EP4077010A1 - Procédé de fonctionnement en roue libre d'un module hybride - Google Patents

Procédé de fonctionnement en roue libre d'un module hybride

Info

Publication number
EP4077010A1
EP4077010A1 EP20838941.1A EP20838941A EP4077010A1 EP 4077010 A1 EP4077010 A1 EP 4077010A1 EP 20838941 A EP20838941 A EP 20838941A EP 4077010 A1 EP4077010 A1 EP 4077010A1
Authority
EP
European Patent Office
Prior art keywords
clutch
drive train
hybrid drive
vehicle
parameters
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20838941.1A
Other languages
German (de)
English (en)
Inventor
Stefanx LAUER
Srinivasa Sunil REDDY
Simon BAENSCH
Magdalena VIERACKER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vitesco Technologies GmbH
Original Assignee
Vitesco Technologies GmbH
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 Vitesco Technologies GmbH filed Critical Vitesco Technologies GmbH
Publication of EP4077010A1 publication Critical patent/EP4077010A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
    • 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
    • B60K6/42—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
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • B60W20/11—Controlling the power contribution of each of the prime movers to meet required power demand using model predictive control [MPC] strategies, i.e. control methods based on models predicting performance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • B60W20/12—Controlling the power contribution of each of the prime movers to meet required power demand using control strategies taking into account route information
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/20—Control strategies involving selection of hybrid configuration, e.g. selection between series or parallel configuration
    • 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
    • B60W30/18072—Coasting
    • 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
    • B60W30/18109—Braking
    • B60W30/18127—Regenerative braking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/08—Interaction between the driver and the control system
    • B60W50/082—Selecting or switching between different modes of propelling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • 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
    • B60W30/18072—Coasting
    • B60W2030/1809—Without torque flow between driveshaft and engine, e.g. with clutch disengaged or transmission in neutral
    • 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
    • B60W2530/00—Input parameters relating to vehicle conditions or values, not covered by groups B60W2510/00 or B60W2520/00
    • B60W2530/10—Weight
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2540/00—Input parameters relating to occupants
    • B60W2540/043—Identity of occupants
    • 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
    • B60W2552/00—Input parameters relating to infrastructure
    • B60W2552/05—Type of road, e.g. motorways, local streets, paved or unpaved roads
    • 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
    • B60W2552/00—Input parameters relating to infrastructure
    • B60W2552/20—Road profile, i.e. the change in elevation or curvature of a plurality of continuous road segments
    • 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
    • B60W2552/00—Input parameters relating to infrastructure
    • B60W2552/40—Coefficient of friction
    • 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
    • B60W2555/00—Input parameters relating to exterior conditions, not covered by groups B60W2552/00, B60W2554/00
    • B60W2555/20—Ambient conditions, e.g. wind or rain
    • 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
    • B60W2556/00—Input parameters relating to data
    • B60W2556/45—External transmission of data to or from the vehicle
    • B60W2556/50—External transmission of data to or from the vehicle of positioning data, e.g. GPS [Global Positioning System] data
    • 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
    • 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
    • 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 sailing operation for hybrid systems in a motor vehicle according to the preamble of independent claim 1 as well as a control device and a motor vehicle.
  • a hybrid system in a motor vehicle has both an internal combustion engine and an electrical machine as a traction machine.
  • Such hybrid drives are also referred to as hybrid electric drives.
  • Both the electric machine and the internal combustion engine can each be used alone or together to drive the vehicle, and are therefore each referred to as traction machines.
  • Systems in which the electric traction machine (e-machine) is arranged between the internal combustion engine and the transmission, each with a clutch (K0) to the internal combustion engine and to the transmission (K1), are referred to in this application as P2_Hybridsysteme.
  • P2_Hybridsysteme Such a hybrid system is shown as an example in FIG.
  • the invention relates to the operation of a P2 hybrid system.
  • the electrical machine components located between the internal combustion engine and the transmission are sometimes also referred to as hybrid modules.
  • the K1 clutch When sailing with an open K0 clutch, the K1 clutch remains closed.
  • the electric machine is coupled to the transmission input shaft by clutch K1 and runs with it.
  • the advantages of coasting operation via an open KO clutch (and closed K1 clutch) are fast response times by avoiding changeover processes, for example when changing between coasting operation and purely electric driving. There is no need for synchronization. Thanks to the closed K1 clutch, recuperation (recovery of braking energy by the electrical machine) is possible at any time when braking.
  • the internal combustion engine is started, the use of the rotational energy of the hybrid module and the electric machine leads to a faster start of the internal combustion engine.
  • K1 sailing with the K1 clutch disengaged is correspondingly lower friction loss.
  • the invention is therefore based on the object of specifying a method with which the disadvantages mentioned can be avoided.
  • the inventive method for operating a hybrid drive train for a motor vehicle in which an output shaft of an internal combustion engine can be detachably connected to a shaft of an electric traction machine via a first clutch K0, and the shaft of the electric traction machine in turn via at least one second clutch K1 with at least one Transmission input shaft is releasably connectable, provides that the first clutch KO or the at least one second clutch K1 is disengaged for a change to coasting mode of the hybrid drive train, with a decision being made as a function of one or more state parameters whether the first clutch KO or the at least a second clutch K1 is opened.
  • the shaft of the electrical machine can be releasably connectable directly or indirectly via the clutches KO and K1 to the output shaft of the internal combustion engine or the input shaft of the transmission.
  • a direct connection can exist, for example, if the shafts run coaxially and the shafts are connected to one another directly via the couplings.
  • an arrangement is also possible, for example, in which the shaft of the electrical machine is arranged parallel to the output shaft of the VM.
  • the connection can be made indirectly via a belt drive or a gear stage.
  • the invention can also be used for hybrid drive trains with dual clutch transmissions.
  • hybrid drive trains with a dual clutch transmission there can be two second clutches K1 and two transmission input shafts, which are then arranged, for example, in parallel.
  • both second clutches K1 are to be opened equally for sailing or other operation with the clutch K1 disengaged. I.e. both second clutches K1 are or will be opened.
  • either the first clutch KO or the at least one second clutch K1 is disengaged for coasting operation, the decision as to which of the clutches is disengaged being made as a function of one or more state parameters.
  • a possible starting state for the sailing operation according to the invention is that the vehicle is moving in a first operating mode at a speed (v) and is driven by the electrical machine and / or the internal combustion engine.
  • a speed (v) Usually at least the second clutch (K1) is closed or both clutches (K1) and (K0) are closed.
  • the method according to the invention for sailing operation is in principle also possible when the vehicle is stationary, for example when it is rolling on a slope. This can then also take place from a state with the clutch K1 open.
  • the invention is based on the knowledge that in some situations K1 sailing (sailing with the clutch K1 disengaged) is more favorable. In other situations K0 sailing (sailing with the clutch K0 open) is cheaper.
  • the coasting operation is therefore carried out, depending on the situation, either with the K0 or with the K1 clutch.
  • the different situations are characterized by one or more state parameters.
  • the one or more state parameters (P) are preferably determined before changing to sailing mode.
  • the method according to the invention is also possible from an already running sailing operation. After determining a status parameter, a change between K0 sailing and K1 sailing can also be made, for example take place according to the method according to the invention. It can therefore preferably be provided that the state parameter (s) is / are continuously determined.
  • the state parameter (s) can include one or more vehicle parameters, environment parameters, driver parameters and / or diagnostic parameters.
  • Vehicle parameters can include, for example, one or more pieces of information about a vehicle speed, a vehicle mass or a driving operating mode.
  • An environmental parameter can include one or more pieces of information about a vehicle position, i.e. a location parameter, a weather condition and / or a road condition.
  • a driver parameter contains, for example, information about the preferences of a current driver of the vehicle. For example, whether the driver prefers a sporty or an energy-efficient driving style.
  • a diagnostic parameter can, for example, indicate whether one of the two clutches is defective and can no longer be opened, for example.
  • the diagnostic parameter can be used to decide that the other clutch must be opened. This means that sailing operation is still possible as a fail-safe option even in the event of a fault.
  • the diagnostic parameter is recognized, for example, by a clutch control device.
  • the clutch control can be part of a flybridge module control or a control of the drive train.
  • the one or more state parameters are compared with one or more predetermined threshold values. If several status parameters are taken into account, a weighting of the different status parameters can be provided so that a uniform decision is made possible.
  • the state parameter relates to a current vehicle speed v.
  • the vehicle speed can be compared with a predetermined threshold value, for example. If the vehicle speed is below the threshold value, the speed is low and the clutch K0 is opened for coasting operation. If the vehicle speed is above the threshold value, clutch K1 is opened.
  • a predetermined threshold value for example. If the vehicle speed is below the threshold value, the speed is low and the clutch K0 is opened for coasting operation. If the vehicle speed is above the threshold value, clutch K1 is opened.
  • low speeds usually mean a high proportion of purely electric driving, for which the KO must be open. In addition, low speeds also mean frequent changes between sailing operation, electric driving and hybrid driving with a combustion engine, i.e. rapid changes in status must be possible.
  • the electric driving component is lower and the dynamics of the state change are less important, so that it makes sense to use the comparatively lower losses of K1 sailing.
  • the vehicle position is viewed as a status parameter. If the vehicle is in urban areas, for example in city traffic, K0 sailing is preferred because it is usually driven at lower speeds and there may also be more frequent changes in status.
  • K1 sailing is preferred for cross-country traffic or out of town and on motorways, as the speed at which the vehicle is usually driven is higher.
  • K0 sailing is used in “zero emission zones” (ie traffic zones in which no emissions may be emitted) because the combustion engine is not allowed to be started at all. This means that only electric driving and sailing are used in such zones.
  • the vehicle position can be determined, for example, via a satellite-supported positioning system such as GPS.
  • a driving mode can be viewed as a status parameter.
  • an ECO mode (energy-efficient) mode can be selected depending on the driver's wishes.
  • the K1 sailing mode is preferred because the electric machine and the flybridge module do not rotate, which leads to lower friction losses.
  • K0 sailing is preferably selected.
  • a performance mode for example, a high level of dynamics is required by the driver when there are changes in status (i.e. a shorter response time). Then K0 sailing is preferred.
  • K0 sailing is also preferred in air conditioning mode: If a mechanical air conditioning compressor is mounted on or in the hybrid module parallel to the electrical machine, the air conditioning can also be driven from the vehicle mass during K0 sailing.
  • the state parameter can also relate to a driver parameter.
  • a specific driver can be recognized in the vehicle via a driver recognition function. This can, for example, have certain preferences for a ferry operation, similar to a fixed selected driving operating mode. If an economical driver is recognized (even temporarily), K1 sailing is preferred, for the same reasons as described above for ECO mode. Otherwise K0 sailing is preferred.
  • the preferences of a specific driver can be different for different types of roads or in and out of town, for example. Then preferably for the decision which of the clutches is to be opened in sailing mode, in addition to Driver parameters a location parameter (environmental parameters) are taken into account.
  • Another environmental parameter can relate to a roadway condition, which can be characterized, for example, by a coefficient of friction. If the coefficient of friction is low, e.g. in winter, when the road is wet or dirty, K0 sailing is preferred. K0 sailing minimizes the number of coupling processes. This is an advantage, since coupling processes also mean a non-uniform torque curve on the wheel, which in the event of a low coefficient of friction on the road could lead to a loss of wheel grip.
  • the decision as to which clutch is to be opened for coasting operation can then be made, for example, by comparing the coefficient of friction of the road with a predetermined threshold value. If the coefficient of friction is below the threshold value, K0 sailing is selected.
  • Another possible condition parameter is the vehicle weight:
  • the vehicle weight can be compared with a predetermined threshold value, for example.
  • a control device in a motor vehicle with a P2 hybrid drive train which is set up to carry out the method according to the invention, is a further independent aspect of the invention.
  • the control device can, for example, be a controller for the entire drive train or a separate control unit for the hybrid module.
  • a vehicle with a control device according to the invention is a further independent aspect of the invention.
  • FIG. 1 a P2 hybrid drive train for a motor vehicle for carrying out the method according to the invention
  • FIG. 2 a flow chart showing the sequence of the method according to the invention according to a first embodiment variant
  • FIG. 3 A motor vehicle with a P2 flybridge drive train and a control unit for carrying out the method according to the invention.
  • the method according to the invention can be used in the P2 flybridge drive train (1) according to FIG.
  • the internal combustion engine (10) is connected to the electric traction machine (11) via a clutch (KO).
  • the clutch (KO) is arranged between the electric traction machine (11) and the transmission (12). From the gear (12), the drive force is transmitted to the axle (14) and the wheels (15) via a differential gear (13).
  • the vehicle travels at a speed v.
  • a status parameter is determined before the start of a sailing operation. The status parameter is used to decide whether clutch K1 or KO should be opened for coasting operation. In the last step, the opening KO or K1 is opened to start sailing.
  • a motor vehicle with a controller according to the invention is shown in FIG. The vehicle also includes a drive train according to FIG. 1 (not shown in FIG. 3).

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

Abstract

L'invention concerne un procédé de fonctionnement en roue libre d'un module hybride (1) pour un véhicule automobile, dans lequel un moteur à combustion interne (10) est relié de manière séparable par l'intermédiaire d'un premier embrayage (K0) à un moteur de traction électrique (11), et le moteur de traction électrique (11) pour sa part est relié de manière séparable par l'intermédiaire d'un second embrayage (K1) à une transmission, dans laquelle, pour le fonctionnement en roue libre, le premier embrayage (K0) ou le second embrayage (K1) est désengagé et la décision quant à savoir lequel des deux embrayages est libéré est prise en fonction d'un ou de plusieurs paramètres d'état.
EP20838941.1A 2019-12-19 2020-12-17 Procédé de fonctionnement en roue libre d'un module hybride Pending EP4077010A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019220218.7A DE102019220218A1 (de) 2019-12-19 2019-12-19 Angepasste Segel-Strategie für P2-Hybridsysteme
PCT/EP2020/086861 WO2021123046A1 (fr) 2019-12-19 2020-12-17 Procédé de fonctionnement en roue libre d'un module hybride

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EP4077010A1 true EP4077010A1 (fr) 2022-10-26

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EP (1) EP4077010A1 (fr)
CN (1) CN114786982A (fr)
DE (1) DE102019220218A1 (fr)
WO (1) WO2021123046A1 (fr)

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DE102022124955A1 (de) * 2022-09-28 2024-03-28 Schaeffler Technologies AG & Co. KG Elektrisch betreibbarer Achsantriebsstrang, Verfahren zur Steuerung eines Achsantriebsstrangs, Computerprogrammprodukt und Steuereinheit zur Steuerung eines Achsantriebsstrangs

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US10259448B2 (en) * 2016-08-17 2019-04-16 GM Global Technology Operations LLC Hybrid vehicle propulsion systems and methods
US20190232950A1 (en) * 2018-01-30 2019-08-01 GM Global Technology Operations LLC Hybrid powertrain system

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CN114786982A (zh) 2022-07-22
WO2021123046A1 (fr) 2021-06-24
US20230018941A1 (en) 2023-01-19
DE102019220218A1 (de) 2021-06-24

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