DE102007047823A1 - Method for decoupling the functional module of the hybrid powertrain - Google Patents

Method for decoupling the functional module of the hybrid powertrain Download PDF

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Publication number
DE102007047823A1
DE102007047823A1 DE102007047823A DE102007047823A DE102007047823A1 DE 102007047823 A1 DE102007047823 A1 DE 102007047823A1 DE 102007047823 A DE102007047823 A DE 102007047823A DE 102007047823 A DE102007047823 A DE 102007047823A DE 102007047823 A1 DE102007047823 A1 DE 102007047823A1
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energy storage
module
energy
hybrid powertrain
hybrid
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DE102007047823A
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German (de)
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Stefan Wallner
Notker Dr. Amann
Mesut Er
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ZF Friedrichshafen AG
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ZF Friedrichshafen AG
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Priority to DE102007047823A priority Critical patent/DE102007047823A1/en
Priority to PCT/EP2008/064238 priority patent/WO2009065692A2/en
Publication of DE102007047823A1 publication Critical patent/DE102007047823A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/80—Exchanging energy storage elements, e.g. removable batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • 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
    • B60W20/13—Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/549—Current
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/80—Time limits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2260/00—Operating Modes
    • B60L2260/40—Control modes
    • B60L2260/50—Control modes by future state prediction
    • B60L2260/58—Departure time prediction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • 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
    • 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
    • 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
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors

Abstract

Im Rahmen des Verfahrens zur Entkopplung des allgemeinen Funktionsmoduls des Hybrid-Antriebsstrangs vom energiespeicherspezifischen Modul bei einem Hybridfahrzeug, insbesondere bei einem parallelen Hybridfahrzeug, umfassend einen Verbrennungsmotor, zumindest eine Elektromaschine und einen an die Elektromaschine angeschlossenen Energiespeicher, werden im Funktionsmodul des Hybrid-Antriebsstrangs anstelle von energiespeicherspezifischen Größen energiespeicherunabhängige physikalische Größen verwendet.In the context of the method for decoupling the general functional module of the hybrid powertrain from the energy storage module 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, are used in the functional module of the hybrid powertrain instead of Energy-storage-independent sizes used energy storage independent physical quantities.

Description

Die vorliegende Erfindung bezieht sich auf ein Verfahren zur Entkopplung des allgemeinen Funktionsmoduls des Hybrid-Antriebsstrangs vom energiespeicherspezifischen Modul 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 decoupling of the general functional module of the hybrid powertrain from the energy storage specific Module in a hybrid vehicle, in particular in a parallel Hybrid vehicle comprising an internal combustion engine, at least one Electric machine and one connected to the electric machine Energy storage, according to the preamble of the 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 DE 10 2006 019 679 A1 ein Antriebsstrang mit einem elektrisch verstellbaren Hybridgetriebe und einem elektrohydraulischen 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, under the DE 10 2006 019 679 A1 a powertrain having an electrically variable hybrid transmission and an electro-hydraulic control system, a plurality of electric power units and a plurality of torque-transmitting mechanisms known. Here, the torque-transmitting mechanisms may be selectively engaged by the electro-hydraulic control system to provide four forward speeds, a neutral state, a low and high speed electrical mode, a low and high speed electrically variable modes, and a hill hold mode.

Aus der DE 10 2005 057 607 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 the DE 10 2005 057 607 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 gear exhibiting 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.

Nach dem Stand der Technik beruhen alle zur Steuerung des Hybrid-Antriebsstrangs erforderlichen Berechnungen im Funktionsmodul, welche die im Energiespeicher vorhandene elektrische Energie als Parameter benötigen, auf energiespeicherspezifische Größen, die vom energiespeicherspezifischen Modul an das Funktionsmodul übermittelt werden, wie z. B. auf den Ladezustandswert (SOC-Wert, „State of Charge"-Wert), so dass bei einem Austausch des Energiespeichers diese Berechnungen in nachteiliger Weise nicht mehr gelten bzw. angepasst werden müssen; die Wiederverwendung des vorhandenen Funktionsmoduls des Hybrid-Antriebsstrangs wird dadurch erheblich erschwert.To In the prior art, all are based on the control of the hybrid powertrain required calculations in the function module, which in the energy storage need existing electrical energy as a parameter, on energy storage specific sizes used by the energy-specific module transmitted to the function module be such. For example, the state of charge value (SOC value, "State of charge "value), so when replacing the energy store these calculations no longer apply in a disadvantageous way or need to be adapted; the reuse of the existing one Function module of the hybrid powertrain becomes significant difficult.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Entkopplung des allgemeinen Funktionsmoduls des Hybrid-Antriebsstrangs vom energiespeicherspezifischen Modul bei einem Hybridfahrzeug, insbesondere bei einem parallelen Hybridfahrzeug, umfassend einen Verbrennungsmotor, zumindest eine Elektromaschine und einen an die Elektromaschine ange schlossenen Energiespeicher anzugeben, durch dessen Durchführung bei einem Austausch des Energiespeichers die Schnittstelle zwischen dem energiespeicherspezifischen-Modul und dem Funktionsmodul des Hybrid-Antriebsstrangs sowie das Funktionsmodul des Hybrid-Antriebsstrangs unverändert bleiben. Des weiteren sollen Änderungen im Energiespeichermodell keine Auswirkungen auf das Funktionsmodul des Hybrid-Antriebsstrangs haben.Of the The present invention is based on the object, a method for decoupling the general functional module of the hybrid powertrain from Energy storage module specific to 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 indicate connected energy storage, by its implementation when replacing the energy storage the interface between the energy storage module and the functional module of the Hybrid powertrain and the functional module of the hybrid powertrain remain unchanged. Furthermore, there are changes in the energy storage model no effect on the function module of the hybrid powertrain.

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 vorgeschlagen, im Funktionsmodul des Hybrid-Antriebsstrangs anstelle von energiespeicherspezifischen Größen energiespeicherunabhängige physikalische Größen zu verwenden, wodurch das allgemeine Funktionsmodul des Hybrid-Antriebsstrangs vom energiespeicherspezifischen Modul entkoppelt wird.Therefore is proposed in the functional module of the hybrid powertrain instead of energy storage specific sizes Energy storage independent physical quantities to use, making the general functional module of the hybrid powertrain is decoupled from the energy storage module.

Gemäß der Erfindung wird zudem vorgeschlagen, an der Schnittstelle zwischen dem energiespeicherspezifischen-Modul und dem Funktionsmodul des Hybrid-Antriebsstrangs die energiespeicherspezifischen Größen, wie beispielsweise den Ladezustand der Batterie (SOC), in fahrzeugrelevante, physikalische Größen umzurechnen. Diese Umrechnung kann z. B. auch im energiespeicherspezifischen-Modul durchgeführt werden.According to the Invention is also proposed at the interface between the energy storage module and the functional module of the Hybrid powertrain the energy storage specific sizes, such as the state of charge of the battery (SOC), in vehicle-related, physical To convert sizes. This conversion can z. B. also performed in the energy storage module become.

Durch die erfindungsgemäße Konzeption kann der vorhandene Energiespeicher durch jeden beliebigen Energiespeicher ersetzt werden, wobei in diesem Fall lediglich das energiespeicherspezifische Modul ausgetauscht werden muss; die Schnittstelle zwischen dem energiespeicherspezifischen-Modul und dem Funktionsmodul des Hybrid-Antriebsstrangs sowie das Funktionsmodul des Hybrid-Antriebsstrangs bleiben unverändert.By the concept of the invention may be the existing Energy storage to be replaced by any energy storage, in which case only the energy storage specific module must be replaced; the interface between the energy storage module and the functional module of the hybrid powertrain and the functional module of the hybrid powertrain remain unchanged.

Ein weiterer Vorteil der Erfindung besteht darin, dass Änderungen im Energiespeichermodell keine Auswirkungen auf das restliche Funktionsmodul haben. Des weiteren wird durch die vorgeschlagene Verwendung physikalischer Größen im Funktionsmodul des Hybrid-Antriebsstrangs eine bessere Lesbarkeit und ein leichteres Verständnis des Zustandes des Hybrid-Antriebsstrangs gewährleistet.One Another advantage of the invention is that changes have no effect on the rest of the function module in the energy storage model. Furthermore, the proposed use of physical Sizes in the functional module of the hybrid powertrain better readability and easier understanding the state of the hybrid powertrain guaranteed.

Vorzugsweise werden als fahrzeugrelevante physikalische Größen Energien und Leistungen bezogen auf den Hybrid-Antriebsstrang verwendet. Hierbei wird der Ladezustand der Batterie (SOC) in Abhängigkeit weiterer energiespeicherspezifischer Größen in verfügbare Lade- und Entladeenergie umgerechnet. Beispielsweise kann diese Umrechnung wie folgt erfolgen: Verfügbare Entladenergie = (aktueller Ladezustand – untere Ladegrenze)·Gesamtkapazität des Energiespeichers·Energiespeicherspannung; und Verfügbare Ladeenergie = (obere Ladegrenze – aktueller Ladezustand)·Gesamtkapazität des Energiespeichers·Energiespeicherspannung Preferably, energy and power related to the hybrid powertrain are used as vehicle-related physical quantities. In this case, the state of charge of the battery (SOC) is converted into available charging and discharging energy as a function of further energy-storage-specific variables. For example, this conversion can be done as follows: Available discharge energy = (current state of charge - lower charge limit) · total energy storage capacity · energy storage voltage; and Available charging energy = (upper charging limit - current charge state) · Total energy storage capacity · Energy storage voltage

Des weiteren kann die Umrechnung von energiespeicherspezifischen Größen in Leistungswerten gemäß einer ersten erfindungsgemäßen Variante wie folgt erfolgen:
Anhand der im Energiespeicher zur Verfügung stehenden Energie d. h. anhand der bereits berechneten verfügbaren Lade- und Entladenergie kann die verfügbare Lade- und Entladeleistung in Abhängigkeit von der zu erwartenden Belastungszeit des Energiespeichers abgeleitet werden. Hierbei ergeben sich folgende Zusammenhänge: Verfügbare Ladeleistung = Verfügbare Ladeenergie/zu erwartende Belastungszeit des Energiespeichers; und Verfügbare Entladeleistung = Verfügbare Entladeenergie/zu erwartende Belastungszeit des Energiespeichers. Furthermore, the conversion of energy-storage-specific variables into performance values according to a first variant of the invention can be carried out as follows:
On the basis of the energy available in the energy store, ie on the basis of the already calculated available charging and discharging energy, the available charging and discharging power can be derived as a function of the expected load time of the energy store. This results in the following relationships: Available charging power = available charging energy / expected charging time of the energy storage; and Available discharge capacity = Available discharge energy / expected energy storage time.

Gemäß einer zweiten erfindungsgemäßen Variante kann die Umrechnung von energiespeicherspezifischen Größen in Leistungswerten bzw. in die verfügbare Lade- und Entladeleistung dadurch erfolgen, dass die maximalen und minimalen erlaubten Energiespeicherströme in verfügbare Leistungen bezogen auf den Antriebsstrang umgerechnet werden. Hierbei können die maximalen und minimalen erlaubten Energiespeicherströme feststehende energiespeicherspezifische Parameter sein oder vom Energiespeichermanagementsystem abhängig vom Zustand des Energiespeichers dynamisch ausgerechnet werden.According to one second variant of the invention, the conversion of energy storage specific quantities in power values or in the available charging and discharging power thereby take place that the maximum and minimum allowed energy storage currents in available power related to the powertrain be converted. Here are the maximum and minimum allowed energy storage streams fixed energy storage specific Be parameter or dependent on the energy storage management system be dynamically calculated from the state of the energy storage.

Im Rahmen einer vorteilhaften Weiterbildung der Erfindung wird vorgeschlagen, die maximale und minimale Elektromaschinenleistung zu verwenden, wobei aus der maximalen und minimalen Elektromaschinenleistung die maximale mögliche Zeit für rein elektrisches Fahren und die minimale benötigte Zeit zum vollständigen Aufladen des Energiespeichers berechnet wird. Hierbei gilt: Maximal mögliche Zeit für rein elektrisches Fahren = Verfügbare Entladeenergie/maximale Elektromaschinenleistung; und Minimale Zeit zum Aufladen der Batterie = Verfügbare Ladeenergie/minimale Elektromaschinenleistung. In the context of an advantageous development of the invention, it is proposed to use the maximum and minimum electric machine power, wherein the maximum possible time for purely electric driving and the minimum time required for fully charging the energy store is calculated from the maximum and minimum electric machine power. Where: Maximum possible time for purely electric driving = available discharging energy / maximum electric machine power; and Minimum time to charge the battery = available charging power / minimum electric machine power.

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]

Claims (8)

Verfahren zur Entkopplung des allgemeinen Funktionsmoduls des Hybrid-Antriebsstrangs vom energiespeicherspezifischen Modul bei einem Hybridfahrzeug, insbesondere bei einem parallelen Hybridfahrzeug, umfassend einen Verbrennungsmotor, zumindest eine Elektromaschine und einen an die Elektromaschine angeschlossenen Energiespeicher, dadurch gekennzeichnet, dass im Funktionsmodul des Hybrid-Antriebsstrangs anstelle von energiespeicherspezifischen Größen energiespeicherunabhängige physikalische Größen verwendet werden.Method for decoupling the general functional module of the hybrid powertrain from the energy storage module 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, characterized in that in the functional module of the hybrid powertrain instead of Energy-storage-specific sizes energy storage independent physical variables are used. Verfahren zur Entkopplung des allgemeinen Funktionsmoduls des Hybrid-Antriebsstrangs vom energiespeicherspezifischen Modul bei einem Hybridfahrzeug, nach Anspruch 1, dadurch gekennzeichnet, dass an der Schnittstelle zwischen dem energiespeicherspezifischen Modul und dem Funktionsmodul des Hybrid-Antriebsstrangs die energiespeicherspezifischen Größen in fahrzeugrelevante physikalische Größen umgerechnet werden.Method for decoupling the general function module of the hybrid powertrain from the energy storage module in a hybrid vehicle according to claim 1, characterized in that that at the interface between the energy storage specific Module and the functional module of the hybrid powertrain the energy storage specific Sizes in vehicle-related physical quantities be converted. Verfahren zur Entkopplung des allgemeinen Funktionsmoduls des Hybrid-Antriebsstrangs vom energiespeicherspezifischen Modul bei einem Hybridfahrzeug, nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass als fahrzeugrelevante physikalische Größen Energien und Leistungen bezogen auf den Hybrid-Antriebsstrang verwendet werden.Method for decoupling the general function module of the hybrid powertrain from the energy storage module in a hybrid vehicle according to claim 1 or 2, characterized in that that as vehicle-relevant physical quantities Energies and power related to the hybrid powertrain used become. Verfahren zur Entkopplung des allgemeinen Funktionsmoduls des Hybrid-Antriebsstrangs vom energiespeicherspezifischen Modul bei einem Hybridfahrzeug, nach Anspruch 3, dadurch gekennzeichnet, dass als fahrzeugrelevante physikalische Größen die verfügbare Lade- und Entladeenergie verwendet werden, wobei der Ladezustand der Batterie (SOC) in Ab hängigkeit weiterer energiespeicherspezifischer Größen wie folgt in die verfügbare Lade- und Entladeenergie umgerechnet wird: Verfügbare Entladenergie = (aktueller Ladezustand – untere Ladegrenze)·Gesamtkapazität des Energiespeichers·Energiespeicherspannung; und Verfügbare Ladeenergie = (obere Ladegrenze – aktueller Ladezustand)·Gesamtkapazität des Energiespeichers·Energiespeicherspannung. A method for decoupling the general functional module of the hybrid powertrain from the energy storage module specific to a hybrid vehicle according to claim 3, characterized in that as vehicle-related physical variables, the available charging and discharging energy are used, the state of charge of the battery (SOC) in dependence on further Energy-specific quantities is converted into the available charging and discharging energy as follows: Available discharge energy = (current state of charge - lower charge limit) · total energy storage capacity · energy storage voltage; and Available charging energy = (upper charging limit - current charge state) · Total energy storage capacity · Energy storage voltage. Verfahren zur Entkopplung des allgemeinen Funktionsmoduls des Hybrid-Antriebsstrangs vom energiespeicherspezifischen Modul bei einem Hybridfahrzeug, nach Anspruch 4, dadurch gekennzeichnet, dass als fahrzeugrelevante physikalische Größen die verfügbare Lade- und Entladeleistung verwendet werden, wobei die verfügbare Lade- und Entladeleistung anhand der bereits berechneten verfügbaren Lade- und Entladenergie in Abhängigkeit von der zu erwartenden Belastungszeit des Energiespeichers abgeleitet werden.Method for decoupling the general function module of the hybrid powertrain from the energy storage module in a hybrid vehicle according to claim 4, characterized in that that as vehicle-relevant physical quantities the available charging and discharging power are used, the available charging and discharging power on the basis of already calculated available charging and discharging energy depending on the expected load time of the Energy storage are derived. Verfahren zur Entkopplung des allgemeinen Funktionsmoduls des Hybrid-Antriebsstrangs vom energiespeicherspezifischen Modul bei einem Hybridfahrzeug, nach Anspruch 4, dadurch gekennzeichnet, dass als fahrzeugrelevante physikalische Größen die verfügbare Lade- und Entladeleistung verwendet werden, wobei die Umrechnung von energiespeicherspezifischen Größen in die verfügbare Lade- und Entladeleistung dadurch erfolgt, dass die maximalen und minimalen erlaubten Energiespeicherströme in die verfügbare Lade- und Entladeleistung bezogen auf den Antriebsstrang umgerechnet werden.Method for decoupling the general function module of the hybrid powertrain from the energy storage module in a hybrid vehicle according to claim 4, characterized in that that as vehicle-relevant physical quantities the available charging and discharging power are used, where the conversion of energy storage specific sizes into the available charging and discharging power thereby takes place that the maximum and minimum allowed energy storage currents in the available charging and discharging power based on the drive train to be converted. Verfahren zur Entkopplung des allgemeinen Funktionsmoduls des Hybrid-Antriebsstrangs vom energiespeicherspezifischen Modul bei einem Hybridfahrzeug, nach Anspruch 4, dadurch gekennzeichnet, dass die maximalen und minimalen erlaubten Energiespeicherströme feststehende energiespeicherspezifische Parameter sind oder vom Energiespeichermanagementsystem in Abhängigkeit vom Zustand des Energiespeichers dynamisch ausgerechnet werden.Method for decoupling the general function module of the hybrid powertrain from the energy storage module in a hybrid vehicle according to claim 4, characterized in that that the maximum and minimum allowed energy storage currents fixed energy storage specific parameters are or from Energy storage management system depending on the state of the energy storage are calculated dynamically. Verfahren zur Entkopplung des allgemeinen Funktionsmoduls des Hybrid-Antriebsstrangs vom energiespeicherspezifischen Modul bei einem Hybridfahrzeug, nach einem der Ansprüche 3 bis 8, dadurch gekennzeichnet, dass aus der maximalen und minimalen Elektromaschinenleistung die maximale mögliche Zeit für rein elektrisches Fahren und die minimale benötigte Zeit zum vollständigen Aufladen des Energiespeichers berechnet wird, wobei gilt: Maximal mögliche Zeit für rein elektrisches Fahren = Verfügbare Entladeenergie/maximale Elektromaschinenleistung; und Minimale Zeit zum Aufladen der Batterie = Verfügbare Ladeenergie/minimale Elektromaschinenleistung. A method for decoupling the general functional module of the hybrid powertrain from the energy storage module in a hybrid vehicle, according to any one of claims 3 to 8, characterized in that from the maximum and minimum electric machine power, the maximum possible time for purely electric driving and the minimum time required to complete Charging the energy storage is calculated, where: Maximum possible time for purely electric driving = available discharging energy / maximum electric machine power; and Minimum time to charge the battery = available charging power / minimum electric machine power.
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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

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