WO2015139909A1 - Hybrid drive-train - Google Patents
Hybrid drive-train Download PDFInfo
- Publication number
- WO2015139909A1 WO2015139909A1 PCT/EP2015/053468 EP2015053468W WO2015139909A1 WO 2015139909 A1 WO2015139909 A1 WO 2015139909A1 EP 2015053468 W EP2015053468 W EP 2015053468W WO 2015139909 A1 WO2015139909 A1 WO 2015139909A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- driver
- combustion engine
- acoustic signal
- internal combustion
- manual transmission
- 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
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
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
-
- 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
- B60K6/08—Prime-movers comprising combustion engines and mechanical or fluid energy storing means
- B60K6/12—Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable fluidic accumulator
-
- 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
- F16H63/42—Ratio indicator devices
-
- 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
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0638—Engine 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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/10—Change speed gearings
- B60W2510/1005—Transmission ratio engaged
-
- 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
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2400/00—Special features of vehicle units
- B60Y2400/70—Gearings
- B60Y2400/71—Manual or semi-automatic, e.g. automated manual transmissions
-
- 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
- F16H63/42—Ratio indicator devices
- F16H2063/426—Ratio indicator devices with means for advising the driver for proper shift action, e.g. prompting the driver with allowable selection range of ratios
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
-
- 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
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
-
- 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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/84—Data processing systems or methods, management, administration
Definitions
- the invention relates to a hybrid powertrain with an internal combustion engine as a primary drive, with a secondary drive and with a
- Manual transmission which is manually operated by a driver.
- the invention further relates to a method for operating such
- US Pat. No. 8,320,581 B2 discloses an active acoustic system for improving an engine sound of a hybrid vehicle.
- the object of the invention is to simplify the operation of a hybrid powertrain with an internal combustion engine as a primary drive, with a secondary drive and with a manual transmission, which is manually operated by a driver.
- the object is in a hybrid powertrain with an internal combustion engine as a primary drive, with a secondary drive and with a
- Manual transmission which is manually operable by a driver, solved by an acoustic signaling device, which serves to make the driver acoustically aware of the need for a manual gear change.
- an acoustic signaling device which serves to make the driver acoustically aware of the need for a manual gear change.
- the secondary drive comprises, for example, at least one electric machine.
- the secondary drive particularly preferably comprises at least one hydraulic machine.
- Hydraulic machine as a secondary drive is also called
- Hydraulic hybrid drivetrain referred.
- a preferred embodiment of the hybrid powertrain is characterized in that the acoustic signaling device comprises at least one loudspeaker that selectively generates an additional noise, which indicates the driver acoustically to the need for a manual gear change.
- the loudspeaker can be arranged in the engine compartment of the motor vehicle and generate, for example, a sound that corresponds to the real engine noise.
- the or a further loudspeaker can be arranged in the motor vehicle interior.
- the loudspeaker is preferably arranged in the engine compartment and / or in the vehicle interior such that the additional noise generated by the loudspeaker is clear to the driver
- Audio system can be used, in particular a speaker of the existing audio system on the driver side.
- a hybrid powertrain comprising as primary drive an internal combustion engine and a secondary drive, with a manual transmission, which is manually actuated by a driver, in particular a hybrid powertrain described above
- the above object is alternatively or additionally achieved in that the driver is alerted acoustically to the necessity of a manual gear change with an acoustic signal.
- the acoustic signal is generated, for example, via at least one speaker.
- the loudspeaker is arranged, for example, in the engine compartment or in the vehicle interior.
- a preferred embodiment of the method is characterized
- a fundamental frequency of the acoustic signal is determined by an engaged gear of the manual transmission.
- the fundamental frequency of the acoustic signal is changed to influence the driver in terms of a more fuel-efficient driving behavior.
- a further preferred embodiment of the method is characterized in that the fundamental frequency of the acoustic signal is selected in proportion to a driving speed.
- the fundamental frequency of the acoustic signal is preferably chosen so that the acoustic signal has the noise character of a conventional drive train, which includes only a combustion engine as a drive and with a manual transmission
- a further preferred embodiment of the method is characterized in that the driver by a with the driving speed increasing / decreasing frequency of the acoustic signal on the
- the influencing of the driver with the acoustic signal is particularly advantageous when the internal combustion engine is stationary in the hybrid drive train, for example in a so-called sailing operation of a motor vehicle equipped with the hybrid drive train.
- a further preferred exemplary embodiment of the method is characterized in that a noise level and / or an amplitude of the acoustic signal is raised or lowered, if, for example, it is recognized on the basis of an operating strategy that a more favorable operating point could be displayed with another gear of the manual transmission.
- the acoustic signal for example, acoustically a Untertertiges or high-speed driving a motor vehicle with a conventional
- Powertrain are simulated, which contains only one internal combustion engine as a drive and is equipped with a manual transmission.
- a further preferred embodiment of the method is characterized in that the acoustic signal simulates the operation of the internal combustion engine, even if the internal combustion engine is stationary. The driver can thus be given the feeling that he is driving with a motor vehicle that is equipped with a conventional drive train, which includes only the internal combustion engine as a drive.
- the invention further relates to a computer program product comprising a computer program having software means for performing a previously described method when the computer program is executed on a computer.
- the computer is, for example, a control unit that is integrated in a motor vehicle.
- the control unit is also referred to as an electrical control unit or electronic control unit.
- the invention further relates to a control device with such a computer program product.
- the control unit is preferably in a
- the motor vehicle installed.
- the motor vehicle is in particular a hydraulic hybrid vehicle with a previously described
- Figure 2 shows a similar hybrid powertrain as in Figure 1 with a secondary drive connected to a transmission input of a
- Hybrid powertrain 1; 41 serves to drive a motor vehicle with driven wheels 2, 5.
- the driven wheels 2, 5 are, for example, via a differential 3 drivingly to the hybrid drive train 1; 41 tethered.
- Hybrid powertrain 1; 41 includes a primary drive 4 a
- the hydraulic machine 11 of the secondary drive 10 is hydraulically connected to a low-pressure side 13 on the input side.
- the low pressure side 13 includes a low pressure accumulator 14 with hydraulic medium, which with
- the hydraulic machine 11 On the output side, the hydraulic machine 11 is hydraulically with a
- the high pressure side 16 connected.
- the high pressure side 16 includes a
- Hydraulic accumulator 17 which is designed as a high-pressure accumulator and
- valve device 18 is connected between the output of the hydraulic machine 11 and the high-pressure accumulator 17, a valve device 18 is connected.
- the valve device 18 is, for example, a storage charging valve.
- the hybrid powertrain 1; 41 further includes a manual transmission 20, also referred to as a manual transmission.
- the manual transmission 20 is in the hybrid powertrain 1; 41 is arranged between the internal combustion engine 6 and the differential 3.
- a clutch 23 is between the engine 6 and the
- a clutch 24 is assigned to the hydraulic machine 11.
- the secondary drive 10 is connected to the hydraulic machine 11 with the interposition of the clutch 24 to a transmission output of the manual transmission 20.
- the connection of the secondary drive 10 via a translation stage 22, which is arranged between the manual transmission 20 and the differential 3.
- the secondary drive 10 is connected to the hydraulic machine 11 with the interposition of the clutch 24 to a transmission input of the manual transmission 20.
- the connection of the secondary drive 10 via a translation stage 22, which is arranged between the clutch 23 and the manual transmission 20.
- the hybrid powertrain 1 in Figure 1 can in different
- Hydraulic accumulator 17 an acceleration torque can be provided depending on demand.
- the hybrid powertrain 1 can be operated purely hydraulically.
- the hybrid powertrain 1 can also be driven only with the internal combustion engine 6. Then, the hydraulic machine 11 is decoupled from the hybrid powertrain 1 via the clutch 24. With the manual transmission 20, the gear selection takes place during operation of the hybrid drive train 1 manually by the driver.
- the hybrid drive train 41 shown in FIG. 2 can be operated in exactly the same way as the hybrid drive train 1 illustrated in FIG. 1.
- the hybrid components of the hybrid drive train 41 illustrated in FIG optionally be designed advantageously, especially in terms of size and speed range.
- FIGS. 1 and 2 a circle 30; 50 an acoustic
- Hybrid powertrain 1 41 equipped hybrid vehicle to draw attention to the need for a manual gear change.
- Such a change of gear to be made by the driver can provide the driver with the inventive acoustic signal device 30; 50 be signaled in a simple manner.
- the acoustic signal device 30; 50 may in a passenger compartment of the hybrid powertrain 1; 41 equipped vehicle via at least one speaker targeted an additional noise generated.
- the frequency contents of the additional noise are independent of an actual rotational speed of the internal combustion engine 6.
- acoustic signal device 30; 50 is the driver regardless of the actual speed of the engine 6 by a simulated, for example, high-speed drive noise a required gear change, ie an upshift of the manual transmission 20, signals.
- a low-speed drive noise to the driver a change in a smaller gear, so a downshifting of the manual transmission 20 is signaled.
- a fundamental frequency of the acoustic signal or the additional noise is determined by a currently engaged gear and is proportional to the current driving speed. At the fundamental frequency, an audible signal or additional noise is generated, which corresponds to the
- Noise character of a conventional transmission drive train corresponds.
- the operating strategy recognizes that another gear is a cheaper one
- the recorded noise or signal simulates the operation of the
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
Description
Beschreibung Titel Description title
Hybridantriebsstrang Hybrid powertrain
Die Erfindung betrifft einen Hybridantriebsstrang mit einer Brennkraftmaschine als primären Antrieb, mit einem sekundären Antrieb und mit einem The invention relates to a hybrid powertrain with an internal combustion engine as a primary drive, with a secondary drive and with a
Handschaltgetriebe, das durch einen Fahrer manuell betätigbar ist. Die Erfindung betrifft des Weiteren ein Verfahren zum Betreiben eines derartigen Manual transmission, which is manually operated by a driver. The invention further relates to a method for operating such
Hybridantriebsstrangs. Hybrid powertrain.
Stand der Technik State of the art
Aus dem US-Patent US 8,320,581 B2 ist ein aktives akustisches System zum Verbessern eines Motorsounds eines Hybridfahrzeugs bekannt. US Pat. No. 8,320,581 B2 discloses an active acoustic system for improving an engine sound of a hybrid vehicle.
Offenbarung der Erfindung Disclosure of the invention
Aufgabe der Erfindung ist es, den Betrieb eines Hybridantriebsstrangs mit einer Brennkraftmaschine als primären Antrieb, mit einem sekundären Antrieb und mit einem Handschaltgetriebe, das durch einen Fahrer manuell betätigbar ist, zu vereinfachen. The object of the invention is to simplify the operation of a hybrid powertrain with an internal combustion engine as a primary drive, with a secondary drive and with a manual transmission, which is manually operated by a driver.
Die Aufgabe ist bei einem Hybridantriebsstrang mit einer Brennkraftmaschine als primären Antrieb, mit einem sekundären Antrieb und mit einem The object is in a hybrid powertrain with an internal combustion engine as a primary drive, with a secondary drive and with a
Handschaltgetriebe, das durch einen Fahrer manuell betätigbar ist, durch eine akustische Signaleinrichtung gelöst, die dazu dient, den Fahrer akustisch auf die Notwendigkeit eines manuellen Gangwechsels aufmerksam zu machen. Über die akustische Aufforderung zum Gangwechsel kann der Fahrer eines mit dem Hybridantriebsstrang ausgestatteten Kraftfahrzeugs hinsichtlich eines Manual transmission, which is manually operable by a driver, solved by an acoustic signaling device, which serves to make the driver acoustically aware of the need for a manual gear change. About the audible request for gear change, the driver of a equipped with the hybrid powertrain motor vehicle with respect to a
verbrauchsgünstigeren Fahrverhaltens beeinflusst werden. Das ist insbesondere dann hilfreich, wenn die Brennkraftmaschine, die in einem Kraftfahrzeug auch als Verbrennungsmotor bezeichnet wird, mit geringer Drehzahl betrieben wird oder ausgeschaltet ist. Der sekundäre Antrieb umfasst zum Beispiel mindestens eine elektrische Maschine. Der sekundäre Antrieb umfasst besonders bevorzugt mindestens eine Hydraulikmaschine. Der Hybridantriebsstrang mit der more fuel-efficient driving behavior are influenced. That is in particular then helpful if the internal combustion engine, which is also referred to as an internal combustion engine in a motor vehicle, is operated at low speed or is turned off. The secondary drive comprises, for example, at least one electric machine. The secondary drive particularly preferably comprises at least one hydraulic machine. The hybrid powertrain with the
Hydraulikmaschine als sekundären Antrieb wird auch als Hydraulic machine as a secondary drive is also called
Hydraulikhybridantriebsstrang bezeichnet. Hydraulic hybrid drivetrain referred.
Ein bevorzugtes Ausführungsbeispiel des Hybridantriebsstrangs ist dadurch gekennzeichnet, dass die akustische Signaleinrichtung mindestens einen Lautsprecher umfasst, der gezielt ein zusätzliches Geräusch erzeugt, das den Fahrer akustisch auf die Notwendigkeit eines manuellen Gangwechsels hinweist. Der Lautsprecher kann im Motorraum des Kraftfahrzeugs angeordnet sein und zum Beispiel ein Geräusch erzeugen, das dem realen Motorgeräusch entspricht. Alternativ oder zusätzlich kann der beziehungsweise ein weiterer Lautsprecher im Kraftfahrzeuginnenraum angeordnet sein. Der Lautsprecher ist vorzugsweise so im Motorraum und/oder im Fahrzeuginnenraum angeordnet, dass das mit dem Lautsprecher erzeugte zusätzliche Geräusch vom Fahrer deutlich A preferred embodiment of the hybrid powertrain is characterized in that the acoustic signaling device comprises at least one loudspeaker that selectively generates an additional noise, which indicates the driver acoustically to the need for a manual gear change. The loudspeaker can be arranged in the engine compartment of the motor vehicle and generate, for example, a sound that corresponds to the real engine noise. Alternatively or additionally, the or a further loudspeaker can be arranged in the motor vehicle interior. The loudspeaker is preferably arranged in the engine compartment and / or in the vehicle interior such that the additional noise generated by the loudspeaker is clear to the driver
wahrgenommen werden kann. Dabei kann vorteilhaft ein vorhandenes can be perceived. It can advantageously be an existing
Audiosystem genutzt werden, insbesondere ein Lautsprecher des vorhandenen Audiosystems auf der Fahrerseite. Audio system can be used, in particular a speaker of the existing audio system on the driver side.
Bei einem Verfahren zum Betreiben eines Hybridantriebsstrangs, der als primären Antrieb eine Brennkraftmaschine und einen sekundären Antrieb umfasst, mit einem Handschaltgetriebe, das durch einen Fahrer manuell betätigbar ist, insbesondere eines vorab beschriebenen Hybridantriebsstrangs, ist die oben angegebene Aufgabe alternativ oder zusätzlich dadurch gelöst, dass der Fahrer mit einem akustischen Signal akustisch auf die Notwendigkeit eines manuellen Gangwechsels aufmerksam gemacht wird. Das akustische Signal wird zum Beispiel über mindestens einen Lautsprecher erzeugt. Der Lautsprecher ist zum Beispiel im Motorraum oder im Fahrzeuginnenraum angeordnet. Durch das erfindungsgemäße Verfahren kann der Hybridantriebsstrang hinsichtlich In a method for operating a hybrid powertrain comprising as primary drive an internal combustion engine and a secondary drive, with a manual transmission, which is manually actuated by a driver, in particular a hybrid powertrain described above, the above object is alternatively or additionally achieved in that the driver is alerted acoustically to the necessity of a manual gear change with an acoustic signal. The acoustic signal is generated, for example, via at least one speaker. The loudspeaker is arranged, for example, in the engine compartment or in the vehicle interior. By the method according to the invention, the hybrid powertrain in terms of
Verbrauch und Wirkungsgrad mit einem Handschaltgetriebe optimal betrieben werden. Ein bevorzugtes Ausführungsbeispiel des Verfahrens ist dadurch Consumption and efficiency can be optimally operated with a manual transmission. A preferred embodiment of the method is characterized
gekennzeichnet, dass eine Grundfrequenz des akustischen Signals durch einen eingelegten Gang des Handschaltgetriebes bestimmt wird. Die Grundfrequenz des akustischen Signals wird verändert, um den Fahrer hinsichtlich eines verbrauchsgünstigeren Fahrverhaltens zu beeinflussen. characterized in that a fundamental frequency of the acoustic signal is determined by an engaged gear of the manual transmission. The fundamental frequency of the acoustic signal is changed to influence the driver in terms of a more fuel-efficient driving behavior.
Ein weiteres bevorzugtes Ausführungsbeispiel des Verfahrens ist dadurch gekennzeichnet, dass die Grundfrequenz des akustischen Signals proportional zu einer Fahrgeschwindigkeit gewählt wird. Dabei wird die Grundfrequenz des akustischen Signals vorzugsweise so gewählt, dass das akustische Signal den Geräuschcharakter eines herkömmlichen Antriebsstrangs hat, der als Antrieb nur einen Verbrennungsmotor umfasst und mit einem Handschaltgetriebe A further preferred embodiment of the method is characterized in that the fundamental frequency of the acoustic signal is selected in proportion to a driving speed. In this case, the fundamental frequency of the acoustic signal is preferably chosen so that the acoustic signal has the noise character of a conventional drive train, which includes only a combustion engine as a drive and with a manual transmission
ausgestattet ist. Is provided.
Ein weiteres bevorzugtes Ausführungsbeispiel des Verfahrens ist dadurch gekennzeichnet, dass der Fahrer durch eine mit der Fahrgeschwindigkeit zunehmende/abnehmende Frequenz des akustischen Signals auf die A further preferred embodiment of the method is characterized in that the driver by a with the driving speed increasing / decreasing frequency of the acoustic signal on the
Notwendigkeit hingewiesen wird, einen höheren/tieferen Gang einzulegen, und zwar unabhängig von einer Drehzahl der Brennkraftmaschine. Die Beeinflussung des Fahrers mit dem akustischen Signal ist besonders vorteilhaft, wenn die Brennkraftmaschine in dem Hybridantriebsstrang stillsteht, zum Beispiel in einem so genannten Segelbetrieb eines mit dem Hybridantriebsstrang ausgestatteten Kraftfahrzeugs. Need is noted to engage a higher / lower gear, regardless of a speed of the internal combustion engine. The influencing of the driver with the acoustic signal is particularly advantageous when the internal combustion engine is stationary in the hybrid drive train, for example in a so-called sailing operation of a motor vehicle equipped with the hybrid drive train.
Ein weiteres bevorzugtes Ausführungsbeispiel des Verfahrens ist dadurch gekennzeichnet, dass ein Geräuschpegel und/oder eine Amplitude des akustischen Signals angehoben oder abgesenkt wird, wenn zum Beispiel aufgrund einer Betriebsstrategie erkannt wird, dass mit einem anderen Gang des Handschaltgetriebes ein günstigerer Betriebspunkt darstellbar wäre. Mit dem akustischen Signal kann zum Beispiel akustisch ein untertouriges oder hochtouriges Fahren eines Kraftfahrzeugs mit einem herkömmlichen A further preferred exemplary embodiment of the method is characterized in that a noise level and / or an amplitude of the acoustic signal is raised or lowered, if, for example, it is recognized on the basis of an operating strategy that a more favorable operating point could be displayed with another gear of the manual transmission. With the acoustic signal, for example, acoustically a Untertertiges or high-speed driving a motor vehicle with a conventional
Antriebsstrang simuliert werden, der als Antrieb nur eine Brennkraftmaschine enthält und mit einem Handschaltgetriebe ausgestattet ist. Ein weiteres bevorzugtes Ausführungsbeispiel des Verfahrens ist dadurch gekennzeichnet, dass das akustische Signal den Betrieb der Brennkraftmaschine simuliert, und zwar auch dann, wenn die Brennkraftmaschine stillsteht. Dem Fahrer kann somit das Gefühl vermittelt werden, dass er mit einem Kraftfahrzeug fährt, das mit einem herkömmlichen Antriebsstrang ausgestattet ist, der als Antrieb nur die Brennkraftmaschine umfasst. Powertrain are simulated, which contains only one internal combustion engine as a drive and is equipped with a manual transmission. A further preferred embodiment of the method is characterized in that the acoustic signal simulates the operation of the internal combustion engine, even if the internal combustion engine is stationary. The driver can thus be given the feeling that he is driving with a motor vehicle that is equipped with a conventional drive train, which includes only the internal combustion engine as a drive.
Die Erfindung betrifft des Weiteren ein Computerprogrammprodukt mit einem Computerprogramm, das Softwaremittel zum Durchführen eines vorab beschriebenen Verfahrens aufweist, wenn das Computerprogramm auf einem Computer ausgeführt wird. Bei dem Computer handelt es sich zum Beispiel um ein Steuergerät, das in ein Kraftfahrzeug integriert ist. Das Steuergerät wird auch als elektrische Kontrolleinheit beziehungsweise elektronische Kontrolleinheit bezeichnet. The invention further relates to a computer program product comprising a computer program having software means for performing a previously described method when the computer program is executed on a computer. The computer is, for example, a control unit that is integrated in a motor vehicle. The control unit is also referred to as an electrical control unit or electronic control unit.
Die Erfindung betrifft darüber hinaus ein Steuergerät mit einem derartigen Computerprogrammprodukt. Das Steuergerät ist vorzugsweise in ein The invention further relates to a control device with such a computer program product. The control unit is preferably in a
Kraftfahrzeug eingebaut. Bei dem Kraftfahrzeug handelt es sich insbesondere um ein Hydraulikhybridfahrzeug mit einem vorab beschriebenen Motor vehicle installed. The motor vehicle is in particular a hydraulic hybrid vehicle with a previously described
Hydraulikhybridantrieb. Hydraulic hybrid drive.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnung verschiedene Ausführungsbeispiele im Einzelnen beschrieben sind. Further advantages, features and details of the invention will become apparent from the following description in which, with reference to the drawings, various embodiments are described in detail.
Kurze Beschreibung der Zeichnung Short description of the drawing
Es zeigen: eine vereinfachte Darstellung eines Hybridantriebsstrangs mit einem primären Antrieb und mit einem sekundären Antrieb, der an einen Getriebeausgang eines Handschaltgetriebes angebunden ist und Figur 2 einen ähnlichen Hybridantriebsstrang wie in Figur 1 mit einem sekundären Antrieb, der an einen Getriebeeingang eines It shows: a simplified representation of a hybrid powertrain with a primary drive and a secondary drive which is connected to a transmission output of a manual transmission and Figure 2 shows a similar hybrid powertrain as in Figure 1 with a secondary drive connected to a transmission input of a
Handschaltgetriebes angebunden ist. Manual gearbox is connected.
Beschreibung der Ausführungsbeispiele Description of the embodiments
In den Figuren 1 und 2 sind zwei Ausführungsbeispiele 1; 41 eines In Figures 1 and 2 are two embodiments 1; 41 one
erfindungsgemäßen Hybridantriebsstrangs vereinfacht dargestellt. Der inventive hybrid powertrain simplified shown. Of the
Hybridantriebsstrang 1; 41 dient zum Antrieb eines Kraftfahrzeugs mit angetriebenen Rädern 2, 5. Hybrid powertrain 1; 41 serves to drive a motor vehicle with driven wheels 2, 5.
Die angetriebenen Räder 2, 5 sind zum Beispiel über ein Differenzial 3 antriebsmäßig an den Hybridantriebsstrang 1; 41 angebunden. Der The driven wheels 2, 5 are, for example, via a differential 3 drivingly to the hybrid drive train 1; 41 tethered. Of the
Hybridantriebsstrang 1; 41 umfasst als primären Antrieb 4 eine Hybrid powertrain 1; 41 includes a primary drive 4 a
Brennkraftmaschine 6. Als sekundären Antrieb 10 umfasst der Internal combustion engine 6. As a secondary drive 10 includes the
Hybridantriebsstrang 1; 41 eine Hydraulikmaschine 11. Hybrid powertrain 1; 41 a hydraulic machine 11th
Die Hydraulikmaschine 11 des sekundären Antriebs 10 ist eingangsseitig hydraulisch mit einer Niederdruckseite 13 verbunden. Die Niederdruckseite 13 umfasst einen Niederdruckspeicher 14 mit Hydraulikmedium, das mit The hydraulic machine 11 of the secondary drive 10 is hydraulically connected to a low-pressure side 13 on the input side. The low pressure side 13 includes a low pressure accumulator 14 with hydraulic medium, which with
Niederdruck beaufschlagt ist. Low pressure is applied.
Ausgangsseitig ist die Hydraulikmaschine 11 hydraulisch mit einer On the output side, the hydraulic machine 11 is hydraulically with a
Hochdruckseite 16 verbunden. Die Hochdruckseite 16 umfasst einen High pressure side 16 connected. The high pressure side 16 includes a
Hydraulikspeicher 17, der als Hochdruckspeicher ausgeführt ist und Hydraulic accumulator 17, which is designed as a high-pressure accumulator and
Hydraulikmedium enthält, das mit Hochdruck beaufschlagt ist. Contains hydraulic medium, which is subjected to high pressure.
Zwischen den Ausgang der Hydraulikmaschine 11 und den Hochdruckspeicher 17 ist eine Ventileinrichtung 18 geschaltet. Bei der Ventileinrichtung 18 handelt es sich zum Beispiel um ein Speicherladeventil. Between the output of the hydraulic machine 11 and the high-pressure accumulator 17, a valve device 18 is connected. The valve device 18 is, for example, a storage charging valve.
Der Hybridantriebsstrang 1; 41 umfasst des Weiteren ein Handschaltgetriebe 20, das auch als manuelles Schaltgetriebe bezeichnet wird. Das Handschaltgetriebe 20 ist in dem Hybridantriebsstrang 1; 41 zwischen der Brennkraftmaschine 6 und dem Differenzial 3 angeordnet. Eine Kupplung 23 ist zwischen der Brennkraftmaschine 6 und dem The hybrid powertrain 1; 41 further includes a manual transmission 20, also referred to as a manual transmission. The manual transmission 20 is in the hybrid powertrain 1; 41 is arranged between the internal combustion engine 6 and the differential 3. A clutch 23 is between the engine 6 and the
Handschaltgetriebe 20 angeordnet. Eine Kupplung 24 ist der Hydraulikmaschine 11 zugeordnet. Manual transmission 20 is arranged. A clutch 24 is assigned to the hydraulic machine 11.
Bei dem in Figur 1 dargestellten Hybridantriebsstrang 1 ist der sekundäre Antrieb 10 mit der Hydraulikmaschine 11 unter Zwischenschaltung der Kupplung 24 an einen Getriebeausgang des Handschaltgetriebes 20 angebunden. Die Anbindung des sekundären Antriebs 10 erfolgt über eine Übersetzungsstufe 22, die zwischen dem Handschaltgetriebe 20 und dem Differenzial 3 angeordnet ist. In the hybrid drive train 1 shown in Figure 1, the secondary drive 10 is connected to the hydraulic machine 11 with the interposition of the clutch 24 to a transmission output of the manual transmission 20. The connection of the secondary drive 10 via a translation stage 22, which is arranged between the manual transmission 20 and the differential 3.
Bei dem in Figur 2 dargestellten Hybridantriebsstrang 41 ist der sekundäre Antrieb 10 mit der Hydraulikmaschine 11 unter Zwischenschaltung der Kupplung 24 an einen Getriebeeingang des Handschaltgetriebes 20 angebunden. Die Anbindung des sekundären Antriebs 10 erfolgt über eine Übersetzungsstufe 22, die zwischen der Kupplung 23 und dem Handschaltgetriebe 20 angeordnet ist. In the hybrid drive train 41 shown in FIG. 2, the secondary drive 10 is connected to the hydraulic machine 11 with the interposition of the clutch 24 to a transmission input of the manual transmission 20. The connection of the secondary drive 10 via a translation stage 22, which is arranged between the clutch 23 and the manual transmission 20.
Der Hybridantriebsstrang 1 in Figur 1 kann in unterschiedlichen The hybrid powertrain 1 in Figure 1 can in different
Betriebszuständen betrieben werden. In einem Rekuperationsbetrieb kann Bremsenergie in den Hydraulikspeicher 17 rekuperiert werden. Aus dem Operating conditions are operated. In a recuperation operation braking energy can be recuperated in the hydraulic accumulator 17. From the
Hydraulikspeicher 17 kann bedarfsabhängig ein Beschleunigungsmoment bereitgestellt werden. Hydraulic accumulator 17, an acceleration torque can be provided depending on demand.
Über die Kupplung 23 kann die Brennkraftmaschine 6, die auch als About the clutch 23, the internal combustion engine 6, which also as
Verbrennungsmotor bezeichnet wird, von dem Hybridantriebsstrang 1 entkoppelt werden. Der Hybridantriebsstrang 1 kann rein hydraulisch betrieben werden. Internal combustion engine is called to be decoupled from the hybrid powertrain 1. The hybrid powertrain 1 can be operated purely hydraulically.
Der Hybridantriebsstrang 1 kann auch nur mit der Brennkraftmaschine 6 angetrieben werden. Dann wird die Hydraulikmaschine 11 über die Kupplung 24 von dem Hybridantriebsstrang 1 entkoppelt. Mit dem Handschaltgetriebe 20 erfolgt die Gangwahl im Betrieb des Hybridantriebsstrangs 1 manuell durch den Fahrer. The hybrid powertrain 1 can also be driven only with the internal combustion engine 6. Then, the hydraulic machine 11 is decoupled from the hybrid powertrain 1 via the clutch 24. With the manual transmission 20, the gear selection takes place during operation of the hybrid drive train 1 manually by the driver.
Der in Figur 2 dargestellte Hybridantriebsstrang 41 kann genauso betrieben werden wie der in Figur 1 dargestellte Hybridantriebsstrang 1. Allerdings können die Hybridkomponenten des in Figur 2 dargestellten Hybridantriebsstrangs 41 gegebenenfalls vorteilhaft ausgelegt werden, insbesondere im Hinblick auf Baugröße und Drehzahlbereich. The hybrid drive train 41 shown in FIG. 2 can be operated in exactly the same way as the hybrid drive train 1 illustrated in FIG. 1. However, the hybrid components of the hybrid drive train 41 illustrated in FIG optionally be designed advantageously, especially in terms of size and speed range.
In den Figuren 1 und 2 ist durch einen Kreis 30; 50 eine akustische In FIGS. 1 and 2, a circle 30; 50 an acoustic
Signaleinrichtung angedeutet, die dazu dient, den Fahrer eines mit dem Signal device indicated, which serves the driver of the with the
Hybridantriebsstrang 1; 41 ausgestatteten Hybridfahrzeugs akustisch auf die Notwendigkeit eines manuellen Gangwechsels aufmerksam zu machen. Hybrid powertrain 1; 41 equipped hybrid vehicle to draw attention to the need for a manual gear change.
Je nach Betriebsstrategie ist ein Gangwechsel auch bei gestopptem Depending on the operating strategy, a gear change is also stopped
Verbrennungsmotor 6 oder geringer Verbrennungsmotor-Drehzahl erforderlich. Ein solcher durch den Fahrer vorzunehmender Gangwechsel kann dem Fahrer mit der erfindungsgemäßen akustischen Signaleinrichtung 30; 50 auf einfache Art und Weise signalisiert werden. Internal combustion engine 6 or low engine speed required. Such a change of gear to be made by the driver can provide the driver with the inventive acoustic signal device 30; 50 be signaled in a simple manner.
Mit der akustischen Signaleinrichtung 30; 50 kann in einem Fahrgastraum des mit dem Hybridantriebsstrang 1; 41 ausgestatteten Fahrzeugs über mindestens einen Lautsprecher gezielt ein zusätzliches Geräusch erzeugt werden. Die Frequenzinhalte des zusätzlichen Geräuschs sind unabhängig von einer tatsächlichen Drehzahl des Verbrennungsmotors 6. With the acoustic signal device 30; 50 may in a passenger compartment of the hybrid powertrain 1; 41 equipped vehicle via at least one speaker targeted an additional noise generated. The frequency contents of the additional noise are independent of an actual rotational speed of the internal combustion engine 6.
Mit der akustischen Signaleinrichtung 30; 50 wird dem Fahrer unabhängig von der tatsächlichen Drehzahl des Verbrennungsmotors 6 durch ein simuliertes, zum Beispiel hochtouriges Antriebsgeräusch ein erforderlicher Gangwechsel, also ein Hochschalten des Handschaltgetriebes 20, signalisiert. Durch ein niedertouriges Antriebsgeräusch wird dem Fahrer ein Wechsel in einem kleineren Gang, also ein Runterschalten des Handschaltgetriebes 20, signalisiert. With the acoustic signal device 30; 50 is the driver regardless of the actual speed of the engine 6 by a simulated, for example, high-speed drive noise a required gear change, ie an upshift of the manual transmission 20, signals. By a low-speed drive noise to the driver a change in a smaller gear, so a downshifting of the manual transmission 20 is signaled.
Eine Grundfrequenz des akustischen Signals beziehungsweise des zusätzlichen Geräuschs wird durch einen aktuell eingelegten Gang bestimmt und ist proportional zu der aktuellen Fahrgeschwindigkeit. Mit der Grundfrequenz wird ein akustisches Signal oder zusätzliches Geräusch erzeugt, das dem A fundamental frequency of the acoustic signal or the additional noise is determined by a currently engaged gear and is proportional to the current driving speed. At the fundamental frequency, an audible signal or additional noise is generated, which corresponds to the
Geräuschcharakter eines üblichen Schaltgetriebe- Antriebsstrangs entspricht. Noise character of a conventional transmission drive train corresponds.
Bei zunehmender Fahrgeschwindigkeit nimmt die Frequenz zu und der Fahrer kann durch die akustische Wahrnehmung bei einer entsprechend hohen/tiefen Frequenz die Erfordernisse eines Gangwechsels zu einem höheren/niedrigeren Gang erkennen. As the driving speed increases the frequency increases and the driver can by the acoustic perception at a corresponding high / low Frequency recognize the requirements of a gear change to a higher / lower gear.
Erkennt die Betriebsstrategie, dass ein anderer Gang einen günstigeren The operating strategy recognizes that another gear is a cheaper one
Betriebspunkt darstellen würde, kann dies zusätzlich durch eine Anhebung oder eine Absenkung des Geräuschpegels beziehungsweise der Amplitude angezeigt werden. Insbesondere bei gestopptem Verbrennungsmotor kann die This could also be displayed by raising or lowering the noise level or the amplitude. Especially when stopped combustion engine, the
Gangwechselindikation auch durch eine zusätzlich angehobene Gangwechselindikation also by an additionally raised
beziehungsweise abgesenkte Frequenz angezeigt werden, so dass der Fahrer die besondere Dringlichkeit eines Gangwechsels erkennt. Das eingespielte Geräusch beziehungsweise Signal simuliert den Betrieb des or lowered frequency are displayed so that the driver recognizes the particular urgency of a gear change. The recorded noise or signal simulates the operation of the
Verbrennungsmotors insbesondere auch dann, wenn dieser gestoppt ist. Internal combustion engine especially when it is stopped.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014205329.3 | 2014-03-21 | ||
| DE102014205329.3A DE102014205329A1 (en) | 2014-03-21 | 2014-03-21 | Hybrid powertrain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015139909A1 true WO2015139909A1 (en) | 2015-09-24 |
Family
ID=52589366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2015/053468 Ceased WO2015139909A1 (en) | 2014-03-21 | 2015-02-19 | Hybrid drive-train |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102014205329A1 (en) |
| WO (1) | WO2015139909A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017203798A1 (en) | 2017-03-08 | 2018-09-13 | Bayerische Motoren Werke Aktiengesellschaft | Control device in a motor vehicle for issuing a gearshift recommendation |
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|---|---|---|---|---|
| US4622637A (en) * | 1982-10-04 | 1986-11-11 | Toyota Jidosha Kabushiki Kaisha | Optimum shift timing indicating device for a vehicle |
| EP1068976A2 (en) * | 1999-07-15 | 2001-01-17 | Honda Giken Kogyo Kabushiki Kaisha | Shift position indicating device for hybrid vehicle |
| FR2961753A1 (en) * | 2010-06-23 | 2011-12-30 | Peugeot Citroen Automobiles Sa | Traction chain for hybrid vehicle, has planetary gear whose crown is connected to thermal engine, solar pinion with inlet shaft and satellite carriers with hydraulic machine, and brake immobilizing crown of planetary gear |
| US8320581B2 (en) | 2010-03-03 | 2012-11-27 | Bose Corporation | Vehicle engine sound enhancement |
| FR2979314A1 (en) * | 2011-08-26 | 2013-03-01 | Peugeot Citroen Automobiles Sa | Method for managing sound environment in passenger compartment of motor vehicle, involves generating noise perceived in passenger compartment of motor vehicle similar to noise generated by engine in thermal engine operating mode |
| EP2574829A1 (en) * | 2010-04-28 | 2013-04-03 | Toyota Jidosha Kabushiki Kaisha | Gear shift instruction system for vehicles |
| FR2989141A1 (en) * | 2012-04-06 | 2013-10-11 | Peugeot Citroen Automobiles Sa | Method for assisting management of transmission system of hybrid car, involves signaling destination for driver by sound and/or visual message by transition of speed ratio to neutral speed ratio for charging storage device |
| US20130294619A1 (en) * | 2012-05-02 | 2013-11-07 | GM Global Technology Operations LLC | Engine Sound Enhancement ("ESE") System for a Continuously Variable Transmission ("CVT") Equipped Vehicle |
-
2014
- 2014-03-21 DE DE102014205329.3A patent/DE102014205329A1/en not_active Withdrawn
-
2015
- 2015-02-19 WO PCT/EP2015/053468 patent/WO2015139909A1/en not_active Ceased
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4622637A (en) * | 1982-10-04 | 1986-11-11 | Toyota Jidosha Kabushiki Kaisha | Optimum shift timing indicating device for a vehicle |
| EP1068976A2 (en) * | 1999-07-15 | 2001-01-17 | Honda Giken Kogyo Kabushiki Kaisha | Shift position indicating device for hybrid vehicle |
| US8320581B2 (en) | 2010-03-03 | 2012-11-27 | Bose Corporation | Vehicle engine sound enhancement |
| EP2574829A1 (en) * | 2010-04-28 | 2013-04-03 | Toyota Jidosha Kabushiki Kaisha | Gear shift instruction system for vehicles |
| FR2961753A1 (en) * | 2010-06-23 | 2011-12-30 | Peugeot Citroen Automobiles Sa | Traction chain for hybrid vehicle, has planetary gear whose crown is connected to thermal engine, solar pinion with inlet shaft and satellite carriers with hydraulic machine, and brake immobilizing crown of planetary gear |
| FR2979314A1 (en) * | 2011-08-26 | 2013-03-01 | Peugeot Citroen Automobiles Sa | Method for managing sound environment in passenger compartment of motor vehicle, involves generating noise perceived in passenger compartment of motor vehicle similar to noise generated by engine in thermal engine operating mode |
| FR2989141A1 (en) * | 2012-04-06 | 2013-10-11 | Peugeot Citroen Automobiles Sa | Method for assisting management of transmission system of hybrid car, involves signaling destination for driver by sound and/or visual message by transition of speed ratio to neutral speed ratio for charging storage device |
| US20130294619A1 (en) * | 2012-05-02 | 2013-11-07 | GM Global Technology Operations LLC | Engine Sound Enhancement ("ESE") System for a Continuously Variable Transmission ("CVT") Equipped Vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017203798A1 (en) | 2017-03-08 | 2018-09-13 | Bayerische Motoren Werke Aktiengesellschaft | Control device in a motor vehicle for issuing a gearshift recommendation |
| WO2018162299A1 (en) | 2017-03-08 | 2018-09-13 | Bayerische Motoren Werke Aktiengesellschaft | Control device in a motor vehicle for outputting a gear-shift recommendation |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102014205329A1 (en) | 2015-09-24 |
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