WO2019202946A1 - Bloc moteur - Google Patents

Bloc moteur Download PDF

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Publication number
WO2019202946A1
WO2019202946A1 PCT/JP2019/013730 JP2019013730W WO2019202946A1 WO 2019202946 A1 WO2019202946 A1 WO 2019202946A1 JP 2019013730 W JP2019013730 W JP 2019013730W WO 2019202946 A1 WO2019202946 A1 WO 2019202946A1
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WO
WIPO (PCT)
Prior art keywords
engine
shaft
motor
gear
drive gear
Prior art date
Application number
PCT/JP2019/013730
Other languages
English (en)
Japanese (ja)
Inventor
拓也 北見
山口　康夫
久嗣 藤原
中村　圭吾
隆宏 檜皮
Original Assignee
日本電産株式会社
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 日本電産株式会社 filed Critical 日本電産株式会社
Priority to CN201980025750.5A priority Critical patent/CN112004702B/zh
Publication of WO2019202946A1 publication Critical patent/WO2019202946A1/fr

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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
    • 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
    • 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
    • B60K6/36—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 transmission gearings
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/44—Series-parallel type
    • B60K6/442—Series-parallel switching type
    • 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
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric 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
    • Y02T10/62—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
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • a motor unit capable of reducing the vertical dimension.
  • the direction of gravity is defined and described based on the positional relationship when the motor unit 10 is mounted on a vehicle located on a horizontal road surface.
  • “extending along the axial direction” means not only extending in the axial direction (that is, the direction parallel to the X axis) but also tilting in a range of less than 45 ° with respect to the axial direction. This includes cases extending in the other direction.
  • “extending along the axis” means extending in the axial direction around a predetermined axis.
  • the power train 9 has a motor unit 10 and an engine 2.
  • the motor unit 10 is connected to the engine 2.
  • the motor unit 10 includes a generator 4, a motor 1, and a transmission mechanism (transaxle) 5.
  • a driving battery 3 is connected to the motor unit 10.
  • the motor unit 10 is mounted on a vehicle using the motor 1 and the engine 2 as power sources, such as a hybrid vehicle (HEV) and a plug-in hybrid vehicle (PHV).
  • a vehicle using the motor 1 and the engine 2 as power sources, such as a hybrid vehicle (HEV) and a plug-in hybrid vehicle (PHV).
  • HEV hybrid vehicle
  • PHY plug-in hybrid vehicle
  • the engine 2 and the motor unit 10 are connected via a damper 2c.
  • the damper 2c functions as a torque limiter.
  • the damper 2c reduces vibrations caused by sudden torque fluctuations such as when the vehicle is suddenly accelerated by the engine.
  • the engine 2 is connected to the engine drive shaft 12 of the motor unit 10 via the damper 2c. That is, the engine 2 drives the engine drive shaft 12.
  • the motor 1 has a motor rotor 31 and a motor stator 32 surrounding the motor rotor 31.
  • the motor rotor 31 can rotate around the motor shaft J1.
  • the motor stator 32 is annular.
  • the motor stator 32 surrounds the motor rotor 31 from the outside in the radial direction of the motor shaft J1.
  • the motor rotor 31 is fixed to a motor drive shaft 11 described later.
  • the motor rotor 31 rotates around the motor shaft J1.
  • the motor rotor 31 includes a rotor magnet 31a and a rotor core 31b.
  • the rotor magnet 31a is fixed in a holding hole provided in the rotor core 31b.
  • the generator 4 is a motor generator that has both a function as a motor and a function as a generator.
  • the generator 4 functions as an electric motor (starter) when starting the engine 2, and generates electric power with engine power when the engine 2 is operating.
  • the generator rotor 41 is fixed to an engine drive shaft 12 described later.
  • the generator rotor 41 rotates around the engine axis J2.
  • the generator rotor 41 includes a rotor magnet 41a and a rotor core 41b.
  • the rotor magnet 41a is fixed in a holding hole provided in the rotor core 41b.
  • the transmission mechanism 5 transmits force between the engine 2, the generator 4 and the motor 1.
  • the transmission mechanism 5 incorporates a plurality of mechanisms responsible for power transmission between the drive source and the driven device.
  • the transmission mechanism 5 outputs the power of the engine 2 and the motor 1 from the output shaft 55.
  • the transmission mechanism 5 includes a motor drive shaft 11, a motor drive gear 21, an engine drive shaft 12, an engine drive gear 22, a counter shaft 13, a counter gear (large gear portion) 23, and a drive gear (small gear portion). ) 24, ring gear 51, output shaft (axle) 55, differential gear (differential gear) 50, and release mechanism (clutch mechanism) 60.
  • the motor drive shaft 11 extends along the motor axis J1.
  • the motor drive shaft 11 is fixed to the motor rotor 31.
  • the motor drive shaft 11 is rotated by the motor 1.
  • the engine drive shaft 12 extends along the engine axis J2.
  • the engine drive shaft 12 is connected to the crankshaft 2a of the engine 2 via the damper 2c.
  • the engine drive shaft 12 is rotated by the engine 2.
  • the engine drive shaft 12 rotates in synchronization with the crankshaft 2a.
  • a generator rotor 41 is fixed to the engine drive shaft 12.
  • the engine drive gear 22 is fixed to the engine drive shaft 12.
  • the engine drive gear 22 rotates around the engine axis J2 together with the engine drive shaft 12.
  • the engine drive gear 22 meshes with the motor drive gear 21. Therefore, the engine drive gear 22 rotates with the power of the motor 1 and the engine 2.
  • the engine drive gear 22 also meshes with the counter gear 23. That is, the engine drive gear 22 meshes with two gears (the motor drive gear 21 and the counter gear 23).
  • the engine drive gear 22 transmits the power of the motor 1 and the power of the engine 2 to the counter gear 23.
  • the drive gear 24 is fixed to the counter shaft 13.
  • the drive gear 24 rotates around the counter axis J3 together with the counter shaft 13 and the counter gear 23.
  • the ring gear 51 is fixed to the differential device 50.
  • the ring gear 51 rotates around the output shaft J4.
  • Ring gear 51 meshes with drive gear 24.
  • Ring gear 51 transmits the power of motor 1 and engine 2 transmitted via drive gear 24 to differential device 50.
  • the differential device 50 is a device for transmitting torque output from the motor 1 and the engine 2 to the wheels H of the vehicle.
  • the differential device 50 has a function of transmitting the same torque to the output shafts 55 of the left and right wheels while absorbing the speed difference between the left and right wheels H when the vehicle turns.
  • the output shaft 55 rotates around the output axis J4.
  • the power of the motor 1 is transmitted to the output shaft 55 via each gear.
  • the power of the engine 2 is transmitted to the output shaft 55 via each gear.
  • the motor unit 10 of this embodiment has a pair of output shafts 55.
  • the pair of output shafts 55 are each connected to the ring gear 51 via the differential device 50.
  • the wheels H are fixed to the tips of the pair of output shafts 55, respectively.
  • the output shaft 55 outputs power to the outside (the road surface via the wheels H).
  • the transmission mechanism 5 may have a park lock mechanism (not shown).
  • the park lock mechanism is driven based on a driver's shift operation.
  • the park lock mechanism is alternatively switched between a locked state that restricts transmission of power in the transmission mechanism 5 and an unlocked state that releases the restriction.
  • the park lock mechanism includes, for example, a parking gear fixed to the counter shaft 13, a parking lock arm that engages in a groove of the parking gear to prevent the parking gear from rotating, and a parking lock actuator that drives the parking lock arm. .
  • the first shaft portion 12A is connected to the engine 2 and the generator 4.
  • the second shaft portion 12B is located on the output side (that is, on the output shaft 55 side) with respect to the first shaft portion 12A in the path of the transmission mechanism 5. In the connected state, the power of the engine 2 is transmitted from the first shaft portion 12A to the second shaft portion 12B.
  • FIG. 4 is a cross-sectional view showing the separation mechanism 60.
  • the first shaft portion 12A has a first facing end portion 12Aa that faces the second shaft portion 12B in the axial direction.
  • the first facing end 12Aa is provided with a recess 12Ac that opens in the axial direction.
  • the first shaft portion 12A has a connection flange portion 12Ab located at the first opposing end portion 12Aa.
  • An external spline 12Ad is provided on the outer peripheral surface of the connection flange portion 12Ab.
  • the second shaft portion 12B has a second facing end portion 12Ba facing the first shaft portion 12A in the axial direction.
  • the second shaft portion 12B is accommodated in the recess 12Ac of the first shaft portion 12A at the second facing end portion 12Ba.
  • a needle bearing 12n is accommodated between the inner peripheral surface of the recess 12Ac and the second shaft portion 12B.
  • the separating mechanism 60 includes a sleeve 61, a clutch hub 62, a synchronizer ring 63, a key 64, and a drive unit (not shown).
  • the separation mechanism 60 of this embodiment is called a rotation synchronization device or a synchromesh mechanism.
  • the clutch hub 62 is fixed to the outer peripheral surface of the second shaft portion 12B. That is, the separation mechanism 60 of the present embodiment is fixed to the second shaft portion 12B.
  • the clutch hub 62 rotates about the engine shaft J2 together with the second shaft portion 12B.
  • An external spline 62 a is provided on the outer peripheral surface of the clutch hub 62.
  • the sleeve 61 is supported by the second shaft portion 12B via the clutch hub 62. Therefore, the sleeve 61 can rotate around the engine axis J2 together with the second shaft portion 12B. The sleeve 61 is moved in the axial direction of the engine shaft J2 with respect to the clutch hub 62 by a drive unit (not shown).
  • An inner tooth spline 61 a is provided on the inner peripheral surface of the sleeve 61.
  • the sleeve 61 meshes with the external spline 62 a of the clutch hub 62.
  • the internal spline 61a of the sleeve 61 is fitted into the external spline 12Ad provided on the outer peripheral surface of the connection flange portion 12Ab after the clutch hub 62 and the connection flange portion 12Ab rotate synchronously. Thereby, the first shaft portion 12A and the second shaft portion 12B are connected.
  • the key 64 is held by the sleeve 61.
  • the key 64 moves in the axial direction together with the sleeve 61.
  • the key 64 matches the phases of the internal spline 61a and the external spline 12Ad provided on the sleeve 61 and the connecting flange portion 12Ab, respectively.
  • the synchronizer ring 63 moves in the axial direction together with the sleeve 61.
  • the synchronizer ring 63 has a tapered surface that increases its inner diameter as it approaches the connection flange portion 12Ab side.
  • the connecting flange portion 12Ab is provided with a boss portion that protrudes toward the synchronizer ring 63 along the axial direction.
  • the boss portion is provided with a tapered surface facing the synchronizer ring 63.
  • the synchronizer ring 63 and the connection flange portion 12Ab rotate synchronously by bringing the tapered surfaces into contact with each other.
  • the separation mechanism 60 includes a sleeve 61 provided with an internal spline 61a and moving along the engine shaft J2. Further, the separation mechanism 60 includes a synchronizer ring 63 that is pressed against the connection flange portion 12Ab by the sleeve 61 and synchronizes the rotation of the first shaft portion 12A and the second shaft portion 12B.
  • the external spline 12Ad of the connection flange portion 12Ab and the internal spline 61a of the sleeve 61 mesh with each other after the first shaft portion 12A and the second shaft portion 12B rotate in synchronization.
  • the separation mechanism 60 separates the first shaft portion 12A and the second shaft portion 12B arranged on the same axis. For this reason, the separation mechanism 60 can be reduced in size. Moreover, the motor unit 10 can be reduced in size.
  • the separation mechanism 60 of this modification is an example. Other mechanisms may be employed as the separation mechanism. However, it is preferable that the first shaft portion 12A and the second shaft portion 12B that are separated from each other by the separation mechanism 60 are arranged coaxially.
  • the separation mechanism 60 may have a configuration in which an inner peripheral spline is provided with an internal spline that meshes with the external spline 12Ad of the connection flange portion 12Ab.
  • the disconnection mechanism of the modification is configured so that the sleeve is attached to the engine shaft at a timing when the rotation speed of the second shaft portion 12B by the power of the motor 1 and the rotation speed of the first shaft portion 12A by the power of the engine 2 are synchronized.
  • the vehicle on which the motor unit 10 is mounted has three types of travel modes, EV mode, series mode, and parallel mode. These travel modes are alternatively selected by an electronic control device (not shown) according to the vehicle state, the travel state, the driver's requested output, and the like.
  • FIG. 1 shows the power train 9 in the EV mode.
  • FIG. 2 shows the power train 9 in the series mode.
  • FIG. 3 shows the power train 9 in the parallel mode.
  • the EV mode is a traveling mode in which the vehicle is driven only by the motor 1 using the charging power of the driving battery 3 while the engine 2 and the generator 4 are stopped.
  • the EV mode is selected when the traveling load is low or when the charge level of the drive battery 3 is high.
  • the disconnecting mechanism 60 is in a disconnected state in which the power transmission path from the engine 2 to the output shaft 55 is disconnected.
  • the motor rotor 31 is rotated by supplying electric power from the drive battery 3
  • the motor drive shaft 11 is rotated by the motor drive gear 21, the engine drive gear 22, the counter gear 23, the counter shaft 13, the drive gear 24, Transmission is performed in the order of the ring gear 51 and the output shaft 55.
  • the wheel H can be rotated by the motor 1, and a vehicle can be drive
  • the series mode is a driving mode in which the generator 2 is driven by the engine 2 to generate electric power, and the vehicle is driven by the motor 1 using the electric power and the driving battery 3 is charged at the same time. It is.
  • the electric power generated by the generator 4 in the series mode is supplied to both the driving battery 3 and the motor 1, for example.
  • the series mode is selected when the traveling load is medium or when the charge level of the driving battery 3 is low.
  • the separation mechanism 60 In the series mode, the separation mechanism 60 is in a cut state in which the power transmission path from the engine 2 to the output shaft 55 is cut. In the series mode, rotation transmission from the motor 1 to the output shaft 55 is the same as in the EV mode.
  • the parallel mode is a traveling mode in which the vehicle is driven mainly by the engine 2 and the driving of the vehicle is assisted by the motor 1 as necessary, and is selected when the traveling load is high.
  • the separation mechanism 60 In the parallel mode, the separation mechanism 60 is in a connected state in which a power transmission path from the engine 2 to the output shaft 55 is connected.
  • the power of the engine 2 is transmitted to the engine drive shaft 12 via the damper 2c and rotates the engine drive shaft 12.
  • the engine drive shaft 12 rotates the generator rotor 41.
  • the rotation of the engine drive shaft 12 is transmitted to the engine drive gear 22. That is, the power of the engine 2 is transmitted to the engine drive gear 22.
  • FIG. 5 is a side view of the motor unit 10 viewed from the axial direction.
  • FIG. 5 shows an XYZ coordinate system.
  • the X-axis direction is the front-rear direction of the vehicle, and the + X direction is the front of the vehicle.
  • the Y-axis direction is the vehicle width direction.
  • the Z-axis direction is the vertical direction, and the + Z direction is the upward direction.
  • the transmission mechanism 5 has three power transmission paths.
  • the first power transmission path is a motor drive path from the motor 1 to the output shaft 55.
  • the second power transmission path is an engine drive path from the engine 2 to the output shaft 55.
  • the third power drive path is a power generation path from the engine 2 to the generator 4.
  • the power of the motor 1 is transmitted from the motor drive gear 21 to the engine drive gear 22 and further to the counter gear 23.
  • the counter gear 23 is arranged coaxially with the drive gear 24 and rotates together with the drive gear 24.
  • the power of the motor 1 is transmitted from the drive gear 24 to the ring gear 51 and is transmitted to the output shaft 55 via the differential device 50.
  • the power of the engine 2 is first transmitted from the engine drive gear 22 to the counter gear 23.
  • the power of the engine 2 transmitted to the counter gear 23 is transmitted to the output shaft 55 through the drive gear 24, the ring gear 51, and the differential device 50 similarly to the power of the motor 1.
  • the power of the engine 2 is transmitted to the engine drive shaft 12.
  • the generator rotor 41 (see FIG. 1) is fixed to the engine drive shaft 12. Therefore, the power of the engine 2 is transmitted to the generator 4 without passing through the gear. For this reason, compared with the case where a gear is interposed in the power generation path, loss related to power transmission can be suppressed, and power generation efficiency can be increased.
  • the motor unit 10 can be reduced in size and weight compared to the case where a gear is interposed in the power generation path.
  • the motor shaft J1 and the engine shaft J2 can be disposed close to each other by meshing the motor drive gear 21 and the engine drive gear 22, and the motor 1 and the engine are viewed from the axial direction. It is easy to place 2 on top of each other. Thereby, according to this embodiment, the dimension of the power train 9 can be reduced in size easily.
  • the generator rotor 41 is fixed to the engine drive shaft 12.
  • the generator 4 and the motor 1 are disposed on opposite sides of the transmission mechanism 5 in the axial direction.
  • the generator 4 can be disposed so as to overlap the motor 1 when viewed from the axial direction.
  • the generator 4 and the motor 1 have a relatively large projected area in the axial direction among the constituent elements of the motor unit 10.
  • the size of the motor unit 10 viewed from the axial direction can be reduced.
  • the motor drive gear 21 of this embodiment is disposed between the upper end of the counter gear 23 and the lower end of the ring gear 51 in the vertical direction. Thereby, the vertical dimension of the motor unit 10 can be further reduced. Further, the motor drive gear 21 of the present embodiment is disposed between the upper end and the lower end of the engine drive gear 22 in the vertical direction. Therefore, in the vertical direction, the motor 1 does not protrude from the generator 4 and the engine 2 in the vertical direction, and the vertical dimension of the motor unit 10 can be reduced more effectively.
  • the diameter of the counter gear 23 and the diameter of the engine drive gear 22 are substantially equal. More specifically, the diameter of the counter gear 23 is preferably 90% or more and 110% or less with respect to the diameter of the engine drive gear 22. More preferably, the diameter (and the number of teeth) of the counter gear 23 and the diameter (and the number of teeth) of the engine drive gear 22 are completely equal.
  • the reduction ratio in the engine drive path is determined only by the relationship between the diameters of the drive gear 24 and the ring gear 51. That is, the reduction ratio in the engine drive path does not depend on the diameters of the counter gear 23 and the engine drive gear 22.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

La présente invention, selon un mode de réalisation, concerne un bloc moteur pourvu d'un moteur et d'un mécanisme de transmission. Le mécanisme de transmission comporte un arbre d'entraînement de moteur qui s'étend le long d'un axe de moteur et qui est entraîné en rotation par le moteur, un engrenage d'entraînement de moteur qui est apposé à l'arbre d'entraînement de moteur et qui tourne autour de l'axe de moteur, un arbre d'entraînement de moteur à combustion qui s'étend le long d'un axe de moteur à combustion et qui est entraîné en rotation par un moteur à combustion, un engrenage d'entraînement de moteur à combustion qui est apposé à l'arbre d'entraînement de moteur à combustion et qui tourne autour de l'axe de moteur à combustion, un contre-arbre qui s'étend le long d'un contre-axe, un contre-engrenage qui est apposé au contre-arbre, qui engrène avec l'engrenage d'entraînement de moteur à combustion et qui tourne autour du contre-axe, un engrenage d'entraînement qui est apposé au contre-arbre et qui tourne autour du contre-axe, une couronne dentée qui engrène avec l'engrenage d'entraînement et qui tourne autour d'un axe de sortie, et un arbre de sortie qui est en prise avec la couronne dentée et qui tourne autour de l'axe de sortie. L'engrenage d'entraînement de moteur engrène avec l'engrenage d'entraînement de moteur à combustion.
PCT/JP2019/013730 2018-04-20 2019-03-28 Bloc moteur WO2019202946A1 (fr)

Priority Applications (1)

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US201862660297P 2018-04-20 2018-04-20
US62/660,297 2018-04-20
JP2018-125243 2018-06-29
JP2018125243 2018-06-29

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008286247A (ja) * 2007-05-15 2008-11-27 Toyota Motor Corp オイルレベル調整装置
JP2013147048A (ja) * 2012-01-17 2013-08-01 Gkn Driveline Japan Ltd 駆動装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5042973B2 (ja) * 2008-12-01 2012-10-03 本田技研工業株式会社 ハイブリッド車両用動力伝達装置
JP5375378B2 (ja) * 2009-07-06 2013-12-25 マツダ株式会社 ハイブリッド車両用駆動装置
JP2011183946A (ja) * 2010-03-09 2011-09-22 Aisin Aw Co Ltd ハイブリッド駆動装置
JP6394622B2 (ja) * 2016-02-19 2018-09-26 トヨタ自動車株式会社 ハイブリッド車両の駆動装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008286247A (ja) * 2007-05-15 2008-11-27 Toyota Motor Corp オイルレベル調整装置
JP2013147048A (ja) * 2012-01-17 2013-08-01 Gkn Driveline Japan Ltd 駆動装置

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CN112004702A (zh) 2020-11-27

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