WO2009077317A2 - Procédé et dispositif pour faire fonctionner un groupe motopropulseur hybride d'un véhicule - Google Patents

Procédé et dispositif pour faire fonctionner un groupe motopropulseur hybride d'un véhicule Download PDF

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Publication number
WO2009077317A2
WO2009077317A2 PCT/EP2008/066595 EP2008066595W WO2009077317A2 WO 2009077317 A2 WO2009077317 A2 WO 2009077317A2 EP 2008066595 W EP2008066595 W EP 2008066595W WO 2009077317 A2 WO2009077317 A2 WO 2009077317A2
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WO
WIPO (PCT)
Prior art keywords
internal combustion
combustion engine
speed
electric machine
transmission input
Prior art date
Application number
PCT/EP2008/066595
Other languages
German (de)
English (en)
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WO2009077317A3 (fr
Inventor
Christian Mittelberger
Stefan Blattner
Original Assignee
Zf Friedrichshafen Ag
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Application filed by Zf Friedrichshafen Ag filed Critical Zf Friedrichshafen Ag
Publication of WO2009077317A2 publication Critical patent/WO2009077317A2/fr
Publication of WO2009077317A3 publication Critical patent/WO2009077317A3/fr

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    • 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
    • B60W20/30—Control strategies involving selection of transmission gear ratio
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18—Propelling the vehicle
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • B60W30/18027—Drive off, accelerating from standstill
    • 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
    • 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
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • 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
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • 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
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B60W10/11—Stepped gearings
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • 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
    • B60K6/22—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 apparatus, components or means specially adapted for HEVs
    • B60K6/26—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 apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B60K2006/268—Electric drive motor starts the engine, i.e. used as starter motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/421—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/44—Drive Train control parameters related to combustion engines
    • B60L2240/441—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/48—Drive Train control parameters related to transmissions
    • B60L2240/486—Operating parameters
    • 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
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/10—Change speed gearings
    • B60W2510/104—Output 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
    • B60W2520/00—Input parameters relating to overall vehicle dynamics
    • B60W2520/10—Longitudinal speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/06—Combustion engines, Gas turbines
    • B60W2710/0644—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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/08—Electric propulsion units
    • B60W2710/081—Speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/0862—Circuits or control means specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery
    • F02N11/0866—Circuits or control means specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery comprising several power sources, e.g. battery and capacitor or two batteries
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N2300/00—Control related aspects of engine starting
    • F02N2300/10—Control related aspects of engine starting characterised by the control output, i.e. means or parameters used as a control output or target
    • F02N2300/102—Control of the starter motor speed; Control of the engine speed during cranking
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

Definitions

  • the invention relates to a method and a device for operating a hybrid vehicle according to the preamble of patent claim 1 and of patent claim 10.
  • Hybrid powertrains are becoming increasingly important in vehicle construction due to their potential for reducing pollutant emissions and energy consumption.
  • Such vehicles have various types of power sources, in particular combinations of combustion and electric motors are advantageous because they on the one hand the range and performance advantages of internal combustion engines and on the other hand, the flexible uses of electrical machines as a sole or Hilfsanthebs provoke or as a starter generator and generator for power generation and Recuperation can use.
  • Hybrid powertrains are demanded by the market, which can be implemented in vehicles as far as possible without additional space requirements, with the least possible complexity and with low cost and design effort.
  • the prime movers are connected in series.
  • the internal combustion engine for example a diesel engine
  • the vehicle is thus driven exclusively by the electric machine.
  • the internal combustion engine is decoupled from the drive wheels and can therefore be operated continuously in a single operating point, ie at a certain torque and constant speed.
  • This drive concept zept is suitable, for example, for buses in urban short-distance traffic, wherein preferably an operating point in which the efficiency of the internal combustion engine is as high as possible and at the same time pollutant emissions, fuel consumption and noise are in a favorable range is set.
  • it is unfavorable for the series hybrid that the efficiency of the drive is limited due to the mechanical-electrical multiple conversion.
  • Parallelhybrid-Anthebstrlinde by parallel with respect to the power flow arrangement of the drive train aggregates in addition to the superposition of drive torque, so a mixed drive, also the possibility of driving with purely internal combustion engine drive or purely electromotive, briefly called electrical, drive.
  • the internal combustion engine can be largely operated at optimum torque by respectively loading or supporting by means of one or more electric machines, so that the maximum efficiency of the internal combustion engine can be effectively utilized.
  • the electrical support of the internal combustion engine reduces on average the fuel consumption.
  • the electric machine can also act as an integrated starter generator (ISG) to start the internal combustion engine via a clutch. Furthermore, the electric machine can serve in regenerative operation for charging an electrical energy store and be used for recuperation in braking operation.
  • ISG integrated starter generator
  • As a transmission for varying the ratio of the drive of the driven axles are basically all forms of vehicle transmissions into consideration.
  • the changing connection of the electric machine and the internal combustion engine in the drive train in the parallel hybrid is usually realized via couplings.
  • two-clutch arrangements (2K) and one-clutch arrangements (1K) in both concepts the electric machine being able to function as an integrated starter generator (2K-ISG or 1K-ISG arrangement).
  • 2K ISG powertrain as known for example from US 2005 022 1947 A1
  • the internal combustion engine can be connected to the electric machine via a first clutch.
  • the electric machine in turn can be coupled via a separate second clutch with a vehicle transmission.
  • a 1 K ISG powertrain as known for example from DE 10 2005 051 382 A1, however, eliminates a second separate coupling between the electric machine and the transmission or the output.
  • the electric machine can then be directly connected to a transmission input.
  • an optional second clutch between the electric machine and the output can, as far as this is the case with the respective drive configuration. is provided or required, even from possibly existing internal gear clutches and / or switching brakes, as they are installed, for example, in automatic gearboxes, or be taken over by a transmission upstream lockup clutch.
  • the launches of the internal combustion engine by means of the electric motor are of particular importance in the hybrid drive, because they are decisive on the one hand for driving comfort and on the other for driving dynamics. In addition, they play an important role in the economy and efficiency of the hybrid drive.
  • a shift strategy and a hybrid operating strategy can be correlated in such a way that relatively often a shift request coincides with an engine start request, wherein depending on the drive concept and transmission design, the shift operation can be linked to a traction interruption.
  • the start of the internal combustion engine during a gear ratio change during an electric drive or during a starting process can be carried out, as is known from DE 10 2005 007 966 A1 and the already mentioned DE 10 2005 051 382 A1, by first providing the transmission, optionally with one for it required torque reduction at the transmission input, switched to a neutral position, then closed a clutch between the engine and the electric motor and then the internal combustion engine is started by means of the electric motor. It is also possible that, in equivalence to a transmission neutral position, to start the internal combustion engine, if present, a arranged between the electric machine and the transmission second clutch is opened.
  • the combustion engine Due to the neutral position of the transmission or the separation of the electric machine from the gearbox, the combustion engine is therefore completely or at least almost completely decoupled from the output of the gearbox during take-off in the case of starts in traction-interrupted gearshift, so that engine starting Conditional shock loads in the drive train can be largely avoided.
  • a usually necessary synchronization of the transmission input to a connection speed of the sequence to be inserted can be done after the engine start with the clutch open alone by means of the electric machine or with the clutch in conjunction with the engine. If, subsequently, a purely electric drive by the electric machine is desired, for example for a starting operation during a start / stop operation, then the clutch can again be completely opened to the internal combustion engine and a transmission input shaft can be synchronized to a synchronous rotational speed of the gear to be engaged, for example, by means of a speed control of the electric machine first gear, are regulated while the engine is idle running load-free.
  • the speed of the current internal combustion engine is first adapted to the current speed (above the idling speed) at the transmission input and then the clutch is closed.
  • an immediate correlated speed control of the circulating in the block drive units for synchronization of the transmission input is required. Only after synchronization, the target gear or the target gear can be easily inserted and the traction produced or restored.
  • the invention has for its object to provide a method and apparatus for operating a hybrid drive of a vehicle with an internal combustion engine and an electric machine as drive units, in which the period of a traction interrupted switching operation at a start of the engine by means of the electric machine and its coupling to the drive train is as short as possible, and yet ensure a high level of ride comfort.
  • the invention is based on the finding that in a parallel Hybridantheb at the start of the engine by means of an electric machine in a circuit with a traction interruption, by an immediate control of the starting speed of the engine to a transmission input speed of the following gear, the period from the beginning of traction interruption to Completion of the circuit with coupling of the internal combustion engine can be shortened.
  • the invention is based on a method for operating a hybrid drive of a vehicle with a parallel hybrid Aufhebsstrang, comprising an internal combustion engine, at least one electric machine, at least one arranged in the power flow direction between the internal combustion engine and the electric machine switching element, a transmission and a Output in which the switching element is closed to start the internal combustion engine by means of the electric machine.
  • a switching element for connecting the internal combustion engine and electric machine all types of automatically controllable actuators are understood, via which the engine and the electric machine can be coupled together. This can be, for example, an electro-hydraulic or electro-pneumatically actuated frictional starting and separating clutch.
  • the invention provides that in a starting operation of the internal combustion engine during a traction interruption in a shift of the transmission, a starting speed of the engine is controlled directly to a predicted target transmission input speed of a sequence translation, the beginning of a firing of the internal combustion engine optionally with Speed control is correlated.
  • An engine firing is understood as meaning a fuel injection with a subsequent spark ignition or ignition of the air-fuel mixture formed in the internal combustion engine, wherein a start of the engine firing is the first injection instant.
  • the invention can be used in all types of vehicles with such parallel hybrid drive trains. Furthermore, the object is achieved by a device for carrying out the method. Accordingly, the invention further proceeds from a device for operating a hybrid drive of a vehicle having a parallel hybrid overrun, comprising an internal combustion engine, at least one electric machine, at least one switching element arranged in the power flow direction between the internal combustion engine and the electric machine, by means of which the internal combustion engine with the electric machine frictionally connectable, a gearbox and an output.
  • control means are provided with which at a start of the internal combustion engine by means of the electric machine during a traction interruption in a shift of the transmission, a starting speed of the engine directly to a predicted target transmission input speed of a follow-up ratio adjustable and the beginning of a firing of the internal combustion engine optionally with the speed control is correlated ,
  • the respective new target transmission input speed to be determined beforehand in a shift operation can be relatively easily calculated from the planned speed. ge transmission and from the current output speed or the vehicle speed or derived therefrom variables are determined.
  • the internal combustion engine is raised to the target transmission input rotational speed by means of the electric machine with the switching element closed, for example a frictionally engaged starting and decoupling clutch, the engine firing being initiated when the target transmission input rotational speed is reached or approaching ,
  • the injection time is freely selectable in this procedure.
  • the internal combustion engine during the traction interruption in a circuit preferably by a swing start or a direct start, speed-controlled by the electric machine to the target transmission input speed, but first without the internal combustion engine is fired. Only shortly before or when reaching the target speed of the internal combustion engine is fired. Thus, the engine is started immediately at the speed necessary to engage the target gear on the transmission input, which is why the synchronization of the transmission input takes place immediately with the engine start.
  • a swing start is particularly advantageous as a start mode, since the electric machine drives the vehicle already at a certain speed.
  • the clutch is first opened and set at the electric machine, the target transmission input speed or accelerates the electric machine to the target transmission input speed or maintained a current machine electrical engine speed above the target transmission input speed.
  • the switching element is closed and the internal combustion engine, as described above, once it has reached the desired target speed, fired, so brought a fuel-air mixture to the ignition.
  • a direct start as a start mode is particularly advantageous because the electric machine and the engine have the speed zero, so that it is cheaper in terms of start time to accelerate the engine simultaneously with the electric machine with.
  • the (first) clutch when switched in neutral gear or, if a second clutch is disposed between the electric machine and the transmission, initially closed with the second second clutch open, and then the internal combustion engine accelerated by the electric motor with increasing speed.
  • the internal combustion engine is in turn, as soon as it has reached the desired target speed, fired.
  • a direct start is possible.
  • To set or maintain the target transmission input speed of the internal combustion engine itself can be operated in terms of its control and regulation itself in a speed mode.
  • the internal combustion engine via a motor control unit temporarily a drive torque is specified and the electric machine is operated in a speed mode, as required, motor or generator to regulate the target transmission input speed.
  • one or more gas exchange valves of a valve train of the internal combustion engine remain closed during the unfired startup of the internal combustion engine.
  • an internal resistance of the internal combustion engine can be kept relatively low as the speed increases.
  • a gas spring effect which results from the filling and expulsion of the cylinder fillings with air and an acceleration of the engine counteracts as the speed increases, largely avoided, which can further shorten the time to reach the target speed.
  • the internal combustion engine is raised to the target transmission input rotational speed by means of the electric machine with the switching element closed, wherein the engine firing automatically starts at a rotational speed below the target transmission input rotational speed.
  • the injection timing can not be freely selected. Rather, the fuel injection when accelerating the engine independently, so motor-controlled regardless of reaching the target transmission input speed, from a certain speed.
  • the startup process is not left to the internal combustion engine, but made or supported by the coupled electric machine.
  • an electric motor-combustion engine combined start-up of the rotational speed of the crankshaft of the internal combustion engine takes place on the predicted target transmission input rotational speed.
  • Fig. 1 is a schematic representation of a hybrid drive 1 of a vehicle for carrying out an operating method according to the invention.
  • FIG. 1 shows a diagram of a hybrid vehicle drive 1 with a parallel hybrid drive train 2, as may be provided for example for a commercial vehicle (truck, bus, van, special vehicle).
  • the drive train 2 has an internal combustion engine 3, for example a diesel engine, with a crankshaft 24, which can be connected to an electric machine 5 via a switching element 4.
  • the electric machine 5 is over a transmission input 6 coupled to a transmission 7 for the transmission of translations.
  • the drive train 2 shown in FIG. 1 is thus designed as a 1 K ISG arrangement, ie with a separating or starting clutch as a switching element 4 for coupling the internal combustion engine 3 to the drive train 2 and the drive connection to the electric machine 5.
  • a second separate switching element between the electric machine 5 and the transmission 7 is not available separately.
  • the transmission 7 an unspecified illustrated power take-off (PTO: Power Take-Off) 8 be arranged downstream. Via an output 25 and a differential 9, a respective applied output torque of the hybrid drive 1 can be forwarded to a drive axle 10 and via this to the drive wheels 1 1.
  • PTO Power Take-Off
  • the electric machine 5 can be operated as an electric drive unit or as a generator.
  • a converter 12 which can be controlled by a converter control unit 13.
  • the electric machine 5 with an electric drive energy storage 14, for example, a 340 V high-voltage battery (supercaps are also possible) connected.
  • the electric machine 5 is powered by the energy storage 14.
  • the energy store 14 is electrically charged by the electric machine 5.
  • the electric machine 5 functions as an integrated starter generator (ISG) for starting the internal combustion engine 3.
  • ISG integrated starter generator
  • the high-voltage circuit of the energy accumulator 14 or the control units connected thereto are connected via a bidirectional DC-DC converter (DC / DC) 15 to a vehicle electrical system (24V or 12V) 16.
  • the energy store 14 can be monitored and regulated by means of a battery management system (BMS) 17 with respect to its state of charge (SOC).
  • BMS battery management system
  • the DC-DC converter 15 can be controlled by a DC-DC converter control unit 18.
  • a controller 19 is not for explained in more detail brake control functions, in particular an anti-lock braking system (ABS) or an electronic brake system (EBS) and another control device 20 for an electronic diesel control (EDC) of the example designed as a diesel engine combustion engine 3 is provided.
  • ABS anti-lock braking system
  • EBS electronic brake system
  • EDC electronic diesel control
  • the individual control units mentioned may also be combined, at least in part, in a control unit.
  • a control device 21 For controlling the drive train components, a control device 21 is present, in which a transmission control unit 21 a (TCU: Transmission Control Unit) and a hybrid control unit 21 b (HCU: Hybrid Control Unit) are integrated.
  • TCU Transmission Control Unit
  • HCU Hybrid Control Unit
  • the strategy unit 22 communicates via a data bus 23, for example a CAN bus, with the control device 21 and the control devices 13, 17, 18, 19.
  • control means 26 are present, which are connected on the one hand with the control device 21 and on the other hand with the electronic diesel control 20.
  • control means 26 By means of the control means 26 in conjunction with the control device 21, the rotational speed of the electric machine 5 and in conjunction with the diesel control 20, the speed of the engine 3 and the beginning of the injection of fuel in the combustion chambers at a starting process by means of the electric machine 5 with closed switching element 4 at a traction interruption during a switching operation of the transmission 7 adjustable.
  • An inventive method for operating the hybrid drive 1 is based on a control of a starting speed of the internal combustion engine 3 at a starting operation during a shift of the transmission 7 with a traction interruption.
  • a start request for starting the internal combustion engine 3 and a coincident shift request for gear change of the transmission 7 in electric driving, ie at open clutch 4 and stationary engine 3 first, according to a swing start, the electric machine 5 during the traction interruption in neutral switched Gear 7 controlled by the control means 26 accelerates to a predicted based on the gear ratio of a selected sequence and the vehicle speed target input speed of the transmission input 6 and then the clutch 4 is closed.
  • the internal combustion engine 3 is turned up by the electric machine 5 to the target transmission input rotational speed, without the internal combustion engine being fired, that is, supplied with fuel.
  • the firing is triggered by the diesel control 20 only when the engine 3 has reached the target transmission input speed.
  • the internal combustion engine 3, with the electric machine 5 circulating in the block directly transmits the required synchronous speed for engaging the following gear to the transmission input 6, so that the target gear is engaged and the circuit is brought to an end, in which case the traction in the drive train can be restored ,
  • the internal combustion engine 3 subsequently drives the vehicle according to a strategy specification, either by electric motor assisted by the electric machine 5 or by the electric machine 5 as a generator.
  • the internal combustion engine 3 at a start request for example, at a starting, with neutral gear and stationary vehicle, according to a direct start, be connected from the outset with the electric machine 5 by closing the switching element 4. Subsequently, the crankshaft 24 of the engine 3 by means of the electric machine 5 to a target transmission input speed of Targeting or Anfahrganges accelerated and initiated the firing of the internal combustion engine 3 when the target speed is reached.
  • Control device a Transmission control unit b Hybrid control unit

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • General Engineering & Computer Science (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

L'invention concerne un procédé et un dispositif pour faire fonctionner un groupe motopropulseur hybride (1) d'un véhicule, équipé d'une chaîne cinématique (2) hybride parallèle comprenant un moteur à combustion (3), au moins un moteur électrique (5), au moins un élément de commande du passage des vitesses (4) disposé entre le moteur à combustion (3) et le moteur électrique (5) dans le sens du flux de force, une boîte de vitesses (7) et un arbre de sortie (25), l'élément de commande du passage des vitesses (4) étant fermé pour démarrer le moteur à combustion (3) au moyen du moteur électrique (5). L'invention vise à limiter autant que possible la durée d'un processus de changement de vitesse avec interruption de la force de traction lors d'un démarrage du moteur à combustion (3) au moyen du moteur électrique (5) et de son accouplement à la chaîne cinématique (2), tout en garantissant un grand confort de conduite. À cet effet, une vitesse de rotation initiale du moteur à combustion (3) est réglée directement sur une vitesse de rotation cible de l'arbre d'entrée calculée préalablement d'après un rapport de transmission consécutif, le début de la combustion dans le moteur à combustion (3) étant mis en corrélation optionnellement avec le réglage de la vitesse de rotation.
PCT/EP2008/066595 2007-12-17 2008-12-02 Procédé et dispositif pour faire fonctionner un groupe motopropulseur hybride d'un véhicule WO2009077317A2 (fr)

Applications Claiming Priority (2)

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DE102007055826.2 2007-12-17
DE102007055826A DE102007055826A1 (de) 2007-12-17 2007-12-17 Verfahren und Vorrichtung zum Betrieb eines Hybridantriebes eines Fahrzeugs

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WO2009077317A3 WO2009077317A3 (fr) 2009-10-08

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DE102011018203B4 (de) * 2011-04-12 2017-07-27 Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg Verfahren zum Betreiben eines Hybrid-Antriebsstranges und Steuereinrichtung zum Betreiben eines Hybrid-Antriebsstranges
DE102011102022A1 (de) 2011-05-19 2012-04-19 Daimler Ag Hybridantriebsstrangvorrichtung
DE102017200977A1 (de) * 2017-01-23 2018-07-26 Audi Ag Verfahren zum Betreiben einer Antriebseinrichtung für ein Kraftfahrzeug sowie entsprechende Antriebseinrichtung

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Publication number Priority date Publication date Assignee Title
EP0922600A2 (fr) * 1997-12-12 1999-06-16 Toyota Jidosha Kabushiki Kaisha Procédé de commande d'un véhicule hybride pendant le démarrage du moteur à combustion
WO2001056824A1 (fr) * 2000-02-04 2001-08-09 C.R.F. Societa' Consortile Per Azioni Procede et systeme de commande de la propulsion d'un vehicule a moteur hybride
EP1450037A1 (fr) * 2003-01-31 2004-08-25 Volkswagen Aktiengesellschaft Dispositif d'entraínement pour véhicule automobile et méthode correspondente
DE102006022395A1 (de) * 2006-05-12 2007-11-15 Robert Bosch Gmbh Verfahren zum Starten einer Verbrennungskraftmaschine in einem Hybridantrieb

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005007966A1 (de) 2005-02-22 2006-10-05 Zf Friedrichshafen Ag Antriebsstrang eines Kraftfahrzeugs und Verfahren zum Betreiben des Antriebsstranges
DE102005051382A1 (de) 2005-10-27 2007-05-10 Zf Friedrichshafen Ag Hybridantrieb und Verfahren zu dessen Betrieb

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0922600A2 (fr) * 1997-12-12 1999-06-16 Toyota Jidosha Kabushiki Kaisha Procédé de commande d'un véhicule hybride pendant le démarrage du moteur à combustion
WO2001056824A1 (fr) * 2000-02-04 2001-08-09 C.R.F. Societa' Consortile Per Azioni Procede et systeme de commande de la propulsion d'un vehicule a moteur hybride
EP1450037A1 (fr) * 2003-01-31 2004-08-25 Volkswagen Aktiengesellschaft Dispositif d'entraínement pour véhicule automobile et méthode correspondente
DE102006022395A1 (de) * 2006-05-12 2007-11-15 Robert Bosch Gmbh Verfahren zum Starten einer Verbrennungskraftmaschine in einem Hybridantrieb

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WO2009077317A3 (fr) 2009-10-08

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