DE102007047821A1 - Method for optimizing energy recovery in a hybrid vehicle - Google Patents
Method for optimizing energy recovery in a hybrid vehicle Download PDFInfo
- Publication number
- DE102007047821A1 DE102007047821A1 DE102007047821A DE102007047821A DE102007047821A1 DE 102007047821 A1 DE102007047821 A1 DE 102007047821A1 DE 102007047821 A DE102007047821 A DE 102007047821A DE 102007047821 A DE102007047821 A DE 102007047821A DE 102007047821 A1 DE102007047821 A1 DE 102007047821A1
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- Germany
- Prior art keywords
- vehicle
- energy
- recovery
- electric machine
- energy storage
- 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.)
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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
- 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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
- B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
-
- 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
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/11—Controlling the power contribution of each of the prime movers to meet required power demand using model predictive control [MPC] strategies, i.e. control methods based on models predicting performance
-
- 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
-
- 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
-
- 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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
- B60W2510/244—Charge state
-
- 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
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
-
- 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
- B60W2530/00—Input parameters relating to vehicle conditions or values, not covered by groups B60W2510/00 or B60W2520/00
- B60W2530/10—Weight
Abstract
Es wird ein Verfahren zur Optimierung der Energierückgewinnung bei einem Hybridfahrzeug vorgeschlagen, im Rahmen dessen während des Betriebs des Fahrzeugs für die kinetische Energie des Fahrzeugs im an die Elektromaschine des Fahrzeugs angeschlossenen Energiespeicher des Fahrzeugs Speicherplatz freigehalten wird, um eine Rückgewinnung der kinetischen Energie zu ermöglichen.A method for optimizing energy recovery in a hybrid vehicle is proposed in which memory is kept free during operation of the vehicle for the kinetic energy of the vehicle in the energy storage device of the vehicle connected to the electric machine of the vehicle, in order to enable a recovery of the kinetic energy.
Description
Die vorliegende Erfindung bezieht sich auf ein Verfahren zur Optimierung der Energierückgewinnung bei einem Hybridfahrzeug, insbesondere bei einem parallelen Hybridfahrzeug, umfassend einen Verbrennungsmotor, zumindest eine Elektromaschine und einen an die Elektromaschine angeschlossenen Energiespeicher gemäß dem Oberbegriff des Patentanspruchs 1.The The present invention relates to a method of optimization the energy recovery in a hybrid vehicle, in particular in a parallel hybrid vehicle comprising an internal combustion engine, at least one electric machine and one to the electric machine connected energy storage according to the preamble of claim 1
Aus dem Stand der Technik sind Hybridfahrzeuge umfassend ein Hybridgetriebe bekannt. Sie umfassen zusätzlich zu dem Verbrennungsmotor zumindest einen Elektromotor bzw. eine elektrische Maschine. Bei seriellen Hybridfahrzeugen wird ein Generator vom Verbrennungsmotor angetrieben, wobei der Generator den die Räder antreibenden Elektromotor mit elektrischer Energie versorgt. Des weiteren sind parallele Hybridfahrzeuge bekannt, bei denen eine Addition der Drehmomente des Verbrennungsmotors und zumindest einer mit dem Verbrennungsmotor verbindbaren elektrischen Maschine erfolgt. Hierbei sind die elektrischen Maschinen mit dem Riementrieb oder mit der Kurbelwelle des Verbrennungsmotors verbindbar. Die vom Verbrennungsmotor und/oder der zumindest einen elektrischen Maschine erzeugten Drehmomente werden über ein nachgeschaltetes Getriebe an die angetriebene Achse übertragen.Out In the prior art are hybrid vehicles comprising a hybrid transmission known. They include in addition to the internal combustion engine at least one electric motor or an electric machine. at Serial hybrid vehicles become a generator of the internal combustion engine driven, wherein the generator driving the wheels Electric motor supplied with electrical energy. Furthermore are Parallel hybrid vehicles are known in which an addition of the torques the internal combustion engine and at least one with the internal combustion engine connectable electric machine is done. Here are the electrical Machines with the belt drive or with the crankshaft of the internal combustion engine connectable. The from the internal combustion engine and / or the at least one electric machine generated torques are over transmit a downstream transmission to the driven axle.
Beispielsweise
ist im Rahmen der
Aus
der
Aus
der
Aus dem Stand der Technik ist bekannt, den an die Elektromaschine angeschlossenen Energiespeicher eines Hybridfahrzeugs durch Nutzung der kinetischen Energie des Fahrzeugs oder der Bremsenergie zu laden. Beispielsweise kann zu diesem Zweck die in der Schubphase des Fahrzeugs zur Verfügung stehende Bremsenergie (Rekuperationsenergie) genutzt werden und in elektrische Energie umgewandelt werden. Hierbei wird nach dem Stand der Technik die Rekuperationsenergie den Energiespeicher solange wie möglich zurückgeführt, ohne die aktuell vorhandene kinetische Energie des Fahrzeugs zu berücksichtigen.Out the prior art is known, connected to the electric machine Energy storage of a hybrid vehicle by using the kinetic To charge energy of the vehicle or braking energy. For example can be used for this purpose in the overrun phase of the vehicle standing braking energy (recuperation energy) can be used and be converted into electrical energy. This is after the State of the art the Rekuperationsenergie the energy storage as long returned as possible without the current to take account of existing kinetic energy of the vehicle.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Optimierung der Energierückgewinnung bei einem Hybridfahrzeug, umfassend einen Verbrennungsmotor, zumindest eine Elektromaschine und einen an die Elektromaschine angeschlossenen Energiespeicher anzugeben, durch dessen Durchführung die kinetische Energie des Fahrzeugs berücksichtigt und optimal genutzt wird.Of the The present invention is based on the object, a method for optimizing energy recovery in a hybrid vehicle, comprising an internal combustion engine, at least one electric machine and an energy storage connected to the electric machine by carrying out the kinetic energy of the Vehicle is considered and used optimally.
Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst. Weitere erfindungsgemäße Ausgestaltungen und Vorteile gehen aus den Unteransprüchen hervor.These The object is solved by the features of claim 1. Further embodiments and advantages of the invention are apparent from the dependent claims.
Demnach wird ein Verfahren zur Optimierung der Energierückgewinnung bei einem Hybridfahrzeug, insbesondere einem parallelen Hybridfahrzeug vorgeschlagen, im Rahmen dessen während des Betriebs des Fahrzeugs, für die kinetische Energie des Fahrzeugs im an die Elektromaschine des Fahrzeugs angeschlossenen Energiespeicher des Fahrzeugs Speicherplatz freigehalten wird, um eine Rückgewinnung der kinetischen Energie zu ermöglichen.Therefore will be a method of optimizing energy recovery in a hybrid vehicle, in particular a parallel hybrid vehicle proposed during the operation of the Vehicle, for the kinetic energy of the vehicle in the connected to the electric machine of the vehicle energy storage the vehicle storage space is kept free to recuperate to enable the kinetic energy.
Gemäß der Erfindung wird der Ladevorgang des Energiespeichers des Fahrzeugs derart gesteuert, dass der Energiespeicher des Fahrzeugs zu keiner Zeit während des Fahrbetriebs an seine obere Ladegrenze gelangt; im Idealfall ist der Energiespeicher bei Stillstand des Fahrzeugs voll geladen. Durch das erfindungsgemäße Freihalten von Energiespeicherplatz kann beispielsweise beim Abbremsen des Fahrzeugs die gesamte kinetische Energie des Fahrzeugs in den Energiespeicher zurückgespeist werden.According to the invention, the charging process of the energy storage of the vehicle is controlled so that the energy storage of the vehicle to kei ner time reaches the upper limit of loading while driving; Ideally, the energy storage is fully charged at standstill of the vehicle. By keeping energy storage space free according to the invention, the entire kinetic energy of the vehicle can be fed back into the energy store, for example when the vehicle is being decelerated.
Durch die erfindungsgemäße Konzeption kann die kinetische Energie im Fahrzeug zum Zweck der Energierückgewinnung Zeit optimal genutzt werden. Des weiteren wird die Lebensdauer des Energiespeichers erhöht, da die Grenzen für die normale Funktionalität enger gemacht werden können und es seltener notwendig wird, Belastungen in kritische Bereiche durchzuführen. Ferner werden die Kosten für den Energiespeicher reduziert, da dieser durch die Optimierung der Energierückgewinnung in vorteilhafter Weise kleiner dimensioniert werden kann.By the conception according to the invention can be kinetic Energy in the vehicle for the purpose of energy recovery Time to be used optimally. Furthermore, the life of the Energy storage increases, as the limits for the normal functionality can be made tighter and it becomes less necessary, loads in critical areas perform. Furthermore, the cost of the Energy storage is reduced as this is due to the optimization of energy recovery can be dimensioned smaller in an advantageous manner.
Gemäß der Erfindung werden die Grenzen für die zur Verfügung stehenden Lade- und Entladenergien bzw. die Belastungsgrenzen des an die Elektromaschine des Fahrzeugs angeschlossenen Energiespeichers des Fahrzeugs im Energiespeicher-Modul der Steuerung bestimmt und können dynamisch verändert werden, sodass während des Fahrbetriebs des Fahrzeugs ein Speicherplatz für die Fahrzeug vorhandene kinetische Energie reserviert werden kann.According to the Invention will limit the available standing charging and discharging energies or the load limits of connected to the electric machine of the vehicle energy storage of the vehicle in the energy storage module of the controller determines and can be changed dynamically, so while driving the vehicle a storage space for the Vehicle existing kinetic energy can be reserved.
Beispielsweise können während des Fahrbetriebs des Fahrzeugs die Grenzen für die zur Verfügung stehenden Lade- und Entladenergien derart verändert werden, dass im Energiespeicher ein Energiespeicherplatz vorhanden ist, welcher der aktuellen kinetischen Energie des Fahrzeugs EKin = ½·m·v2 entspricht, wobei m die Fahrzeugmasse und v die Fahrzeuggeschwindigkeit ist.For example, during driving of the vehicle, the limits for the available charging and discharging energies can be changed such that an energy storage space is present in the energy store which corresponds to the current kinetic energy of the vehicle E Kin = ½ * m * v 2 , where m the vehicle mass and v is the vehicle speed.
Im Rahmen einer vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass unter Berücksichtigung von GPS-Daten die potentielle Energie analog zur kinetischen Energie vorausschauend berücksichtigt wird, so dass die Grenzen für die zur Verfügung stehenden Lade- und Entladenergien derart dynamisch verändert werden, dass im Energiespeicher ein Energiespeicherplatz vorhanden ist, welcher der Summe aus der aktuellen kinetischen Energie des Fahrzeugs EKin = ½·m·v2 und der aktuellen potentiellen Energie des Fahrzeugs entspricht.In the context of an advantageous development of the invention, it is provided that taking into account GPS data, the potential energy is taken into account in a forward-looking manner analogous to the kinetic energy, so that the limits for the available charging and discharging energies are changed dynamically such that in the energy storage Energy storage space is present, which corresponds to the sum of the current kinetic energy of the vehicle E Kin = ½ · m · v 2 and the current potential energy of the vehicle.
Hierbei ist die potentielle Energie des Fahrzeugs durch die Formel Epot = m·g·h gegeben, mit m: Masse, g: Erdbeschleunigung und h: Höhenunterschied, wobei der Höhenunterschied der Höhenunterschied zum Fahrziel oder zu einem definierten Punkt entlang der noch zurückzulegenden Strecke ist.Here, the potential energy of the vehicle by the formula E pot = m · g · h is given, with m: mass, g: acceleration of gravity and h: height difference, where the difference in height, the difference in height to the destination or to a defined point along the distance still to be covered is.
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES 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 The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 102006019679 A1 [0003] - DE 102006019679 A1 [0003]
- - DE 102005057607 B3 [0004] DE 102005057607 B3 [0004]
- - US 2005/0221947 A1 [0005] US 2005/0221947 A1 [0005]
Claims (5)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007047821A DE102007047821A1 (en) | 2007-11-20 | 2007-11-20 | Method for optimizing energy recovery in a hybrid vehicle |
PCT/EP2008/064236 WO2009065690A1 (en) | 2007-11-20 | 2008-10-22 | Method for optimizing energy reclamation in a hybrid vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007047821A DE102007047821A1 (en) | 2007-11-20 | 2007-11-20 | Method for optimizing energy recovery in a hybrid vehicle |
Publications (1)
Publication Number | Publication Date |
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DE102007047821A1 true DE102007047821A1 (en) | 2009-05-28 |
Family
ID=40251835
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102007047821A Withdrawn DE102007047821A1 (en) | 2007-11-20 | 2007-11-20 | Method for optimizing energy recovery in a hybrid vehicle |
Country Status (2)
Country | Link |
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DE (1) | DE102007047821A1 (en) |
WO (1) | WO2009065690A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011147614A1 (en) * | 2010-05-28 | 2011-12-01 | Zf Friedrichshafen Ag | Method for operating a drive train |
EP2719572A4 (en) * | 2011-06-07 | 2016-03-02 | Toyota Motor Co Ltd | Electric vehicle and method for controlling electric vehicle |
DE102014222073A1 (en) | 2014-10-29 | 2016-05-04 | Robert Bosch Gmbh | Method and device for operating a motor vehicle with an electrical energy store |
Citations (7)
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EP1168567A2 (en) * | 2000-06-20 | 2002-01-02 | Bae Systems Controls, Inc. | Energy management system for hybrid electric vehicles |
DE10128758A1 (en) * | 2001-06-13 | 2002-12-19 | Bosch Gmbh Robert | Control system for hybrid vehicle regulates proportion of driving power performed by electric motor whereby state of charge of battery does not fall below minimum level ensuring basic functions |
US20050221947A1 (en) | 2000-02-04 | 2005-10-06 | C.R.F. Societa Consortile Per Azioni | Method and a system for controlling the propulsion of a hybrid motor vehicle |
DE10005581B4 (en) * | 1999-02-09 | 2006-04-13 | Hitachi, Ltd. | Method for controlling a hybrid vehicle |
DE102006019679A1 (en) | 2005-04-28 | 2006-11-02 | General Motors Corp., Detroit | Pressure switch diagnostic system for electrically variable hybrid powertrain, has logic valve in fluid communication with trim valves such that pressure sensitive switches detect changes in logic valve without additional switch |
DE102005057607B3 (en) | 2005-12-02 | 2007-04-05 | Hytrac Gmbh | Hybrid drive for vehicle e.g. passenger car, has planetary wheels with planetary gear having output shaft, and brake that is released in lateral course of switching process of coupling for generation of one of drive areas |
DE102006034933A1 (en) * | 2006-07-28 | 2008-01-31 | Dr.Ing.H.C. F. Porsche Ag | Hybrid-vehicle drive controlling method, involves using control parameter sets corresponding to defined actual operational modes of vehicle for controlling charge operation of battery of motor with corresponding state of charge |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19628877A1 (en) * | 1996-07-17 | 1998-01-22 | Bayerische Motoren Werke Ag | Method for operating a vehicle with a first and a second drive energy source |
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2007
- 2007-11-20 DE DE102007047821A patent/DE102007047821A1/en not_active Withdrawn
-
2008
- 2008-10-22 WO PCT/EP2008/064236 patent/WO2009065690A1/en active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10005581B4 (en) * | 1999-02-09 | 2006-04-13 | Hitachi, Ltd. | Method for controlling a hybrid vehicle |
US20050221947A1 (en) | 2000-02-04 | 2005-10-06 | C.R.F. Societa Consortile Per Azioni | Method and a system for controlling the propulsion of a hybrid motor vehicle |
EP1168567A2 (en) * | 2000-06-20 | 2002-01-02 | Bae Systems Controls, Inc. | Energy management system for hybrid electric vehicles |
DE10128758A1 (en) * | 2001-06-13 | 2002-12-19 | Bosch Gmbh Robert | Control system for hybrid vehicle regulates proportion of driving power performed by electric motor whereby state of charge of battery does not fall below minimum level ensuring basic functions |
DE102006019679A1 (en) | 2005-04-28 | 2006-11-02 | General Motors Corp., Detroit | Pressure switch diagnostic system for electrically variable hybrid powertrain, has logic valve in fluid communication with trim valves such that pressure sensitive switches detect changes in logic valve without additional switch |
DE102005057607B3 (en) | 2005-12-02 | 2007-04-05 | Hytrac Gmbh | Hybrid drive for vehicle e.g. passenger car, has planetary wheels with planetary gear having output shaft, and brake that is released in lateral course of switching process of coupling for generation of one of drive areas |
DE102006034933A1 (en) * | 2006-07-28 | 2008-01-31 | Dr.Ing.H.C. F. Porsche Ag | Hybrid-vehicle drive controlling method, involves using control parameter sets corresponding to defined actual operational modes of vehicle for controlling charge operation of battery of motor with corresponding state of charge |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011147614A1 (en) * | 2010-05-28 | 2011-12-01 | Zf Friedrichshafen Ag | Method for operating a drive train |
EP2719572A4 (en) * | 2011-06-07 | 2016-03-02 | Toyota Motor Co Ltd | Electric vehicle and method for controlling electric vehicle |
DE102014222073A1 (en) | 2014-10-29 | 2016-05-04 | Robert Bosch Gmbh | Method and device for operating a motor vehicle with an electrical energy store |
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Publication number | Publication date |
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WO2009065690A1 (en) | 2009-05-28 |
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Effective date: 20110601 Effective date: 20110531 |