JPWO2019175022A5 - - Google Patents

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JPWO2019175022A5
JPWO2019175022A5 JP2020547047A JP2020547047A JPWO2019175022A5 JP WO2019175022 A5 JPWO2019175022 A5 JP WO2019175022A5 JP 2020547047 A JP2020547047 A JP 2020547047A JP 2020547047 A JP2020547047 A JP 2020547047A JP WO2019175022 A5 JPWO2019175022 A5 JP WO2019175022A5
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shaft
drive system
bearing
train
gear stage
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JP2021517533A (en
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このように、3つの接続軸同士を互いの内側に取り付けるという観点からみると、構造上の構成では僅かな違いしかない。これは、軸受51,54の構成に主に関係したものである。
以下、本発明に含まれる態様を記す。
〔態様1〕-変速機ハウジング(25)と、
-入力軸(1)と、
-出力軸(2)と、
-前記入力軸(1)および前記出力軸(2)を第1のモータ(11)の第1のロータ軸(3)および第2のモータ(12)の第2のロータ軸(4)に接続する、多段合成変速機(15)と、
-2つの前記モータ(11,12)が、連続可変作動機構を形成するように接続されている、出力制御装置(8)と、
-前記2つのモータ(11,12)が接続されたエネルギー蓄積装置(9)と、
を備え、前記多段合成変速機(15)が、サンギア(17)、リングギア(18)、および複数のプラネットギア(20)を具備したプラネットキャリア(19)を有する遊星歯車段(16)を含む、駆動システム(10)において、
-前記入力軸(1)、前記出力軸(2)、および第2のロータ軸(4)を有する前記第2のモータ(12)が、第1の軸トレーン(21)にて同軸に配置されており、
-前記サンギア(17)、前記リングギア(18)および前記プラネットキャリア(19)を含む前記多段合成変速機(15)が、前記第1の軸トレーン(21)と平行に設けられた第2の軸トレーン(22)にて配置された三軸遊星歯車段のみとして構成されており、
-第1のロータ軸(3)を有する前記第1のモータ(11)が、前記第1の軸トレーン(21)および前記第2の軸とレーン(22)と平行に位置した第3の軸トレーン(23)に配置されている、ことを特徴とする、駆動システム(10)。
〔態様2〕態様1に記載の駆動システム(10)において、
-前記第1の軸トレーン(21)における前記入力軸(1)が、第1の平歯車段(31)を介して、前記第2の軸トレーン(22)における第1の接続軸(5)に接続されており、
-前記第1の軸トレーン(21)における前記出力軸(2)が、第2の平歯車段(32)を介して、前記第2の軸トレーン(22)における第2の接続軸(6)に接続されており、
-前記第1の軸トレーン(21)における前記第2のモータ(12)の前記第2のロータ軸(4)が、第3の平歯車段(33)を介して、前記第2の軸トレーン(22)における第3の接続軸(7)に接続されていて、当該第3の接続軸(7)が、前記サンギア(17)に連結しており、
-前記第3の軸トレーン(23)における前記第1のモータ(11)の前記第1のロータ軸(3)が、第4の平歯車段(34)を介して、前記第2の軸トレーン(22)における前記リングギア(18)に接続されている、
ことを特徴とする、駆動システム(10)。
〔態様3〕態様1または2に記載の駆動システム(10)において、前記第2の軸トレーン(22)にて、前記第1の接続軸(5)が前記プラネットキャリア(19)に連結していて且つ前記第2の接続軸(6)が前記遊星歯車段(16)の前記リングギア(18)に連結していることを特徴とする、駆動システム(10)。
〔態様4〕態様1または2に記載の駆動システム(10)において、前記第2の軸トレーン(22)にて、前記第1の接続軸(5)が前記リングギア(18)に連結していて且つ前記第2の接続軸(6)が前記遊星歯車段(16)の前記プラネットキャリア(19)に連結していることを特徴とする、駆動システム(10)。
〔態様5〕態様1から4のいずれか一態様に記載の駆動システム(10)において、
-前記第2の平歯車段(32)が、第1の配置平面(35)に位置しており、
-前記遊星歯車段(16)および前記第4の平歯車段(34)が、前記出力軸(2)のうちの前記変速機ハウジング(25)から突出した出力部から当該変速機ハウジング(25)内へと向いた軸方向(30)にずれて前記第1の配置平面(35)と平行に位置した、第2の配置平面(36)に位置しており、
-前記第1の平歯車段(31)が、前記第2の配置平面(36)に対して同じく前記軸方向(30)にずれて位置した第3の配置平面(37)に位置しており、
-前記第3の平歯車段(33)が、前記第3の配置平面(37)に対して同じく前記軸方向(30)にずれて位置した第4の配置平面(38)に位置しており、
-前記2つのモータ(11,12)が、前記第4の配置平面(38)に対して同じく前記軸方向(30)にずれて位置した第5の配置平面(39)に位置している、
ことを特徴とする、駆動システム(10)。
〔態様6〕態様1から5のいずれか一態様に記載の駆動システム(10)において、前記第4の平歯車段(34)のうちの前記第2の軸トレーン(22)における歯車が、前記三軸遊星歯車段(16)の前記リングギア(18)よりも大きいピッチ円半径を有することを特徴とする、駆動システム(10)。
〔態様7〕態様1から6のいずれか一態様に記載の駆動システム(10)において、前記第1の平歯車段(31)のうちの前記第1の接続軸(5)上の歯車が、前記第3の接続軸(7)の前記サンギア(17)よりも大きいピッチ円半径を有することを特徴とする、駆動システム(10)。
〔態様8〕態様1から7のいずれか一態様に記載の駆動システム(10)において、前記変速機ハウジング(25)が、中央ウェブ(27)を具備したメインハウジング(26)、当該メインハウジング(26)に連結したモータ・カバリング(28)、および当該メインハウジング(26)に連結した変速機カバリング(29)を有することを特徴とする、駆動システム(10)。
〔態様9〕態様5に従属するときの態様8に記載の駆動システム(10)において、前記モータ・カバリング(28)が、前記変速機ハウジング(25)のうちの前記第5の配置平面(39)側に設けられており、前記変速機カバリング(29)が、前記変速機ハウジング(25)のうちの前記出力軸(2)が当該変速機ハウジング(25)から突出する前記第1の配置平面(35)側に設けられていることを特徴とする、駆動システム(10)。
〔態様10〕態様8または9に記載の駆動システム(10)において、
-前記入力軸(1)が、第1の軸受(41)で前記出力軸(2)に、第2の軸受(42)で前記モータ・カバリング(28)に支持されており、
-前記入力軸(1)が、前記変速機ハウジング(25)の両側から突出しており、
-前記出力軸(2)が、第3の軸受(43)で前記変速機カバリング(29)に、第4の軸受(44)で前記入力軸(1)に支持されている、
ことを特徴とする、駆動システム(10)。
〔態様11〕態様8から10のいずれか一態様に記載の駆動システム(10)において、前記第1のロータ軸(3)が、第5の軸受(45)で前記変速機カバリング(29)に、第6の軸受(46)で前記中央ウェブ又は前記モータ・カバリング(28)に支持されていることを特徴とする、駆動システム(10)。
〔態様12〕態様8から11のいずれか一態様に記載の駆動システム(10)において、前記第2のロータ軸(4)が、第7の軸受(47)で前記駆動軸(1)又は前記中央ウェブ(27)に、第8の軸受(48)で前記入力軸(1)又は前記モータ・カバリング(28)に取り付けられていることを特徴とする、駆動システム(10)。
〔態様13〕態様2に記載され、かつ、態様8から12のいずれか一態様に記載の駆動システム(10)において、
-前記第2の軸トレーン(22)における前記第2の接続軸(6)が、第9の軸受(49)で前記変速機カバリング(29)に、第10の軸受(50)で前記中央ウェブ(27)又は前記モータ・カバリング(28)に取り付けられており、
-前記第3の接続軸(7)が、第11の軸受(51)で前記第2の接続軸(6)に、第12の軸受(52)で前記中央ウェブ(27)に支持されており、
-前記第1の接続軸(5)が、第13の軸受(53)で前記第3の接続軸(7)に、第14の軸受(54)で前記第2の接続軸(6)に支持されており、
-第15の軸受(55)が、前記第3の接続軸(7)と前記中央ウェブ(27)との間で軸方向力を伝達し、
-第16の軸受(56)が、前記第1の接続軸(5)と前記第3の接続軸(7)との間で軸方向力を伝達する、
ことを特徴とする、駆動システム(10)。
態様14〕態様9または態様9に従属したときの態様10から13のいずれか一態様に記載の駆動システム(10)において、前記第1の軸受(41)と前記第2の軸受(44)との間には、前記入力軸(1)が前記出力軸(2)よりも速く回転しないように防ぐフリーホイール(40)が当該入力軸(1)-当該出力軸(2)間で配置されていることを特徴とする、駆動システム(10)。
〔態様15〕態様1から14のいずれか一態様に記載の駆動システム(10)において、角度方向位置及び回転速度を測定するセンサ及びエンコーダホイールを含む第1のレゾルバ(57)が前記第1のロータ軸(3)に設置されており、かつ/あるいは、角度方向位置及び回転速度を測定するセンサ及びエンコーダホイールを含む第2のレゾルバ(58)が前記第2のロータ軸(4)に設置されており、かつ/あるいは、回転速度センサ(59)が前記入力軸に設置されており、かつ/あるいは、加速度センサ及び/又は傾斜センサ(24)が前記変速機ハウジング(25)に設置されていることを特徴とする、駆動システム(10)。
〔態様16〕態様1から15のいずれか一態様に記載の駆動システムを備える電動補助自転車。
In this way, from the viewpoint of mounting the three connecting shafts inside each other, there is only a slight difference in the structural configuration. This is mainly related to the configuration of the bearings 51 and 54.
Hereinafter, aspects included in the present invention will be described.
[Aspect 1] -Transmission housing (25) and
-Input axis (1) and
-Output shaft (2) and
-The input shaft (1) and the output shaft (2) are connected to the first rotor shaft (3) of the first motor (11) and the second rotor shaft (4) of the second motor (12). Multi-stage synthetic transmission (15) and
-The output control device (8), to which the two motors (11, 12) are connected so as to form a continuously variable actuating mechanism, and
-The energy storage device (9) to which the two motors (11, 12) are connected and
The multi-speed synthetic transmission (15) includes a planetary gear stage (16) having a sun gear (17), a ring gear (18), and a planet carrier (19) including a plurality of planet gears (20). , In the drive system (10)
-The second motor (12) having the input shaft (1), the output shaft (2), and the second rotor shaft (4) is coaxially arranged on the first shaft train (21). And
-The second multi-speed synthetic transmission (15) including the sun gear (17), the ring gear (18) and the planet carrier (19) is provided in parallel with the first shaft train (21). It is configured only as a triaxial planetary gear stage arranged on the axial train (22).
-A third shaft in which the first motor (11) having the first rotor shaft (3) is located parallel to the first shaft train (21) and the second shaft and lane (22). A drive system (10), characterized in that it is located in a train (23).
[Aspect 2] In the drive system (10) according to the first aspect,
-The input shaft (1) in the first shaft train (21) is connected to the first connecting shaft (5) in the second shaft train (22) via the first spur gear stage (31). Is connected to
-The output shaft (2) in the first shaft train (21) is connected to the second connecting shaft (6) in the second shaft train (22) via the second spur gear stage (32). Is connected to
-The second rotor shaft (4) of the second motor (12) in the first shaft train (21) passes through the third spur gear stage (33) to the second shaft train. It is connected to the third connecting shaft (7) in (22), and the third connecting shaft (7) is connected to the sun gear (17).
-The first rotor shaft (3) of the first motor (11) in the third shaft train (23) passes through the fourth spur gear stage (34) to the second shaft train. (22), which is connected to the ring gear (18).
The drive system (10), characterized in that.
[Aspect 3] In the drive system (10) according to the aspect 1 or 2, the first connecting shaft (5) is connected to the planet carrier (19) in the second shaft train (22). The drive system (10) is characterized in that the second connecting shaft (6) is connected to the ring gear (18) of the planetary gear stage (16).
[Aspect 4] In the drive system (10) according to the aspect 1 or 2, the first connecting shaft (5) is connected to the ring gear (18) in the second shaft train (22). The drive system (10) is characterized in that the second connecting shaft (6) is connected to the planet carrier (19) of the planetary gear stage (16).
[Aspect 5] In the drive system (10) according to any one of aspects 1 to 4.
-The second spur gear stage (32) is located on the first arrangement plane (35).
-The transmission housing (25) from the output portion of the planetary gear stage (16) and the fourth spur gear stage (34) protruding from the transmission housing (25) of the output shaft (2). It is located on the second placement plane (36), which is offset inward in the axial direction (30) and is located parallel to the first placement plane (35).
-The first spur gear stage (31) is located in the third arrangement plane (37) which is also displaced in the axial direction (30) with respect to the second arrangement plane (36). ,
-The third spur gear stage (33) is located on the fourth arrangement plane (38), which is also displaced in the axial direction (30) with respect to the third arrangement plane (37). ,
-The two motors (11, 12) are located on the fifth placement plane (39), which is also offset in the axial direction (30) with respect to the fourth placement plane (38).
The drive system (10), characterized in that.
[Aspect 6] In the drive system (10) according to any one of aspects 1 to 5, the gear in the second shaft train (22) of the fourth spur gear stage (34) is the gear. A drive system (10) characterized by having a larger pitch circular radius than the ring gear (18) of the triaxial planetary gear stage (16).
[Aspect 7] In the drive system (10) according to any one of aspects 1 to 6, the gear on the first connecting shaft (5) of the first spur gear stage (31) is A drive system (10) characterized by having a pitch circular radius larger than that of the sun gear (17) of the third connecting shaft (7).
[Aspect 8] In the drive system (10) according to any one of aspects 1 to 7, the transmission housing (25) is a main housing (26) provided with a central web (27), the main housing (aspect). A drive system (10) comprising a motor covering (28) coupled to 26) and a transmission covering (29) coupled to the main housing (26).
[Aspect 9] In the drive system (10) according to the eighth aspect when it is subordinate to the fifth aspect, the motor covering (28) is the fifth arrangement plane (39) of the transmission housing (25). ) Side, the transmission covering (29) is provided, and the output shaft (2) of the transmission housing (25) protrudes from the transmission housing (25). A drive system (10), characterized in that it is provided on the (35) side.
[Aspect 10] In the drive system (10) according to the aspect 8 or 9.
-The input shaft (1) is supported by the output shaft (2) by the first bearing (41) and by the motor covering (28) by the second bearing (42).
-The input shaft (1) protrudes from both sides of the transmission housing (25).
-The output shaft (2) is supported by the transmission covering (29) by the third bearing (43) and by the input shaft (1) by the fourth bearing (44).
The drive system (10), characterized in that.
[Aspect 11] In the drive system (10) according to any one of aspects 8 to 10, the first rotor shaft (3) is attached to the transmission covering (29) by a fifth bearing (45). The drive system (10), characterized in that it is supported by the central web or the motor covering (28) in a sixth bearing (46).
[Aspect 12] In the drive system (10) according to any one of aspects 8 to 11, the second rotor shaft (4) is a seventh bearing (47) and the drive shaft (1) or the above. A drive system (10) characterized in that a central web (27) is attached to the input shaft (1) or the motor covering (28) with an eighth bearing (48).
[Aspect 13] In the drive system (10) according to the second aspect and according to any one of the eighth to twelfth aspects.
-The second connecting shaft (6) in the second shaft train (22) is the transmission covering (29) in the ninth bearing (49) and the central web in the tenth bearing (50). (27) or attached to the motor covering (28),
-The third connecting shaft (7) is supported by the second connecting shaft (6) by the eleventh bearing (51) and by the central web (27) by the twelfth bearing (52). ,
-The first connection shaft (5) is supported by the thirteenth bearing (53) on the third connection shaft (7) and by the fourteenth bearing (54) on the second connection shaft (6). Has been
A fifteenth bearing (55) transmits an axial force between the third connecting shaft (7) and the central web (27).
The 16th bearing (56) transmits an axial force between the first connecting shaft (5) and the third connecting shaft (7).
The drive system (10), characterized in that.
[ Aspect 14] In the drive system (10) according to any one of aspects 10 to 13 when subordinate to aspect 9 or aspect 9, the first bearing (41) and the second bearing (44). A freewheel (40) is arranged between the input shaft (1) and the output shaft (2) to prevent the input shaft (1) from rotating faster than the output shaft (2). The drive system (10), characterized in that.
[Aspect 15] In the drive system (10) according to any one of aspects 1 to 14, the first resolver (57) including a sensor and an encoder wheel for measuring an angular position and a rotational speed is the first resolver. A second resolver (58) installed on the rotor shaft (3) and / or including a sensor and an encoder wheel for measuring an angular position and a rotational speed is installed on the second rotor shaft (4). And / or a rotational speed sensor (59) is installed on the input shaft and / or an acceleration sensor and / or a tilt sensor (24) is installed on the transmission housing (25). The drive system (10), characterized in that.
[Aspect 16] An electrically assisted bicycle comprising the drive system according to any one of aspects 1 to 15.

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DE102018001795.9A DE102018001795B4 (en) 2018-03-06 2018-03-06 Drive system
PCT/EP2019/055734 WO2019175022A1 (en) 2018-03-06 2019-03-07 Drive system

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