DE102011076694A1 - Control device e.g. hybrid control device, for controlling hydraulic system of powertrain of hybrid vehicle, determines actual temperature of electrically drivable additive pump based on map-dependent temperature model - Google Patents
Control device e.g. hybrid control device, for controlling hydraulic system of powertrain of hybrid vehicle, determines actual temperature of electrically drivable additive pump based on map-dependent temperature model Download PDFInfo
- Publication number
- DE102011076694A1 DE102011076694A1 DE102011076694A DE102011076694A DE102011076694A1 DE 102011076694 A1 DE102011076694 A1 DE 102011076694A1 DE 102011076694 A DE102011076694 A DE 102011076694A DE 102011076694 A DE102011076694 A DE 102011076694A DE 102011076694 A1 DE102011076694 A1 DE 102011076694A1
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- Germany
- Prior art keywords
- control device
- temperature
- depending
- auxiliary pump
- actual temperature
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
- F16H61/0025—Supply of control fluid; Pumps therefor
- F16H61/0031—Supply of control fluid; Pumps therefor using auxiliary pumps, e.g. pump driven by a different power source than the engine
-
- 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
- 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 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 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed- or reversing-gearings for conveying rotary motion
- F16H59/68—Inputs being a function of gearing status
- F16H59/72—Inputs being a function of gearing status dependent on oil characteristics, e.g. temperature, viscosity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
- F16H63/50—Signals to an engine or motor
-
- 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
- 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 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 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
- B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
-
- 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
- B60W2510/10—Change speed gearings
- B60W2510/1075—Change speed gearings fluid pressure, e.g. oil pressure
- B60W2510/1085—Change speed gearings fluid pressure, e.g. oil pressure pressure of working fluid
-
- 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
- B60W30/184—Preventing damage resulting from overload or excessive wear of the driveline
- B60W30/1843—Overheating of driveline components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/90—Vehicles comprising electric prime movers
- B60Y2200/92—Hybrid vehicles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H2061/0075—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by a particular control method
- F16H2061/0093—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by a particular control method using models to estimate the state of the controlled object
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
Description
Die Erfindung betrifft eine Steuerungseinrichtung eines Kraftfahrzeugs nach dem Oberbegriff des Anspruchs 1. Des Weiteren betrifft die Erfindung ein Verfahren zum Betreiben eines Hydrauliksystems eines Kraftfahrzeugs nach dem Oberbegriff des Anspruchs 6. The invention relates to a control device of a motor vehicle according to the preamble of claim 1. Furthermore, the invention relates to a method for operating a hydraulic system of a motor vehicle according to the preamble of
Hierzu ist es aus der Praxis bereits bekannt, dass ein Hydrauliksystem eines Kraftfahrzeugs zusätzlich zu der mechanisch angetriebenen Hauptpumpe
Weiterhin zeigt
Dann, wenn im Betrieb eine Hydraulikdruckanforderung über die Zusatzpumpe
Aus der
Die Ermittlung der Ist-Temperatur auf Grundlage eines solchen formelbasierten Temperaturmodells kommt zwar ohne Temperatursensor aus, die Ermittlung ist jedoch rechnerisch aufwendig und bei Vereinfachung des formelabhängigen Temperaturmodells zur Reduzierung des Rechenaufwands fehleranfällig bzw. ungenau. Although the determination of the actual temperature on the basis of such a formula-based temperature model does not require a temperature sensor, the determination is computationally complex and error-prone or inaccurate if the formula-dependent temperature model is simplified in order to reduce the computational effort.
Es besteht daher Bedarf an einer Steuerungseinrichtung für ein Kraftfahrzeug sowie an einem Verfahren zum Betreiben eines Antriebsstrangs eines Kraftfahrzeugs, mit welchem die Ist-Temperatur der Zusatzpumpe ohne Temperatursensor für die Zusatzpumpe einfach und zuverlässig ermittelt werden kann. Hiervon ausgehend liegt der vorliegenden Erfindung die Aufgabe zu Grunde, eine neuartige Steuerungseinrichtung eines Kraftfahrzeugs sowie ein neuartiges Verfahren zum Betreiben eines Hydrauliksystems eines Kraftfahrzeugs zu schaffen. There is therefore a need for a control device for a motor vehicle and a method for operating a drive train of a motor vehicle, with which the actual temperature of the auxiliary pump without temperature sensor for the auxiliary pump can be determined easily and reliably. On this basis, the object of the present invention is to provide a novel control device of a motor vehicle and a novel method for operating a hydraulic system of a motor vehicle.
Diese Aufgabe wird durch eine Steuerungseinrichtung nach Anspruch 1 gelöst. Hiernach ermittelt die Steuerungseinrichtung die oder jede Ist-Temperatur auf Grundlage eines kennfeldabhängigen Temperaturmodels, nämlich derart, dass die Steuerungseinrichtung die oder jede Ist-Temperatur ausgehend von einer Ausgangstemperatur abhängig von mindestens einem in derselben hinterlegten Aufheizkennfeld und/oder abhängig von mindestens einem in derselben hinterlegten Abkühlkennfeld ermittelt. This object is achieved by a control device according to claim 1. Thereafter, the controller determines the or each actual temperature based on a map-dependent temperature model, namely such that the control device or each actual temperature starting from an output temperature depending on at least one stored in the same Aufheizkennfeld and / or dependent on at least one stored in the same Cooling map determined.
Mit der hier vorliegenden Erfindung wird vorgeschlagen, die Ist-Temperatur einer elektrischen Zusatzpumpe auf Grundlage eines kennfeldabhängigen Temperaturmodells zu ermitteln, wobei hierzu ausgehend von einer Ausgangstemperatur abhängig von mindestens einem in der Steuerungseinrichtung hinterlegten Aufheizkennfeld und/oder abhängig von mindestens einem in der Steuerungseinrichtung hinterlegten Abkühlkennfeld die Ist-Temperatur bestimmt wird. Die erfindungsgemäße Steuerungseinrichtung kommt demnach einerseits ohne Temperatursensor der Zusatzpumpe aus, andererseits ist die kennfeldabhängige Bestimmung der Ist-Temperatur weniger rechenintensiv als die aus dem Stand der Technik bekannte, formelabhängige Bestimmung der Ist-Temperatur von elektrischen oder elektronischen Baugruppen. With the present invention, it is proposed to determine the actual temperature of an electric auxiliary pump on the basis of a map-dependent temperature model, starting from an initial temperature depending on at least one stored in the control device Aufheizkennfeld and / or dependent on at least one stored in the control device Abkühlkennfeld the actual temperature is determined. On the one hand, the control device according to the invention therefore does not require a temperature sensor of the auxiliary pump; on the other hand, the map-dependent determination of the actual temperature is less computation-intensive than the formula-dependent determination of the actual temperature of electrical or electronic assemblies known from the prior art.
Das erfindungsgemäße Verfahren zum Betreiben eines Hydrauliksystems eines Kraftfahrzeugs ist in Anspruch 6 definiert. The inventive method for operating a hydraulic system of a motor vehicle is defined in
Bevorzugte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen und der nachfolgenden Beschreibung. Ausführungsbeispiele der Erfindung werden, ohne hierauf beschränkt zu sein, an Hand der Zeichnung näher erläutert. Dabei zeigt: Preferred embodiments of the invention will become apparent from the dependent claims and the description below. Embodiments of the invention will be described, without being limited thereto, with reference to the drawings. Showing:
Die Erfindung betrifft eine Steuerungseinrichtung eines Kraftfahrzeugs, insbesondere eine Hybridsteuerungseinrichtung oder Getriebesteuerungseinrichtung eines Hybridfahrzeugs, sowie ein Verfahren zum Betreiben eines Antriebsstrangs eines solchen Kraftfahrzeugs, nämlich eine Steuerungseinrichtung sowie ein Verfahren, mithilfe derer eine Ist-Temperatur der Zusatzpumpe eines Hydrauliksystems des Kraftfahrzeugs einfach und zuverlässig ermittelt werden kann. Bei der erfindungsgemäßen Steuerungseinrichtung kann es sich zum Beispiel um die in
Erfindungsgemäß ermittelt die Steuerungseinrichtung
Bei dem oder jedem Aufheizkennfeld und/oder dem oder jedem Abkühlkennfeld handelt es sich über Versuche empirisch ermittelte Kennfelder. The or each heat up map and / or the or each cool down map is empirically determined maps through experiments.
Die erfindungsgemäße Bestimmung der Ist-Temperatur der elektrisch antreibbaren Zusatzpumpe
Weitere Details der Erfindung werden nachfolgend unter Bezugnahme auf das Diagramm der
So verdeutlicht ein Block
In einem nachfolgenden Block
Bei diesen Betriebsparametern handelt es sich neben der bereits erwähnten Ausgangstemperatur der Zusatzpumpe
Abhängig von diesen Betriebsdaten der Zusatzpumpe
Darauffolgend wird in einem Block
Wird hingegen in Block
Dann, wenn die Zusatzpumpe
Vorzugsweise ist für jeden Betriebspunkt der Zusatzpumpe
Dann, wenn die Zusatzpumpe
Wie bereits erwähnt, handelt es sich bei Start des erfindungsgemäßen Verfahrens bei der Ausgangstemperatur um die Getriebeöltemperatur des Getriebes
In der obigen Beschreibung wurde davon ausgegangen, dass die Zusatzpumpe als Einheit betrachtet wird, die eine einheitliche Ist-Temperatur aufweist. In the above description, it has been assumed that the booster pump is regarded as a unit having a uniform actual temperature.
Im Unterschied hierzu ist es auch möglich, die elektrisch angetriebene Zusatzpumpe
Eine solche Untergliederung der Zusatzpumpe
Wie bereits ausgeführt, kann es sich bei der erfindungsgemäßen Steuerungseinrichtung um eine Hybridsteuerungseinrichtung oder auch um eine Getriebesteuerungseinrichtung handeln. Im Unterschied hierzu ist es auch möglich, die Erfindung in einer separaten Steuerungseinrichtung der Zusatzpumpe zu implementieren oder in einem übergeordneten Fahrzeugleitrechner des Kraftfahrzeugs. As already stated, the control device according to the invention can be a hybrid control device or else a transmission control device. In contrast, it is also possible to implement the invention in a separate control device of the auxiliary pump or in a higher-level vehicle control computer of the motor vehicle.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 1 1
- Antriebsaggregat power unit
- 2 2
- Verbrennungsmotor internal combustion engine
- 3 3
- elektrische Maschine electric machine
- 4 4
- Abtrieb output
- 5 5
- Getriebe transmission
- 6 6
- Kupplung clutch
- 7 7
- elektrischer Energiespeicher electrical energy storage
- 8 8th
- Hauptpumpe main pump
- 9 9
- Getriebewelle gear shaft
- 10 10
- Zusatzpumpe additional pump
- 11 11
- elektrische Maschine electric machine
- 12 12
- Steuerungseinrichtung control device
- 13 13
- Block block
- 14 14
- Block block
- 15 15
- Block block
- 16 16
- Block block
- 17 17
- Block block
- 18 18
- Block block
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102009025078 A1 [0006] DE 102009025078 A1 [0006]
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011076694A DE102011076694A1 (en) | 2011-05-30 | 2011-05-30 | Control device e.g. hybrid control device, for controlling hydraulic system of powertrain of hybrid vehicle, determines actual temperature of electrically drivable additive pump based on map-dependent temperature model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011076694A DE102011076694A1 (en) | 2011-05-30 | 2011-05-30 | Control device e.g. hybrid control device, for controlling hydraulic system of powertrain of hybrid vehicle, determines actual temperature of electrically drivable additive pump based on map-dependent temperature model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102011076694A1 true DE102011076694A1 (en) | 2012-12-06 |
Family
ID=47173136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102011076694A Withdrawn DE102011076694A1 (en) | 2011-05-30 | 2011-05-30 | Control device e.g. hybrid control device, for controlling hydraulic system of powertrain of hybrid vehicle, determines actual temperature of electrically drivable additive pump based on map-dependent temperature model |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102011076694A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012211674A1 (en) * | 2012-07-05 | 2014-01-09 | Zf Friedrichshafen Ag | Method for operating parallel hybrid powertrain of motor car, involves activating additive pump when rotation speed threshold is below driving speed of main pump and in presence of hydraulic system-side request for hydraulic fluid |
| DE102014115633B4 (en) | 2013-10-31 | 2022-02-24 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Method of controlling an electrically actuated hydraulic pump in a powertrain system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090074590A1 (en) * | 2007-09-19 | 2009-03-19 | Aisin Aw Co., Ltd. | Vehicle control apparatus |
| US20090242290A1 (en) * | 2008-03-28 | 2009-10-01 | Aisin Aw Co., Ltd. | Drive control device |
| DE102009025078A1 (en) | 2008-06-12 | 2010-02-11 | Continental Teves Ag & Co. Ohg | Electrical or electronic subassembly's component temperature calculating method for electric motor of motor vehicle, involves calculating temperature value after switching-on and/or activating control unit, using temperature model |
-
2011
- 2011-05-30 DE DE102011076694A patent/DE102011076694A1/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090074590A1 (en) * | 2007-09-19 | 2009-03-19 | Aisin Aw Co., Ltd. | Vehicle control apparatus |
| US20090242290A1 (en) * | 2008-03-28 | 2009-10-01 | Aisin Aw Co., Ltd. | Drive control device |
| DE102009025078A1 (en) | 2008-06-12 | 2010-02-11 | Continental Teves Ag & Co. Ohg | Electrical or electronic subassembly's component temperature calculating method for electric motor of motor vehicle, involves calculating temperature value after switching-on and/or activating control unit, using temperature model |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012211674A1 (en) * | 2012-07-05 | 2014-01-09 | Zf Friedrichshafen Ag | Method for operating parallel hybrid powertrain of motor car, involves activating additive pump when rotation speed threshold is below driving speed of main pump and in presence of hydraulic system-side request for hydraulic fluid |
| DE102012211674B4 (en) | 2012-07-05 | 2024-09-26 | Zf Friedrichshafen Ag | Method for operating a parallel hybrid drive train of a vehicle |
| DE102014115633B4 (en) | 2013-10-31 | 2022-02-24 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Method of controlling an electrically actuated hydraulic pump in a powertrain system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R123 | Application deemed withdrawn due to non-payment of filing fee | ||
| R409 | Internal rectification of the legal status completed | ||
| R409 | Internal rectification of the legal status completed | ||
| R163 | Identified publications notified | ||
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee | ||
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20141202 |