WO2007085361A1 - Procédé de commande d'une chaîne cinématique de véhicule à moteur - Google Patents

Procédé de commande d'une chaîne cinématique de véhicule à moteur Download PDF

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Publication number
WO2007085361A1
WO2007085361A1 PCT/EP2007/000312 EP2007000312W WO2007085361A1 WO 2007085361 A1 WO2007085361 A1 WO 2007085361A1 EP 2007000312 W EP2007000312 W EP 2007000312W WO 2007085361 A1 WO2007085361 A1 WO 2007085361A1
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WO
WIPO (PCT)
Prior art keywords
input shaft
internal combustion
combustion engine
gear
clutch
Prior art date
Application number
PCT/EP2007/000312
Other languages
German (de)
English (en)
Inventor
Stefan Wallner
Notker Amann
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
Publication of WO2007085361A1 publication Critical patent/WO2007085361A1/fr

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Classifications

    • 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
    • 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
    • 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
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
    • 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
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/2054—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed by controlling transmissions or 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
    • B60W10/02—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
    • 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
    • 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
    • B60W30/19—Improvement of gear change, e.g. by synchronisation or smoothing gear shift
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/04—Smoothing ratio shift
    • F16H61/0403—Synchronisation before shifting
    • 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
    • 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
    • B60L2240/50—Drive Train control parameters related to clutches
    • B60L2240/507—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
    • 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
    • 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
    • B60W2710/10—Change speed gearings
    • B60W2710/1011—Input shaft speed, e.g. turbine speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/04—Smoothing ratio shift
    • F16H61/0403—Synchronisation before shifting
    • F16H2061/0422—Synchronisation before shifting by an electric machine, e.g. by accelerating or braking the input shaft
    • 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
    • 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
    • Y02T10/72—Electric energy management in electromobility

Definitions

  • the invention relates to a method for controlling a motor vehicle drive train, which comprises an internal combustion engine, an electric motor and a transmission provided with unsynchronized clutches, which are coupled to one another via a summation with two input elements and an output element and via a frictional coupling formed as a friction clutch, in that the first input element is non-rotatably connected to the crankshaft of the internal combustion engine, the second input element to the rotor of the electric machine and the output element to the input shaft of the transmission, and in which the lock-up clutch between two elements of the summation gear is arranged, wherein between synchronized and subsequently inserted a load gear and a target gear after laying out the load gear of the target gear.
  • a drive train of a motor vehicle of the aforementioned kind is known from DE 199 34 696 A1 and DE 101 52 471 A1.
  • the summation gear is in each case designed as a simple planetary gear with a sun gear, a planet carrier with several planetary gears and a ring gear.
  • the ring gear forms the first input element and is non-rotatably connected to the crankshaft of the internal combustion engine.
  • the sun gear forms the second input element and is non-rotatably coupled to the rotor of the electric machine.
  • the planet carrier forms the output element and is non-rotatably connected to the input shaft of the gearbox.
  • the lock-up clutch is arranged in each case between the sun gear and the planet carrier of the planetary gear.
  • the lockup clutch in contrast to the presently assumed training as Claw clutch formed so that the lock-up clutch can be closed only during synchronous operation of the engine and the input shaft of the gearbox and thus can only be used to a limited extent.
  • a directional freewheel between the crankshaft and a housing part is arranged, whereby the crankshaft secured against reverse rotation and thus the drive torque of the electric machine is supported against the housing.
  • a further directional freewheel between the input shaft of the gearbox and a housing part is arranged, whereby the input shaft secured against reverse rotation and thus the drive torque of the electric machine is supported against the housing.
  • the lockup clutch is designed as a friction clutch, so that the lockup clutch is also used for a rotational speed difference between the input shaft of the shift transmission and the internal combustion engine for transmitting a torque in slip operation can.
  • a further friction clutch between the input shaft of the gearbox and a housing part is arranged, whereby the input shaft can be braked after reaching a starting speed of the electric machine to start the engine.
  • the lock-up clutch is assumed as a friction clutch, in particular as a wet multi-plate clutch, but alternatively can also be designed as a dry clutch.
  • the lockup clutch between the ring gear and the sun gear, so between the crankshaft of the engine and the rotor of the electric machine be arranged.
  • the lock-up clutch is fully closed, so that the planetary gear is blocked and rigidly rotates.
  • the rotational speeds and the directions of rotation of the internal combustion engine, the electric machine and the input shaft of the gearbox are identical.
  • the electric machine is operated in this state mainly as a generator for supplying the electrical system, but can be operated in certain operating situations, especially in acceleration phases of the motor vehicle, temporarily as a motor.
  • the torque of the engine is almost simultaneously reduced, switched off the electric machine and fully open the lock-up clutch.
  • the input shaft of the gearbox is decoupled from the engine, so that the loaded load gear designed to be load-free and the target gear to be engaged synchronized and loaded load-free.
  • the synchronization of the target gear so the acceleration of the input shaft at a downshift and the deceleration of the input shaft at an upshift occurs in synchronized clutches by friction, the contact pressure of the friction elements of the clutches must be applied in each case via the force of the associated switch actuator.
  • the synchronization of the target gear can be done via a special synchronization drive, which is in communication with the input shaft of the gearbox.
  • a special synchronization drive which is in communication with the input shaft of the gearbox.
  • this disadvantageously requires an additional cost and weight expenditure as well as an additional space requirement for the synchronization drive.
  • a synchronization of the target gear with the internal combustion engine with at least partially closed lock-up clutch is possible. Since the internal combustion engine reacts relatively slowly to control commands due to its relatively high moment of inertia and because of its control over the influence of the combustion process, such a synchronization takes a relatively large period of time, whereby the entire switching operation and the associated interruption in traction are extended.
  • the present invention has for its object to provide a method by which the synchronization of the target gear can be performed accelerated in a drive train of the type mentioned in a shift between a load gear and a target gear.
  • Such a method should also be usable in drive trains containing comparable components, but in other propulsion combination combination.
  • the invention is based on a method for controlling a motor vehicle drive train, which comprises an internal combustion engine, an electric machine and a transmission provided with unsynchronized clutches, preferably an automated transmission, which via a summation with two input elements and an output element and via a bypass clutch formed as a friction clutch are coupled to one another, wherein the first input element with the crankshaft of the internal combustion engine, the second input element to the rotor of the electric machine and the output member to the input shaft of the transmission is rotatably connected, and wherein the lock-up clutch between two elements of Summation gear is arranged, wherein at a shift between a load gear and a target gear is synchronized after the laying of the load gear of the target gear and subsequently inserted.
  • gearbox includes, for example, manual transmissions and automated manual transmissions.
  • the target gear is synchronized with the lockup clutch open by means of the electric machine by the input shaft at a downshift by an effective in the direction of rotation of the crankshaft of the engine and the input shaft of the transmission positive torque M_EM> 0 from the electric machine to the synchronous speed of the target gear is accelerated, and at an upshift by an opposite to the direction of rotation of the crankshaft of the internal combustion engine and the input shaft of the transmission effective negative torque M_EM ⁇ 0 is delayed by the electric machine to the synchronous speed of the target gear.
  • the torque M_EM of the electric machine is supported via the summation gearbox relative to the internal combustion engine. It is therefore important for the synchronization process, as the internal combustion engine is controlled during synchronization, in particular wel- che speed n_VM or which speed curve of the internal combustion engine during synchronization has.
  • the internal combustion engine is most easily kept during the synchronization of the input shaft at a substantially constant speed n_VM, in particular at the beginning of the switching operation.
  • n_EM_soll n_GE_soll * (1 - i 0 ) + n_VM_ist • i 0
  • the support of the synchronization of the target gear with the internal combustion engine has the additional advantage that the engine speed n_VM has already largely approximated the input shaft at the end of the synchronization and the subsequent engagement of the target gear n_GE, so that usually after a switching operation required adjustment of the two speeds can be omitted or at least significantly shortened.
  • FIG. 1 shows typical speed curves in a synchronization of the target gear according to the invention
  • Fig. 3 shows the general structure of the underlying drive train in a simplified schematic representation
  • FIG. 4 shows a preferred practical embodiment of the drive train according to FIG. 3 in a schematic representation.
  • a drive train 1 according to FIG. 3 comprises an internal combustion engine 2, an electric machine 3 and an automated manual transmission 4, which are coupled to one another via a summing gear 5 with two input elements 6, 7 and one output element 8.
  • the first input element 6 is rotatably connected to the crankshaft 9 of the internal combustion engine 2, the second input element 7 with the rotor 10 of the electric machine 3 and the output member 8 with the input shaft 11 of the gearbox 4 respectively.
  • a lock-up clutch 12 designed as a friction clutch is arranged between two elements of the summation gear 5, in the present case between the two input elements 6 and 7.
  • the internal combustion engine 2, the electric machine 2 and the lock-up clutch 12 are connected via sensor and control lines 13 to a control unit 14, via which the components of the drive train 1 can be controlled and controlled in a coordinated manner.
  • FIG. 4 A preferred practical embodiment of the drive train 1 is shown in FIG. 4.
  • the summation gear 5 is formed as a simple planetary gear 15 with a sun gear 16, a planet carrier 17 with a plurality of planetary gears 18 and a ring gear 19.
  • the ring gear 19 forms the first input element 6 and is connected via a flywheel 20 and a torsional vibration damper 21 with the crankshaft 9 of the engine 2 in connection.
  • the sun gear 16 forms the second input element 7 and is directly connected to the rotor 10 of the electric machine 3.
  • the planet carrier 17 forms the output element 8 and is directly connected to the input shaft 11 of the gearbox 4 in connection.
  • a between the input shaft 11 and a housing part 22 arranged directional freewheel 23 serves to support the input shaft 11 at a start of the engine 2 by the electric machine 3.
  • the transmission 4 is executed in countershaft design and has a total of six forward gears and one reverse gear, each via one unsynchronized claw clutch are selectively switchable.
  • the lock-up clutch 12 is connected between the rotor 10 of the electric machine 3 and a connecting shaft 24. ordered, through which the internal combustion engine 2 is in communication with the ring gear 19.
  • Fig. 2 typical speed curves are now shown during a push-down, in which the synchronization of the target gear in a known manner at least partially closed lock-up clutch 12 by means of the internal combustion engine 2 takes place.
  • FIG. 1 typical speed curves are shown during a push downshift, in which the synchronization of the target gear according to the invention is carried out with fully opened lockup clutch 12 by means of the electric machine 3 with the assistance of the internal combustion engine 2.
  • the load gear is designed and the speed n_GE_soll required for the synchronization of the target gear is predetermined at the input shaft 11 of the gearbox 4.
  • the electric machine 3 is then driven in such a way that it emits an effective torque in the direction of rotation of the input shaft 11, whereby the rotor 10 of the electric machine 3 is accelerated (speed curve n_EM_ist).
  • speed curve n_EM_ist speed curve
  • the internal combustion engine 2 is accelerated, but with a significant time delay (speed curve n_VM_ist).
  • the invention also encompasses the use of the method in drive trains with all other possible and different drive couplings between the internal combustion engine 2, the electric machine 3, the summation transmission 5, the clutch 12 and the transmission 4, which is not shown here separately.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Automation & Control Theory (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Control Of Transmission Device (AREA)

Abstract

L'invention concerne un procédé de commande d'une chaîne cinématique de véhicule à moteur comprenant un moteur à combustion interne (2), un moteur électrique (3) et une boîte de vitesses (4) dotée d'embrayages non synchronisés, ces organes étant couplés à deux éléments d'entrée (6, 7) et à un élément de sortie (8) par une boîte totalisatrice (5) et entre eux par un embrayage de pontage (12) conçu comme embrayage à friction. Le premier élément d'entrée est relié solidaire en rotation avec le vilebrequin (9) du moteur à combustion interne (2), le deuxième élément d'entrée est relié solidaire en rotation avec le rotor (10) du moteur électrique (3) et l'élément de sortie (8) est relié solidaire en rotation avec l'arbre d'entrée (11) de la boîte de vitesses (4), l'embrayage de pontage (12) étant monté entre deux éléments de la boîte totalisatrice (5). Lors d'un processus de commutation entre un rapport sous charge et un rapport cible, le rapport sous charge ayant été débrayé, le rapport cible est synchronisé puis enclenché. Afin d'accélérer la synchronisation du rapport cible, celui-ci est synchronisé par le moteur électrique (3), l'embrayage de pontage (12) étant ouvert. Lors d'une rétrogradation de vitesse par un couple de rotation positif M_EM > 0 agissant dans le sens de rotation du vilebrequin (9) du moteur à combustion interne (2) et de l'arbre d'entrée (11) de la boîte de vitesses (4), l'arbre d'entrée (11) est accéléré par le moteur électrique (3) pour atteindre le régime de synchronisation du rapport cible et, lors d'un passage à une vitesse supérieure par un couple de rotation négatif M_EM < 0 agissant à l'encontre du sens de rotation du vilebrequin (9) du moteur à combustion interne (2) et de l'arbre d'entrée (11) de la boîte de vitesses (4), l'arbre d'entrée (11) est ralenti par le moteur électrique (3) pour atteindre le régime de synchronisation du rapport cible.
PCT/EP2007/000312 2006-01-26 2007-01-16 Procédé de commande d'une chaîne cinématique de véhicule à moteur WO2007085361A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006003725A DE102006003725A1 (de) 2006-01-26 2006-01-26 Verfahren zur Steuerung eines Kraftfahrzeug-Antriebsstrangs
DE102006003725.1 2006-01-26

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WO2007085361A1 true WO2007085361A1 (fr) 2007-08-02

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PCT/EP2007/000312 WO2007085361A1 (fr) 2006-01-26 2007-01-16 Procédé de commande d'une chaîne cinématique de véhicule à moteur

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Country Link
DE (1) DE102006003725A1 (fr)
WO (1) WO2007085361A1 (fr)

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WO2015076723A1 (fr) * 2013-11-21 2015-05-28 Scania Cv Ab Procédé pour commander un changement de vitesse dans une chaîne cinématique hybride à l'aide d'une machine électrique
CN108327511A (zh) * 2018-02-02 2018-07-27 舍弗勒技术股份两合公司 混合动力系统及混合动力车辆

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JP4743218B2 (ja) * 2008-03-03 2011-08-10 日産自動車株式会社 ハイブリッド車両のクラッチ制御装置
DE102010028936A1 (de) 2010-05-12 2011-11-17 Zf Friedrichshafen Ag Verfahren zum Betreiben eines Antriebsstrangs
DE102010028935A1 (de) * 2010-05-12 2011-11-17 Zf Friedrichshafen Ag Verfahren zum Betreiben eines Antriebsstrangs
DE102010043590A1 (de) 2010-11-09 2012-05-10 Zf Friedrichshafen Ag Verfahren zur Steuerung eines Antriebsstrangs
SE536329C2 (sv) 2010-12-29 2013-08-20 Scania Cv Ab Drivsystem för ett fordon
FR2973299B1 (fr) * 2011-04-01 2013-08-16 Renault Sa Transmission hybride pour vehicule automobile et procede de commande
US8849489B2 (en) * 2011-07-29 2014-09-30 Chrysler Group Llc Shift execution control system for an electrically variable transmission
SE1250702A1 (sv) * 2012-06-27 2013-12-28 Scania Cv Ab Förfarande för att byta växel hos ett fordon
SE536627C2 (sv) 2012-06-27 2014-04-08 Scania Cv Ab Förfarande för att accelerera ett hybridfordon
SE1250720A1 (sv) * 2012-06-27 2013-12-28 Scania Cv Ab Förfarande för att byta växel hos ett fordon
SE1250704A1 (sv) * 2012-06-27 2013-12-28 Scania Cv Ab Drivsystem och förfarande för att driva ett fordon
AT526348B1 (de) * 2022-11-23 2024-02-15 Avl List Gmbh Verfahren und Antriebseinheit zum Starten einer Primärantriebsmaschine

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EP1319546A1 (fr) * 2001-12-12 2003-06-18 Siemens Aktiengesellschaft Groupe propulseur pour véhicule avec moteur thermique, démarreur-alternateur et boite de vitesses manuelle
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WO2015076723A1 (fr) * 2013-11-21 2015-05-28 Scania Cv Ab Procédé pour commander un changement de vitesse dans une chaîne cinématique hybride à l'aide d'une machine électrique
EP3071464A4 (fr) * 2013-11-21 2017-07-19 Scania CV AB Procédé pour commander un changement de vitesse dans une chaîne cinématique hybride à l'aide d'une machine électrique
US9963151B2 (en) 2013-11-21 2018-05-08 Scania Cv Ab Method for controlling gear shifting in a hybrid driveline by use of an electric machine
CN108327511A (zh) * 2018-02-02 2018-07-27 舍弗勒技术股份两合公司 混合动力系统及混合动力车辆

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