CN105313877A - 用于在车辆正爬行时起动发动机的方法和系统 - Google Patents

用于在车辆正爬行时起动发动机的方法和系统 Download PDF

Info

Publication number
CN105313877A
CN105313877A CN201510357417.8A CN201510357417A CN105313877A CN 105313877 A CN105313877 A CN 105313877A CN 201510357417 A CN201510357417 A CN 201510357417A CN 105313877 A CN105313877 A CN 105313877A
Authority
CN
China
Prior art keywords
engine
speed
response
vehicle
turbine transformer
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.)
Granted
Application number
CN201510357417.8A
Other languages
English (en)
Other versions
CN105313877B (zh
Inventor
R·约翰瑞
王小勇
S·J·汤普森
J·A·都尔瑞
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.)
Ford Global Technologies LLC
Original Assignee
Ford Global Technologies LLC
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 Ford Global Technologies LLC filed Critical Ford Global Technologies LLC
Publication of CN105313877A publication Critical patent/CN105313877A/zh
Application granted granted Critical
Publication of CN105313877B publication Critical patent/CN105313877B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • 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
    • 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
    • B60K6/24—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 combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—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
    • B60K6/22—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
    • B60K6/40—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 assembly or relative disposition of components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • 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
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • B60W10/023—Fluid 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
    • B60W10/024—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches including control of torque converters
    • B60W10/026—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches including control of torque converters of lock-up 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
    • B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
    • 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
    • B60W30/18018—Start-stop drive, e.g. in a traffic jam
    • 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
    • B60W30/18063—Creeping
    • 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
    • B60W30/20—Reducing vibrations in the driveline
    • 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
    • B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
    • B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
    • B60W40/105—Speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/04—Starting of engines by means of electric motors the motors being associated with current generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
    • F02N11/0818—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode
    • F02N11/0833—Vehicle conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N5/00—Starting apparatus having mechanical power storage
    • F02N5/04—Starting apparatus having mechanical power storage of inertia type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • 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
    • B60W30/20—Reducing vibrations in the driveline
    • B60W2030/203—Reducing vibrations in the driveline related or induced by the clutch
    • 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
    • B60W30/20—Reducing vibrations in the driveline
    • B60W2030/206—Reducing vibrations in the driveline related or induced by the engine
    • 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
    • B60W2510/02—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
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/06—Combustion engines, Gas turbines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/06—Combustion engines, Gas turbines
    • B60W2510/0638—Engine speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2520/00—Input parameters relating to overall vehicle dynamics
    • B60W2520/10—Longitudinal speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/02—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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/06—Combustion engines, Gas turbines
    • B60W2710/0666—Engine torque
    • 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
    • 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
    • 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
    • B60W2710/18—Braking system
    • 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
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S903/00—Hybrid electric vehicles, HEVS
    • Y10S903/902—Prime movers comprising electrical and internal combustion motors
    • Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
    • Y10S903/93—Conjoint control of different elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)

Abstract

本发明涉及用于起动正处于爬行模式时的混合动力车辆的发动机的方法和系统。在一种示例中，响应于起动发动机的请求，释放液力变矩器锁止离合器并且车辆速度是闭环控制的。车辆速度被控制为使得可以降低与闭合传动系断开式离合器有关的扭矩扰动。

Description

用于在车辆正爬行时起动发动机的方法和系统
技术领域
本说明书涉及用于起动正以低车辆速度爬行/缓慢移动的混合动力车辆的发动机的系统和方法。该方法可以应用于在不存在驾驶员需求扭矩和由驾驶员应用制动器时以低速移动的车辆。
背景技术
车辆推进源可以在低车辆速度不存在驾驶员需求扭矩时将少量扭矩(例如，爬行扭矩)提供到车辆传动系。少量扭矩可以允许车辆以低速移动(例如，在小于8KPH下爬行)或者可以允许车辆在具有轻微正坡度的道路上保持其位置。如果车辆是包括发动机和马达二者的混合动力车辆，则马达可以提供爬行扭矩以节省发动机所用的燃料。
在爬行状况期间节省电池荷电的一种方式为锁定液力变矩器离合器。通过锁定液力变矩器离合器，来自马达的扭矩可以被传递到车辆的车轮，其中基于液力变矩器的损失较小。当液力变矩器被锁定并且车辆处于爬行模式(例如，在驾驶员需求扭矩小于阈值、未应用车辆制动器以及车辆速度小于阈值速度时的模式)时，马达可以以低于发动机怠速的速度旋转。如果在爬行状况期间存在起动发动机的请求且同时马达正向传动系提供扭矩，则可能期望在没有传动系扭矩扰动或车辆速度增加的情况下起动发动机。然而，起动发动机会在传动系扭矩扰动可能更明显的低车辆速度下增加产生传动系扭矩扰动的可能性。
发明内容
发明人在此已经意识到以上提到的缺点并且已经开发一种传动系方法，该传动系方法包含：响应于起动发动机的请求，在爬行模式期间打开锁定的液力变矩器离合器；以及响应于起动发动机的请求，增加液力变矩器叶轮速度。
通过打开锁定的液力变矩器并增加液力变矩器叶轮速度，可以提供减小传动系扭矩扰动同时维持车辆爬行速度的技术效果。例如，打开锁定的液力变矩器允许液力变矩器的叶轮以不同于液力变矩器的涡轮的速度旋转。因此，通过应用车辆制动器可以控制车辆速度，并且当液力变矩器叶轮速度接近于发动机转速时，可以闭合传动系断开式离合器从而导致较小的传动系扭矩扰动。以此方式，打开锁定的液力变矩器并加快液力变矩器叶轮速度对降低发动机起动期间的传动系扭矩扰动并改善发动机至传动系的机械耦接是有益的。
在另一实施例中，传动系方法包含：响应于起动发动机的请求，在爬行模式期间打开锁定的液力变矩器离合器；响应于起动发动机的请求，增加液力变矩器叶轮速度；以及响应于起动发动机的请求进入闭环车辆速度控制模式。
在另一实施例中，该方法进一步包含：响应于驾驶员应用制动器踏板或加速器踏板，退出闭环车辆速度控制模式。
在另一实施例中，液力变矩器叶轮速度经由电动机器增加到期望的发动机怠速。
在另一实施例中，该方法进一步包含：响应于逝去时间量，退出闭环车辆速度控制模式。
在另一实施例中，该方法进一步包含：响应于液力变矩器叶轮速度匹配发动机转速而闭合传动系断开式离合器，或者在不闭合传动系断开式离合器的情况下以怠速运转发动机。
在另一实施例中，提供传动系系统。该传动系系统包含：发动机；电动机器；用于选择性地耦接发动机和电动机器的断开式离合器；包括耦接到电动机器的锁止离合器的液力变矩器；以及包括存储在非临时性存储器中的可执行指令的控制器，所述指令用于响应于起动发动机的请求在车辆爬行模式期间从锁定状态打开液力变矩器。
在另一实施例中，传动系系统进一步包含响应于起动发动机的请求而使电动机器加速至期望的发动机怠速的附加指令。
在另一实施例中，传动系系统进一步包含响应于电动机器和发动机达到期望的发动机怠速而闭合断开式离合器的附加指令。
在另一实施例中，传动系系统进一步包含响应于驾驶员应用加速器踏板而退出车辆爬行模式的附加指令。
在另一实施例中，传动系系统进一步包含响应于起动发动机的请求而进入闭环车辆速度控制的附加指令。
在另一实施例中，经由控制器应用车辆制动器以闭环车辆速度控制来控制车辆速度。
本说明书可以提供若干优势。例如，该方法可以减小传动系扭矩扰动。此外，该方法可以在车辆爬行模式期间提供改善的车辆速度控制。进一步地，该方法可以在车辆爬行模式期间提供改善的发动机起动。
当单独地或结合附图，根据以下具体实施方法将易于明白本说明书的上述优势和其他优势和特征。
应当理解，提供以上概述是为了以简化的形式介绍一些概念，这些概念在具体实施方式中被进一步描述。这并不意味着确定所要求保护的主题的关键或基本特征，要求保护的主题的范围被随附于具体实施方式的权利要求唯一地限定。此外，要求保护的主题不限于解决在上面或在本公开的任何部分中提及的任何缺点的实施方式。
附图说明
当单独或参考附图，通过阅读实施例的示例(在此被称为具体实施方式)，将更彻底地明白在此描述的优势，其中：
图1是发动机的示意图；
图2示出示例车辆传动系配置；
图3示出速度控制方框图的示例；
图4示出扭矩控制方框图的示例；
图5示出用于在车辆正爬行时起动发动机的方法的流程图；以及
图6示出根据图5的方法的用于图1和图2的系统的模拟运行次序的绘图。
具体实施方式
本说明书涉及在爬行模式期间改善混合动力车辆发动机起动。发动机可以是图1中示出的类型。发动机可以机械地耦接到其他车辆部件以形成如图2中所示的传动系。协调发动机起动的控制器可以提供如图3中所示的速度控制系统或如图4中所示的扭矩控制系统。图5提供当车辆处于爬行模式时起动发动机的方法。最后，图6示出包括起动处于爬行模式的车辆的发动机的模拟传动系运行次序。
参考图1，内燃发动机10包含多个汽缸，在图1中示出其中的一个汽缸，该内燃发动机10由电子发动机控制器12控制。发动机10包括燃烧室30和汽缸壁32，其中活塞36被定位在汽缸壁32中并且连接至曲轴40。飞轮97和环形齿轮99耦接至曲轴40。起动器96包括小齿轮轴98和小齿轮95。小齿轮轴98可以选择性地推进小齿轮95以接合环形齿轮99。起动器96可以直接安装到发动机的前面或者发动机的后面。在一些示例中，起动器96可以选择性地经由皮带或者链条向曲轴40供应扭矩。在一种示例中，当起动器96未接合至发动机曲轴时，其处于基本状态。燃烧室30被示为经由各自的进气门52和排气门54与进气歧管44和排气歧管48连通。可以通过进气凸轮51和排气凸轮53运转每个进气门和排气门。可以由进气凸轮传感器55确定进气凸轮51的位置。可以由排气凸轮传感器57确定排气凸轮53的位置。
燃料喷射器66被示为被定位成将燃料直接喷射至汽缸30，这作为直接喷射已被本领域技术人员公知。替代性地，燃料可以被喷射至进气道，这作为进气道喷射已被本领域技术人员公知。燃料喷射器66输送与来自控制器12的脉冲宽度成比例的液态燃料。燃料通过包括燃料箱、燃料泵以及燃料轨(未示出)的燃料系统(未示出)被输送至燃料喷射器66。
此外，进气歧管44被示为与涡轮增压器压缩机162连通。轴161将涡轮增压器涡轮164机械地耦接至涡轮增压器压缩机162。可选电子节气门62调节节流板64的位置以控制从空气进口42流至压缩机162和进气歧管44的空气流动。在一种示例中，可以使用高压双级燃料系统来产生较高的燃料压力。在一些示例中，节气门62和节流板64可以被定位在进气门52和进气歧管44之间，使得节气门62为进气道节气门。
无分电器点火系统88响应于控制器12经由火花塞92向燃烧室30提供点火火花。通用排气氧传感器(UEGO)126被示为耦接至催化转化器70上游的排气歧管48。可替代地，可以用双态排气氧传感器代替UEGO传感器126。
在一种示例中，转化器70能够包括多块催化剂砖。在另一示例中，能够使用每个均带有多块砖的多个排放控制装置。在一种示例中，转化器70能够是三元型催化剂。
控制器12在图1中被示为常规微型计算机，其包括：微处理器单元(CPU)102、输入/输出端口(I/O)104、只读存储器(ROM)106(例如，非临时性存储器)、随机存取存储器(RAM)108、保活存储器(KAM)110以及常规数据总线。控制器12被示为接收来自被耦接至发动机10的传感器的各种信号，除了上述那些信号之外，还包括：来自被耦接至冷却套筒114的温度传感器112的发动机冷却剂温度(ECT)；被耦接至加速器踏板130用于感测由脚132施加的力的位置传感器134；被耦接到制动器踏板150用于感测脚152施加的力的位置传感器154，来自被耦接至进气歧管44的压力传感器122的发动机歧管压力(MAP)的测量值；来自感测曲轴40位置的霍尔效应传感器118的发动机位置传感器；来自传感器120的进入发动机的空气质量的测量值；以及来自传感器58的节气门位置的测量值。大气压力也可以被感测(传感器未示出)，以用于由控制器12处理。在本说明书的优选方面，发动机位置传感器118在每次曲轴回转产生预定数量的等距脉冲，由此能够确定发动机转速(RPM)。
在一些示例中，发动机可以被耦接至图2中所示的混合动力车辆的电动马达/电池系统。此外，在一些示例中，可以采用其他发动机配置，例如，柴油发动机。
在运行期间，发动机10内的每个汽缸通常经受四冲程循环：该循环包括进气冲程、压缩冲程、膨胀冲程和排气冲程。一般地，在进气冲程期间，排气门54闭合并且进气门52打开。空气经由进气歧管44引入燃烧室30，并且活塞36移动至汽缸的底部，从而增加燃烧室30内的容积。活塞36邻近汽缸的底部并且处于其冲程的结束时(例如，当燃烧室30处于其最大容积时)的位置通常被本领域技术人员称为下止点(BDC)。在压缩冲程期间，进气门52和排气门54都闭合。活塞36朝向汽缸盖移动，以便压缩燃烧室30内的空气。活塞36处于其冲程的结束并且最靠近汽缸盖(例如，当燃烧室30处于其最小容积时)的点通常被本领域技术人员称为上止点(TDC)。在下文被称为喷射的过程中，燃料被引入燃烧室内。在下文中被称为点火的过程中，通过已知的点火手段(例如火花塞92)点燃喷射的燃料，从而导致燃烧。在膨胀冲程期间，膨胀的气体推动活塞36回到BDC。曲轴40将活塞运动转换成旋转轴的旋转扭矩。最后，在排气冲程期间，排气门54打开，从而将燃烧的空气燃料混合物释放至排气歧管48，并且活塞返回到TDC。应注意，上述描述仅作为示例，并且进气门和排气门的打开和/或闭合正时可以变化，诸如提供正的或者负的气门重叠、延迟进气门闭合或者各种其他示例。
图2是车辆传动系200的方框图。图2的传动系包括图1中所示的发动机10。传动系200可以由车辆225内的发动机10提供动力。发动机10可以使用图1中所示的发动机起动系统或者经由传动系集成的起动器/发电机(DISG)240起动。DISG240也可以被称为电动机器、马达和/或发电机。进一步地，可以经扭矩致动器204(例如燃料喷射器、节气门等)调整发动机10的扭矩。
发动机输出扭矩可以被传递到传动系断开式离合器236的输入侧。断开式离合器236可以被电动或液压地致动。断开式离合器236的下游侧被示为机械地耦接至DISG输入轴237。
DISG240可以被运转以向传动系200提供扭矩或者将传动系扭矩转化成电能以被存储在电能存储设备275中。DISG240具有比图1中所示的起动器96更高的输出扭矩能力。进一步地，DISG240直接驱动传动系200或者直接由传动系200驱动。不存在皮带、齿轮或者链条将DISG240耦接到传动系200。而是，DISG240以与传动系200相同的速率旋转。电能存储设备275可以是电池、电容器或者电感器。DISG240的下游侧经由轴241被机械地耦接到液力变矩器206的叶轮285。DISG240的上游侧被机械地耦接到断开式离合器236。
液力变矩器206包括向输入轴270输出扭矩的涡轮286。输入轴270将液力变矩器206机械地耦接至自动变速器208。液力变矩器206还包括液力变矩器旁通锁止离合器212(TCC)。当TCC被锁定时，扭矩从叶轮285直接传输到涡轮286。TCC由控制器12电动运转。可替代地，TCC可以被液压地锁定。在一种示例中，液力变矩器可以被称为变速器的一个部件。
当液力变矩器锁止离合器212完全脱离接合时，经由液力变矩器涡轮286和液力变矩器叶轮285之间的流体传递，液力变矩器206将发动机扭矩传输至自动变速器208，从而能够使扭矩倍增。相反，当液力变矩器锁止离合器212被完全接合时，发动机输出扭矩经由液力变矩器离合器被直接传输至变速器208的输入轴(未示出)。可替代地，可以部分接合液力变矩器锁止离合器212，从而能够调整被直接转至变速器的扭矩量。控制器12被配置成，通过响应于各种发动机工况或基于基于驾驶员的发动机运行请求来调节液力变矩器锁止离合器，从而调节由液力变矩器212传输的扭矩量。
自动变速器208包括档位离合器(例如，档位1-6)211和前向离合器210。档位离合器211和前向离合器210可以选择性地接合以推进车辆。来自自动变速器208的扭矩输出进而可以经由输出轴260传至车轮216以推进车辆。具体地，自动变速器208可以在将输出驱动扭矩传递至车轮216之前响应于车辆行驶状况，传输在输入轴270处的输入驱动扭矩。
进一步地，通过接合车轮制动器218，可以将摩擦力施加至车轮216。在一种示例中，响应驾驶员将其脚踏在制动器踏板上(未示出)，可以接合车轮制动器218。在另一些示例中，控制器12或者链接到控制器12的控制器可以应用接合车轮制动器。以相同的方式，响应驾驶员将其脚从制动器踏板上释放，通过脱离接合车轮制动器218，可以降低施加至车轮216的摩擦力，进一步地，车辆制动器可以经由控制器12将摩擦力施加至车轮216，以作为自动化发动机停止过程的一部分。
控制器12可以被配置为接收来自发动机10的输入，如图1中详细示出，并且相应地控制发动机的扭矩输出和/或液力变矩器、变速器、DISG、离合器和/或制动器的运行。如一种示例，通过控制涡轮增压或机械增压发动机的节气门开度和/或气门正时、气门升程和升压，通过调节火花正时、燃料脉冲宽度、燃料脉冲正时和/或空气充气的组合可以控制发动机扭矩输出。在柴油发动机的情况中，通过控制燃料脉冲宽度、燃料脉冲正时以及空气充气的组合，控制器12可以控制发动机扭矩输出。在所有情况中，可在逐缸(cylinder-by-cylinder)基础上执行发动机控制以控制发动机扭矩输出。如本领域所熟知的，控制器12还可以控制扭矩输出以及通过调节流向以及来自DISG的场和/或电枢绕组的电流来控制来自DISG的电能产生。
当满足怠速停止状况时，通过切断供至发动机的燃料和火花，控制器42可以开始发动机停机。然而，在一些示例中，发动机可以继续旋转。进一步地，为了维持变速器的扭矩量，控制器12可以将变速器208的旋转元件固定至变速器的外壳259且因而至车辆的机架。当满足发动机重新起动状况，且/或车辆操作者想要发动车辆时，控制器12可以通过起动转动发动机10和恢复汽缸燃烧重新激活发动机10。
虽然图2的系统示出单个控制器12，但是可以存在这样的示例，即其中控制器12是与其他专用控制器(诸如，发动机控制器、变速器控制器、制动器控制器和气候控制器)连通的车辆控制器。
因此，图1和图2的系统提供一种传动系系统，其包含：发动机；电动机器；用于选择性耦接发动机和电动机器的断开式离合器；包括耦接至电动机器的锁止离合器的液力变矩器；以及包括存储在非临时性存储器中的可执行指令的控制器，该指令用于响应于起动发动机的请求在车辆爬行模式期间从锁定状态打开液力变矩器。
在一些示例中，传动系系统进一步包含响应于起动发动机的请求使电动机器加速至期望的发动机怠速的附加指令。传动系系统进一步包含响应于电动机器和发动机达到期望的发动机怠速闭合断开式离合器的附加指令。传动系系统进一步包含响应于驾驶员应用加速器踏板退出车辆爬行模式的附加指令。传动系系统进一步包含响应于起动发动机的请求从开环扭矩控制进入闭环车辆速度控制的附加指令。传动系系统包含其中经由控制器应用车辆制动器以闭环车辆速度控制来控制车辆速度。
现在参考图3，其示出图示说明用于起动正以爬行模式运行的车辆的发动机的示例速度控制配置的方框图。控制器12提供期望的液力变矩器叶轮速度和期望的车辆速度至求和节点302和310。控制器12还提供液力变矩器锁止离合器开启命令至液力变矩器离合器212。液力变矩器离合器212响应于起动发动机的请求可以被开启。
在求和节点310处从期望的液力变矩器叶轮速度减去实际液力变矩器叶轮速度，并且求和节点310输出液力变矩器叶轮速度误差至传递函数312。传递函数312将液力变矩器叶轮速度误差转化为输出到DISG240的DISG扭矩命令。在一些示例中，求和节点310和传递函数312可以并入与控制器12分离开的DISG控制器。
在求和节点302处从期望的车辆速度减去实际车辆速度，并且求和节点302输出车辆速度误差至传递函数304。传递函数304将车辆速度误差转化为输出到制动器218的车辆制动器扭矩命令(例如，施加到车辆制动器的扭矩)。在一些示例中，求和节点302和传递函数304可以并入与控制器12分离开的车辆制动器控制器。
因此，图3的方框图示出控制器12可以确定期望的车辆速度和期望的液力变矩器叶轮速度。控制器12还可以控制液力变矩器离合器响应于起动发动机的请求何时被打开。进一步地，方框图示出实际车辆速度和液力变矩器叶轮速度二者可以是闭环控制的。
现在参考图4，其示出图示说明用于起动正以爬行模式运行的车辆的发动机的示例扭矩控制配置的方框图。控制器12提供期望的DISG或马达扭矩和期望的车辆速度至DISG240和求和节402。控制器12还提供液力变矩器锁止离合器开启命令至液力变矩器离合器212。液力变矩器离合器212响应于起动发动机的请求可以被开启。
控制器12直接提供期望的扭矩至DISG240。在一种示例中，控制器12输出扭矩命令，该扭矩命令可以基于驾驶员需求扭矩、期望的爬行扭矩(例如，当驾驶员需求扭矩为零时，移动车辆或使车辆保持就位的期望的扭矩)、车辆附件扭矩和其他车辆工况。
在求和节点402处从期望的车辆速度减去实际车辆速度，并且求和节点402输出车辆速度误差至传递函数404。传递函数404将车辆速度误差转化为输出到制动器218的车辆制动器扭矩命令(例如，施加到车辆制动器的扭矩)。在一些示例中，求和节点402和传递函数404可以并入与控制器12分离开的车辆制动器控制器。
因此，图4的方框图示出控制器12可以确定期望的车辆速度和期望的DISG扭矩。控制器12还可以控制液力变矩器离合器响应于起动发动机的请求何时被打开。进一步地，方框图示出实际车辆速度可以是闭环控制的。
图3和图4中所图示说明的速度和扭矩控制可以用在图5的方法中。进一步地，图3和图4中所图示说明的速度和扭矩控制可以用在图1和图2所示的系统中。
现在参考图5，其示出用于在车辆处于爬行模式时起动发动机的方法。图5的方法可以作为存储在非临时性存储器中的可执行指令并入图1和图2的系统中。进一步地，图5的方法可以提供图6所示的运行次序。
在502处，方法500判断车辆是否处于爬行模式。在一种示例中，当车辆速度小于阈值速度、驾驶员需求扭矩小于阈值(例如，当驾驶员需求扭矩为零)并且车辆制动器未被应用时，车辆可以处于爬行模式。在另一些示例中，当车辆速度小于阈值并且驾驶员需求扭矩小于阈值扭矩时，车辆可以处于爬行模式。在又一些示例中，方法500可以基于其他状况判断车辆处于爬行模式。当车辆处于爬行模式时，DISG可以向传动系供应扭矩。当发动机没有向传动系供应扭矩时，DISG也可以向传动系供应扭矩。进一步地，DISG可以以小于发动机怠速的速度向传动系供应扭矩。进一步地，当车辆处于爬行模式时，可以应用或者闭合液力变矩器锁止离合器以增加传动系效率。如果方法500判断车辆处于爬行模式，则答案为是且方法前进至504。否则，答案为否且方法500前进至退出。
在504处，方法500判断液力变矩器锁止离合器是否被锁定或闭合。在一种示例中，方法500可以基于存储器中的变量值或者经由来自指示液力变矩器锁止离合器位置的传感器的输入来判断液力变矩器锁止离合器被锁定。如果方法500判断液力变矩器锁止离合器被锁定，则答案为是且方法前进至506。否则，答案为否且方法500前进至退出。
在506处，方法500判断是否请求发动机起动。发动机起动可以响应于低电池荷电状态(SOC)、催化剂温度低于阈值温度、发动机温度低于阈值温度、期望升温发动机机油和/或其他状况而被请求。如果方法500判断发动机起动被请求，则答案为是且方法500前进至508。否则，答案为否且方法500前进至退出。
在508处，方法500打开液力变矩器锁止离合器。液力变矩器锁止离合器被打开以便液力变矩器叶轮速度可以偏离液力变矩器涡轮速度，使得车辆不必响应于DISG或马达速度增加而加速。在打开液力变矩器锁止离合器之后，方法500前进至510。
在510处，方法500将液力变矩器叶轮速度增加至期望的发动机怠速。期望的发动机怠速可以基于发动机温度、自发动机停止后的时间、环境空气温度和/或其他车辆工况。在一些示例中，期望的发动机怠速凭经验被确定并且被存储在控制器存储器中的表中。液力变矩器叶轮速度通过增加DISG速度至而被增加至期望的发动机怠速。DISG速度经由增加DISG扭矩而被增加，并且DISG扭矩通过向DISG供应附加电流而增加。在开始增加DISG速度到发动机怠速后，方法500前进至512。
在512处，方法500进入闭环车辆速度控制模式。在闭环车辆速度控制模式中，通过应用车辆制动器，车辆速度被控制到期望的车辆速度。具体地，随着在液力变矩器锁止离合器被释放之后叶轮速度增加，DISG扭矩运转以推进车辆。然而，响应于车辆速度超过期望的车辆速度，增加制动力。例如，如果实际车辆速度大于期望的车辆速度，可以增加车辆制动力。在一种示例中，期望的车辆速度可以与液力变矩器锁止离合器被释放之前的车辆速度是同一车辆速度。在闭环车辆速度控制模式中，从期望的车辆速度减去实际车辆速度。所得到的速度误差是用于向车辆制动器施加附加力的基础。如果车辆速度小于期望的车辆速度，则可以减小制动力。通过经由车辆制动器控制车辆速度，DISG扭矩可以被增加以加速DISG速度到发动机怠速而不使车辆速度增加超过期望的车辆速度。以此方式，可以匹配发动机转速和DISG速度而不需要驾驶员注意车辆速度的增加。
附加地，在一些示例中，传动系断开式离合器可以响应于DISG速度和/或发动机转速达到期望的发动机怠速而被闭合。由发动机供应的扭矩可用于在闭合传动系断开式离合器后推进车辆。在车辆进入闭环车辆速度控制之后，方法500前进至514。
在514处，方法500判断驾驶员是否应用制动器踏板或加速器踏板。在一种示例中，传感器可以被提供以确定制动器踏板和加速器踏板位置。如果踏板中任一者远离其基本位置(例如，未应用位置)，则可以确定应用加速器踏板或制动器踏板。如果方法500判断应用加速器踏板或制动器踏板，则答案为是且方法前进至518。否则，答案为否且方法前进至516。
在516处，方法500判断自液力变矩器锁止离合器被释放且液力变矩器叶轮速度被增加开始是否已经发生预先确定的阈值时间量。阈值时间量可以凭经验被确定并且被存储在控制器存储器中。如果方法500判断自液力变矩器锁止离合器被释放开始已经逝去阈值时间量，则答案为是且方法500前进至520。否则，答案为否且方法前进至512。
在518处，方法500终止以闭环速度控制运行车辆并且退出爬行模式。方法500向驾驶员释放车辆制动器的控制并且允许车辆达到基于驾驶员需求扭矩的速度。在经由车辆制动器终止闭环车辆速度控制之后，方法500前进至退出。
在520处，方法500基于预先确定的时间间隔缓降(rampoff)车辆制动力且退出爬行模式。当车辆制动力缓降时，减小车辆制动力。缓降制动力允许车辆速度缓慢达到基于驾驶员需求扭矩的速度。在车辆制动力缓降之后，方法500前进至退出。
因此，图5的方法提供退出爬行模式的方式，其中DISG仅向传动系供应功率。进一步地，释放液力变矩器锁止离合器使得DISG速度可以增加到发动机怠速而不需要使车辆速度增加对应于DISG速度和液力变矩器叶轮速度的增加的量。
图5的方法提供用于响应于起动发动机的请求在爬行模式期间打开锁定的液力变矩器离合器；以及响应于起动发动机的请求增加液力变矩器叶轮速度。该方法包括其中液力变矩器叶轮速度被增加到期望的发动机怠速。该方法进一步包含响应于叶轮速度和发动机达到期望的发动机怠速而闭合传动系断开式离合器，或者在不闭合传动系断开式离合器的情况下以怠速运行发动机。该方法包括其中在爬行模式期间电动机器向传动系提供扭矩。
在一些示例中，该方法包括其中电动机器被定位在液力变矩器和断开式离合器之间。该方法包括其中经由电动机器增加液力变矩器叶轮速度。该方法进一步包含响应于制动器踏板或加速器踏板的应用退出爬行模式。
图5的方法还提供一种传动系方法，其包含：响应于起动发动机的请求在爬行模式期间打开锁定的液力变矩器离合器；响应于起动发动机的请求增加液力变矩器叶轮速度；以及响应于起动发动机的请求进入闭环车辆速度控制模式。该方法包括其中闭环车辆速度控制模式包括从期望的车辆速度减去实际车辆速度。该方法进一步包含响应于实际车辆速度大于期望的车辆速度增加制动力。该方法进一步包含响应于驾驶员应用制动器踏板或者加速器踏板退出闭环车辆速度控制模式。该方法包括其中经由电动机器使液力变矩器叶轮速度增加到期望的发动机怠速。该方法进一步包含响应于逝去的时间量退出闭环车辆速度控制模式。该方法进一步包含响应于液力变矩器叶轮速度匹配发动机转速闭合传动系断开式离合器。
现在参考图6，其示出根据图5的方法的用于图1和图2的系统的模拟运行次序的绘图。在时间T1-T6处的竖直标记示出在次序中特别感兴趣的时间。
自图6顶部的第一绘图是爬行模式状态随时间变化的绘图。当迹线处于接近Y轴线箭头的较高水平时，爬行模式状态是激活/有效的。当迹线处于接近X轴线的较低水平时，爬行模式是未激活/无效的。Y轴线表示爬行模式状态而X轴线表示时间。时间从图6的左侧向图6的右侧增加。
自图6顶部的第二绘图是液力变矩器离合器(TCC)状态随时间变化的绘图。当迹线处于接近Y轴线箭头的较高水平时，TCC是激活的(例如，被闭合)。当迹线处于接近X轴线的较低水平时，TCC是未激活的(例如，被打开)。Y轴线表示TCC状态而X轴线表示时间。时间从图6的左侧向图6的右侧增加。
自图6顶部的第三绘图是加速器踏板位置随时间变化的绘图。当迹线处于接近Y轴线箭头的较高水平时，加速器踏板行程正增加并且较大程度地应用加速器踏板。Y轴线表示加速器踏板位置并且加速器踏板位置沿Y轴线箭头的方向增加。X轴线表示时间并且时间从图6的左侧向图6的右侧增加。
自图6顶部的第四绘图是制动力随时间变化的绘图。随着驾驶员应用制动器踏板或者响应于控制器请求的制动量，制动力可以增加。Y轴线表示制动力并且制动力沿着Y轴线箭头的方向增加。X轴线表示时间并且时间从图6的左侧向图6的右侧增加。
自图6顶部的第五绘图是车辆速度随时间变化的绘图。Y轴线表示车辆速度且车辆速度沿Y轴线箭头的方向增加。X轴线表示时间且时间从图6的左侧向图6的右侧增加。
自图6顶部的第六绘图是液力变矩器叶轮速度随时间变化的绘图。Y轴线表示液力变矩器叶轮速度且液力变矩器叶轮速度沿Y轴线箭头的方向增加。X轴线表示时间且时间从图6的左侧向图6的右侧增加。
自图6顶部的第七绘图是发动机状态随时间变化的绘图。当迹线处于接近Y轴线箭头的较高水平时，发动机是激活的。当迹线处于接近X轴线的较低水平时，发动机是未激活的。Y轴线表示发动机状态而X轴线表示时间。时间从图6的左侧向图6的右侧增加。
在时间T0处，车辆处于爬行模式，其中DISG正向液力变矩器叶轮供应扭矩同时驾驶员需求扭矩(未示出)为零。加速器踏板位置可以被转化为驾驶员需求扭矩并且加速器踏板位置因此可以指示驾驶员需求扭矩。液力变矩器锁止离合器被锁定并且制动力为零。液力变矩器锁止离合器被锁定以降低传递损失。车辆速度处于较低水平并且停止发动机。
在时间T1处，发动机状态从停机改变为运行以指示起动发动机的请求。发动机起动请求可以基于低SOC、低发动机温度、低催化剂温度或其他状况。TCC状态转化为低水平以指示TCC正响应于发动机起动请求而被打开。通过增加DISG速度将液力变矩器叶轮速度增加到发动机怠速，并且制动力响应于增加的液力变矩器叶轮速度而增加。车辆进入闭环速度控制并且通过调节制动力来调节车辆速度。通过控制器调节制动器踏板力并且驾驶员不应用制动器踏板。车辆保持爬行模式并且不应用加速器踏板。
在时间T2处，驾驶员如通过加速器踏板迹线增加所指示的应用加速器踏板。车辆退出爬行模式并且响应于加速器踏板位置的增加转变离开闭环车辆速度控制。液力变矩器叶轮速度和车辆速度响应于加速器踏板位置的增加而增加。发动机保持运转。
在时间T2和时间T3之间，驾驶员继续应用加速器踏板，并且当驾驶员应用制动器踏板时制动力为零直到接近时间T3。车辆速度随应用加速器和制动器而增加和降低。车辆保持在爬行模式之外并且液力变矩器保持打开。叶轮速度随加速器踏板被应用和释放而增加和降低。发动机保持运转。
在时间T3处，加速器踏板位置为零并且发动机状态转变为较低水平以指示发动机响应于加速器踏板位置和车辆速度而停止。车辆速度和液力变矩器叶轮速度正降低。车辆还没有进入爬行模式并且液力变矩器离合器未被锁定。
在时间T4处，驾驶员释放车辆制动器踏板而不应用加速器踏板并且车辆响应于车辆速度和加速器踏板位置进入爬行模式。TCC响应于进入爬行模式在时间T4之后立即锁定并且液力变矩器叶轮速度恒定。
在时间T5处，发动机状态变化为较高水平以指示起动发动机的请求。响应于请求的发动机起动，液力变矩器叶轮速度增加至发动机怠速，并且响应于请求的发动机起动，车辆进入闭环车辆速度控制。车辆制动力在闭环车辆速度控制中增加以维持车辆速度。由控制器而非由驾驶员应用制动器。不应用加速器踏板并且液力变矩器离合器状态从较高水平转变为较低水平以指示液力变矩器锁止离合器响应于发动机起动请求而被打开。
在时间T6处，驾驶员应用加速器踏板并且车辆转变离开闭环车辆速度控制。制动力响应于退出闭环车辆速度控制而降低并且车辆响应于加速器踏板被应用而退出爬行模式。
以此方式，车辆可以进入和退出爬行模式和闭环车辆速度控制以管理传动系扭矩扰动并改善传动系效率。在驾驶员不应用车辆制动器踏板的情况下，可以应用车辆制动器，使得车辆速度可以增加得不比期望的高。
如本领域的普通技术人员将明白的，在图5中描述的方法可以表示任何数量的处理策略的一个或更多个，例如事件驱动、中断驱动、多任务、多线程等。因此，所图示说明的各种步骤或功能可以按所示顺序执行、并列执行或在一些情况下被省略。同样地，实现本文所述的目标、特征和优势，未必需要按该处理顺序，其被提供是为了便于解释和说明。尽管未明确地示出，但本领域的普通技术人员将认识到根据所使用的特定策略，可以重复执行一个或更多所示步骤或功能。进一步地，所描述的动作、操作、方法和/或功能可以图形地表示被编入发动机控制系统中的计算机可读存储介质的非临时性存储器中的代码。
这样结束本描述。本领域的技术人员在阅读本描述后，在不背离本描述的精神和范围的情况下，将会想到许多的变更和修改。例如用天然气、汽油、柴油或替代燃料配置运行的I3、I4、I5、V6、V8、V10以及V12发动机可以使用本描述以获益。

Claims (10)

1.一种传动系方法，其包含：
响应于起动发动机的请求，在爬行模式期间打开锁定的液力变矩器离合器；以及
响应于起动所述发动机的所述请求，增加液力变矩器叶轮速度。
2.根据权利要求1所述的方法，其中所述液力变矩器叶轮速度被增加到期望的发动机怠速。
3.根据权利要求2所述的方法，进一步包含响应于所述叶轮速度和发动机达到所述期望的发动机怠速，闭合传动系断开式离合器，或者在不闭合所述传动系断开式离合器的情况下以怠速运行所述发动机。
4.根据权利要求1所述的方法，其中在所述爬行模式期间电动机器向传动系提供扭矩。
5.根据权利要求4所述的方法，其中所述电动机器被定位在液力变矩器和断开式离合器之间。
6.根据权利要求1所述的方法，其中所述液力变矩器叶轮速度经由电动机器被增加。
7.根据权利要求1所述的方法，进一步包含响应于制动器踏板或加速器踏板的应用，退出所述爬行模式。
8.一种传动系方法，其包含：
响应于起动发动机的请求，在爬行模式期间打开锁定的液力变矩器离合器；
响应于起动所述发动机的所述请求，增加液力变矩器叶轮速度；以及
响应于起动所述发动机的所述请求，进入闭环车辆速度控制模式。
9.根据权利要求8所述的方法，其中闭环车辆速度控制模式包括从期望的车辆速度减去实际车辆速度。
10.根据权利要求9所述的方法，进一步包含响应于实际车辆速度大于期望的车辆速度，增加制动力。
CN201510357417.8A 2014-07-15 2015-06-25 用于在车辆正爬行时起动发动机的方法和系统 Active CN105313877B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/331,853 US9327721B2 (en) 2014-07-15 2014-07-15 Methods and systems for starting an engine while a vehicle is creeping
US14/331,853 2014-07-15

Publications (2)

Publication Number Publication Date
CN105313877A true CN105313877A (zh) 2016-02-10
CN105313877B CN105313877B (zh) 2019-05-31

Family

ID=55021905

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510357417.8A Active CN105313877B (zh) 2014-07-15 2015-06-25 用于在车辆正爬行时起动发动机的方法和系统

Country Status (3)

Country Link
US (1) US9327721B2 (zh)
CN (1) CN105313877B (zh)
DE (1) DE102015110800A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108071497A (zh) * 2016-11-18 2018-05-25 福特环球技术公司 用于改善混合动力车辆的响应的方法和系统
CN108082177A (zh) * 2016-11-15 2018-05-29 福特全球技术公司 混合动力传动系中的蠕行消除方法

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105121244B (zh) * 2013-04-22 2017-09-22 本田技研工业株式会社 混合动力车辆的控制装置
DE102015226134A1 (de) * 2015-12-21 2017-06-22 Zf Friedrichshafen Ag Verfahren zum Betreiben eines Kraftfahrzeugs
DE102017204636B4 (de) * 2016-04-15 2023-01-26 Ford Global Technologies, Llc Verfahren und Vorrichtung zum ruckfreien Anhalten eines Kraftfahrzeugs
DE102017219675A1 (de) * 2017-11-06 2019-05-09 Audi Ag Verfahren zum Betrieb eines Kraftfahrzeugs und Kraftfahrzeug
US11400915B2 (en) 2018-10-19 2022-08-02 Ford Global Technologies, Llc Methods and system for starting an engine
US11001380B2 (en) * 2019-02-11 2021-05-11 Cnh Industrial Canada, Ltd. Methods for acquiring field condition data
US11059582B2 (en) 2019-02-11 2021-07-13 Cnh Industrial Canada, Ltd. Systems for acquiring field condition data
US11338794B2 (en) * 2019-04-22 2022-05-24 Ford Global Technologies, Llc Hybrid vehicle launching methods and system
US11358586B2 (en) * 2019-04-22 2022-06-14 Ford Global Technologies, Llc Methods and system for launching a hybrid vehicle
CN112141104B (zh) * 2019-06-26 2022-01-28 北京新能源汽车股份有限公司 一种车辆制动控制方法、装置及汽车
US10967865B2 (en) 2019-07-22 2021-04-06 Ford Global Technologies, Llc Methods and system for managing wheel creep torque of a vehicle
SE544596C2 (en) * 2020-12-14 2022-09-20 Scania Cv Ab Control device, vehicle, computer program, computer readable medium and method for performing gearshift during creep mode
CN113954815B (zh) * 2021-02-18 2023-04-07 长城汽车股份有限公司 发动机启动控制方法
CN114347988B (zh) * 2021-04-30 2024-09-20 长城汽车股份有限公司 P0混动车辆的蠕行控制方法、装置以及p0混动车辆
US11846088B2 (en) * 2021-08-03 2023-12-19 Caterpillar Inc. Automatic vehicle speed control system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101033796A (zh) * 2006-03-07 2007-09-12 丰田自动车株式会社 车辆控制装置和方法
WO2013061449A1 (ja) * 2011-10-27 2013-05-02 トヨタ自動車株式会社 車両制御システム及び制御装置
JP2013091466A (ja) * 2011-10-27 2013-05-16 Toyota Motor Corp ハイブリッド車両の制御装置
CN103381809A (zh) * 2012-05-04 2013-11-06 福特环球技术公司 用于传动系分离式离合器的方法和系统
CN103391868A (zh) * 2011-02-23 2013-11-13 丰田自动车株式会社 混合动力车辆的控制装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4039184B2 (ja) 2002-08-29 2008-01-30 株式会社アドヴィックス クリープ走行制御装置
JP4228007B2 (ja) 2006-06-23 2009-02-25 トヨタ自動車株式会社 動力出力装置およびこれを搭載する車両
JP2011127504A (ja) * 2009-12-17 2011-06-30 Mitsubishi Electric Corp エンジンの自動始動装置
JP5377352B2 (ja) * 2010-02-05 2013-12-25 トヨタ自動車株式会社 車両用動力伝達装置の発進制御装置
KR101294071B1 (ko) * 2011-10-27 2013-08-07 현대자동차주식회사 하이브리드 차량용 시스템
CN103256383B (zh) 2013-05-15 2016-09-21 浙江吉利汽车研究院有限公司杭州分公司 自动变速器爬行起步控制系统及方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101033796A (zh) * 2006-03-07 2007-09-12 丰田自动车株式会社 车辆控制装置和方法
CN103391868A (zh) * 2011-02-23 2013-11-13 丰田自动车株式会社 混合动力车辆的控制装置
WO2013061449A1 (ja) * 2011-10-27 2013-05-02 トヨタ自動車株式会社 車両制御システム及び制御装置
JP2013091466A (ja) * 2011-10-27 2013-05-16 Toyota Motor Corp ハイブリッド車両の制御装置
CN103381809A (zh) * 2012-05-04 2013-11-06 福特环球技术公司 用于传动系分离式离合器的方法和系统

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108082177A (zh) * 2016-11-15 2018-05-29 福特全球技术公司 混合动力传动系中的蠕行消除方法
CN108082177B (zh) * 2016-11-15 2022-10-18 福特全球技术公司 混合动力传动系中的蠕行消除方法
CN108071497A (zh) * 2016-11-18 2018-05-25 福特环球技术公司 用于改善混合动力车辆的响应的方法和系统

Also Published As

Publication number Publication date
US9327721B2 (en) 2016-05-03
DE102015110800A1 (de) 2016-01-21
US20160016580A1 (en) 2016-01-21
CN105313877B (zh) 2019-05-31

Similar Documents

Publication Publication Date Title
CN105313877A (zh) 用于在车辆正爬行时起动发动机的方法和系统
US9669824B2 (en) Methods and system for starting an engine
US10479349B2 (en) Methods and system for launching a hybrid vehicle
CN104417527B (zh) 用于混合动力传动系控制的方法和系统
US9656663B2 (en) Methods and system for operating a powertrain during regenerative braking
CN105270162B (zh) 用于改进混合动力车辆冷却的方法和系统
CN105313886A (zh) 用于当爬行时在控制模式之间转换的方法和系统
US9527505B1 (en) Methods and system for operating a driveline disconnect clutch
CN104773156A (zh) 用于传动系转矩控制的系统和方法
US10704618B2 (en) Methods and system for operating a driveline disconnect clutch
US9791040B2 (en) Methods and system for operating a vehicle transmission
US9707953B2 (en) Methods and systems for improving hybrid vehicle gear shifting
US9523341B2 (en) Methods and system for improving hybrid transmission gear shifting
US10189460B2 (en) Methods and system for operating a vehicle transmission
CN105313887A (zh) 用于改善混合动力车辆变速器换档的方法和系统
US10597025B2 (en) System and method for improving vehicle driveline operation
US10308233B2 (en) Methods and system for estimating driveline torque of a hybrid vehicle
CN106043290B (zh) 用于混合动力车辆换档的方法和系统
CN104373239A (zh) 控制催化剂温度的方法和系统
CN103863315A (zh) 调适混合动力车辆变速器变矩器的锁止离合器的运转的方法和系统
CN104290744A (zh) 运转发动机的方法和系统
US20200122708A1 (en) Methods and system for starting an engine
US10377369B2 (en) Methods and system for predicting driveline disconnect clutch torque
CN105383484A (zh) 发动混合动力车辆的方法和系统
CN105383480A (zh) 用于改进混合动力传动系统操作的方法和系统

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant