WO2007119470A1 - 動力伝達装置およびその組立方法 - Google Patents
動力伝達装置およびその組立方法 Download PDFInfo
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- WO2007119470A1 WO2007119470A1 PCT/JP2007/055821 JP2007055821W WO2007119470A1 WO 2007119470 A1 WO2007119470 A1 WO 2007119470A1 JP 2007055821 W JP2007055821 W JP 2007055821W WO 2007119470 A1 WO2007119470 A1 WO 2007119470A1
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- WIPO (PCT)
- Prior art keywords
- shaft
- rotor
- power transmission
- transmission device
- spline
- Prior art date
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Classifications
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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
- B60K6/42—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
- B60K6/445—Differential gearing distribution type
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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
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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
- B60K6/36—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
- B60K6/365—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 with the gears having orbital motion
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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
- B60K6/40—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
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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
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/54—Transmission for changing ratio
- B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
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- 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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
- F16H37/0833—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths
- F16H37/084—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths at least one power path being a continuously variable transmission, i.e. CVT
- F16H2037/0866—Power split variators with distributing differentials, with the output of the CVT connected or connectable to the output shaft
- F16H2037/0873—Power split variators with distributing differentials, with the output of the CVT connected or connectable to the output shaft with switching, e.g. to change ranges
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
Definitions
- the present invention relates to a power transmission device having a configuration in which an input-side shaft and an output-side shaft are coupled to a rotor of an electric motor, and torque is transmitted between these three members as a whole, and the power transmission device. Relates to a method for assembling the device.
- a power device for a vehicle As a power device for a vehicle, a device combining an internal combustion engine and an electric motor, a device using an electric motor as a power source, and the like are known. Even in a vehicle using this type of power unit, a transmission is also mounted in order to control the drive torque and the rotational speed of the internal combustion engine or electric motor.
- a transmission is also mounted in order to control the drive torque and the rotational speed of the internal combustion engine or electric motor.
- Japanese Patent Application Laid-Open No. 2003-127681 The device described in Japanese Patent Application Laid-Open No. 2003-127681 is a drive device for a hybrid vehicle. An internal combustion engine is connected to a carrier of a planetary gear mechanism, and a first gear is connected to a sun gear of the planetary gear mechanism. A motor generator is connected.
- a ring gear is connected to the input side member of the stepped automatic transmission.
- the output side member of the automatic transmission is connected to the propeller shaft, and the second motor generator is connected to the propeller shaft. Therefore, in the device of Japanese Patent Laid-Open No. 2003-127681, the planetary gear mechanism constitutes a distribution mechanism that distributes the power output from the internal combustion engine to the first motor generator and the automatic transmission. In the process of transmitting power from the distribution mechanism to the automatic transmission, torque is added or absorbed by the second motor generator.
- this patent publication 2003-127681 discloses a configuration in which a second motor generator is connected to an input side of an automatic transmission, and an output member of the automatic transmission is connected to a propeller shaft via a gear train. Are listed.
- the second motor generator is connected to the propeller shaft via a gear pair, or the second motor generator is connected to the automatic transmission.
- this is a structure in which the rotor is attached to the rotation shaft of a predetermined gear in the gear pair, or the rotor is attached to the input shaft of the automatic transmission. did Therefore, in the apparatus described in Japanese Patent Laid-Open No. 2003-127681, when the second motor generator is assembled, the second motor generator is connected to the gear pair or the automatic transmission. .
- the present invention has been made paying attention to the above technical problem, and an object of the present invention is to provide a power distribution mechanism capable of rotating an electric motor independently during an assembly process and an assembly method thereof. To do.
- the rotor and the second shaft on the output side can be rotated relative to each other in a state before the first shaft on the input side is connected to the rotor.
- the first shaft, the second shaft, and the rotor are connected in a state where torque can be transmitted.
- the rotor of the first electric motor is disposed between the first shaft on the input side and the second shaft on the output side, and the first shaft, the second shaft, and the rotor are:
- the first shaft is connected to the rotor
- the second shaft is connected to the first shaft.
- the continuously variable speed ratio can be changed by an electric drive device in which the first shaft is an output shaft and the rotational speed is electrically controlled.
- a power transmission device further comprising: a transmission unit; and a mechanical transmission unit capable of changing a transmission ratio with the second shaft as an input shaft.
- the present invention is characterized in that, in the above-mentioned invention, the mechanical transmission unit includes a mechanism in which a transmission path of a dynamic force is changed by mechanical means to change a transmission gear ratio. It is a power transmission device.
- the electric continuously variable transmission unit includes an internal combustion engine, a second electric motor, and power output from the internal combustion engine to the first shaft and the second electric motor.
- the power transmission device includes a differential mechanism for distribution.
- the rotor has a cylindrical portion along a rotation center axis, and the cylindrical portion is rotatably attached to a predetermined fixed portion via a bearing. In the power transmission device, at least one of the first shaft and the second shaft is inserted into the cylindrical portion.
- the present invention further includes a case for housing the electric continuously variable transmission unit, the first motor, and the mechanical transmission unit, and the fixing unit is provided inside the case.
- the power transmission device is characterized in that it is formed by a partition wall portion provided on the inner wall.
- the first shaft is spline-fitted to the rotor
- the second shaft is spline-fitted to the first shaft. This is a power transmission device.
- the second shaft is inserted on the inner peripheral side of the cylindrical portion, and the outer periphery of the second shaft is provided on the inner peripheral portion of the cylindrical portion.
- the second shaft is a guide portion for assembling the rotor by forming a small-diameter portion whose clearance between the rotor and the rotor is smaller than the minimum clearance between the outer peripheral surface of the rotor and the inner peripheral surface of the stator. It is a power transmission device characterized by
- the small-diameter portion is formed in a portion facing a portion closer to the intermediate portion than the tip portion of the second shaft, and the outer periphery of the tip portion of the second shaft.
- the power transmission device is characterized in that a spline is formed on the surface, and a spline is formed on an inner peripheral portion of the inner peripheral portion of the cylindrical portion near an end portion of the second shaft.
- the spline formed at the tip of the second shaft and the spline formed at the cylindrical portion substantially coincide with each other in the axial direction.
- This is a power transmission device characterized by that.
- the position at which the first shaft and the rotor start to be spline-fitted, and the first shaft and the second shaft start to be spline-fitted is characterized in that the position is shifted in the axial direction.
- the second shaft passes through the partition wall and is rotatably supported by the partition wall. It is a transmission device.
- the present invention according to any one of the above-described inventions, further includes another fixing portion that divides the storage chamber of the first electric motor so as to face the partition portion, and the rotor has both ends of the cylindrical portion
- the power transmission device is characterized in that a part is rotatably supported by the partition wall and the other fixing part.
- a spline for connecting to the rotor is formed on the outer peripheral surface of the first shaft, and the first peripheral shaft is formed with the first shaft on the inner peripheral surface of the first shaft.
- the power transmission device is characterized in that a spline for connecting with two shafts is formed.
- the rotor of the electric motor is disposed between the first shaft on the input side and the second shaft on the output side, and the first shaft, the second shaft, and the rotor are integrated at least in the rotational direction.
- the second shaft and the rotor are assembled so as to be relatively rotatable, and then the first shaft is coupled to the second shaft and coupled to the rotor. It is the method characterized by this.
- a partition wall portion is assembled in the case so as to pass through the second shaft in a state where the second shaft is assembled in the case, and the partition wall portion
- the second shaft is rotatably supported by the second shaft, and then the rotor is fitted to the outer peripheral side of the second shaft and moved in the axial direction to assemble the rotor with the second shaft as a guide portion and
- the other end of the rotor is attached to the inside of the case by assembling another partition so as to face the partition with the rotor interposed therebetween.
- the first shaft and the rotor are connected by inserting the first shaft through the other partition wall and inserting the first shaft into the rotor. And assembling the power transmission device, wherein the first shaft and the second shaft are coupled.
- the first shaft, the second shaft, and the rotor of the first motor in the power transmission device are connected so as to be able to transmit torque, but in a state before the first shaft is assembled.
- the second shaft and the rotor are not connected. Therefore, in this state, since the rotor can rotate with respect to the second shaft, it is possible to rotate the electric motor alone while the power transmission device is being assembled. As a result, the electric motor is inspected independently. Or, you can adjust it.
- the second shaft that is the input shaft of the mechanical transmission unit and the rotor of the electric motor are not connected. In the middle of assembling the power transmission device, it is possible to drive the motor alone and inspect and adjust it.
- the first electric motor is rotated independently and the inspection is performed. And adjustments can be made.
- the rotor of the first electric motor is rotatable by rotatably supporting the cylindrical portion with a predetermined fixing portion, so that the second shaft is attached to the cylindrical portion. Or even when the input shaft is inserted, the rotor can rotate without interfering with the second shaft or the input shaft, and as a result, inspection and adjustment of the first motor can be performed easily and accurately. Can do.
- the rotor can be supported by the rotation by the partition part substantially integral with the case, and the first electric motor is driven independently before the first shaft or the output shaft is assembled. The inspection or adjustment can be performed.
- the rotor and the second shaft can be coupled via the first shaft.
- the connection work becomes easy.
- the mouth can be assembled using the second shaft or the input shaft of the mechanical transmission unit as a guide unit, the rotor can be easily assembled without causing the rotor to interfere with the stator. it can.
- the cylindrical portion is attached to the second axis spline. Can be assembled easily without causing interference.
- the splines are arranged side by side in the radial direction.
- the torsional stress acting on the first shaft connecting the rotor and the second shaft can be reduced.
- the first shaft when the first shaft is assembled, the first shaft is fitted to one of the rotor spline and the second shaft spline, and then fitted to the other spline. Therefore, assembly becomes easy.
- the second shaft passes through the partition wall and is rotatably supported, it can sufficiently function as a guide when the rotor is assembled.
- the first motor can be easily inspected and adjusted before the first shaft is assembled.
- the first shaft is spline-fitted to the rotor and the second shaft, and the force is also fitted to each of the splines on both the inner and outer circumferences, so that the assemblability can be improved.
- the torsional stress acting on the first axis can be reduced.
- first, the second shaft and the rotor are assembled so as to be relatively rotatable with each other. Can rotate without interfering with the second axis, and as a result, the motor can be driven independently for easy inspection and adjustment.
- the first shaft is connected to the rotor and the second shaft, and as a result, the rotor and the second shaft can transmit torque.
- the rotor since the rotor is assembled using the second shaft as a guide portion, the rotor can be easily assembled without causing interference with the stator or the like.
- the rotor can be rotatably supported in a so-called both-end supported state.
- the first electric motor can be maintained in a rotatable state, and the inspection and adjustment can be performed independently.
- the rotor functions as a connecting member that connects the second shaft.
- FIG. 1 is a cross-sectional view showing an example of the present invention.
- FIG. 2 is a skeleton diagram schematically showing a drive system of a hybrid vehicle including a power transmission device to which the present invention is applied.
- FIG. 3 is a chart showing an engagement operation table of the mechanical transmission unit.
- FIG. 4 is an explanatory view schematically showing a part of the assembly procedure of the rotor.
- FIG. 5 is a cross-sectional view showing another example of the present invention.
- FIG. 1 is a cross-sectional view showing a part of a power transmission device that is an object of the present invention.
- the power transmission device shown here includes a mechanical transmission unit 1 and an electric motor 2.
- the transmission unit 1 and the electric motor 2 are housed inside the case 3.
- This case 3 has a structure in which one end side (left side in FIG. 1) is wide open, and the other end side (right side in FIG. 1) is small enough to pass through an output shaft (not shown). It is divided into two storage chambers 5 and 6 by a partition wall 4 attached to the container.
- the transmission unit 1 is arranged in the accommodation chamber 5 on the right side of FIG. 1, and the electric motor 2 is arranged in the accommodation chamber 6 on the left side of FIG.
- the transmission unit 1 such as a stepped gear transmission mechanism or a continuously variable transmission mechanism such as a belt type or a toroidal type, is mainly configured to change the transmission ratio by changing the power transmission path. It is configured.
- An example of the stepped transmission unit 1 mainly composed of a planetary gear mechanism will be described later.
- the transmission unit 1 includes an input shaft 7 corresponding to the second shaft of the present invention, and the input shaft 7 passes through the partition wall 4 and protrudes toward the housing chamber 6 side of the electric motor 2.
- the partition wall portion 4 is a plate-like member having a boss portion 8 on the center side.
- the partition wall portion 4 is fitted and centered in a spigot portion 9 formed on the inner peripheral portion of the case 3, and is bolted. It is fixed to Case 3 by 10.
- the input shaft 7 passes through the partition wall portion 4 along the central axis of the boss portion 8 of the partition wall portion 4, and can be rotated by the partition wall portion 4 via a bearing 11 fitted to the outer peripheral side thereof. Is held in.
- the electric motor 2 includes a stator (stator) 12 and a port (rotor) 13 arranged concentrically on the inner peripheral side thereof.
- a stator (stator) 12 and a port (rotor) 13 arranged concentrically on the inner peripheral side thereof.
- an appropriate type can be used, and for example, a permanent magnet type synchronous motor can be used.
- the stator 12 A permanent magnet 15 is attached to the rotor 13.
- the rotor 13 includes a cylindrical portion 16 having a length close to the axial length of the coil 14 on the inner peripheral portion thereof.
- the input shaft 7 protrudes from the end of the rotor 13 on the side of the partition wall 4 to the vicinity of the center of the cylindrical portion 16.
- a spline 17 is formed on the outer peripheral surface of the tip of the input shaft 7.
- a spline 18 is formed on the inner peripheral surface of the end portion of the cylindrical portion 16 opposite to the partition wall portion 4. These splines 17 and 18 are offset from each other in the axial direction.
- the storage chamber 6 in which the electric motor 2 is stored is partitioned by another partition wall portion 19 attached to the inner peripheral portion of the case 3 so as to face the partition wall portion 4.
- the rotor 13 is rotatably supported by the partition walls 4 and 19 via bearings 20 and 21 fitted to both ends of the cylindrical portion 16. Therefore, these partition walls 4 and 19 correspond to the fixing parts of the present invention.
- the inner peripheral surface of the cylindrical portion 16 of the rotor 13 and the outer peripheral surface of the input shaft 7 are sufficiently separated from each other. Therefore, when the rotor 13 is assembled and supported by the bearings 20, 21, the rotor 13 Can be rotated alone.
- a rotor 23 of a resolver 22 is attached to an end of the cylindrical portion 16 on the other partition wall portion 19 side, and a stator 24 is disposed on the outer peripheral side thereof so as to face each other in the radial direction.
- the stator 24 is fixed to the inner surface of the other partition wall 19.
- the other partition wall portion 19 is formed with a boss portion 25 whose center axis coincides with the input shaft 7, and a power distribution corresponding to the first shaft of the present invention is formed on the boss portion 25.
- the output shaft 27 of the mechanism 26 is inserted.
- the output shaft 27 is a shaft for transmitting the power of the power distribution mechanism 26 to the electric motor 2 and the transmission unit 1, and its tip can be inserted into the inner peripheral side of the cylindrical part 16 and the input It is formed in a cylindrical shape so that it can be fitted to the outer peripheral side of the shaft 7.
- a spline is formed on the inner peripheral surface on the tip side of the cylindrical portion, and the spline is fitted to the spline 17 in the input shaft 7.
- the spline is formed on the outer peripheral surface of the output shaft 27 corresponding to the spline 18 formed on the inner peripheral surface of the cylindrical portion 16.
- the spline is engaged with the spline 18 of the cylindrical portion 16. That is, the output shaft 27 has a thread on its inner and outer peripheral surfaces.
- a pipeline is formed. Therefore, the rotor 13 and the input shaft 7 are connected via the output shaft 27 so that torque can be transmitted. In other words, the port 13 and the input shaft 7 are not connected until the output shaft 27 is assembled.
- the power distribution mechanism 26 will be described later.
- the oil passages 28 and 29 for supplying or discharging the lubricating oil or the hydraulic pressure to the transmission unit 1 and the power distribution mechanism 26 or the bearings 11, 20, and 21 are provided as the partition portions described above. 4 and 19 are formed through.
- a hydraulic control circuit (not shown) for supplying and discharging hydraulic pressure through these oil passages 28 and 29 is attached to the lower part of the case 3, and an oil pan (not shown) It is attached to the bottom of Case 3 with the control circuit housed.
- the power transmission device shown in FIG. 1 can be mounted on a hybrid vehicle, and an example of such a configuration is shown in a skeleton diagram in FIG.
- the example shown here is an example configured as a so-called two-motor hybrid drive device, particularly an example configured to be mounted in the front-rear direction of the vehicle.
- the configuration of the transmission unit 1 will be described.
- the transmission gear ratio between the forward fourth speed and the reverse first speed can be set by two sets of planetary gear mechanisms 30, 31.
- These planetary gear mechanisms 30, 31 may be either a single pinion type or a double pinion type, but in the example shown in FIG. 2, a single pinion type planetary gear mechanism is employed.
- each planetary gear mechanism 30, 31 includes sun gears SI and S2 which are external gears, ring gears Rl and R2 which are internal gears arranged concentrically on the outer periphery thereof, and these sun gears SI,
- the carrier CA1 and CA2 holding the pinion gears disposed between S2 and the ring gears Rl and R2 are configured to perform a differential action.
- the carrier CA1 in the first planetary gear mechanism 30 and the ring gear R2 in the second planetary gear mechanism 31 are connected, and the ring gear R1 and the second planetary gear in the first planetary gear mechanism 30 are connected. It is connected to carrier CA2 of mechanism 31. Therefore, these planetary gear mechanisms 30, 31 are configured as a so-called CR-CR combined compound planetary gear mechanism.
- Three clutch mechanisms CI, C2, and C3 are provided for selectively transmitting power to the compound planetary gear mechanism.
- These clutch mechanisms CI, C2, C3 are, for example, hydraulic
- the first clutch mechanism C1 is disposed between the input shaft 7 and the sun gear S2 of the second planetary gear mechanism 31 described above, and the carrier of the first planetary gear mechanism 30 is
- a second clutch mechanism C2 is disposed between CA1 and the input shaft 7, and
- a third clutch mechanism C3 is disposed between the sun gear S1 and the input shaft 7 in the first planetary gear mechanism 30.
- Brake mechanism B2 is provided. As these brake mechanisms Bl and B2, hydraulic multi-plate brakes and band brakes can be adopted.
- a one-way clutch F1 is provided in parallel with the second brake mechanism B2. The one-way clutch F 1 is engaged when the carrier CA1 in the first planetary gear mechanism 30 and the ring gear R2 in the second planetary gear mechanism 31 try to rotate in the opposite direction to the input shaft 7. It is configured to stop its rotation.
- the output shaft 32 is connected to the carrier CA2 in the second planetary gear mechanism 31. The output shaft 32 is disposed on the same axis as the input shaft 7 described above, and protrudes from the case 3.
- the power distribution mechanism 26 uses the power generated by the internal combustion engine (engine) 33 as a motor generator (Ml) 34 corresponding to the second electric motor of the present invention. And a mechanism for distributing to the transmission unit 1 and is constituted by a planetary gear mechanism. As long as the planetary gear mechanism has a differential action by three rotating elements, it is possible to use an appropriate configuration such as a single pinion type or a double pinion type, as shown in Fig. 2. In the example, a single repinion type planetary gear mechanism is used. The planetary gear mechanism is configured as a so-called speed increasing mechanism.
- the internal combustion engine 33 is connected to the carrier CA0, the motor / generator 34 is connected to the sun gear SO, and the output shaft 27 is connected to the ring gear R0. ing.
- the output shaft 27 of the power distribution mechanism 26 is connected to the input shaft 7 of the transmission unit 1, and the rotor 13 of the electric motor (M2) 2 is connected to the output shaft 27 and the input shaft 7.
- the motor generator 34 may be a generator, and the motor 2 may be a motor generator having a power generation function. Also these The motor / generator 34 and the electric motor 2 are connected to the battery via a controller such as an inverter (not shown), and the inverter is controlled by an electronic control unit so that driving torque, power generation torque, power generation amount, and the like are controlled. It has become.
- the transmission unit 1 mainly composed of the above two sets of planetary gear mechanisms 30, 31 includes the clutch mechanisms CI, C2, C3, the brake mechanisms Bl, B2 and the one-way clutch F1 in FIG. It is configured to set forward 4th speed and reverse 1st speed by engaging or releasing as shown.
- Fig. 3 is a chart showing the engagement operation table. The symbol ⁇ indicates the engaged state, the blank indicates the released state, and the bracket ⁇ indicates the power source brake (or engine brake). Indicates engagement for effect.
- the clutch mechanism Cl, C2, C3 and the brake mechanism Bl, B2 are controlled to be engaged and released by the hydraulic pressure output from the hydraulic control circuit described above.
- the assembly procedure (method) of the power transmission device described above will be described.
- the components of the transmission 1 are sequentially inserted from the large opening side (the internal combustion engine 33 side in the vehicle-mounted state) into the case 3 before mounting the partition walls 4 and 19 described above.
- the input shaft 7 in the transmission unit 1 is inserted into the boss portion 8 of the partition wall portion 4 and the partition wall portion 4 is fitted to the spigot portion 9 formed on the inner peripheral portion of the case 3 and fixed by the bolt 10. To do.
- the accommodation chamber 5 that accommodates the transmission 1 is closed, and the input shaft 7 is rotatably supported by the boss 8 via the bearing 11.
- the stator 12 in the electric motor 2 is attached to the inner periphery of the case 3.
- the input shaft 7 protrudes on the same axis as the stator 12.
- the tip end of the guide shaft 38 is fitted to the protruding end side of the input shaft 7.
- the guide shaft 38 has an outer diameter substantially equal to that of the output shaft 27, and is connected so as to extend on the same axis as the input shaft 7 that has already been assembled.
- the rotor 13 is slidably fitted to the outer peripheral side of the guide shaft 38, and the rotor 13 is inserted along the guide shaft 38 into the inner peripheral side of the stator 12 using an appropriate jig 39.
- the bearing 20 is fitted in advance to the inner peripheral side of the boss portion 8 of the partition wall portion 4.
- the output shaft 27 of the power distribution mechanism 26 assembled in advance is inserted into the inner peripheral side of the cylindrical portion 16 through the other partition wall portion 19.
- the tip end of the output shaft 27 is formed in the shape of a cylindrical shaft as described above, and a spline is formed on the inner peripheral side thereof, so that the spline is fitted to the spline 17 of the input shaft 7, and the output shaft 27 and the input shaft 7 are connected so that torque can be transmitted.
- the spline formed on the outer peripheral surface of the base end side (left side in FIG. 1) of the output shaft 27 is fitted into the spline 18 formed on the inner peripheral surface of the cylindrical portion 16, and the output shaft 27 is The rotor 13 is connected to be able to transmit torque.
- the output shaft 27, the input shaft 7, and the rotor 13 are connected so as to be able to transmit torque.
- FIG. 5 shows that the protruding length of the input shaft 7 is increased and the output is increased.
- the spline fitting position between the shaft 27 and the input shaft 7 and the spline fitting position between the output shaft 27 and the rotor 13 are substantially aligned in the axial direction.
- the input shaft 7 extends to near the end of the cylindrical portion 16 on the other partition wall 19 side, and is substantially opposed to the spline 18 on the inner surface of the cylindrical portion 16 (that is, in the axial direction).
- the spline 17 is formed on the outer peripheral surface. Note that the left end of the spline 17 of the input shaft 7 in FIG.
- the output shaft 27 is shorter than the above-described example, and its tip is positioned between the spline 18 of the cylindrical portion 16 and the spline 17 of the input shaft 7. is doing.
- Splines are formed on both the inner and outer peripheral sides of the cylindrical tip portion of the output shaft 27, and are splined to the cylindrical portion 16 and the input shaft 7.
- small-diameter portions 16A are formed at predetermined intervals in two locations on the inner peripheral portion of the cylindrical portion 16 and closer to the other end than the spline 18. This is for assembling the rotor 13 using the input shaft 7 as a guide member, and the clearance (clearance) C1 between the inner peripheral surface of the small diameter portion 16A and the outer peripheral surface of the input shaft 7 is The gap between the outer peripheral surface and the inner peripheral surface of the stator 12 is configured to be smaller than the minimum clearance (clearance) C2.
- the rotor 13 and the input shaft 7 are not connected.
- the resolver 22 can be adjusted.
- the input shaft 7 extends to almost the entire length of the stator 12, so that when the rotor 13 is assembled, The cylindrical portion 16 can be fitted to the input shaft 7 and can be assembled using the input shaft 7 as a guide portion, and the assembly workability of the rotor 13 can be improved.
- the splines formed on the inner and outer peripheral surfaces of the output shaft 27 are at substantially the same position in the axial direction, the torsional stress acting on the output shaft 27 can be reduced.
- the force shown in the example in which the present invention is applied to the power transmission device in the hybrid drive device is not limited to the above-described specific example, Applicable to other power transmission devices.
- the transmission unit in the present invention is not limited to the planetary gear type stepped transmission mechanism described above, and may be replaced with a transmission mechanism having no transmission function.
- the electric motor of the present invention is not limited to a permanent magnet type electric motor, but may be another appropriate type of electric motor.
- the mechanism for torque transmission in the present invention is not limited to a spline, and may be a means for engaging so as to be integrated with each other in the rotational direction, such as a selection or a slide key.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Hybrid Electric Vehicles (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Arrangement Of Transmissions (AREA)
- Retarders (AREA)
- General Details Of Gearings (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112007000604.8T DE112007000604B4 (de) | 2006-03-23 | 2007-03-22 | Leistungsübertragungseinheit und Montageverfahren für diese |
CN2007800103082A CN101405161B (zh) | 2006-03-23 | 2007-03-22 | 动力传递装置及其装配方法 |
US12/293,917 US8337350B2 (en) | 2006-03-23 | 2007-03-22 | Power transmission device and method of assembling the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006081553A JP4297918B2 (ja) | 2006-03-23 | 2006-03-23 | 動力伝達装置およびその組立方法 |
JP2006-081553 | 2006-03-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007119470A1 true WO2007119470A1 (ja) | 2007-10-25 |
Family
ID=38609254
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/055821 WO2007119470A1 (ja) | 2006-03-23 | 2007-03-22 | 動力伝達装置およびその組立方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8337350B2 (ja) |
JP (1) | JP4297918B2 (ja) |
CN (1) | CN101405161B (ja) |
DE (1) | DE112007000604B4 (ja) |
WO (1) | WO2007119470A1 (ja) |
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JP4584171B2 (ja) * | 2006-03-23 | 2010-11-17 | トヨタ自動車株式会社 | 動力伝達装置およびその組立方法 |
US8030821B2 (en) * | 2009-05-06 | 2011-10-04 | Hamilton Sundstrand Corporation | Generator rotor with improved hollow shaft |
US8758182B2 (en) | 2009-10-15 | 2014-06-24 | Eaton Corporation | Free floating hydraulic bulkhead with improved sealing and anti-rotation |
DE102011012787B4 (de) | 2011-03-02 | 2023-05-04 | Audi Ag | Stromerzeugungs - und/oder Antriebsaggregat zur Reichweitenvergrößerung eines Elektrofahrzeugs |
US9205735B2 (en) | 2011-11-29 | 2015-12-08 | Toyota Jidosha Kabushiki Kaisha | Hybrid vehicle power transmission device |
JP5867103B2 (ja) | 2012-01-16 | 2016-02-24 | コベルコ建機株式会社 | ハイブリッド建設機械の駆動装置 |
JP5904214B2 (ja) * | 2012-02-14 | 2016-04-13 | トヨタ自動車株式会社 | ハイブリッド車両用駆動装置 |
CN102582415B (zh) * | 2012-03-21 | 2015-03-11 | 湖南南车时代电动汽车股份有限公司 | 一种混合动力车传动系统集成方法及装置 |
JP5862548B2 (ja) * | 2012-11-22 | 2016-02-16 | マツダ株式会社 | 手動変速機の組立方法 |
JP6020401B2 (ja) * | 2013-09-26 | 2016-11-02 | アイシン・エィ・ダブリュ株式会社 | ハイブリッド駆動装置 |
DE102014206844A1 (de) * | 2014-04-09 | 2015-10-15 | Zf Friedrichshafen Ag | Drehmomentübertragungsanordnung |
CN104343903B (zh) * | 2014-10-09 | 2017-02-01 | 重庆青山工业有限责任公司 | 一种纯电动车用两挡行星齿轮变速器 |
JP6380361B2 (ja) * | 2015-12-10 | 2018-08-29 | トヨタ自動車株式会社 | 車両の動力伝達装置 |
JP6428696B2 (ja) * | 2016-03-31 | 2018-11-28 | 株式会社豊田自動織機 | ハイブリッドパワーユニット用モータの回転センサ取付構造 |
CN106130221A (zh) * | 2016-08-04 | 2016-11-16 | 珠海格力节能环保制冷技术研究中心有限公司 | 转轴、转轴的装配方法、电机 |
WO2019033421A1 (zh) * | 2017-08-18 | 2019-02-21 | 深圳市万维博新能源技术有限公司 | 一种多档多动力行星齿轮变速装置 |
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- 2007-03-22 CN CN2007800103082A patent/CN101405161B/zh not_active Expired - Fee Related
- 2007-03-22 US US12/293,917 patent/US8337350B2/en active Active
- 2007-03-22 DE DE112007000604.8T patent/DE112007000604B4/de not_active Expired - Fee Related
- 2007-03-22 WO PCT/JP2007/055821 patent/WO2007119470A1/ja active Application Filing
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Also Published As
Publication number | Publication date |
---|---|
DE112007000604B4 (de) | 2017-10-19 |
JP2007253823A (ja) | 2007-10-04 |
CN101405161B (zh) | 2012-07-11 |
CN101405161A (zh) | 2009-04-08 |
DE112007000604T5 (de) | 2009-02-19 |
US20090227416A1 (en) | 2009-09-10 |
JP4297918B2 (ja) | 2009-07-15 |
US8337350B2 (en) | 2012-12-25 |
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