WO2017194047A1 - Procédé de commande d'un embrayage de coupure dans une chaîne cinématique hybride - Google Patents

Procédé de commande d'un embrayage de coupure dans une chaîne cinématique hybride Download PDF

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Publication number
WO2017194047A1
WO2017194047A1 PCT/DE2017/100315 DE2017100315W WO2017194047A1 WO 2017194047 A1 WO2017194047 A1 WO 2017194047A1 DE 2017100315 W DE2017100315 W DE 2017100315W WO 2017194047 A1 WO2017194047 A1 WO 2017194047A1
Authority
WO
WIPO (PCT)
Prior art keywords
clutch
torque
electric machine
internal combustion
combustion engine
Prior art date
Application number
PCT/DE2017/100315
Other languages
German (de)
English (en)
Inventor
Volker Küss
Florian Ziefle
Sebastien Oster
Original Assignee
Schaeffler Technologies AG & Co. KG
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 Schaeffler Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Priority to DE112017002404.8T priority Critical patent/DE112017002404A5/de
Publication of WO2017194047A1 publication Critical patent/WO2017194047A1/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
    • B60K6/22—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
    • B60K6/38—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 driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • 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
    • 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
    • B60W10/08—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
    • B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
    • B60W10/182—Conjoint control of vehicle sub-units of different type or different function including control of braking systems including control of parking brakes
    • 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
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
    • F16D48/08—Regulating clutch take-up on starting
    • 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
    • B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • 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
    • B60W2050/0062—Adapting control system settings
    • B60W2050/0075—Automatic parameter input, automatic initialising or calibrating means
    • B60W2050/0083—Setting, resetting, calibration
    • B60W2050/0087—Resetting start and end points of actuator travel
    • 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
    • B60W2510/08—Electric propulsion units
    • B60W2510/081—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
    • B60W2510/08—Electric propulsion units
    • B60W2510/081—Speed
    • B60W2510/082—Speed change rate
    • 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
    • B60W2710/02—Clutches
    • B60W2710/021—Clutch engagement state
    • B60W2710/022—Clutch actuator position
    • 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
    • B60W2710/083—Torque
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/10—System to be controlled
    • F16D2500/104—Clutch
    • F16D2500/10406—Clutch position
    • F16D2500/10412—Transmission line of a vehicle
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/10—System to be controlled
    • F16D2500/106—Engine
    • F16D2500/1066—Hybrid
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/302—Signal inputs from the actuator
    • F16D2500/3026—Stroke
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/306—Signal inputs from the engine
    • F16D2500/3067—Speed of the engine
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/308—Signal inputs from the transmission
    • F16D2500/30806—Engaged transmission ratio
    • F16D2500/30808—Detection of transmission in neutral
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/704—Output parameters from the control unit; Target parameters to be controlled
    • F16D2500/70402—Actuator parameters
    • F16D2500/7041—Position
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/704—Output parameters from the control unit; Target parameters to be controlled
    • F16D2500/70464—Transmission parameters
    • F16D2500/70488—Selection of the gear ratio
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/704—Output parameters from the control unit; Target parameters to be controlled
    • F16D2500/7049—Brake parameters
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/706—Strategy of control
    • F16D2500/70605—Adaptive correction; Modifying control system parameters, e.g. gains, constants, look-up tables
    • 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 controlling a between an internal combustion engine and an electric machine arranged by an actuator automatically operated disconnect clutch of a hybrid powertrain with the electric machine subsequently arranged transmission.
  • Hybrid powertrains of a motor vehicle in which an internal combustion engine and an electric machine form a drive unit are well known.
  • a separating clutch can be arranged between the internal combustion engine and the electric machine.
  • the electric machine is a drive wheels of the motor vehicle driving gear downstream, so that can be purely electric driven and recuperated with open disconnect clutch and optionally arranged between electric machine and gearbox open startup clutch or a neutral position of the transmission without engaged gear, the internal combustion engine can be started by means of the electric machine can.
  • the separating clutch is automatically controlled by a control unit.
  • an actuator is provided which actuates the separating clutch along an actuating path from a closed to an open state and vice versa.
  • each individual actuating travel point is assigned a clutch torque to be transmitted. Due to influencing parameters such as temperature, wear and operating time of the separating clutch, this assignment changes.
  • the separating clutch can be calibrated and continuously adapted. For this purpose, a touch point of the Disconnect clutch determined at the disconnect clutch begins to transmit torque and applied to this touch a clutch characteristic of the transmittable clutch torque on the actuation path.
  • the clutch characteristic itself can be continuously calibrated and adapted, for example, by determining a so-called coefficient of friction, which represents a slope of the characteristic.
  • a calibration of the displacement sensor is carried out by an actuator of the actuator to a stop, for example, with an open friction clutch and there determines a reference position, for example, by energizing the Aktors no locomotion of the actuator is detected. Due to blockages before the stop a wrong reference position can be set, so that is assumed by a wrong coordinate origin, and the disconnect is operated incorrectly, for example, is suppressed in the closed state of the clutch, so that, for example, in a clutch with force-adjusting device unnecessary readjustments are initiated ,
  • the object of the invention is the development of a method for controlling a separating clutch in a generic drive train.
  • an adaptation of the separating clutch should be safer and more frequently possible.
  • the frequency of adaptations should be increased.
  • the robustness of the adaptations should be increased.
  • the proposed method is used to control a between an internal combustion engine and an electric machine arranged, automatically actuated by an actuator, such as an electric actuator disconnect clutch of a hybrid powertrain with the electric machine subsequently arranged transmission.
  • the separating clutch can be closed or opened during active operation of the actuator.
  • the separating clutch may have a force-controlled or path-controlled adjusting device. For example, an adjustment process can be initiated with an actively closed disconnect clutch with force-adjusting device by overpressing the closed disconnect clutch.
  • the torque provided by the electric machine can be greater than 5 Nm and less than 30 Nm.
  • the torque applied by the electric machine can be assigned to the clutch torque at the disengaging point.
  • the clutch torque transmitted via the separating clutch is equated to the torque of the electric machine applied to the separating clutch.
  • the predetermined speed can be provided in the smallest possible, yet significantly detectable range, for example a few revolutions per minute or only fractions of a revolution.
  • a desired detection of the touch point of the separating clutch in which this begins to transmit moment, can be determined from the disengaging point by means of a predetermined correlation of the touch point of the separating clutch and the touch point a predetermined actuation path.
  • the correlation can be determined, for example empirically, for example on the basis of hysteresis properties and the like of the separating clutch.
  • the electric machine can be operated speed-controlled and torque-limited after determining the Auskuppelddlings. For example, the electric machine can be switched off after exceeding a predetermined speed.
  • the proposed method can be carried out at an existing starting clutch between the electric machine and transmission with the start clutch.
  • the method can be performed with or without existing starting clutch in a neutral position of the transmission without gear engaged.
  • the proposed method of determining the disengaging point of a separating clutch by means of the following method steps serves in not necessarily conclusive enumeration:
  • the disengaging point of the separating clutch is determined when opening the separating clutch.
  • the disengaging point of the separating clutch and the engaging point can be considered to be interdependent.
  • An existing starting clutch between the electric machine and the transmission is open or the transmission is in neutral position, so that the speed of the motor vehicle is equal to zero or the motor vehicle unrolls without pulling.
  • the disconnect clutch is closed at the initial stage of the process.
  • the internal combustion engine is at a standstill.
  • the electric machine applies a small torque and braces the drive train by the electric machine wants to turn away due to the torque, but is prevented by the shutdown internal combustion engine.
  • the torque of the electric machine is so large, for example, set greater than 5 Nm, that in the course of the process at the disengaging a significant increase in speed can be detected.
  • the set torque is set smaller than a starting torque of the internal combustion engine, for example, less than 30 Nm.
  • the electric machine can be operated in speed control and simultaneous torque limiting.
  • the actuator for actuating the separating clutch moves slowly in the direction "open clutch”.
  • Disconnect clutch is the torque of the electric machine above the clutch torque and causes the speed of the electric machine increases.
  • the disengaging point at which the clutch torque corresponds to the torque applied by the electric motor, such as the E-motor torque, can be determined by the increasing speed of the electric machine.
  • the determination of the Auskuppelddlings can be carried out at each startup of the motor vehicle.
  • the disengaging point can in any case be assumed to be known before the first start of the internal combustion engine.
  • the determination of the Auskuppel Vietnameses is in contrast to the known determination of a Tast Vietnameses in closing separating clutch robust, there on each If a discoupling point can be assigned.
  • the previous touch point determination can be unsuccessful for various reasons. For example, a permission to perform the Tast Vietnamese can be withdrawn early due to a superimposed operating strategy or the speed of the electric machine are not kept stable within the defined speed band or the like.
  • Figure 2 is a diagram of the process of the method.
  • FIG. 1 shows the drive train 1 for carrying out the proposed method in a schematic view.
  • the internal combustion engine 2 and the electric machine 3 are connected to one another in a separable manner by means of the separating clutch 4, which is automatically actuated by means of an actuator, not shown.
  • the electric machine 3 is the transmission 5, which drives the drive wheels 6, downstream.
  • the actuator operates the separating clutch 4 along an actuating path.
  • an adaptable clutch characteristic of the clutch torque is provided via the actuation travel, which is continuously adapted, for example, before the driveline 1 is put into operation.
  • at least one disengaging point is determined on an associated actuation path of the separating clutch 4.
  • the electric machine 3 is operated when the internal combustion engine 2 is stopped, the clutch 4 is closed and the drive train is open at the end, that is, in this embodiment, in the neutral position of the engine.
  • drive 5 is energized in a non-engaged gear with a torque between 5 and 30 Nm. This torque is transmitted via the closed separating clutch 4 to the internal combustion engine 2 and held against there by this.
  • FIG. 2 shows with reference to FIG. 1 the diagram 7 with the moment M and the rotational speed n over the time t for carrying out the determination of the disengaging point A of the separating clutch 4.
  • the graph 8 shows the clutch torque ⁇ of the separating clutch 4, the graph 9, the torque ME of the electric machine 3 and the graph 10, the rotational speed ⁇ of the electric machine 3 over the time t.
  • phase I a torque MEO in the amount between 5 Nm and 30 Nm is set to the electric machine 3.
  • the transferable via the clutch 4 maximum clutch torque ⁇ is in the closed state many times greater than the torque MEO, so that the torque MEO completely 2 ne on the internal combustion engine 2 and is held against this.
  • phase II the clutch torque ⁇ is slowly lowered by displacing an actuator of the actuator along the actuation path.
  • the clutch torque ⁇ of the disconnect clutch corresponds to the torque ME of the electric machine 3 and the rotor of the electric machine 3 begins to rotate.
  • the Auskuppelddling A is reached and is assigned to the current actuation path of the actuator of the actuator.
  • the rotational speed ⁇ of the electric machine 3 reaches a predetermined value and is turned off.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Automation & Control Theory (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

L'invention concerne un procédé de commande d'un embrayage de coupure (4) qui est agencé entre un moteur à combustion interne (2) et un moteur électrique (3) et qui est actionné automatiquement par un actionneur dans une chaîne cinématique hybride (1) comportant une transmission (5) agencée en aval du moteur électrique. L'invention vise à permettre un établissement et une adaptation continue et fiable de la détermination d'une relation entre le couple d'embrayage (MK) de l'embrayage de coupure sur une course d'actionnement de l'actionneur. À cet effet, lorsque la transmission est désaccouplée du moteur électrique, que le moteur à combustion interne est à l'arrêt et que l'embrayage de coupure est fermé, le moteur électrique applique un couple (MEO) inférieur au couple de compression du moteur à combustion interne, l'actionneur ouvre successivement l'embrayage de coupure sur une course d'actionnement et, lors d'un changement de la vitesse de rotation du moteur électrique, un point de débrayage (A) de l'embrayage de coupure est associé à une course d'actionnement prédéfinie.
PCT/DE2017/100315 2016-05-10 2017-04-20 Procédé de commande d'un embrayage de coupure dans une chaîne cinématique hybride WO2017194047A1 (fr)

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DE112017002404.8T DE112017002404A5 (de) 2016-05-10 2017-04-20 Verfahren zur Steuerung einer Trennkupplung in einem hybridischen Antriebsstrang

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DE102016208035.0A DE102016208035A1 (de) 2016-05-10 2016-05-10 Verfahren zur Steuerung einer Trennkupplung in einem hybridischen Antriebsstrang
DE102016208035.0 2016-05-10

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
EP3995376A1 (fr) * 2020-11-10 2022-05-11 Suzuki Motor Corporation Dispositif de commande pour véhicule hybride
DE102021100271A1 (de) 2021-01-11 2022-07-14 Schaeffler Technologies AG & Co. KG Verfahren zum Betätigen einer Abkoppeleinheit
DE102021100272A1 (de) 2021-01-11 2022-07-14 Schaeffler Technologies AG & Co. KG Verfahren zum Betätigen einer Abkoppeleinheit

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Publication number Priority date Publication date Assignee Title
DE102016215597A1 (de) 2016-08-19 2018-02-22 Schaeffler Technologies AG & Co. KG Verfahren zur Ermittlung eines sicherheitsrelevanten Kupplungszustands einer Trennkupplung eines hybridischen Antriebsstrangs
DE102018117310A1 (de) 2018-07-18 2020-01-23 Schaeffler Technologies AG & Co. KG Verfahren zur Verbesserung der Genauigkeit bei einer Tastpunktermittlung einer automatisierten Kupplung in einem Kraftfahrzeug mit einem Verbrennungsmotor

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JP2005508779A (ja) * 2001-07-12 2005-04-07 ルーク　ラメレン　ウント　クツプルングスバウ　ベタイリグングス　コマンディートゲゼルシャフト 車両の、従来とは異なるドライブトレイン内でクラッチの調整を適応させるための方法
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DE19915207A1 (de) * 1999-04-03 2000-10-05 Bosch Gmbh Robert Verfahren und Vorrichtung zur Ermittlung des Greifpunktes bei einer Servokupplung
DE102008030473A1 (de) 2007-07-12 2009-01-15 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Verfahren zur Tastpunktermittlung einer automatisierten Kupplung
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Publication number Priority date Publication date Assignee Title
EP3995376A1 (fr) * 2020-11-10 2022-05-11 Suzuki Motor Corporation Dispositif de commande pour véhicule hybride
DE102021100271A1 (de) 2021-01-11 2022-07-14 Schaeffler Technologies AG & Co. KG Verfahren zum Betätigen einer Abkoppeleinheit
DE102021100272A1 (de) 2021-01-11 2022-07-14 Schaeffler Technologies AG & Co. KG Verfahren zum Betätigen einer Abkoppeleinheit
WO2022148508A1 (fr) 2021-01-11 2022-07-14 Schaeffler Technologies AG & Co. KG Procédé d'actionnement d'une unité de désaccouplement
DE102021100272B4 (de) 2021-01-11 2024-05-16 Schaeffler Technologies AG & Co. KG Verfahren zum Betätigen einer Abkoppeleinheit

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