WO2022209625A1 - 車両用駆動装置 - Google Patents
車両用駆動装置 Download PDFInfo
- Publication number
- WO2022209625A1 WO2022209625A1 PCT/JP2022/009975 JP2022009975W WO2022209625A1 WO 2022209625 A1 WO2022209625 A1 WO 2022209625A1 JP 2022009975 W JP2022009975 W JP 2022009975W WO 2022209625 A1 WO2022209625 A1 WO 2022209625A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gear
- bearing
- rotor
- diameter
- shaft
- Prior art date
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 47
- 230000002093 peripheral effect Effects 0.000 claims description 21
- 238000003860 storage Methods 0.000 description 30
- 230000005540 biological transmission Effects 0.000 description 16
- 238000005192 partition Methods 0.000 description 12
- 230000004308 accommodation Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
-
- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
-
- 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
- F16H57/00—General details of gearing
- F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/006—Structural association of a motor or generator with the drive train of a motor vehicle
-
- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/001—Arrangement or mounting of electrical propulsion units one motor mounted on a propulsion axle for rotating right and left wheels of this axle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2410/00—Constructional features of vehicle sub-units
- B60Y2410/102—Shaft arrangements; Shaft supports, e.g. bearings
-
- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02034—Gearboxes combined or connected with electric machines
-
- 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
- F16H37/0806—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 a plurality of driving or driven shafts
- F16H37/0813—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 a plurality of driving or driven shafts with only one input shaft
-
- 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
- F16H48/00—Differential gearings
- F16H48/06—Differential gearings with gears having orbital motion
- F16H48/08—Differential gearings with gears having orbital motion comprising bevel gears
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Definitions
- the present invention comprises a rotating electrical machine, an input shaft that rotates integrally with a rotor shaft of the rotating electrical machine and has a first gear, an output member that is drivingly connected to a wheel, and a gear that drivingly connects the first gear and the output member. mechanism.
- Japanese Patent Laying-Open No. 2019-129608 discloses a vehicle driving device including a rotating electrical machine (12) serving as a driving force source for wheels, a power transmission mechanism (16), and a case (18) housing them.
- the power transmission mechanism (16) includes an input shaft (first rotating shaft (22a)) connected to the rotor shaft (26) of the rotary electric machine (12), and an input gear (pinion (22b)) formed on the input shaft. ) and a counter gear mechanism.
- the counter gear mechanism includes a first counter gear (large-diameter gear (22d)) that meshes with the input gear, and a counter shaft (second rotating shaft (22e)) that rotates integrally with the first counter gear.
- the rotor shaft (26) is rotatably supported by a pair of first bearings (28a, 28b), the counter shaft is rotatably supported by a pair of second bearings (30a, 30b), and the input shaft is supported by a pair of is rotatably supported by the third bearings (32a, 32b) of the.
- One (28b) of the pair of first bearings (28a, 28b) and one (32a) of the pair of third bearings (32a, 32b) are arranged adjacent to each other in the axial direction.
- the input shaft Torsional vibration occurs.
- the rigidity so-called mesh point motion
- the frequency of torsional vibration generated in the input shaft changes depending on the rigidity), and depending on the frequency of the torsional vibration, the sound pressure and vibration generated increase, which may be transmitted to the case and increase the noise in the audible range.
- the frequency of such torsional vibrations can be varied, for example, by changing the transmission distance of the torque (eg, by changing the distance between the rotor shaft (26) and the input gear), but the torque transmission Changing the distance can involve significant changes in the vehicle drive layout and can increase costs.
- a vehicular drive device in view of the above is a rotating electric machine having a rotor and a rotor shaft that rotates integrally with the rotor; an input shaft that includes a first gear and is coupled to the rotor shaft so as to rotate integrally; A pair of output members drivingly connected to wheels, a second gear meshing with the first gear, a third gear rotating integrally with the second gear, and the second gear and the third gear are connected.
- a counter gear mechanism including a connecting shaft; a differential gear mechanism including a fourth gear meshing with the third gear and distributing rotation of the fourth gear to a pair of the output members; the rotating electric machine; , a case that houses the counter gear mechanism, and the differential gear mechanism, wherein the direction along the rotation axis of the rotor is defined as an axial direction, and the rotor is arranged with respect to the first gear in the axial direction.
- the input shaft is arranged on the first side in the axial direction relative to the first gear.
- connection portion provided on the axial direction first side of the first supporting portion and connected to the rotor shaft; and the first supporting portion and the connecting portion in the axial direction and a small-diameter portion provided between the first support portion and the outer diameter of the connection portion.
- Axial cross-sectional view of the vehicle drive device Skeleton diagram of vehicle drive system (first vehicle drive system)
- Axial partial enlarged cross-sectional view of the vehicle drive device (first vehicle drive device)
- Axial sectional view of the vehicle drive device (second vehicle drive device) Skeleton diagram of vehicle drive system (second vehicle drive system)
- Axial partial enlarged cross-sectional view of the vehicle drive device (second vehicle drive device)
- the rotary electric machine MG includes a rotor 82 and a rotor shaft 84 that rotates integrally with the rotor 82 .
- the input shaft IN has an input gear G ⁇ b>1 (first gear) and is connected to the rotor shaft 84 so as to rotate integrally with the rotor shaft 84 .
- a pair of output members OUT are drivingly connected to wheels W, respectively.
- the counter gear mechanism CG includes a first counter gear G2 (second gear) that meshes with the input gear G1, a second counter gear G3 (third gear) that rotates integrally with the first counter gear G2, and a first counter gear G2. and the second counter gear G3.
- the differential gear mechanism DF includes a differential input gear G4 (fourth gear) meshing with the second counter gear G3, and distributes the rotation of the differential input gear G4 to the pair of output members OUT.
- the rotating electrical machine MG is a driving force source for the pair of wheels W
- the input gear G1, the counter gear mechanism CG, and the differential gear mechanism DF are transmission mechanisms that transmit driving force between the rotating electrical machine MG and the output member OUT. It is TM.
- the connecting portions of the pair of side gears (the first side gear S1 and the second side gear S2) of the differential gear mechanism DF with the output shaft OX or the output connecting shaft JT correspond to the pair of output members OUT.
- the vehicle drive device 100 further includes an inverter device INV that drives and controls the rotating electric machine MG.
- the case 1 includes a case body 2 and cover members (a first cover 11, a second cover 12, and a third cover 13) joined to the case body 2.
- the case body 2 includes a first accommodation chamber 5 that accommodates the rotary electric machine MG, the input shaft IN, the pair of output members OUT, the counter gear mechanism CG, and the differential gear mechanism DF, and a second accommodation chamber that accommodates the inverter device INV. 3 are integrally formed.
- integralally formed refers to a unitary member formed of a common material, eg, as a single die casting.
- the case body 2 includes a partition wall portion 4 that partitions the first storage chamber 5 and the second storage chamber 3 . That is, the case 1 has a first accommodation chamber 5 that accommodates at least the rotary electric machine MG, and a second accommodation chamber 3 that accommodates the inverter device INV and is separated from the first accommodation chamber 5 by the partition wall portion 4 . It has and is formed integrally. Further, the case body 2 is integrally formed with a support wall 8 extending in a direction orthogonal to the first axis A1.
- the rotary electric machine MG is arranged on a first axis A1
- the counter gear mechanism CG is arranged on a second axis A2 parallel to the first axis A1
- the differential gear mechanism DF and the pair of output members OUT are arranged on a separate third axis A3 parallel to the first axis A1 and the second axis A2.
- the first axis A1, the second axis A2, and the third axis A3 are virtual axes different from each other, and are arranged parallel to each other.
- the direction parallel to the axes is defined as the "axial direction L" of the vehicle drive device 100.
- One side in the axial direction L (in this embodiment, the side on which the rotor 82 is arranged with respect to the input gear G1 in the axial direction L) is referred to as the "first axial side L1”, and the opposite side is referred to as the "axial direction L1".
- second side L2 a direction orthogonal to each of the first axis A1, the second axis A2, and the third axis A3 is defined as a "radial direction R" with respect to each axis.
- the term "radial direction R" may simply be used.
- the direction along the vertical direction with the vehicle drive device 100 attached to the vehicle is defined as the “vertical direction V".
- the first vertical side V1 which is one side in the vertical direction V, is upward
- the second vertical side V2 which is the other side, is downward.
- one direction of the radial direction R and the vertical direction V coincide with each other.
- a direction perpendicular to the axial direction L and the vertical direction V is referred to as a "width direction H".
- width direction H One side in the width direction H is called a width direction first side H1, and the other side is called a width direction second side H2.
- width direction first side H1 One side in the width direction H
- second side H2 One side in the width direction H
- one direction of the radial direction R and the width direction H also coincide.
- terms relating to the direction, position, etc. of each member are concepts that include the state of having a difference due to an allowable manufacturing error.
- the direction of each member represents the direction when they are assembled in the vehicle drive system 100 .
- the first housing chamber 5 formed in the case 1 includes a peripheral wall portion 25 formed so as to surround the rotary electric machine MG, the counter gear mechanism CG, and the differential gear mechanism DF.
- the first storage chamber 5 in the case 1 is surrounded by a peripheral wall portion 25 in the vertical direction V and the width direction H, and both sides in the axial direction L are open.
- the opening on the axial first side L1 of the first storage chamber 5 is referred to as a first opening 21, and the opening on the axial second side L2 of the first storage chamber 5 is referred to as a second opening 22.
- the first opening 21 is closed by the first cover 11 joined to the end portion of the peripheral wall portion 25 on the first side L1 in the axial direction.
- the second opening 22 is closed by the second cover 12 joined to the end portion of the peripheral wall portion 25 on the second axial side L2. That is, the first housing chamber 5 is formed as a space surrounded by the peripheral wall portion 25 and the first cover 11 and the second cover 12 .
- a part of the peripheral wall portion 25 functions as a partition wall portion 4 that partitions the first storage chamber 5 and the second storage chamber 3 .
- a housing wall 30 extending along the vertical direction V is formed from the peripheral wall portion 25 .
- the storage wall 30 has an open end, and an opening (third opening 23 ) that opens from the second storage chamber 3 toward the outside of the case 1 is formed.
- the third opening 23 is closed by the third cover 13 joined to the end of the housing wall 30 . That is, the second storage chamber 3 is formed as a space surrounded by the partition wall portion 4 (surrounding wall portion 25 ), the storage wall 30 and the third cover 13 .
- the rotating electrical machine MG is a rotating electrical machine (Motor/Generator) that operates with multi-phase alternating current (for example, 3-phase alternating current), and can function as both a motor and a generator.
- the rotary electric machine MG is powered by receiving power from a DC power supply (high-voltage DC power supply) (not shown), or supplies (regenerates) power generated by inertial force of the vehicle to the DC power supply.
- the DC power supply is, for example, a high-voltage and large-capacity DC power supply configured by a secondary battery (battery) such as a nickel-hydrogen battery or a lithium-ion battery, an electric double layer capacitor, or the like, and the rated power supply voltage is, for example, 200. ⁇ 400 volts.
- the rotary electric machine MG is driven and controlled by the inverter device INV.
- the inverter device INV is connected to the DC power supply and the rotary electric machine MG, and includes an inverter circuit (not shown) that includes a plurality of switching elements and converts power between DC power and multi-phase AC power. , and an inverter control device (not shown) that controls the inverter circuit.
- the inverter circuit is configured as a power module in which, for example, a plurality of power switching elements (IGBTs (Insulated Gate Bipolar Transistors), power MOSFETs (Metal Oxide Semiconductor Field Effect Transistors), etc.) are integrated.
- IGBTs Insulated Gate Bipolar Transistors
- MOSFETs Metal Oxide Semiconductor Field Effect Transistors
- the inverter device INV also includes a smoothing capacitor for smoothing the voltage on the DC side of the inverter circuit, and is configured as a unit including the inverter control device and the inverter circuit (power module) as described above.
- the inverter device INV as a unit is arranged in the second storage chamber 3 inside the case 1 and is fixed to the case 1 with fastening members such as bolts.
- the rotary electric machine MG has a stator 81 fixed to the case 1 or the like, and a rotor 82 rotatably supported radially inward of the stator 81 .
- the stator 81 includes a stator core and a stator coil 83 wound around the stator core
- the rotor 82 includes a rotor core and permanent magnets arranged on the rotor core.
- the inner peripheral surface of the rotor shaft 84 is formed with a spline engaging portion 84s.
- a spline engaged portion 72s is formed on the outer peripheral surface of the input shaft IN.
- the rotor shaft 84 and the input shaft IN are connected to rotate integrally by spline engagement between the spline engaging portion 84s and the spline engaged portion 72s.
- An input gear G1 is formed on the input shaft IN, and the rotor 82 of the rotary electric machine MG is drivingly connected to the input gear G1 (see FIGS. 1 and 3) via the rotor shaft 84 and the input shaft IN.
- the input gear G1 is drivingly connected to the counter gear mechanism CG.
- the counter gear mechanism CG has two gears, a first counter gear G2 and a second counter gear G3, which are connected by a counter connecting shaft CX.
- the first counter gear G2 meshes with the input gear G1
- the second counter gear G3 meshes with the differential input gear G4 of the differential gear mechanism DF.
- the differential gear mechanism DF is drivingly connected to wheels W via an output shaft OX.
- the differential gear mechanism DF includes a plurality of bevel gears that mesh with each other.
- the first side gear S1 on the first side L1 in the axial direction is connected to one output shaft OX via the output connecting shaft JT
- the second side gear S2 on the second side L2 in the axial direction is connected to the other output shaft OX.
- the rotation and torque input to the differential input gear G4 are distributed and transmitted to two output shafts OX (that is, two wheels W) via the first side gear S1 and the second side gear, respectively. Accordingly, the vehicle drive device 100 can transmit the torque of the rotary electric machine MG to the wheels W to drive the vehicle.
- the input shaft IN is rotatably supported by the input bearing B1.
- the rotor shaft 84 is rotatably supported by a rotor bearing B2.
- the input bearing B1 includes a first input bearing B1a and a second input bearing B1b.
- the rotor bearing B2 includes a first rotor bearing B2a and a second rotor bearing B2b.
- the first rotor bearing B ⁇ b>2 a is arranged on the axial first side L ⁇ b>1 with respect to the rotor 82 and supported by the first cover 11 .
- the second rotor bearing B2b is arranged on the axial second side L2 with respect to the rotor 82 and supported by the support wall 8 .
- the first input bearing B1a is arranged on the first side L1 in the axial direction with respect to the input gear G1 and supported by the support wall 8 .
- the second input bearing B1b is arranged on the second side L2 in the axial direction with respect to the input gear G1 and supported by the second cover 12 .
- a support wall 8 that supports both the first input bearing B1a and the second rotor bearing B2b corresponds to the bearing support portion 18 .
- the partition wall portion 4 extending in the vertical direction V also supports both the first input bearing B1a and the second rotor bearing B2b, and a part of the partition wall portion 4 is also a bearing support portion. 18 (see FIG. 3). As shown in FIGS.
- a first input bearing B1a (first bearing) is supported by a bearing support portion 18 provided in the case 1, and a second rotor bearing B2b (second bearing) is supported by the first input bearing. It is supported by the same bearing support portion 18 as B1a.
- the first input bearing B1a (first bearing) and the second rotor bearing B2b (second bearing) are arranged adjacent to each other along the axial direction L. As shown in FIG.
- the input shaft IN is rotatably supported by the support wall 8 via the first input bearing B1a on the first axial side L1, and is supported by the second input bearing on the second axial side L2. It is rotatably supported by the second cover 12 via B1b.
- the counter gear mechanism CG is also rotatably supported by the support wall 8 via bearings on the first side L1 in the axial direction with respect to the first counter gear G2 and the second counter gear G3.
- the gear G2 and the second counter gear G3 are rotatably supported by the second cover 12 via bearings (the reference numerals of the bearings are omitted in the drawing.
- the differential gear mechanism is on the second side in the axial direction). The same applies to DF.).
- the differential gear mechanism DF is also rotatably supported by the support wall 8 via bearings on the first side L1 in the axial direction with respect to the gear mechanism portion DFG incorporated in the differential gear case DFC. It is rotatably supported by the second cover 12 via a bearing on the second side in the axial direction with respect to the mechanism portion DFG.
- the case body 2 is integrally formed so as to form the first storage chamber 5 and the second storage chamber 3 .
- the case for accommodating the inverter device INV The bottom wall of the member vibrates, and noise due to spatial resonance is likely to occur.
- the second storage chamber 3 is integrally formed with the first storage chamber 5 as one case 1 (case main body 2) as in this embodiment, the second storage chamber 3 has a bottom wall. It does not have to be provided. Therefore, it is possible to suppress the occurrence of noise due to spatial resonance due to vibration of such a bottom wall.
- the case main body 2 is integrally formed so as to form the first storage chamber 5 and the second storage chamber 3
- the first storage chamber 5 and the second storage chamber 3 formed separately are separated from each other.
- High rigidity can be imparted to the case 1 compared to the case 1 configured by assembling.
- the partition wall portion 4 that separates the first storage chamber 5 and the second storage chamber 3 can be shared, so that the case 1 can be made lighter. can be done.
- the shape of the input shaft IN is used to reduce torsional vibration of the input shaft, thereby reducing noise caused by the vibration.
- a characteristic structure of the input shaft IN will be described below.
- the input shaft IN is rotatably supported by the input bearing B1, has the input gear G1, and is connected to the rotor shaft 84 so as to rotate integrally therewith.
- the input shaft IN includes a first support portion 71 supported by a first input bearing B1a (first bearing) and a connecting portion 72 connected to the rotor shaft 84.
- the first support portion 71 is a portion where the input shaft IN is supported by the case 1 via a first input bearing B1a arranged on the first side L1 in the axial direction of the input gear G1.
- the connecting portion 72 is a portion that is provided on the first side L1 in the axial direction from the first supporting portion 71 and is connected to the rotor shaft 84 .
- a small diameter portion 73 is provided. That is, the diameter r73 of the small-diameter portion 73 is smaller than the outer diameter r71 of the first support portion 71 and the outer diameter of the connecting portion 72 (r72v or r72c). It is preferable that the diameter r73 of the small-diameter portion 73 is two-thirds or less of the outer diameter r71 of the first support portion 71 so that the rigidity of the input shaft IN can be effectively reduced.
- vibration can be reduced by a simple structure in which the small-diameter portion 73 is provided on a portion of the input shaft IN. For example, it is easier and less expensive than the case of reducing vibration by changing the overall thickness of the input shaft IN or by changing the axial distance of each part (for example, the rotor 82 and the input gear G1). can reduce vibration.
- FIG. 7 shows an axial partial enlarged cross-sectional view of a vehicle drive device 100Z of a comparative example.
- the diameter of the portion where the small-diameter portion 73 is formed is substantially the same as that of the first support portion 71 and the connecting portion 72 in this embodiment.
- this embodiment by providing the small-diameter portion 73, it is possible to reduce the torsional vibration of the input shaft IN and reduce the noise caused by the vibration.
- the rotor shaft 84 is rotatably supported by the first rotor bearing B2a and the second rotor bearing B2b, and the second rotor bearing B2b is supported by the bearing support portion 18 together with the first input bearing B1a. ing.
- the second rotor bearing B2b is located on the second axial side L2 of the rotor 82 and on the first axial side L1 of the first input bearing B1a (first bearing). are placed. That is, the second rotor bearing B2b is arranged in the axial direction L between the rotor 82 and the first input bearing B1a.
- a portion of the rotor shaft 84 that is supported by the case 1 through the second rotor bearing B2b is referred to as a rotor shaft support portion 84a. That is, the rotor shaft 84 has a rotor shaft support portion 84a. As shown in FIGS. 1 and 3, the small diameter portion 73 of the input shaft IN is arranged so as to overlap the rotor shaft support portion 84a when viewed in the radial direction R of the input shaft IN.
- the dimension of the input shaft IN in the axial direction L may be increased by the arrangement area of the small-diameter portion 73.
- the small-diameter portion 73 and the rotor shaft support portion 84a overlap when viewed in the radial direction, it is possible to suppress an increase in the size of the vehicle drive device 100 in the axial direction L due to the provision of the small-diameter portion 73 .
- the second rotor bearing B2b is supported by the same bearing support portion 18 as the first input bearing B1a. Since the first input bearing B ⁇ b>1 a and the second rotor bearing B ⁇ b>2 b are supported by the same bearing support portion 18 , vibrations from the rotary electric machine MG to the input shaft IN are easily transmitted to the case 1 .
- the small diameter portion 73 as in the present embodiment, such transmission of vibration is suppressed.
- an increase in the dimension in the axial direction L is suppressed.
- the transmission of vibration to the case 1 is reduced, so providing the input shaft IN with the small-diameter portion 73 is effective.
- the rotor shaft 84 and the input shaft IN are connected by spline engagement and rotate together. That is, a spline engaging portion 84s is formed on the inner peripheral surface of the rotor shaft 84, and a spline engaged portion 72s is formed on the outer peripheral surface of the connecting portion 72, so that they are spline-engaged.
- the small-diameter portion 73 is formed to have a smaller diameter than a diameter r72v of an imaginary circle connecting the vertexes of the projections of the spline engaged portion 72s. Accordingly, the small diameter portion 73 can be appropriately formed, and the rigidity of the small diameter portion 73 can be reduced compared to other portions of the input shaft IN.
- the diameter r73 of the small-diameter portion 73 is equal to the diameter of an imaginary circle connecting the bottoms of the recesses.
- the diameter r73 of the small-diameter portion 73 may be smaller than the diameter r72v of the virtual circle connecting the apexes of the convex portions of the spline engaged portion 72s. may be larger than the diameter r72c.
- the small-diameter portion 73 is less than or equal to the diameter r72c of the imaginary circle connecting the bottoms of the concave portions of the spline engaged portion 72s, the small-diameter portion 73 adjacent to the spline engaged portion 72s in the axial direction L is used.
- the spline engaged portion 72s can be easily processed.
- FIGS. 4 to 6 illustrate another embodiment of the vehicle drive system 100 (second vehicle drive system 100B).
- the vehicle drive device 100 is referred to as the first vehicle drive device 100A.
- the second vehicle drive system 100B will be described below, and the same parts as those of the first vehicle drive system 100A will be described with the same reference numerals.
- the second vehicle drive device 100B also includes a rotary electric machine MG including a rotor 82 and a rotor shaft 84 that rotates integrally with the rotor 82, and an input gear G1 (first gear), which is coupled to rotate integrally with the rotor shaft 84.
- a counter gear mechanism CG provided with a counter gear G3 (third gear) and a counter connecting shaft CX (connecting shaft) connecting the first counter gear G2 and the second counter gear G3, and a difference meshing with the second counter gear G3.
- a differential gear mechanism DF that includes a dynamic input gear G4 (fourth gear) and distributes the rotation of the differential input gear G4 to a pair of output members OUT, a rotating electric machine MG, an input shaft IN, a counter gear mechanism CG, and a differential gear mechanism DF. and a case 1 that houses the dynamic gear mechanism DF.
- the definitions of the axial direction L, the radial direction R, etc. are the same as those described above with reference to FIGS. 1 to 3 .
- the input shaft IN is connected to the first support portion 71 supported by the case 1 via the first input bearing B1a arranged on the first side L1 in the axial direction with respect to the input gear G1.
- a small diameter portion 73 formed to have a smaller diameter (r73) than the outer diameter r71 of the first support portion 71 and the outer diameter (here, “r72c”) of the connecting portion 72 is provided.
- the rotor shaft 84 is arranged on the second axial side L2 of the rotor 82 and on the first axial side L1 of the first input bearing B1a.
- a rotor shaft support portion 84a supported by the case 1 via a rotor bearing B2b is provided.
- the small diameter portion 73 is arranged so as to overlap the rotor shaft support portion 84a when viewed in the radial direction R of the input shaft IN.
- the first input bearing B1a is supported by the bearing support portion 18 provided in the case 1.
- the second rotor bearing B2b is also supported by the same bearing support portion 18 as the first input bearing B1a.
- the rotor shaft 84 and the input shaft IN are connected by spline engagement and rotate together. That is, a spline engaging portion 84s is formed on the inner peripheral surface of the rotor shaft 84, and a spline engaged portion 72s is formed on the outer peripheral surface of the connecting portion 72, so that they are spline-engaged.
- the small-diameter portion 73 has a smaller diameter than the diameter r72v of the virtual circle connecting the vertices of the convex portions of the spline engaged portions 72s. formed.
- the diameter r73 of the small diameter portion 73 is equal to the diameter of the virtual circle connecting the bottoms of the recesses.
- the small diameter portion 73 is formed so as to be equal to or less than the diameter r72c of the virtual circle connecting the bottoms of the concave portions of the engaged portion 72s.
- the diameter r73 of the small-diameter portion 73 is two-thirds or less of the outer diameter r71 of the first support portion 71 because the rigidity of the input shaft IN can be effectively reduced. be.
- the vehicle drive device 100 has a first input bearing B1a for positioning the first input bearing B1a in the axial direction L on the input shaft IN.
- a bearing positioning portion 77 is formed. Therefore, the diameter r75 of the input shaft IN between the first support portion 71 and the input gear G1 is partially or wholly larger than the outer diameter r71 of the first support portion 71 .
- the outer diameter of the input shaft IN between the first support portion 71 and the connecting portion 72 can be the same as or smaller than the outer diameter r71 of the first support portion 71 . Therefore, it is preferable that the small-diameter portion 73 is provided between the first support portion 71 and the connecting portion 72, which can be formed to have a relatively small diameter, rather than at a portion where the outer diameter of the input shaft IN is increased.
- the small diameter portion 73 is provided between the first support portion 71 and the connecting portion 72 in common to the first vehicle drive device 100A and the second vehicle drive device 100B.
- the small diameter portion 73 is arranged on the axial second side L2 of the input gear G1.
- the first support portion 71 and the input gear A small diameter portion 73 can also be formed in the shaft portion 75 between G1.
- the torque transmission path (torque transmission path from the input gear G1 to the first counter gear G2)
- a small-diameter portion 73 is provided at a position away from the . That is, since the small-diameter portion 73 is provided at a position different from the position where the torsional vibration is generated in the input shaft IN, the effect of reducing the torsional vibration of the input shaft IN and reducing the noise caused by the vibration is small.
- the frequency is higher than that of the torsional vibration.
- the effect of reducing high-frequency vibration is great.
- the small diameter portion 73 is formed between the first support portion 71 and the input gear G1
- the torsional stress is partially relieved in the first support portion 71. Therefore, the effect of reducing the torsional vibration of the input shaft IN and reducing the noise caused by the vibration is that the small diameter portion 73 is formed on the second side L2 in the axial direction of the input gear G1 in the first vehicle drive device 100A.
- it is smaller than when the small-diameter portion 73 is provided between the first support portion 71 and the connecting portion 72 .
- the small-diameter portion 73 be provided between the first support portion 71 and the connecting portion 72 in both the first vehicle drive device 100A and the second vehicle drive device 100B.
- the transmission of vibration is reduced without increasing the size of the vehicle drive device 100 or increasing the cost.
- the small-diameter portion 73 of the input shaft IN is arranged so as to overlap the rotor shaft support portion 84a when viewed in the radial direction R of the input shaft IN.
- the small-diameter portion 73 and the rotor shaft support portion 84a may not overlap when viewed in the radial direction.
- connection between the input shaft IN and the rotor shaft 84 is exemplified by spline engagement. However, it is not limited to this, and the connection between the input shaft IN and the rotor shaft 84 may be connected using other structures such as a key and a key groove. It is sufficient that the input shaft IN and the rotor shaft 84 are connected so as not to rotate relative to each other.
- the partition wall 4 partitions the first storage chamber 5 and the second storage chamber 3 from each other.
- the partition wall portion 4 may not be provided in the case body 2 .
- the vehicle drive system 100 including the rotary electric machine MG as the drive force source for the wheels W was exemplified.
- a hybrid drive device including both the engine and the rotary electric machine MG for example, various types of hybrid drive devices such as a so-called 1-motor parallel system and a 2-motor split system) may be used.
- the three-axis vehicle driving device 100 in which the three axes of the first axis A1, the second axis A2, and the third axis A3 are arranged in parallel has been described as an example.
- 100 may be two axes in which the first axis A1 and the second axis A2 are arranged in parallel.
- the vehicle drive device 100 may have a configuration in which one or more shafts different from the first shaft A1, the second shaft A2, and the third shaft A3 are further arranged, and four or more shafts are arranged. Also, in these cases, some axes may be arranged along directions that are not parallel to the other axes.
- a vehicle drive system includes a rotating electric machine (MG) having a rotor (82) and a rotor shaft (84) that rotates integrally with the rotor (82), and a first gear (G1). an input shaft (IN) connected to rotate integrally with the rotor shaft (84); a pair of output members (OUT) driven and connected to the wheels (W); and the first gear (G1).
- MG rotating electric machine
- rotor rotor
- G1 first gear
- an input shaft (IN) connected to rotate integrally with the rotor shaft (84); a pair of output members (OUT) driven and connected to the wheels (W); and the first gear (G1).
- a counter gear mechanism (CG) having a shaft (CX) and a fourth gear (G4) meshing with the third gear (G3) are provided.
- a case (1 ) the direction along the rotation axis of the rotor (82) is defined as an axial direction (L), and the rotor (82) is arranged with respect to the first gear (G1) in the axial direction (L).
- the input shaft (IN) is located on the first axial side (L1) relative to the first gear (G1).
- first support portion (71) supported by the case (1) via a first bearing (B1a) arranged at (L1); and a first axial side of the first support portion (71) (L1) between the connection portion (72) connected to the rotor shaft (84) and the first support portion (71) and the connection portion (72) in the axial direction (L) and a small diameter portion (73) formed to have a smaller diameter (r73) than the outer diameter (r71) of the first support portion (71) and the outer diameter of the connecting portion (72).
- first bearing (B1a) arranged at (L1)
- the rotor (82) can move from the rotor (82) to the first gear (G1). Adjustments can be made to partially reduce the stiffness of the torque transmission site to the . As a result, it is possible to shift the resonance point of torsional vibration of the input shaft (IN) caused by the vibration generated at the meshing portion of the gears, thereby reducing the sound pressure and vibration transmitted to the case (1). That is, vibration can be reduced by a simple structure in which the small-diameter portion (73) is provided on a portion of the input shaft (IN).
- vibration can be reduced easily and at low cost compared to the case where vibration is reduced by changing the distance in the axial direction (L) of each part (for example, the rotor (82) and the first gear (G1)). can.
- L the distance in the axial direction (L) of each part
- G1 the first gear
- the rotor shaft (84) is located on the second side (L2) in the axial direction from the rotor (82), and further from the first bearing (B1a).
- a rotor shaft support portion (84a) supported by the case (1) via a second bearing (B2b) arranged on the direction first side (L1) is provided, and the small diameter portion (73) is connected to the input shaft It is preferable that it is arranged so as to overlap the rotor shaft support portion (84a) when viewed in the radial direction (R) of (IN).
- the input shaft (IN) is increased by the arrangement area of the small diameter portion (73).
- the axial (L) dimension can be long. However, since the small-diameter portion (73) and the rotor shaft support portion (84a) overlap when viewed in the radial direction, the provision of the small-diameter portion (73) in the axial direction (L ) can be suppressed from increasing in size.
- the first bearing (B1a) is supported by a bearing support portion (18) provided in the case (1), and the second bearing (B2b) is supported by the first bearing. It is preferable to be supported by the same bearing support portion (18) as (B1a).
- a spline engaging portion (84s) is formed on the inner peripheral surface of the rotor shaft (84),
- a spline engaged portion (72s) is formed on the outer peripheral surface of the connecting portion (72),
- the small diameter portion (73) is preferably formed to have a smaller diameter than the diameter (r72v) of an imaginary circle connecting the vertices of the projections of the spline engaged portion (72s).
- the small diameter portion (73) can be appropriately formed to reduce the rigidity of the small diameter portion (73) compared to other portions of the input shaft (IN).
- the diameter (r73) of the small diameter portion (73) may be smaller than the diameter (r72v) of the virtual circle connecting the vertices of the projections of the spline engaged portion (72s).
- 72s) may be larger than the diameter (r72c) of the imaginary circle connecting the bottoms of the recesses.
- a spline engaging portion (84s) is formed on the inner peripheral surface of the rotor shaft (84), and a spline engaged portion (72s) is formed on the outer peripheral surface of the connecting portion (72). ) is formed, and the small diameter portion (73) is preferably formed to have a smaller diameter than the diameter (r72c) of an imaginary circle connecting the concave portions of the spline engaged portion (72s).
- the small diameter portion (73) can be appropriately formed to reduce the rigidity of the small diameter portion (73) compared to other portions of the input shaft (IN).
- the diameter (r73) of the small-diameter portion (73) is less than or equal to the diameter of the virtual circle connecting the bottoms of the concave portions of the spline engaged portion (72s), the spline engaged portion (72s) and the axial direction (L) Using the adjacent small diameter portion (73), the spline engaged portion (72s) can be easily processed.
- the input shaft (IN) preferably has a first bearing positioning portion (77) on the axial second side (L2) of the first bearing (B1a). is.
- a first bearing positioning portion (77) for positioning the first bearing (B1a) in the axial direction (L) is formed on the input shaft (IN). Therefore, the diameter (r75) of the input shaft (IN) between the first support (71) and the first gear (G1) is partially or wholly the outer diameter of the first support (71) ( It has a large diameter compared to r71).
- the outer diameter of the input shaft (IN) between the first support portion (71) and the connecting portion (72) can be the same as or smaller than the outer diameter (r71) of the first support portion (71). is. Therefore, the small diameter portion (73) is provided between the first support portion (71) and the connecting portion (72), which can be formed to have a relatively small diameter, rather than at a portion where the outer diameter of the input shaft (IN) is increased. preferably.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Details Of Gearings (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
Description
以下、その他の実施形態について説明する。尚、以下に説明する各実施形態の構成は、それぞれ単独で適用されるものに限られず、矛盾が生じない限り、他の実施形態の構成と組み合わせて適用することも可能である。
以下、上記において説明した車両用駆動装置(100)の概要について簡単に説明する。
前記連結部(72)の外周面にスプライン被係合部(72s)が形成され、
前記小径部(73)は、前記スプライン被係合部(72s)の凸部の頂点を結ぶ仮想円の径(r72v)よりも小径に形成されていると好適である。
Claims (6)
- ロータ及び前記ロータと一体回転するロータ軸を備えた回転電機と、
第1ギヤを備え、前記ロータ軸と一体回転するように連結された入力軸と、
それぞれ車輪に駆動連結される一対の出力部材と、
前記第1ギヤに噛み合う第2ギヤ、前記第2ギヤと一体的に回転する第3ギヤ、及び前記第2ギヤと前記第3ギヤとを連結する連結軸を備えたカウンタギヤ機構と、
前記第3ギヤに噛み合う第4ギヤを備え、前記第4ギヤの回転を一対の前記出力部材に分配する差動歯車機構と、
前記回転電機、前記入力軸、前記カウンタギヤ機構、及び前記差動歯車機構を収容するケースと、を備え、
前記ロータの回転軸に沿う方向を軸方向とし、前記軸方向における前記第1ギヤに対して前記ロータが配置された側を軸方向第1側とし、その反対側を軸方向第2側として、
前記入力軸は、前記第1ギヤよりも前記軸方向第1側に配置された第1軸受を介して前記ケースに支持された第1支持部と、前記第1支持部よりも前記軸方向第1側に設けられて前記ロータ軸に連結された連結部と、前記軸方向における前記第1支持部と前記連結部との間に設けられ、前記第1支持部の外径及び前記連結部の外径よりも小径に形成された小径部と、を備えている、車両用駆動装置。 - 前記ロータ軸は、前記ロータよりも前記軸方向第2側であって、前記第1軸受よりも前記軸方向第1側に配置された第2軸受を介して前記ケースに支持されたロータ軸支持部を備え、
前記小径部は、前記入力軸の径方向に沿う径方向視で、前記ロータ軸支持部と重複するように配置されている、請求項1に記載の車両用駆動装置。 - 前記第1軸受が、前記ケースが備える軸受支持部によって支持され、
前記第2軸受が、前記第1軸受と同じ前記軸受支持部によって支持されている、請求項2に記載の車両用駆動装置。 - 前記ロータ軸の内周面にスプライン係合部が形成され、
前記連結部の外周面にスプライン被係合部が形成され、
前記小径部は、前記スプライン被係合部の凸部の頂点を結ぶ仮想円の径よりも小径に形成されている、請求項1から3のいずれか一項に記載の車両用駆動装置。 - 前記ロータ軸の内周面にスプライン係合部が形成され、
前記連結部の外周面にスプライン被係合部が形成され、
前記小径部は、前記スプライン被係合部の凹部の底を結ぶ仮想円の径よりも小径に形成されている、請求項1から3のいずれか一項に記載の車両用駆動装置。 - 前記入力軸は、前記第1軸受よりも前記軸方向第2側に第1軸受位置決め部を有する、請求項1から5のいずれか一項に記載の車両用駆動装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2023510751A JP7485207B2 (ja) | 2021-03-31 | 2022-03-08 | 車両用駆動装置 |
US18/266,526 US20240039365A1 (en) | 2021-03-31 | 2022-03-08 | Vehicle drive device |
EP22779849.3A EP4261435A4 (en) | 2021-03-31 | 2022-03-08 | DRIVE DEVICE FOR A VEHICLE |
CN202280012574.3A CN116897495A (zh) | 2021-03-31 | 2022-03-08 | 车用驱动装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021059968 | 2021-03-31 | ||
JP2021-059968 | 2021-03-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022209625A1 true WO2022209625A1 (ja) | 2022-10-06 |
Family
ID=83458662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2022/009975 WO2022209625A1 (ja) | 2021-03-31 | 2022-03-08 | 車両用駆動装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20240039365A1 (ja) |
EP (1) | EP4261435A4 (ja) |
JP (1) | JP7485207B2 (ja) |
CN (1) | CN116897495A (ja) |
WO (1) | WO2022209625A1 (ja) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5587164U (ja) * | 1978-12-08 | 1980-06-16 | ||
JPH01193004A (ja) * | 1988-01-28 | 1989-08-03 | Toshiba Corp | 蒸気タービン発電機 |
WO2013125682A1 (ja) * | 2012-02-24 | 2013-08-29 | Ntn株式会社 | 車両用モータ駆動装置 |
WO2017069040A1 (ja) * | 2015-10-20 | 2017-04-27 | 株式会社エクセディ | 車両用動力伝達装置及び車両用動力伝達システム |
JP2019129608A (ja) | 2018-01-24 | 2019-08-01 | トヨタ自動車株式会社 | 車両用駆動装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5587164B2 (ja) | 2010-12-24 | 2014-09-10 | 三桜工業株式会社 | 管継手 |
US9991760B2 (en) * | 2011-07-19 | 2018-06-05 | Toyota Jidosha Kabushiki Kaisha | Drive device for vehicle |
-
2022
- 2022-03-08 EP EP22779849.3A patent/EP4261435A4/en active Pending
- 2022-03-08 US US18/266,526 patent/US20240039365A1/en active Pending
- 2022-03-08 WO PCT/JP2022/009975 patent/WO2022209625A1/ja active Application Filing
- 2022-03-08 JP JP2023510751A patent/JP7485207B2/ja active Active
- 2022-03-08 CN CN202280012574.3A patent/CN116897495A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5587164U (ja) * | 1978-12-08 | 1980-06-16 | ||
JPH01193004A (ja) * | 1988-01-28 | 1989-08-03 | Toshiba Corp | 蒸気タービン発電機 |
WO2013125682A1 (ja) * | 2012-02-24 | 2013-08-29 | Ntn株式会社 | 車両用モータ駆動装置 |
WO2017069040A1 (ja) * | 2015-10-20 | 2017-04-27 | 株式会社エクセディ | 車両用動力伝達装置及び車両用動力伝達システム |
JP2019129608A (ja) | 2018-01-24 | 2019-08-01 | トヨタ自動車株式会社 | 車両用駆動装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP4261435A4 |
Also Published As
Publication number | Publication date |
---|---|
EP4261435A1 (en) | 2023-10-18 |
US20240039365A1 (en) | 2024-02-01 |
JPWO2022209625A1 (ja) | 2022-10-06 |
JP7485207B2 (ja) | 2024-05-16 |
CN116897495A (zh) | 2023-10-17 |
EP4261435A4 (en) | 2024-08-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5035631B2 (ja) | 駆動装置 | |
JP4337803B2 (ja) | ハイブリッド車両の駆動装置 | |
JP7283581B2 (ja) | 車両用駆動装置 | |
JP5561156B2 (ja) | 電動車両 | |
WO2021131204A1 (ja) | 車両用駆動装置 | |
JP4968543B2 (ja) | 駆動装置 | |
WO2022209625A1 (ja) | 車両用駆動装置 | |
WO2021145114A1 (ja) | モータユニット及び電気自動車 | |
JP7513196B2 (ja) | 車両用駆動装置 | |
JP7448032B2 (ja) | 車両用駆動装置 | |
JP7477717B2 (ja) | 車両用駆動装置 | |
JP2017177964A (ja) | ハイブリッド車及び車両 | |
JP7509239B2 (ja) | 車両用駆動装置 | |
JP7437566B2 (ja) | 車両用駆動装置 | |
JP7517611B2 (ja) | 車両用駆動装置 | |
WO2024143511A1 (ja) | 駆動装置 | |
JP2023006748A (ja) | 車両用駆動装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22779849 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 18266526 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref document number: 2023510751 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202280012574.3 Country of ref document: CN |
|
ENP | Entry into the national phase |
Ref document number: 2022779849 Country of ref document: EP Effective date: 20230714 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |