JP2010206869A - Vehicle driving device - Google Patents

Vehicle driving device Download PDF

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JP2010206869A
JP2010206869A JP2009046767A JP2009046767A JP2010206869A JP 2010206869 A JP2010206869 A JP 2010206869A JP 2009046767 A JP2009046767 A JP 2009046767A JP 2009046767 A JP2009046767 A JP 2009046767A JP 2010206869 A JP2010206869 A JP 2010206869A
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case
rotating electrical
electrical machine
vehicle
axis
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Taketo Takeuchi
健登 竹内
Masatoshi Sugimoto
雅俊 杉本
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Aisin AW Co Ltd
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Aisin AW Co Ltd
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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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

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  • Electric Propulsion And Braking For Vehicles (AREA)
  • Motor Or Generator Frames (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle driving device to suppress heat generated from a connecting member provided in power supply wiring without increasing cost or device size. <P>SOLUTION: The vehicle driving device 1 includes: connecting members 21, 22 that electrically couple a rotating electrical machine power supply terminal disposed in a case 2 and external power supply wires 41, 42 disposed separately from the case 2 and connected to a controller 11 that supplies power to the rotating electrical machine. The case 2 has, on its outer wall surface, an inclined wall surface portion 6 whose normal vector has a component in a vehicle forward direction. The connecting members 21, 22 are disposed on the inclined wall surface portion 6. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、車両の駆動力源としての回転電機と、当該回転電機を収容するケースと、を備えた車両用駆動装置に関する。   The present invention relates to a vehicle drive device including a rotating electrical machine as a driving force source for a vehicle and a case that houses the rotating electrical machine.

近年、車両の駆動力源として回転電機を備えた電気自動車や、エンジン及び回転電機を備えたハイブリッド車が、燃費、環境保護等の点から注目を集めている（例えば、下記の特許文献１参照）。このような車両の駆動装置においては、インバータユニット等を備える制御装置と回転電機とは、これらの装置間での電力の授受が可能なように電源配線により電気的に接続される。そして、回転電機は、制御装置から電力の供給を受けて動力を発生したり、車両の減速時等に回生した電力を制御装置に供給する。   In recent years, an electric vehicle equipped with a rotating electrical machine as a driving force source of a vehicle and a hybrid vehicle equipped with an engine and a rotating electrical machine have attracted attention in terms of fuel consumption, environmental protection, and the like (for example, see Patent Document 1 below) ). In such a vehicle drive device, the control device including the inverter unit and the rotating electrical machine are electrically connected by power supply wiring so that power can be exchanged between these devices. The rotating electrical machine receives power supplied from the control device to generate power, or supplies the control device with power regenerated when the vehicle is decelerated.

ところで、上記のようなインバータユニット等を備える制御装置は、回転電機を収容するケースと一体的ではなく、当該ケースから分離して配置される場合がある。このような場合、電源配線は、ケース内に配置されるとともに回転電機に接続されるケース内電源配線と、ケース外に配置されるとともに制御装置に接続されるケース外電源配線と、当該ケース内電源配線と当該ケース外電源配線とを接続する接続部材とを備えて構成されることがある。例えば、特許文献１に記載の構成では、接続部材を構成する接続端子が、回転電機を収容するケースの上方の外壁面に配置されている。   By the way, a control apparatus provided with the above inverter units etc. is not integrated with the case which accommodates a rotary electric machine, and may be arrange | positioned separately from the said case. In such a case, the power supply wiring is arranged in the case and connected to the rotating electrical machine, the power supply wiring in the case arranged outside the case and connected to the control device, In some cases, a power supply wiring and a connection member for connecting the power supply wiring outside the case are provided. For example, in the configuration described in Patent Document 1, the connection terminals constituting the connection member are disposed on the outer wall surface above the case that houses the rotating electrical machine.

特開２００１−９７０５１号公報JP 2001-97051 A

上記のような車両用駆動装置において、回転電機には制御装置から高電圧且つ高周波数の交流電力が供給されるため、回転電機と制御装置との間の電源配線において発熱が生じる。回転電機がケース内に備えられ、制御装置が当該ケースから分離して備えられる構成においては、制御装置がケースと一体的に備えられる構成に比べ電源配線が長くなり、電源配線における発熱量が大きくなりやすい。特に、電源配線が、当該電源配線を構成する配線同士を接続するコネクタ等の接続部材を備える場合には、当該接続部材の発熱量が大きくなり得る。なぜなら、コネクタ等を構成する端子間の接触抵抗により、一般的に、接続部材配置箇所における電気抵抗は、その他の場所における電気抵抗より大きくなるからである。   In the vehicle drive device as described above, since high voltage and high frequency AC power is supplied to the rotating electrical machine from the control device, heat is generated in the power supply wiring between the rotating electrical machine and the control device. In the configuration in which the rotating electrical machine is provided in the case and the control device is provided separately from the case, the power supply wiring is longer than the configuration in which the control device is provided integrally with the case, and the amount of heat generated in the power supply wiring is large. Prone. In particular, when the power supply wiring includes a connection member such as a connector for connecting the wirings constituting the power supply wiring, the amount of heat generated by the connection member can be increased. This is because the electrical resistance at the connection member placement location is generally greater than the electrical resistance at other locations due to the contact resistance between the terminals constituting the connector or the like.

この発熱の問題に対処すべく、耐熱材料により接続部材を構成することが考えられるが、接続部材のコストの上昇を招来してしまう。また、接続部材を冷却するための液冷装置等のような冷却装置を設けることも考えられるが、コストの上昇だけでなく駆動装置の大型化をも招いてしまう。なお、特許文献１にはこのような接続部材の発熱対策について特に何らの手段も開示されていない。   In order to deal with this problem of heat generation, it is conceivable to form the connection member with a heat-resistant material, but this leads to an increase in the cost of the connection member. In addition, it is conceivable to provide a cooling device such as a liquid cooling device for cooling the connecting member. However, this not only increases the cost but also increases the size of the driving device. Patent Document 1 does not disclose any means in particular for measures against heat generation of such a connecting member.

本発明は上記の課題に鑑みてなされたものであり、その目的は、回転電機の制御を行う制御装置が、回転電機を収容するケースから分離して配置されている車両用駆動装置において、コストの上昇や装置の大型化を招くことなく、電源配線が備える接続部材の発熱を抑制することができる車両用駆動装置を提供することにある。   The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle drive device in which a control device that controls a rotating electrical machine is arranged separately from a case that houses the rotating electrical machine. An object of the present invention is to provide a vehicle drive device that can suppress the heat generation of a connection member provided in a power supply wiring without causing an increase in the size of the device or an increase in the size of the device.

上記目的を達成するための本発明に係る、車両の駆動力源としての回転電機と、当該回転電機を収容するケースと、を備えた車両用駆動装置の特徴構成は、前記ケースに配置された前記回転電機側の電源端子と、前記ケースとは分離して配置され、前記回転電機に電力を供給する制御装置に接続されるケース外電源配線とを電気的に接続する接続部材を備え、前記ケースは、その外壁面に、法線ベクトルが車両前方方向の成分を有する傾斜壁面部を備え、前記接続部材は、前記傾斜壁面部に配置されている点にある。   According to the present invention for achieving the above object, a characteristic configuration of a vehicle drive device including a rotating electrical machine as a vehicle driving force source and a case for housing the rotating electrical machine is disposed in the case. A power supply terminal on the rotating electrical machine side, and a connection member that is disposed separately from the case and electrically connects a power supply wiring outside the case connected to a control device that supplies power to the rotating electrical machine, The case includes an inclined wall surface portion having a normal vector having a component in the vehicle front direction on an outer wall surface thereof, and the connection member is disposed on the inclined wall surface portion.

なお、本願では、「回転電機」は、モータ（電動機）、ジェネレータ（発電機）、及び必要に応じてモータ及びジェネレータの双方の機能を果たすモータ・ジェネレータのいずれをも含む概念として用いている。   In the present application, the “rotary electric machine” is used as a concept including any of a motor (electric motor), a generator (generator), and a motor / generator functioning as both a motor and a generator as necessary.

一般に、車両の走行時には、駆動装置が収容される収容室内においても走行風が車両前方から車両後方側へ向かって流れる。この走行風は、収容室内を流れる際に、駆動装置のケース外壁面に接触するが、ケース外壁面の中でも特に車両前方を向く面、すなわち法線ベクトルが車両前方方向の成分を有する面に対してより高い割合で走行風が接触する。上記の特徴構成によれば、接続部材は、法線ベクトルが車両前方方向の成分を有する傾斜壁面部に配置されているため、走行風が当該接続部材に接触する割合を高めることができる。そして、走行風が接続部材と接触した際に、走行風との間の熱交換により接続部材が冷却される。これにより、特別な冷却装置等を設けることなく走行風を利用して接続部材の冷却を行うことができる。よって、コストの上昇や部材の大型化を招くことなく接続部材の発熱を抑制することができる。   In general, when the vehicle travels, traveling wind flows from the front of the vehicle toward the rear of the vehicle even in the accommodation chamber in which the drive device is accommodated. This traveling wind contacts the outer wall surface of the case of the driving device when flowing in the housing chamber, but the surface of the outer wall surface of the case particularly faces the front of the vehicle, that is, the surface whose normal vector has a component in the front direction of the vehicle. At a higher rate. According to said characteristic structure, since the normal vector is arrange | positioned at the inclined wall surface part which has a component of a vehicle forward direction, the ratio that driving | running | working wind contacts the said connection member can be raised. When the traveling wind comes into contact with the connecting member, the connecting member is cooled by heat exchange with the traveling wind. Thereby, the connection member can be cooled using traveling wind without providing a special cooling device or the like. Therefore, heat generation of the connection member can be suppressed without causing an increase in cost or an increase in the size of the member.

ここで、前記傾斜壁面部は、前記車両の走行時に走行風が通過するように配置されていると好適である。   Here, it is preferable that the inclined wall surface portion is arranged so that traveling wind passes when the vehicle travels.

この構成によれば、接続部材に対してより確実に走行風を接触させることができ、接続部材の発熱を更に抑制することができる。   According to this configuration, the traveling wind can be more reliably brought into contact with the connection member, and the heat generation of the connection member can be further suppressed.

また、前記ケース内に、前記回転電機として第一回転電機及び第二回転電機の２つを備えるとともに、前記車両の駆動力源からの駆動力を２つの車輪に分配する出力用差動歯車装置を更に備え、前記第一回転電機は、車両前後方向に略直交する第一軸上に配置され、前記第二回転電機は、前記第一軸と平行であって前記第一軸とは異なる第二軸上に、前記第一回転電機と軸方向に重複して配置され、前記出力用差動歯車装置は、前記第一軸と平行であって前記第一軸及び前記第二軸とは異なる第三軸上に配置され、前記第二軸は、前記第一軸よりも車両後上方側に配置され、前記第三軸は、前記第一軸より車両後方側であって前記第二軸より車両下方側に配置され、前記傾斜壁面部は、前記第一回転電機の外周面及び前記第二回転電機の外周面の双方に接する面と略平行であって車両後方側へ向かうに従って車両上方側へ向かうように傾斜した面に沿って形成されていると好適である。   In addition, the output differential gear device that includes the first rotating electric machine and the second rotating electric machine as the rotating electric machine in the case and distributes the driving force from the driving force source of the vehicle to two wheels. The first rotating electrical machine is disposed on a first axis substantially orthogonal to the vehicle longitudinal direction, and the second rotating electrical machine is parallel to the first axis and is different from the first axis. The output differential gear device is arranged on two axes so as to overlap with the first rotating electrical machine in the axial direction, and the output differential gear device is parallel to the first axis and different from the first axis and the second axis. Arranged on the third axis, the second axis is arranged on the rear upper side of the first axis, and the third axis is on the vehicle rear side of the first axis and is on the second axis. The inclined wall surface portion is disposed on the vehicle lower side, and the outer peripheral surface of the first rotating electrical machine and the outer periphery of the second rotating electrical machine A both surfaces substantially parallel in contact with of it is preferable that along the inclined surface to be directed to the vehicle upper side is formed toward the vehicle rear side.

なお、本願では、「軸方向に重複」は、軸方向における配置に関して２つの部材の少なくとも一部が互いに重複する状態を含む概念として用いている。   In the present application, “overlapping in the axial direction” is used as a concept including a state in which at least some of the two members overlap each other with respect to the arrangement in the axial direction.

この構成によれば、傾斜壁面部が、第一回転電機の外周面及び第二回転電機の外周面の双方に接する面と略平行な面に沿って形成されるため、第一回転電機、第二回転電機、及び出力用差動歯車装置を径方向に互いに隣接して配置し、これらを一体的に収容するケースがこれら３つの装置の外周面に全体として沿うような形状で形成されている場合において、そのようなケースの形状を利用して、ケースの大型化を抑制しつつ傾斜壁面部を形成することができる。
また、傾斜壁面部が車両後方側へ向かうに従って車両上方側へ向かうように傾斜した面に沿って形成されることになるため、傾斜壁面部が走行風の車両後方側への流れを大きく阻害することもない。
さらに、傾斜壁面部が、第一回転電機の外周面及び第二回転電機の外周面の双方に接する面と略平行に形成されるため、接続部材と第一回転電機との距離、及び当該接続部材と第二回転電機との距離の双方が共に短くなるように接続部材を傾斜壁面部に配置することができる。従って、接続部材の配置箇所に近接してケースに配置される回転電機側の電源端子と第一回転電機及び第二回転電機とを電気的に接続するケース内電源配線を短くすることができ、ケース内電源配線の抵抗による熱損失の発生を抑制することができる。 According to this configuration, the inclined wall surface portion is formed along a surface substantially parallel to a surface in contact with both the outer peripheral surface of the first rotating electric machine and the outer peripheral surface of the second rotating electric machine. The two-rotating electric machine and the output differential gear device are arranged adjacent to each other in the radial direction, and a case for housing them integrally is formed in a shape that generally follows the outer peripheral surface of these three devices. In some cases, the shape of the case can be used to form the inclined wall surface portion while suppressing the enlargement of the case.
Further, since the inclined wall surface portion is formed along the inclined surface so as to go to the vehicle upper side as it goes to the vehicle rear side, the inclined wall surface portion greatly impedes the flow of traveling wind toward the vehicle rear side. There is nothing.
Furthermore, since the inclined wall surface portion is formed substantially parallel to the surface in contact with both the outer peripheral surface of the first rotating electrical machine and the outer peripheral surface of the second rotating electrical machine, the distance between the connecting member and the first rotating electrical machine, and the connection The connecting member can be arranged on the inclined wall surface portion so that both the distance between the member and the second rotating electrical machine are shortened. Accordingly, it is possible to shorten the power supply wiring in the case for electrically connecting the power terminal on the rotating electrical machine side disposed in the case in the vicinity of the connection member placement location and the first rotating electrical machine and the second rotating electrical machine, Generation of heat loss due to the resistance of the power supply wiring in the case can be suppressed.

また、前記接続部材として、前記第一回転電機側の電源端子と前記ケース外電源配線とを電気的に接続する第一接続部材と、前記第二回転電機側の電源端子と前記ケース外電源配線とを電気的に接続する第二接続部材と、を備え、前記第一接続部材と前記第二接続部材とが、前記傾斜壁面部に沿って車両上下方向に並べて配置されていると好適である。   Further, as the connection member, a first connection member for electrically connecting the power terminal on the first rotating electrical machine side and the power supply wiring outside the case, a power supply terminal on the second rotating electrical machine side, and the power supply wiring outside the case It is preferable that the first connecting member and the second connecting member are arranged side by side in the vehicle vertical direction along the inclined wall surface portion. .

この構成によれば、各回転電機に対応して２つの接続部材を備える場合において、接続部材が配置されることによる傾斜壁面部の軸方向における大型化を抑制することができる。   According to this configuration, when two connecting members are provided corresponding to each rotating electrical machine, it is possible to suppress an increase in the size of the inclined wall surface portion in the axial direction due to the arrangement of the connecting members.

また、車両の駆動力源としてのエンジンに駆動連結されるエンジン連結部材を更に備え、当該エンジンの回転軸が前記第一軸上に配置されていると好適である。   In addition, it is preferable that an engine connecting member that is drivingly connected to an engine as a driving force source of the vehicle is further provided, and the rotation shaft of the engine is disposed on the first shaft.

なお、本願では、「駆動連結」は、２つの回転要素が駆動力を伝達可能に連結された状態を指し、当該２つの回転要素が一体的に回転するように連結された状態、或いは当該２つの回転要素が一又は二以上の伝動部材を介して駆動力を伝達可能に連結された状態を含む概念として用いている。このような伝動部材としては、回転を同速で又は変速して伝達する各種の部材が含まれ、例えば、軸、歯車機構、ベルト、チェーン等が含まれる。   In the present application, “driving connection” refers to a state where two rotating elements are connected so as to be able to transmit a driving force, and the two rotating elements are connected so as to rotate integrally, or the two This is used as a concept including a state in which two rotating elements are connected so as to be able to transmit a driving force via one or more transmission members. Examples of such a transmission member include various members that transmit rotation at the same speed or a variable speed, and include, for example, a shaft, a gear mechanism, a belt, a chain, and the like.

この構成の車両用駆動装置は、駆動力源としてエンジンと回転電機の双方を備えるハイブリッド車両用の駆動装置にも好適に用いることができる。   The vehicle drive device having this configuration can also be suitably used for a drive device for a hybrid vehicle that includes both an engine and a rotating electric machine as drive power sources.

また、前記ケースは、前記第一軸に略平行な軸を有して前記第一回転電機及び前記第二回転電機を主に収容する異形筒状のケース本体部と、当該ケース本体部の軸方向一方側の端部を閉塞する端部カバー部材と、前記ケース本体部の軸方向他方側の端部を閉塞するとともに前記ケース本体部と前記エンジンとを連結する連結カバー部材と、を備え、前記傾斜壁面部は、前記ケース本体部の周壁の一部により構成されていると好適である。   The case has a deformed cylindrical case main body having an axis substantially parallel to the first axis and mainly housing the first rotating electric machine and the second rotating electric machine, and an axis of the case main body An end cover member that closes the end on one side in the direction, and a connecting cover member that closes the end on the other side in the axial direction of the case main body and connects the case main body and the engine, The inclined wall surface portion is preferably constituted by a part of the peripheral wall of the case main body portion.

この構成によれば、傾斜壁面部をケース本体部と一体的に形成することができる。よって、ケース本体部を鋳造部品とする場合に、傾斜壁面部を形成する工程を簡素なものとすることができる。
また、第一回転電機及び第二回転電機が収容されるケース本体部と一体的に傾斜壁面部を設けることにより、当該傾斜壁面部に近接して配置される回転電機側の電源端子と、第一回転電機及び第二回転電機とを電気的に接続するケース内電源配線の構成を簡素なものとすることができるとともに、その接続作業を容易にできる。 According to this configuration, the inclined wall surface portion can be formed integrally with the case main body portion. Therefore, when the case main body portion is a cast part, the process of forming the inclined wall surface portion can be simplified.
Further, by providing the inclined wall surface portion integrally with the case main body portion in which the first rotating electric machine and the second rotating electric machine are housed, the power terminal on the rotating electric machine side disposed close to the inclined wall surface portion, The configuration of the in-case power supply wiring for electrically connecting the first rotating electrical machine and the second rotating electrical machine can be simplified, and the connection work can be facilitated.

傾斜壁面部に直交する方向から見た車両用駆動装置の斜視図である。It is the perspective view of the drive device for vehicles seen from the direction orthogonal to an inclined wall surface part. 接続部材を取り外した状態を示す模式図である。It is a schematic diagram which shows the state which removed the connection member. 車両用駆動装置の側面図である。It is a side view of the drive device for vehicles. 車両用駆動装置の斜視図である。It is a perspective view of the drive device for vehicles. 車両内での車両用駆動装置の配置を概略的に示す模式図である。It is a schematic diagram which shows roughly arrangement | positioning of the vehicle drive device in a vehicle.

本発明の実施形態について図面に基づいて説明する。ここでは、本発明に係る車両用駆動装置をＦＦ（Front Engine Front Drive）方式のハイブリッド車両に適用した場合を例として説明する。図１に示されるように、本実施形態に係る車両用駆動装置１は、ケース本体部３、端部カバー部材４、及び連結カバー部材５を備えるケース２を有し、ケース本体部３に第一接続部材２１及び第二接続部材２２が配置されている。そして、第一接続部材２１を介してケース本体部３に収容された第一回転電機ＭＧ１と制御装置１１とが電気的に接続されるとともに、第二接続部材２２を介してケース本体部３に収容された第二回転電機ＭＧ２と制御装置１１とが電気的に接続されている。本実施形態に係る車両用駆動装置１は、これらの第一接続部材２１及び第二接続部材２２の配置構成に特徴を有する。以下、本実施形態に係る車両用駆動装置１の全体構成、ケース２の構成、接続部材２１，２２の配置構成について順に詳細に説明する。   Embodiments of the present invention will be described with reference to the drawings. Here, a case where the vehicle drive device according to the present invention is applied to an FF (Front Engine Front Drive) hybrid vehicle will be described as an example. As shown in FIG. 1, the vehicle drive device 1 according to the present embodiment includes a case 2 including a case body 3, an end cover member 4, and a connection cover member 5. One connection member 21 and second connection member 22 are arranged. The first rotating electrical machine MG1 accommodated in the case main body 3 and the control device 11 are electrically connected via the first connection member 21 and connected to the case main body 3 via the second connection member 22. The accommodated second rotating electrical machine MG2 and the control device 11 are electrically connected. The vehicle drive device 1 according to the present embodiment is characterized by the arrangement configuration of the first connection member 21 and the second connection member 22. Hereinafter, the overall configuration of the vehicle drive device 1 according to the present embodiment, the configuration of the case 2, and the arrangement configuration of the connection members 21 and 22 will be described in detail in order.

なお、以下の説明では特に断らない限り、車両用駆動装置１が搭載される車両Ｃ（図５参照）を基準として、前後、左右、上下の各方向を定義している。そして、図３における上下方向及び左右方向は、車両用駆動装置１を車両Ｃに搭載した状態（車両搭載状態）における車両Ｃの上下方向及び前後方向と一致する。よって、図３において、上側は「上」、下側は「下」、左側は「前」、右側は「後」、紙面奥側は「右」、紙面手前側は「左」である。   In the following description, unless otherwise specified, the front-rear, left-right, and upper-lower directions are defined with reference to the vehicle C (see FIG. 5) on which the vehicle drive device 1 is mounted. The up-down direction and the left-right direction in FIG. 3 coincide with the up-down direction and the front-rear direction of the vehicle C when the vehicle drive device 1 is mounted on the vehicle C (vehicle-mounted state). Therefore, in FIG. 3, the upper side is “upper”, the lower side is “lower”, the left side is “front”, the right side is “rear”, the back side of the paper is “right”, and the front side of the paper is “left”.

１．全体構成
本実施形態に係る車両用駆動装置１は、図３に示されるように、車両Ｃの駆動力源としての２つの回転電機（第一回転電機ＭＧ１及び第二回転電機ＭＧ２）、及び、車両Ｃの駆動力源からの駆動力を２つの車輪Ｗに分配する出力用差動歯車装置ＤＦをケース２の内部に備えている。なお、図３においては、ケース２の内部に収容されている第一回転電機ＭＧ１、第二回転電機ＭＧ２、及び出力用差動歯車装置ＤＦの外周面を破線で示してある。本例では、第二回転電機ＭＧ２は第一回転電機ＭＧ１よりも大径とされている。また、車両用駆動装置１が搭載される車両Ｃには、駆動力源としてのエンジンＥが更に備えられている。そして、図１及び図５に示されるように、エンジンＥは、車両用駆動装置１の右側に隣接して横置きされ、エンジンＥと車両用駆動装置１とはエンジンＥの出力軸Ｅｏ（図５参照）の軸方向（左右方向）に連結されている。ここで、エンジンＥとしては、例えば、火花点火機関（ガソリンエンジン）や圧縮着火機関（ディーゼルエンジン）等の公知の各種の内燃機関を用いることができる。このように、本実施形態に係る車両Ｃは、駆動力源としてエンジンＥ及び２つの回転電機ＭＧ１，ＭＧ２を備え、これらの駆動力源が出力する回転駆動力によって走行するハイブリッド車両である。なお、図５に示す例では、出力用差動歯車装置ＤＦの出力軸ＤＦｏは、前後方向でエンジンＥの出力軸Ｅｏよりも後方側に配置されているが、エンジンＥの出力軸Ｅｏよりも前方側に配置される構成としても良い。 1. Overall Configuration As shown in FIG. 3, the vehicle drive device 1 according to the present embodiment includes two rotating electric machines (a first rotating electric machine MG1 and a second rotating electric machine MG2) as driving force sources for the vehicle C, and An output differential gear unit DF that distributes the driving force from the driving force source of the vehicle C to the two wheels W is provided inside the case 2. In FIG. 3, the outer peripheral surfaces of the first rotating electrical machine MG1, the second rotating electrical machine MG2, and the output differential gear device DF housed in the case 2 are indicated by broken lines. In this example, the second rotating electrical machine MG2 has a larger diameter than the first rotating electrical machine MG1. The vehicle C on which the vehicle drive device 1 is mounted further includes an engine E as a driving force source. As shown in FIGS. 1 and 5, the engine E is placed side by side adjacent to the right side of the vehicle drive device 1, and the engine E and the vehicle drive device 1 are connected to an output shaft Eo (see FIG. 5)) in the axial direction (left-right direction). Here, as the engine E, for example, various known internal combustion engines such as a spark ignition engine (gasoline engine) and a compression ignition engine (diesel engine) can be used. Thus, the vehicle C according to the present embodiment is a hybrid vehicle that includes the engine E and the two rotating electrical machines MG1 and MG2 as driving force sources and travels by the rotational driving force output by these driving force sources. In the example shown in FIG. 5, the output shaft DFO of the output differential gear device DF is disposed on the rear side of the output shaft Eo of the engine E in the front-rear direction, but is more than the output shaft Eo of the engine E. It is good also as a structure arrange | positioned ahead.

図５に示されるように、車両用駆動装置１はエンジン連結部材ＩをエンジンＥの出力軸Ｅｏと同軸上に有し、本実施形態においては、エンジン連結部材ＩとエンジンＥの出力軸Ｅｏとはダンパ（図示せず）を介して駆動連結されている。すなわち、エンジン連結部材Ｉは、ダンパを介してエンジンＥに駆動連結されている。よって、エンジンＥが出力した回転駆動力は、出力軸Ｅｏ及びダンパを介してエンジン連結部材Ｉへ伝達される。なお、出力軸Ｅｏとエンジン連結部材Ｉとがダンパを介さず一体回転するように駆動連結される構成としても良い。また、ダンパ、クラッチ、及びフライホイールの中から選択した何れか一つや二つの要素、或いはこれら三つの全ての要素を介して、出力軸Ｅｏとエンジン連結部材Ｉとが駆動連結される構成としても良い。   As shown in FIG. 5, the vehicle drive device 1 has an engine connecting member I coaxially with the output shaft Eo of the engine E, and in this embodiment, the engine connecting member I and the output shaft Eo of the engine E Are driven and connected via a damper (not shown). That is, the engine connecting member I is drivingly connected to the engine E via the damper. Therefore, the rotational driving force output from the engine E is transmitted to the engine connecting member I via the output shaft Eo and the damper. The output shaft Eo and the engine connecting member I may be drivingly connected so as to rotate integrally without using a damper. Further, the output shaft Eo and the engine connecting member I may be driven and connected via any one or two elements selected from the damper, the clutch, and the flywheel, or all three elements. good.

エンジンＥの回転駆動力が伝達される上記のエンジン連結部材Ｉ、第一回転電機ＭＧ１の回転駆動力が伝達される第一回転電機ＭＧ１のロータ軸（図示せず）、第二回転電機ＭＧ２の回転駆動力が伝達される第二回転電機のロータ軸（図示せず）、及び出力用差動歯車装置ＤＦの出力軸ＤＦｏは、ケース２の内部に備えられる駆動伝達機構（図示せず）を介して駆動連結されている。ここで、駆動伝達機構は、例えば、遊星歯車機構等の差動歯車機構や、カウンタギヤ機構、変速機構等を備えて構成することができる。また、出力用差動歯車装置ＤＦは、互いに噛み合う複数の傘歯車を用いた差動歯車機構を有して構成することができる。そして、出力用差動歯車装置ＤＦの出力軸ＤＦｏは、図５に示されるように、車輪Ｗに駆動連結されている。よって、出力軸Ｅｏを介してエンジン連結部材Ｉに入力されたエンジンＥの回転駆動力、第一回転電機ＭＧ１の回転駆動力、及び第二回転電機ＭＧ２の回転駆動力は、出力用差動歯車装置ＤＦの出力軸ＤＦｏを介して車輪Ｗに伝達され、これらの回転駆動力により車両Ｃが走行する。例えば、第一回転電機ＭＧ１及び第二回転電機ＭＧ２の一方又は双方のみを駆動するＥＶ（Electric Vehicle：電動車両）走行モードや、第一回転電機ＭＧ１及び第二回転電機ＭＧ２の一方又は双方に加えエンジンＥを駆動するハイブリッド走行モード等を切り替えて車両Ｃを走行させることができる。   The engine connecting member I to which the rotational driving force of the engine E is transmitted, the rotor shaft (not shown) of the first rotating electrical machine MG1 to which the rotational driving force of the first rotating electrical machine MG1 is transmitted, and the second rotating electrical machine MG2. The rotor shaft (not shown) of the second rotating electrical machine to which the rotational driving force is transmitted and the output shaft DFO of the output differential gear device DF are provided with a drive transmission mechanism (not shown) provided inside the case 2. Are connected via a drive. Here, the drive transmission mechanism can be configured to include, for example, a differential gear mechanism such as a planetary gear mechanism, a counter gear mechanism, a transmission mechanism, and the like. Further, the output differential gear device DF can include a differential gear mechanism using a plurality of bevel gears that mesh with each other. The output shaft DFO of the output differential gear device DF is drivingly connected to the wheels W as shown in FIG. Therefore, the rotational driving force of the engine E, the rotational driving force of the first rotating electrical machine MG1 and the rotational driving force of the second rotating electrical machine MG2 input to the engine connecting member I via the output shaft Eo are output differential gears. It is transmitted to the wheels W through the output shaft DFO of the device DF, and the vehicle C travels by these rotational driving forces. For example, in addition to an EV (Electric Vehicle) driving mode that drives only one or both of the first rotating electrical machine MG1 and the second rotating electrical machine MG2, and one or both of the first rotating electrical machine MG1 and the second rotating electrical machine MG2. The vehicle C can travel by switching the hybrid travel mode for driving the engine E or the like.

図１に示されるように、車両Ｃは、第一回転電機ＭＧ１及び第二回転電機ＭＧ２の制御を行う制御装置１１と、制御装置１１との間で電力の授受を行うことが可能に接続されている蓄電装置としてのバッテリ１０とを備えている。なお、制御装置１１は、車両用駆動装置１のケース２とは分離して配置されている。そして、車両用駆動装置１と制御装置１１とは、第一ケース外電源配線４１及び第二ケース外電源配線４２により電気的に接続されており、これらのケース外電源配線４１，４２を介して、車両用駆動装置１が備える第一回転電機ＭＧ１及び第二回転電機ＭＧ２と、制御装置１１との間で電力の授受が可能となっている。なお、本実施形態においては、第一ケース外電源配線４１及び第二ケース外電源配線４２を備えて、本発明におけるケース外電源配線が構成されている。   As shown in FIG. 1, the vehicle C is connected to be able to exchange power between the control device 11 that controls the first rotating electrical machine MG <b> 1 and the second rotating electrical machine MG <b> 2 and the control device 11. And a battery 10 as a power storage device. The control device 11 is disposed separately from the case 2 of the vehicle drive device 1. The vehicle drive device 1 and the control device 11 are electrically connected by a first case-external power supply line 41 and a second case-external power supply line 42, and these case-external power supply lines 41, 42 are used. Electric power can be exchanged between the control device 11 and the first rotary electric machine MG1 and the second rotary electric machine MG2 provided in the vehicle drive device 1. In the present embodiment, the first case outside power supply wiring 41 and the second case outside power supply wiring 42 are provided, and the outside case power supply wiring in the present invention is configured.

制御装置１１は、少なくともインバータユニットを含んで構成されている。ここで、インバータユニットは、ＩＧＢＴ（絶縁ゲートバイポーラトランジスタ）やＭＯＳＦＥＴ等のスイッチング素子を用いて構成されるブリッジ回路を備え、直流電力と交流電力との間の変換を行う。具体的には、制御装置１１は、バッテリ１０から供給される直流電力を交流電力に変換して、その交流電力を車両用駆動装置１が備える第一回転電機ＭＧ１や第二回転電機ＭＧ２へ供給する。また、制御装置１１は、第一回転電機ＭＧ１や第二回転電機ＭＧ２から供給される交流電力を直流電力に変換して、その直流電力をバッテリ１０へ供給する。なお、制御装置１１は、インバータユニットに加え、バッテリ１０からの入力電源を平滑化する平滑コンデンサや、リアクトル等を備えて構成されていても良い。また、バッテリ１０に代えてキャパシタ等により蓄電装置を構成したり、複数種類の蓄電装置を併用しても良い。更には、家庭用電源等の外部電源により充電可能に蓄電装置を構成しても良い。   The control device 11 includes at least an inverter unit. Here, the inverter unit includes a bridge circuit configured using a switching element such as an IGBT (Insulated Gate Bipolar Transistor) or a MOSFET, and performs conversion between DC power and AC power. Specifically, the control device 11 converts the DC power supplied from the battery 10 into AC power, and supplies the AC power to the first rotating electrical machine MG1 and the second rotating electrical machine MG2 provided in the vehicle drive device 1. To do. The control device 11 converts AC power supplied from the first rotary electric machine MG1 and the second rotary electric machine MG2 into DC power and supplies the DC power to the battery 10. In addition to the inverter unit, the control device 11 may include a smoothing capacitor that smoothes the input power from the battery 10, a reactor, and the like. Further, a power storage device may be configured by a capacitor or the like instead of the battery 10, or a plurality of types of power storage devices may be used in combination. Further, the power storage device may be configured to be rechargeable by an external power source such as a household power source.

第一回転電機ＭＧ１及び第二回転電機ＭＧ２のそれぞれは、電力の供給を受けて動力を発生するモータ（電動機）としての機能と、動力の供給を受けて電力を発生するジェネレータ（発電機）としての機能を果たすことが可能とされている。なお、第一回転電機ＭＧ１及び第二回転電機ＭＧ２は、それぞれ回転方向と回転駆動力の向きとの関係に応じてジェネレータ及びモータとしての機能が切り替わる。そして、第一回転電機ＭＧ１及び第二回転電機ＭＧ２は、ジェネレータとして機能する場合には、発電した電力をバッテリ１０に供給して充電し、或いは当該電力をモータとして機能する他方の回転電機ＭＧ１，ＭＧ２に供給して力行させる。また、第一回転電機ＭＧ１及び第二回転電機ＭＧ２は、モータとして機能する場合には、蓄電装置に充電され、或いはジェネレータとして機能する他方の回転電機ＭＧ１，ＭＧ２により発電された電力の供給を受けて力行する。   Each of the first rotating electrical machine MG1 and the second rotating electrical machine MG2 functions as a motor (electric motor) that receives power supply and generates power, and as a generator (generator) that generates power by receiving power supply. It is possible to fulfill the functions. Note that the functions of the generator and the motor of the first rotating electrical machine MG1 and the second rotating electrical machine MG2 are switched according to the relationship between the rotation direction and the direction of the rotational driving force, respectively. When the first rotary electric machine MG1 and the second rotary electric machine MG2 function as generators, the generated electric power is supplied to the battery 10 and charged, or the other rotary electric machine MG1, which functions as a motor, is supplied. Supply to MG2 for powering. Further, when the first rotating electrical machine MG1 and the second rotating electrical machine MG2 function as motors, the power storage device is charged or supplied with the electric power generated by the other rotating electrical machines MG1 and MG2 functioning as generators. To power.

また、本例では、第一回転電機ＭＧ１及び第二回転電機ＭＧ２は、三相交流で駆動される回転電機であり、図１に示されるように、第一ケース外電源配線４１及び第二ケース外電源配線４２のそれぞれは、その内部にＵ相、Ｖ相、Ｗ相の三相に対応する３つの電源配線（図１中の一点鎖線）を備えて構成されている。なお、第一ケース外電源配線４１及び第二ケース外電源配線４２のそれぞれが、３つの電源配線をまとめて１つの電源配線として構成されたものではなく、三相に対応する３つの電源配線が個別に存在する形態としても良い。また、第一回転電機ＭＧ１及び第二回転電機ＭＧ２を、三相交流以外の電力により駆動される回転電機としても良い。   Further, in this example, the first rotating electrical machine MG1 and the second rotating electrical machine MG2 are rotating electrical machines driven by a three-phase alternating current, and as shown in FIG. Each of the external power supply wirings 42 includes three power supply wirings (one-dot chain lines in FIG. 1) corresponding to the three phases of the U phase, the V phase, and the W phase. Each of the first case external power supply wiring 41 and the second case external power supply wiring 42 is not configured as a single power supply wiring by combining the three power supply wirings, but three power supply wirings corresponding to three phases are provided. It is good also as a form which exists separately. The first rotating electrical machine MG1 and the second rotating electrical machine MG2 may be rotating electrical machines that are driven by electric power other than three-phase alternating current.

２．ケースの構成
ケース２は、図１に示されるように、ケース本体部３、端部カバー部材４、及び連結カバー部材５を備えている。ケース本体部３は、図３及び図４によく示されるように、後述する第一軸Ａ１に略平行な軸を有する異形筒状に形成されており、第一回転電機ＭＧ１及び第二回転電機ＭＧ２を主に収容している。端部カバー部材４は、図１及び図４によく示されるように、ケース本体部３の軸方向一方側（左側）の端部を閉塞する部材である。また、連結カバー部材５は、図１及び図４によく示されるように、ケース本体部３の軸方向他方側（右側）の端部を閉塞するとともに、ケース本体部３とエンジンＥとを連結する部材である。上記のように、本実施形態においては、車両用駆動装置１のエンジン連結部材ＩとエンジンＥの出力軸Ｅｏとはダンパを介して駆動連結されており、このダンパが連結カバー部材５の内部に収容されている。 2. Configuration of Case As shown in FIG. 1, the case 2 includes a case main body 3, an end cover member 4, and a connection cover member 5. As shown in FIGS. 3 and 4, the case main body 3 is formed in a deformed cylindrical shape having an axis substantially parallel to a first axis A <b> 1 to be described later, and the first rotating electric machine MG <b> 1 and the second rotating electric machine. MG2 is mainly accommodated. The end cover member 4 is a member that closes an end portion on one side (left side) in the axial direction of the case main body 3 as well shown in FIGS. 1 and 4. 1 and 4, the connecting cover member 5 closes the end portion on the other side (right side) in the axial direction of the case main body 3 and connects the case main body 3 and the engine E. It is a member to do. As described above, in the present embodiment, the engine connecting member I of the vehicle drive device 1 and the output shaft Eo of the engine E are drivingly connected via the damper, and this damper is placed inside the connecting cover member 5. Contained.

ケース２の内部には、図３に示されるように、第一回転電機ＭＧ１、第二回転電機ＭＧ２、及び出力用差動歯車装置ＤＦが収容されている。第一回転電機ＭＧ１は前後方向に略直交する第一軸Ａ１上に配置されている。第二回転電機ＭＧ２は、第一軸Ａ１と平行であって第一軸Ａ１とは異なる第二軸Ａ２上に、第一回転電機ＭＧ１と軸方向（図３における紙面に垂直な方向）に重複して配置されている。また、出力用差動歯車装置ＤＦは、第一軸Ａ１と平行であって第一軸Ａ１及び第二軸Ａ２とは異なる第三軸Ａ３上に配置されている。また、本実施形態においては、エンジンＥの回転軸である出力軸Ｅｏも第一軸Ａ１上に配置されている。   As shown in FIG. 3, the case 2 accommodates the first rotating electrical machine MG <b> 1, the second rotating electrical machine MG <b> 2, and the output differential gear device DF. The first rotating electrical machine MG1 is disposed on a first axis A1 substantially orthogonal to the front-rear direction. The second rotating electrical machine MG2 overlaps with the first rotating electrical machine MG1 in the axial direction (direction perpendicular to the paper surface in FIG. 3) on the second axis A2 that is parallel to the first axis A1 and different from the first axis A1. Are arranged. Further, the output differential gear device DF is disposed on a third axis A3 that is parallel to the first axis A1 and different from the first axis A1 and the second axis A2. In the present embodiment, the output shaft Eo that is the rotation shaft of the engine E is also disposed on the first shaft A1.

図３に示されるように、第一回転電機ＭＧ１、第二回転電機ＭＧ２、及び出力用差動歯車装置ＤＦは、径方向に互いに隣接して配置され、これらの軸を結ぶ線が鋭角三角形を形成するように配置されている。これにより、第一回転電機ＭＧ１、第二回転電機ＭＧ２、及び出力用差動歯車装置ＤＦを、ケース２の径方向における大型化を抑制しつつケース２内に配置することが可能となっている。なお、鋭角三角形ではなく、直角三角形や鈍角三角形が形成されるように、第一回転電機ＭＧ１、第二回転電機ＭＧ２、及び出力用差動歯車装置ＤＦを配置しても良い。   As shown in FIG. 3, the first rotating electrical machine MG1, the second rotating electrical machine MG2, and the output differential gear device DF are arranged adjacent to each other in the radial direction, and the line connecting these axes forms an acute triangle. It is arranged to form. Accordingly, the first rotating electrical machine MG1, the second rotating electrical machine MG2, and the output differential gear device DF can be disposed in the case 2 while suppressing an increase in size of the case 2 in the radial direction. . The first rotating electrical machine MG1, the second rotating electrical machine MG2, and the output differential gear device DF may be arranged so that a right triangle or an obtuse triangle is formed instead of an acute triangle.

また、図３に示されるように、本実施形態においては、第二軸Ａ２は、第一軸Ａ１よりも後上方側に配置され、第三軸Ａ３は、第一軸Ａ１より後方側であって第二軸Ａ２より下方側に配置されている。なお、本例では、第三軸Ａ３は第一軸Ａ１より下方に配置されているため、第二軸Ａ２と第三軸Ａ３とは、第一軸Ａ１を通る水平面に対して上下方向に反対側に配置されている。そして、ケース２のケース本体部３は、第一回転電機ＭＧ１の外周面及び第二回転電機ＭＧ２の外周面の双方に接する面と略平行に形成された傾斜壁面部６を有している。なお、傾斜壁面部６は、図４によく示されるように、ケース本体部３の周壁の一部により構成されている。   Further, as shown in FIG. 3, in the present embodiment, the second axis A2 is disposed on the rear upper side with respect to the first axis A1, and the third axis A3 is on the rear side with respect to the first axis A1. And arranged below the second axis A2. In this example, since the third axis A3 is disposed below the first axis A1, the second axis A2 and the third axis A3 are vertically opposite to the horizontal plane passing through the first axis A1. Arranged on the side. And the case main-body part 3 of case 2 has the inclined wall surface part 6 formed substantially parallel to the surface which contact | connects both the outer peripheral surface of 1st rotary electric machine MG1, and the outer peripheral surface of 2nd rotary electric machine MG2. In addition, the inclined wall surface part 6 is comprised by a part of surrounding wall of the case main-body part 3, as FIG. 4 shows well.

上記の通り、第二回転電機ＭＧ２が配置される第二軸Ａ２は、第一回転電機ＭＧ１が配置される第一軸Ａ１より後上方側に配置されるとともに、第二回転電機ＭＧ２は第一回転電機ＭＧ１より大径であるため、傾斜壁面部６は、後方側へ向かうに従って上方側へ向かうように傾斜した面となっている。すなわち、傾斜壁面部６は、前方を向く面、すなわち法線ベクトルが前方方向の成分を有する面であり、本例では、当該法線ベクトルは、前向き及び上向きの成分を有している。さらに、傾斜壁面部６は、図３に示されるように、第一軸Ａ１、第二軸Ａ２、及び第三軸Ａ３に略平行に形成されているため、傾斜壁面部６の法線ベクトルは、左右方向の成分を有さず、前向き及び上向きの成分のみを有している。なお、傾斜壁面部６の法線ベクトルが左右方向の成分を有する構成としても良い。また、本実施形態においては、図３に示されるように、傾斜壁面部６の法線ベクトルは、水平方向に対して約４５°だけ上方を向くように形成されている。   As described above, the second axis A2 where the second rotary electric machine MG2 is arranged is arranged on the rear upper side of the first axis A1 where the first rotary electric machine MG1 is arranged, and the second rotary electric machine MG2 is the first axis Since the diameter is larger than that of the rotating electrical machine MG1, the inclined wall surface portion 6 is a surface inclined so as to go upward as it goes to the rear side. That is, the inclined wall surface portion 6 is a front surface, that is, a surface in which a normal vector has a forward component, and in this example, the normal vector has a forward component and an upward component. Furthermore, since the inclined wall surface portion 6 is formed substantially parallel to the first axis A1, the second axis A2, and the third axis A3 as shown in FIG. 3, the normal vector of the inclined wall surface portion 6 is It does not have a component in the left-right direction, but has only a forward and upward component. Note that the normal vector of the inclined wall surface portion 6 may have a horizontal component. In the present embodiment, as shown in FIG. 3, the normal vector of the inclined wall surface portion 6 is formed to face upward by about 45 ° with respect to the horizontal direction.

図５に示されるように、車両用駆動装置１は、車両Ｃの先端部に配置されるラジエータＲの後方に配置されている。よって、車両Ｃの走行時には、ラジエータＲや車両用駆動装置１より前方に存在する空隙等を通過した空気、すなわち、車両Ｃの走行時の走行風５０が、車両用駆動装置１の近傍を前方から後方へ通過する。この時、走行風５０の一部は車両用駆動装置１のケース２の外壁面に接触する。なお、上記の傾斜壁面部６は、法線ベクトルが前方方向の成分を有する面であるため、図３に示されるように、傾斜壁面部６にはケース２のその他の外壁面（例えば、ケース本体部３の後方側の外壁面や、端部カバー部材４や連結カバー部材５の左右方向端部の外壁面）に比べ、走行風５０がより高い割合で接触することになる。さらに、本実施形態では、傾斜壁面部６は、その法線ベクトルが前向きだけでなく上向きの成分を有している面であるため、走行風５０は傾斜壁面部６の近傍を円滑に前方から後方に向かって流れる。なお、車両用駆動装置１を、ラジエータＲの側方等の後方以外に配置する構成としても良い。   As shown in FIG. 5, the vehicle drive device 1 is disposed behind the radiator R disposed at the front end portion of the vehicle C. Therefore, when the vehicle C travels, the air that has passed through the air gap and the like existing in front of the radiator R and the vehicle drive device 1, that is, the travel wind 50 when the vehicle C travels moves forward in the vicinity of the vehicle drive device 1. Pass backwards from. At this time, part of the traveling wind 50 comes into contact with the outer wall surface of the case 2 of the vehicle drive device 1. Note that the inclined wall surface portion 6 is a surface whose normal vector has a forward component, and therefore, as shown in FIG. 3, the inclined wall surface portion 6 includes other outer wall surfaces (for example, the case 2) of the case 2. Compared with the outer wall surface on the rear side of the main body 3 and the outer wall surfaces of the end cover member 4 and the connecting cover member 5 in the left and right direction, the traveling wind 50 contacts at a higher rate. Furthermore, in this embodiment, the inclined wall surface portion 6 is a surface whose normal vector has an upward component as well as a forward vector. Therefore, the traveling wind 50 can smoothly travel from the front in the vicinity of the inclined wall surface portion 6. It flows backward. In addition, it is good also as a structure which arrange | positions the vehicle drive device 1 other than the backs, such as the side of the radiator R. FIG.

３．接続部材の配置構成
上記のように、車両用駆動装置１のケース２には、車両Ｃの走行時に走行風５０がより高い割合で接触する傾斜壁面部６が形成されており、この傾斜壁面部６に第一接続部材２１及び第二接続部材２２が配置されている。第一接続部材２１を介して、ケース２に配置された回転電機ＭＧ１側の電源端子である第一電源端子３１と、ケース２とは分離して配置された制御装置１１に接続されるケース外電源配線４１とが電気的に接続されている。また、第二接続部材２２を介して、ケース２に配置された回転電機ＭＧ２側の電源端子である第二電源端子３２と、ケース２とは分離して配置された制御装置１１に接続されるケース外電源配線４２とが電気的に接続されている。以下、これらの接続部材２１，２２の配置構成について説明する。 3. Arrangement Configuration of Connecting Member As described above, the case 2 of the vehicle drive device 1 is formed with the inclined wall surface portion 6 with which the traveling wind 50 contacts at a higher rate when the vehicle C travels. In FIG. 6, the first connection member 21 and the second connection member 22 are arranged. The first power supply terminal 31 which is the power supply terminal on the rotating electrical machine MG1 side arranged in the case 2 and the control device 11 arranged separately from the case 2 via the first connection member 21 is connected to the outside of the case. The power supply wiring 41 is electrically connected. Further, the second power supply terminal 32 that is a power supply terminal on the rotating electrical machine MG2 side arranged in the case 2 and the case 2 are connected to the control device 11 arranged separately through the second connection member 22. The external case power supply wiring 42 is electrically connected. Hereinafter, the arrangement configuration of the connection members 21 and 22 will be described.

図２に示されるように、ケース２の傾斜壁面部６には回転電機ＭＧ１側の電源端子である第一電源端子３１と、回転電機ＭＧ２側の電源端子である第二電源端子３２とが配置されている。本実施形態においては、第一電源端子３１及び第二電源端子３２を備えて、本発明における電源端子が構成されている。なお、このような電源端子３１，３２の構成は周知であるので詳細な説明は省略するが、例えば図２に示されるように、第一電源端子３１及び第二電源端子３２を銅等の導電性材料で形成された板状体で構成し、当該板状体が樹脂等の絶縁体で形成された略円筒状の部材の中に保持された構成とすることができる。   As shown in FIG. 2, a first power supply terminal 31 that is a power supply terminal on the rotating electrical machine MG1 side and a second power supply terminal 32 that is a power supply terminal on the rotating electrical machine MG2 side are disposed on the inclined wall surface portion 6 of the case 2. Has been. In the present embodiment, the first power supply terminal 31 and the second power supply terminal 32 are provided, and the power supply terminal in the present invention is configured. The configuration of the power supply terminals 31 and 32 is well known and will not be described in detail. For example, as shown in FIG. 2, the first power supply terminal 31 and the second power supply terminal 32 are made of a conductive material such as copper. It is possible to use a plate-like body made of a conductive material, and the plate-like body is held in a substantially cylindrical member formed of an insulator such as a resin.

第一電源端子３１は、ケース２の内部に配置されたケース内電源配線（図示せず）を介して、第一軸Ａ１上に配置された第一回転電機ＭＧ１に電気的に接続されている。第二電源端子３２は、ケース２の内部に配置されたケース内電源配線（図示せず）を介して、第二軸Ａ２上に配置された第二回転電機ＭＧ２に電気的に接続されている。上記のように、本実施形態においては第一回転電機ＭＧ１及び第二回転電機ＭＧ２は三相交流で駆動される回転電機である。そのため、第一回転電機ＭＧ１のＵ相、Ｖ相、Ｗ相のそれぞれのコイルに接続される３個の第一電源端子３１と、第二回転電機ＭＧ２のＵ相、Ｖ相、Ｗ相のそれぞれのコイルに接続される３個の第二電源端子３２とが、傾斜壁面部６に備えられている。そして、図２に示されるように、これらの第一電源端子３１及び第二電源端子３２のそれぞれは、傾斜壁面部６に沿って上下方向に一列に並ぶ状態で配置されている。なお、本例では、第二電源端子３２が、第一電源端子３１に対して後上方側に配置されるとともに、第二回転電機ＭＧ２が、第一回転電機ＭＧ１に対して後上方側に配置されている。よって、第一電源端子３１と第一回転電機ＭＧ１とを接続するケース内電源配線、及び、第二電源端子３２と第二回転電機ＭＧ２とを接続するケース内電源配線の双方の配線長を短くすることができる。なお、第一電源端子３１及び第二電源端子３２のそれぞれが、傾斜壁面部６に沿って左右方向に一列に並ぶ状態で配置される構成や、第一電源端子３１及び第二電源端子３２のそれぞれが、三角形を成すように配置される構成としても良い。   The first power supply terminal 31 is electrically connected to the first rotating electrical machine MG1 arranged on the first axis A1 via the in-case power supply wiring (not shown) arranged inside the case 2. . The second power supply terminal 32 is electrically connected to the second rotating electrical machine MG2 arranged on the second axis A2 via the in-case power supply wiring (not shown) arranged inside the case 2. . As described above, in the present embodiment, the first rotating electrical machine MG1 and the second rotating electrical machine MG2 are rotating electrical machines driven by three-phase alternating current. Therefore, the three first power terminals 31 connected to the U-phase, V-phase, and W-phase coils of the first rotating electrical machine MG1, and the U-phase, V-phase, and W-phase of the second rotating electrical machine MG2, respectively. The inclined wall surface portion 6 is provided with three second power supply terminals 32 connected to the other coil. As shown in FIG. 2, each of the first power supply terminal 31 and the second power supply terminal 32 is arranged in a line in the vertical direction along the inclined wall surface portion 6. In this example, the second power supply terminal 32 is disposed on the rear upper side with respect to the first power supply terminal 31, and the second rotating electrical machine MG2 is disposed on the rear upper side with respect to the first rotating electrical machine MG1. Has been. Therefore, the wiring lengths of both the in-case power supply wiring connecting the first power supply terminal 31 and the first rotating electrical machine MG1 and the in-case power supply wiring connecting the second power supply terminal 32 and the second rotating electrical machine MG2 are shortened. can do. Each of the first power supply terminal 31 and the second power supply terminal 32 is arranged in a state in which the first power supply terminal 31 and the second power supply terminal 32 are arranged in a line in the left-right direction along the inclined wall surface portion 6. It is good also as a structure arrange | positioned so that each may form a triangle.

また、第一接続部材２１及び第二接続部材２２は、図２に示されるように、締結部材が挿通される複数の挿通孔を有する樹脂カバーを備えている。なお、第一接続部材２１及び第二接続部材２２の樹脂カバーは、周囲をカバー等で覆われた空間ではなく、外部に露出した空間に配置される。よって、車両Ｃの走行時の走行風５０が樹脂カバーに高い割合で接触し、第一接続部材２１及び第二接続部材２２が効率良く冷却される。そして、当該樹脂カバーの内部には、図示は省略するが、回転電機ＭＧ１，ＭＧ２側の電源端子３１，３２に嵌合する接続部材側電源端子が備えられている。なお、接続部材側電源端子は、樹脂カバーの内部でケース外電源配線４１，４２と電気的に接続されており、接続部材側電源端子と回転電機ＭＧ１，ＭＧ２側の電源端子３１，３２が嵌合することで、回転電機ＭＧ１，ＭＧ２と制御装置１１とが電気的に接続される。   Moreover, the 1st connection member 21 and the 2nd connection member 22 are provided with the resin cover which has several penetration hole through which a fastening member is penetrated, as FIG. 2 shows. The resin covers of the first connection member 21 and the second connection member 22 are not disposed in a space covered with a cover or the like but in a space exposed to the outside. Therefore, the traveling wind 50 during traveling of the vehicle C contacts the resin cover at a high rate, and the first connecting member 21 and the second connecting member 22 are efficiently cooled. And although illustration is abbreviate | omitted inside the said resin cover, the connection member side power supply terminal fitted to the power supply terminals 31 and 32 by the side of rotary electric machine MG1, MG2 is provided. The connecting member side power terminal is electrically connected to the outside case power wiring 41 and 42 inside the resin cover, and the connecting member side power terminal and the rotating electrical machines MG1 and MG2 side power terminals 31 and 32 are fitted. By combining, the rotary electric machines MG1 and MG2 and the control device 11 are electrically connected.

そして、これらの第一接続部材２１及び第二接続部材２２は、図１、図３及び図４に示されるように、傾斜壁面部６に沿って上下方向に並べて配置されている。なお、図３及び図５に示されるように、傾斜壁面部６は車両Ｃの走行時に走行風５０が通過するように配置されている。ここでは、傾斜壁面部６は車両Ｃの走行時に走行風５０が通過する経路に隣接して配置されている。よって、傾斜壁面部６に配置された第一接続部材２１及び第二接続部材２２には車両Ｃの走行時に走行風５０が接触し、第一接続部材２１及び第二接続部材２２の発熱が抑制される。その際、上記の通り、走行風５０は傾斜壁面部６により高い割合で接触するとともに、傾斜壁面部６の近傍を円滑に前方から後方に向かって流れるため、第一接続部材２１及び第二接続部材２２を効率良く冷却でき、第一接続部材２１及び第二接続部材２２の発熱を抑制することができる。   The first connection member 21 and the second connection member 22 are arranged side by side in the vertical direction along the inclined wall surface portion 6 as shown in FIGS. 1, 3, and 4. 3 and 5, the inclined wall surface portion 6 is disposed so that the traveling wind 50 passes when the vehicle C travels. Here, the inclined wall surface portion 6 is disposed adjacent to a route through which the traveling wind 50 passes when the vehicle C travels. Therefore, the traveling air 50 contacts the first connecting member 21 and the second connecting member 22 arranged on the inclined wall surface portion 6 when the vehicle C travels, and the heat generation of the first connecting member 21 and the second connecting member 22 is suppressed. Is done. At that time, as described above, the traveling wind 50 contacts the inclined wall surface portion 6 at a high rate, and smoothly flows from the front to the rear in the vicinity of the inclined wall surface portion 6. The member 22 can be efficiently cooled, and heat generation of the first connection member 21 and the second connection member 22 can be suppressed.

〔その他の実施形態〕
（１）上記の実施形態においては、傾斜壁面部６は、その法線ベクトルが水平方向に対して約４５°だけ上方を向くように形成されている場合を例として説明した。しかし、本発明の実施形態はこれに限定されるものではない。すなわち、傾斜壁面部６の法線ベクトルの上向きの度合は、第一回転電機ＭＧ１及び第二回転電機ＭＧ２の配置位置や外径に依存するものであり、第一回転電機ＭＧ１及び第二回転電機ＭＧ２の配置位置や外径を変えることで、傾斜壁面部６の法線ベクトルの上向きの度合は任意に設定できる。例えば、０°以上９０°未満の範囲から選択した所定の角度だけ法線ベクトルが上方を向くように傾斜壁面部６を形成すると好適である。なお、上記の角度として０°を選択した場合は、傾斜壁面部６の法線ベクトルは上向きの成分を有さないことになる。また、上記の所定の角度は傾斜壁面部６の近傍における走行風５０の流れを円滑にして接続部材２１，２２の冷却効率を良好にするという観点から選択すれば良く、例えば３０°から６０°の範囲から選択すると好適である。 [Other Embodiments]
(1) In the above embodiment, the inclined wall surface portion 6 has been described as an example in which the normal vector is formed so as to face upward by about 45 ° with respect to the horizontal direction. However, the embodiment of the present invention is not limited to this. That is, the upward degree of the normal vector of the inclined wall surface portion 6 depends on the arrangement positions and outer diameters of the first rotating electrical machine MG1 and the second rotating electrical machine MG2, and the first rotating electrical machine MG1 and the second rotating electrical machine. The upward degree of the normal vector of the inclined wall surface portion 6 can be arbitrarily set by changing the arrangement position and outer diameter of the MG2. For example, it is preferable to form the inclined wall surface portion 6 so that the normal vector is directed upward by a predetermined angle selected from the range of 0 ° or more and less than 90 °. If 0 ° is selected as the angle, the normal vector of the inclined wall surface portion 6 does not have an upward component. The predetermined angle may be selected from the viewpoint of smoothing the flow of the traveling wind 50 in the vicinity of the inclined wall surface portion 6 and improving the cooling efficiency of the connection members 21 and 22, for example, 30 ° to 60 °. It is preferable to select from this range.

（２）上記の実施形態においては、車両用駆動装置１が回転電機として第一回転電機ＭＧ１及び第二回転電機ＭＧ２の２つを備えるとともに、第二回転電機ＭＧ２が配置される第二軸Ａ２が第一回転電機ＭＧ１が配置される第一軸Ａ１よりも車両後上方側に配置され、傾斜壁面部６が、第一回転電機ＭＧ１の外周面及び第二回転電機ＭＧ２の外周面の双方に接する面と略平行であって車両後方側へ向かうに従って車両上方側へ向かうように傾斜した面に沿って形成されている場合を例として説明した。しかし、本発明の実施形態はこれに限定されるものではない。すなわち、第二回転電機ＭＧ２が配置される第二軸Ａ２が第一回転電機ＭＧ１が配置される第一軸Ａ１よりも車両後下方側に配置され、傾斜壁面部６が、第一回転電機ＭＧ１の外周面及び第二回転電機ＭＧ２の外周面の双方に接する面と略平行であって車両後方側へ向かうに従って車両下方側へ向かうように傾斜した面に沿って形成されている構成とすることも本発明の好適な実施形態の一つである。この場合、傾斜壁面部６の法線ベクトルは、前向き及び下向きの成分を有することになる。また、傾斜壁面部６が、第一回転電機ＭＧ１の外周面及び第二回転電機ＭＧ２の外周面の双方に接する面と略平行ではない面に沿って形成されている構成としても良い。 (2) In the above embodiment, the vehicle drive device 1 includes the first rotating electrical machine MG1 and the second rotating electrical machine MG2 as rotating electrical machines, and the second axis A2 on which the second rotating electrical machine MG2 is disposed. Is disposed on the vehicle rear upper side with respect to the first axis A1 where the first rotating electrical machine MG1 is disposed, and the inclined wall surface portion 6 is provided on both the outer peripheral surface of the first rotating electrical machine MG1 and the outer peripheral surface of the second rotating electrical machine MG2. The case has been described as an example in which it is formed along a surface that is substantially parallel to the contacting surface and that is inclined so as to go to the vehicle upper side as it goes to the vehicle rear side. However, the embodiment of the present invention is not limited to this. That is, the second axis A2 on which the second rotating electrical machine MG2 is disposed is disposed on the vehicle rear lower side with respect to the first axis A1 on which the first rotating electrical machine MG1 is disposed, and the inclined wall surface portion 6 is disposed on the first rotating electrical machine MG1. And a surface that is substantially parallel to a surface in contact with both the outer peripheral surface of the motor and the outer peripheral surface of the second rotating electrical machine MG2, and is formed along a surface that is inclined toward the vehicle lower side toward the vehicle rear side. Is also one of the preferred embodiments of the present invention. In this case, the normal vector of the inclined wall surface portion 6 has forward and downward components. In addition, the inclined wall surface portion 6 may be formed along a surface that is not substantially parallel to a surface that contacts both the outer peripheral surface of the first rotating electrical machine MG1 and the outer peripheral surface of the second rotating electrical machine MG2.

（３）上記の実施形態においては、車両用駆動装置１が接続部材として第一接続部材２１及び第二接続部材２２の２つの接続部材を備え、第一接続部材２１と第二接続部材２２とが、傾斜壁面部６に沿って車両上下方向に並べて配置されている場合を例として説明した。しかし、本発明の実施形態はこれに限定されるものではない。すなわち、第一接続部材２１と第二接続部材２２とが、傾斜壁面部６に沿って車両左右方向に並べて配置される構成とすることも本発明の好適な実施形態の一つである。また、第一接続部材２１と第二接続部材２２とを一体的に構成し、接続部材が一つのみ備えられる構成としても好適である。 (3) In said embodiment, the vehicle drive device 1 is provided with two connection members, the 1st connection member 21 and the 2nd connection member 22, as a connection member, and the 1st connection member 21, the 2nd connection member 22, However, the case where it arrange | positions along with the inclined wall surface part 6 in the vehicle up-down direction was demonstrated as an example. However, the embodiment of the present invention is not limited to this. That is, it is also one preferred embodiment of the present invention that the first connection member 21 and the second connection member 22 are arranged side by side in the vehicle left-right direction along the inclined wall surface portion 6. Moreover, the 1st connection member 21 and the 2nd connection member 22 are comprised integrally, and it is suitable also as a structure provided with only one connection member.

（４）上記の実施形態においては、ケース２が、異形筒状のケース本体部３と、端部カバー部材４と、連結カバー部材５とを備えて構成されており、傾斜壁面部６が、ケース本体部３の周壁の一部により構成されている場合を例として説明した。しかし、本発明の実施形態はこれに限定されるものではない。すなわち、傾斜壁面部６が、端部カバー部材４や連結カバー部材５に形成される構成とすることも本発明の好適な実施形態の一つである。また、ケース２の構成や形状は上記のものに限られず、法線ベクトルが車両前方方向の成分を有する傾斜壁面部６が形成されるのであれば、ケース２の構成や形状は任意に変更可能である。 (4) In the above embodiment, the case 2 is configured to include the case body portion 3 having the irregular cylindrical shape, the end cover member 4 and the connection cover member 5, and the inclined wall surface portion 6 is The case where it was comprised by a part of peripheral wall of the case main-body part 3 was demonstrated as an example. However, the embodiment of the present invention is not limited to this. That is, it is also one preferred embodiment of the present invention that the inclined wall surface portion 6 is formed on the end cover member 4 or the connecting cover member 5. Further, the configuration and shape of the case 2 are not limited to those described above, and the configuration and shape of the case 2 can be arbitrarily changed as long as the inclined wall surface portion 6 whose normal vector has a component in the vehicle front direction is formed. It is.

（５）上記の実施形態においては、車両用駆動装置１が、出力用差動歯車装置ＤＦをケース２の内部に備える場合を例として説明した。しかし、本発明の実施形態はこれに限定されるものではない。すなわち、車両用駆動装置１が、出力用差動歯車装置ＤＦをケース２とは別のケースの内部に備える構成とすることも本発明の好適な実施形態の一つである。また、出力用差動歯車装置ＤＦ以外のギヤ機構、伝動軸、伝動ベルト、チェーン等の駆動伝達機構を備えて、駆動力源からの駆動力を出力する出力機構を構成とすることも本発明の好適な実施形態の一つである。 (5) In the above embodiment, the case where the vehicle drive device 1 includes the output differential gear device DF inside the case 2 has been described as an example. However, the embodiment of the present invention is not limited to this. That is, it is also a preferred embodiment of the present invention that the vehicle drive device 1 includes the output differential gear device DF inside a case other than the case 2. In addition, the present invention may be configured to include a drive transmission mechanism such as a gear mechanism other than the output differential gear device DF, a transmission shaft, a transmission belt, and a chain, and to output a driving force from a driving force source. This is one of the preferred embodiments.

（６）上記の実施形態においては、車両用駆動装置１が第一回転電機ＭＧ１及び第二回転電機ＭＧ２の２つの回転電機を備え、第二回転電機ＭＧ２が第一回転電機ＭＧ１より大径である場合を例として説明した。しかし、本発明の実施形態はこれに限定されるものではない。すなわち、第二回転電機ＭＧ２が第一回転電機ＭＧ１と同径又はそれより小径である構成としても好適である。また、車両用駆動装置１が、回転電機を一つだけ備え、或いは回転電機を３つ以上備える構成とすることも本発明の好適な実施形態の一つである。 (6) In the above embodiment, the vehicle drive device 1 includes two rotating electric machines, the first rotating electric machine MG1 and the second rotating electric machine MG2, and the second rotating electric machine MG2 has a larger diameter than the first rotating electric machine MG1. A case has been described as an example. However, the embodiment of the present invention is not limited to this. That is, the second rotating electrical machine MG2 is also suitable as a configuration having the same diameter as or smaller than the first rotating electrical machine MG1. It is also one of the preferred embodiments of the present invention that the vehicle drive device 1 includes only one rotating electric machine or three or more rotating electric machines.

（７）上記の実施形態においては、本発明に係る車両用駆動装置１を、ＦＦ（Front Engine Front Drive）車両に適用する場合を例として説明した。しかし、本発明の実施形態はこれに限定されるものではない。すなわち、本発明は、車両Ｃに横置きされるエンジンＥに対して車両Ｃの幅方向に隣接して配置され、エンジンＥの出力軸Ｅｏの軸方向に連結される駆動装置に採用可能な構成として適しており、例えば、本発明に係る車両用駆動装置１を、ＲＲ（Rear Engine Rear Drive）車両やＭＲ（Midship Engine Rear Drive）車両等に適用しても好適である。 (7) In the above embodiment, the case where the vehicle drive device 1 according to the present invention is applied to an FF (Front Engine Front Drive) vehicle has been described as an example. However, the embodiment of the present invention is not limited to this. That is, the present invention can be employed in a drive device that is disposed adjacent to the engine E that is placed horizontally on the vehicle C in the width direction of the vehicle C and that is coupled in the axial direction of the output shaft Eo of the engine E. For example, the vehicle drive device 1 according to the present invention may be applied to an RR (Rear Engine Rear Drive) vehicle, an MR (Midship Engine Rear Drive) vehicle, or the like.

（８）上記の実施形態においては、車両Ｃが駆動力源としてエンジンＥを備えるとともに当該エンジンＥの回転軸Ｅｏが第一軸Ａ１上に配置され、車両用駆動装置１がエンジンＥに駆動連結されるエンジン連結部材Ｉを備える場合を例として説明した。しかし、本発明の実施形態はこれに限定されるものではない。すなわち、エンジンＥの回転軸Ｅｏが、第一軸Ａ１上に配置されない構成とすることも本発明の好適な実施形態の一つである。また、車両Ｃが駆動力源としてのエンジンＥを備えない電動車両であり、車両用駆動装置１がエンジンＥに駆動連結されるエンジン連結部材Ｉを備えない構成とすることも本発明の好適な実施形態の一つである。 (8) In the above embodiment, the vehicle C includes the engine E as a driving force source, the rotation shaft Eo of the engine E is disposed on the first axis A1, and the vehicle drive device 1 is drivingly connected to the engine E. The case where the engine connecting member I is provided has been described as an example. However, the embodiment of the present invention is not limited to this. That is, it is also a preferred embodiment of the present invention that the rotational axis Eo of the engine E is not arranged on the first axis A1. It is also preferable that the vehicle C is an electric vehicle that does not include the engine E as a driving force source, and the vehicle drive device 1 does not include the engine connecting member I that is drivingly connected to the engine E. This is one of the embodiments.

本発明は、回転電機の制御を行う制御装置が、回転電機を収容するケースから分離して配置されている車両用駆動装置に好適に利用することができる。   INDUSTRIAL APPLICABILITY The present invention can be suitably used for a vehicle drive device in which a control device that controls a rotating electrical machine is disposed separately from a case that houses the rotating electrical machine.

Ａ１：第一軸
Ａ２：第二軸
Ａ３：第三軸
Ｃ：車両
ＤＦ：出力用差動歯車装置
Ｅ：エンジン
Ｉ：エンジン連結部材
ＭＧ１：第一回転電機
ＭＧ２：第二回転電機
１：車両用駆動装置
２：ケース
３：ケース本体部
４：端部カバー部材
５：連結カバー部材
６：傾斜壁面部
１１：制御装置
２１：第一接続部材
２２：第二接続部材
３１：第一電源端子（電源端子）
３２：第二電源端子（電源端子）
４１：第一ケース外電源配線（ケース外電源配線）
４２：第二ケース外電源配線（ケース外電源配線）
５０：走行風 A1: First axis A2: Second axis A3: Third axis C: Vehicle DF: Output differential gear device E: Engine I: Engine connecting member MG1: First rotating electrical machine MG2: Second rotating electrical machine 1: For vehicle Drive device 2: Case 3: Case body portion 4: End cover member 5: Connection cover member 6: Inclined wall surface portion 11: Control device 21: First connection member 22: Second connection member 31: First power supply terminal (power supply Terminal)
32: Second power supply terminal (power supply terminal)
41: Power supply wiring outside the first case (power supply wiring outside the case)
42: Power supply wiring outside the second case (power supply wiring outside the case)
50: Running wind

Claims (6)

車両の駆動力源としての回転電機と、当該回転電機を収容するケースと、を備えた車両用駆動装置であって、
前記ケースに配置された前記回転電機側の電源端子と、前記ケースとは分離して配置され、前記回転電機に電力を供給する制御装置に接続されるケース外電源配線とを電気的に接続する接続部材を備え、
前記ケースは、その外壁面に、法線ベクトルが車両前方方向の成分を有する傾斜壁面部を備え、
前記接続部材は、前記傾斜壁面部に配置されている車両用駆動装置。 A vehicle drive device comprising: a rotating electrical machine as a driving force source for a vehicle; and a case for housing the rotating electrical machine,
The power terminal on the rotating electrical machine side disposed in the case is electrically connected to a power supply wiring outside the case that is disposed separately from the case and connected to a control device that supplies power to the rotating electrical machine. A connecting member,
The case includes, on its outer wall surface, an inclined wall surface portion having a normal vector component in the vehicle front direction,
The connection member is a vehicle drive device disposed on the inclined wall surface portion. 前記傾斜壁面部は、前記車両の走行時に走行風が通過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。   2. The vehicle drive device according to claim 1, wherein the inclined wall surface portion is disposed so that traveling wind passes when the vehicle travels. 前記ケース内に、前記回転電機として第一回転電機及び第二回転電機の２つを備えるとともに、前記車両の駆動力源からの駆動力を２つの車輪に分配する出力用差動歯車装置を更に備え、
前記第一回転電機は、車両前後方向に略直交する第一軸上に配置され、
前記第二回転電機は、前記第一軸と平行であって前記第一軸とは異なる第二軸上に、前記第一回転電機と軸方向に重複して配置され、
前記出力用差動歯車装置は、前記第一軸と平行であって前記第一軸及び前記第二軸とは異なる第三軸上に配置され、
前記第二軸は、前記第一軸よりも車両後上方側に配置され、
前記第三軸は、前記第一軸より車両後方側であって前記第二軸より車両下方側に配置され、
前記傾斜壁面部は、前記第一回転電機の外周面及び前記第二回転電機の外周面の双方に接する面と略平行であって車両後方側へ向かうに従って車両上方側へ向かうように傾斜した面に沿って形成されている請求項１又は２に記載の車両用駆動装置。 An output differential gear device that includes the first rotating electric machine and the second rotating electric machine as the rotating electric machine in the case and that distributes the driving force from the driving force source of the vehicle to two wheels. Prepared,
The first rotating electrical machine is disposed on a first axis substantially orthogonal to the vehicle longitudinal direction,
The second rotating electrical machine is disposed on a second axis that is parallel to the first axis and different from the first axis, overlapping the first rotating electrical machine in the axial direction,
The output differential gear device is disposed on a third axis that is parallel to the first axis and different from the first axis and the second axis,
The second shaft is disposed on the rear upper side of the first shaft,
The third axis is arranged on the vehicle rear side from the first axis and on the vehicle lower side from the second axis,
The inclined wall surface is substantially parallel to a surface in contact with both the outer peripheral surface of the first rotating electrical machine and the outer peripheral surface of the second rotating electrical machine, and is a surface inclined so as to go toward the vehicle upper side toward the vehicle rear side. The vehicle drive device according to claim 1, wherein the vehicle drive device is formed along the line. 前記接続部材として、前記第一回転電機側の電源端子と前記ケース外電源配線とを電気的に接続する第一接続部材と、前記第二回転電機側の電源端子と前記ケース外電源配線とを電気的に接続する第二接続部材と、を備え、
前記第一接続部材と前記第二接続部材とが、前記傾斜壁面部に沿って車両上下方向に並べて配置されている請求項３に記載の車両用駆動装置。 As the connection member, a first connection member for electrically connecting the power terminal on the first rotating electrical machine side and the power supply wiring outside the case, and a power supply terminal on the second rotating electrical machine side and the power supply wiring outside the case A second connecting member for electrical connection,
The vehicle drive device according to claim 3, wherein the first connection member and the second connection member are arranged side by side in the vehicle vertical direction along the inclined wall surface portion. 車両の駆動力源としてのエンジンに駆動連結されるエンジン連結部材を更に備え、当該エンジンの回転軸が前記第一軸上に配置されている請求項３又は４に記載の車両用駆動装置。   5. The vehicle drive device according to claim 3, further comprising an engine coupling member that is drivingly coupled to an engine as a driving force source of the vehicle, wherein the rotation shaft of the engine is disposed on the first shaft. 前記ケースは、前記第一軸に略平行な軸を有して前記第一回転電機及び前記第二回転電機を主に収容する異形筒状のケース本体部と、当該ケース本体部の軸方向一方側の端部を閉塞する端部カバー部材と、前記ケース本体部の軸方向他方側の端部を閉塞するとともに前記ケース本体部と前記エンジンとを連結する連結カバー部材と、を備え、
前記傾斜壁面部は、前記ケース本体部の周壁の一部により構成されている請求項５に記載の車両用駆動装置。 The case includes a deformed cylindrical case main body having an axis substantially parallel to the first axis and mainly housing the first rotating electric machine and the second rotating electric machine, and one axial direction of the case main body. An end cover member that closes the end on the side, and a connecting cover member that closes the end on the other axial side of the case body and connects the case body and the engine,
The vehicle drive device according to claim 5, wherein the inclined wall surface portion is configured by a part of a peripheral wall of the case main body portion.
JP2009046767A 2009-02-27 2009-02-27 Vehicle driving device Pending JP2010206869A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016540682A (en) * 2013-11-26 2016-12-28 シェフラー テクノロジーズ アー・ゲー ウント コー． カー・ゲーＳｃｈａｅｆｆｌｅｒ Ｔｅｃｈｎｏｌｏｇｉｅｓ ＡＧ ＆ Ｃｏ． ＫＧ Power electronics module and hybrid module with electrical signal and / or clutch actuator connection
US10591027B2 (en) 2015-03-31 2020-03-17 Schaeffler Technologies AG & Co. KG Hydraulic traction mechanism tensioner including a pressure regulator
JPWO2019082258A1 (en) * 2017-10-24 2020-07-02 日産自動車株式会社 Power transmission device for four-wheel drive vehicle
CN113014027A (en) * 2019-12-18 2021-06-22 本田技研工业株式会社 Rotating electric machine unit
CN113472146A (en) * 2020-03-31 2021-10-01 本田技研工业株式会社 Rotating electric machine drive unit
JP7346144B2 (en) 2019-08-01 2023-09-19 日野自動車株式会社 How to design powertrain unit and mounting position

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016540682A (en) * 2013-11-26 2016-12-28 シェフラー テクノロジーズ アー・ゲー ウント コー． カー・ゲーＳｃｈａｅｆｆｌｅｒ Ｔｅｃｈｎｏｌｏｇｉｅｓ ＡＧ ＆ Ｃｏ． ＫＧ Power electronics module and hybrid module with electrical signal and / or clutch actuator connection
US10759365B2 (en) 2013-11-26 2020-09-01 Schaeffler Technologies AG & Co. KG Power electronics module and hybrid module with an electrical signal and/or clutch actuator connection
US10591027B2 (en) 2015-03-31 2020-03-17 Schaeffler Technologies AG & Co. KG Hydraulic traction mechanism tensioner including a pressure regulator
JPWO2019082258A1 (en) * 2017-10-24 2020-07-02 日産自動車株式会社 Power transmission device for four-wheel drive vehicle
JP7346144B2 (en) 2019-08-01 2023-09-19 日野自動車株式会社 How to design powertrain unit and mounting position
CN113014027A (en) * 2019-12-18 2021-06-22 本田技研工业株式会社 Rotating electric machine unit
JP2021097533A (en) * 2019-12-18 2021-06-24 本田技研工業株式会社 Rotary electric machine unit
CN113472146A (en) * 2020-03-31 2021-10-01 本田技研工业株式会社 Rotating electric machine drive unit

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