EP3074255A1 - Verfahren zum bremsen eines fahrzeugs mit einem hybridantrieb durch kontrollierte verwendung einer elektrischen maschine - Google Patents

Verfahren zum bremsen eines fahrzeugs mit einem hybridantrieb durch kontrollierte verwendung einer elektrischen maschine

Info

Publication number
EP3074255A1
EP3074255A1 EP14866698.5A EP14866698A EP3074255A1 EP 3074255 A1 EP3074255 A1 EP 3074255A1 EP 14866698 A EP14866698 A EP 14866698A EP 3074255 A1 EP3074255 A1 EP 3074255A1
Authority
EP
European Patent Office
Prior art keywords
electric machine
torque
vehicle
brake pedal
torque limitation
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.)
Withdrawn
Application number
EP14866698.5A
Other languages
English (en)
French (fr)
Other versions
EP3074255A4 (de
Inventor
Afram KOURIE
Mats Liwell
Mattias Nilsson
Fredrik SUNDÉN
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.)
Scania CV AB
Original Assignee
Scania CV AB
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 Scania CV AB filed Critical Scania CV AB
Publication of EP3074255A1 publication Critical patent/EP3074255A1/de
Publication of EP3074255A4 publication Critical patent/EP3074255A4/de
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • 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
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    • 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
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    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/2009—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for braking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L7/00—Electrodynamic brake systems for vehicles in general
    • B60L7/10—Dynamic electric regenerative braking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L7/00—Electrodynamic brake systems for vehicles in general
    • B60L7/10—Dynamic electric regenerative braking
    • B60L7/18—Controlling the braking effect
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
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    • 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
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    • 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
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
    • B60W10/196—Conjoint control of vehicle sub-units of different type or different function including control of braking systems acting within the driveline, e.g. retarders
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
    • B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
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    • B60W30/18109—Braking
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    • 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
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • 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
    • B60W2710/08—Electric propulsion units
    • B60W2710/083—Torque
    • B60W2710/085—Torque change rate
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

Definitions

  • the present invention relates to a method to brake a vehicle with a hybrid powertrain according to the preamble of claim 1 .
  • the invention also relates to a hybrid power- train according to the preamble of claim 1 1 and a vehicle according to the preamble of claim 12, comprising such a hybrid powertrain.
  • a hybrid-driven vehicle is operated by a combustion engine and an electric machine, which interact to deliver the desired output and to, among others, achieve a good fuel economy in the vehicle.
  • the electric machine may also be used to brake the vehicle, wherein the electric machine functions as a generator and thus returns energy to an electric accumulator in the vehicle.
  • the vehicle is also equipped with a transmission to distribute power from the combustion engine and the electric machine, and to achieve a suitable gearing for the vehicle's driving wheels.
  • In the vehicle's powertrain there are gaps between the components interacting in the transmission, arising e.g. as a result of backlash among cogwheels in engagement.
  • the objective of the present invention is thus to provide a hybrid powertrain, which provides good driving comfort in the vehicle during braking and when braking ceases.
  • Such a hybrid powertrain will provide good driving comfort for the driver and passengers during braking and when braking ceases.
  • the gap and torsion spring effects in the powertrain may be taken care of and evened out, entailing that the pulse and shock wave in the hybrid powertrain is avoided, entailing that the driving comfort in the vehicle increases.
  • the torque of the electric machine is increased step by step during the torque limitation. This means that any gap and torsion spring effects in the powertrain are taken care of and evened out, entailing that the pulse and shock wave in the hybrid powertrain are avoided, so that the driving comfort in the vehicle increases.
  • Fig. 1 shows a schematic side view of a vehicle with a powertrain according to the present invention
  • Fig. 2 shows a schematic side view of a powertrain according to the present invention
  • Fig. 3 shows a diagram of the brake pedal position and torque in the method to brake the vehicle with the hybrid powertrain according to the present invention
  • Fig. 4 shows a flow chart of the method to brake the vehicle with the hybrid power- train according to the present invention.
  • Fig. 1 shows a schematic side view of a vehicle 1 , comprising a hybrid powertrain 2 with a combustion engine 3 and an electric machine 4, which are connected to a gearbox 6.
  • the gearbox 6 is also connected to the driving wheels 8 of the vehicle 1 .
  • the driving wheels 8 are equipped with wheel brakes 9.
  • Fig. 2 shows a schematic view of a hybrid powertrain 2, comprising a combustion engine 3 and an electric machine 4, which are connected to an input shaft 10 of the gearbox 6.
  • the combustion engine 3 may be connected to and disconnected from the input shaft 10 via a coupling device 12, which may be manually and/or automatically manoeuvrable.
  • the gearbox 6 may be any gearbox 6, but preferably it is a combined manual and automatic gearbox 6 of split type and comprises a main shaft 14, a lay shaft 16, and an output shaft 18 on which one or several cogwheels 20 are arranged. Between the main shaft 14 and the output shaft 18, a retarder 22 is arranged.
  • the output shaft 18 is connected to a final gear 24, which in turn is connected to the driving wheels 8 of the vehicle 1 , which are equipped with wheel brakes 9.
  • An electronic control device 26 is connected to the combustion engine 3, the cou- pling device 12, the electric machine 4, the gearbox 6 and the wheel brakes 9 via electrical conductors 28.
  • a brake pedal 29 is connected to the control device to impact the electric machine 4 and the wheel brakes 9. Instead of transmitting signals through the electrical conductors 28, signals between the electronic control device 26 and the combustion engine 3, the coupling device 12, the electric machine 4, the gearbox 6, the wheel brakes 9 and the brake pedal 29 may be transmitted wirelessly.
  • the electronic control device 26 may comprise a memory M and a computer program P. It is also possible to connect a computer 30 to the control device 26.
  • Fig. 3 shows a diagram of the brake pedal position and torque in the method to con- trol the hybrid powertrain 2 according to the present invention.
  • the top solid curve represents the position of the brake pedal 29.
  • the bottom solid curve represents the torque of the electric machine 4 when braking the vehicle 1 .
  • the driver of the vehicle 1 presses the brake pedal 29, which is thus moved from a first position D1 towards a second position D2.
  • the brake pedal reaches the position D2 at the point in time t2.
  • the combustion engine 3 is disconnected from the input shaft 10 of the gearbox 6 via the coupling device 12, which takes place at the point in time t1 .
  • the brake pedal position in the second position D2 or the brake pedal's acceleration when it leaves the position D1 , corresponds to a very sharp brake, the wheel brakes 9 of the vehicle 1 are activated.
  • the electric machine 4 When the brake pedal 29 is pressed, and thus activated, at the point in time t1 , the electric machine 4 is also switched to generator operation to initiate braking and to, jointly with the wheel brakes 9, further contribute to the brak- ing of the vehicle 1 via a braking torque from the electric machine 4 acting on the powertrain 2.
  • a signal is sent from the control device 26 to the electric machine 4.
  • the brake pedal 29 In the event the brake pedal 29 is activated with an acceleration and/or a force which falls below a predetermined threshold, or if the brake pedal position in the second position D2 corresponds to soft braking, only the electric machine 4 will be activated by switching to generator operation to brake the vehicle 1 via a braking torque acting on the powertrain 2. In the event the braking torque from the electric machine 4 is sufficient to brake the vehicle 1 , the wheel brakes 9 of the vehicle 1 are not activated. At the position D1 of the brake pedal 29, the braking torque TO from the electric machine 4 is substantially absent or zero.
  • the pulse and the shock wave will also elicit a swinging in the hybrid powertrain 2, due to the torsion spring effect of the shafts. This swinging will also be perceived as uncomfortable by driver and passengers of the vehicle 1 .
  • the electric machine 4 is torque- limited under controlled forms via the control device 26, after the braking has been initiated at t1 .
  • the torque limitation and time period between t1 and t3 is controlled by the electronic control device 26.
  • the point in time t4, occurring just before a torque T3 is achieved, is detected and controlled by the control device 26.
  • a number of speed sensors and elements to determine the torque are arranged in the hybrid power- train 2 to provide information about the speed and torque of the combustion engine 3, the coupling device 12, the electric machine 4 and the rotating components in the gearbox 6.
  • T e req relates to the requested torque for the electric machine 4
  • J e represents the moment of inertia of the electric machine 4.
  • 60 w represents acceleration of the driving wheels 8 of the vehicle 1 .
  • TQ represents torque from the electric machine 4.
  • Offset represents a predetermined value for the acceleration of the electric machine.
  • the lower the offset value the longer the time to absorb the gap in the powertrain.
  • the larger the gap and torsion spring effect in the hybrid powertrain 2 the longer the time period between t1 and t3, and between t4 and t5.
  • the time period between t1 and t3 is impacted by the Offset value, which may be predetermined or determined instantly via a feedback function to the control device 26.
  • the Offset value is predetermined, the predetermination is determined by empirical values for the size of the gap and the torsion spring effect, and the time it takes to even out the gap and the torsion spring effect.
  • the driver manoeuvres the brake pedal 29 from the second to the first position D1 , in order to thus complete the braking of the vehicle 1 .
  • the electric machine 4 is controlled so that the torque is reduced by a predetermined torque limitation.
  • the torque is reduced from T3 to T2. Subsequently, the electric machine 4 is controlled without torque limitation, towards a torque which represents the first position D1 of the brake pedal 29.
  • the electric machine 4 is controlled to a state with a predetermined torque limitation at the point in time t8, before the torque which represents the first position D1 of the brake pedal 29 is achieved at the point in time t9.
  • the torque of the electric machine 4 may be reduced step by step during the torque limitation, when the braking of the vehicle 1 has been completed.
  • the torque limitation is carried out during a predetermined time period, which is based on empirical values.
  • Fig. 4 shows a flow chart of the method to control the hybrid powertrain 2 according to the present invention. The method comprises the following steps:
  • step d) to control the electric machine 4 from a state without torque limitation to a state with a predetermined torque limitation, before the torque T3, representing the second position D2 of the brake pedal 29, is achieved.
  • the torque is gradually increased in the electric machine 4 during the torque limitation in step b) and/or step d).
  • the torque limitation in step b) and/or step d) is preferably carried out during a predetermined time period t1 -t3 and t4-t5, which torque limitation and time period are determined by a control signal to the electric machine 4.
  • the method also comprises the additional step, when the brake pedal 29 is manoeu- vred from the second position D2 to the first position D1 :
  • step e the method also comprises the additional step:
  • step e the method also comprises the additional step:
  • the torque is gradually reduced in the electric machine 4 during the torque limitation in step f) and/or step g).
  • step f) or step g) is preferably carried out during a predetermined time period t6-t7 and t8-t9.
  • the method also comprises the additional step: h) to disconnect the combustion engine 3 from the input shaft 10 via a coupling device 12.
  • the hybrid powertrain 2 is preferably controlled via an electronic control device 26.
  • a computer program P is provided, which may comprise procedures to control the hybrid powertrain 2 according to the present invention.
  • the computer program P may comprise procedures to brake a vehicle 1 with a hybrid powertrain 2, according to the method steps specified above.
  • the program P may be stored in an executable manner, or in a compressed manner, in a memory M and/or a read/write memory R.
  • the invention also relates to a computer program product comprising program code stored in a medium readable by a computer 30, to perform the method steps specified above, when said program code is executed in the electronic control device 26 or a computer 30 connected to the control device 26.
  • Said program code may be stored in non-volatile storage on said medium readable by a computer 30.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)
EP14866698.5A 2013-11-28 2014-11-26 Verfahren zum bremsen eines fahrzeugs mit einem hybridantrieb durch kontrollierte verwendung einer elektrischen maschine Withdrawn EP3074255A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1351412A SE538358C2 (sv) 2013-11-28 2013-11-28 Förfarande för att bromsa ett fordon med en hybriddrivlina,en hybriddrivlina och ett fordon, innefattande en sådan hybriddrivlina
PCT/SE2014/051406 WO2015080656A1 (en) 2013-11-28 2014-11-26 Method for braking a vehicle with a hybrid powertrain by controlled use of an electric machine

Publications (2)

Publication Number Publication Date
EP3074255A1 true EP3074255A1 (de) 2016-10-05
EP3074255A4 EP3074255A4 (de) 2017-11-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP14866698.5A Withdrawn EP3074255A4 (de) 2013-11-28 2014-11-26 Verfahren zum bremsen eines fahrzeugs mit einem hybridantrieb durch kontrollierte verwendung einer elektrischen maschine

Country Status (3)

Country Link
EP (1) EP3074255A4 (de)
SE (1) SE538358C2 (de)
WO (1) WO2015080656A1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017210075A1 (de) 2017-06-14 2018-12-20 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Ansteuern eines Fahrzeugantriebsstrangs
CN109591620B (zh) * 2018-11-23 2021-08-10 深圳腾势新能源汽车有限公司 电动汽车控制方法及装置、电子设备及存储介质

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10316862A1 (de) * 2003-04-11 2004-10-21 Deere & Company, Moline Antriebssystem für Fahrzeuge
KR100836038B1 (ko) * 2006-10-24 2008-06-09 현대자동차주식회사 하이브리드 전기자동차의 제동제어방법
DE112011104811B4 (de) * 2011-01-31 2023-03-02 Suzuki Motor Corporation Regenerative Steuervorrichtung und regeneratives Steuerverfahren und Hybridkraftfahrzeug
WO2012111083A1 (ja) * 2011-02-15 2012-08-23 スズキ株式会社 車両用制御装置
US8919100B2 (en) * 2011-06-06 2014-12-30 GM Global Technology Operations LLC Method of using a regenerative brake system for heating a motor vehicle catalytic converter and powering other electrical accessories
JP2013121231A (ja) * 2011-12-07 2013-06-17 Hitachi Automotive Systems Ltd 電動車両の制御装置
US8712616B2 (en) * 2012-04-26 2014-04-29 Ford Global Technologies, Llc Regenerative braking control to mitigate powertrain oscillation

Also Published As

Publication number Publication date
WO2015080656A1 (en) 2015-06-04
EP3074255A4 (de) 2017-11-08
SE538358C2 (sv) 2016-05-31
SE1351412A1 (sv) 2015-05-29

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