WO2012150088A1 - Procédé pour faire fonctionner une chaîne cinématique d'un véhicule hybride - Google Patents

Procédé pour faire fonctionner une chaîne cinématique d'un véhicule hybride Download PDF

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Publication number
WO2012150088A1
WO2012150088A1 PCT/EP2012/054850 EP2012054850W WO2012150088A1 WO 2012150088 A1 WO2012150088 A1 WO 2012150088A1 EP 2012054850 W EP2012054850 W EP 2012054850W WO 2012150088 A1 WO2012150088 A1 WO 2012150088A1
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WO
WIPO (PCT)
Prior art keywords
hybrid
operating mode
charge
state
operating
Prior art date
Application number
PCT/EP2012/054850
Other languages
German (de)
English (en)
Inventor
Markus Eisele
Yvonne WIEGANG
Bert Hellwig
Original Assignee
Zf Friedrichshafen Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zf Friedrichshafen Ag filed Critical Zf Friedrichshafen Ag
Priority to EP12710915.5A priority Critical patent/EP2704936A1/fr
Publication of WO2012150088A1 publication Critical patent/WO2012150088A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • B60W20/11—Controlling the power contribution of each of the prime movers to meet required power demand using model predictive control [MPC] strategies, i.e. control methods based on models predicting performance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • 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
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/28—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
    • B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • 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
    • B60W20/12—Controlling the power contribution of each of the prime movers to meet required power demand using control strategies taking into account route information
    • 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
    • B60W50/082—Selecting or switching between different modes of propelling
    • 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
    • B60W50/085—Changing the parameters of the control units, e.g. changing limit values, working points by control input
    • 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
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/16—Type of output information
    • B60K2360/172—Driving mode indication
    • 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
    • B60W2050/146—Display means
    • 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
    • B60W2540/00—Input parameters relating to occupants
    • B60W2540/215—Selection or confirmation of options
    • 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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/24—Energy storage means
    • B60W2710/242—Energy storage means for electrical energy
    • B60W2710/244—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

Definitions

  • the invention relates to a method for operating a drive train of a hybrid vehicle according to the preamble of claim 1. Furthermore, the invention relates to a control device for carrying out the method.
  • Hybrid vehicles the drive unit comprising an electric machine and an internal combustion engine
  • hybrid vehicles can be operated purely electrically in an electric operating mode, in which case only the electric machine of the hybrid vehicle at an output of the same provides an output torque.
  • hybrid vehicles can be operated in a hybrid mode of operation, in which case both the electric machine and the internal combustion engine of the hybrid vehicle at the output provides an output torque.
  • the electric machine of such a hybrid vehicle can be operated on the one hand by a motor and on the other hand by a generator, wherein in the motor operation of the electric machine the same one more discharges an electrical energy store of the hybrid vehicle and charges it more in regenerative operation.
  • the present invention based on the object to provide a novel method for operating a drive train of a hybrid vehicle and a control device for carrying out the method.
  • a hybrid preparation operating mode with an extended permissible charge state operating range of the electrical energy store is automatically activated by a driver-side actuation of an operating element in preparation for an electric operation mode or hybrid operating mode related to the driver-side actuation of the operating element after a defined travel distance or driving time, wherein in the hybrid preparation operating mode the electric machine and the internal combustion engine are operated automatically such that, after the defined travel distance or travel time, the charge state of the electrical energy store automatically corresponds to an extended limit value of the extended permissible charge state operating range.
  • the method according to the invention runs automatically after a driver-side release by actuation of a control element.
  • the hybrid vehicle according to the invention thus comes without GPS system and navigation system. Furthermore, it is not necessary to pre-measure a route by departing the same and to save corresponding route data. Rather, after the driver-side actuation, a hybrid preparation mode of operation is automatically activated and selected for the operation of the hybrid vehicle, with the hybrid preparation mode of operation providing an extended allowable state of charge operating range for the electrical energy storage over the previous hybrid mode or electric mode.
  • the powertrain is automatically operated such that after the defined cruise distance or drive duration after activation of the hybrid preparation mode, the state of charge of the electrical energy store automatically corresponds to an extended, upper or extended lower limit of the extended, allowable state of charge operating range of the electrical energy store.
  • the hybrid vehicle can be adapted or prepared for an electric operating mode or subsequent hybrid operating mode following the hybrid preparation operating mode without knowledge of topographical travel route data.
  • a charging state of the electrical energy store that forms is automatically monitored in such a way that if a defined travel distance or time interval is detected before the defined travel distance or travel time expires, the charge state of the electrical energy store is the upper limit value has not yet reached or will not reach the extended allowable state of charge operating range, a load point boost is automatically made to the internal combustion engine.
  • This development of the invention is particularly suitable for adapting or preparing the hybrid vehicle to an electric operating mode for a zero emission travel path following the hybrid preparation operating mode or to a subsequent hybrid operating mode for uphill driving or for a subsequent hybrid operating mode with power takeoff activation.
  • a charging state of the electrical energy store that forms is automatically monitored such that when a defined travel distance or time interval is detected before the defined travel distance or travel time expires, the charge state of the electrical energy store is extended Lower limit of the extended allowable state of charge operating range has not yet reached or will not reach automatically a load point reduction is made for the internal combustion engine.
  • This development of the invention is particularly suitable for adapting the hybrid vehicle to an electric operating mode or hybrid operating mode for a downhill following the hybrid preparation operating mode.
  • the defined driving distance or driving time of the hybrid preparation operating mode is automatically determined when the operator controls the driving element, with a constant driving distance or driving time or a variable driving distance or driving time depending on an operating time or operating frequency of the operating element being used as the defined driving distance or driving time of the hybrid preparation operating mode.
  • the above determination of the defined travel distance or travel time of the hybrid preparation operating mode, within which the electrical state of charge of the electrical energy store is to adopt the extended limit value of the extended state of charge operating range, is particularly simple and preferred.
  • the control device according to the invention has means for carrying out the method according to the invention.
  • Fig. 1 is an exemplary diagram of a hybrid vehicle
  • 2 shows a diagram to illustrate the method according to the invention for operating a drive train of a hybrid vehicle.
  • the present invention relates to a method for operating a drive train of a hybrid vehicle and to a control device for carrying out the method.
  • FIG. 1 shows in highly schematized form a drive train diagram of a hybrid vehicle with a drive unit 1, which comprises an internal combustion engine 2 and an electric machine 3.
  • a transmission 5 is connected, which is preferably designed as an automatic or automated manual transmission.
  • a clutch 6 is connected between the engine 2 and the electric machine 3 of the drive unit 1.
  • the clutch 6 is open, the internal combustion engine 2 is decoupled from the output 4, in which case the internal combustion engine 2 is stopped when the clutch 6 is open and the drive train can be driven purely electrically in an electric mode starting from the electric machine 3.
  • the clutch 6 is closed, in which case the internal combustion engine 2 runs in the hybrid operating mode and is coupled to the output 4 through the closed clutch 6.
  • the electric machine 3 of the drive unit 1 is associated with an electrical energy storage 7.
  • the electric energy storage 7 is in the motor operation of the electric machine 3 of the same more dischargeable and in regenerative operation of the electric machine 3 of the same more rechargeable.
  • the operation of the internal combustion engine 1 is controlled or regulated in the drive train of FIG. 1 by a motor control device 8.
  • the drive train comprises a transmission control device 9.
  • a hybrid control device 10 controls the operation of the electric machine 3.
  • the control devices 8, 9 and 10 exchange data with the components 2, 3 and 5 in the sense of the double arrows, the control device 8, 9 and 10 exchange data with each other.
  • hybrid control device 10 may also be part of the transmission control device 9 or the engine control device 8.
  • This hybrid preparation mode of operation is characterized by an extension of the allowable state of charge operating range of the electric energy storage.
  • an upper limit of the state of charge operation range is shifted upward or a lower limit of the state of charge operation range downward, respectively.
  • the electric machine 3 and the internal combustion engine 2 of the drive unit 1 are then automatically operated in such a way that the charge state of the electrical energy store 7 automatically corresponds to an extended limit value of the extended, permissible charge state operating range of the electrical energy store 7 after the defined travel distance or journey time of the hybrid preparation operating mode that is, either the upper limit shifted up or the lower limit of the state of charge operating range shifted down.
  • the method according to the invention accordingly prepares a drive train, in particular the state of charge of an electrical energy accumulator 7 of the drive train, triggered by a driver-side actuation of the operating element 11 fully automatic on a subsequent electric operating mode or hybrid operating mode, namely such that with termination of the hybrid preparation operating mode and thus with the beginning of the subsequent electrical operating mode or hybrid mode of operation, the state of charge of the electrical energy storage 7 corresponds to a limit of the extended, permissible state of charge operating range of the electrical energy store 7 extended or shifted for the hybrid preparation operating mode.
  • FIG. 2 in which over the time t o- over a distance s the state of charge SOC of the electrical energy store 7 is plotted, at a time tO or at a distance sO by driver-side actuation of the control element 1 1 automatically the hybrid Preparing mode activated and this automatically raised an upper limit SOC-MAX of the permissible state of charge operating range of the electric energy storage device 7 to the extended upper limit SOC-MAX-E.
  • the internal combustion engine 2 and the electric machine 3 are operated automatically in particular in a controlled manner by the hybrid control device 10 which serves to carry out the method according to the invention in that, based on the driver-side actuation of the operating element 11 at the time t0 or the distance sO after a defined travel time At1 or after a defined driving distance As1, the state of charge SOC of the electrical energy store 7 automatically follows the extended, upper limit value SOC-MAX. E of the extended, permissible state of charge operating range of the electrical energy store 7 corresponds.
  • a chronological course or route-dependent course of the state of charge SOC is formed starting from an initial value SOC-0 of the state of charge at the time t0 or the distance sO, namely, at the end of the preparatory operating mode, when the travel time At1 has elapsed or when the driving distance As1 has been completed, the raised, upper limit value SOC-MAX-E of the extended, permissible charge state operating range of the electrical energy store 7 has been reached.
  • the developing state of charge SOC of the electrical energy storage device 7 is monitored automatically such that when it is detected that a defined path distance As2 or a defined time interval At2 before the defined driving distance As1 or the defined travel time At1 the charge state SOC of the electric energy store 7 has not yet reached or will not reach the extended, upper limit value of the extended, permissible charge state operating range, a load point increase for the internal combustion engine 2 is automatically carried out, so that the Charging state SOC of the electric energy storage device 7 reaches the upwardly extended or raised limit value SOC-MAX-E after expiry of the defined travel distance As1 or the defined travel time At1 with the assistance of the internal combustion engine.
  • the previously raised or extended upper limit of the permissible state of charge operating range is again reduced during the subsequent change to the prepared electrical operating mode for the zero emission travel distance and preferably based on this operating mode change, the 2 at the time t1 or to the driving position s1, the lower limit value of the permissible state of charge operating range is lowered for a defined travel distance or travel duration in order to ensure purely electrical operation of the hybrid vehicle via the electric machine 3 during the entire electric operating mode of the zero emission travel path to ensure electrical energy storage 7.
  • the defined travel distance As1 or travel time At1 of the hybrid preparation operating mode is automatically determined by the driver implementing the method control device, in the embodiment shown by the hybrid control device 10 at driver side actuation of the control element.
  • a constant travel distance or driving time is used and selected as defined travel distance As1 or travel time At1 of the hybrid preparation operating mode, which is constant for each actuation of the corresponding operating element 11.
  • a variable travel distance As1 or travel duration At1 that is dependent on an actuation duration or actuation frequency of the operating element 1 1 as the defined travel distance As1 or travel time At1 of the hybrid preparation operating mode.
  • an increment for the defined travel distance As1 or travel time At1 of the hybrid preparation operating mode is stored in the hybrid control device 10.
  • the hybrid preparation mode of operation for preparing the subsequent electric operation mode for a zero emission route it can be provided, for example, that with simple actuation of the control element 1 1 as cruise As1 of the hybrid preparation mode of operation, a 200m route is used which, on double actuation of the control element, uses a route As1 of 400m is used that with triple actuation a distance As1 of 600m is used and that with n-times operation of the operating element a route As1 is used, which is nx200m.
  • the method according to the invention is not limited to the preparation of an electric operating mode for a zero emission travel route. Rather, with the method according to the invention or the control device according to the invention, a hybrid operating mode for uphill driving or a hybrid operating mode with a power take-off activation, which is also referred to as PTO activation, can be carried out.
  • the state of charge of the electrical energy store is then automatically raised accordingly during the preparatory mode of operation, so that for the subsequent uphill, in which we niger recuperation energy can be obtained, a sufficient state of charge of the electrical energy storage 7 is present.
  • An analogous procedure is possible for preparing a hybrid vehicle via the hybrid preparation operating mode, which is automatically activated after driver-side actuation of a control element 1 1, to a subsequent hybrid drive in hybrid operating mode with activated PTO or power take-off or activated PTO.
  • a power take-off may be, for example, a cooling loader of a truck or other power take-off.
  • the state of charge of the electrical energy store 7 is preferably automatically monitored in such a way that, when it is determined that a defined travel distance or time interval before the expiration of a defined driving distance or driving time of the hybrid preparation operating mode, the state of charge is extended, lower Limit value has not yet reached or will not reach automatically a load point reduction is made for the internal combustion engine, so that the electrical energy storage 3 is discharged more strongly via the electric machine 3, so then the subsequent transition to the Elektro istsmo- dus or hybrid mode for the downhill, the recuperation potential the mountain departure ahead of the hybrid vehicle can be fully exploited.
  • the upper limit of the state of charge operating range can be raised in order to fully exploit the recuperation potential.
  • the driver may visualize an activation of the hybrid preparation operating mode, which is automatically activated in the case of a driver-side actuation of the operating element 11, via a display device 12. Further, the driver may be notified of an imminent end of the hybrid preparation mode of operation via this indicator 12 so that the operator may adjust to an operating mode change from the preparatory mode to the subsequent electric mode or subsequent hybrid mode.
  • control element 1 1 may be provided to provide a separate control element 1 1 for each electric operating mode or hybrid operating mode to be prepared. Furthermore, provision can be made for providing a common operating element 11 for operating modes to be prepared in the same direction in relation to the state of charge of the electrical energy store in the sense of greater charging or boosting of the electrical energy store.
  • the control device according to the invention is preferably a hybrid control device.
  • the same has means for carrying out the method according to the invention, in particular interfaces for direct or indirect, unidirectional or bidirectional data exchange with the control element 1 1 and / or the electric machine 3 and / or the electric energy storage 7 and / or the internal combustion engine 2 and / or the Display device 12 and / or the coupling 6, as well as software and / or hardware-side means for evaluation and generation of corresponding, the implementation of the method serving data signals.
  • An indirect data exchange takes place via interposition of another control device.
  • the extended limit values for the extended charge state operating range of the electrical energy store in the preparation operating mode as well as the defined travel distances or driving times As1, At1, As2, At2 of the preparation operating mode and optionally increments for the defined travel distances or driving times As1, At1 of the preparation operating mode are preferably stored in a memory of the control device according to the invention and freely applicable via an interface.

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

Abstract

L'invention concerne un procédé pour faire fonctionner une chaîne cinématique d'un véhicule hybride, équipé d'un groupe d'entraînement (1), comprenant une machine électrique (3) et un moteur à combustion interne (2), et d'un accumulateur d'énergie électrique (7). L'accumulateur d'énergie électrique est déchargé plus fortement lors du fonctionnement du moteur de la machine électrique et chargé plus fortement lors du fonctionnement de génération. Un couple de sortie, dépendant d'un mode de fonctionnement choisi, dans un mode de fonctionnement électrique exclusivement via la machine électrique (3) ou dans un mode de fonctionnement hybride, tant via la machine électrique que via le moteur à combustion interne (2), est mis à disposition à la sortie (4) à chaque fois en respectant une plage de fonctionnement de l'état de charge de l'accumulateur d'énergie électrique (7). Un mode de fonctionnement préparatoire hybride dans une plage de fonctionnement élargie de l'état de charge de l'accumulateur d'énergie électrique est activé, déclenché par un actionnement par le chauffeur d'un élément de commande, en vue de la préparation à un mode de fonctionnement électrique ou à un mode de fonctionnement hybride après une longueur ou une durée de conduite définie par rapport à l'actionnement par le chauffeur de l'élément de commande. Dans le mode de fonctionnement préparatoire, la machine électrique et le moteur à combustion interne sont exploités de manière telle qu'après la longueur ou la durée de conduite définie, l'état de charge de l'accumulateur d'énergie électrique (7) correspond à une valeur limite élargie de la plage de fonctionnement élargie de l'état de charge.
PCT/EP2012/054850 2011-05-03 2012-03-20 Procédé pour faire fonctionner une chaîne cinématique d'un véhicule hybride WO2012150088A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12710915.5A EP2704936A1 (fr) 2011-05-03 2012-03-20 Procédé pour faire fonctionner une chaîne cinématique d'un véhicule hybride

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