WO2007026769A1 - 駆動装置およびこれを備える動力出力装置 - Google Patents

駆動装置およびこれを備える動力出力装置 Download PDF

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Publication number
WO2007026769A1
WO2007026769A1 PCT/JP2006/317118 JP2006317118W WO2007026769A1 WO 2007026769 A1 WO2007026769 A1 WO 2007026769A1 JP 2006317118 W JP2006317118 W JP 2006317118W WO 2007026769 A1 WO2007026769 A1 WO 2007026769A1
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WO
WIPO (PCT)
Prior art keywords
power
shaft
power transmission
drive shaft
torque
Prior art date
Application number
PCT/JP2006/317118
Other languages
English (en)
French (fr)
Inventor
Tomokazu Yamauchi
Shoichi Sasaki
Original Assignee
Toyota Jidosha Kabushiki Kaisha
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Filing date
Publication date
Application filed by Toyota Jidosha Kabushiki Kaisha filed Critical Toyota Jidosha Kabushiki Kaisha
Priority to US11/883,567 priority Critical patent/US7749133B2/en
Priority to CN2006800218698A priority patent/CN101198804B/zh
Priority to EP06797090A priority patent/EP1921338B1/en
Publication of WO2007026769A1 publication Critical patent/WO2007026769A1/ja

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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
    • 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
    • B60K6/26—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 motors or the 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D28/00—Electrically-actuated clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
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    • 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
    • B60K6/22—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
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    • 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
    • B60K6/44—Series-parallel type
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    • 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
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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
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B60W10/101—Infinitely variable gearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
    • F16D27/10—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings
    • F16D27/108—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members
    • F16D27/112—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members with flat friction surfaces, e.g. discs
    • F16D27/115—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically
    • F16D43/20—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure
    • 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
    • B60L2210/00—Converter types
    • B60L2210/40—DC to AC converters
    • 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
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/10—Electrical machine types
    • B60L2220/14—Synchronous machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/423—Torque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/429—Current
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/502—Relating the clutch
    • F16D2500/50287—Torque control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
    • F16H3/727—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously with at least two dynamo electric machines for creating an electric power path inside the gearing, e.g. using generator and motor for a variable power torque path
    • F16H3/728—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously with at least two dynamo electric machines for creating an electric power path inside the gearing, e.g. using generator and motor for a variable power torque path with means to change ratio in the mechanical gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/304—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by electrical or magnetic force
    • F16H63/3043—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by electrical or magnetic force comprising friction clutches or brakes
    • 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
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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 drive device and a power output device including the same, and more particularly to a drive device that outputs a driving force to a drive shaft and a power output device including the drive device.
  • this type of drive device there are an electric motor, a transmission, a first fastening means for fastening and releasing a rotation shaft of the motor and an input shaft of the transmission, a rotation shaft of the motor, and a drive shaft.
  • a second fastening means for fastening Z to open and a third fastening means for fastening Z to release the output shaft and the drive shaft of the transmission have been proposed (see, for example, Patent Document 1).
  • the first fastening means and the third fastening means are fastened and the second fastening means is opened, and the transmission of the power from the electric motor to the drive shaft through the transmission and the first fastening means.
  • the third fastening means is opened and the transmission of the power of the electric motor without the transmission to the drive shaft is switched by fastening the second fastening means.
  • Patent Document 1 Japanese Unexamined Patent Application Publication No. 2005-145145
  • the driving device described above requires three fastening means, and it is necessary to smoothly fasten and release the three fastening means. This complicates the device and provides high accuracy. Control is also required.
  • One of the objects of the drive device of the present invention and the power output device including the drive device is to switch the transmission of power from the electric motor to the drive shaft with a simple configuration. Another object of the drive device and the power output device including the same according to the present invention is to smoothly switch the power to the electric motor power drive shaft without performing complicated control.
  • the drive device of the present invention and the power output device including the same employ the following means in order to achieve at least a part of the above-described object.
  • the drive device of the present invention comprises:
  • a driving device that outputs a driving force to a driving shaft, One of the rotating shafts is caused by the action of a magnetic field generated by applying a current to the stator coil and the stator that is wound around the stator and pivotally supported so as to be movable in the axial direction.
  • An electric motor having a rotor when rotated with a moving force in a direction, first power transmission means for transmitting power from the rotating shaft to the drive shaft,
  • the gist of the invention is that it comprises power transmission switching means for switching between transmission of power by the first power transmission means and transmission of power by the second power transmission means in association with movement of the rotating shaft in the axial direction.
  • the rotor of the electric motor is attached to a rotating shaft that is supported so as to be movable in the axial direction, and the magnetic field generated by applying a current to the coil of the stator is applied.
  • the power transmission switching means transmits the power from the rotation shaft to the drive shaft by the first power transmission means and the power from the rotation shaft to the drive shaft by the second power transmission means with the axial movement of the rotation shaft. Since the transmission is switched, the transmission of power by the first power transmission means and the transmission of power by the second power transmission means can be switched by the axial moving force generated according to the driving force output from the electric motor.
  • the power transmission switching means transmits power by the first power transmission device in a low torque region where the torque output from the electric motor is less than the first predetermined torque.
  • the second power transmission means may be a means for transmitting power.
  • the power transmission switching means moves the rotation shaft forward.
  • a moving force applying means for applying a moving force in a direction opposite to the one direction, and the rotating shaft connected to the driving shaft and the rotating shaft when the rotating shaft is moved in the one direction.
  • a connection release means for releasing the connection between the rotary shaft and the drive shaft when moved in the other direction may be provided.
  • the power from the electric motor can be transmitted to the drive shaft, and when a relatively large torque is output from the motor, the moving force in one direction due to the action of the magnetic field of the motor is used to disconnect the rotating shaft and the The connection with the drive shaft is released, and the power from the motor can be transmitted to the drive shaft by the second power transmission means. Therefore, the power transmission by the first power transmission means and the power transmission by the second power transmission means can be switched only by changing the torque of the electric motor.
  • the moving force applying means may be a panel that applies an urging force acting in the other direction to the rotating shaft.
  • the first power transmission means is means for transmitting the power of the rotating shaft to the drive shaft with a predetermined speed ratio
  • the second power transmission means is It may be a means capable of transmitting the power of the rotary shaft to the drive shaft with a changeable gear ratio.
  • the second power transmission means may be a means having a continuously variable transmission, a means having a stepped transmission, or a means having a torque converter. You can also In the case of having this torque converter, the second power transmission means may be means having a transmission interposed between the torque converter and the drive shaft.
  • the connection release means When the drive shaft is connected, the rotation of the drive shaft relative to the rotation of the rotary shaft due to the transmission of power in the second power transmission means is equal to the rotation speed due to the transmission of power in the first power transmission means.
  • the drive shaft against rotation Control means for controlling the second power transmission means so as to be synchronized with the rotation may be provided. In this way, from the transmission of power by the first power transmission means to the transmission of power by the second power transmission means without having to disconnect the second power transmission means at the time of power transmission by the first power transmission means. Can be smoothly switched.
  • the power output apparatus of the present invention comprises:
  • a power output device that outputs power to a drive shaft
  • One of the rotating shafts is caused by the action of a magnetic field generated by applying a current to the stator coil and the stator that is wound around the stator and pivotally supported so as to be movable in the axial direction.
  • An electric motor having a rotor when rotated with a moving force in a direction, first power transmission means for transmitting power from the rotating shaft to the drive shaft,
  • Power transmission switching means for switching between transmission of power by the first power transmission means and transmission of power by the second power transmission means in accordance with the movement of the rotating shaft in the axial direction; an internal combustion engine;
  • Power power input / output means connected to the output shaft of the internal combustion engine and the drive shaft and capable of outputting at least part of the power of the internal combustion engine power to the drive shaft with input / output of electric power and power;
  • the rotor of the electric motor is attached to a rotating shaft that is supported so as to be movable in the axial direction, and a magnetic field generated by applying an electric current to the stator coil is used.
  • Power is output from the motor to the rotating shaft with a moving force in one direction of the rotating shaft.
  • the power transmission switching means transmits the power from the rotation shaft to the drive shaft by the first power transmission means and the power from the rotation shaft to the drive shaft by the second power transmission means with the axial movement of the rotation shaft. Therefore, the transmission of power by the first power transmission means and the transmission of power by the second power transmission means can be switched by the axial moving force generated according to the driving force output from the motor. it can. As a result, it is not necessary to use a large number of fastening means, and a simple configuration can be achieved. There is no need to control. In other words, power transmission can be switched smoothly without complicated control.
  • the power transmission switching means transmits power by the first power transmission means in a low torque region where the torque output by the electric motor is less than a first predetermined torque.
  • the second power transmission means is a means for transmitting power. You can also. By configuring the first power transmission means to be suitable for the low torque region and configuring the second power transmission means to be suitable for the high torque region, the motor can be operated in a more appropriate operating range. .
  • the power transmission switching unit includes a moving force applying unit that applies a moving force to the rotating shaft in a direction opposite to the one direction, and the rotating shaft includes the rotating shaft.
  • a connection release means for connecting the rotary shaft and the drive shaft when moved in one direction and for releasing the connection between the rotary shaft and the drive shaft when the rotary shaft is moved in the other direction; It can also be a means provided with. In this way, when a relatively small torque is output from the electric motor, the rotating shaft and the drive shaft are connected by the connection releasing means using the moving force in the other direction by the moving force applying means, and the first power transmission means is used.
  • the drive shaft and the drive are driven by the disconnection means using the unidirectional moving force due to the action of the magnetic field of the motor.
  • the connection with the shaft is released, and the power from the motor can be transmitted to the drive shaft by the second power transmission means. Therefore, the power transmission by the first power transmission means and the power transmission by the second power transmission means can be switched only by changing the torque of the electric motor.
  • the moving force applying means may be a panel that applies a biasing force acting in the other direction to the rotating shaft.
  • the first power transmission means is means for transmitting the power of the rotating shaft to the drive shaft at a predetermined speed ratio
  • the second power transmission means is changeable. It may be a means capable of transmitting the power of the rotary shaft to the drive shaft with a proper speed ratio. In this way, power transmission by the first power transmission means can be performed with a predetermined gear ratio, and power transmission by the second power transmission means can be changed. This can be done with a possible gear ratio. In this case, when the rotary shaft and the drive shaft are connected by the connection release means, the rotation of the drive shaft relative to the rotation of the rotary shaft due to power transmission in the second power transmission means is the first power.
  • Control means for controlling the second power transmission means so as to synchronize with the rotation of the drive shaft with respect to the rotation of the rotation speed due to the transmission of power in the transmission means may be provided. In this way, from the transmission of power by the first power transmission means to the transmission of power by the second power transmission means without having to separate the second power transmission means at the time of transmission of power by the first power transmission means. Can be smoothly switched.
  • FIG. 1 is a configuration diagram showing an outline of a configuration of a drive device 20 as one embodiment of the present invention.
  • FIG. 2 is an explanatory diagram showing an example of the relationship between torque characteristics of the motor 30, torque output by the continuously variable transmission 50 and output to the drive shaft 22, and switching torque of the clutch 40.
  • FIG. 3 is a configuration diagram showing an example of a configuration of a power output device 70 of an embodiment.
  • FIG. 4 is a configuration diagram showing an outline of a configuration of a driving device 20B according to a modification.
  • FIG. 5 is a configuration diagram showing an outline of a configuration of a driving device 20C according to a modification.
  • FIG. 6 is a configuration diagram showing an outline of a configuration of a driving device 20D according to a modification.
  • FIG. 7 is a configuration diagram showing an outline of a configuration of a driving device 20E according to a modification.
  • FIG. 1 is a configuration diagram showing an outline of the configuration of a drive device 20 as an embodiment of the present invention.
  • the driving device 20 of the embodiment connects or disconnects the motor 30 driven by the electric power from the battery 38 and the rotating shaft 24 and the driving shaft 22 which are output shafts of the motor 30.
  • An electronic control unit 60 for controlling.
  • the motor 30 is connected to the rotary shaft 24 and has a permanent magnet attached to the outer peripheral surface thereof, and is arranged so as to surround the rotor 31 with a slight gap from the outer periphery of the rotor 31.
  • the rotary shaft 24 of the embodiment is supported so as to be able to move slightly in the left-right direction in the drawing, and a panel 36 for applying a rightward biasing force in the drawing is attached to the rotor 31 of the motor 30. Yes. Therefore, the rotating shaft 24 is pushed rightward in the drawing by the urging force of the panel 36 acting via the rotor 31.
  • the rotor 31 of the motor 30 Since the rotor 31 of the motor 30 generates a rotating magnetic field by applying a three-phase alternating current to the three-phase coil 33 of the stator 32, it generates a rotating torque as a normal motor and also functions as a solenoid. Thrust force is generated in 24 axial directions. This thrust force increases according to the strength of the magnetic field generated in the stator 32.
  • the rotary shaft 24 of the embodiment is supported so as to be slightly movable in the axial direction, if the thrust force acts in a direction against the urging force of the panel 36, the stator 24 Depending on the strength of the magnetic field generated in 32, the rotary shaft 24 can be moved in the axial direction. Since the magnetic field strength of the stator 32 is proportional to the magnitude of torque output from the motor 30, the rotary shaft 24 can be moved in the axial direction according to the magnitude of torque output from the motor 30. .
  • the clutch 40 includes a plurality of disks on the input side connected to the rotating shaft 24 and a plurality of disks on the output side connected to the drive shaft 22, and the rotating shaft 24 is driven by the urging force of the panel 36.
  • 3 Moves to the left in the figure against the urging force of 6 to release the connection between the rotary shaft 24 and the drive shaft 22 when the frictional force between the multiple disks on the input side and the multiple disks on the output side is released. To do.
  • the continuously variable transmission 50 is configured, for example, as a toroidal continuously variable transmission or a belt-type continuously variable transmission, and its input shaft is connected to the rotary shaft 24, and its output The shaft is connected to 22 via a gear mechanism 52.
  • the gear mechanism 52 is composed of, for example, a planetary gear, and the overall gear ratio between the continuously variable transmission 50 and the gear mechanism 52 is a value when the continuously variable transmission 50 has a maximum speed ratio.
  • the gear ratio is set so that the rotational speed of the rotary shaft 24 matches the rotational speed of the drive shaft 22. Therefore, when the rotary shaft 24 and the drive shaft 22 are connected by the clutch 40, the torque from the motor 30 is clutched by setting the continuously variable transmission 50 to the maximum speed ratio. It is possible to output to the drive shaft 22 via 40.
  • the electronic control unit 60 is configured as a microcomputer centering on the CPU 62, which is a central processing circuit.
  • the electronic control unit 60 temporarily stores ROM 64 for storing processing programs and the like. RAM66, input / output ports (not shown), etc.
  • the electronic control unit 60 includes a rotational position from the rotational position detection sensor 34 for detecting the rotational position of the rotor 31 of the motor 30 and a phase current applied to the motor 30 with current sensor force (not shown) attached to the inside of the inverter 37.
  • the torque command as a required torque to be output from the motor 30 is input via the input port.
  • output control ports for switching control signals to a plurality of switching elements of the inverter 37 and drive signals to an actuator (not shown) for changing the gear ratio of the continuously variable transmission 50 are provided at the output port. Is being output via.
  • the rotating shaft 24 moves to the left in the figure against the biasing force of the panel 36 by this thrust force, and the connection between the rotating shaft 24 and the drive shaft 22 by the clutch 40 is released. Therefore, when the electronic control unit 60 controls the drive of the motor 30 based on the torque command, the torque output from the motor 30 is output to the drive shaft 22 through the continuously variable transmission 50 and the gear mechanism 52. Will be. At this time, if the gear ratio of the continuously variable transmission 50 is changed to the deceleration side, the torque output from the motor 30 is amplified and output to the drive shaft 22.
  • FIG. 2 is an explanatory diagram showing an example of the relationship between the torque characteristics of the motor 30, the torque shifted by the continuously variable transmission 50 and output to the drive shaft 22, and the switching torque of the clutch 40.
  • the torque at which the clutch 40 is released due to the thrust force acting on the port 31 is smaller than the maximum torque that can be output from the motor 30 (for example, half of the maximum torque, hereinafter referred to as “transmission switching torque”).
  • transmission switching torque half of the maximum torque
  • the torque from the motor 30 can be output to the drive shaft 22 with a shift by the continuously variable transmission 50 in a state where the connection between the rotary shaft 24 and the drive shaft 22 by the clutch 40 is released. Therefore, when a high torque is required for the drive shaft 22, the motor 30 is driven with the torque command as a torque greater than the transmission switching torque, and the torque from the motor 30 is set to the required torque. Change the gear ratio. When the torque command of the motor 30 is less than the transmission switching torque, the rotary shaft 24 and the drive shaft 22 are connected by the clutch 40, so the gear ratio of the continuously variable transmission 50 is changed to the maximum speed increase side. Thus, when the continuously variable transmission 50 and the gear mechanism 52 are interposed, the rotational speed of the rotary shaft 24 and the rotational speed of the drive shaft 22 may be matched.
  • the rotary shaft 24 and the drive shaft 22 that are output shafts of the motor 30 are connected by the clutch 40. Connect and output the torque from the motor 30 to the drive shaft 22 via the clutch 40, and when the torque higher than the transmission switching torque is output from the motor 30, the connection between the rotary shaft 24 and the drive shaft 22 by the clutch 40 is released.
  • the torque from the motor 30 can be output to the drive shaft 22 with the shift of the continuously variable transmission 50.
  • the rotary shaft 24 and the drive shaft 22 are automatically connected and disconnected by the clutch 40, and the drive shaft is connected via the clutch 40.
  • the transmission path of torque output to 22 and the transmission path of torque output to the drive shaft 22 via the continuously variable transmission 50 can be switched.
  • the torque output path from the motor 30 to the drive shaft 22 can be switched with a simple configuration, and the torque output path from the motor 30 to the drive shaft 22 can be switched without performing complicated control. it can.
  • FIG. 3 is a configuration diagram showing an example of the configuration of the power output apparatus 70 of the embodiment.
  • the power output device 70 of the embodiment includes the drive device 20 of the above-described embodiment, and a power device 72 connected to the rotary shaft 24 of the drive device 20 via the output shaft 74.
  • the power unit 72 includes an engine 76 that outputs power using hydrocarbon fuels such as gasoline and light oil, and an engine 76
  • a carrier 84 for bundling a plurality of pinion gears 83 is connected to the crankshaft 77 of the planetary gear
  • a planetary gear mechanism 80 having a ring gear 82 connected to the output shaft 74 and the sun gear 81 of the planetary gear mechanism 80 is powered.
  • a motor 78 connected to the battery 38 via an inverter 79.
  • the power output from the engine 76 and the power input / output from the motor 78 are integrated and output to the rotary shaft 24, which is driven by the torque output from the motor 30.
  • the transmission path to the shaft 22 is switched and output to the drive shaft 22. Therefore, when the rotary shaft 24 and the drive shaft 22 are connected by the clutch 40, the torque that is the sum of the torque output from the motor 30 and the torque output from the power output device 70 to the output shaft 74 is directly driven.
  • the torque output from the motor 30 and the torque output from the power output device 70 to the output shaft 74 when the connection between the rotary shaft 24 and the drive shaft 22 by the clutch 40 is released. Can be output to the drive shaft 22 with a shift according to the gear ratio of the continuously variable transmission 50.
  • the torque from the motor 30 when the torque output from the power device 72 to the output shaft 74 is output from the motor 30 less than the transmission switching torque, the torque from the motor 30 Is output directly to the drive shaft 22 as a sum of the torque to the drive shaft 22 and the torque higher than the transmission switching torque is output from the motor 30 to the drive shaft 22 as the sum of the torque from the motor 30 is accompanied by a shift of the continuously variable transmission 50. Can be output.
  • the clutch 40 automatically connects and disconnects the rotary shaft 24 and the drive shaft 22 by simply changing the magnitude of the output torque from the motor 30, and the power device 72 outputs the output shaft 74.
  • the rotating shaft 24 is moved by receiving a thrust force in the left direction in FIG. 1 with respect to the magnetic field of the stator 32.
  • the shaft 24 may be moved by receiving a thrust force in the right direction in FIG. in this case
  • the panel 36 may be attached so as to urge the rotor 31 so that the connection between the rotary shaft 24 and the drive shaft 22 is released by the clutch 40 when the rotary shaft 24 receives the thrust force and moves.
  • the transmission ratio of the continuously variable transmission 50 is The speed of the rotary shaft 24 and the speed of the drive shaft 22 may be matched via the continuously variable transmission 50 and the gear mechanism 52 when the speed ratio is different from the maximum speed increasing side.
  • the force that causes the gear mechanism 52 to be interposed between the continuously variable transmission 50 and the driving shaft 22 is not provided with such a gear mechanism 52. It is assumed that the continuously variable transmission 50 and the drive shaft 22 are directly connected.
  • the rotary shaft 24 that is the output shaft of the motor 30 is a continuously variable transmission that is a toroidal-type continuously variable transmission or a belt-type continuously variable transmission.
  • the transmission 50 is connected, the continuously variable transmission of another type may be connected or the continuously variable transmission as illustrated in the drive device 20B of the modification of FIG.
  • a stepped transmission 50B may be connected.
  • the gear mechanism 52B connected to the stepped transmission 5OB has the highest speed shift stage of the stepped transmission or other speed when the rotary shaft 24 and the drive shaft 22 are connected by the clutch 40. Set the gear ratio so that the rotational speed of the rotary shaft 24 matches the rotational speed of the drive shaft 22 via the stepped transmission and the gear mechanism 52B at the shift stage.
  • the continuously variable transmission 50 is connected to the rotating shaft 24 that is the output shaft of the motor 30. 5 and the drive shaft 22 are connected, the rotational speed of the rotary shaft 24 and the rotational speed of the drive shaft 22 only need to coincide with each other. Therefore, as illustrated in the drive device 20C of the modified example of FIG.
  • a torque converter 51 may be connected. In this case, since the torque converter 51 can slide, the gear mechanism 52 can be omitted.
  • a continuously variable transmission 50D may be provided between the torque converter 51 and the drive shaft 22 as illustrated in the drive device 20D of the modified example of FIG.
  • a continuously variable transmission 50E may be provided between the motor 30 and the torque converter 51.
  • the present invention can be used in the manufacturing industry of drive devices and power output devices.

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Abstract

　モータ３０の出力軸である回転軸２４と駆動軸２２とを接続したり接続の解除を行なうクラッチ４０と、回転軸２４に入力軸を接続すると共に駆動軸２２にギヤ機構５２を介して出力軸を接続した無段変速機５０とを設け、モータ３０のロータ３１にモータ３０からのトルクが小さいときにクラッチ４０により回転軸２４と駆動軸２２とが接続されるようにバネ３６を設ける。モータ３０からのトルクを大きくすると、そのスラスト力によりバネ３６の付勢力に抗して回転軸２４を移動させてクラッチ４０による回転軸２４と駆動軸２２との接続を解除し、モータ３０からのトルクを無段変速機５０により変速して駆動軸２２に出力する。

Description

明 細 書
駆動装置およびこれを備える動力出力装置
技術分野
[0001] 本発明は、駆動装置およびこれを備える動力出力装置に関し、詳しくは、駆動軸に 駆動力を出力する駆動装置およびこれを備える動力出力装置に関する。
背景技術
[0002] 従来、この種の駆動装置としては、電動機と、変速機と、電動機の回転軸と変速機 の入力軸とを締結 Z開放する第 1締結手段と、電動機の回転軸と駆動軸とを締結 Z 開放する第 2締結手段と、変速機の出力軸と駆動軸とを締結 Z開放する第 3締結手 段とを備えるものが提案されている (例えば、特許文献 1参照)。この装置では、第 1 締結手段および第 3締結手段を締結すると共に第 2締結手段を開放することによる変 速機を介在させての電動機からの動力の駆動軸への伝達と、第 1締結手段および第 3締結手段を開放すると共に第 2締結手段を締結することによる変速機なしの電動機 力 の動力の駆動軸への伝達と、を切り替えている。
特許文献 1 :特開 2005— 145145号公報
発明の開示
[0003] し力しながら、上述の駆動装置では、 3つの締結手段を必要とすると共にこの 3つの 締結手段の締結，開放を滑らかに行なう必要があり、装置が複雑ィ匕すると共に精度の 高い制御も必要となる。
[0004] 本発明の駆動装置およびこれを備える動力出力装置は、簡易な構成で電動機から 駆動軸への動力の伝達を切り替えることを目的の一つとする。また、本発明の駆動装 置およびこれを備える動力出力装置は、複雑な制御を行なうことなく電動機力 駆動 軸への動力の切替を滑らかに行なうことを目的の一つとする。
[0005] 本発明の駆動装置およびこれを備える動力出力装置は、上述の目的の少なくとも 一部を達成するために以下の手段を採った。
[0006] 本発明の駆動装置は、
駆動軸に駆動力を出力する駆動装置であって、 コイルが卷回された固定子と、軸方向への移動が可能に軸支された回転軸に取り 付けられ前記固定子のコイルに電流を印加することにより生じる磁界の作用により該 回転軸の一方向への移動力を伴って回転すると回転子と、を有する電動機と、 前記回転軸から前記駆動軸へ動力を伝達する第 1動力伝達手段と、
前記回転軸から前記駆動軸へ動力を伝達する前記第 1動力伝達手段とは異なる 第 2動力伝達手段と、
前記回転軸の軸方向への移動を伴って前記第 1動力伝達手段による動力の伝達 と前記第 2動力伝達手段による動力の伝達とを切り替える動力伝達切替手段と、 を備えることを要旨とする。
[0007] この本発明の駆動装置では、電動機の回転子を軸方向への移動が可能に軸支さ れた回転軸に取り付け、固定子のコイルに電流を印加することにより生じる磁界の作 用により回転軸の一方向への移動力を伴って電動機から回転軸に動力を出力する。 このとき、動力伝達切替手段は、回転軸の軸方向の移動を伴って第 1動力伝達手段 による回転軸から駆動軸へ動力の伝達と第 2動力伝達手段による回転軸から駆動軸 への動力の伝達とを切り替えるから、電動機から出力する駆動力に応じて発生する 軸方向の移動力により第 1動力伝達手段による動力の伝達と第 2動力伝達手段によ る動力の伝達とを切り替えることができる。この結果、多数の締結手段を用いる必要 力 く簡易な構成とすることができ、多数の締結手段の締結 ·開放を滑らかに制御す る必要もない。即ち、複雑な制御なしに滑らかに動力の伝達を切り替えることができる
[0008] こうした本発明の駆動装置において、前記動力伝達切替手段は、前記電動機から 出力するトルクが第 1の所定トルク未満となる低トルク領域では前記第 1動力伝達手 段による動力の伝達を行ない、前記電動機から出力するトルクが前記第 1の所定トル ク以上の第 2の所定トルク以上となる高トルク領域では前記第 2動力伝達手段による 動力の伝達を行なう手段であるものとすることもできる。第 1動力伝達手段を低トルク 領域に適する伝達とすると共に第 2動力伝達手段を高トルク領域に適する伝達となる よう構成することにより、電動機をより適正な運転範囲で運転することができる。
[0009] また、本発明の駆動装置において、前記動力伝達切替手段は、前記回転軸を前 記一方向とは逆の他方向に移動力を付与する移動力付与手段と、前記回転軸を前 記一方向に移動させたときに前記回転軸と前記駆動軸と接続すると共に前記回転軸 を前記他方向に移動させたときに前記回転軸と前記駆動軸との接続を解除する接続 解除手段と、を備える手段であるものとすることもできる。こうすれば、電動機力 比較 的小さなトルクを出力するときには、移動力付与手段による他方向の移動力を用いて 接続解除手段により前記回転軸と前記駆動軸とを接続し、第 1動力伝達手段により 電動機からの動力を駆動軸に伝達することができ、電動機力 比較的大きなトルクを 出力するときには、電動機の磁界の作用による一方向の移動力を用 、て接続解除手 段により前記回転軸と前記駆動軸との接続を解除し、第 2動力伝達手段により電動 機からの動力を駆動軸に伝達することができる。したがって、電動機のトルクを変化 するだけで第 1動力伝達手段による動力の伝達と第 2動力伝達手段による動力の伝 達とを切り替えることができる。この場合、前記移動力付与手段は、前記回転軸に前 記他方向に作用する付勢力を付与するパネであるものとすることもできる。
[0010] さらに、本発明の駆動装置において、前記第 1動力伝達手段は所定の変速比をも つて前記回転軸の動力を前記駆動軸に伝達する手段であり、前記第 2動力伝達手 段は変更可能な変速比をもって前記回転軸の動力を前記駆動軸に伝達可能な手段 であるものとすることもできる。こうすれば、第 1動力伝達手段による動力の伝達は所 定の変速比をもって行なうことができ、第 2動力伝達手段による動力の伝達は変更可 能な変速比をもって行なうことができる。この場合、前記第 2動力伝達手段は、無段 変速機を有する手段であるものとしたり、有段変速機を有する手段であるものとするこ ともできるし、トルクコンバータを有する手段であるものとすることもできる。このトルクコ ンバータを有する場合、前記第 2動力伝達手段は、前記トルクコンバータと前記駆動 軸とに介在する変速機を有する手段であるものとすることもできる。
[0011] こうした第 2動力伝達手段が変更可能な変速比をもって回転軸の動力を駆動軸に 伝達可能な手段である態様の本発明の駆動装置において、前記接続解除手段によ り前記回転軸と前記駆動軸とが接続されているときには、前記第 2動力伝達手段に おける動力の伝達による前記回転軸の回転に対する前記駆動軸の回転が前記第 1 動力伝達手段における動力の伝達による前記回転数の回転に対する前記駆動軸の 回転に同期するよう前記第 2動力伝達手段を制御する制御手段を備えるものとするこ ともできる。こうすれば、第 1動力伝達手段による動力の伝達の際に第 2動力伝達手 段を切り離さなくてもよぐ第 1動力伝達手段による動力の伝達から第 2動力伝達手 段による動力の伝達への切り替えを滑らかに行なうことができる。
[0012] 本発明の動力出力装置は、
駆動軸に動力を出力する動力出力装置であって、
コイルが卷回された固定子と、軸方向への移動が可能に軸支された回転軸に取り 付けられ前記固定子のコイルに電流を印加することにより生じる磁界の作用により該 回転軸の一方向への移動力を伴って回転すると回転子と、を有する電動機と、 前記回転軸から前記駆動軸へ動力を伝達する第 1動力伝達手段と、
前記回転軸から前記駆動軸へ動力を伝達する前記第 1動力伝達手段とは異なる 第 2動力伝達手段と、
前記回転軸の軸方向への移動を伴って前記第 1動力伝達手段による動力の伝達 と前記第 2動力伝達手段による動力の伝達とを切り替える動力伝達切替手段と、 内燃機関と、
前記内燃機関の出力軸と前記駆動軸とに接続され、電力と動力との入出力を伴つ て前記内燃機関力 の動力の少なくとも一部を前記駆動軸に出力可能な電力動力 入出力手段と、
を備えることを要旨とする。
[0013] この本発明の動力出力装置では、電動機の回転子を軸方向への移動が可能に軸 支された回転軸に取り付け、固定子のコイルに電流を印加することにより生じる磁界 の作用により回転軸の一方向への移動力を伴って電動機から回転軸に動力を出力 する。このとき、動力伝達切替手段は、回転軸の軸方向の移動を伴って第 1動力伝 達手段による回転軸から駆動軸へ動力の伝達と第 2動力伝達手段による回転軸から 駆動軸への動力の伝達とを切り替えるから、電動機から出力する駆動力に応じて発 生する軸方向の移動力により第 1動力伝達手段による動力の伝達と第 2動力伝達手 段による動力の伝達とを切り替えることができる。この結果、多数の締結手段を用いる 必要がなく簡易な構成とすることができ、多数の締結手段の締結 ·開放を滑らかに制 御する必要もない。即ち、複雑な制御なしに滑らかに動力の伝達を切り替えることが できる。
[0014] こうした本発明の動力出力装置において、前記動力伝達切替手段は、前記電動機 力 出力するトルクが第 1の所定トルク未満となる低トルク領域では前記第 1動力伝達 手段による動力の伝達を行ない、前記電動機から出力するトルクが前記第 1の所定ト ルク以上の第 2の所定トルク以上となる高トルク領域では前記第 2動力伝達手段によ る動力の伝達を行なう手段であるものとすることもできる。第 1動力伝達手段を低トル ク領域に適する伝達とすると共に第 2動力伝達手段を高トルク領域に適する伝達とな るよう構成することにより、電動機をより適正な運転範囲で運転することができる。
[0015] また、本発明の動力出力装置において、前記動力伝達切替手段は、前記回転軸 を前記一方向とは逆の他方向に移動力を付与する移動力付与手段と、前記回転軸 を前記一方向に移動させたときに前記回転軸と前記駆動軸と接続すると共に前記回 転軸を前記他方向に移動させたときに前記回転軸と前記駆動軸との接続を解除する 接続解除手段と、を備える手段であるものとすることもできる。こうすれば、電動機から 比較的小さなトルクを出力するときには、移動力付与手段による他方向の移動力を 用いて接続解除手段により前記回転軸と前記駆動軸とを接続し、第 1動力伝達手段 により電動機力もの動力を駆動軸に伝達することができ、電動機力も比較的大きなト ルクを出力するときには、電動機の磁界の作用による一方向の移動力を用いて接続 解除手段により前記回転軸と前記駆動軸との接続を解除し、第 2動力伝達手段によ り電動機からの動力を駆動軸に伝達することができる。したがって、電動機のトルクを 変化するだけで第 1動力伝達手段による動力の伝達と第 2動力伝達手段による動力 の伝達とを切り替えることができる。この場合、前記移動力付与手段は、前記回転軸 に前記他方向に作用する付勢力を付与するパネであるものとすることもできる。
[0016] さらに、本発明の動力出力装置において、前記第 1動力伝達手段は所定の変速比 をもって前記回転軸の動力を前記駆動軸に伝達する手段であり、前記第 2動力伝達 手段は変更可能な変速比をもって前記回転軸の動力を前記駆動軸に伝達可能な手 段であるものとすることもできる。こうすれば、第 1動力伝達手段による動力の伝達は 所定の変速比をもって行なうことができ、第 2動力伝達手段による動力の伝達は変更 可能な変速比をもって行なうことができる。この場合、前記接続解除手段により前記 回転軸と前記駆動軸とが接続されているときには、前記第 2動力伝達手段における 動力の伝達による前記回転軸の回転に対する前記駆動軸の回転が前記第 1動力伝 達手段における動力の伝達による前記回転数の回転に対する前記駆動軸の回転に 同期するよう前記第 2動力伝達手段を制御する制御手段を備えるものとすることもで きる。こうすれば、第 1動力伝達手段による動力の伝達の際に第 2動力伝達手段を切 り離さなくてもよぐ第 1動力伝達手段による動力の伝達から第 2動力伝達手段による 動力の伝達への切り替えを滑らかに行なうことができる。
図面の簡単な説明
[0017] [図 1]本発明の一実施例としての駆動装置 20の構成の概略を示す構成図である。
[図 2]モータ 30のトルク特性と無段変速機 50により変速されて駆動軸 22に出力され たトルクとクラッチ 40の切替トルクとの関係の一例を示す説明図である。
[図 3]実施例の動力出力装置 70の構成の一例を示す構成図である。
[図 4]変形例の駆動装置 20Bの構成の概略を示す構成図である。
[図 5]変形例の駆動装置 20Cの構成の概略を示す構成図である。
[図 6]変形例の駆動装置 20Dの構成の概略を示す構成図である。
[図 7]変形例の駆動装置 20Eの構成の概略を示す構成図である。
発明を実施するための最良の形態
[0018] 次に、本発明を実施するための最良の形態を実施例を用いて説明する。
[0019] 図 1は、本発明の一実施例としての駆動装置 20の構成の概略を示す構成図である 。実施例の駆動装置 20は、図示するように、バッテリ 38からの電力により駆動するモ ータ 30と、モータ 30の出力軸である回転軸 24と駆動軸 22とを接続したり接続の解除 を行なうクラッチ 40と、回転軸 24に入力軸が接続された無段変速機 50と、無段変速 機 50の出力軸に接続されると共に駆動軸 22に接続されたギヤ機構 52と、装置全体 をコントロールする電子制御ユニット 60と、を備える。
[0020] モータ 30は、回転軸 24に接続されて外周面に永久磁石が取り付けられたロータ 3 1と、ロータ 31の外周と僅かなギャップをもってロータ 31を取り囲むように配置され三 相コイル 33が卷回されたステータ 32と、を備える周知の同期発電電動機として構成 されており、インバータ 37を介してバッテリ 38に接続されている。実施例の回転軸 24 は、図中左右方向への若干の軸移動が可能に支持されており、モータ 30のロータ 3 1には図中右方向の付勢力を付与するパネ 36が取り付けられている。したがって、回 転軸 24はロータ 31を介して作用するパネ 36の付勢力によって図中右方向に押され る。モータ 30のロータ 31は、ステータ 32の三相コイル 33に三相交流を印加すること により回転磁界を生じさせると、通常のモータとしての回転トルクを生じると共にソレノ イドとしても機能することから回転軸 24の軸方向にスラスト力を生じる。このスラスト力 はステータ 32に生じさせる磁界の強さに応じて大きくなる。前述したように、実施例の 回転軸 24は、軸方向に若干の移動が可能に支持されているから、スラスト力がパネ 3 6の付勢力に抗する方向に作用するようにすれば、ステータ 32に生じさせる磁界の 強さ応じて回転軸 24をその軸方向に移動させることができる。なお、ステータ 32の磁 界の強さはモータ 30から出力するトルクの大きさに比例するから、モータ 30から出力 するトルクの大きさに応じて回転軸 24をその軸方向に移動させることができる。
[0021] クラッチ 40は、回転軸 24に連結された入力側の複数のディスクと駆動軸 22に連結 された出力側の複数のディスクとにより構成されており、パネ 36の付勢力により回転 軸 24が図中右方向に移動して入力側の複数のディスクと出力側の複数のディスクと に摩擦力を付与しているときに回転軸 24と駆動軸 22とを接続し、回転軸 24がパネ 3 6の付勢力に抗して図中左側に移動して入力側の複数のディスクと出力側の複数の ディスクとの摩擦力を解除したときに回転軸 24と駆動軸 22との接続を解除する。
[0022] 無段変速機 50は、例えば、トロイダル式の無段変速機やベルト式の無段変速機と して構成されており、その入力軸は回転軸 24に接続されており、その出力軸はギヤ 機構 52を介して 22に接続されて 、る。
[0023] ギヤ機構 52は、例えば、遊星歯車により構成されており、無段変速機 50が最大増 速の変速比のときに無段変速機 50とギヤ機構 52との全体のギヤ比が値 1となるよう、 即ち回転軸 24の回転数と駆動軸 22の回転数とがー致するようそのギヤ比が設定さ れている。したがって、クラッチ 40により回転軸 24と駆動軸 22とを接続しているときに は、無段変速機 50を最大増速の変速比となるようにすることにより、モータ 30からのト ルクをクラッチ 40を介して駆動軸 22に出力することができるようになる。 [0024] 電子制御ユニット 60は、中央演算処理回路である CPU62を中心とするマイクロコ ンピュータとして構成されており、 CPU62の他に、処理プログラムなどを記憶する RO M64やデータを一時的に記憶する RAM66,図示しない入出力ポートなどを備える 。電子制御ユニット 60には、モータ 30のロータ 31の回転位置を検出する回転位置 検出センサ 34からの回転位置やインバータ 37の内部に取り付けられた図示しない 電流センサ力ものモータ 30に印加される相電流，モータ 30から出力すべき要求トル クとしてのトルク指令などが入力ポートを介して入力されている。また、電子制御ュ- ット 60からは、インバータ 37の複数のスイッチング素子へのスイッチング制御信号や 無段変速機 50の変速比を変更するための図示しないァクチユエータへの駆動信号 などが出力ポートを介して出力されている。
[0025] 次に、こうして構成された駆動装置 20の動作について説明する。モータ 30のトルク 指令が小さいときには、ステータ 32に生じる磁界の強さも小さいものとなるから、ロー タ 31に生じるスラスト力も小さい。このため、クラッチ 40はパネ 36の付勢力により回転 軸 24と駆動軸 22とを接続する状態となる。したがって、電子制御ユニット 60によりト ルク指令に基づいてモータ 30を駆動制御すると、モータ 30から出力されたトルクはク ラッチ 40を介して駆動軸 22に出力される。一方、モータ 30のトルク指令が大きいとき には、ステータ 32に生じる磁界の強さも大きいものとなるから、ロータ 31に生じるスラ スト力も大きい。このため、このスラスト力により回転軸 24はパネ 36の付勢力に抗して 図中左側に移動し、クラッチ 40による回転軸 24と駆動軸 22との接続を解除する。し たがって、電子制御ユニット 60によりトルク指令に基づいてモータ 30を駆動制御する と、モータ 30から出力されたトルクは無段変速機 50とギヤ機構 52とを介して駆動軸 2 2に出力されることになる。このとき、無段変速機 50の変速比を減速側に変更すれば 、モータ 30から出力されたトルクは増幅されて駆動軸 22に出力される。
[0026] 図 2は、モータ 30のトルク特性と無段変速機 50により変速されて駆動軸 22に出力 されたトルクとクラッチ 40の切替トルクとの関係の一例を示す説明図である。いま、口 ータ 31に作用するスラスト力によってクラッチ 40の接続が解除されるトルクがモータ 3 0から出力可能な最大トルクより小さなトルク (例えば最大トルクの半分、以下、「伝達 切替トルク」という。）となるように付勢力を付与するパネ 36を設計すれば、モータ 30 のトルク指令がこの伝達切替トルク未満のときにはクラッチ 40により回転軸 24と駆動 軸 22とを接続した状態でモータ 30からのトルクを駆動軸 22に出力し、モータ 30のト ルク指令がこの伝達切替トルク以上のときにはクラッチ 40による回転軸 24と駆動軸 2 2との接続を解除した状態で無段変速機 50による変速をもってモータ 30からのトルク を駆動軸 22に出力することができる。したがって、駆動軸 22に高トルクが要求された ときにはトルク指令を伝達切替トルク以上のトルクとしてモータ 30を駆動すると共にモ ータ 30からのトルクが要求されるトルクになるよう無段変速機 50の変速比を変更すれ ばよい。なお、モータ 30のトルク指令が伝達切替トルク未満のときには、クラッチ 40に より回転軸 24と駆動軸 22とが接続されているから、無段変速機 50の変速比を最大 増速側に変更して無段変速機 50とギヤ機構 52を介したときに回転軸 24の回転数と 駆動軸 22の回転数とがー致するようにすればよい。
[0027] 以上説明した実施例の駆動装置 20によれば、モータ 30から伝達切替トルク未満の トルクを出力するときには、クラッチ 40によりモータ 30の出力軸である回転軸 24と駆 動軸 22とを接続してモータ 30からのトルクをクラッチ 40を介して駆動軸 22に出力し、 モータ 30から伝達切替トルク以上のトルクを出力するときには、クラッチ 40による回転 軸 24と駆動軸 22との接続を解除してモータ 30からのトルクを無段変速機 50の変速 を伴って駆動軸 22に出力することができる。し力も、モータ 30からの出力トルクの大 きさを変更するだけで自動的にクラッチ 40による回転軸 24と駆動軸 22との接続と接 続の解除とを行なってクラッチ 40を介して駆動軸 22に出力するトルクの伝達経路と 無段変速機 50を介して駆動軸 22に出力するトルク伝達経路とを切り替えることがで きる。この結果、簡易な構成でモータ 30から駆動軸 22へのトルクの出力経路を切り 替えることができると共に複雑な制御を行なうことなくモータ 30から駆動軸 22へのト ルクの出力経路を切り替えることができる。
[0028] 次に、本発明の一実施例としての動力出力装置 70について説明する。図 3は、実 施例の動力出力装置 70の構成の一例を示す構成図である。実施例の動力出力装 置 70は、図示するように、上述した実施例の駆動装置 20と、駆動装置 20の回転軸 2 4に出力軸 74を介して接続された動力装置 72とを備える。動力装置 72は、ガソリン や軽油などの炭化水素系燃料を用いて動力を出力するエンジン 76と、エンジン 76 のクランクシャフト 77に複数のピ-オンギヤ 83を束ねるキャリア 84が接続されると共 に出力軸 74にリングギヤ 82が接続された遊星歯車機構 80と、この遊星歯車機構 80 のサンギヤ 81に動力を入出力すると共にバッテリ 38にインバータ 79を介して接続さ れたモータ 78とを備える。
[0029] この動力出力装置 70では、エンジン 76から出力される動力とモータ 78から入出力 される動力とを統合して回転軸 24に出力し、これをモータ 30から出力するトルクによ り駆動軸 22への伝達経路を切り替えて駆動軸 22に出力する。したがって、クラッチ 4 0により回転軸 24と駆動軸 22とが接続されているときには、モータ 30から出力された トルクと動力出力装置 70から出力軸 74に出力されたトルクとの和のトルクを直接駆動 軸 22に出力し、クラッチ 40による回転軸 24と駆動軸 22との接続が解除されていると きには、モータ 30から出力されたトルクと動力出力装置 70から出力軸 74に出力され たトルクとの和のトルクを無段変速機 50の変速比による変速をもって駆動軸 22に出 力することができる。
[0030] 以上説明した実施例の動力出力装置 70によれば、動力装置 72から出力軸 74に 出力されたトルクを、モータ 30から伝達切替トルク未満のトルクを出力するときには、 モータ 30からのトルクとの和として直接駆動軸 22に出力し、モータ 30から伝達切替ト ルク以上のトルクを出力するときには、モータ 30からのトルクとの和として無段変速機 50の変速を伴って駆動軸 22に出力することができる。し力も、モータ 30からの出力ト ルクの大きさを変更するだけで自動的にクラッチ 40による回転軸 24と駆動軸 22との 接続と接続の解除とを行なって、動力装置 72から出力軸 74に出力されたトルクをモ ータ 30からのトルクとの和として直接駆動軸 22に出力する伝達経路と無段変速機 5 0を介して駆動軸 22に出力する伝達経路とを切り替えることができる。この結果、簡 易な構成で動力装置 72やモータ 30から駆動軸 22へのトルクの出力経路を切り替え ることができると共に複雑な制御を行なうことなく動力装置 72やモータ 30から駆動軸 22へのトルクの出力経路を切り替えることができる。
[0031] 実施例の駆動装置 20や動力出力装置 70における駆動装置 20では、ステータ 32 の磁界に対して回転軸 24は図 1中左方向のスラスト力を受けて移動するものとしたが 、回転軸 24は図 1中右方向のスラスト力を受けて移動するものとしてもよい。この場合 、パネ 36は回転軸 24がスラスト力を受けて移動したときにクラッチ 40により回転軸 24 と駆動軸 22との接続が解除されるようロータ 31を付勢するよう取り付ければよい。
[0032] 実施例の駆動装置 20や動力出力装置 70における駆動装置 20では、クラッチ 40 により回転軸 24と駆動軸 22とが接続されているときには、無段変速機 50の変速比を 最大増速側として無段変速機 50とギヤ機構 52を介したときに回転軸 24の回転数と 駆動軸 22の回転数とがー致するようにした力 クラッチ 40により回転軸 24と駆動軸 2 2とが接続されているときに無段変速機 50とギヤ機構 52を介して回転軸 24の回転数 と駆動軸 22の回転数とがー致すればよいから、無段変速機 50の変速比が最大増速 側とは異なる変速比のときに無段変速機 50とギヤ機構 52を介して回転軸 24の回転 数と駆動軸 22の回転数とがー致するようにしてもょ 、。
[0033] 実施例の駆動装置 20や動力出力装置 70における駆動装置 20では、無段変速機 50と駆動軸 22との間にギヤ機構 52を介在させるものとした力 こうしたギヤ機構 52 は備えず、無段変速機 50と駆動軸 22とを直接連結するものとしてもょ 、。
[0034] 実施例の駆動装置 20や動力出力装置 70における駆動装置 20では、モータ 30の 出力軸である回転軸 24にトロイダル式の無段変速機またはベルト式無段変速機であ る無段変速機 50を接続するものとしたが、この他の形式の無段変速機を接続するも のとしてもよぐあるいは、図 4の変形例の駆動装置 20Bに例示するように、無段変速 機 50に代えて有段変速機 50Bを接続するものとしてもよい。この場合、有段変速機 5 OBに接続するギヤ機構 52Bは、クラッチ 40により回転軸 24と駆動軸 22とが接続され ているときに有段変速機の最増速側の変速段あるいは他の変速段のときに有段変速 機とギヤ機構 52Bを介して回転軸 24の回転数と駆動軸 22の回転数とがー致するよう にギヤ比を設定すればょ 、。
[0035] 実施例の駆動装置 20や動力出力装置 70における駆動装置 20では、モータ 30の 出力軸である回転軸 24に無段変速機 50を接続するものとしたが、クラッチ 40により 回転軸 24と駆動軸 22とを接続しているときに回転軸 24の回転数と駆動軸 22との回 転数が一致すればよいから、図 5の変形例の駆動装置 20Cに例示するように、無段 変速機 50に代えてトルクコンバータ 51を接続するものとしてもよい。この場合、トルク コンバータ 51が滑ることができるから、ギヤ機構 52を備えないものとすることができる 。このトルクコンバータ 51を備える場合、図 6の変形例の駆動装置 20Dに例示するよ うにトルクコンバータ 51と駆動軸 22との間に無段変速機 50Dを備えるものとしてもよ いし、図 7の変形例の駆動装置 20Eに例示するようにモータ 30とトルクコンバータ 51 との間に無段変速機 50Eを備えるものとしてもよい、
[0036] 以上、本発明を実施するための最良の形態について実施例を用いて説明したが、 本発明はこうした実施例に何等限定されるものではなぐ本発明の要旨を逸脱しない 範囲内において、種々なる形態で実施し得ることは勿論である。
産業上の利用可能性
[0037] 本発明は、駆動装置や動力出力装置の製造産業などに利用可能である。

Claims

請求の範囲
[1] 駆動軸に駆動力を出力する駆動装置であって、
コイルが卷回された固定子と、軸方向への移動が可能に軸支された回転軸に取り 付けられ前記固定子のコイルに電流を印加することにより生じる磁界の作用により該 回転軸の一方向への移動力を伴って回転すると回転子と、を有する電動機と、 前記回転軸から前記駆動軸へ動力を伝達する第 1動力伝達手段と、
前記回転軸から前記駆動軸へ動力を伝達する前記第 1動力伝達手段とは異なる 第 2動力伝達手段と、
前記回転軸の軸方向への移動を伴って前記第 1動力伝達手段による動力の伝達 と前記第 2動力伝達手段による動力の伝達とを切り替える動力伝達切替手段と、 を備える駆動装置。
[2] 前記動力伝達切替手段は、前記電動機から出力するトルクが第 1の所定トルク未満 となる低トルク領域では前記第 1動力伝達手段による動力の伝達を行な 、、前記電 動機から出力するトルクが前記第 1の所定トルク以上の第 2の所定トルク以上となる高 トルク領域では前記第 2動力伝達手段による動力の伝達を行なう手段である請求項 1 記載の駆動装置。
[3] 前記動力伝達切替手段は、前記回転軸を前記一方向とは逆の他方向に移動力を 付与する移動力付与手段と、前記回転軸を前記一方向に移動させたときに前記回 転軸と前記駆動軸と接続すると共に前記回転軸を前記他方向に移動させたときに前 記回転軸と前記駆動軸との接続を解除する接続解除手段と、を備える手段である請 求項 1記載の駆動装置。
[4] 前記移動力付与手段は、前記回転軸に前記他方向に作用する付勢力を付与する パネである請求項 3記載の駆動装置。
[5] 請求項 1記載の駆動装置であって、
前記第 1動力伝達手段は、所定の変速比をもって前記回転軸の動力を前記駆動 軸に伝達する手段であり、
前記第 2動力伝達手段は、変更可能な変速比をもって前記回転軸の動力を前記 駆動軸に伝達可能な手段である 駆動装置。
[6] 前記第 2動力伝達手段は、無段変速機を有する手段である請求項 5記載の駆動装 置。
[7] 前記第 2動力伝達手段は、有段変速機を有する手段である請求項 5記載の駆動装 置。
[8] 前記第 2動力伝達手段は、トルクコンバータを有する手段である請求項 5記載の駆 動装置。
[9] 前記第 2動力伝達手段は、前記トルクコンバータと前記駆動軸とに介在する変速機 を有する手段である請求項 8記載の駆動装置。
[10] 前記接続解除手段により前記回転軸と前記駆動軸とが接続されているときには、前 記第 2動力伝達手段における動力の伝達による前記回転軸の回転に対する前記駆 動軸の回転が前記第 1動力伝達手段における動力の伝達による前記回転数の回転 に対する前記駆動軸の回転に同期するよう前記第 2動力伝達手段を制御する制御 手段を備える請求項 5記載の駆動装置。
[11] 駆動軸に動力を出力する動力出力装置であって、
コイルが卷回された固定子と、軸方向への移動が可能に軸支された回転軸に取り 付けられ前記固定子のコイルに電流を印加することにより生じる磁界の作用により該 回転軸の一方向への移動力を伴って回転すると回転子と、を有する電動機と、 前記回転軸から前記駆動軸へ動力を伝達する第 1動力伝達手段と、
前記回転軸から前記駆動軸へ動力を伝達する前記第 1動力伝達手段とは異なる 第 2動力伝達手段と、
前記回転軸の軸方向への移動を伴って前記第 1動力伝達手段による動力の伝達 と前記第 2動力伝達手段による動力の伝達とを切り替える動力伝達切替手段と、 内燃機関と、
前記内燃機関の出力軸と前記駆動軸とに接続され、電力と動力との入出力を伴つ て前記内燃機関力 の動力の少なくとも一部を前記駆動軸に出力可能な電力動力 入出力手段と、
を備える動力出力装置。
[12] 前記動力伝達切替手段は、前記電動機から出力するトルクが第 1の所定トルク未満 となる低トルク領域では前記第 1動力伝達手段による動力の伝達を行な 、、前記電 動機から出力するトルクが前記第 1の所定トルク以上の第 2の所定トルク以上となる高 トルク領域では前記第 2動力伝達手段による動力の伝達を行なう手段である請求項 1 1記載の動力出力装置。
[13] 前記動力伝達切替手段は、前記回転軸を前記一方向とは逆の他方向に移動力を 付与する移動力付与手段と、前記回転軸を前記一方向に移動させたときに前記回 転軸と前記駆動軸と接続すると共に前記回転軸を前記他方向に移動させたときに前 記回転軸と前記駆動軸との接続を解除する接続解除手段と、を備える手段である請 求項 11記載の動力出力装置。
[14] 請求項 11記載の動力出力装置であって、
前記第 1動力伝達手段は、所定の変速比をもって前記回転軸の動力を前記駆動 軸に伝達する手段であり、
前記第 2動力伝達手段は、変更可能な変速比をもって前記回転軸の動力を前記 駆動軸に伝達可能な手段である
動力出力装置。
[15] 前記接続解除手段により前記回転軸と前記駆動軸とが接続されているときには、前 記第 2動力伝達手段における動力の伝達による前記回転軸の回転に対する前記駆 動軸の回転が前記第 1動力伝達手段における動力の伝達による前記回転数の回転 に対する前記駆動軸の回転に同期するよう前記第 2動力伝達手段を制御する制御 手段を備える請求項 14記載の動力出力装置。
PCT/JP2006/317118 2005-08-31 2006-08-30 駆動装置およびこれを備える動力出力装置 WO2007026769A1 (ja)

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US20080150382A1 (en) 2008-06-26
CN101198804B (zh) 2010-05-19
KR20080014031A (ko) 2008-02-13
EP1921338A1 (en) 2008-05-14
US7749133B2 (en) 2010-07-06
KR100914989B1 (ko) 2009-09-02
JP2007064388A (ja) 2007-03-15

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