridfahrzeugs als möglicher Betriebsparameter des Hybridfahrzeugs festgelegt werden. Diesbezüglich ist es möglich, dass die für den Boostbetrieb vorgesehene Strecke durch einen Energievorrat in mindestens einem elektrischen Energiespeicher des Hybridfahrzeugs, üblicherweise einer Batterie oder einem Akkumulator, festgelegt wird. Alternativ oder ergänzend kann die für den Boostbetrieb vorgesehene Strecke durch einen Vorrat an Verbrennungskraftstoff in mindestens einem als Tank ausgebildeten Energiespeicher des Hybridfahrzeugs festgelegt werden. Durch diese Maßnahme ist es möglich, sämtliche Energieressourcen, die dem Hybridfahrzeug zur Verfügung stehen, bei der Festlegung der Strecke für den Boostbetrieb zu berücksichtigen. The route provided for the boost operation can be defined by an energy reserve in at least one energy store of the hybrid vehicle as a possible operating parameter of the hybrid vehicle. In this regard, it is possible for the route provided for the boost operation to be determined by an energy store in at least one electrical energy store of the hybrid vehicle, usually a battery or an accumulator. Alternatively or additionally, the route provided for the boost mode can be defined by a stock of combustion fuel in at least one energy store of the hybrid vehicle designed as a tank. By this measure, it is possible to take into account all the energy resources that are available to the hybrid vehicle in the definition of the route for the boost operation.
Außerdem ist es möglich, dass die für den Boostbetrieb vorgesehene Strecke in Abhängigkeit einer Steigung eines Wegs, auf dem sich das Hybridfahrzeug aktuell befindet, wenn die zurückzulegende Strecke festzulegen ist, festgelegt wird. Das bedeutet, dass die Steigung des Wegs ausgehend von der aktuellen Position des Hybridfahrzeugs zu bestimmen und in Abhängigkeit davon die für den Boostbetrieb vorgesehene und bei der aktuellen Position des Hybridfahrzeugs beginnende Strecke festzulegen ist. Falls eine Steigung eines von dem Kraftfahrzeug zurückzulegenden Weg, bspw. durch Auswertung von Straßendaten als topologische Parameter, vorab bekannt sein sollte, ist es ebenfalls möglich, dass die für den Boostbetrieb vorgesehene Strecke in Abhängigkeit der Steigung des Wegs, den das Hybridfahrzeug im Boostbetrieb entlang der Strecke zukünftig zurücklegen wird, im Vorfeld geplant und somit festgelegt wird. In addition, it is possible for the route provided for the boost mode to be determined in dependence on a gradient of a route on which the hybrid vehicle is currently located when the route to be covered is to be defined. This means that the slope of the route is to be determined starting from the current position of the hybrid vehicle and, depending on this, to determine the route intended for the boost mode and beginning at the current position of the hybrid vehicle. If a gradient of a path to be covered by the motor vehicle, for example by evaluation of road data as topological parameters, should be known beforehand, it is also possible for the route provided for the boost operation to depend on the gradient of the path along which the hybrid vehicle is traveling the route will be covered in future, planned in advance and thus determined.
In der Regel wird die Strecke für einen einmaligen, ununterbrochenen Boostbetrieb festgelegt. Somit wird die Strecke, üblicherweise in Abhängigkeit von Betriebsparametern des Hybridfahrzeugs, vorab festgelegt. Bei Durchführung des Boostbetriebs muss die festgelegte Strecke nicht zwangsläufig ausgenutzt werden. Somit kann der im Rahmen des Verfahrens geplante, streckenabhängige Boostbetrieb bereits beendet werden, obwohl die festgelegte Strecke noch nicht vollständig zurückgelegt ist. Für einen danach durchzuführenden Boostbetrieb kann erneut eine Strecke festgelegt und der Boostbetrieb entsprechend limitiert werden. As a rule, the route is set for a one-time, uninterrupted boost operation. Thus, the distance, usually in dependence on operating parameters of the hybrid vehicle, set in advance. When the boost mode is performed, the set route does not necessarily have to be used. Thus, the route-dependent boost mode planned in the context of the method can already be ended although the set route has not yet been completed. For a boost operation to be performed thereafter, it can again set a distance and limit the boost mode accordingly.
In weiterer Ausgestaltung kann die für den Boostbetrieb vorgesehene Strecke in Abhängigkeit eines Luft- und/oder Rollwiderstands als topologischen Parametern und/oder Betriebsparametern auf einem Weg, auf dem sich das Hybridfahrzeug aktuell befindet, wenn die zurückzulegende Strecke festzulegen ist, festgelegt werden. Alternativ oder ergänzend kann die für den Boostbetrieb vorgesehene Strecke in Abhängigkeit eines Luft- und/oder Rollwiderstands auf einem Weg, den das Hybridfahrzeug im Boostbetrieb zurücklegen wird, im Vorfeld festgelegt werden. Dies ist möglich, wenn Straßendaten sowie meteorologische Parameter bzw. Wetterdaten vorab bekannt sind. In a further refinement, the route provided for the boost mode can be defined as topological parameters and / or operating parameters as a function of an air and / or rolling resistance on a path on which the hybrid vehicle is currently located when the route to be covered is to be defined. As an alternative or in addition, the route provided for the boost mode may be determined in advance in dependence on an air and / or rolling resistance on a path which the hybrid vehicle will travel in boost mode. This is possible if road data as well as meteorological parameters or weather data are known in advance.
Die erfindungsgemäße Anordnung ist zum Betreiben eines Hybridfahrzeugs, das einen Verbrennungsmotor und mindestens einen Elektromotor aufweist, ausgebildet. Die erfindungsgemäße Anordnung weist ein Steuergerät auf, das dazu ausgebildet ist, zu veranlassen, für das Hybridfahrzeug einen Boostbetrieb durchzuführen, bei dem das Hybridfahrzeug durch den Verbrennungsmotor und den mindestens einen Elektromotor anzutreiben ist. Außerdem ist das Steuergerät dazu ausgebildet, den Boostbetrieb maximal für eine bestimmte, von dem Hybridfahrzeug zurückzulegende Strecke freizugeben. The arrangement according to the invention is designed to operate a hybrid vehicle which has an internal combustion engine and at least one electric motor. The arrangement according to the invention has a control unit which is designed to cause the hybrid vehicle to perform a boost operation, in which the hybrid vehicle is to be driven by the internal combustion engine and the at least one electric motor. In addition, the control unit is designed to release the boost mode for a maximum of a distance traveled by the hybrid vehicle.
In Ausgestaltung weist die Anordnung als Komponente das Steuergerät auf und ist dazu ausgebildet, mindestens einen Schritt, in der Regel sämtliche Schritte, des erfindungsgemäßen Verfahrens durchzuführen. In an embodiment, the arrangement as a component of the control unit and is adapted to perform at least one step, usually all the steps of the method according to the invention.
Als mögliche weitere Komponente kann die Anordnung ein Navigationsgerät und/oder ein als Wetterstation ausgebildetes Gerät aufweisen oder zumindest mit einem derartigen Navigationsgerät und/oder Gerät, das als Wetterstation ausgebildet ist, zusammenwirken. Mit dem Navigationsgerät ist es möglich, topologische Parameter über den zukünftig zurückzulegenden Weg zu erfassen. Mit dem als Wetterstation ausgebildeten Gerät können meteorologische Parameter entlang des Wegs erfasst werden. Derartige topologische und/oder meteorologische Parameter können in einer Ausgestaltung des Verfahrens bei der Planung und somit Festlegung der im Boostbetrieb zurückzulegenden Strecke neben Betriebsparametern des Hybridfahrzeugs berücksichtigt werden. Es ist möglich, die topologischen und/oder meteorologischen Parameter von hierfür vorgesehenen Einrichtungen, die diese Parameter aktuell bereitstellen, per Funk zu empfangen. As a possible further component, the arrangement may comprise a navigation device and / or a device designed as a weather station or interact at least with such a navigation device and / or device which is designed as a weather station. With the navigation device, it is possible to capture topological parameters on the way to be covered in the future. With the device designed as a weather station meteorological parameters can be recorded along the way. Such topological and / or meteorological parameters can be taken into account in one embodiment of the method in the planning and thus determination of the distance to be traveled in boost mode in addition to operating parameters of the hybrid vehicle. It is possible to radio-receive the topological and / or meteorological parameters of dedicated facilities currently providing these parameters.
Die Boostbetrieb kann üblicherweise bei niedrigen Geschwindigkeiten des Hybridfahrzeugs durchgeführt werden, da dann ein beschleunigender Effekt des Elektromotors, der elektrische Energie in mechanische Energie umwandelt, stärker als bei hohen Geschwindigkeiten ist. The boosting operation can usually be performed at low speeds of the hybrid vehicle, because then an accelerating effect of the electric motor converting electrical energy into mechanical energy is stronger than at high speeds.
Mit nachfolgender Formel kann der Boostbetrieb in Abhängigkeit von unterschiedlichen Parametern beschrieben werden:
- a_Boost
- die Beschleunigung durch den Boostbetrieb,
- P
- die Leistung von zumindest einem Rad des Hybridfahrzeugs,
- v
- die Geschwindigkeit des Hybridfahrzeugs,
- Fl
- der Luftwiderstand,
- Fr
- der Rollwiderstand,
- Fst
- der Steigungswiderstand,
- lambda
- der Drehmassenzuschlagsfaktor zur Beschleunigung der rotierenden Massen und/oder fortzubewegenden Massen und
- m
- die Masse des Hybridfahrzeugs.
- a_Boost
- the acceleration due to the boost operation,
- P
- the power of at least one wheel of the hybrid vehicle,
- v
- the speed of the hybrid vehicle,
- Fl
- the air resistance,
- Fri.
- the rolling resistance,
- Fst
- the gradient resistance,
- lambda
- the rotational slip rate factor for accelerating the rotating masses and / or masses to be moved and
- m
- the mass of the hybrid vehicle.
Im Rahmen einer Umsetzung des Verfahrens wird der Boostbetrieb strecken- und/oder wegabhängig durchgeführt. Wenn die das Hybridfahrzeug fahrende Person einen Boostbetrieb anfordert, wird eine bestimmte Strecke und/oder ein bestimmter Weg für den Boostbetrieb freigegeben. Dadurch kann der Boostbetrieb bei geringen Geschwindigkeiten für eine vergleichweise lange Zeit geplant durchgeführt werden. Bei hohen Geschwindigkeiten ist der streckenabhängige Boostbetrieb dagegen schneller vorbei, da pro Zeitintervall eine größere Strecke und somit ein längerer Weg zurückgelegt wird. As part of an implementation of the method, the boost operation is carried out track and / or path-dependent. When the person driving the hybrid vehicle requests a boost operation, a certain distance and / or a certain way for the boost operation is released. As a result, the boost operation can be carried out at low speeds for a comparatively long time planned. At high speeds, however, the distance-dependent boost mode is faster over, because per time interval, a larger distance and thus a longer distance is covered.
Ergänzend kann die momentane Steigung sowie die in der Batterie verfügbare Energie mit in eine Berechnung zum Bestimmen und/oder Festlegen der Strecke einbezogen werden. Wie die voranstehende Formel zeigt, ist bei Vorliegen eines Gefälles, wenn bergab gefahren werden kann, im Boostbetrieb tendenziell eine höhere Beschleunigung als bei Vorliegen einer Steigung, bei der bergauf zu fahren ist, erreichbar. Daher kann die für den Boostbetrieb freizugebende Strecke um einen Steigungsfaktor als topologischem Parameter erweitert werden. Ähnliches gilt in der Regel auch für den Luft- und Rollwiderstand des Hybridfahrzeugs. Diese Parameter sind jedoch nicht zwingend von der zu fahrenden Strecke abhängig. In addition, the current slope and the energy available in the battery can be included in a calculation for determining and / or setting the distance. As the above formula shows, when there is a downhill gradient when driving downhill, a higher acceleration tends to be achievable in boost mode than when there is an uphill slope. Therefore, the distance to be released for the boost mode can be extended by a slope factor as a topological parameter. The same generally applies to the air and rolling resistance of the hybrid vehicle. However, these parameters are not necessarily dependent on the route to be traveled.
Durch die Bewertung der verfügbaren elektrischen und/oder im Verbrennungskraftstoff gebundenen chemischen Energie kann die für den Boostbetrieb freizugebende Strecke zusätzlich beeinflusst werden. Wenn bspw. in der Batterie viel elektrische Energie gespeichert ist, kann im Boostbetrieb eine größere Strecke zurückgelegt werden. By evaluating the available electrical and / or chemical energy bound in the combustion fuel, the distance to be released for the boost operation can be additionally influenced become. If, for example, a lot of electrical energy is stored in the battery, a longer distance can be covered in boost mode.
Weitere Vorteile und Ausgestaltungen der Erfindung ergeben sich aus der Beschreibung und der beiliegenden Zeichnung. Further advantages and embodiments of the invention will become apparent from the description and the accompanying drawings.
Es versteht sich, dass die voranstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen. It is understood that the features mentioned above and those yet to be explained below can be used not only in the particular combination indicated, but also in other combinations or in isolation, without departing from the scope of the present invention.
Die Erfindung ist anhand einer Ausführungsform in der Zeichnung schematisch dargestellt und wird unter Bezugnahme auf die Zeichnung ausführlich beschrieben. The invention is diagrammatically illustrated by way of an embodiment in the drawing and will be described in detail with reference to the drawing.
Das in
Außerdem umfasst das Hybridfahrzeug
Das Hybridfahrzeug
Bei der anhand von
Als der mindestens eine Parameter kann bspw. ein Betriebsparameter des Hybridfahrzeugs
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 60219090 T2 [0004] DE 60219090 T2 [0004]
- EP 1232896 B1 [0005] EP 1232896 B1 [0005]
Claims (11)
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DE102012111139.1A DE102012111139A1 (en) | 2012-11-20 | 2012-11-20 | Method for operating a hybrid vehicle |
GB1320078.7A GB2510939B8 (en) | 2012-11-20 | 2013-11-14 | Method for operating a hybrid vehicle |
JP2013237835A JP5824498B2 (en) | 2012-11-20 | 2013-11-18 | How to operate a hybrid vehicle |
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DE102012111139.1A DE102012111139A1 (en) | 2012-11-20 | 2012-11-20 | Method for operating a hybrid vehicle |
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SE540980C2 (en) | 2017-06-07 | 2019-02-12 | Scania Cv Ab | Method and system for propelling a vehicle |
JP7269772B2 (en) | 2019-03-28 | 2023-05-09 | カワサキモータース株式会社 | vehicle |
US20240208338A1 (en) * | 2022-12-21 | 2024-06-27 | Brp-Rotax Gmbh & Co. Kg | Boost system for an electric vehicle, electric vehicle having same, and method for boosting a speed of an electric vehicle |
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DE60219090T2 (en) | 2001-02-20 | 2008-01-31 | Honda Giken Kogyo K.K. | Control method for disconnecting and connecting individual cylinders of a hybrid vehicle, with regenerative braking |
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JP5824498B2 (en) | 2015-11-25 |
GB2510939B8 (en) | 2016-01-13 |
JP2014101111A (en) | 2014-06-05 |
GB2510939A8 (en) | 2016-01-13 |
GB2510939A (en) | 2014-08-20 |
GB2510939B (en) | 2015-12-16 |
GB201320078D0 (en) | 2013-12-25 |
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