[go: up one dir, main page]

WO2009065690A1 - Method for optimizing energy reclamation in a hybrid vehicle - Google Patents

Method for optimizing energy reclamation in a hybrid vehicle Download PDF

Info

Publication number
WO2009065690A1
WO2009065690A1 PCT/EP2008/064236 EP2008064236W WO2009065690A1 WO 2009065690 A1 WO2009065690 A1 WO 2009065690A1 EP 2008064236 W EP2008064236 W EP 2008064236W WO 2009065690 A1 WO2009065690 A1 WO 2009065690A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
energy
energy storage
recovery
electric machine
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.)
Ceased
Application number
PCT/EP2008/064236
Other languages
German (de)
French (fr)
Inventor
Mesut Er
Johannes Kaltenbach
Winfried Fakler
Stefan Wallner
Notker Amann
Christian Mittelberger
Stefan Blattner
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen 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 ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of WO2009065690A1 publication Critical patent/WO2009065690A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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
    • 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
    • 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

Definitions

  • the present invention relates to a method for optimizing 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 an energy storage connected to the electric machine according to the preamble of patent claim 1.
  • hybrid vehicles comprising a hybrid transmission are known. They comprise, in addition to the internal combustion engine, at least one electric motor or one electrical machine.
  • a generator is driven by the internal combustion engine, with the generator supplying electric power to the electric motor driving the wheels.
  • parallel hybrid vehicles are known in which an addition of the torques of the internal combustion engine and at least one connectable to the internal combustion engine electric machine.
  • the electric machines can be connected to the belt drive or to the crankshaft of the internal combustion engine. The torques generated by the internal combustion engine and / or the at least one electric machine are transmitted to the driven axle via a downstream transmission.
  • a drive train with an electrically adjustable hybrid transmission and an electrohydraulic control system a plurality of electric power units and a plurality of torque-transmitting mechanisms is known.
  • the torque-transmitting mechanisms can be selectively engaged by the electro-hydraulic control system to four forward gears, a neutral state, a low and high speed electrical operation, a to provide electrically variable low and high speed operating modes and a hill hold mode.
  • a hybrid drive for vehicles at least including a main engine, in particular an internal combustion engine, a generator, an electric motor and a, a sun gear, a ring gear, a planet carrier and planetary gears having planetary gear, which includes at least one output shaft. It is provided that for a first driving range of the vehicle for adding the torques, the drive shafts of the main motor and the electric motor are coupled to the sun gear of the planetary gear and for another driving range of one of the two motors for mechanically adding the rotational speeds according to the superposition principle frictionally on the ring gear the planetary gear is coupled.
  • a drive control system for a motor vehicle with a hybrid drive in which a device is provided which provides signals indicating Bethebszurise the vehicle, the internal combustion engine and the electric machine, wherein the control of the hybrid drive a start / Stop function is performed, based on the operating condition of the vehicle, the internal combustion engine is switched off and decoupled from the drive train to be started in a next step in response to signals from the controller of the electric machine.
  • the present invention has for its object to provide a method for optimizing the 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 the implementation of the kinetic energy of the vehicle is taken into account and used optimally.
  • a method for optimizing the energy recovery in a hybrid vehicle, in particular a parallel hybrid vehicle is proposed, in the context of which, during the operation of the vehicle, for the kinetic energy of the vehicle in the vehicle connected to the electric machine of the vehicle energy storage space is kept free, to a recovery to enable the kinetic energy.
  • the charging process of the energy storage device of the vehicle is controlled in such a way that the energy storage device of the vehicle does not reach its upper charging limit at any time during the driving operation; Ideally, the energy storage is fully charged at standstill of the vehicle.
  • the entire kinetic energy of the vehicle can be fed back into the energy store, for example when the vehicle is being decelerated. Due to the concept of the invention, the kinetic energy in the vehicle for the purpose of energy recovery time can be optimally used.
  • the life of the energy storage is increased because the limits for the normal functionality can be made narrower and it becomes less necessary to carry loads in critical areas. Furthermore, the costs for the energy storage are reduced, since this can be advantageously dimensioned smaller by optimizing the energy recovery.
  • the limits for the available charging and discharging energies or the load limits of the energy storage device of the vehicle connected to the electric machine of the vehicle in the energy storage module of the controller are determined and can be changed dynamically, so that during the driving operation of the vehicle a storage space for the vehicle existing kinetic energy can be reserved.
  • Epot m * g * h, where m: mass, g: acceleration of gravity and h: height difference, where the height difference is the height difference to the destination or to a defined point along the distance still to be covered ,

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention proposes a method for optimizing energy reclamation in a hybrid vehicle, in the course of which storage space is kept free during the operation of the vehicle for the kinetic energy of the vehicle in the energy storage that is connected to the electric motor of the vehicle in order to enable reclamation of the kinetic energy.

Description

Verfahren zur Optimierung der Enerqierückqewinnunq bei einem Hybridfahrzeuq A method for optimizing energy recovery in a hybrid vehicle

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 present invention relates to a method for optimizing 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 an energy storage connected to the electric machine according to the preamble of patent 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.From the prior art hybrid vehicles comprising a hybrid transmission are known. They comprise, in addition to the internal combustion engine, at least one electric motor or one electrical machine. In hybrid serial vehicles, a generator is driven by the internal combustion engine, with the generator supplying electric power to the electric motor driving the wheels. Furthermore, parallel hybrid vehicles are known in which an addition of the torques of the internal combustion engine and at least one connectable to the internal combustion engine electric machine. In this case, the electric machines can be connected to the belt drive or to the crankshaft of the internal combustion engine. The torques generated by the internal combustion engine and / or the at least one electric machine are transmitted to the driven axle via a downstream transmission.

Beispielsweise ist im Rahmen der DE102006019679 A1 ein Antriebsstrang mit einem elektrisch verstellbaren Hybridgetriebe und einem elektrohyd- raulischen Steuersystem, mehreren elektrischen Leistungseinheiten und mehreren Drehmomentübertragungsmechanismen bekannt. Hierbei können die Drehmomentübertragungsmechanismen durch das elektrohydraulische Steuersystem selektiv eingerückt werden, um vier Vorwärtsgänge, einen neutralen Zustand, eine elektrische Betriebsart mit niedriger und hoher Drehzahl, eine elektrisch verstellbare Betriebsart mit niedriger und hoher Drehzahl und eine Berghalte-Betriebsart bereitzustellen.For example, in the context of DE102006019679 A1, a drive train with an electrically adjustable hybrid transmission and an electrohydraulic control system, a plurality of electric power units and a plurality of torque-transmitting mechanisms is known. Here, the torque-transmitting mechanisms can be selectively engaged by the electro-hydraulic control system to four forward gears, a neutral state, a low and high speed electrical operation, a to provide electrically variable low and high speed operating modes and a hill hold mode.

Aus der DE 102005057607 B3 ist ein Hybridantrieb für Fahrzeuge bekannt, zumindest beinhaltend einen Hauptmotor, insbesondere eine Brennkraftmaschine, einen Generator, einen Elektromotor und ein, ein Sonnenrad, ein Hohlrad, einen Planetenträger sowie Planetenräder aufweisendes Planetengetriebe, das mindestens eine Abtriebswelle beinhaltet. Hierbei ist vorgesehen, dass für einen ersten Fahrbereich des Fahrzeuges zur Addition der Drehmomente die Antriebswellen des Hauptmotors und des Elektromotors auf das Sonnenrad des Planetengetriebes gekoppelt sind und für einen weiteren Fahrbereich einer der beiden Motoren zur mechanischen Addition der Drehzahlen entsprechend dem Überlagerungsprinzip kraftschlüssig auf das Hohlrad des Planetengetriebes koppelbar ist.From DE 102005057607 B3 a hybrid drive for vehicles is known, at least including a main engine, in particular an internal combustion engine, a generator, an electric motor and a, a sun gear, a ring gear, a planet carrier and planetary gears having planetary gear, which includes at least one output shaft. It is provided that for a first driving range of the vehicle for adding the torques, the drive shafts of the main motor and the electric motor are coupled to the sun gear of the planetary gear and for another driving range of one of the two motors for mechanically adding the rotational speeds according to the superposition principle frictionally on the ring gear the planetary gear is coupled.

Aus der US 2005/0221947 A1 ist ein Antriebssteuersystem für ein Kraftfahrzeug mit einem Hybridantrieb bekannt, bei dem eine Einrichtung vorgesehen ist, welche Signale liefert, die Bethebszustände des Fahrzeugs, des Verbrennungsmotors und der Elektromaschine anzeigen, wobei von der Steuerung des Hybridantriebs eine Start/Stopp Funktion ausgeführt wird, bei der anhand des Betriebszustands des Fahrzeugs der Verbrennungsmotor ausgeschaltet und vom Antriebsstrang abgekoppelt wird um in einem nächsten Schritt in Abhängigkeit von Signalen der Steuerung vom der Elektromaschine gestartet zu werden.From US 2005/0221947 A1 a drive control system for a motor vehicle with a hybrid drive is known, in which a device is provided which provides signals indicating Bethebszustände the vehicle, the internal combustion engine and the electric machine, wherein the control of the hybrid drive a start / Stop function is performed, based on the operating condition of the vehicle, the internal combustion engine is switched off and decoupled from the drive train to be started in a next step in response to signals from the controller of the electric machine.

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.It is known from the prior art to charge the energy storage of a hybrid vehicle connected to the electric machine by using the kinetic energy of the vehicle or the braking energy. For example, the braking energy (recuperation energy) available in the coasting phase of the vehicle can be used for this purpose and converted into electrical energy. This is according to the state of Technology recuperation energy as long as possible attributed to the energy storage, without taking into account the currently 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.The present invention has for its object to provide a method for optimizing the 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 the implementation of the kinetic energy of the vehicle is taken into account and used optimally.

Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst. Weitere erfindungsgemäße Ausgestaltungen und Vorteile gehen aus den Unteransprüchen hervor.This object is solved by the features of patent claim 1. Further embodiments and advantages of the invention will become 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.Accordingly, a method for optimizing the energy recovery in a hybrid vehicle, in particular a parallel hybrid vehicle is proposed, in the context of which, during the operation of the vehicle, for the kinetic energy of the vehicle in the vehicle connected to the electric machine of the vehicle energy storage space is kept free, to a recovery 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. 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.According to the invention, the charging process of the energy storage device of the vehicle is controlled in such a way that the energy storage device of the vehicle does not reach its upper charging limit at any time during the driving operation; 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. Due to the concept of the invention, the kinetic energy in the vehicle for the purpose of energy recovery time can be optimally used. Furthermore, the life of the energy storage is increased because the limits for the normal functionality can be made narrower and it becomes less necessary to carry loads in critical areas. Furthermore, the costs for the energy storage are reduced, since this can be advantageously dimensioned smaller by optimizing the energy recovery.

Gemäß der Erfindung werden die Grenzen für die zur Verfügung stehenden Lade- und Entladenergien bzw. die Belastungsgrenzen des an die Elekt- romaschine 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, the limits for the available charging and discharging energies or the load limits of the energy storage device of the vehicle connected to the electric machine of the vehicle in the energy storage module of the controller are determined and can be changed dynamically, so that during the driving operation of 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 = Vz * m * v2 entspricht, wobei m die Fahrzeugmasse und v die Fahrzeuggeschwindigkeit ist.For example, during the driving operation 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 K in = Vz * m * v 2 m is 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 = Vz * 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 is the sum of the current kinetic energy of the vehicle E K in = Vz * m * v 2 and corresponds to 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 is given by the formula Epot = m * g * h, where m: mass, g: acceleration of gravity and h: height difference, where the height difference is the height difference to the destination or to a defined point along the distance still to be covered ,

Claims

Patentansprüche claims 1. Verfahren zur Optimierung der Energierückgewinnung bei einem Hybridfahrzeug, umfassend einen Verbrennungsmotor, zumindest eine Elektroma- schine und einen an die Elektromaschine angeschlossenen Energiespeicher, dadurch gekennzeichnet, dass 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.1. 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, characterized in that during operation of the vehicle for the kinetic energy of the vehicle connected to the electric machine of the vehicle Energy storage of the vehicle storage space is kept free to allow recovery of kinetic energy. 2. Verfahren zur Optimierung der Energierückgewinnung bei einem Hybridfahrzeug, nach Anspruch 1 , dadurch gekennzeichnet, dass der Ladevorgang des Energiespeichers des Fahrzeugs derart gesteuert wird, dass der Energiespeicher zu keiner Zeit während des Fahrbetriebs an seine obere Ladegrenze gelangt.2. A method for optimizing the energy recovery in a hybrid vehicle, according to claim 1, characterized in that the charging of the energy storage of the vehicle is controlled such that the energy storage reaches at no time during driving to its upper limit of loading. 3. Verfahren zur Optimierung der Energierückgewinnung bei einem Hybridfahrzeug, nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Grenzen für die zur Verfügung stehenden Lade- und Entladenergien bzw. die Belastungsgrenzen des an die Elektromaschine des Fahrzeugs angeschlossenen Energiespeichers des Fahrzeugs derart dynamisch verändert werden, dass während des Fahrbetriebs des Fahrzeugs ein Speicherplatz für die Fahrzeug vorhandene kinetische Energie reserviert wird.3. A method for optimizing energy recovery in a hybrid vehicle, according to claim 1 or 2, characterized in that the limits for the available charging and discharging energies and the load limits of the vehicle connected to the electric machine of the vehicle energy storage of the vehicle are dynamically changed in that a storage space for the vehicle existing kinetic energy is reserved during the driving operation of the vehicle. 4. Verfahren zur Optimierung der Energierückgewinnung bei einem Hybridfahrzeug, nach Anspruch 1 , 2 oder 3, dadurch gekennzeichnet, dass während des Betriebs des Fahrzeugs zusätzlich zum für die kinetische Energie des Fahrzeugs freigehaltenen Speicherplatz im an die Elektromaschine des Fahrzeugs angeschlossenen Energiespeicher des Fahrzeugs Speicher- platz freigehalten wird, um eine Rückgewinnung der aktuellen potentiellen E- nergie des Fahrzeugs zu ermöglichen, wobei 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 = Vz * m * v2 und der aktuellen potentiellen Energie des Fahrzeugs entspricht.4. A method for optimizing energy recovery in a hybrid vehicle, according to claim 1, 2 or 3, characterized in that in addition to stored for the kinetic energy of the vehicle storage space in the connected to the electric machine of the vehicle energy storage of the vehicle during operation of the vehicle. is kept free in order to enable a recovery of the current potential e- energy of the vehicle, the limits for the available charging and discharging energies are dynamically changed so that in the energy storage energy storage space is present, which is the sum of the current kinetic Energy of the vehicle E K in = Vz * m * v 2 and corresponds to the current potential energy of the vehicle. 5. Verfahren zur Optimierung der Energierückgewinnung bei einem Hybridfahrzeug, nach Anspruch 4, dadurch g e k e n n z e i c h n e t , dass die potentielle Energie des Fahrzeugs durch Epot = m* g * h gegeben ist, 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. 5. A method for optimizing energy recovery in a hybrid vehicle, according to claim 4, characterized in that the potential energy of the vehicle is given by E pot = m * g * h, where m: mass, g: acceleration due to gravity and h: height difference, where the difference in height is the height difference to the destination or to a defined point along the distance still to be covered.
PCT/EP2008/064236 2007-11-20 2008-10-22 Method for optimizing energy reclamation in a hybrid vehicle Ceased WO2009065690A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007047821.8 2007-11-20
DE102007047821A DE102007047821A1 (en) 2007-11-20 2007-11-20 Method for optimizing energy recovery in a hybrid vehicle

Publications (1)

Publication Number Publication Date
WO2009065690A1 true WO2009065690A1 (en) 2009-05-28

Family

ID=40251835

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/064236 Ceased WO2009065690A1 (en) 2007-11-20 2008-10-22 Method for optimizing energy reclamation in a hybrid vehicle

Country Status (2)

Country Link
DE (1) DE102007047821A1 (en)
WO (1) WO2009065690A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010029443A1 (en) * 2010-05-28 2011-12-01 Zf Friedrichshafen Ag Method for operating a drive train
WO2012169009A1 (en) * 2011-06-07 2012-12-13 トヨタ自動車株式会社 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 (3)

* Cited by examiner, † Cited by third party
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
DE10005581A1 (en) * 1999-02-09 2000-10-26 Hitachi Ltd Operation control method of hybrid vehicle, involves discharging energy recovered by regeneration system and performing schedule of engine output based on computed central value of altitude of vehicle
US6230496B1 (en) * 2000-06-20 2001-05-15 Lockheed Martin Control Systems Energy management system for hybrid electric vehicles

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1319883B1 (en) 2000-02-04 2003-11-12 Fiat Ricerche PROCEDURE AND CONTROL SYSTEM FOR THE PROPULSION OF A VEHICLE
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
US7395837B2 (en) 2005-04-28 2008-07-08 General Motors Corporation Multiplexed pressure switch system for an electrically variable hybrid transmission
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
DE102006034933B4 (en) * 2006-07-28 2016-10-06 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Method and device for controlling a hybrid vehicle drive

Patent Citations (3)

* Cited by examiner, † Cited by third party
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
DE10005581A1 (en) * 1999-02-09 2000-10-26 Hitachi Ltd Operation control method of hybrid vehicle, involves discharging energy recovered by regeneration system and performing schedule of engine output based on computed central value of altitude of vehicle
US6230496B1 (en) * 2000-06-20 2001-05-15 Lockheed Martin Control Systems Energy management system for hybrid electric vehicles

Also Published As

Publication number Publication date
DE102007047821A1 (en) 2009-05-28

Similar Documents

Publication Publication Date Title
DE10141923B4 (en) Drive system and method for controlling a drive system
EP2190710A2 (en) Method for load point displacement during hybrid operation in a parallel hybrid vehicle
DE102014118097B4 (en) Hybrid powertrain with three-mode purge strategy and method for operating a hybrid powertrain
WO2017084888A1 (en) Operation of a drive apparatus of a hybrid vehicle and hybrid vehicle
WO2017084889A1 (en) Operating a drive device of a hybrid vehicle and hybrid vehicle
DE10393594T5 (en) Drive system for dual-engine hybrid vehicle
WO2009021914A1 (en) Method for carrying out a shift during hybrid operation in a parallel hybrid vehicle
EP3326852B1 (en) Motor control of vehicles with multiple e-motors
DE102008058669B4 (en) Method for controlling the recuperation intensity or the recuperation torque of an electric machine of a hybrid or electric vehicle
DE112007003180T5 (en) Hybrid vehicle and control method for this
DE102010018448A1 (en) Hybrid powertrain and method for its operation
DE102013220140A1 (en) Hybrid transmission with a single planetary gear set and multiple modes of operation
WO2009021911A1 (en) Method for carrying out a tractive-force interrupted shifting in a parallel hybrid vehicle
DE102011105632B4 (en) Hybrid powertrain with two planetary gear sets and a single clutch
DE102014222359A1 (en) Hybrid drive system
DE102014217018A1 (en) Control strategy for a hybrid vehicle with a deactivated electric motor
WO2009021909A1 (en) Method for operating a dc-voltage converter in a hybrid vehicle
EP1998978A1 (en) Method for operating a hybrid drive for a vehicle
DE102006045824A1 (en) Hybrid vehicle drive controlling method, involves utilizing control parameter rates, which correspond to determined current driving mode indicators, when predetermined operating situation exists, where given situation is starting phase
DE102006045823B4 (en) Method and apparatus for controlling a parallel hybrid vehicle drive
WO2009065690A1 (en) Method for optimizing energy reclamation in a hybrid vehicle
DE102015207650A1 (en) Engine start in neutral gear position with electrically operated vehicle
DE102018205657A1 (en) VEHICLE AND CONTROL PROCESS FOR A VEHICLE
DE102011087122A1 (en) Method for controlling powertrain in electric car, involves adjusting ratio of rotational torques, provided by drive units for preset rotational torque, independent of power efficiency, applied for drive units, in one mode of operation
DE102008001900A1 (en) Braking process optimizing method for hybrid vehicle, involves converting vehicle recuperation energy into heat via electrical resistance, when energy store of vehicle is charged or when charge condition of store exceeds predetermined limit

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08852605

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 08852605

Country of ref document: EP

Kind code of ref document: A1